JP2002189227A - Liquid crystal display device and portable terminal or display instrument in which liquid crystal display device is disposed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display device wherein the dimension is reduced and miniaturization is attained. SOLUTION: In the liquid crystal display device S, a segment transparent electrode group 10 formed on a substrate 1 is extended through one side part of a sealing resin 7 to form a connection terminal 8 for the segment, a wiring pattern 5 formed by extending a connection terminal 6 for the common provided along the one side part of the sealing resin 7 through the one side part of the sealing resin 7 is formed between the other side part of the sealing resin 7 and a display part 3, a conductive connection part 22 for supplying current between the substrate 1 and a substrate 2 is provided between the other side part of the sealing resin 7 and the display part 3 or within the other side part of the sealing resin 7 and the wiring pattern 5 and a common transparent electrode group 4 are energized and connected with each other through the conductive connection part 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an STN liquid crystal display device in which connection terminals for connecting semiconductor elements on a substrate are formed along one side or two opposite sides of a rectangular display area. Further, the present invention relates to a portable terminal or a display device provided with such a liquid crystal display device.

[0002]

2. Description of the Related Art In recent years, small-sized liquid crystal display devices, for example, liquid crystal display devices for cellular phones and the like have been mass-produced.

FIG. 3 and FIG. 4 show that this miniaturized STN
The liquid crystal display device P of the system will be described.

FIG. 3A is a plan view of the liquid crystal display device P, FIG. 3B is a right side view thereof, and FIG. 3C is an upper side view thereof. FIG. 4 is a cross-sectional view taken along line aa of FIG. 3A.

In the liquid crystal display device P, a driver I
Two Cs are used, one for the segment and the other for the common, each of which is mounted on the outside of two sides of the rectangular glass substrate bonding structure along the two sides.

For mounting, a TCP (tape carrier package) or COF (chip on film) on which a driver IC is mounted is used. In the liquid crystal display device P, TCP and COF are arranged side by side in a glass substrate bonding structure, but they are not shown.

According to this glass substrate bonding structure, the display unit 3 is provided on the bonding surface of the glass substrate 1 and the glass substrate 2.

On the glass substrate 2, n transparent electrode groups 4 made of ITO and a transparent electrode group 4
And a trapezoidal wiring pattern 5 formed by extending
On the other glass substrate 1, a segment transparent electrode group 10 made of ITO, and the segment transparent electrode group 10
And a trapezoidal wiring pattern 9 formed by extending
The area where the common transparent electrode group 4 and the segment transparent electrode group 10 intersect is the display unit 3.

Further, a sealing resin 7 is provided around the outside of the display section 3, the glass substrate 1 is bonded to the glass substrate 2 with the sealing resin 7, and a liquid crystal 12 is injected into the internal space through an injection port 13. And sealing with a sealing resin 7.
Reference numeral 11 denotes a UV curable resin, which has a purpose of sealing the injected liquid crystal.

When the number of the segment transparent electrode groups 10 is m, the number of pixels is m × n. In the colorized liquid crystal display device P, one pixel is composed of R (red) and G (green). , B
(Blue), the number of pixels is m × n
In this case, the segment transparent electrode group 10 is set to (3 ×
m) A book is provided.

Further, a common side terminal group 6 and a segment side terminal group 8 made of ITO or the like for connecting TCP or COF are formed on two end sides of the glass substrate 1, and an anisotropic conductive film is formed thereon. Thermocompression bonding using

The conductive particles 14 are contained in the sealing resin 7, so that the common side terminal group 6 is electrically connected to the common transparent electrode group 4 via the wiring pattern 5 and the conductive particles 14 spreading in a fan shape.

An alignment film 23 for aligning the liquid crystal 12 is formed on the common transparent electrode group 4, and an alignment film 24 is formed on the other segment transparent electrode group 10.
Spacers 45 are dispersed between the substrate and the alignment film 24 to keep the substrate gap constant.

Each of the segment transparent electrode group 10 and the segment side terminal group 8 has m × 3 lines, and the common transparent electrode group 4 and the common side terminal group 6 have n lines. ing.

Thus, in the liquid crystal display device P having the above structure, the sealing resin 7 containing the conductive particles 14
By energizing the common side terminal group 6, the wiring pattern 5, and the common transparent electrode group 4, the wiring pattern 5 on the glass substrate 2 is drawn out to the common side terminal group 6 on the glass substrate 1,
It can be connected to TCP and COF together with other segment side terminal groups 8 (Japanese Patent Laid-Open No. 8-1793).
No. 48).

[0016]

However, according to the liquid crystal display device P having the above structure, two driver ICs are used, one of which is used for a segment, and the other is used for a common.
It is required to reduce the number of driver ICs by mounting each of them along two sides of a rectangular glass substrate bonding structure and outside thereof.

Therefore, it can be said that it is desirable to integrate the driver ICs having both IC functions into one, thereby reducing the cost of the IC and the mounting.

A liquid crystal display device having one driver IC mounted thereon will be described with reference to FIGS.

FIG. 5A is a plan view of the liquid crystal display device P1, FIG. 5B is a right side view thereof, and FIG. 5C is an upper side view thereof. 6 is an enlarged view of a main part B shown in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line cc of FIG. In these drawings, the same portions as those of the liquid crystal display device P are denoted by the same reference numerals.

As shown in FIG. 5, the display unit 3 is vertically divided into two parts. In FIG. 5A, the upper part of the common transparent electrode group 4 is led out to the right and the lower part of the common transparent electrode group 4 is led out to the left. Then, both are formed as the wiring patterns 5 on the glass substrate 2, and these wiring patterns 5 are extended to the inter-substrate conducting portions 18 and 19.

The inter-substrate conducting portions 18 and 19 are used to supply current to both the wiring of the glass substrate 1 and the wiring of the glass substrate 2. In this embodiment, as shown in FIG. 7, a sealing resin containing the conductive particles 14 is used. 7 is used.

As described above, the two wiring patterns 5 are passed through the inter-substrate conducting portions 18 and 19 having the above-described configuration to allow the glass substrate 1
It extends to both sides of the segment side terminal group 8 at the top, thereby being connected to the fan-shaped wiring pattern 20 made of ITO and further connected to the common side terminal group 6.

On the other hand, the segment side terminal group 8 is connected to a segment transparent electrode group 10 made of ITO via a wiring pattern 9 made of ITO spreading in a fan shape.

Further, assuming that the n common transparent electrode groups 4 are 1 to n ′ and n ′ + 1 to n th in order from the top (1 <n ′ <n),
Normally, n ′ is almost half the value of n, but if it is made to correspond to the common-side terminal group 6, in the right block of the common-side terminal group 6, the leftmost one is counted from the rightmost terminal to the left in order. The terminal is the n'-th terminal, and in the left block of the common-side terminal group 6, the leftmost terminal is the n '+ 1-th terminal and is counted to the right in order, and the rightmost terminal is the n-th terminal.

On the other hand, m × 3 segment transparent electrode group 1
When 0 is 1 to m × 3 in order from the right and the segment side terminal group 8 is associated with the segment side terminal group 8, the rightmost terminal of the segment side terminal group 8 is counted first to the left in order and the leftmost terminal is m × 3 become.

As shown in FIGS. 5 and 6, alignment markers 15 are formed on the glass substrate 1 in the vicinity of both common side terminal groups 6, and these markers are used for TCP or COF crimping. Perform alignment.

Next, FIGS. 8 and 9 show a case where a lighting test is performed in the liquid crystal display device P1 having the above-mentioned structure without fixing the TCP or COP by pressure bonding.

FIG. 8 is a perspective view of the conductive rubber 29 used for pressure bonding. FIG. 9 is a bottom view of the liquid crystal display device P1 shown in FIG. 5A. Are side views as viewed from the printed circuit board 28 side. FIG. 10 is a cross-sectional view taken along section line dd in FIG.

The electrodes 25 and 27 are provided on the printed circuit board 28.
Is formed, and thereby a voltage is applied to the common-side terminal group 6 on the glass substrate 1. Further, the printed circuit board 28
An electrode 26 is also formed on the glass substrate 1, whereby a voltage is applied to the segment side terminal group 8 on the glass substrate 1.

The conductive rubber 29 is independently contacted with the two blocks of the common side terminal group 6 and the segment side terminal group 8 on the glass substrate 1. As a result, three conductive rubbers 29 are used, but different voltages are applied between the common-side terminal group 6 and the segment-side terminal group 8 to apply a voltage between the common transparent electrode group 4 and the segment transparent electrode group 10. Is applied to the liquid crystal display device P1.
A lighting inspection is performed.

When the lighting inspection of the liquid crystal display device P1 having the above-described structure is performed by this method, if the segment side terminal group 8 and the common side terminal group 6 are close to each other, the conductive rubber contacting the segment side terminal group 8 A short circuit occurs between the conductive rubber 29 in contact with the common-side terminal group 29 and the common-side terminal group 6, which makes it impossible to perform a lighting test. Therefore, in order to solve such a problem, the common-side terminal group 6 and the segment-side terminal group 8 Spaces 16 and 17 of a certain size are provided between them.

On the other hand, in the inter-substrate conducting portions 18 and 19, it is necessary to increase the wiring width as much as possible in order to increase the contact area of the conductive particles 14 in the sealing resin 7 and ensure conduction.

That is, as shown in FIG. 10, a large number of conductive particles 14 are required to be in contact with each other in the inter-substrate conduction portion 18 so that a stable connection with a low conduction resistance requires a wiring pattern 5 having a certain width or more. In addition, in order to prevent short-circuiting between adjacent wiring patterns due to the conductive particles 14, a certain gap between the patterns is required. At present, the minimum wiring pitch (= wiring pattern width +
(Pattern gap) is the minimum terminal pitch of the common side terminal group 6.
(About 60 μm).

Therefore, a wiring portion (dimension L) by the wiring pattern 20 spreading in a fan shape from the common side terminal group 6 is required, which complicates the wiring layout, and increases the vertical dimension of the panel in FIG. as a result,
It has not been able to meet the market needs for miniaturization in recent years.

For example, the commercial value of a liquid crystal panel for a cellular phone having a limited panel size is low.

That is, as shown in FIG. 5A, if the widths W1 and W2 of the peripheral portion formed by the wiring pattern 5 and the sealing resin 7 formed around the display section 3 are sufficiently large, the common-side terminal group 6 on the lower side of the panel can be used. Since the terminal pitch can be increased and the wiring can be raised vertically to the inter-substrate conducting parts 18 and 19, the wiring part (dimension L) by the wiring pattern 20 is unnecessary. However, in a liquid crystal panel for a mobile phone, Since a small space design that fits in the palm creates commercial value, the dimensions W1 and W2 should be as small as possible. For this reason, the routing part (dimension L) by the wiring pattern 20 becomes necessary and complicated, the vertical dimension of the panel in FIG. 5A becomes large, and it has not responded to recent market needs for miniaturization.

Accordingly, the present invention has been completed in view of the above, and an object of the present invention is to provide a liquid crystal display device having a reduced size by achieving a reduced size.

Another object of the present invention is to provide a liquid crystal display device suitable for a portable terminal such as a portable telephone.

Still another object of the present invention is to provide a display device aiming at further miniaturization.

[0040]

According to the liquid crystal display device of the present invention, a segment side substrate formed by sequentially laminating a segment transparent electrode group and an alignment film, and a common transparent electrode group and an alignment film are sequentially laminated. And a common-side substrate, so that both transparent electrodes face each other at right angles to provide a rectangular display unit,
Further, a liquid crystal layer is filled inside a seal member provided in a rectangular shape so as to bond both substrates, and a segment transparent electrode group formed on the segment side substrate extends through one side of the seal member. A wiring pattern in which common connection terminals arranged side by side along one side of the seal member and extending through one side of the seal member is formed as a connection terminal for a segment. Between the other side of the sealing member and the display,
Alternatively, a conductive connection portion for supplying electricity between the segment side substrate and the common side substrate is provided in the other side portion of the sealing member, and the wiring pattern and the common transparent electrode group are electrically connected through this conductive connection portion. It is characterized by the following.

A portable terminal or a display device according to the present invention is provided with the liquid crystal display device according to the present invention.

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a liquid crystal display device of the present invention will be described with reference to (Example 1) to (Example 7). (Example 1) A liquid crystal display device S of the present invention will be described with reference to FIGS.
The liquid crystal display device S1 in FIG. 11 and FIG. 12 in Example 2 and the liquid crystal display device S2 in FIG.
The liquid crystal display device S3 will be described with reference to FIG. 14 in (Example 4), and the liquid crystal display device S4 will be described with reference to FIG. 15 in (Example 5). The liquid crystal display device S5 in (Example 6) will be described with reference to FIGS. 16 to 19, and the liquid crystal display device S6 in (Example 7) will be described with reference to FIG.

(Example 1) FIG. 1A is a plan view of the liquid crystal display device S, FIG. 1B is a right side view thereof, and FIG. 1C is an upper side view thereof.
FIG. 2 is a sectional view taken along the line ee in FIG. In these figures, the liquid crystal display devices P, P
The same parts as those of 1 are denoted by the same reference numerals.

In the liquid crystal display device S, a display unit 3 is provided in a glass substrate bonding structure of a glass substrate 1 and a glass substrate 2.

On the glass substrate 2, n common transparent electrode groups 4 made of ITO and an alignment film 23 for aligning the liquid crystal 12 are sequentially formed, and on the other glass substrate 1, ITO is formed. A segment transparent electrode group 10 comprising:
The alignment films 2 are sequentially formed, and spacers 45 are dispersed between the alignment films 23 and 24 to keep the substrate gap constant. Each of the segment transparent electrode group 10 and the segment side terminal group 8 has m × 3, and the common transparent electrode group 4 and the common side terminal group 6 each have n.

The area where the common transparent electrode group 4 and the segment transparent electrode group 10 intersect is the display section 3.

Further, a sealing resin 7 containing conductive particles 14 is provided on the outer side of the display section 3, and the glass substrate 1 and the glass substrate 2 are bonded together with the sealing resin 7, and a liquid crystal 12 is filled in the internal space. It is injected through the inlet 13 and sealed with the sealing resin 7.

When the number of the segment transparent electrode groups 10 is m, the number of pixels is (m × n). In the colorized liquid crystal display device S, one pixel is composed of R (red) and G
(Green) and B (blue), and when the number of pixels is m × n, the segment transparent electrode group 10
Are provided (3 × m).

As shown in FIG. 1A, a common side terminal group 6 and a segment side terminal group 8 made of ITO or the like are arranged side by side on the lower side of the glass substrate 1 outside one side of the sealing resin 7. TCP or CO is formed on these using an anisotropic conductive film or the like.
Connect to F.

The terminal group 8 on the segment side is formed of a fan-shaped IT
The ITO wiring extending from the common side terminal group 6 is connected to the segment transparent electrode group 10 made of ITO through the wiring pattern 9 made of O, and extends upward as shown in FIG. Connected. The wiring pattern 5 routed in this manner is, on the glass substrate 1, a sealing resin 7 on the right side, which is the other side.
It is configured to bend toward.

The wiring pattern 5 is connected to the inter-substrate conducting portion 22.
Extend to. The inter-substrate conducting portion 22 is used to supply current to both the wiring of the glass substrate 1 and the wiring of the glass substrate 2, and in this example, a sealing resin 7 containing conductive particles 14 is used as shown in FIG.

By providing the inter-substrate conducting portion 22 having such a configuration, the wiring pattern extending rightward from the common transparent electrode group 4 made of ITO on the glass
4 through the resin seal 7 containing the conductive material 4, and is electrically connected to the wiring pattern 5.

When the liquid crystal display device S is used for color liquid crystal display, one pixel in the vertical direction is R (red), G
(Green) and B (blue), one of the glass substrates 1
The number of the segment transparent electrode groups 10 formed of ITO and formed in the vertical direction is m × 3, and the common transparent electrode group 4 formed of ITO and formed in one of the glass substrates 2 and arranged in the horizontal direction. Is n.

In the case where the n common transparent electrode groups 4 are the first to n-th electrodes in order from the top, if they correspond to the common-side terminal group 6, the common-side terminal group 6 will be arranged in order from the leftmost terminal to the first one. Counting to the right, the rightmost terminal is the nth terminal.

If the m × 3 segment transparent electrode group 10 is 1 to m × 3 in order from the right and is made to correspond to the segment side terminal group 8, the rightmost terminal of the segment side terminal group 8 is ordered in the first line. , And the leftmost terminal is the mx3 terminal. In the case of monochrome display, R, G, and B are unnecessary, and the number of the segment transparent electrode groups 10 is m.

Thus, the conventional liquid crystal display device P shown in FIG.
In 1, the wiring pattern 20 spreading in a fan shape between the seal resin 7 and the common-side terminal group 6 is provided, so that the space is increased by that amount. However, in the liquid crystal display device S of this embodiment, Eliminating such a fan-shaped wiring pattern eliminates the need for the space, and as a result, downsizing is achieved.

The lighting test for the liquid crystal display device S is performed in the same manner as in the prior art without fixing the TCP or COP by pressure bonding. This test will be described below.

FIG. 26 is a side view of FIG. 1A viewed from the side of the printed circuit board 28 in which printed circuit boards 28 for turning on the liquid crystal display device S are arranged side by side.

The electrodes 25 are formed on the printed circuit board 28, whereby the common side terminal group 6 on the glass substrate 1 is formed.
Is applied. Further, an electrode 26 is also formed on the printed circuit board 28, thereby applying a voltage to the segment side terminal group 8 on the glass substrate 1.

The conductive rubber 29 is independently contacted with the common side terminal group 6 and the segment side terminal group 8 on the glass substrate 1. As a result, two conductive rubbers 29 are used, but different voltages are applied between the common-side terminal group 6 and the segment-side terminal group 8 to apply a voltage between the common transparent electrode group 4 and the segment transparent electrode group 10. The lighting inspection of the liquid crystal display device S is performed by applying a voltage to the liquid crystal display device S.

The segment side terminal group 8 and the common side terminal group 6
Are close to each other, the conductive rubber 29 that contacts the segment side terminal group 8 and the conductive rubber 2 that contacts the common side terminal group 6.
9 is short-circuited, which makes it impossible to perform a lighting test. To solve such a problem, a space 21 having a certain width is provided between the common-side terminal group 6 and the segment-side terminal group 8. ing.

Hereinafter, similar spaces are provided in the liquid crystal display devices S1 to S6 of (Example 2) to (Example 7).

(Example 2) FIG. 11A is a plan view of the liquid crystal display device S1, FIG. 11B is a right side view thereof, and FIG. 11C is an upper side view thereof. FIG. 12 is a sectional view taken along the line ff of FIG. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

In the liquid crystal display device S of (Example 1), the sealing resin 7 containing the conductive particles 14 was used as the inter-substrate conducting portion 22, but instead the inter-substrate made of the conductor 30 such as silver paste was used. A conductive portion 31 is provided between the display portion 3 and the sealing resin 7 along the sealing resin 7 which is the other side portion. Other configurations are the same as those of the liquid crystal display device S.

As shown in FIG. 11A, the wiring pattern 5 made of ITO is extended upward, and the wiring pattern 5 thus routed is placed on the right conductor 3 on the glass substrate 1.
It bends toward the inter-substrate conducting portion 31 made of 0 and extends to the inter-substrate conducting portion 31. By providing the inter-substrate conducting portion 31 having such a configuration, the substrate is formed of ITO on the glass substrate 2. The wiring pattern extending rightward from the common transparent electrode group 4 is conducted through the conductor 30 and is electrically connected to the wiring pattern 5.

Further, similarly to the liquid crystal display device S of (Example 1), the n common transparent electrode groups 4 are sequentially numbered 1 to n from the top and correspond to the common side terminal group 6, so that the common side terminal group In 6, the rightmost terminal is the n-th terminal, counting from the leftmost terminal to the right in order. When the mx3 segment transparent electrode group 10 is 1 to mx3 in order from the right and is made to correspond to the segment side terminal group 8, the rightmost terminal of the segment side terminal group 8 is the first one in order to the left. Counting the leftmost terminal is mx3.

Thus, also in the liquid crystal display device S1 of this embodiment, the fan-shaped wiring pattern (wiring pattern 20 spreading in a fan shape shown in FIG. 5) as in the prior art is eliminated, so that the space becomes unnecessary, and as a result, the size is reduced. Is achieved.

Example 3 FIG. 13A is a plan view of the liquid crystal display device S2, FIG. 13B is a right side view thereof, and FIG. 13C is an upper side view thereof. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

In this example, as shown in FIG. 13A, the display unit 3 is vertically divided into two parts. In FIG. 13A, the upper part of the common transparent electrode group 4 is located on the right side, and the lower part of the common transparent electrode group is located. 4 is led out to the left, and both are connected to the inter-substrate conducting portions 34, 3
Extend to 5 These inter-substrate conducting portions 34 and 35 are used to make the wiring of both the glass substrate 1 and the glass substrate 2 conductive, and in this example, as shown in FIG.
4 is used. The wiring extends from the wiring pattern 5 to the vicinity of both sides of the segment side terminal group 8 on the glass substrate 1 through the inter-substrate conducting portions 34 and 35 having such a configuration, and is connected to the common side terminal group 6.

The wiring structure will be described in more detail. The segment side terminal group 8 is connected to the segment transparent electrode group 10 through a wiring pattern 9 made of ITO which spreads in a fan shape. As shown in (1), the wiring extends vertically and is connected to a wiring pattern 5 made of ITO.

Since such wiring patterns 5 are formed on both sides of the display section 3, they are distinguished into the wiring patterns 5 of the I block and the wiring patterns 5 of the II block.

The wiring pattern 5 of the I block is routed upward, bent horizontally to the sealing resin 7 on the right side, and is electrically connected to the common transparent electrode group 4 on the glass substrate 2 through the inter-substrate conduction portion 34.

The wiring pattern 5 of the II block is also routed upward, is bent horizontally to the sealing resin 7 on the left side, and is electrically connected to the common transparent electrode group 4 on the glass substrate 2 through the inter-substrate conduction portion 35.

When the n common transparent electrode groups 4 and the common side terminal groups 6 are associated with each other, the wiring pattern 5 of the I block is counted from the leftmost terminal to the right in order from the leftmost terminal. The terminal is the n'-th terminal, and regarding the wiring pattern 5 of the II block, the right-most terminal is the n '+ 1-th and the leftmost terminal is the n-th terminal in order. If the mx3 segment transparent electrode group 10 is 1 to mx3 in order from the right and is made to correspond to the segment side terminal group 8, the rightmost terminal of the segment side terminal group 8 is counted to the left in order with the first one. And the leftmost terminal is m × 3
Be the first one. 32 and 33 are spaces.

Thus, also in the liquid crystal display device S2 of the present embodiment, miniaturization is achieved as described above.

The dimensions of the liquid crystal display device S2 are compared with those of the conventional liquid crystal display device P1 shown in FIG. Both have a pixel pitch of 0.08 mm × 3 (R, G, B) and a length of 0.24 mm. Pixel count: 120 × 160 Each pitch of the segment side terminal group 8 and the common side terminal group 6:
When it is set to 0.06 mm, the size of the glass substrate 1 of the conventional liquid crystal display device P1 is 40 mm × 48 mm, whereas the size of the glass substrate 1 of the liquid crystal display device S2 of the present example is 40 mm.
mm × 45-46 mm.

(Example 4) FIG. 14A is a plan view of the liquid crystal display device S3, FIG. 14B is a right side view thereof, and FIG. 14C is an upper side view thereof. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

The liquid crystal display device S2 of (Example 3)
The display unit 3 is divided into two parts vertically, and both common transparent electrode groups 4
Is extended to the vicinity of both sides of the segment side terminal group 8 on the glass substrate 1 so as to be energized with the common side terminal group 6. In the liquid crystal display device S3 of this example, such a configuration is adopted. Combined.

That is, the common transparent electrode group 4 is divided into four blocks, which are referred to as a III block, an IV block, a V block, and a VI block. The III block and the IV block constitute the above-described liquid crystal display device S2. , V block and VI block, another similar liquid crystal display device S2
And

As shown in FIG. 14A, for the V block and the VI block, the right common connection terminal group 6 is connected to the common transparent electrode group 4 of the V block of the display unit 3.
, And the left common connection terminal group 6 is connected to the common transparent electrode group 4 of the VI block of the display unit 3.

For the III block and the IV block, the right common connection terminal group 6 is connected to the common transparent electrode group 4 of the III block of the display unit 3, and the left common connection terminal group 6 is connected to the IV block of the display unit 3. Connected to common transparent electrode group 4.

The lower segment side terminal group 8 is connected to the ITO segment transparent electrode group 10 via the fan-shaped ITO wiring pattern 9, and the upper segment side terminal group 8 is a fan-shaped ITO wiring pattern 47. Transparent electrode group 48 made of ITO through
Connected to The segment transparent electrode group 10 and the segment transparent electrode group 48 are not connected at the center of the display unit 3.

The wiring from the lower common side terminal group 6 is shown in FIG.
As shown in A, it rises vertically and is connected to a wiring pattern 5 made of ITO. After the wiring pattern 5 formed on the lower right side of the glass substrate 1 is routed vertically upward,
The glass substrate 1 is horizontally folded toward the sealing resin 7 formed on the right side.

In the inter-substrate conduction portion 49 formed near the right side of the glass substrates 1 and 2, the conductive particles 14 are transferred from the common transparent electrode group 4 of the V block made of ITO to the wiring pattern extending rightward on the glass substrate 2. It is conducted through the contained sealing resin 7.

The wiring pattern 5 formed on the lower left side of the glass substrate 1 is vertically routed upward and then horizontally bent toward the resin seal 7 on the left side of the glass substrate 1.

The inter-substrate conduction portion 5 on the left side of the glass substrates 1 and 2
At 0, conduction is established from the common transparent electrode group 4 of the VI block made of ITO on the glass substrate 2 to the wiring pattern extending to the left via the resin seal 7 containing the conductive particles 14.

The wiring from the upper common side terminal group 6 is connected to the wiring pattern 5 made of ITO falling vertically.

That is, the wiring pattern 5 on the upper right side on the glass substrate 1 is vertically routed downward, and then horizontally bent to the resin seal 7 on the right side of the glass substrate 1. In the inter-substrate conduction portion 51 on the right side of the glass substrates 1 and 2, the glass substrate 2
Common transparent electrode group 4 of III block composed of above ITO
To the wiring pattern extending to the right through the resin seal 7 containing the conductive particles 14.

The wiring pattern 5 on the upper left side of the glass substrate 1 is vertically routed downward and then horizontally folded into the resin seal 7 on the left side of the glass substrate 1. Glass substrates 1, 2
In the inter-substrate conduction portion 52 on the left side of
Conduction is conducted from the common transparent electrode group 4 of the IV block made of TO to the wiring pattern extending to the left via the resin seal 7 containing the conductive particles 14.

Next, the connection between each terminal group and the transparent electrode group will be described. The n common transparent electrode groups 4 are sequentially arranged from the top in the order of 1 to n / 4, n / 4 + 1 to n / 2, n / 2 + 1 to 3n / 4, 3n / 4 +
Let it be the 1st to nth. When corresponding to the common side terminal group 6,
On the right side of the upper common side terminal group 6, one
The leftmost terminal is the n / 4th terminal, counting to the left in order, and the leftmost terminal on the left side of the upper common side terminal group 6 is
Counting to the right in order of n / 4 + 1, the rightmost terminal is the n / 2-th terminal. On the right side of the lower common side terminal group 6, the rightmost terminal is 3n / 4 counting from the leftmost terminal to the right in order of n / 2 + 1st.
On the left side of the lower common-side terminal group 6, the rightmost terminal is 3n / 4 + 1 and the leftmost terminal is the n-th terminal in order. 36 to 39 are spaces.

Thus, also in the liquid crystal display device S3 of this embodiment, the fan-shaped wiring pattern (wiring pattern 20 spreading in a fan shape shown in FIG. 5) as in the prior art is eliminated, so that the space becomes unnecessary, and as a result, the size is reduced. Is achieved.

(Example 5) FIG. 15A is a plan view of the liquid crystal display device S4, FIG. 15B is a right side view, and FIG. 15C is an upper side view. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

In this liquid crystal display device S4, a connection terminal group is provided on each of two opposite sides of the glass substrate 1, and each connection terminal group is connected to the central segment connection terminal group 8
And the common connection terminal group 6 formed next to the segment connection terminal group 8.

The display unit 3 has two vertical parts as shown in FIG.
In the connection terminal group on the upper side, the upper left common connection terminal group 6 is connected to the common transparent electrode group 4 in the VII block on the upper side of the display unit 3, and in the lower side connection terminal group, the lower right common connection group The terminal group 6 is located on the lower side of the display unit VIII.
The segment side terminal group 8 near the upper side of the substrate connected to the common transparent electrode group 4 of the block is connected to the segment transparent electrode group 48 made of ITO via the wiring pattern 47 made of ITO spreading in a fan shape, and the segment near the lower side of the substrate is made. The side terminal group 8 is connected to a segment transparent electrode group 10 made of ITO via a wiring pattern 8 made of ITO spreading in a fan shape. Note that the segment transparent electrode group 48 and the segment transparent electrode group 10 are not connected at the center of the display unit 3.

The wiring from the upper common terminal group 6 is made of ITO.
Is connected to the wiring pattern 5 consisting of: After the wiring pattern 5 on the glass substrate 1 is routed, it is horizontally bent to the resin seal 7 on the left side of the glass substrate 1. The IT on the glass substrate 2 at the inter-substrate conduction portion 57 on the left side of the glass substrates 1 and 2
Conduction is made via the resin seal 7 containing the conductive particles 14 to the wiring pattern extending to the left from the common transparent electrode group 4 of the VII block made of O.

The wiring from the lower common side terminal group 6 rises vertically and is connected to the wiring pattern 5 made of ITO. After the wiring pattern 5 on the glass substrate 1 is routed vertically upward, it is horizontally bent to the resin seal 7 on the right side of the glass substrate 1. The inter-substrate conduction portion 56 on the right side of the glass substrates 1 and 2
Is conducted from the common transparent electrode group 4 of the VIII block made of ITO on the glass substrate 2 to the wiring pattern extending to the right via the resin seal 7 containing the conductive particles 14.

The connection between each terminal group and the transparent electrode group will be described. The n common transparent electrode groups 4 are sequentially numbered 1 to n /
2, n / 2 + 1 to n-th. Corresponding to the common side terminal group 6, in the upper common side terminal group 6, the first terminal from the leftmost terminal is counted in order to the right and the rightmost terminal is the n / 2th terminal,
In the lower common side terminal group 6, n /
The rightmost terminal is the n-th terminal, counting to the right in order of 2 + 1.
54 and 55 are spaces.

Thus, also in the liquid crystal display device S4 of the present embodiment, since the fan-shaped wiring pattern (wiring pattern 20 spreading in a fan shape shown in FIG. 5) as in the prior art is eliminated, the space becomes unnecessary, and as a result, the size is reduced. Is achieved.

In this example, the inter-substrate conduction section 56 and the inter-substrate conduction section 57 are provided via the display section 3. However, in order to further reduce the size in the horizontal direction, one side of the display section 3 is required. It is better to adopt a wiring configuration in which only the inter-substrate conduction portion 56 and the inter-substrate conduction portion 57 are provided.

Example 6 FIG. 16A is a plan view of the liquid crystal display device S5 of the present example, FIG. 16B is a right side view, and FIG. 16C is an upper side view. 17 is a cross-sectional view taken along the line GG of FIG. 16, FIG. 18 is a cross-sectional view taken along the line g′-g ′ of FIG. 16, and FIG.
It is sectional drawing by "-g". In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

In each of the above-described examples, the wiring pattern 5 and the wiring pattern 9 are formed of ITO. However, instead of this, a metal layer having excellent conductivity, for example, aluminum (Al), an aluminum alloy, or a silver (Ag) alloy is used. And the like.

That is, if the output wiring resistance from the driver IC is high, the voltage applied to the common transparent electrode group 4 and the segment transparent electrode group 10 of the display unit 3 becomes insufficient, and stable display cannot be obtained. So, ITO
It is preferable to use a metal layer having a lower resistance than the above.

According to the liquid crystal display device S5, the case where the wiring pattern 5 and the wiring pattern 9 are formed of aluminum metal (Al) is shown, and the wiring is indicated by hatching.

A segment-side terminal group 8 made of ITO is provided on one lower side of the glass
And a common-side terminal group 6 made of ITO is formed divided into two blocks.

The segment side terminal group 8 is made of Al
Is connected to a segment transparent electrode group 10 made of ITO via a wiring pattern 9 made of ITO. The wiring from the common side terminal group 6 made of ITO rises vertically and
Is connected to the wiring pattern 5 consisting of:

After the wiring pattern 5 of the I block on the glass substrate 1 is routed vertically upward, it is horizontally bent to the resin seal 7 on the right side of the glass substrate 1. ITO on the glass substrate 2 at the inter-substrate conduction portion 43 on the right side of the glass substrates 1 and 2
From the common transparent electrode group 4 composed of the conductive particles to the wiring pattern extending to the right via the resin seal 7 containing the conductive particles 14.

The Al block II on the glass substrate 1
After the wiring pattern 5 consisting of
The glass substrate 1 is horizontally folded into a resin seal 7 on the left side. In the inter-substrate conducting portion 44 on the left side of the glass substrates 1 and 2, conduction is conducted from the common transparent electrode group 4 made of ITO on the glass substrate 2 to the wiring pattern extending to the right via the resin seal 7 containing the conductive particles 14. . Also, the wiring pattern 5
It is drawn around the inside surrounded by the resin seal 7.

FIG. 17 showing a cross section gg of the inter-substrate conducting portion 43.
According to the above, the surface of the wiring pattern 5 made of Al on the glass substrate 1 is made of ITO in the sealing resin portion.
Conduction is conducted from TO to the wiring pattern made of ITO extending rightward from the common transparent electrode group 4 on the glass substrate 2 via the conductive particles 14 in the sealing resin. The same applies to the inter-substrate conduction section 44.

An alignment film 23 for aligning the liquid crystal 12 is formed on the common transparent electrode group 4, and an alignment film 24 for aligning the liquid crystal 12 is also formed on the segment transparent electrode group 10. Spacers 45 are dispersed between the films 23 and 24 to keep the substrate gap constant.

The connection between each transparent electrode group and each terminal group is shown in FIG.
This is the same as the liquid crystal display device S2.

Thus, in the liquid crystal display device S5 of this example, the wiring pattern 5 and the wiring pattern 9 are formed of a metal layer having excellent conductivity, for example, made of aluminum (Al), aluminum alloy, silver (Ag) alloy, or the like. Thus, the common transparent electrode group 4 and the segment transparent electrode group 1 of the display unit 3
The voltage applied to 0 was no longer insufficient, so that a stable display was obtained.

[Regarding the Thickness of the Metal Layer of the Wiring Patterns 5 and 9] When the film forming the wiring pattern on the glass substrate 1 is a metal film such as Al which is different from ITO.
If the thickness of the AL is extremely large compared to the thickness of the ITO film on the glass substrate 1 or the thickness of the ITO film on the glass substrate 2, it becomes difficult to keep the gap between the glass substrates 1 and 2 constant. .

For example, FIG. 16 shows a case where the thickness of the ITO film on the glass substrate 1 and the thickness of the ITO film on the glass substrate 2 are 2000 Å and the thickness of the Al metal layer is 10000 Å.
FIG. 18 is a cross-sectional view taken along the line g′-g ′ of FIG.

The inter-substrate gap between the Al portion of the wiring pattern 5 on the glass substrate 1, the ITO portion on the glass substrate 2 facing this portion, and the I
The TO and the gap between the substrates in the area between the ITO on the glass substrate 2 are different from each other.

The gap between the glass substrates 1 and 2 is set by dispersing spacers 45 of fine particles on an alignment film of a polyimide synthetic resin formed on the wiring pattern of the glass substrates 1 and 2. , But the gap between the substrates is affected by the difference in the metal film thickness above and below the spacer 45.

In the portion H shown in FIG. 18, the spacer 45 enters the portion where the gap between the substrates is narrowed. As a result, the substrate is widened, and if the gap between the substrates is not uniform as described above. As a result, display unevenness occurs. Therefore, keeping the gap between the substrates constant produces a uniform display without color unevenness in the display section of the liquid crystal display device.

In the configuration shown in FIG. 18, the ITO (electrode) film thickness on the glass substrate 1 and the ITO
(Electrode) The film thickness is 2000 Å, and the thickness of the Al metal layer is 10000 、. Therefore, it is difficult to maintain a constant gap between the substrates and provide a uniform display without unevenness.

On the other hand, FIG. 19 shows a case where the thickness of Al is set to 2000 °.

The Al film thickness on the glass substrate 1 was
By making the thickness of the upper ITO film 2000Å and the thickness of the ITO film 2000Å on the glass substrate 2 the same, the gap between the substrates in the display section 3 and the area near the display section 3 can be kept constant. A uniform display can be obtained.

The present inventor formed an ITO film formed on each of the glass substrate 1 and the glass substrate 2 with a film thickness of 2000 Å, and formed the wiring pattern 5 and the wiring pattern 9 in the following manner. Was formed of an Al metal layer having a different thickness, and the display characteristics were evaluated.
The results as shown in Table 1 were obtained.

The table shows the thickness of the Al metal layer and the IT
The ratio with the O film thickness is also described. The display characteristics are indicated by display unevenness. The mark ◎ indicates that no display unevenness was observed and extremely excellent display characteristics were obtained. The mark 〇 indicates that display unevenness was slightly generated, but the display was excellent. In this case, the characteristics were achieved.
The display characteristics are slightly deteriorated, and the X mark is a case where display unevenness is remarkable.

[0122]

[Table 1]

As is clear from this table, the thickness of the Al metal layer was set to 1000 to 3000 °, and the thickness was changed to ITO.
It is understood that the ratio should preferably be 0.5 to 1.5 depending on the ratio to the film thickness.

(Example 7) FIG. 20A is a plan view of the liquid crystal display device S6 of the present example, FIG. 20B is a right side view thereof, and FIG. 20C is an upper side view thereof. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

In order to obtain a uniform display in the liquid crystal display device, the resistance difference is reduced for each output wiring from the driver IC connected to the m × 3 segment transparent electrode group, and n output wirings are provided. It is important to reduce the resistance difference of each output wiring from the driver IC connected to the common transparent electrode group. If the resistance difference of each wiring pattern up to each transparent electrode increases, the difference in voltage drop The voltage applied to the transparent electrode of the display section is different, and uniform display cannot be obtained.

Therefore, in the liquid crystal display device S6 of this example, the ratio of the arrangement of ITO and Al in the wiring pattern from the common side terminal group 6 to the common transparent electrode group 4 is different from that of the liquid crystal display device S5. Is adjusted to reduce the resistance difference between the wiring patterns.

The wiring formed of such Al is indicated by hatching.

On one side of the lower side of the glass substrate 1, a segment side terminal group 8 made of ITO,
And a common-side terminal group 6 made of ITO is formed divided into two blocks.

The segment-side terminal group 8 is formed of a fan-shaped Al
The wiring from the common side terminal group 6 made of ITO is connected to the segment transparent electrode group 10 made of ITO via the wiring pattern 9 made of
Is connected to the wiring pattern 5 consisting of:

After the wiring pattern 5 of the I block on the glass substrate 1 is drawn vertically upward, it is horizontally bent to the resin seal 7 on the right side of the glass substrate 1. In the inter-substrate conduction portion 43 on the right side of the glass substrates 1 and 2, the IT
Conduction is conducted from the common transparent electrode group 4 made of O to the wiring pattern extending to the right via the resin seal 7 containing conductive particles.

The Al block II on the glass substrate 1
After the wiring pattern 5 made of ITO and ITO is drawn vertically upward, the wiring pattern 5 is horizontally bent to the resin seal 7 on the left side of the glass substrate 1. In the inter-substrate conduction portion 44 on the left side of the glass substrates 1 and 2, conduction is conducted from the common transparent electrode group 4 made of ITO on the glass substrate 2 to the wiring pattern extending to the left via the resin seal 7 containing conductive particles. The wiring pattern 5 is routed inside the area surrounded by the resin seal 7.

If the n common transparent electrode groups 4 are 1 to n ′ and n ′ + 1 to n th in order from the top and correspond to the common terminal group 6, the rightmost block of the common terminal group 6 The rightmost terminal is counted n'th from the left terminal in order to the right, and the leftmost terminal is counted n '+ 1 in the left block of the common side terminal group 6 in order. The leftmost terminal is the nth terminal. m × 3 segment transparent electrode group 10
Are arranged in order from right to 1 × m × 3, and the segment side terminal group 8
, The rightmost terminal of the segment side terminal group 8 is 1
Counting to the left in order, the leftmost terminal becomes the m × 3rd terminal.

Here, the longest wiring in the wiring group of the wiring pattern 5 which is a wiring pattern from the common transparent electrode group 4 is the first wiring, which is gradually reduced, and the n′-th wiring and the n ′ + 1-th wiring. , In that order, and the n-th line is the shortest. Therefore, the wiring pattern 5 is formed of the same kind of metal film,
If they are formed with the same film thickness and the same line width, the wiring resistance decreases stepwise from the first line to the nth line, and the first line and the nth line
The resistance difference of the first run becomes very large.

Therefore, in the present embodiment, the line width of each wiring pattern is fixed at the minimum patterning dimension by photolithography, and the area ratio of Al having a small resistivity and ITO having a large resistivity as compared with Al is changed. The resistance difference between them is reduced. All of the first wiring pattern 5 is formed of Al, and all of the n-th wiring pattern 5 is formed of I.
It is formed of TO, and the ratio of ITO to Al is gradually increased from the second wiring pattern 5 to the (n−1) th wiring pattern 5. Although an example in which an Al film is formed is described in this example, the present invention is not limited to Al, and may be formed using a metal film having lower resistance than ITO.

[0135]

EXAMPLE Next, with respect to the liquid crystal display device S6 of (Example 7),
More specific examples are shown in FIGS.

FIG. 21A is a plan view of the liquid crystal display device S6 of this example, FIG. 21B is a right side view thereof, and FIG. 21C is an upper side view thereof. FIG. 22 is a sectional view taken along the line JJ in FIG. In these figures, the same portions as those of the liquid crystal display device S are denoted by the same reference numerals.

The dimensions of the glass substrate 1 are 40 × 48 mm,
Dimensions of glass substrate 2 40 × 45.5mm, 1 pixel
This is a liquid crystal display device S6 of 20 × 160.

When the 160 common transparent electrode groups 4 are the 1st to 160th electrodes in order from the top and correspond to the common side terminal group 6, the right side of the common side terminal group 6 is 1
The rightmost terminal is the 80th terminal, counting to the right in order, and the rightmost terminal is 81 on the left side of the common side terminal group 6.
The leftmost terminal is counted to the left in the order of the 160th terminal.

If 360 (120 × 3) segment transparent electrode groups 10 are arranged in order from 1 to 360 from the right and correspond to the segment side terminal group 8, the rightmost terminal of the segment side terminal group 8 is arranged in the first order. And the leftmost terminal is the 360th one.

Here, the longest wiring in the wiring group of the wiring pattern 5 which is a wiring pattern from the common transparent electrode group 4 is the first wiring, and is gradually shortened.
The book becomes the shortest. Each wiring width of the wiring pattern 5 is uniformly set to 30 μm. The first wiring pattern 5 is entirely formed of an Al layer, the 160th wiring pattern 5 is entirely formed of an ITO layer, and the second wiring patterns 5 to 15 are formed.
Up to the ninth wiring pattern 5, the ratio of the area of the ITO layer to the area of the Al layer is gradually increased.

Further, the structure will be described in detail with reference to FIG. On the glass substrate 1, an Al film wiring pattern 5, I
A segment transparent electrode group 10 made of TO is formed, and an alignment film 23 made of polyimide is formed thereon.

On the glass substrate 2, a color filter 46 made of each of red R, green G, and blue B resist resins is formed, and an overcoat made of an insulator such as a synthetic resin or silica is coated thereon. Further, a common transparent electrode group 4 made of ITO is formed thereon. Further, an alignment film 24 made of a polyimide resin is formed.

Each side between the glass substrates 1 and 2 is surrounded by a resin seal 7 containing conductive particles 14, and a liquid crystal 12 is injected therein. Further, spacers 45 for keeping the gap between the substrates constant are dispersed between the substrates. The thickness of each ITO and the thickness of Al were both 20
00 °.

In the liquid crystal display device having such a structure,
Part or all of the wiring pattern on the glass substrate is ITO
By forming a metal film having a lower resistance, for example, an Al layer as compared with the above, the wiring resistance from the common side terminal group to the common transparent electrode group can be reduced.

By changing the area ratio between the Al layer and the ITO layer in each of the plurality of wiring patterns, the resistance difference between the plurality of wiring patterns can be reduced.

The inventor of the present invention has found that in 160 wiring patterns 5, when all are ITO and when all are Al,
In three types of configurations in which the area ratio between l and ITO was adjusted, the maximum resistance value (MAX.) of the first line and the minimum resistance value (MIN.) of the 160th line were obtained, and the display unevenness was evaluated. The results as shown in Table 2 were obtained.

The sheet resistance is ITO: 10Ω / □
(Film thickness 2000 Å), Al: 0.4 Ω / □ (film thickness 20
00Å).

[0148]

[Table 2]

As is clear from this table, display irregularity could be eliminated by adopting the configuration in which the resistance was adjusted as in this example.

The specific structure of the liquid crystal display devices S, S1 to S6
The case where the liquid crystal display devices S and S1 to S6 are transflective liquid crystal display devices will be described with reference to FIG.

A phase difference plate 59 made of polycarbonate or the like and an iodine type polarizing plate 60 are sequentially stacked on the outer surface of the transparent substrate 50, and a phase difference plate 62 made of polycarbonate or the like and an iodine type polarization plate are formed on the outer surface of the transparent substrate 61. The plates 63 are sequentially stacked. These are attached using an adhesive made of an acrylic material.

Further, a backlight 64 is provided on the polarizing plate 63. In the backlight 64, a light source 66 such as a cold cathode tube or an LED is disposed on an end face of the light guide plate 65, and the light emitted from the light source 66 is introduced into the light guide plate 65, and the light guide plate 65 emits light to the liquid crystal panel.

In a liquid crystal panel, a signal electrode 67 and an alignment film (not shown) made of a polyimide resin rubbed in a certain direction are sequentially formed on a transparent substrate 58 such as a glass substrate. Note that an insulating layer made of SiO ₂ or the like may be interposed between the signal electrode 67 and the alignment film.

A semi-transmissive film 68 is formed on the inner surface of a transparent substrate 61 such as a glass substrate, and a color filter 69 is provided on the semi-transmissive film 68. Further color filters 6
9, a black matrix which is a light-shielding film formed of a thin film made of a metal such as aluminum or chromium or a photosensitive resist may be formed.

Then, the SiO 2 is formed on the color filter 69.
₂ , an overcoat layer 70 made of a resin, a scan electrode 71 on the overcoat layer 70, and an alignment film (not shown) made of a polyimide resin rubbed in a certain direction.
Are sequentially formed. The scanning electrode 71 is orthogonal to the signal electrode 35. Note that an insulating layer made of SiO ₂ or the like may be provided between the scanning electrode 71 and the alignment film.

The semi-transmissive film 68 has both light transmissive and light reflective properties, and prevents a phase difference from occurring when sandwiched between two polarizing plates. Further, the semi-transmissive film 68 may be specular or scattering.
In order to produce the semi-transmissive film 68 having a scattering property, it is sufficient to form a semi-transmissive film on the irregular shape by using a resin.

The color filter 69 is of a pigment dispersion type,
That is, a photosensitive resist prepared in advance with a pigment (red, green, blue, or the like) is applied on a substrate and formed by photolithography.

Each of the transparent substrates 58 and 61 thus formed is
Are bonded by a sealing material 73 via a liquid crystal layer 72 made of, for example, a chiral nematic liquid crystal twisted at an angle of 200 to 270 °. Furthermore, both transparent substrates 2
A large number of spacers 74 are arranged between 6 and 29 to make the thickness of the liquid crystal layer 72 constant.

In the liquid crystal display devices S and S1 to S6 each having the semi-transmissive film 68 arranged as described above, when used as a reflection type (reflection mode), an external light source such as sunlight or a fluorescent lamp is used. Light emitted by the illumination is applied to a polarizing plate 60 and a retardation plate 59.
And the liquid crystal panel sequentially pass through, the light incident on the inside of the liquid crystal panel passes through the color filter 69, reaches the semi-transmissive film 68, is reflected by the semi-transmissive film 68, and passes through the liquid crystal panel. The light passes through the phase difference plate 59 and the polarizing plate 60 and is emitted.

On the other hand, when the liquid crystal display devices S and S1 to S6 are in the transmission mode, the irradiation light of the backlight 64 sequentially passes through the polarizing plate 63, the retardation plate 62, and the transparent substrate 61 of the liquid crystal panel. Through the semi-transmissive film 68, through the color filter 69, and through the liquid crystal panel,
Light is emitted through the phase difference plate 59 and the polarizing plate 60.

Further, by forming the semi-transmissive film 68 on the transparent substrate 61, in the reflection mode, by increasing the reflectance in particular, a brighter display can be obtained. In the transmission mode, a high contrast can be obtained. The reflection mode and the transmission mode can be enhanced to the extent that both functions of the reflection mode and the transmission mode can be satisfied.The panel used in the reflection mode can be used in the transmission mode under the same conditions. In each case, stable and vivid color display was achieved.

The semi-transmissive film 6 is formed on the inner surface of the transparent substrate 61.
8, the transparent substrate 6 can be used even in the reflection mode.
1, whereby the phenomenon that the display appears double due to the transparent substrate 61 does not occur. Further, since the incident light and the reflected light pass through the same pixel, a decrease in brightness and color purity is prevented.

Such a semi-transmissive film 68 is made of a metal thin film of, for example, aluminum, chromium, SUS, aluminum alloy, silver alloy or the like. However, as the film thickness increases, the light transmittance decreases and the light reflectivity decreases. growing. The thickness of such a metal thin film has a different light absorption coefficient depending on the type of metal, and is also determined by which of the applications, the reflection mode and the transmission mode, requires improved performance. , Usually 50 to 500 °, preferably 100 to 400 °. Thereby, characteristics as a transflective liquid crystal display device having a reflectivity of 30 to 70% and a transmittance of 5 to 50% can be obtained.

For example, when the semi-transmissive film 68 is formed of an aluminum metal thin film having a thickness of 250.degree.
5% and the transmittance is 15%.

In addition, the liquid crystal display devices S, S1 to
If the semi-transmissive film 68 is specular on S6, a light-scattering plate between the transparent substrate 58 of the liquid crystal panel and the retardation plate 59 may be further formed. This light-scattering plate-like material is, for example, IDS (Interna
l Diffusing Sheet) is a light scattering film that contains beads and the like in a resin. In addition, light scattering irregularities may be provided on the surface of the flat plate.

By providing such a light scattering film between the liquid crystal panel and the phase difference plate 59, when used in the reflection mode, the light reflected by the semi-transmissive film 68 is positively reflected by the light scattering film. The light is also scattered in directions other than the reflection direction, thereby increasing the viewing angle of the image display and widening the recognition area of the image display.

Note that the liquid crystal display devices S, S1 to
In S6, a semi-transmissive film is provided, thereby forming a transflective liquid crystal display device. Instead, a reflective film made of, for example, aluminum metal, silver metal, aluminum alloy, silver alloy, or the like is provided. Reflective liquid crystal display device.

Portable Terminal A portable telephone 79 equipped with the liquid crystal display devices S and S1 to S6 will be described with reference to FIG. According to the mobile phone 79, the liquid crystal display devices S, S1 to S6 are provided in a small housing 75. An antenna 76 for transmission / reception is provided on an upper portion of the housing 75, and a receiver 77 and a microphone 78 are provided on the surface.
Are formed.

A portable terminal 81 provided with the liquid crystal display devices S and S1 to S6 will be described with reference to FIG. The mobile terminal 81 is shown as various information terminals other than the mobile phone 79. For example, a clock, a calculator, a game machine, a pedometer (registered trademark), a GPS, a POS, a handy terminal, an industrial instrument, and the like are not limited thereto. Also in the portable terminal 81, the liquid crystal display devices S and S1 to S6 are arranged in a small casing 80.

Thus, the mobile phone 79 and the mobile terminal 8
In No. 1, further miniaturization could be achieved by using the miniaturized liquid crystal display devices S and S1 to S6.

The present invention is not limited to the above embodiment, and various changes and improvements may be made without departing from the scope of the present invention. For example, in the above embodiment, the description is made with the STN type simple matrix type color liquid crystal display device. However, in addition, the bistable type simple matrix type liquid crystal display device and the monochrome type STN type simple matrix liquid crystal display device are used. The same operation and effect can be obtained even if the device is a TN type simple matrix type liquid crystal display device.

Although the portable terminal is exemplified as the device provided with the liquid crystal display device of the present invention, the present invention is also applicable to various devices using the liquid crystal display device as a display device. For example, it may be used as a display board of various display devices such as a sewing machine, a stereo, a musical instrument, a video, an ATM, a copier and a facsimile, a station, a restaurant, and a display panel in a factory.

[0173]

As described above, in the liquid crystal display device of the present invention, the segment side substrate formed by sequentially laminating the segment transparent electrode group and the alignment film, and the common transparent electrode group and the alignment film are sequentially laminated. A liquid crystal layer is provided inside a seal member provided in a rectangular shape so that both substrates are opposed to each other so that both transparent electrodes are orthogonal to each other, and a rectangular display member is provided so as to bond both substrates. And the segment transparent electrode group formed on the segment-side substrate extends through one side of the seal member to form a connection terminal for the segment, and is juxtaposed along one side of the seal member. A wiring pattern in which the common connection terminal extends through one side of the seal member is formed between the other side of the seal member and the display section, and further between the other side of the seal member and the display section, or Shi A conductive connecting portion for supplying electricity between the segment side substrate and the common side substrate within the other side portion of the wiring member, and electrically connecting the wiring pattern to the common transparent electrode group through the conductive connecting portion. Thus, downsizing was achieved by reducing the size, thereby providing a smaller liquid crystal display device.

Further, according to the present invention, the gap between the substrates is made uniform so that display unevenness does not occur, and furthermore, the arrangement area of the Al layer and the ITO layer in the wiring pattern is adjusted. A high-performance and high-quality liquid crystal display device could be provided.

In addition, according to the present invention, a high-performance display device with further miniaturization can be provided.

[Brief description of the drawings]

FIG. 1 is a liquid crystal display device S of the present invention, in which A is a plan view, B is a right side view, and C is an upper side view.

FIG. 2 is a sectional view taken along the line ee in FIG. 1;

FIG. 3 is a conventional liquid crystal display device P, in which A is a plan view, B is a right side view, and C is an upper side view.

FIG. 4 is a sectional view taken along the line aa of FIG. 3;

FIG. 5 is a conventional liquid crystal display device P1, in which A is a plan view, B is a right side view, and C is an upper side view.

FIG. 6 is an enlarged view of a main part B shown in FIG.

FIG. 7 is a sectional view taken along the line cc of FIG. 6;

FIG. 8 is a perspective view of a conductive rubber.

FIG. 9 is a bottom side view of the liquid crystal display device P1 shown in FIG. 5A.

FIG. 10 is a sectional view taken along the section line dd in FIG. 6;

FIG. 11 is a liquid crystal display device S1 of the present invention, wherein A is a plan view, B is a right side view, and C is an upper side view.

FIG. 12 is a cross-sectional view taken along the line ff of FIG. 11;

FIG. 13 is a liquid crystal display device S2 of the present invention, wherein A is a plan view, B is a right side view, and C is an upper side view.

FIG. 14 is a liquid crystal display device S3 of the present invention, wherein A is a plan view, B is a right side view, and C is an upper side view.

FIG. 15 is a liquid crystal display device S4 of the present invention, wherein A is a plan view, B is a right side view, and C is an upper side view.

FIG. 16 is a liquid crystal display device S5 of the present invention, wherein A is a plan view, B is a right side view, and C is an upper side view.

FIG. 17 is a sectional view taken along the line gg of FIG. 16;

FIG. 18 is a cross-sectional view taken along the line g′-g ′ of FIG. 16;

FIG. 19 is a cross-sectional view taken along the line g "-g" of FIG. 16;

FIG. 20 is a liquid crystal display device S6 of the present invention, in which A is a plan view, B is a right side view, and C is an upper side view.

FIG. 21 is a specific example of the liquid crystal display device S6 of the present invention,
A is a plan view, B is a right side view, and C is an upper side view.

FIG. 22 is a cross-sectional view taken along the line JJ of FIG. 21;

FIG. 23 is a transflective liquid crystal display device S, S1 to S of the present invention.
6 is an enlarged sectional view of a main part of FIG.

FIG. 24 is a front view of a mobile phone.

FIG. 25 is a front view of the portable terminal.

FIG. 26 is a bottom side view of the liquid crystal display device S shown in FIG. 1A.

[Explanation of symbols]

S, S1 to S6: liquid crystal display device 1, 2: glass substrate 3: display unit 4: transparent electrode group for common 5, 9, 20, 47: wiring pattern 6: Common side terminal group 7: Seal resin 8: Segment side terminal group 10, 48 ... Transparent electrode group for segment 14 ... Conductive particles 21, 32, 33, 36 to 39, 41, 42, 54 , 5
5 spacers 22, 31, 34, 35, 43, 44, 49 to 52, 5
6, 57: Conducting portion between substrates 30: Conductor

Claims (2)

[Claims] 1. A transparent substrate comprising: a segment-side substrate formed by sequentially laminating a segment transparent electrode group and an alignment film; and a common-side substrate formed by sequentially laminating a common transparent electrode group and an alignment film. A liquid crystal display device comprising a rectangular display portion provided so as to face each other so as to be orthogonal to each other, and further filling a liquid crystal layer inside a sealing member provided in a rectangular shape so as to bond both substrates, The segment transparent electrode group formed on the side substrate extends through one side of the seal member to form a connection terminal for the segment, and the common connection terminals arranged side by side along the one side of the seal member are connected to one side of the seal member. A wiring pattern extending through the portion is formed between the other side of the seal member and the display portion, and a segment is formed between the other side of the seal member and the display portion, or within the other side portion of the seal member. Side The conductive connection portion which allowed to energization at between the substrate plate and the common side provided, a liquid crystal display device was allowed energized connecting the wiring pattern and the common transparent electrode group through the electrically conductive connection. 2. A portable terminal or display device provided with the liquid crystal display device according to claim 1.