CN103293749A - Color film substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen - Google Patents
Color film substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen Download PDFInfo
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- CN103293749A CN103293749A CN2012103649734A CN201210364973A CN103293749A CN 103293749 A CN103293749 A CN 103293749A CN 2012103649734 A CN2012103649734 A CN 2012103649734A CN 201210364973 A CN201210364973 A CN 201210364973A CN 103293749 A CN103293749 A CN 103293749A
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
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- G—PHYSICS
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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- Human Computer Interaction (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a color film substrate of an embedded liquid crystal touch screen and the embedded liquid crystal touch screen. The color film substrate of the embedded liquid crystal touch screen comprises a black matrix and a touch layer laminated with the black matrix, wherein the resistivity of the black matrix is greater than or equal to 106Omega cm. The resistivity of a black matrix of the color film substrate of the embedded touch liquid crystal display screen disclosed by the invention is more than or equal to 106And omega cm, the conductivity of the black matrix can be greatly reduced by adopting the black matrix with the resistivity, so that the conductive effect of the black matrix on the electrode of the electrode layer is weakened, the interference generated when signals are transmitted in the electrode layer is reduced, and the signal-to-noise ratio of the signals when the signals are transmitted in the electrode layer is improved.
Description
Technical field
The present invention relates to touch-control and show the field, particularly relate to a kind of color membrane substrates and embedded liquid crystal touch control screen of embedded liquid crystal touch control screen.
Background technology
Since the resistive touch screen that occurred in 1974 in the world the earliest, touch technology is through development by leaps and bounds, and industry has produced such as polytype products such as condenser type, resistance-type, infrared type and sound wave types at present.Wherein capacitive touch screen becomes currently marketed main product owing to have accurately sensitive, advantages such as touch feeling is good, long service life and support multi-point touch of location.Capacitive touch screen is divided into self-capacitance formula and mutual capacitance type.Owing to can realize multi-point touch, the mutual capacitance type touch-screen has become main flow and the developing tendency in future on the capacitive touch screen market.
What the mutual capacitance type touch-screen overwhelming majority adopted at present is the structure of external hanging type, is about to touch panel and fits in the display panel outside.But the structure of this external hanging type increases thickness and the weight of whole display inevitably, causes the decline of transmittance, does not meet the requirement of the lightening development trend of display.
Therefore industry has proposed embedded (in-cell) formula mutual capacitance touch screen, is about to the mutual capacitance touch screen and is integrated in display panel inside, so just can reach the high and lightening double effects of product of transmittance.And present best integration mode is no more than being integrated in display panels inside with the mutual capacitance touch screen.
But there are many technical matterss in the embedded mutual capacitance touch screen that the mutual capacitance touch screen is integrated in display panels inside, for example after touch screen is integrated in the color membrane substrates of display panels, owing to be subjected to the influence of display panels internal components, touching signals can weaken, and the signal to noise ratio (S/N ratio) of the touching signals problem that can reduce.
Summary of the invention
For solving in the prior art, when touch screen was integrated in the color membrane substrates of display panels, touching signals can weaken, and the signal to noise ratio (S/N ratio) of the touching signals problem that can reduce, the invention provides a kind of color membrane substrates of embedded touch liquid crystal display, comprising: black matrix; The electrode layer direct stacked with described black matrix; The resistivity of described black matrix is greater than or equal to 10
6Ω cm.
Optionally, described black matrix comprises the resin material that contains the titanium oxynitrides colorant.
Optionally, described black matrix comprises the resin material that contains the carbon black coloring agent.
Optionally, described electrode layer directly is laminated in described black matrix below.
Optionally, it is characterized in that described electrode layer comprises drive electrode and the induction electrode of mutually insulated.
Optionally, described drive electrode and/or described induction electrode directly are laminated in described black matrix below.
Optionally, described drive electrode and/or described induction electrode are made by transparent metal oxide.In addition, for addressing the above problem, the present invention also provides a kind of embedded liquid crystal touch control screen, it is characterized in that, comprising: aforesaid color membrane substrates; The array base palte that is oppositely arranged with described color membrane substrates; Be arranged at the liquid crystal layer between described color membrane substrates and the described array base palte.
Optionally, described color membrane substrates also comprises one deck flatness layer.
Optionally, described flatness layer is organic film.
Compared with prior art, the present invention has the following advantages:
The color membrane substrates of embedded touch liquid crystal display disclosed in this invention, the resistivity of the black matrix that it comprises is greater than or equal to 10
6Ω cm, this resistivity is existing black more than 10 times of resistance matrix rate commonly used, the black matrix that employing has this resistivity can significantly reduce the conductance of black matrix, thereby weaken black matrix to the electric action of the electrode generation of electrode layer, the interference that produces when reducing signal and in electrode layer, transmitting, the signal to noise ratio (S/N ratio) when improving signal and in electrode layer, transmitting.
Embedded touch liquid crystal display disclosed in this invention adopts above-mentioned color membrane substrates, thereby can prevent that whole device from producing assorted letter and disturbing, and has improved signal to noise ratio (S/N ratio) and the touch-control sensitivity of device, and the Device Testing ability is strengthened.
Description of drawings
Fig. 1 is the touch control layer synoptic diagram of common mutual capacitance touch screen;
Fig. 2 is the equivalent circuit diagram of touch-control electrode pattern shown in Figure 1;
Fig. 3 is the synoptic diagram of the touch-control structure of the embodiment of the invention;
Fig. 4 is the equivalent circuit diagram of touch-control structure shown in Figure 3;
Fig. 5 is that the color membrane substrates with touch-control structure shown in Figure 3 cuts the sectional view that obtains along A-A line among Fig. 3;
Fig. 6 is that the color membrane substrates with touch-control structure shown in Figure 3 cuts the sectional view that obtains along B-B line among Fig. 3.
Embodiment
Please refer to Fig. 1, be the synoptic diagram of common mutual capacitance touch screen touch control layer.Common mutual capacitance touch screen touch control layer comprises that a plurality of drive electrodes 11 form drive wire (two the adjacent drive electrodes 11 that demonstrate among Fig. 1 wherein are representative) along first axial array; A plurality of induction electrodes 12 form the line of induction (demonstrate two wherein adjacent induction electrodes 12 among Fig. 1 and be representative) along second axial array.Though Fig. 1 can't give whole demonstrations, those skilled in the art as can be known, whole touch control layer comprises many drive wires that are arranged parallel to each other, many lines of induction that are arranged parallel to each other.
Can also see that from Fig. 1 adjacent two drive electrodes 11 are joined together to form described drive wire by the narrow thin part between them, and are joined together to form the described line of induction by conducting bridge 121 between adjacent two induction electrodes 12.Though do not illustrate among Fig. 1, there is transparent insulating layer 2 (can with reference to figure 5 and Fig. 6) between conducting bridge 121 and the drive wire, make that mutually insulated is isolated between them.Conducting bridge 121 connects adjacent two induction electrodes 12 by the through hole 21 on the transparent insulating layer 2.
For external hanging type mutual capacitance touch screen, shown touch control layer is formed on the transparent insulation substrate usually among Fig. 1, and this transparent insulation substrate can be glass substrate, also can be plastics (for example PET) substrates.
Please in conjunction with reference to figure 2, be the equivalent circuit diagram of touch-control electrode pattern shown in Figure 1.The Ed representative is drive electrode among Fig. 2, what Es represented is induction electrode, Rd represents the equivalent resistance of drive electrode, Rs represents the equivalent resistance of induction electrode, be formed with mutual capacitance Cm between drive electrode and induction electrode, the mutual capacitance type touch control screen namely is to utilize this mutual capacitance Cm to realize the touch control detection function.When the touch-control action takes place between drive electrode and the induction electrode when, can cause that mutual capacitance Cm changes, produce corresponding touching signals and output to touch-control circuit processed, the touch-control control circuit judges whether to take place touch action according to the touching signals that receives.In addition, also there is coupling capacitance (also claiming stray capacitance) Cd over the ground in drive electrode, and also there is coupling capacitance (also claiming stray capacitance) Cs over the ground in induction electrode.
Background technology is mentioned, and external hanging type mutual capacitance touch screen is owing to come with some shortcomings and shortcoming, and industry proposes the mutual capacitance touch screen is integrated in embedded (in-cell) mutual capacitance touch liquid crystal screen of display panels inside.This just requires touch control layer is produced on liquid crystal cell inside.
Please in conjunction with reference to figure 3, be the synoptic diagram of the touch-control structure of the embodiment of the invention, after also can regarding touch control layer among Fig. 1 as and being made in the transparent insulation substrate of color membrane substrates, the synoptic diagram of the touch-control structure that this touch control layer and black matrix form.As can see from Figure 3, black matrix 3 is covered in touch control layer (because black matrix 3 is the levels relation with touch control layer, also can regards touch control layer as and be covered in black matrix 3) as shown in Figure 1.And black matrix 3 is latticed, thereby same mesh lines of black matrix 3 is covered on drive electrode 11 and the induction electrode 12 simultaneously.
After the touch control layer among Fig. 1 was made in the transparent insulation substrate of color membrane substrates, the noise of whole contactor control device strengthened many, and touching signals seriously weakens.For solving this situation, the inventor is through repeatedly experiment discovery, and the problems referred to above are because above-mentioned " same mesh lines of black matrix 3 is covered on drive electrode 11 and/or the induction electrode 12 simultaneously " causes.
Concrete, please in conjunction with reference to figure 4, be the equivalent circuit diagram of touch-control structure shown in Figure 3.Usually, black matrix 3 is to be made by the resin of common carbonaceous powder, and its resistivity is 10
5About Ω cm.And as can be seen from Figure 3, the mesh lines that forms black matrix 3 interconnects, be covered in simultaneously on drive electrode 11 and the induction electrode 12, thereby when the resistivity of the mesh lines that make black matrix 3 only be 10
5During the Ω cm left and right sides, black matrix 3 can make drive electrode 11 and induction electrode 12 mutual conduction, and namely the insulating effect between drive electrode 11 and the induction electrode 12 is destroyed.The equivalent circuit diagram of whole touch-control structure just as shown in Figure 4, circuit diagram than shown in Figure 2 demonstrates among Fig. 4, can become electrical connection between drive electrode Ed and induction electrode Es, and the resistance between drive electrode Ed and the induction electrode Es is Rds, and this resistance is the resistance of black matrix 3.
Please continue with reference to figure 4, if the black matrix of the color membrane substrates that adopts the resin material of common carbonaceous powder to make to have the embedded touch structure, then can form faint electrical connection between drive electrode Ed and the induction electrode Es, though the effect of this electrical connection is comparatively faint, but it is enough to cause touching signals to produce assorted letter in transmission course, thereby reduced the signal to noise ratio (S/N ratio) of touching signals, and then reduced the touch-control sensitivity of device.And the inventor discovers, avoid this faint electrical connection to produce the effect that assorted letter disturbs, and the resistivity of black matrix should improve 10 times under existing situation, and namely requiring with resistivity is 10
6The material of Ω cm is made black matrix.
For this reason, the inventor proposes a kind of color membrane substrates of embedded touch liquid crystal display, comprises black matrix and the touch control layer stacked with described black matrix.The resistivity of described black matrix is greater than or equal to 10
6Ω cm.Improved the resistivity of black matrix, just can weaken black matrix to the electrical connection effect of drive electrode Ed and induction electrode Es, thereby prevent from producing because drive electrode Ed and induction electrode Es have the electrical connection effect situation of assorted letter interference, and then make the touch-control sensitivity of whole device improve the detectability grow.
Below in conjunction with accompanying drawing specific embodiments of the invention are illustrated.
Please in conjunction with reference to figure 3, Fig. 5 and Fig. 6.The front is mentioned, and Fig. 3 is made in the synoptic diagram of the touch-control structure that forms with black matrix behind the transparent insulation substrate of color membrane substrates for the touch control layer among Fig. 1, and Fig. 5 to be the color membrane substrates with touch-control structure shown in Figure 3 cut the sectional view that obtains along A-A line among Fig. 3.Fig. 6 is that the color membrane substrates with touch-control structure shown in Figure 3 cuts the sectional view that obtains along B-B line among Fig. 3.
Fig. 5 is for cutting the sectional view that obtains along the A-A line among Fig. 3, as can be seen from Figure 3, the A-A line just overlaps with black matrix 3, and the A-A line just with the coincident of conducting bridge 121, thereby as can see from Figure 5, transparency carrier 4 belows are the black matrix 3 of whole layer.And black matrix 3 belows include the electrode layer of drive electrode 11 and induction electrode 12 formations, can obviously see, black matrix 3 is directly stacked with the described electrode layer that includes drive electrode 11 and induction electrode 12.As can be seen from Figure 5, the mesh lines of the black matrix 3 that cuts along the A-A line is simultaneously directly stacked with drive electrode 11 and induction electrode 12, thereby, if the resistivity of black matrix 3 is low, just may electric action be arranged to drive electrode 11 and induction electrode 12, thereby will produce the signal interference effect.Thereby embodiment of the invention proposition, the resistivity of black matrix 3 improves at least 10 times than the resistivity of existing black matrix generally, reaches 10
6More than the Ω cm.
Need to prove that among the embodiment shown in Figure 5, black 3 whiles of matrix are directly stacked with drive electrode 11 and induction electrode 12, electrode layer is single layer structure.But in other embodiments of the invention, electrode layer also can be double-decker, and wherein drive electrode 11 and induction electrode 12 are divided into two-layerly, and at this moment, black matrix 3 is only directly stacked with wherein one deck of drive electrode 11 and induction electrode 12.For example when black matrix 3 directly is layered in drive electrode 11 tops, though the electric action of black matrix 3 is useful for the drive electrode 11 on same the drive wire, but, for the drive electrode 11 on same drive wire not, the electric action of black matrix 3 still can cause signal to produce assorted letter when electrode layer transmits, thereby in this embodiment, the resistivity of black matrix 3 still needs to reach 10
6More than the Ω cm.
The front is mentioned, and touch control layer also comprises as shown in Figure 5 conducting bridge 121 and transparent insulating layer 2 except comprising electrode layer.As can see from Figure 5, include through hole 21 (also being found in Fig. 3) on the transparent insulating layer 2, and conducting bridge 121 strides across transparent insulating layer 2 and be electrically connected the described line of induction of two adjacent induction electrodes, 12 formation by the through hole 21 on the transparent insulating layer 2.
Need to prove that in the present embodiment, conducting bridge 121 can be made up of at least one plain conductor, and conducting bridge 121 is blocked by black matrix 3.But in other example, described conducting bridge 121 can be at least one transparent metal oxide lead, and like this, no matter how conducting bridge 121 arranges, and can not influence the visual effect of display device.
Please continue with reference to figure 5; in the present embodiment; except above described structure; below touch control layer, also include a transparent flatness layer 5; this transparent flatness layer 5 is for the protection of color membrane substrates; make that the flatness of color membrane substrates is better, prevent that simultaneously the ion pair liquid crystal layer on the color membrane substrates from polluting, adopt transparent flatness layer 5 can improve the transparency of whole color membrane substrates.
Fig. 6 is for cutting the sectional view that obtains along the B-B line among Fig. 3, and as can be seen from Figure 3, what the B-B line passed is drive electrode 11, can see still that in Fig. 6 drive electrode 11 and black matrix 3 are directly stacked.The B-B line passes the transparent region that black matrix 3 limits, thereby can see in Fig. 6, be to be deceived transparent region between the matrix 3 by the black matrix 3 of crosscut and adjacent twice below the transparency carrier 4, and the driven electrode of transparent region 11 is occupied.It is transparent insulating layer 2 below drive electrode 11, and below transparent insulating layer 2, also comprise coloured resistance unit 6 (look resistance unit 6 comprises the trichromatic three kinds of looks resistance of red, green and blue unit), and each look resistance unit 6 just be positioned at transparent region under, shelter from described transparent region.The color membrane substrates that has also shown present embodiment among Fig. 6 includes transparent flatness layer 5, and transparent flatness layer 5 is positioned at look resistance 6 belows, unit, protective coloration resistance unit 6.
Need to prove, in the above-described embodiments, the stepped construction of touch control layer as shown in Figure 5, the electrode layer that is made of drive electrode 11 and induction electrode 12 directly is laminated in the below of black matrix 3, transparent insulating layer 2 is positioned at above-mentioned electrode layer below, and conducting bridge 121 is positioned at transparent insulating layer 2 belows.This is a kind of preferred embodiment, because such stepped construction can make electrode layer near touch control operation (touch control operation occurs in transparency carrier 4 tops usually), thereby can make the touch-control sensitivity of device higher.In the present embodiment, described touch control layer can further include other layer of metal layer (not shown) except above-described stepped construction.It is identical with the shape of deceiving matrix 3 latticed that described metal level is, and directly be arranged at below the black matrix 3 (that is be arranged between the described electrode layer of being formed by drive electrode 11 and induction electrode 12 and black matrix 3, between drive electrode 11 and black matrix 3 among Fig. 6).But, this is latticed metal level is not a continuous whole layer, but a fritter one fritter is formed on an induction electrode or the drive electrode isolatedly, and the metal grill on the metal grill on each induction electrode or the drive electrode and other drive electrode or the induction electrode is mutually insulated.Simultaneously, black matrix 3 shelters from this and is latticed metal level.The setting of this metal level can be so that drive electrode and induction electrode self-resistance reduce, and then make that touching signals decay when drive electrode and induction electrode transmission is less, thereby make touching signals can keep higher intensity in transmission course.
Below respectively scheme among each shown embodiment, owing to the area of each drive electrode in the described electrode layer and induction electrode is bigger, thereby electrode can occupy the viewing area, so, the material of making described electrode layer is preferred, selects the transparent metal oxide material for use, for example indium tin oxide (ITO).In addition, in above each figure, drive electrode and induction electrode all assume diamond in shape, and still, among other embodiment of the present invention, drive electrode also can be other shapes such as triangle, hexagon, cruciform and circle.
The color membrane substrates of the above-mentioned disclosed embedded touch liquid crystal display of the present invention, the resistivity of the black matrix that it comprises is greater than or equal to 10
6Ω cm, this resistivity is existing black more than 10 times of resistance matrix rate commonly used, the black matrix that utilization has this resistivity can weaken black matrix to the electrical connection effect of drive electrode and induction electrode, significantly reduce drive electrode and induction electrode generation electrical connection effect that the color membrane substrates of embedded touch liquid crystal display causes because of the existence of black matrix, avoid producing between drive electrode and the induction electrode signal and disturb.
The embodiment of the invention also provides a kind of embedded liquid crystal touch control screen, and the array base palte that includes color membrane substrates recited above and be oppositely arranged with this color membrane substrates is provided with liquid crystal layer between described color membrane substrates and described array base palte.Because color membrane substrates recited above is integrated with touch controllable function, thereby this embedded liquid crystal touch control screen just can possess demonstration and touch-control dual-use function simultaneously.In addition, also comprise the layer of transparent flatness layer on the described color membrane substrates of the embodiment of the invention, this transparent flatness layer is positioned at the below of color membrane substrates, increases each structure that transparent flatness layer can be protected color membrane substrates, prevents that foreign matter from polluting color membrane substrates.Further preferred, transparent flatness layer described in the present embodiment is organic film, organic film transparency height, and corrosion-resistant, the ability that anti-ion sees through is strong.
Embedded touch liquid crystal display disclosed in this invention has used above-mentioned color membrane substrates, thereby prevents that whole device from producing assorted letter and disturbing, and has improved signal to noise ratio (S/N ratio) and the touch-control sensitivity of device, and the Device Testing ability is strengthened.
Various piece adopts the mode of going forward one by one to describe in this instructions, and what each part stressed is and the difference of other parts that identical similar part is mutually referring to getting final product between the various piece.
Though the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (10)
1. the color membrane substrates of an embedded liquid crystal touch control screen is characterized in that, comprising:
Black matrix;
The electrode layer direct stacked with described black matrix;
The resistivity of described black matrix is greater than or equal to 10
6Ω cm.
2. the color membrane substrates of embedded liquid crystal touch control screen as claimed in claim 1 is characterized in that described black matrix comprises the resin material that contains the titanium oxynitrides colorant.
3. the color membrane substrates of embedded liquid crystal touch control screen as claimed in claim 1 is characterized in that described black matrix comprises the resin material that contains the carbon black coloring agent.
4. the color membrane substrates of embedded liquid crystal touch control screen as claimed in claim 1 is characterized in that, described electrode layer directly is laminated in described black matrix below.
5. as the color membrane substrates of any described embedded liquid crystal touch control screen of claim 1 to 4, it is characterized in that described electrode layer comprises drive electrode and the induction electrode of mutually insulated.
6. the color membrane substrates of embedded liquid crystal touch control screen as claimed in claim 5 is characterized in that, described drive electrode and/or described induction electrode directly are laminated in described black matrix below.
7. the color membrane substrates of embedded liquid crystal touch control screen as claimed in claim 6 is characterized in that described drive electrode and/or described induction electrode are made by transparent metal oxide.
8. an embedded liquid crystal touch control screen is characterized in that, comprising:
As any described color membrane substrates of claim 1 to 7;
The array base palte that is oppositely arranged with described color membrane substrates;
Be arranged at the liquid crystal layer between described color membrane substrates and the described array base palte.
9. embedded liquid crystal touch control screen as claimed in claim 8 is characterized in that described color membrane substrates also comprises one deck flatness layer.
10. embedded liquid crystal touch control screen as claimed in claim 9 is characterized in that described flatness layer is organic film.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103649734A CN103293749A (en) | 2012-09-26 | 2012-09-26 | Color film substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen |
| PCT/CN2012/084671 WO2014048017A1 (en) | 2012-09-26 | 2012-11-15 | Color filter substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103649734A CN103293749A (en) | 2012-09-26 | 2012-09-26 | Color film substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103293749A true CN103293749A (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103649734A Pending CN103293749A (en) | 2012-09-26 | 2012-09-26 | Color film substrate of embedded liquid crystal touch screen and embedded liquid crystal touch screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103293749A (en) |
| WO (1) | WO2014048017A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558942A (en) * | 2013-11-08 | 2014-02-05 | 京东方科技集团股份有限公司 | Touch screen and manufacturing method thereof |
| CN107203299A (en) * | 2017-05-27 | 2017-09-26 | 厦门天马微电子有限公司 | A kind of touch control display apparatus and display device |
| US10061147B2 (en) | 2015-06-30 | 2018-08-28 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch display panel |
| CN111562856A (en) * | 2020-04-17 | 2020-08-21 | Tcl华星光电技术有限公司 | Display panel and display device |
| CN114035712A (en) * | 2021-11-17 | 2022-02-11 | 广东示润科技有限公司 | A thin film capacitive screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359337A (en) * | 1999-05-14 | 2002-07-17 | 3M创新有限公司 | Thermal transfer of a black matrix containing carbon black |
| CN101424817A (en) * | 2008-12-17 | 2009-05-06 | 友达光电股份有限公司 | Method for manufacturing color filtering touch substrate |
| US20100136868A1 (en) * | 2008-12-03 | 2010-06-03 | Yu-Feng Chien | Method of forming a color filter touch sensing substrate |
| US20110032209A1 (en) * | 2009-08-06 | 2011-02-10 | Samsung Mobile Display Co. Ltd. | Display apparatus |
| JP2011227651A (en) * | 2010-04-19 | 2011-11-10 | Optrex Corp | Electrode substrate, touch panel device and display device |
-
2012
- 2012-09-26 CN CN2012103649734A patent/CN103293749A/en active Pending
- 2012-11-15 WO PCT/CN2012/084671 patent/WO2014048017A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359337A (en) * | 1999-05-14 | 2002-07-17 | 3M创新有限公司 | Thermal transfer of a black matrix containing carbon black |
| US20100136868A1 (en) * | 2008-12-03 | 2010-06-03 | Yu-Feng Chien | Method of forming a color filter touch sensing substrate |
| CN101424817A (en) * | 2008-12-17 | 2009-05-06 | 友达光电股份有限公司 | Method for manufacturing color filtering touch substrate |
| US20110032209A1 (en) * | 2009-08-06 | 2011-02-10 | Samsung Mobile Display Co. Ltd. | Display apparatus |
| JP2011227651A (en) * | 2010-04-19 | 2011-11-10 | Optrex Corp | Electrode substrate, touch panel device and display device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558942A (en) * | 2013-11-08 | 2014-02-05 | 京东方科技集团股份有限公司 | Touch screen and manufacturing method thereof |
| CN103558942B (en) * | 2013-11-08 | 2016-03-09 | 京东方科技集团股份有限公司 | Touch-screen and manufacture method thereof |
| US10061147B2 (en) | 2015-06-30 | 2018-08-28 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch display panel |
| US10222643B2 (en) | 2015-06-30 | 2019-03-05 | Shanghai Tianma Micro-electronics Co., Ltd. | Touch display panel |
| CN107203299A (en) * | 2017-05-27 | 2017-09-26 | 厦门天马微电子有限公司 | A kind of touch control display apparatus and display device |
| CN107203299B (en) * | 2017-05-27 | 2020-07-24 | 厦门天马微电子有限公司 | Touch display device and display equipment |
| CN111562856A (en) * | 2020-04-17 | 2020-08-21 | Tcl华星光电技术有限公司 | Display panel and display device |
| CN114035712A (en) * | 2021-11-17 | 2022-02-11 | 广东示润科技有限公司 | A thin film capacitive screen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014048017A1 (en) | 2014-04-03 |
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Application publication date: 20130911 |