CN101989008B - Transflective liquid crystal display - Google Patents
Transflective liquid crystal display Download PDFInfo
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- CN101989008B CN101989008B CN2009101610808A CN200910161080A CN101989008B CN 101989008 B CN101989008 B CN 101989008B CN 2009101610808 A CN2009101610808 A CN 2009101610808A CN 200910161080 A CN200910161080 A CN 200910161080A CN 101989008 B CN101989008 B CN 101989008B
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Abstract
The invention discloses a transflective liquid crystal display comprising an active assembly substrate, a colorful filter substrate and a liquid crystal layer, wherein the active assembly substrate comprises a first transparent substrate, a plurality of switching assemblies, a plurality of transparent pixel electrodes and a plurality of reflected pixel electrodes, and the switching assemblies, the transparent pixel electrodes and the reflected pixel electrodes are formed on the first transparent substrate; and the colorful filter substrate comprises a second transparent substrate, a first transparent conducting layer, a second transparent conducting layer and a dielectric layer, wherein the first transparent conducting layer is positioned between the second transparent substrate and the second transparent conducting layer, the dielectric layer is positioned between the first transparent conducting layer and the second transparent conducting layer, the second transparent conducting layer in each pixel region defines at least one opening, and the opening respectively corresponds to the reflected pixel electrode. By the implementation of the transflective liquid crystal display, the Gamma curves of a penetration region and a reflecting region can be adjusted to better Gamma curves, and the phenomena of color offset and embossing are effectively alleviated.
Description
Technical field
The present invention relates to a kind of semitransparent and half-reflective liquid crystal display, relate in particular to a kind of semitransparent and half-reflective liquid crystal display that can the Gamma curve of penetrating region and echo area be adjusted to preferable Gamma curve.
Background technology
Figure 1A is the synoptic diagram of the part section of existing semitransparent and half-reflective liquid crystal display.Shown in Figure 1A, semitransparent and half-reflective liquid crystal display 90 comprises toward each other a filter sheet base plate 912 and a driving component substrate 914, and folder is established a liquid crystal layer 916 between two substrates.Liquid crystal layer 916 adopts negative dielectric anisotropy (negative dielectric anisotropy) liquid crystal material, makes that liquid crystal molecule is vertical orientation (vertical alignment) when not applying voltage.On the transparency carrier 928 of driving component substrate 914, be formed with changeover module (not shown), transparency electrode 922 and reflecting electrode 923 like thin film transistor (TFT) (TFT) and so on.Be formed with colored filter 930 on the transparency carrier 926 of filter sheet base plate 912 and and be formed with common electrode 924 on the colored filter 930.Colored filter 930 comprises black matrix layer 934 of shading and optical filtering mark district 932.
But 914 of the filter sheet base plate 912 of existing semitransparent and half-reflective liquid crystal display 90 and driving component substrates form single spacing, therefore are not easy the Gamma curve of penetrating region and echo area is adjusted to harmonious Gamma2.2 curve, and cause image quality not good.For addressing the above problem the display that prior art proposes to comprise an organic layer.Figure 1B is the synoptic diagram of the part section of another existing semitransparent and half-reflective liquid crystal display.Semitransparent and half-reflective liquid crystal display 90B is similar in appearance to semitransparent and half-reflective liquid crystal display 90; Different being in semitransparent and half-reflective liquid crystal display 90B further comprises an organic layer 924; Be positioned at 923 of transparency carrier 928 and reflecting electrodes, make 914 of filter sheet base plate 912 and driving component substrates form two kinds of different spacings.Compared to semitransparent and half-reflective liquid crystal display 90; Approach the light path of light 11 its liquid crystal layers 916 of passing through of penetrating region among the semitransparent and half-reflective liquid crystal display 90B in the light path of light 12 its liquid crystal layers 916 of passing through of echo area, so the Gamma curve of the penetrating region of semitransparent and half-reflective liquid crystal display 90B and echo area can be adjusted to the Gamma2.2 curve.
In addition, the existing LCD that adopts the vertical orientation structure has colour cast (color washout) phenomenon when watching with great visual angle, and for example when watching with great visual angle, the colour of skin can be partial to comparatively light blue or brilliant white.In addition, during with finger touches available liquid crystal display, disarrayed because of mesomorphic state and to be produced white or black embossing (being finger print mura) phenomenon.It is longer that the mesomorphic state of disarraying in the general available liquid crystal display is returned to reaction time of original para-electric field direction tilt state, make eye-observation to the embossing phenomenon.
Summary of the invention
Therefore, the purpose of one embodiment of the invention is to provide a kind of semitransparent and half-reflective liquid crystal display, its can slow down when watching with great visual angle the color offset phenomenon discovered.The purpose of one embodiment is to provide a kind of semitransparent and half-reflective liquid crystal display, and it can slow down the embossing phenomenon.The purpose of one embodiment is to provide a kind of semitransparent and half-reflective liquid crystal display, and it can have good display quality; More specifically, the purpose of an embodiment is to provide a kind of semitransparent and half-reflective liquid crystal display, and the Gamma curve of penetrating region and echo area in the pixel is adjusted to preferable Gamma curve.
According to one embodiment of the invention a kind of semitransparent and half-reflective liquid crystal display is provided, it comprises a driving component substrate, a colored filter substrate and liquid crystal layer.Liquid crystal layer is located between colored filter substrate and driving component substrate.One driving component substrate comprises one first transparency carrier; With a plurality of changeover modules and a plurality of reflective pixel electrode that are formed on first transparency carrier.Each changeover module be electrically connected on said transparent pixels electrode one of them and said reflective pixel electrode one of them.Colored filter substrate defines a plurality of pixel regions, each pixel region be suitable for the corresponding said transparent pixels electrode in position one of them and said reflective pixel electrode at least one of them.Colored filter substrate comprises one second transparency carrier, one first transparency conducting layer, one second transparency conducting layer and a dielectric layer; And first transparency conducting layer is positioned at second transparency carrier and the second electrically conducting transparent interlayer; Dielectric layer is positioned at first transparency conducting layer and the second electrically conducting transparent interlayer; And second transparency conducting layer in each pixel region defines at least one opening, and said aperture position corresponds respectively to said reflective pixel electrode.
Semitransparent and half-reflective liquid crystal display according to one embodiment of the invention; Dielectric layer is a chromatic filter layer; A plurality of optical filtering marks district that chromatic filter layer comprises a black matrix layer and defined by black matrix layer, and the corresponding said pixel region of each optical filtering mark zone position one of them.Preferably, first transparency conducting layer is located between second transparency carrier and the chromatic filter layer.
According to the semitransparent and half-reflective liquid crystal display of one embodiment of the invention, dielectric layer is a hyaline layer.Preferably said display further comprises a chromatic filter layer, a plurality of optical filtering marks district that chromatic filter layer comprises a black matrix layer and defined by black matrix layer, and the corresponding said pixel region of each optical filtering mark zone position one of them.Among one embodiment, chromatic filter layer is located between first transparency conducting layer and second transparency carrier.
According to the semitransparent and half-reflective liquid crystal display of one embodiment of the invention, said reflective pixel electrode lays respectively in the zone of the corresponding said opening of first transparency carrier.
According to the semitransparent and half-reflective liquid crystal display of one embodiment of the invention, said reflective pixel electrode lays respectively at first transparency carrier and said transparent pixels electrode.Preferably said transparent pixels electrode covers said reflective pixel electrode respectively.According to the semitransparent and half-reflective liquid crystal display of one embodiment of the invention, first transparency conducting layer in each pixel region defines another opening.
Because in the pixel according to one embodiment of the invention semitransparent and half-reflective liquid crystal display; Be formed with two zones and have two different electric fields; Can make by the control of electric field than the bright echo area of elder generation and become brighter, and then can the Gamma curve of penetrating region and echo area be adjusted to preferable Gamma curve.And also can effectively slow down colour cast (color washout) phenomenon among the embodiment; Maybe can slow down the embossing phenomenon.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:
Figure 1A is the synoptic diagram of the part section of existing semitransparent and half-reflective liquid crystal display.
Figure 1B is the synoptic diagram of the part section of another existing semitransparent and half-reflective liquid crystal display.
Fig. 2 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.
Fig. 3 is according to the floor map that constitutes a dot structure on the driving component substrate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.
Fig. 4 is according to the floor map that constitutes a pixel region on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.
Fig. 5 reaches according to the voltage (Voltage) and penetrance (T%) and reflectivity (R%) curve map of a pixel in the semitransparent and half-reflective liquid crystal display of one embodiment of the invention in positive visual angle for existing.
Fig. 6 A is according to the GTG of a pixel in one embodiment of the invention semitransparent and half-reflective liquid crystal display and penetrance curve map.
Fig. 6 B is according to the GTG of a pixel in one embodiment of the invention semitransparent and half-reflective liquid crystal display and reflectance curve figure.
Fig. 7 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.
Fig. 8 is according to the floor map that constitutes two adjacent pixel regions on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.
Fig. 9 is according to the floor map that constitutes a pixel region on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.
Figure 10 is the floor map according to the filter sheet base plate of one embodiment of the invention LCD.
Figure 11 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.
Drawing reference numeral:
10,10a semitransparent and half-reflective liquid crystal display
12 filter sheet base plates
14 driving component substrates
16 liquid crystal layers
20 pixel regions
21 second transparency carriers
23 chromatic filter layers
241 first transparency conducting layers
242 second transparency conducting layers
243 openings
244 openings
245 dielectric layers
32 black matrix layer
34 optical filtering mark districts
38,381,382,383 zones
40 pixel regions
41 first transparency carriers
42 changeover modules
44 sweep traces
46 data lines
47 reflective pixel electrodes
48 transparent pixels electrodes
712 colored filter substrates
721 non-display areas
722 viewing areas
723 through holes
821,822,823 pixel regions
841,851,861 first openings
842,852,862 second openings
90 semitransparent and half-reflective liquid crystal displays
912 filter sheet base plates
914 driving component substrates
916 liquid crystal layers
922 pixel electrodes
924 common electrodes
926 transparency carriers
928 transparency carriers
930 colored filters
932 optical filtering mark districts
934 black matrix layer
Embodiment
For making the object of the invention, technical scheme and advantage clearer, the embodiment of the invention is explained further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
At this, must note the term of " the A layer is formed on the B layer " in this instructions, be not defined as the mode that the A layer directly pastes contact B laminar surface, for example other lamination of the middle interval still of A layer and B layer also is this term institute covering scope.
Fig. 2 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.As shown in Figure 2, semitransparent and half-reflective liquid crystal display 10 comprises toward each other a filter sheet base plate 12 and a driving component substrate 14, and folder is established a liquid crystal layer 16 between two substrates.Liquid crystal layer 16 adopts negative dielectric anisotropy liquid crystal material, makes that liquid crystal molecule is vertical orientation when not applying voltage.In addition, can add in the liquid crystal layer 16 to help and revolve adulterant (chiral dopant), to quicken the liquid crystal rotation and to reduce misorientation defective (disclination).
Fig. 3 is according to the floor map that constitutes a dot structure on the driving component substrate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.The changeover module of present embodiment can be a n type amorphous silicon film transistor (n-type a-Si TFT) 42; Like Fig. 2 and shown in Figure 3; Form sweep trace (scan line) 44 that multiple tracks is parallel to each other and the data line (data line) 46 that is parallel to each other on first transparency carrier 41 of driving component substrate 14, and two adjacent sweep traces 44 are orthogonal to two adjacent data lines 46 and corral goes out a pixel region 40.At least one reflective pixel electrode 47 and transparent pixels electrode 48 are distributed in this pixel region 40, and thin film transistor (TFT) 42 is electrically connected transparent pixels electrode 48 and is formed at sweep trace 44 and place, data line 46 point of crossing.Transparent pixels electrode 48 can be by tin indium oxide (Indium Tin Oxide; ITO) or indium-zinc oxide (Indium ZincOxide; IZO) nesa coating constitutes.47 of reflective pixel electrodes are between the transparent pixels electrode 48 and first transparency carrier 41, in order to reflect from LCD 10 light from outside.Preferably, transparent pixels electrode 48 covers reflective pixel electrode 47.
Fig. 4 is according to the floor map that constitutes a pixel region on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.Like Fig. 2 and shown in Figure 4; Filter sheet base plate 12 defines a plurality of pixel regions 20; Respective pixel zone, each pixel region 20 position 40 one of them, more specifically one of them and said reflective pixel electrode 47 of the said transparent pixels electrode 48 of the corresponding driving component substrate 14 in each pixel region 20 position at least one of them.Form chromatic filter layer 23 on second transparency carrier 21 of filter sheet base plate 12.A plurality of optical filtering marks district (filter trace) 34 that chromatic filter layer 23 comprises a black matrix layer 32 and defined by black matrix layer 32, and the corresponding said pixel region in each 34 position, optical filtering mark district 20 one of them.Optical filtering mark district 34 includes a zone 38, when filter sheet base plate 12 and driving component substrate 14 are combined into LCD 20, and the thin film transistor (TFT) 42 of the corresponding driving component substrate 14 in regional 38 positions.Each optical filtering mark district for example can be made up of color dye, and the mark district 34 that therefore for example filters can be redness filter mark district, green optical filtering mark district, blue optical filtering mark district.Two 34 in optical filtering mark districts are provided with provides the black matrix layer of interception (black matrix; BM) 32.In the present embodiment, first transparency carrier 41 and second transparency carrier 21 can be a glass substrate, plastic base or plastics mantle.
In detail, the diagrammatic cross-section of the driving component substrate 14 of Fig. 2 is the sectional view that A-A ' the line crosscut along Fig. 3 gets, and the diagrammatic cross-section of the filter sheet base plate 12 of Fig. 2 is the sectional view that B-B ' the line crosscut along Fig. 4 gets.Colored filter substrate 12 defines a plurality of pixel regions 20, the corresponding said pixel electrode in each pixel region 20 position 48 one of them.As shown in Figure 2, colored filter substrate 12 comprises one second transparency carrier 21, one first transparency conducting layer 241, one second transparency conducting layer 242 and and is the chromatic filter layer 23 of dielectric layer.First transparency conducting layer 241 is positioned at 242 of second transparency carrier 21 and second transparency conducting layers; Chromatic filter layer 23 is positioned at 242 of first transparency conducting layer 241 and second transparency conducting layers, and the corresponding pixel region 20 in 34 positions, an optical filtering mark district of chromatic filter layer 23.Preferably, first transparency conducting layer 241 is formed on second transparency carrier 21, and chromatic filter layer 23 is formed on first transparency conducting layer 241, and second transparency conducting layer 242 is formed on the chromatic filter layer 23.
In the present embodiment, be provided with one at first transparency conducting layer 241 and 242 of second transparency conducting layers and be the chromatic filter layer 23 of dielectric layer, so can be formed with electric capacity this two transparency conducting layer 241 and 242.This external second transparency conducting layer 242 further defines at least one opening 243, and opening 243 positions are corresponding to reflective pixel electrode 47.Therefore can be divided into two zones at pixel region 20 and 48 of pixel electrodes: second transparency conducting layer 242 of pixel region 20 is formed with first part of opening 243; And second transparency conducting layer 242 of pixel region 20 does not form second part of opening 243.Because first part and second part distinctly have different electric capacity; Therefore second of first part of pixel region 20 and pixel region 20 part and 48 electric fields that produce out of the ordinary of pixel electrode are different, and can make the different vergence directions of liquid crystal molecule tool of liquid crystal layer 16 in this two zone.And the different vergence directions of liquid crystal molecule tool can form different light transmittances, so two zones can have different light transmittances.Therefore can effectively slow down colour cast (color washout) phenomenon.During in addition with the finger touches LCD, disarrayed because of mesomorphic state and to be produced the embossing phenomenon,, make liquid crystal can return back to previous status, and can slow down the embossing phenomenon because pixel region 20 can form two kinds of different electric fields.
In addition, the shape of these a little openings 243 and reflective pixel electrode 47 does not need identically not limit yet, and it can be circle, rectangle, strip or irregular shape.The position of these a little openings 243 does not limit yet, if only opening 243 positions get final product corresponding to reflective pixel electrode 47.Though opening 243 shown in Figure 4 is positioned at the upside of pixel region 20, also can be positioned at the downside or the centre of pixel region 20 in one embodiment.The quantity of opening 243 and reflective pixel electrode 47 does not limit yet, and pixel region 20 also can comprise most the different local openings 243 that are positioned at pixel region 20.Pixel region 20 also can or be divided into zone, the for example embodiment of following Fig. 8 up and down for a zone.
Like Fig. 2, shown in 3 and 4, opening 243 and reflective pixel electrode 47 are made as W for the width of the opening 243 of circular and this section, and the width in optical filtering mark district 34 is made as X, and the width of the reflective pixel electrode 47 of this section is made as H.The size of opening 243 and reflective pixel electrode 47 does not limit.In the present embodiment, make the big or small identical of opening 243 and reflective pixel electrode 47.Reflective pixel electrode 47 is positioned at the zone of the corresponding opening 243 of first transparency carrier 41 in one embodiment, therefore can make width H less than width W.
Fig. 5 reaches according to the voltage (Voltage) and penetrance (T%) and reflectivity (R%) curve map of a pixel in the semitransparent and half-reflective liquid crystal display of one embodiment of the invention in positive visual angle for existing.Curve T16 and T23 are roughly overlapping among Fig. 5.In detail, Fig. 5 show positive visual angle promptly under the situation at 0 degree visual angle its section aperture efficiency of embodiment according to Fig. 2 be H: W: X=30: simulate the gained curve map at 30: 60.Curve C R0 and CT0 are respectively the curve according to prior art (no dielectric layer is that the dielectric layer thickness is 0) reflectivity and penetrance and voltage.Curve R16 and T16 are respectively according to one embodiment of the invention, and the thickness of the dielectric layer 23 that first transparency conducting layer 241 and second transparency conducting layer are 242 is 16000 unit head, the curve of its reflectivity and penetrance and voltage.Curve R23 and T23 are respectively according to one embodiment of the invention, and the thickness of the dielectric layer 23 that first transparency conducting layer 241 and second transparency conducting layer are 242 is Unit 23000, the curve of its reflectivity and penetrance and voltage.As shown in Figure 5, with respect to prior art, the curve R16 of this two embodiment and T16 and curve R23 and T23 each other comparatively near and all near the curve C T0 of prior art penetrance.Only have a zone to have an electric field in the pixel of prior art, therefore the brightness meeting of echo area is brighter under low voltage.Pixel according to one embodiment of the invention; Have two different electric fields owing to be formed with two zones; Can make earlier that bright echo area becomes brighter by the control of electric field, the curve of the penetrance of preferably can just arranging in pairs or groups reaches bright spot when voltage is the 5V left and right sides; Make curve R16 and T16 and curve R23 and T23 comparatively approaching each other, and then can the Gamma curve of penetrating region and echo area be adjusted to preferable Gamma curve.
Like following table one, table one is a pixel in prior art and the present embodiment semitransparent and half-reflective liquid crystal display, the penetrating region under its different driving voltage and the correlative value of echo area.
Its echo area of the pixel of prior art is 3V when reaching the highest contrast; And penetrating region is at 7V.With respect to this, its echo area of the pixel of present embodiment has been increased to 5.5V when reaching the highest contrast; And penetrating region also is 7V.Therefore the pixel of present embodiment can make earlier that bright echo area becomes brighter, and with respect to prior art, can make voltage that the echo area reaches the highest contrast more reach the voltage of the highest contrast near penetrating region.
Table one
| Structure voltage | 1V | 2V | 2.5V | 3V | 4V |
| Prior art penetrate contrast | 1.25 | 1.25 | 3.25 | 618.00 | 131.80 |
| The reflection contrast of prior art | 1.00 | 1.00 | 1.00 | 47.33 | 23.42 |
| Present embodiment penetrate contrast | 1.22 | 1.25 | 63.61 | 562.00 | 1260.87 |
| The reflection contrast of present embodiment | 1.00 | 1.00 | 2.44 | 12.55 | 25.18 |
| Structure voltage | 5V | 5.5V | 6V | 7V |
| Prior art penetrate contrast | 1507.36 | 1550.82 | 1581.05 | 1619.96 |
| The reflection contrast of prior art | 8.60 | 6.63 | 5.77 | 5.22 |
| Present embodiment penetrate contrast | 1478.26 | 1528.18 | 1563.61 | 1610.31 |
| The reflection contrast of present embodiment | 39.35 | 44.69 | 43.35 | 31.15 |
Fig. 6 A is according to the GTG of a pixel in one embodiment of the invention semitransparent and half-reflective liquid crystal display and penetrance curve map.Fig. 6 A displayed map 2 embodiment visual angles are the curve of 0 degree (curve GA0), 45 degree (curve GA45), 60 degree (curve GA60); And the prior art visual angle is the curve of 0 degree (curve GC0), 45 degree (curve GC45), 60 degree (curve GC60).Can know that by Fig. 6 A each curve of one embodiment of the invention gained is compared to each curve of prior art gained, more near the curve and the Gamma2.2 curve at prior art 0 degree visual angle.Curve GA0, GC0 and Gamma2.2 are near overlapping among this figure.
Fig. 6 B is according to the GTG of a pixel in one embodiment of the invention semitransparent and half-reflective liquid crystal display and reflectance curve figure.Fig. 6 B displayed map 2 embodiment visual angles are that curve (curve GRA0), the prior art visual angle of the reflectivity of 0 degree is the curve (curve GRC0) and the Gamma2.2 curve of the reflectivity of 0 degree.Can know that by Fig. 6 B compared to the curve GRC0 of prior art, the curve GRA0 of one embodiment of the invention is more near the Gamma2.2 curve.Therefore, the Gamma curve of penetrating region of one embodiment of the invention and echo area can be near the Gamma2.2 curve.
Please, can know that the thickness of dielectric layer can influence voltage (Voltage) and penetrance (T%) and reflectivity (R%) curve map again with reference to figure 5.Therefore can change the thickness of dielectric layer according to product.The dielectric layer of Fig. 2 embodiment is a chromatic filter layer 23, might influence image quality when changing thickness, can adopt the embodiment of Fig. 7 for head it off.
Fig. 7 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.The semitransparent and half-reflective liquid crystal display 10a of Fig. 7 and colored filter substrate 12a are similar in appearance to semitransparent and half-reflective liquid crystal display 10 and the colored filter substrate 12 of Fig. 2; Therefore, identical assembly uses identical symbol and omits its related description in these a little LCDs and the colored filter substrate.Below only explain to these a little LCDs and the different part of colored filter substrate.As shown in Figure 7, the colored filter substrate 12a of semitransparent and half-reflective liquid crystal display 10a is different from the colored filter substrate 12 of LCD 10.The dielectric layer that first transparency conducting layer 241 of colored filter substrate 12a and second transparency conducting layer are 242 can be for being different from a hyaline layer of chromatic filter layer, and colored filter substrate 12a more comprises a chromatic filter layer 23.In detail, colored filter substrate 12a comprises one second transparency carrier 21, one first transparency conducting layer 241, one second transparency conducting layer 242, a dielectric layer 245 and a chromatic filter layer 23.First transparency conducting layer 241 is positioned at 242 of second transparency carrier 21 and second transparency conducting layers; Dielectric layer 245 is positioned at 242 of first transparency conducting layer 241 and second transparency conducting layers; Chromatic filter layer 23 is located at 21 of first transparency conducting layer 241 and second transparency carriers, and the corresponding pixel region 20 in 34 positions, an optical filtering mark district of chromatic filter layer 23.Preferably, chromatic filter layer 23 is formed on second transparency carrier 21, and first transparency conducting layer 241 is formed on the chromatic filter layer 23, and dielectric layer 245 is formed on first transparency conducting layer 241, and second transparency conducting layer 242 is formed on the dielectric layer 245.In the present embodiment, can adjust the thickness of the dielectric layer 245 of hyaline layer, when improving the thickness of adjustment chromatic filter layer 23 to the influence of display picture quality.
Fig. 8 is according to the floor map that constitutes two adjacent pixel regions on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.Fig. 9 is according to the floor map that constitutes a pixel region on the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.Two adjacent pixel region 821 of Fig. 8 and 822 and the pixel region 823 of Fig. 9 all similar in appearance to the pixel region 20 of Fig. 4, therefore, identical assembly uses identical symbol and omits its related description in these a little pixel regions.Please refer to Fig. 8 and Fig. 9, pixel region 821,822 and 823 comprises a zone 381,382 and 383 respectively and respectively these a little pixel regions is divided into upside and downside, and a switching assembly of the corresponding driving component substrate in position can be distinguished in zone 381,382 and 383.
As shown in Figure 8, second transparency conducting layer in the pixel region 821 and 822, define respectively one be positioned at zone 381 and 382 upside first opening 841 and 851; And one be positioned at zone 381 and 382 downside second opening 842 and 852.The area of second opening 842 (being shaped as rectangle) is different from the area of first opening 841 (being shaped as circle).Preferably, pixel region 821 and 822 is adjacent, and the area (or shape) of first opening 841 of pixel region 821 is same as the area (or shape) of second opening 852 of pixel region 822; And the area (or shape) of second opening 842 of pixel region 821 is same as the area (or shape) of first opening 851 of pixel region 822.The area (or shape) that makes the opening in four above-mentioned zones of two adjacent pixel regions for up and down staggered or about be crisscross arranged, avoid when two light transmittance in four above-mentioned zones differs greatly, and produce tangible brightness disproportionation phenomenon.As shown in Figure 9, the upside of pixel region 823 and downside comprise first and second opening 861 and 862 of a plurality of strips respectively.First and second opening 861 and 862 long axis direction are different, and preferably, the long axis direction of these a little openings is mirror each other along zone 383, and design can slow down the brightness disproportionation phenomenon according to this.Will be appreciated that though in the present embodiment pixel is divided into upper and lower sides, this non-qualification person of the present invention can not be divided into upper and lower sides with pixel in one embodiment yet.In the embodiment of Fig. 8 and Fig. 9, the reflective pixel electrode 47 of driving component substrate 14 is the corresponding said opening in position and being provided with also, below no longer specifies.
Figure 10 is the floor map according to the filter sheet base plate of one embodiment of the invention semitransparent and half-reflective liquid crystal display.The colored filter substrate 712 of Figure 10 is similar in appearance to the colored filter substrate 12 of Fig. 2, and therefore, identical assembly uses identical symbol and omits its related description in these a little colored filter substrates.Colored filter substrate 712 defines a viewing area 722 and a non-display area 721, comprises pixel region 20 in the viewing area 722.The zone of the not display frame of non-display area 721 corresponding LCDs 10, and non-display area 721 defines a through hole 723 is used first transparency conducting layer 241 that makes colored filter substrate 712 and second transparency conducting layer 242 and is seen through through hole 723 and be electrically connected.So more can not influence the display quality of LCD 10 at non-display area 721 because of through hole 723.According to present embodiment; Only need that one of them applies a common electric voltage to first transparency conducting layer 241 and second transparency conducting layer 242; And another transparency conducting layer can see through this through hole 723 these common electric voltages of reception; Therefore present embodiment increases by a transparency conducting layer, need not increase assemblies such as TFT and IC, can make 48 at least two of generations of pixel region 20 and pixel electrode make the zone of the different vergence directions of liquid crystal molecule tool of liquid crystal layer 16.Compared to prior art, the colored filter substrate of present embodiment and the aperture opening ratio of LCD are big and cost is lower.In addition, in the present embodiment, non-display area 721 is positioned at the outside of colored filter substrate 712 and surrounds said pixel region 20.
According to an embodiment semitransparent and half-reflective liquid crystal display, can be by adjustment H: W: the ratio between X be come deisgn product, compared to prior art, can more easily improve the Gamma curve of penetrating region and echo area.Also can be by adjustment opening 243 and the shape of reflective pixel electrode 47 and the Gamma curve that the area size is improved penetrating region and echo area.Can those width be made as X＞W >=H in an embodiment of the present invention, also can be made as X＞H >=W in one embodiment.
Figure 11 is the synoptic diagram according to the part section of the semitransparent and half-reflective liquid crystal display of one embodiment of the invention.The semitransparent and half-reflective liquid crystal display 10b of Figure 11 and colored filter substrate 12b are similar in appearance to semitransparent and half-reflective liquid crystal display 10 and the colored filter substrate 12 of Fig. 2; Therefore, identical assembly uses identical symbol and omits its related description in these a little semitransparent and half-reflective liquid crystal displays and the colored filter substrate.Below only explain to the different part of two colored filter substrates.In the present embodiment, further to define the width of the opening 244 of an opening 244 and this section be Y to the first transparency conducting layer 241b of colored filter substrate 12b.And preferably opening 244 positions are corresponding to the singular point in the electric field (Singular Point).The inventor carries out embossing phenomenon when experiment and finds, when voltage is 0V to 4V, can slow down the embossing phenomenon according to the LCD 10 of Fig. 2 embodiment significantly; But when voltage is 4V to 5V when voltage is 0V to 4V to slow down degree more not obvious.And according to the LCD 10b of Figure 11 embodiment, compared to LCD 10, voltage be 4V to 5V to slow down degree more obvious, therefore can further slow down the embossing phenomenon.
According to present embodiment semitransparent and half-reflective liquid crystal display 10b, can be by adjustment section aperture efficiency Y: H: W: the ratio between X be come deisgn product, increases the variable of a Y compared to Fig. 2 LCD 10.Yet when the width Y of opening 244 is healed when big; The light-permeable district of pixel region 20 is littler; Therefore should be when design according to product color offset phenomenon and embossing phenomenon in various degree, to section aperture efficiency Y: variablees such as the thickness of H: W: X, dielectric layer and hole shape carry out optimized adjustment.
The above is merely illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim, but not be defined in the above embodiments its equivalent modifications of carrying out or change.
Claims (11)
1. a transflective liquid crystal display device is characterized in that, said transflective liquid crystal display device comprises:
One driving component substrate comprises:
One first transparency carrier;
A plurality of changeover modules are formed on said first transparency carrier;
A plurality of reflective pixel electrodes are formed on said first transparency carrier; And
A plurality of transparent pixels electrodes are formed on said first transparency carrier and each said switch groups
Part be electrically connected said transparent pixels electrode one of them and said reflective pixel electrode one of them;
One colored filter substrate defines a plurality of pixel regions, the corresponding said transparent pixels electrode in the position of each said pixel region one of them and said reflective pixel electrode at least one of them; And
One liquid crystal layer is located between said colored filter substrate and said driving component substrate,
Wherein said colored filter substrate comprises one second transparency carrier, one first transparency conducting layer, one second transparency conducting layer and a dielectric layer; And said first transparency conducting layer is positioned at said second transparency carrier and the said second electrically conducting transparent interlayer; Said dielectric layer is positioned at said first transparency conducting layer and the said second electrically conducting transparent interlayer; And said second transparency conducting layer in each said pixel region defines at least one opening, and said aperture position corresponds respectively to said reflective pixel electrode.
2. transflective liquid crystal display device as claimed in claim 1; It is characterized in that; Said dielectric layer is a chromatic filter layer; Said chromatic filter layer comprises a black matrix layer and by a plurality of optical filtering marks district that said black matrix layer defined, and the corresponding said pixel region of each said optical filtering mark zone position one of them.
3. transflective liquid crystal display device as claimed in claim 2 is characterized in that, said first transparency conducting layer is located between said second transparency carrier and the said chromatic filter layer.
4. transflective liquid crystal display device as claimed in claim 3 is characterized in that, said opening or said reflective pixel electrode be shaped as circle or rectangle.
5. transflective liquid crystal display device as claimed in claim 1 is characterized in that, said reflective pixel electrode lays respectively in the zone of the corresponding said opening of said first transparency carrier.
6. transflective liquid crystal display device as claimed in claim 1 is characterized in that, said reflective pixel electrode lays respectively between said first transparency carrier and said transparent pixels electrode.
7. transflective liquid crystal display device as claimed in claim 6 is characterized in that, said transparent pixels electrode covers said reflective pixel electrode respectively.
8. transflective liquid crystal display device as claimed in claim 1; It is characterized in that; Said colored filter substrate further defines a non-display area; Said non-display area comprises a through hole, and said first transparency conducting layer and said second transparency conducting layer see through said through hole and be electrically connected.
9. transflective liquid crystal display device as claimed in claim 8 is characterized in that said non-display area is positioned at the outside of said colored filter substrate, and surrounds said pixel region.
10. transflective liquid crystal display device as claimed in claim 9; It is characterized in that; Said transflective liquid crystal display device further comprises a chromatic filter layer; Said chromatic filter layer comprises a black matrix layer and by a plurality of optical filtering marks district that said black matrix layer defined, and the corresponding said pixel region of each said optical filtering mark zone position one of them.
11. transflective liquid crystal display device as claimed in claim 10 is characterized in that, said chromatic filter layer is located between said first transparency conducting layer and said second transparency carrier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101610808A CN101989008B (en) | 2009-08-07 | 2009-08-07 | Transflective liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101610808A CN101989008B (en) | 2009-08-07 | 2009-08-07 | Transflective liquid crystal display |
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| CN101989008A CN101989008A (en) | 2011-03-23 |
| CN101989008B true CN101989008B (en) | 2012-05-09 |
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| CN2009101610808A Expired - Fee Related CN101989008B (en) | 2009-08-07 | 2009-08-07 | Transflective liquid crystal display |
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| CN108490652B (en) * | 2018-02-09 | 2020-05-22 | 深圳市华星光电半导体显示技术有限公司 | Gamma automatic adjustment method and system |
| US11300838B1 (en) * | 2020-11-18 | 2022-04-12 | Innolux Corporation | Transparent display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896821A (en) * | 2005-06-23 | 2007-01-17 | 三菱电机株式会社 | Semi-transmissive liquid crystal display device and method of manufacture thereof |
| JP2007094030A (en) * | 2005-09-29 | 2007-04-12 | Sanyo Epson Imaging Devices Corp | Liquid crystal device and electronic equipment |
| CN1949054A (en) * | 2005-10-14 | 2007-04-18 | 京东方显示器科技公司 | Transflective type liquid crystal display |
| JP2009058638A (en) * | 2007-08-30 | 2009-03-19 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display device |
-
2009
- 2009-08-07 CN CN2009101610808A patent/CN101989008B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896821A (en) * | 2005-06-23 | 2007-01-17 | 三菱电机株式会社 | Semi-transmissive liquid crystal display device and method of manufacture thereof |
| JP2007094030A (en) * | 2005-09-29 | 2007-04-12 | Sanyo Epson Imaging Devices Corp | Liquid crystal device and electronic equipment |
| CN1949054A (en) * | 2005-10-14 | 2007-04-18 | 京东方显示器科技公司 | Transflective type liquid crystal display |
| JP2009058638A (en) * | 2007-08-30 | 2009-03-19 | Toshiba Matsushita Display Technology Co Ltd | Liquid crystal display device |
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