CN104280950A - Liquid crystal display panel and liquid crystal display device adopting liquid crystal display panel - Google Patents

Liquid crystal display panel and liquid crystal display device adopting liquid crystal display panel Download PDF

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Publication number
CN104280950A
CN104280950A CN201410469966.XA CN201410469966A CN104280950A CN 104280950 A CN104280950 A CN 104280950A CN 201410469966 A CN201410469966 A CN 201410469966A CN 104280950 A CN104280950 A CN 104280950A
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China
Prior art keywords
pixel electrode
slit
liquid crystal
substrate
area
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Granted
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CN201410469966.XA
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Chinese (zh)
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CN104280950B (en
Inventor
陈建宏
谢志勇
陈英仁
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Innolux Corp
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Innolux Display Corp
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Priority to CN201410469966.XA priority Critical patent/CN104280950B/en
Priority claimed from CN200910163557.6A external-priority patent/CN101995715B/en
Publication of CN104280950A publication Critical patent/CN104280950A/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136286Wiring, e.g. gate line, drain line
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136213Storage capacitors associated with the pixel electrode
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/13624Active matrix addressed cells having more than one switching element per pixel

Abstract

The invention provides a liquid crystal display panel and a liquid crystal display device adopting the liquid crystal display panel. The liquid crystal display device comprises a backlight module and the liquid crystal display panel, wherein the backlight module is used for providing a light ray, the liquid crystal display panel is arranged at one side of the backlight module, the light ray penetrates through the liquid crystal display panel, the liquid crystal display panel comprises a base plate, a scanning line, a first data line, a second data line, a first switch element, a second switch element, a first pixel electrode and a second pixel electrode, the scanning line and the first and second data lines are arranged on the base plate, the first and second data lines are vertical to the scanning line, the first and second switch elements are respectively arranged at a crossing point of the scanning line and the first data line and a crossing point of the scanning line and the second data line, the first and second pixel electrodes are respectively and electrically connected with the first and second switch elements, and in addition, the area of the first pixel electrode is actually smaller than the area of the second pixel electrode.

Description

Display panels and apply its liquid crystal indicator
The application is application on August 21st, 2009, and application number is the divisional application of the Chinese invention patent application of 200910163557.6
Technical field
The invention relates to a kind of display panels and apply its liquid crystal indicator, and relate to especially and a kind of there is the display panels that multiple domain liquid crystal is swung to and the liquid crystal indicator applying it.
Background technology
Consumption electronic products are day by day subject to the welcome of consumer in recent years, electronic product miscellaneous, and even as mobile phone, notebook computer LCD TV etc., have become an indispensable part in present people's daily life.Particularly apply the thin type display device of display panels, owing to having the advantages such as small size, Low emissivity and low power consumption, replace conventional picture tube display gradually, become first-selection when consumer chooses display or TV.Along with liquid crystal indicator acceptance commercially increases, consumer also has day by day harsh requirement for the picture quality of liquid crystal indicator, correctness of such as visible angle, contrast and colour temperature etc.
Traditional vertical orientation liquid crystal indicator, when watching picture along the normal direction of display panel, gamma (gamma) value that is red, green and blue grey scale curve is sequentially redness and is greater than green, and green is greater than blueness.That is thus, the white light produced after easily causing colour mixture is when different gray scale, and the phenomenon of color temperature shift can occur chroma point, the colour temperature of such as white light when 128 gray scale can higher than the colour temperature of white light when 255 gray scale.Have a strong impact on the correctness of color during liquid crystal indicator display frame thus.
Current industry has a kind of solution, and it is represented with different red gray scales, green gray scale and blue gray scale respectively by the white gray degree for display.But, when carrying out the different gray scale display of different colours, need to be applied to the buffered that a large amount of storage space carries out for red, green and blueness respectively data.Larger storage space improves the manufacturing cost of liquid crystal indicator accordingly.
Summary of the invention
In view of this, the invention provides a kind of display panels and apply its liquid crystal indicator, it is the mode utilizing the pixel electrode corresponding to different pieces of information line to have different area, the grey scale curve of corresponding different pixels electrode can be arranged in pairs or groups mutually, to reduce the color temperature shift of picture when the different gray scale, promote display quality further.
According to the present invention, propose a kind of display panels, comprise a substrate, scan line, one first data line, one second data line, one first on-off element, one first pixel electrode, a second switch element and one second pixel electrode.Sweep trace, the first data line and the second data line are arranged on substrate, and the first data line and the second data line are perpendicular to sweep trace.First on-off element is arranged on the intersection point of sweep trace and the first data line, and second switch element is arranged on the intersection point of sweep trace and the second data line.First pixel electrode and the first on-off element are electrically connected, and the second pixel electrode and second switch element are electrically connected.The area of the first pixel electrode is less than the area of the second pixel electrode.
According to the present invention, a kind of liquid crystal indicator of another proposition, comprises a backlight module and a display panels.Backlight module passes through display panels in order to provide a light penetration.Display panels is arranged at the side of backlight module, and comprises a substrate, scan line, one first data line, one second data line, one first on-off element, one first pixel electrode, a second switch element and one second pixel electrode.Sweep trace, the first data line and the second data line are arranged on substrate, and the first data line and one second data line are perpendicular to sweep trace.First on-off element is arranged on the intersection point of sweep trace and the first data line, and second switch element is arranged on the intersection point of sweep trace and the second data line.First pixel electrode and the first on-off element are electrically connected, and the second pixel electrode and second switch element are electrically connected.The area of the first pixel electrode is less than the area of the second pixel electrode.
According to the present invention, reintroduce a kind of display panels, comprise a first substrate, scan line, one first data line, one second data line, one first on-off element, one first pixel electrode, a second switch element, one second pixel electrode, a second substrate, one first common electrode and one second common electrode.Sweep trace, the first data line and the second data line are arranged on first substrate, and the first data line and the second data line are perpendicular to sweep trace.First on-off element is arranged on the intersection point of sweep trace and the first data line, and second switch element is arranged on the intersection point of sweep trace and the second data line.First pixel electrode is arranged at first substrate, and is electrically connected with the first on-off element.Second pixel electrode is arranged at first substrate, and is electrically connected with second switch element.Second substrate is arranged on the subtend of first substrate.First common electrode is arranged at second substrate, and overlapped with the first pixel electrode at least partly.Second common electrode is arranged at second substrate, and overlapped with the second pixel electrode at least partly.First pixel electrode and the first common electrode overlapping is closed area and is less than the second pixel electrode and closes area with the overlapping of the second common electrode.
According to the present invention, propose again a kind of liquid crystal indicator, comprise a backlight module and a display panels.Backlight module passes through display panels in order to provide a light penetration.Display panels is arranged at the side of backlight module, and comprises a first substrate, scan line, one first data line, one second data line, one first on-off element, one first pixel electrode, a second switch element, one second pixel electrode, a second substrate, one first common electrode and one second common electrode.Sweep trace, the first data line and the second data line are arranged on first substrate, and the first data line and the second data line are perpendicular to sweep trace.First on-off element is arranged on the intersection point of sweep trace and the first data line, and second switch element is arranged on the intersection point of sweep trace and the second data line.First pixel electrode is arranged at first substrate, and is electrically connected with the first on-off element.Second pixel electrode is arranged at first substrate, and is electrically connected with second switch element.Second substrate is arranged on the subtend of first substrate.First common electrode is arranged at second substrate, and overlapped with the first pixel electrode at least partly.Second common electrode is arranged at second substrate, and overlapped with the second pixel electrode at least partly.First pixel electrode and the first common electrode overlapping is closed area and is less than the second pixel electrode and closes area with the overlapping of the second common electrode.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates the liquid crystal indicator according to present pre-ferred embodiments;
Fig. 2 illustrates the schematic diagram of the first substrate of display panels in Fig. 1;
Fig. 3 illustrates first time slit and the schematic diagram of second time slit when having a different in width;
Fig. 4 illustrates schematic diagram when the first flange and the second flange have a different in width;
Fig. 5 illustrates the schematic diagram of the display panels comprising the first pixel electrode, the second pixel electrode and the 3rd pixel electrode;
Fig. 6 illustrates the schematic diagram of first, second pixel electrode and first, second common electrode in display panels;
Fig. 7 illustrates the sectional view along A-A ' line in Fig. 6;
Fig. 8 illustrates the sectional view of the display panels including the 3rd common electrode; And
Voltage-breakthrough curve figure when color shows is carried out in the dissimilar region that Fig. 9 A ~ 9C illustrates the first pixel electrode and the first common electrode respectively;
Main element symbol description:
100: liquid crystal indicator
110: backlight module
121: the first on-off elements
122: second switch element
131: the first pixel electrodes
131a: the first flange
132,132 ', 132 ": the second pixel electrode
132a, 132a ', 132a ": the second flange
133: the three pixel electrodes
140: sweep trace
141: the first data lines
142: the second data lines
143: the three data lines
150: display panels
151: first substrate
152: second substrate
153: liquid crystal
161: the first main slits
162,162 ', 162 ": the second main slit
163: the three main slits
164: the four main slits
171: slit for the first time
172,172 ', 172 ": second time slit
173: slit for the third time
174: the four slits
181: the first common electrodes
181a: the three flange
182: the second common electrodes
182a: the four flange
183: the three common electrodes
B1, B2, B3, G1, G2, G3, R1, R2, R3: curve
D1, d2, d3, d4: the length of secondary slit
E1, e2, e2 ', e2 ": the width of flange
L: light
W1, w2, w2 ', w2 ", w3, w4: the width of secondary slit
Embodiment
According to the liquid crystal indicator of present pre-ferred embodiments, at least comprise a backlight module and a display panels.Display panels is the mode utilizing the pixel electrode in different colours pixel to have different area, the grey scale curve of different colours pixel can be arranged in pairs or groups compensation mutually, display frame can be allowed to have colour temperature identical in fact when different gray scale, the display quality of further improving product.Below propose the detailed description according to embodiments of the invention, right embodiment, can't the scope of limit the present invention for protecting only in order to illustrate as example.Moreover the accompanying drawing in embodiment also omits unnecessary element, with clear display technical characterstic of the present invention.
The liquid crystal indicator according to present pre-ferred embodiments is illustrated referring to Fig. 1 and Fig. 2, Fig. 1; Fig. 2 illustrates the schematic diagram of the first substrate of display panels in Fig. 1.Liquid crystal indicator 100 comprises backlight module 110 and a display panels 150.Backlight module 110 penetrates through display panels 150 in order to provide a light L.Display panels 150 is the sides being arranged at backlight module 110, and comprises a first substrate 151, scan line 140,1 first data line 141,1 second data line 142,1 first on-off element 121,1 first pixel electrode 131, second switch element 122 and one second pixel electrode 132.Sweep trace 140, first data line 141 and the second data line 142 are all arranged on first substrate 151, and the first data line 141 and the second data line 142 arrange perpendicular to sweep trace 140 respectively.First on-off element 121 is arranged near the intersection point of sweep trace 140 and the first data line 141, and second switch element 122 is arranged near the intersection point of sweep trace 140 and the second data line 142.First pixel electrode 131 is electrically connected with the first on-off element 121, and the second pixel electrode 132 is electrically connected with second switch element 122.The area of the first pixel electrode 131 is less than the area 132 of the second pixel electrode.
In the present embodiment, the first pixel electrode 131 is such as show blueness.And display panels 150 is such as multi-zone vertical alignment nematic (multi-domaine vertical alignment; MVA) display panels.Area due to the first pixel electrode 131 is less than the area of the second pixel electrode 132, and the grey scale curve of the pixel of corresponding first pixel electrode 131 can be allowed to fall within fact below the grey scale curve of the pixel of corresponding second pixel electrode 132.Thus, the grey scale curve of the first pixel electrode 131 and the second pixel electrode 132 can be arranged in pairs or groups compensation mutually, and then makes display panels 150 have identical colour temperature when different white gray is spent, and promotes display quality.After being specified in about the content of this part.
Structure below for display panels 150 further illustrates.As shown in Figure 2, the first pixel electrode 131 has at least one first main slit (main slit) 161, second pixel electrode 132 and has at least one second main slit 162.Moreover the first pixel electrode 131 corresponds to the edge of the first main slit 161, has multiple first time slit (fine slit) 171 and multiple first flange 131a; Second pixel electrode 132 corresponds to the edge of the second main slit 162, has multiple second time slit 172 and multiple second flange 132a.Can apply multiple design in the present embodiment makes the area of the first pixel electrode 131 be less than the area 132 of the second pixel electrode.Such as utilize the length of first time slit 171 to be greater than in fact the mode of the length of second time slit 172, make the area of the first pixel electrode 131 be less than the area of the second pixel electrode 132.As Figure 2 illustrates, first time slit 171 length d1 be greater than in fact second time slit 172 length d2, Overall View it, the area of the first pixel electrode 131 is less than the area of the second pixel electrode 132.Comparatively speaking, the first main slit 161 and the area of first time slit 171 on first substrate 151 are greater than the second main slit 162 and the area of second time slit 172 on first substrate 151.
In addition, the display panels 150 of the present embodiment also can apply first time slit 171 and second time slit 172 there is the design of different in width.Please refer to Fig. 3, it illustrates first time slit and the schematic diagram of second time slit when having a different in width.First pixel electrode 131 first time slit 171 width w1 be greater than in fact the width w2 ' of the second time slit 172 ' of the second pixel electrode 132 '.Therefore, the area of the first pixel electrode 131 is less than the area of the second pixel electrode 132 '.
In addition, the width of the first flange 131a also can be utilized in the present embodiment to be different from the mode of the width of the second flange 132a, to make the area of the first pixel electrode 131 be less than the area of the second pixel electrode 132.Please refer to Fig. 4, it illustrates schematic diagram when the first flange and the second flange have a different in width.The width e 1 of this little first flange 131a is less than in fact this little second flange 132a " width e 2 ", generally speaking the area of the first pixel electrode 131 is less than the second pixel electrode 132 " area.
In practical application, the length d1 that the display panels 150 of the present embodiment can apply first time slit 171 be simultaneously greater than second time slit 172 length d2, first time slit 171 width w1 is greater than the second time width w2 of slit 172, the width e 1 of the first flange 131a is less than the second flange 132a width e 2 or its mode of mutually arranging in pairs or groups, make the area of the first pixel electrode 131 be less than the area of the second pixel electrode 132.Other utilize and change flange, main slit and secondary slit sizes in the mode making the area of the first pixel electrode 131 be less than the area of the second pixel electrode 132, all belong to scope of the present invention.
On the other hand, the display panels 150 of the present embodiment more can comprise one the 3rd data line, one the 3rd on-off element and one the 3rd pixel electrode.Please refer to Fig. 5, it illustrates the schematic diagram of the display panels comprising the first pixel electrode, the second pixel electrode and the 3rd pixel electrode.3rd data line 143 is arranged on first substrate 151, and perpendicular to sweep trace 140.3rd on-off element 123 is arranged on the near intersections of sweep trace 140 and the 3rd data line 143.3rd pixel electrode 133 is electrically connected with the 3rd on-off element 123.The area of the first pixel electrode 131 is less than the area of the 3rd pixel electrode 133, and the area of the second pixel electrode 132 and the area of the 3rd pixel electrode 133 can optionally be designed to equal or unequal.That is the area of the area of the first pixel electrode 131, the area of the second pixel electrode 132 and the 3rd pixel electrode 133 can be in fact all unequal.In addition, this little pixel electrode 131,132 and 133 application of aforementioned can change flange, main slit and the length of secondary slit or the mode of width, makes the area of the first pixel electrode 131 be less than the area of the second pixel electrode 132 and the 3rd pixel electrode 133.
In practical application, the display panels 150 of the liquid crystal indicator 100 of the present embodiment more can comprise second substrate 152,1 first common electrode 181 and one second common electrode 182, as shown in Figure 1.Referring to the schematic diagram of first, second pixel electrode in the liquid crystal indicator that Fig. 6 and Fig. 7, Fig. 6 illustrate according to present pre-ferred embodiments and first, second common electrode; Fig. 7 illustrates the sectional view along A-A ' line in Fig. 6.Second substrate 152 is arranged at the subtend of first substrate 151.First common electrode 181 is arranged on second substrate 152, and at least part of and the first pixel electrode 131 overlapped (overlapping).Second common electrode 182 is arranged on second substrate 152, and overlapped with the second pixel electrode 132 at least partly.First pixel electrode 131 and the first common electrode 181 overlapping is closed area and is less than the second pixel electrode 132 and closes area with the overlapping of the second common electrode 182.In addition, second substrate 152 is more such as be provided with colored filter (color filter).
Further, the first common electrode 181 and the second common electrode 182 have at least one 3rd main slit 163 and at least one 4th main slit 164 respectively.The edge that first common electrode 181 corresponds to the 3rd main slit 163 has multiple third time slit 173 and multiple 3rd flange 181a, and the edge that the second common electrode 182 corresponds to the 4th main slit 164 has multiple 4th slit 174 and multiple 4th flange 182a.The length of this little slit 171 for the first time or this little slit 173 is for the third time greater than the length of these a little second time slits 172 or this little 4th slit 174.In the embodiment that Fig. 6 and Fig. 7 illustrates, this, length d1 of slit 171 was greater than the length d2 of this little second time slit 172 a little first time, and this little third time slit 173 length d3 be greater than the length d4 of this little 4th slit 174.Further, the length d1 of this little slit 171 for the first time is such as equal in fact the length d3 of this little slit 173 for the third time, and the length d2 of this little second time slit 172 is such as equal in fact the length d4 of this little 4th slit 174.In addition, this little slit 171 is for the first time overlapped in this little slit 173 for the third time at least partly, and this little second time slit 172 is not overlapped in this little 4th slit 174.But, this a little first, second, third and the length d1 of the 4th slit 171,172,173 and 174, the collocation mode of d2, d3 and d4 be not restricted to this, every first pixel electrode 131 that allows is less than the second pixel electrode 132 and the overlapping collocation mode closing area of the second common electrode 182 with the overlapping area that closes of the first common electrode 181, all belongs to scope of the present invention.
In addition, the display panels 150 of the present embodiment also can apply first, second, third and the 4th slit 171,172,173 and 174 there is the design of different in width.Such as, this, width w1 of slit 171 was greater than the width w2 (showing as depicted in fig. 3) of this little second time slit 172 a little first time, and this little third time slit 173 width be greater than the width of this little 4th slit 174.All the other apply the configuration mode of not homogeneous slit width, and the overlapping area that closes making the first pixel electrode 131 and the first common electrode 181 is less than the second pixel electrode 132 and closes area person with the overlapping of the second common electrode 182, all belongs to scope of the present invention.
But also can apply in another embodiment first, second, third and the 4th flange 131a, 132a, 181a and 182a there is the design of different in width.Such as, the width of this little 3rd flange 181a is less than the width of this little 4th flange 182a.All the other apply the configuration mode of different flange width, make the first pixel electrode 131 be less than the second pixel electrode 132 and the overlapping configuration mode closing area of the second common electrode 182 with the overlapping area that closes of the first common electrode 181, all belong to scope of the present invention.
In practical application, the display panels 150 of the present embodiment can apply the configuration mode of configuration mode, not homogeneous slit width of different slit length, the configuration mode of different flange width or its mode of mutually arranging in pairs or groups simultaneously, and the overlapping area that closes making the first pixel electrode 131 and the first common electrode 181 is less than the second pixel electrode 132 and closes area with the overlapping of the second common electrode 182.Other utilize change flange, main slit and secondary slit sizes to be less than the second pixel electrode 132 and the overlapping configuration mode closing area of the second common electrode 182 to make the first pixel electrode 131 with the overlapping area that closes of the first common electrode 181, all belong to scope of the present invention.
The display panels 150 of the liquid crystal indicator 100 of the present embodiment, can comprise the 3rd data line 143, the 3rd on-off element 124 and the 3rd pixel electrode 133, show as shown graphically in fig 5.Further, display panels 150 more can comprise one the 3rd common electrode.Please refer to Fig. 8, it illustrates the sectional view of the display panels including the 3rd common electrode.3rd common electrode 183 is arranged at second substrate 152 and correspondence is positioned at the place of the 3rd pixel electrode 133, and overlapped with the 3rd pixel electrode 133 at least partly.This little electrode can different main slit, secondary slit and the length of flange of application of aforementioned or the configuration mode of width, and the overlapping area that closes making the first pixel electrode 131 and the first common electrode 181 is less than the 3rd pixel electrode 133 and closes area with the overlapping of the 3rd common electrode 183.In addition, the overlap of the second pixel electrode 132 and the second common electrode 182 closes area, and the overlap conjunction area of the 3rd pixel electrode 133 and the 3rd common electrode 183 can optionally be designed to equal or unequal.That is the first pixel electrode 131 and the first common electrode 181 overlapping closes area, the overlapping of the second pixel electrode 132 and the second common electrode 182 closes area and the 3rd pixel electrode 133 can be in fact all unequal with the overlapping area that closes of the 3rd common electrode 183.In practical application, first pixel electrode 131 and the first common electrode 181 are positioned at one first colored pixels, second pixel electrode 132 and the second common electrode 182 are positioned at one second colored pixels, and the 3rd pixel electrode 132 and the 3rd common electrode 183 are positioned at one the 3rd colored pixels.
Display panels 150 can be divided into according to the presence or absence of common electrode or pixel electrode: a first kind region, for first substrate 151 and second substrate 152 all having the region of electrode; One Second Type region, for wherein first substrate 151 or second substrate 152 being region that electrode and another substrate are time slit; And one the 3rd type area, for first substrate 151 and second substrate 152 being the region of time slit.Simulate for the first pixel electrode 131 in Fig. 6 and the first common electrode 181 below.Please refer to Fig. 9 A ~ 9C, the voltage-breakthrough curve figure (V-T curve diagram) during color display is carried out in its dissimilar region illustrating the first pixel electrode and the first common electrode respectively.When the first pixel electrode 131 and the first common electrode 181 are when showing redness, as shown in Figure 9 A, the slope of the voltage-breakthrough curve R1 in first kind region is greater than in fact the voltage-breakthrough curve R2 in Second Type region, and the slope of the voltage in Second Type region-breakthrough curve R2 is greater than in fact the voltage-breakthrough curve R3 of the 3rd type area.Secondly, when the first pixel electrode 131 and the first common electrode 181 are in order to show green, as shown in Figure 9 B, the slope of the voltage-breakthrough curve G1 in first kind region is greater than in fact the voltage-breakthrough curve G2 in Second Type region, and the slope of the voltage in Second Type region-breakthrough curve G2 is greater than in fact the voltage-breakthrough curve G3 of the 3rd type area.Moreover, when the first pixel electrode 131 and the first common electrode 181 are in order to show blueness, as shown in Figure 9 C, the slope of the voltage-breakthrough curve B1 in first kind region is greater than in fact the voltage-breakthrough curve B2 in Second Type region, and the slope of the voltage in Second Type region-breakthrough curve B2 is greater than in fact the voltage-breakthrough curve B3 of the 3rd type area.
From above-mentioned analog result, when in the first pixel electrode 131 and the first common electrode 181 first and the 3rd main slit 161 and 163 and first and third time slit 171 and 173 shared by area increase time, the slope of voltage-breakthrough curve reduces, that is its grey scale curve reduces in fact the position that it is arranged in grey scale curve figure.In the present embodiment, overlap due to the first pixel electrode 131 and the first common electrode 181 is closed the overlap that area is less than the second pixel electrode 132 and the second common electrode 182 and is closed area, and the overlap being less than the 3rd pixel electrode 133 and the 3rd common electrode 183 closes area, therefore correspond to the first colored pixels of the first pixel electrode 131 and the first common electrode 181, there is the slit area of maximum specific weight.In the present embodiment, the first pixel electrode 131 shows blue to be described for example, compared to the situation that the slit area occupied ratio in tradition three colored pixels is all equal, voltage-breakthrough curve blue in the liquid crystal indicator 100 of the present embodiment has less slope, and it is arranged in the lower position of grey scale curve figure.In this way, same gray scale can be had and arrange in pairs or groups compared with the blue light of low penetration rate compared with red light and the green light and having with gray scale of high penetration, make white light have identical colour temperature when different gray scale is spent, reach the effect of the colour temperatures such as full gray scale.
On the other hand, in the present embodiment, the first on-off element 121 and second switch element 122 are respectively a thin film transistor (TFT) (thin film transistor; TFT).Display panels 150 more comprises one first storage capacitors (storage capacitor; And one second storage capacitors Cst).First storage capacitors is electrically connected with the first pixel electrode 131, and the second storage capacitors is electrically connected with the second pixel electrode 132.Generally speaking, when carrying out picture display, because pixel voltage can produce a feed-trough voltage (feedthrough voltage) after sweep trace is closed, the liquid crystal 153 (being illustrated in Fig. 1) be arranged between two substrates 151 and 152 is made to experience voltage drop.This voltage drop size and liquid crystal capacitance (liquid crystal capacitor; Clc), electric capacity (gate-drain capacitor between storage capacitors and gate-to-drain; Cgd) relevant, its expression is wherein Vgh is grid voltage when opening; Voltage when Vgl is grid closedown.Because the area ratio showing slit in the first blue colored pixels in the present embodiment is greater than redness and green color pixel, cause the liquid crystal capacitance in the first colored pixels can be less than redness and green.In addition, according to following relational expression: ΔV = Cgd Cst + Clc + Cgd ( Vgh - Vgl ) = 1 [ ( Cst + Clc / Cgd ) + 1 ( Vgh - Vgl ) , Be certain value to the feed-trough voltage maintained in the first colored pixels, the second colored pixels and the 3rd colored pixels, in each colored pixels, between storage capacitors from gate-to-drain, electric capacity need have different designs.Be described for two kinds of situations below:
First, when the storage capacitors of each colored pixels is certain value to liquid crystal capacitance ratio, because the liquid crystal capacitance of the first colored pixels (display blue) and the first storage capacitors are all less than remaining colored pixels (display is red and green), therefore in the first colored pixels, the conjunction of storage capacitors and liquid crystal capacitance is less than redness and green, and in the first colored pixels between gate-to-drain electric capacity also need to be less than electric capacity between the gate-to-drain in the second colored pixels and the 3rd colored pixels, to maintain certain feed-trough voltage.That is, between the gate-to-drain of the first film transistor in the present embodiment in the first colored pixels electric capacity be less than the second thin film transistor (TFT) gate-to-drain between electric capacity;
Secondly, when the storage capacitors of each colored pixels is non-definite value to liquid crystal capacitance ratio, three colored pixels maintain the condition of identical feed-trough voltage for (Cst+Clc)/Cgd is identical individually.Because the liquid crystal capacitance of the first colored pixels (display is blue) is less than redness and green, therefore (the Cst+Clc)/Cgd ratio to each colored pixels is identical, capacitance size between its storage capacitors and gate-to-drain can be adjusted respectively, completely depending on demand.
Generally speaking to maintain certain feed-trough voltage, and when the storage capacitors of each colored pixels is certain value to liquid crystal capacitance ratio, the colored pixels that between gate-to-drain, electric capacity must be designed to display blue is minimum; If storage capacitors to liquid crystal capacitance than for non-definite value, then can adjust electric capacity between the storage capacitors of each colored pixels and gate-to-drain respectively depending on demand.
The above-mentioned display panels according to present pre-ferred embodiments and apply its liquid crystal indicator, utilize the electrode in different colours pixel to have different area, and the mode that the ratio shared by slit in different colours pixel is not identical, the grey scale curve of different colours pixel can be arranged in pairs or groups compensation mutually, display frame is allowed to have colour temperature identical in fact when different white gray, reach the effect of the colour temperatures such as the full gray scale of white, the display quality of improving product.In addition, utilize the mode of electrode lay-out to reach the effect reducing color temperature shift, the memory span needed for the display gray scale changing different colours respectively can be reduced, can reduce costs.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when being as the criterion of defining with claims.

Claims (10)

1. a display panels, comprising:
One first substrate;
Scan line, is arranged on described first substrate;
One first data line and one second data line, be arranged on described first substrate;
One first on-off element , Even connects described sweep trace and described first data line;
One first pixel electrode, is electrically connected with described first on-off element;
One second switch element , Even connects described sweep trace and described second data line; And
One second pixel electrode, is electrically connected with described second switch element;
Wherein, the area of described first pixel electrode is less than the area of described second pixel electrode, described first pixel electrode and described second pixel electrode have at least one first main slit (main slit) and at least one second main slit respectively, the edge that described first pixel electrode corresponds to described first main slit has multiple first time slit (fine slit), the edge that described second pixel electrode corresponds to described second main slit has multiple second time slit, the edge that described first pixel electrode corresponds to described first main slit has more multiple first flange, described first flange is and the spaced setting of described first time slit, the edge that described second pixel electrode corresponds to described second main slit has more multiple second flange, described second flange is and the spaced setting of described second time slit, the width of wherein said first flange is different in essence in the width of described second flange.
2. display panels as claimed in claim 1, it is characterized in that, the width of described first flange is less than in fact the width of described second flange.
3. display panels as claimed in claim 1, is characterized in that, also comprise:
One first storage capacitors (storage capacitor), is electrically connected with described first pixel electrode; And
One second storage capacitors, is electrically connected with described second pixel electrode;
Wherein, described first storage capacitors is less than described second storage capacitors.
4. display panels as claimed in claim 1, is characterized in that, also comprise:
One second substrate, is arranged on the subtend of described first substrate;
One first common electrode, is arranged at described second substrate, and overlapped with described first pixel electrode at least partly; And
One second common electrode, is arranged at described second substrate, and overlapped with described second pixel electrode at least partly.
5. display panels as claimed in claim 4, is characterized in that, described first pixel electrode and described first common electrode overlapping is closed area and be less than described second pixel electrode and close area with the overlapping of described second common electrode.
6. a display panels, comprising:
One first substrate;
Scan line, is arranged on described first substrate;
One first data line and one second data line, be arranged on described first substrate;
One first on-off element , Even connects described sweep trace and described first data line;
One first pixel electrode, is electrically connected with described first on-off element;
One second switch element , Even connects described sweep trace and described second data line; And
One second pixel electrode, is electrically connected with described second switch element;
Wherein, the area of described first pixel electrode is less than the area of described second pixel electrode, described first pixel electrode and described second pixel electrode have at least one first main slit (main slit) and at least one second main slit respectively, the edge that described first pixel electrode corresponds to described first main slit has multiple first time slit (fine slit), described second pixel electrode corresponds to the edge of described second main slit and has multiple second time slit, described first time the width of slit be different in essence in the width of described second time slit.
7. display panels as claimed in claim 6, is characterized in that, described first time the width of slit be greater than in fact the width of described second time slit.
8. display panels as claimed in claim 6, is characterized in that, also comprise:
One first storage capacitors (storage capacitor), is electrically connected with described first pixel electrode; And
One second storage capacitors, is electrically connected with described second pixel electrode;
Wherein, described first storage capacitors is less than described second storage capacitors.
9. display panels as claimed in claim 6, is characterized in that, also comprise:
One second substrate, is arranged on the subtend of described first substrate;
One first common electrode, is arranged at described second substrate, and overlapped with described first pixel electrode at least partly; And
One second common electrode, is arranged at described second substrate, and overlapped with described second pixel electrode at least partly.
10. display panels as claimed in claim 9, is characterized in that, described first pixel electrode and described first common electrode overlapping is closed area and be less than described second pixel electrode and close area with the overlapping of described second common electrode.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108983518A (en) * 2018-07-23 2018-12-11 深圳市华星光电半导体显示技术有限公司 Array substrate and preparation method thereof
CN112363348A (en) * 2020-12-10 2021-02-12 深圳市华星光电半导体显示技术有限公司 Multi-domain vertical alignment type display panel and display device thereof
CN114217481A (en) * 2021-12-30 2022-03-22 绵阳惠科光电科技有限公司 Display panel and display device

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JP2002040480A (en) * 2000-07-24 2002-02-06 Matsushita Electric Ind Co Ltd Liquid crystal display device
US20050179844A1 (en) * 2002-05-10 2005-08-18 Roosendaal Sander J. Bistable liquid crystal device with picture electrodes having comb structure
JP2007240806A (en) * 2006-03-08 2007-09-20 Epson Imaging Devices Corp Liquid crystal display device
KR100835112B1 (en) * 2007-01-30 2008-06-03 전북대학교산학협력단 Fringe-field switching liquid crystal display
JP4600463B2 (en) * 2007-11-21 2010-12-15 ソニー株式会社 Liquid crystal display

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108983518A (en) * 2018-07-23 2018-12-11 深圳市华星光电半导体显示技术有限公司 Array substrate and preparation method thereof
CN108983518B (en) * 2018-07-23 2020-09-29 深圳市华星光电半导体显示技术有限公司 Array substrate and preparation method thereof
CN112363348A (en) * 2020-12-10 2021-02-12 深圳市华星光电半导体显示技术有限公司 Multi-domain vertical alignment type display panel and display device thereof
CN114217481A (en) * 2021-12-30 2022-03-22 绵阳惠科光电科技有限公司 Display panel and display device

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