WO2020062524A1 - Pixel electrode unit and display panel - Google Patents

Pixel electrode unit and display panel Download PDF

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WO2020062524A1
WO2020062524A1 PCT/CN2018/117309 CN2018117309W WO2020062524A1 WO 2020062524 A1 WO2020062524 A1 WO 2020062524A1 CN 2018117309 W CN2018117309 W CN 2018117309W WO 2020062524 A1 WO2020062524 A1 WO 2020062524A1
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pixel electrode
main
electrode unit
liquid crystal
electrode
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French (fr)
Chinese (zh)
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单剑锋
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惠科股份有限公司
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Geometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)

Abstract

A pixel electrode unit, comprising: a first pixel electrode unit for allowing red, green, and blue lights to pass through, a second pixel electrode unit, and a third pixel electrode unit. The electrode width of a main electrode of the first pixel electrode unit is W R. The electrode width of a main electrode of the second pixel electrode unit is W G. The electrode width of a main electrode of the third pixel electrode unit is W B. W R>W G>W B.

Description

像素电极单元及显示面板Pixel electrode unit and display panel
本申请要求于2018年9月30日提交中国专利局，申请号为2018111620400，申请名称为“像素电极单元、显示面板及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed on September 30, 2018 with the Chinese Patent Office under the application number of 2018111620400 and entitled "Pixel Electrode Unit, Display Panel and Display Device", the entire contents of which are incorporated herein by reference. Applying.
技术领域Technical field
本申请涉及一种像素电极单元及显示面板。The present application relates to a pixel electrode unit and a display panel.
背景技术Background technique
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.
随着多媒体技术的快速发展，显示装置也有着飞跃性的进步，用户要求也越来越高，因而，液晶面板对各灰阶颜色准确度的一致性要求也越来越高,尤其各灰阶的白点座标，都希望能够一样不变，这样消费者在观赏影片时，能够真正享受到逼真的颜色表现。With the rapid development of multimedia technology, display devices have also made rapid progress, and user requirements have become higher and higher. Therefore, LCD panels have increasingly higher consistency requirements for the accuracy of each grayscale color, especially each grayscale. I hope that the white point coordinates are the same, so that consumers can truly enjoy lifelike color performance when watching movies.
然而，由于一般显示器的彩膜中，蓝膜的厚度最大，其次是绿膜的厚度，再次是红膜的厚度，而液晶盒间隙是以绿膜的厚度定义/监控/量测的，由此定义/监控/量测的液晶层间隙与实际液晶层间隙存在差异，进而影响Δnd而影响液晶层的穿透率值，最终造成红(R)/绿(G)/蓝(B)的电压穿透率曲线(V-T)不同(参见图1，其中，Tr-R为电压红光穿透率曲线，Tr-G为电压绿光穿透率曲线，Tr-B为电压蓝光穿透率曲线，从曲线可以看出，相同灰阶电压下，红光穿透率＞绿光穿透率＞蓝光穿透率)，使得各灰阶的白点存在不一致的问题。However, the blue film has the largest thickness in the color film of a general display, followed by the thickness of the green film, and then the thickness of the red film, and the liquid crystal cell gap is defined / monitored / measured by the thickness of the green film. The definition / monitoring / measurement of the gap between the liquid crystal layer and the actual liquid crystal layer has a difference, which further affects Δnd and affects the transmittance value of the liquid crystal layer, which ultimately causes the voltage penetration of red (R) / green (G) / blue (B) The transmittance curve (VT) is different (see Figure 1, where Tr-R is the voltage red light transmittance curve, Tr-G is the voltage green light transmittance curve, and Tr-B is the voltage blue light transmittance curve, from It can be seen from the curve that under the same grayscale voltage, the red light transmittance> green light transmittance> blue light transmittance) makes the white point of each grayscale inconsistent.
发明内容Summary of the Invention
根据本申请公开的各种实施例，提供一种像素电极单元及显示面板。According to various embodiments disclosed in the present application, a pixel electrode unit and a display panel are provided.
一种像素电极单元，包括：A pixel electrode unit includes:
分别允许红、绿、蓝三种颜色的光透过的第一像素电极单元、第二像素电极单元以及第三像素电极单元；A first pixel electrode unit, a second pixel electrode unit, and a third pixel electrode unit that respectively allow light of three colors of red, green, and blue to pass through;
其中，第一像素电极单元的主干电极的电极宽度为W R，第二像素电极单元的主干电极的电极宽度为W G，第三像素电极单元主干电极的电极宽度为W B，W R＞W G＞W B。 The electrode width of the main electrode of the first pixel electrode unit is W R , the electrode width of the main electrode of the second pixel electrode unit is W G , and the electrode width of the main electrode of the third pixel electrode unit is W B , W R > W G > W B.
在其中一个实施例中，所述W R＞W G＞W B中，W R为120％W G～125％W G，W B为75％W G～80％W G。 In one embodiment, in the W R > W G > W B , W R is 120% W G to 125% W G , and W B is 75% W G to 80% W G.
在其中一个实施例中，所述W R＞W G＞W B中，W R＝12μm，所述W G＝10μm，所述W B＝8μm。 In one embodiment, in the W R > W G > W B , W R = 12 μm, the W G = 10 μm, and the W B = 8 μm.
在其中一个实施例中，第一像素电极单元的主干电极各个位置处的宽度相等，第二像素电极单元的主干电极各个位置处的宽度相等，第三像素电极单元的主干电极各个位置处的宽度相等。In one embodiment, the widths of the trunk electrodes of the first pixel electrode unit are equal to each other, the widths of the trunk electrodes of the second pixel electrode unit are equal to each other, and the widths of the trunk electrodes of the third pixel electrode unit are equal. equal.
在其中一个实施例中，第一像素电极单元主干电极包括第一主干像素电极和第二主干像素电极，所述第一主干像素电极和所述第二主干像素电极相交，并形成有多个液晶配向区；In one embodiment, the main electrode of the first pixel electrode unit includes a first main pixel electrode and a second main pixel electrode. The first main pixel electrode and the second main pixel electrode intersect, and a plurality of liquid crystals are formed. Alignment area
第二像素电极单元主干电极包括第三主干像素电极和第四主干像素电极，所述第三主干像素电极和所述第四主干像素电极相交，并形成有多个液晶配向区；The main electrode of the second pixel electrode unit includes a third main pixel electrode and a fourth main pixel electrode, and the third main pixel electrode and the fourth main pixel electrode intersect and form a plurality of liquid crystal alignment regions;
第三像素电极单元主干电极包括第五主干像素电极和第六主干像素电 极，所述第五主干像素电极和所述第六主干像素电极相交，并形成有多个液晶配向区。The main electrode of the third pixel electrode unit includes a fifth main pixel electrode and a sixth main pixel electrode. The fifth main pixel electrode and the sixth main pixel electrode intersect and form a plurality of liquid crystal alignment regions.
在其中一个实施例中，所述第一主干像素电极和所述第二主干像素电极相互垂直，并形成有四个液晶配向区；In one embodiment, the first trunk pixel electrode and the second trunk pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed;
所述第三主干像素电极和所述第四主干像素电极相互垂直，并形成有四个液晶配向区；The third trunk pixel electrode and the fourth trunk pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed;
所述第五主干像素电极和和所述第六主干像素电极相互垂直，并形成有四个液晶配向区。The fifth main pixel electrode and the sixth main pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed.
在其中一个实施例中，第一像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第一主干像素电极和所述第二主干像素电极之一连接；In one embodiment, the first pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the first trunk pixel electrode and the second trunk pixel electrode;
第二像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第三主干像素电极和所述第四主干像素电极之一连接；The second pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the third trunk pixel electrode and the fourth trunk pixel electrode;
第三像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第五主干像素电极和所述第六主干像素电极之一连接。The third pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the fifth trunk pixel electrode and the sixth trunk pixel electrode.
在其中一个实施例中，第一像素电极单元的支干电极的宽度为W r，第二像素电极单元的支干电极的电极宽度为W g，第三像素电极单元的支干电极的电极宽度为W b，W r＞W g＞W b。 In one embodiment, the width of the branch electrode of the first pixel electrode unit is W r , the electrode width of the branch electrode of the second pixel electrode unit is W g , and the electrode width of the branch electrode of the third pixel electrode unit It is W b , W r > W g > W b .
在其中一个实施例中，第一像素电极单元的支干电极各个位置处的宽度相等，第二像素电极单元的支干电极各个位置处的宽度相等，第三像素电极单元的支干电极各个位置处的宽度相等。In one embodiment, the widths of the branch electrodes of the first pixel electrode unit are the same at all positions, the widths of the branch electrodes of the second pixel electrode unit are the same, and the positions of the branch electrodes of the third pixel electrode unit The widths are equal.
在其中一个实施例中，支干电极相对于与之连接的主干电极呈一倾斜角度排列。In one embodiment, the branch electrodes are arranged at an oblique angle relative to the main electrode connected to the branch electrodes.
在其中一个实施例中，所述倾斜角度的绝对值为0°-45°。In one embodiment, the absolute value of the tilt angle is 0 ° -45 °.
在其中一个实施例中，所述支干电极沿倾斜角度方向延伸，根据支干电极延伸方向的不同而形成配向方向各相异的液晶配向区。In one embodiment, the branch electrodes extend along an oblique angle direction, and liquid crystal alignment regions with different alignment directions are formed according to different extending directions of the branch electrodes.
在其中一个实施例中，相邻液晶配向区的配向方向镜像对称。In one embodiment, the alignment directions of adjacent liquid crystal alignment regions are mirror-symmetrical.
在其中一个实施例中，在每一液晶配向区内，相邻支干电极之间具有缝隙。In one embodiment, in each liquid crystal alignment region, there is a gap between adjacent branch electrodes.
在其中一个实施例中，在每一液晶配向区内，沿远离该液晶配向区中心区域的方向，相邻支干电极之间的缝隙逐级减小或逐级增大。In one embodiment, in each liquid crystal alignment region, a gap between adjacent branch electrodes is gradually reduced or gradually increased in a direction away from a central region of the liquid crystal alignment region.
一种像素电极单元，包括：A pixel electrode unit includes:
分别允许红、绿、蓝三种颜色的光透过的第一像素电极单元、第二像素电极单元以及第三像素电极单元；A first pixel electrode unit, a second pixel electrode unit, and a third pixel electrode unit that respectively allow light of three colors of red, green, and blue to pass through;
其中，第一像素电极单元的主干电极的电极宽度为W R，第二像素电极单元的主干电极的电极宽度为W G，第三像素电极单元主干电极的电极宽度为W B，W R为120％W G～125％W G，W B为75％W G～80％W G； The electrode width of the main electrode of the first pixel electrode unit is W R , the electrode width of the main electrode of the second pixel electrode unit is W G , and the electrode width of the main electrode of the third pixel electrode unit is W B , and W R is 120 % W G ~ 125% W G , W B is 75% W G ~ 80% W G ;
其中，第一像素电极单元主干电极包括第一主干像素电极和第二主干像素电极，所述第一主干像素电极和所述第二主干像素电极相交，并形成有多个液晶配向区；第二像素电极单元主干电极包括第三主干像素电极和第四主干像素电极，所述第三主干像素电极和所述第四主干像素电极相交，并形成有多个液晶配向区；第三像素电极单元主干电极包括第五主干像素电极和第六主干像素电极，所述第五主干像素电极和所述第六主干像素电极相交，并形成有多个液晶配向区。The main electrode of the first pixel electrode unit includes a first main pixel electrode and a second main pixel electrode. The first main pixel electrode and the second main pixel electrode intersect and form a plurality of liquid crystal alignment regions. The main electrode of the pixel electrode unit includes a third main pixel electrode and a fourth main pixel electrode. The third main pixel electrode intersects the fourth main pixel electrode and forms a plurality of liquid crystal alignment regions. The electrode includes a fifth main pixel electrode and a sixth main pixel electrode. The fifth main pixel electrode and the sixth main pixel electrode intersect with each other, and a plurality of liquid crystal alignment regions are formed.
一种显示面板，包括如上所述的像素电极单元。A display panel includes a pixel electrode unit as described above.
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请 的其它特征和优点将从说明书、附图以及权利要求书变得明显。Details of one or more embodiments of the present application are set forth in the accompanying drawings and description below. Other features and advantages of the application will become apparent from the description, the drawings, and the claims.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings according to the drawings without paying creative labor.
图1为一种R/G/B的电压穿透率曲线图；FIG. 1 is a graph of voltage transmittance of R / G / B;
图2为一实施例中像素电极单元的结构示意图；2 is a schematic structural diagram of a pixel electrode unit in an embodiment;
图3为另一种R/G/B的电压穿透率曲线图；FIG. 3 is a graph of voltage transmittance of another R / G / B;
图4为图2所示实施例中的像素电极单元的细化结构示意图；FIG. 4 is a schematic diagram showing a detailed structure of a pixel electrode unit in the embodiment shown in FIG. 2; FIG.
图5为图2所示实施例中的像素电极单元的细化结构示意图。FIG. 5 is a schematic diagram illustrating a detailed structure of a pixel electrode unit in the embodiment shown in FIG. 2.
具体实施方式detailed description
为了使本申请的技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。In order to make the technical solution and advantages of the present application more clear and clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.
参见图2，图2为一实施例中像素电极单元的结构示意图。Referring to FIG. 2, FIG. 2 is a schematic structural diagram of a pixel electrode unit in an embodiment.
本实施例提供了一种液晶显示面板的像素电极单元，包括分别允许红、绿、蓝三种颜色的光透过的第一像素电极单元101、第二像素电极单元102以及第三像素电极单元103，即第一像素电极单元101、第二像素电极单元102以及第三像素电极单元103分别对应彩膜RGB模式下的红色、绿色以及蓝色，对应显示不同的色光。This embodiment provides a pixel electrode unit of a liquid crystal display panel, which includes a first pixel electrode unit 101, a second pixel electrode unit 102, and a third pixel electrode unit that respectively allow light of three colors of red, green, and blue to pass through. 103, that is, the first pixel electrode unit 101, the second pixel electrode unit 102, and the third pixel electrode unit 103 respectively correspond to red, green, and blue in the color film RGB mode, and respectively display different color lights.
其中，第一像素电极单元101、第二像素电极单元102以及第三像素电极单元103均包括有主干电极，第一像素电极单元101的主干电极11的电极宽度为W R，第二像素电极单元102的主干电极12的电极宽度为W G，第三像素电极单元103主干电极13的电极宽度为W B，W R＞W G＞W B。在其中一个实施例中，第一像素电极单元101主干电极11各个位置处的宽度相等，第二像素电极单元102主干电极12各个位置处的宽度相等，第三像素电极单元103主干电极13各个位置处的宽度相等。需要说明的是，相同像素电极单元的各主干电极的各个位置处的宽度也可以不相等，但均满足W R＞W G＞W B。 The first pixel electrode unit 101, the second pixel electrode unit 102, and the third pixel electrode unit 103 each include a stem electrode. The electrode width of the stem electrode 11 of the first pixel electrode unit 101 is W R , and the second pixel electrode unit is W R. The electrode width of the trunk electrode 12 of 102 is W G , and the electrode width of the trunk electrode 13 of the third pixel electrode unit 103 is W B , W R > W G > W B. In one embodiment, the widths of the first pixel electrode unit 101 at the positions of the trunk electrode 11 are equal, the width of the second pixel electrode units 102 at the positions of the trunk electrode 12 are equal, and the positions of the third pixel electrode unit 103 at the positions of the trunk electrode 13 The widths are equal. It should be noted that the widths at the positions of the main electrodes of the same pixel electrode unit may not be equal, but all satisfy W R > W G > W B.
在本实施例中，第一像素电极单元101的主干电极11电极宽度W R、第二像素电极单元102主干电极12电极宽度W G以及第三像素电极单元103主干电极13电极宽度W B均不相同，为W R＞W G＞W B。由于主干电极11宽度最大、主干电极12宽度次之，主干电极13宽度最小，使得第一像素电极单元101对应的液晶盒厚相比于第二像素电极单元102对应的液晶盒厚变大，盒厚的区间也变宽，因而液晶的预倾角和运行角变小，则开口率相应减小因而第一像素电极单元101对应的穿透率随之减小；而第三像素电极单元103对应的液晶盒厚相比于第二像素电极单元102对应的液晶盒厚变小，盒厚的区间也变窄，因而液晶的预倾角和运行角增大，则开口率相应增大因而第三像素电极单元103对应的穿透率随之增大。由此，通过设置W R＞W G＞W B，使不同像素电极单元对应的液晶分子形成不同的预倾角和运行角，能够解决由于定义/监控/量测的液晶层间隙与实际液晶层间隙存在差异而使得在相同灰阶电压下红光穿透率＞绿光穿透率＞蓝光穿透率的问题，使主干电极对应的液晶层最终的红光穿透率、绿光穿透率、蓝光穿透率相等，从而电压红光穿透率曲线、电压绿光穿透率曲线以及电压蓝光穿透率曲线重叠一致(如图3所示，其中，Tr-R 为电压红光穿透率曲线，Tr-G为电压绿光穿透率曲线，Tr-B为电压蓝光穿透率曲线)，液晶显示图像各灰阶的白点平衡一致，显示图像具有逼真的颜色表现。其中，W R、W G、W B各具体值以使电压红光穿透率曲线、电压绿光穿透率曲线以及电压蓝光穿透率曲线重叠一致为基准进行调节设定，在其中一种实施例中，W R为120％W G～125％W G，W B为75％W G～80％W G。例如，W R＝12μm，W G＝10μm，W B＝8μm，能够使最终液晶层的红光穿透率、绿光穿透率、蓝光穿透率均相等，液晶显示图像各灰阶的白点平衡一致。 In this embodiment, the width of the main electrode 11 electrode width W R of the first pixel electrode unit 101, the width of the main electrode 12 electrode width W G of the second pixel electrode unit 102, and the width of the main electrode 13 electrode width W B of the third pixel electrode unit 103 are all different. The same is W R > W G > W B. Since the width of the trunk electrode 11 is the largest, the width of the trunk electrode 12 is the second, and the width of the trunk electrode 13 is the smallest, so that the thickness of the liquid crystal cell corresponding to the first pixel electrode unit 101 is larger than that of the liquid crystal cell corresponding to the second pixel electrode unit 102. The interval is also wider, so the pretilt and operating angle of the liquid crystal become smaller, the aperture ratio is correspondingly reduced, and the transmittance corresponding to the first pixel electrode unit 101 is reduced accordingly; and the liquid crystal corresponding to the third pixel electrode unit 103 is reduced. The cell thickness is smaller than that of the corresponding liquid crystal cell of the second pixel electrode unit 102, and the cell thickness interval is also narrowed. Therefore, as the pretilt angle and operating angle of the liquid crystal increase, the aperture ratio increases accordingly and the third pixel electrode unit 103 The corresponding transmittance increases accordingly. Therefore, by setting W R > W G > W B , the liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and operating angles, which can solve the gap between the liquid crystal layer defined and monitored / measured and the actual liquid crystal layer gap. There is a problem that the red light transmittance> green light transmittance> blue light transmittance at the same grayscale voltage makes the final red light transmittance, green light transmittance, The blue light transmittance is equal, so the voltage red light transmittance curve, voltage green light transmittance curve, and voltage blue light transmittance curve overlap (see Figure 3, where Tr-R is the voltage red light transmittance Curve, Tr-G is the voltage green light transmittance curve, Tr-B is the voltage blue light transmittance curve), the white points of each gray level of the liquid crystal display image are balanced, and the display image has realistic color performance. Among them, the specific values of W R , W G , and W B are adjusted and set based on overlapping the voltage red light transmittance curve, voltage green light transmittance curve, and voltage blue light transmittance curve. In the embodiment, W R is 120% W G to 125% W G , and W B is 75% W G to 80% W G. For example, W R = 12 μm, W G = 10 μm, and W B = 8 μm. The red light transmittance, green light transmittance, and blue light transmittance of the final liquid crystal layer can be made equal. The points are balanced.
本实施例提供的像素电极单元，通过设置W R＞W G＞W B，使不同像素电极单元对应的液晶分子形成不同的预倾角和运行角，使液晶层最终的红光穿透率、绿光穿透率、蓝光穿透率相等，从而电压红光穿透率曲线、电压绿光穿透率曲线以及电压蓝光穿透率曲线重叠一致，液晶显示图像各灰阶的白点平衡一致，显示图像具有逼真的颜色表现。 In the pixel electrode unit provided in this embodiment, by setting W R > W G > W B , the liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and operating angles, so that the final red light transmittance and green of the liquid crystal layer The light transmittance and blue light transmittance are equal, so that the voltage red light transmittance curve, voltage green light transmittance curve, and voltage blue light transmittance curve overlap and are consistent, and the white points of each gray level of the liquid crystal display image are consistent. The image has realistic color expression.
参见图4和图5，图4和图5为图2所示实施例中的像素电极单元的细化结构示意图。Referring to FIG. 4 and FIG. 5, FIG. 4 and FIG. 5 are schematic diagrams illustrating a detailed structure of a pixel electrode unit in the embodiment shown in FIG. 2.
在本实施例中，第一像素电极单元101主干电极11包括第一主干像素电极111和第二主干像素电极112，第一主干像素电极111和第二主干像素电极112相交，并形成有多个液晶配向区；第二像素电极单元102主干电极12包括第三主干像素电极121和第四主干像素电极122，第三主干像素电极121和第四主干像素电极122相交，并形成有多个液晶配向区；第三像素电极单元103主干电极13包括第五主干像素电极131和第六主干像素电极132，第五主干像素电极131和第六主干像素电极132相交，并形成有多个液晶配向区。In this embodiment, the main electrode 11 of the first pixel electrode unit 101 includes a first main pixel electrode 111 and a second main pixel electrode 112. The first main pixel electrode 111 and the second main pixel electrode 112 intersect, and a plurality of main pixel electrodes 112 are formed. Liquid crystal alignment area; the second pixel electrode unit 102 trunk electrode 12 includes a third trunk pixel electrode 121 and a fourth trunk pixel electrode 122, the third trunk pixel electrode 121 and the fourth trunk pixel electrode 122 intersect, and a plurality of liquid crystal alignments are formed Region; the third pixel electrode unit 103 has a main electrode 13 including a fifth main pixel electrode 131 and a sixth main pixel electrode 132. The fifth main pixel electrode 131 and the sixth main pixel electrode 132 intersect, and a plurality of liquid crystal alignment regions are formed.
在其中一个实施例中，如图4所示，第一主干像素电极111和第二主干 像素电极112相互垂直，并形成有四个液晶配向区；第三主干像素电极121和第四主干像素电极122相互垂直，并形成有四个液晶配向区；第五主干像素电极131和第六主干像素电极132相互垂直，并形成有四个液晶配向区。In one embodiment, as shown in FIG. 4, the first main pixel electrode 111 and the second main pixel electrode 112 are perpendicular to each other, and four liquid crystal alignment regions are formed; the third main pixel electrode 121 and the fourth main pixel electrode. 122 is perpendicular to each other, and four liquid crystal alignment regions are formed; the fifth main pixel electrode 131 and the sixth main pixel electrode 132 are perpendicular to each other, and four liquid crystal alignment regions are formed.
在本实施例中，第一像素电极单元101还包括多个支干电极21，各个支干电极21的一端至少与第一主干像素电极111和第二主干像素电极112之一连接；第二像素电极单元102还包括多个支干电极22，各个支干电极22的一端至少与第三主干像素电极121和第四主干像素电极122之一连接；第三像素电极单元103还包括多个支干电极23，各个支干电极23的一端至少与第五主干像素电极131和第六主干像素电极132之一连接。In this embodiment, the first pixel electrode unit 101 further includes a plurality of branch electrodes 21, and one end of each branch electrode 21 is connected to at least one of the first and second main pixel electrodes 111 and 112; the second pixel The electrode unit 102 further includes a plurality of branch electrodes 22, and one end of each branch electrode 22 is connected to at least one of the third trunk pixel electrode 121 and the fourth trunk pixel electrode 122; the third pixel electrode unit 103 further includes a plurality of branch electrodes The electrode 23 has one end of each of the branch electrodes 23 connected to at least one of the fifth trunk pixel electrode 131 and the sixth trunk pixel electrode 132.
在其中一个实施例中，第一像素电极单元101的支干电极21的宽度为W r，第二像素电极单元102的支干电极22的电极宽度为W g，第三像素电极单元103的支干电极23的电极宽度为W b，W r＞W g＞W b。在一实施例中，支干电极21各个位置处的宽度相等，支干电极22各个位置处的宽度相等，支干电极23各个位置处的宽度相等。通过设置W r＞W g＞W b，使不同支干电极对应的液晶分子形成不同的预倾角和运行角，同样能够弥补支干电极对应的液晶层由于定义/监控/量测的液晶层间隙与实际液晶层间隙存在差异而红光穿透率＞绿光穿透率＞蓝光穿透率的问题，使支干电极对应的液晶层最终的红光穿透率、绿光穿透率、蓝光穿透率相等，从而电压红光穿透率曲线、电压绿光穿透率曲线以及电压蓝光穿透率曲线重叠一致，优化显示图像的显示效果。 In one embodiment, the width of the branch electrode 21 of the first pixel electrode unit 101 is W r , the electrode width of the branch electrode 22 of the second pixel electrode unit 102 is W g , and the width of the branch electrode of the third pixel electrode unit 103 is W g . The electrode width of the dry electrode 23 is W b , W r > W g > W b . In one embodiment, the widths of the branch electrodes 21 are equal at each position, the widths of the branch electrodes 22 are equal at each position, and the widths of the branch electrodes 23 are equal at each position. By setting W r ＞ W g ＞ W b , the liquid crystal molecules corresponding to different branch electrodes form different pretilt angles and operating angles, which can also make up for the liquid crystal layer corresponding to the branch electrodes due to the definition / monitoring / measurement of the liquid crystal layer gap There is a gap between the actual liquid crystal layer and the red light transmittance> green light transmittance> blue light transmittance, so that the final red light transmittance, green light transmittance, and blue light of the liquid crystal layer corresponding to the branch electrode The transmittances are equal, so that the voltage red light transmittance curve, the voltage green light transmittance curve, and the voltage blue light transmittance curve overlap, and the display effect of the displayed image is optimized.
在其中一个实施例中，支干电极相对于与之连接的主干电极呈一倾斜角度排列延伸。即，支干电极与主干电极连接，且两者之间呈一倾斜角度，支干电极沿倾斜角度方向延伸。各倾斜角度不受限定，可以根据实际需要配置为不同的合理值，在一个实施例中，各倾斜角度的绝对值可以是0°-45°。 各像素电极单元根据支干电极延伸方向的不同而形成配向方向各相异的液晶配向区。例如根据支干电极延伸方向的不同形成配向方向各相异的四个液晶配向区，四个液晶配向区中各个支干电极的排布相对于主干电极对称，由此优化像素电极单元的电场分布效果，进而优化液晶的指向。为了描述的方便，如图5所示，以第一像素电极单元101的第一液晶配向区1011为例来对支干电极的排列进行解释说明。第一液晶配向区1011内交替排布有第一支干电极211和第二支干电极212。其中，第一支干电极211和第二支干电极212的一端至少与第一主干像素电极111和第二主干像素电极112之一连接。第一支干电极211和第二支干电极212均沿以第一方向延伸至第一液晶配向区1011的边缘。其中，该第一方向可以但不限于为从左下到右上的延伸方向。在一个实施例中，相邻液晶配向区的配向方向镜像对称，使得液晶分子的预倾角对称排布。在一实施例中，在每一液晶配向区内，相邻支干电极之间具有缝隙。在每一液晶配向区内，沿远离该液晶配向区中心区域的方向，相邻支干电极之间的缝隙逐级减小或逐级增大，由此在电极加电时，由于同一液晶配向区内的支干电极间存在多种间距，使得支干电极所形成的电场强度不同，可以使得液晶分子形成不同的预倾角，进一步优化显示图像的显示效果。In one embodiment, the branch electrodes extend at an inclined angle relative to the main electrode connected to the branch electrodes. That is, the branch electrode is connected to the main electrode, and there is an inclined angle between them, and the branch electrode extends in the direction of the inclined angle. Each tilt angle is not limited, and can be configured to different reasonable values according to actual needs. In one embodiment, the absolute value of each tilt angle can be 0 ° -45 °. Each pixel electrode unit forms a liquid crystal alignment region with a different alignment direction according to a different extension direction of the branch electrode. For example, four liquid crystal alignment regions with different alignment directions are formed according to different extending directions of the branch electrodes. The arrangement of each branch electrode in the four liquid crystal alignment regions is symmetrical with respect to the main electrode, thereby optimizing the electric field distribution of the pixel electrode unit Effect, thereby optimizing the orientation of the liquid crystal. For convenience of description, as shown in FIG. 5, the arrangement of the branch electrodes is explained by taking the first liquid crystal alignment region 1011 of the first pixel electrode unit 101 as an example. A first branch electrode 211 and a second branch electrode 212 are alternately arranged in the first liquid crystal alignment region 1011. One end of the first and second trunk electrodes 211 and 212 is connected to at least one of the first and second trunk pixel electrodes 111 and 112. The first and second stem electrodes 211 and 212 each extend to the edge of the first liquid crystal alignment region 1011 in a first direction. The first direction may be, but is not limited to, an extending direction from the lower left to the upper right. In one embodiment, the alignment directions of adjacent liquid crystal alignment regions are mirror-symmetric, so that the pretilt angles of the liquid crystal molecules are symmetrically arranged. In one embodiment, in each liquid crystal alignment region, there is a gap between adjacent branch electrodes. In each liquid crystal alignment region, along the direction away from the center region of the liquid crystal alignment region, the gap between adjacent branch electrodes is gradually reduced or gradually increased. Therefore, when the electrodes are powered on, due to the same liquid crystal alignment There are various distances between the branch electrodes in the region, so that the electric field strength formed by the branch electrodes is different, which can cause the liquid crystal molecules to form different pretilt angles, and further optimize the display effect of the displayed image.
本实施例提供的像素电极单元，能够使液晶层最终的红光穿透率、绿光穿透率、蓝光穿透率相等，从而电压红光穿透率曲线、电压绿光穿透率曲线以及电压蓝光穿透率曲线重叠一致，液晶显示图像各灰阶的白点平衡一致，显示图像具有逼真的颜色表现。The pixel electrode unit provided in this embodiment can make the final red light transmittance, green light transmittance, and blue light transmittance of the liquid crystal layer equal, so that the voltage red light transmittance curve, voltage green light transmittance curve, and The voltage blue light transmittance curves have the same overlap, the white points of each gray level of the liquid crystal display image are consistent, and the display image has realistic color performance.
本实施例提供了一种显示面板，该显示面板包括多个如上述实施例所述的像素电极单元。具体地，显示面板可以是液晶显示面板。该显示面板，具有各灰阶颜色准确度的一致性，尤其是各灰阶的白点平衡一致，具有逼真的 颜色表现。This embodiment provides a display panel including a plurality of pixel electrode units as described in the above embodiments. Specifically, the display panel may be a liquid crystal display panel. This display panel has the consistency of the color accuracy of each gray level, especially the white point balance of each gray level, and has realistic color performance.
本实施例提供了一种显示装置，该显示装置包括上一实施例的显示面板。该显示装置的显示图像具有各灰阶颜色准确度的一致性，尤其是各灰阶的白点平衡一致，使得消费者在观赏影片时，能够真正享受到逼真的颜色表现。This embodiment provides a display device including the display panel of the previous embodiment. The display image of the display device has the consistency of the color accuracy of each gray level, especially the white point balance of each gray level, so that consumers can truly enjoy realistic color performance when watching movies.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the embodiments described above can be arbitrarily combined. In order to simplify the description, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, It should be considered as the scope described in this specification.
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they cannot be understood as limiting the scope of patents of the present application. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims (17)

  1. 一种像素电极单元，包括：A pixel electrode unit includes:
    分别允许红、绿、蓝三种颜色的光透过的第一像素电极单元、第二像素电极单元以及第三像素电极单元；A first pixel electrode unit, a second pixel electrode unit, and a third pixel electrode unit that respectively allow light of three colors of red, green, and blue to pass through;
    其中，第一像素电极单元的主干电极的电极宽度为W R，第二像素电极单元的主干电极的电极宽度为W G，第三像素电极单元主干电极的电极宽度为W B，W R＞W G＞W B。 The electrode width of the main electrode of the first pixel electrode unit is W R , the electrode width of the main electrode of the second pixel electrode unit is W G , and the electrode width of the main electrode of the third pixel electrode unit is W B , W R > W G > W B.
  2. 根据权利要求1所述的像素电极单元，其中，所述W R＞W G＞W B中，W R为120％W G～125％W G，W B为75％W G～80％W G。 The pixel electrode unit according to claim 1, wherein in the W R > W G > W B , W R is 120% W G to 125% W G , and W B is 75% W G to 80% W G .
  3. 根据权利要求2所述的像素电极单元，其中，所述W R＞W G＞W B中，W R＝12μm，所述W G＝10μm，所述W B＝8μm。 The pixel electrode unit according to claim 2, wherein in the W R > W G > W B , W R = 12 μm, the W G = 10 μm, and the W B = 8 μm.
  4. 根据权利要求1所述的像素电极单元，其中，第一像素电极单元的主干电极各个位置处的宽度相等，第二像素电极单元的主干电极各个位置处的宽度相等，第三像素电极单元的主干电极各个位置处的宽度相等。The pixel electrode unit according to claim 1, wherein the widths of the trunk electrodes of the first pixel electrode unit are equal at each position, the widths of the trunk electrodes of the second pixel electrode unit are equal at each position, and the trunks of the third pixel electrode unit The widths at the electrodes are equal.
  5. 根据权利要求1所述的像素电极单元，其中，第一像素电极单元主干电极包括第一主干像素电极和第二主干像素电极，所述第一主干像素电极和所述第二主干像素电极相交，并形成有多个液晶配向区；The pixel electrode unit according to claim 1, wherein the main electrode of the first pixel electrode unit includes a first main pixel electrode and a second main pixel electrode, and the first main pixel electrode and the second main pixel electrode intersect, And forming a plurality of liquid crystal alignment regions;
    第二像素电极单元主干电极包括第三主干像素电极和第四主干像素电极，所述第三主干像素电极和所述第四主干像素电极相交，并形成有多个液晶配向区；The main electrode of the second pixel electrode unit includes a third main pixel electrode and a fourth main pixel electrode, and the third main pixel electrode and the fourth main pixel electrode intersect and form a plurality of liquid crystal alignment regions;
    第三像素电极单元主干电极包括第五主干像素电极和第六主干像素电极，所述第五主干像素电极和所述第六主干像素电极相交，并形成有多个液晶配向区。The main electrode of the third pixel electrode unit includes a fifth main pixel electrode and a sixth main pixel electrode. The fifth main pixel electrode and the sixth main pixel electrode intersect and form a plurality of liquid crystal alignment regions.
  6. 根据权利要求5所述的像素电极单元，其中，所述第一主干像素电极和所述第二主干像素电极相互垂直，并形成有四个液晶配向区；The pixel electrode unit according to claim 5, wherein the first trunk pixel electrode and the second trunk pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed;
    所述第三主干像素电极和所述第四主干像素电极相互垂直，并形成有四个液晶配向区；The third trunk pixel electrode and the fourth trunk pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed;
    所述第五主干像素电极和和所述第六主干像素电极相互垂直，并形成有四个液晶配向区。The fifth main pixel electrode and the sixth main pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed.
  7. 根据权利要求5所述的像素电极单元，其中，第一像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第一主干像素电极和所述第二主干像素电极之一连接；The pixel electrode unit according to claim 5, wherein the first pixel electrode unit further comprises a plurality of branch electrodes, and one end of each branch electrode is at least connected to one of the first and second main pixel electrodes.一 连接 ； A connection;
    第二像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第三主干像素电极和所述第四主干像素电极之一连接；The second pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the third trunk pixel electrode and the fourth trunk pixel electrode;
    第三像素电极单元还包括多个支干电极，各个支干电极的一端至少与所述第五主干像素电极和所述第六主干像素电极之一连接。The third pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the fifth trunk pixel electrode and the sixth trunk pixel electrode.
  8. 根据权利要求7所述的像素电极单元，其中，第一像素电极单元的支干电极的宽度为W r，第二像素电极单元的支干电极的电极宽度为W g，第三像素电极单元的支干电极的电极宽度为W b，W r＞W g＞W b。 The pixel electrode unit according to claim 7, wherein the width of the branch electrode of the first pixel electrode unit is W r , the electrode width of the branch electrode of the second pixel electrode unit is W g , and The electrode width of the branch electrode is W b , W r > W g > W b .
  9. 根据权利要求7所述的像素电极单元，其中，第一像素电极单元的支干电极各个位置处的宽度相等，第二像素电极单元的支干电极各个位置处的宽度相等，第三像素电极单元的支干电极各个位置处的宽度相等。The pixel electrode unit according to claim 7, wherein the widths of the branch electrodes of the first pixel electrode unit are equal at each position, the widths of the branch electrodes of the second pixel electrode unit are equal at each position, and the third pixel electrode unit The width of the branch electrodes at each position is equal.
  10. 根据权利要求7所述的像素电极单元，其中，支干电极相对于与之连接的主干电极呈一倾斜角度排列。The pixel electrode unit according to claim 7, wherein the branch electrodes are arranged at an oblique angle with respect to the main electrode connected thereto.
  11. 根据权利要求10所述的像素电极单元，其中，所述倾斜角度的绝对值为0°-45°。The pixel electrode unit according to claim 10, wherein an absolute value of the tilt angle is 0 ° -45 °.
  12. 根据权利要求10所述的像素电极单元，其中，所述支干电极沿倾斜角度方向延伸，根据支干电极延伸方向的不同而形成配向方向各相异的液晶配向区。The pixel electrode unit according to claim 10, wherein the branch electrodes extend in an oblique angle direction, and liquid crystal alignment regions having different alignment directions are formed according to different extending directions of the branch electrodes.
  13. 根据权利要求12所述的像素电极单元，其中，相邻液晶配向区的配向方向镜像对称。The pixel electrode unit according to claim 12, wherein the alignment directions of adjacent liquid crystal alignment regions are mirror-symmetrical.
  14. 根据权利要求12所述的像素电极单元，其中，在每一液晶配向区内，相邻支干电极之间具有缝隙。The pixel electrode unit according to claim 12, wherein in each liquid crystal alignment region, there is a gap between adjacent branch electrodes.
  15. 根据权利要求14所述的像素电极单元，其中，在每一液晶配向区内，沿远离该液晶配向区中心区域的方向，相邻支干电极之间的缝隙逐级减小或逐级增大。The pixel electrode unit according to claim 14, wherein in each liquid crystal alignment region, a gap between adjacent branch electrodes is gradually decreased or increased in a direction away from a center region of the liquid crystal alignment region. .
  16. 一种像素电极单元，包括：A pixel electrode unit includes:
    分别允许红、绿、蓝三种颜色的光透过的第一像素电极单元、第二像素电极单元以及第三像素电极单元；A first pixel electrode unit, a second pixel electrode unit, and a third pixel electrode unit that respectively allow light of three colors of red, green, and blue to pass through;
    其中，第一像素电极单元的主干电极的电极宽度为W R，第二像素电极单元的主干电极的电极宽度为W G，第三像素电极单元主干电极的电极宽度为W B，W R为120％W G～125％W G，W B为75％W G～80％W G； The electrode width of the main electrode of the first pixel electrode unit is W R , the electrode width of the main electrode of the second pixel electrode unit is W G , and the electrode width of the main electrode of the third pixel electrode unit is W B , and W R is 120 % W G ~ 125% W G , W B is 75% W G ~ 80% W G ;
    其中，第一像素电极单元主干电极包括第一主干像素电极和第二主干像素电极，所述第一主干像素电极和所述第二主干像素电极相交，并形成有多个液晶配向区；第二像素电极单元主干电极包括第三主干像素电极和第四主干像素电极，所述第三主干像素电极和所述第四主干像素电极相交，并形成有多个液晶配向区；第三像素电极单元主干电极包括第五主干像素电极和第六主干像素电极，所述第五主干像素电极和所述第六主干像素电极相交，并形成有多个液晶配向区。The main electrode of the first pixel electrode unit includes a first main pixel electrode and a second main pixel electrode. The first main pixel electrode and the second main pixel electrode intersect and form a plurality of liquid crystal alignment regions. The main electrode of the pixel electrode unit includes a third main pixel electrode and a fourth main pixel electrode. The third main pixel electrode intersects the fourth main pixel electrode and forms a plurality of liquid crystal alignment regions. The electrode includes a fifth main pixel electrode and a sixth main pixel electrode. The fifth main pixel electrode and the sixth main pixel electrode intersect with each other, and a plurality of liquid crystal alignment regions are formed.
  17. 一种显示面板，所述显示面板包括多个如权利要求1所述的像素电极单元。A display panel comprising a plurality of pixel electrode units according to claim 1.
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