WO2021068379A1 - 液晶显示面板及液晶显示装置 - Google Patents

液晶显示面板及液晶显示装置 Download PDF

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Publication number
WO2021068379A1
WO2021068379A1 PCT/CN2019/121418 CN2019121418W WO2021068379A1 WO 2021068379 A1 WO2021068379 A1 WO 2021068379A1 CN 2019121418 W CN2019121418 W CN 2019121418W WO 2021068379 A1 WO2021068379 A1 WO 2021068379A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
spacer
retaining wall
display panel
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Application number
PCT/CN2019/121418
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English (en)
French (fr)
Inventor
廖辉华
Original Assignee
Tcl华星光电技术有限公司
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Application filed by Tcl华星光电技术有限公司 filed Critical Tcl华星光电技术有限公司
Priority to US16/623,400 priority Critical patent/US11520187B2/en
Publication of WO2021068379A1 publication Critical patent/WO2021068379A1/zh

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Classifications

    • 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
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13394Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13396Spacers having different sizes
    • 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
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/1339Gaskets; Spacers; Sealing of cells
    • G02F1/13398Spacer materials; Spacer properties

Definitions

  • the present invention relates to the field of display technology, in particular to a liquid crystal display panel and a liquid crystal display device.
  • the surfaces of two transparent insulating substrates are arranged opposite to each other, the surfaces of the oppositely arranged substrates are formed with electrodes that generate electric fields, and liquid crystal material is injected between the substrates. Then, by applying a voltage to the electrodes on the surface of the substrate, an electric field is generated to change the arrangement direction of the liquid crystal molecules, so the amount of light passing through the transparent insulating substrate can be controlled, so as to obtain a desired display image.
  • the liquid crystal display device of the above structure usually includes a thin film transistor (Thin film transistor, TFT) is a switching element, so it is also called a thin film transistor liquid crystal display (Thin film transistor liquid crystal display). display, TFT-LCD).
  • the support is generally called a spacer, and is usually located above the data line and the scan line. It does not affect the displayed image and only provides space to prevent the upper and lower substrates from contacting.
  • the material of the spacer is a photosensitive resin such as acrylic resin, that is, a photosensitive spacer (Photo spacer, PS), the shape is spherical, columnar or trapezoid, formed by photolithography process.
  • the current liquid crystal panel will simulate the reliability of actual use in a high temperature environment.
  • the panel is placed vertically, and the volume of the liquid crystal will expand at high temperature, resulting in a gap between the liquid crystal layer of the panel (Cell GAP) becomes larger, and when the liquid crystal panel is placed vertically, the liquid crystal material will accumulate at the bottom of the liquid crystal panel due to gravity, resulting in an abnormally large gap between the local liquid crystal layers, uneven brightness of the panel, and gravitational chromatic aberration.
  • the embodiments of the present invention provide a liquid crystal display panel and a liquid crystal display device, which can prevent part of the liquid crystal from flowing to the bottom of the liquid crystal panel due to gravity to gather, so as to solve the problem that the existing liquid crystal material may accumulate to the bottom of the liquid crystal panel due to gravity, causing local The gap of the liquid crystal layer is abnormally large, the panel brightness is uneven, and the technical problem of gravity mura phenomenon occurs.
  • the present application provides a liquid crystal display panel, the liquid crystal display panel is provided with a display area and a non-display area, and the liquid crystal display panel includes:
  • the substrate includes a first substrate and a second substrate, and the first substrate and the second substrate are disposed opposite to each other;
  • a plurality of spacers including a plurality of first spacers and a plurality of second spacers;
  • the first spacer is arranged in the non-display area, at least a part of the area is in contact with the first substrate and the second substrate;
  • the second spacer is arranged between the first spacer and the display area
  • the retaining wall is arranged between the first spacer and the second spacer or between the second spacer and the second spacer.
  • the retaining wall is arranged in the non-display area.
  • the height of the retaining wall is lower than the height of the first spacer.
  • the height of the retaining wall is lower than the height of the second spacer.
  • the retaining wall includes at least two layers of retaining walls.
  • the height between the at least two layers of retaining walls is the same.
  • the distance between the at least two layers of retaining walls and the bottom of the liquid crystal display panel and the height of the retaining wall satisfy the following formula:
  • D is the distance between the retaining wall and the bottom of the liquid crystal display panel
  • H is the height of the retaining wall
  • A is a preset fixed value.
  • the material of the retaining wall is a photoresist material.
  • the cross-sectional shape of the retaining wall is circular, rectangular, triangular or trapezoidal.
  • the width of the retaining wall is smaller than the width of the first spacer and the second spacer.
  • the present application provides a liquid crystal display device.
  • the liquid crystal display device includes a liquid crystal display panel provided with a display area and a non-display area, and the liquid crystal display device includes:
  • the substrate includes a first substrate and a second substrate, and the first substrate and the second substrate are disposed opposite to each other;
  • a plurality of spacers including a plurality of first spacers and a plurality of second spacers;
  • the first spacer is arranged in the non-display area, at least a part of the area is in contact with the first substrate and the second substrate;
  • the second spacer is arranged between the first spacer and the display area
  • the retaining wall is arranged between the first spacer and the second spacer or between the second spacer and the second spacer.
  • the retaining wall is arranged in the non-display area.
  • the height of the retaining wall is lower than the height of the first spacer.
  • the height of the retaining wall is lower than the height of the second spacer.
  • the retaining wall includes at least two layers of retaining walls.
  • the height between the at least two layers of retaining walls is the same.
  • the distance between the at least two layers of retaining walls and the bottom of the liquid crystal display panel and the height of the retaining wall satisfy the following formula:
  • D is the distance between the retaining wall and the bottom of the liquid crystal display panel
  • H is the height of the retaining wall
  • A is a preset fixed value.
  • the material of the retaining wall is a photoresist material.
  • the cross-sectional shape of the retaining wall is circular, rectangular, triangular or trapezoidal.
  • the width of the retaining wall is smaller than the width of the first spacer and the second spacer.
  • the liquid crystal display panel of the present invention adds at least a section of barrier between the spacer and the spacer, and the barrier wall can be used without affecting the characteristics of the spacer and the liquid crystal.
  • the light-transmitting effect of the display panel does not need to add other manufacturing processes.
  • the retaining wall blocks part of the liquid crystal from flowing to the bottom of the LCD panel due to gravity to gather, thereby improving the gap between the liquid crystal layers and the panel brightness
  • the uniformity of the gravitational chromatic aberration alleviates the phenomenon of gravitational chromatic aberration and improves the display effect of the product.
  • FIG. 1 is a schematic diagram of a cross-sectional structure of a liquid crystal display panel in the prior art
  • FIG. 2 is a schematic diagram of a cross-sectional structure of an embodiment of a liquid crystal display panel in an embodiment of the present invention
  • FIG. 3 is a schematic cross-sectional structure diagram of another embodiment of the liquid crystal display panel in the embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional structure diagram of another embodiment of the liquid crystal display panel in the embodiment of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined with “first” and “second” may explicitly or implicitly include one or more of the features.
  • “plurality” means two or more than two, unless otherwise specifically defined.
  • FIG. 1 it is a schematic cross-sectional structure diagram of a liquid crystal display panel in the prior art.
  • the liquid crystal display panel is provided with a display area and a non-display area.
  • the liquid crystal display panel includes a color film substrate 101, an array substrate 102,
  • the main spacer 103, the auxiliary spacer 104, the liquid crystal 105, the main spacer 103 is disposed in the non-display area, the auxiliary spacer 104 is disposed between the main spacer 103 and the display area, so
  • the liquid crystal 105 is filled between the main spacer 103 and the auxiliary spacer 104, and the color filter substrate 101 is arranged opposite to the array substrate 102.
  • the liquid crystal display panel will simulate the reliability of actual use under high temperature environment.
  • the volume of the liquid crystal 105 When the liquid crystal display panel is placed vertically, the volume of the liquid crystal 105 will expand at a high temperature, causing the liquid crystal layer gap (also called cell gap) of the liquid crystal display panel to become larger, and when the liquid crystal display panel When placed vertically, the liquid crystal 105 will accumulate to the bottom of the liquid crystal display panel due to gravity, resulting in an abnormally large gap between the local liquid crystal layers, uneven brightness and darkness of the panel, and a phenomenon of gravitational chromatic aberration/unevenness.
  • the liquid crystal layer gap also called cell gap
  • an embodiment of the present invention provides a liquid crystal display panel and a liquid crystal display panel. Display device. Detailed descriptions are given below.
  • an embodiment of the present invention provides a liquid crystal display panel.
  • the liquid crystal display panel is provided with a display area and a non-display area.
  • the liquid crystal display panel includes a substrate including a first substrate and a second substrate.
  • the substrate is disposed opposite to the second substrate; a plurality of spacers, the plurality of spacers include a plurality of first spacers and a plurality of second spacers; the first spacers are disposed in the non-display area, at least Part of the area is in contact with the first substrate and the second substrate; a second spacer is arranged between the first spacer and the display area; a retaining wall, the retaining wall is arranged on the first Between the spacer and the second spacer or between the second spacer and the second spacer.
  • FIG. 2 it is a schematic diagram of a cross-sectional structure of an embodiment of a liquid crystal display panel in an embodiment of the present invention.
  • the liquid crystal display panel is provided with a display area and a non-display area.
  • the liquid crystal display panel includes: a substrate, including a first A substrate 201 and a second substrate 202, the first substrate 201 and the second substrate 202 are disposed opposite to each other; a plurality of spacers, the plurality of spacers include a plurality of first spacers and a plurality of second spacers;
  • the first spacer 203 and the first spacer 213 are arranged in the non-display area, and at least a part of the area is in contact with the first substrate 201 and the second substrate 202; the second spacer 204
  • the second spacer 214 is arranged between the first spacer 203 and the display area; the retaining wall 206 is arranged between the first spacer 203 and the second interval Between the spacers 204, between the second
  • the passage between the first spacer 203 and the second spacer 204, between the second spacer 204 and the second spacer 214, and the first spacer 213 The retaining wall 206 is added between the second spacer 214 (although 206 is only marked in one shaded place in the figure, as can be seen from the foregoing, all three shaded places can be referred to), so that the liquid crystal display panel is vertical.
  • the retaining wall 206 blocks part of the liquid crystal from flowing to the bottom of the liquid crystal display panel due to gravity, improving the gap between the liquid crystal layer and the uniformity of the panel brightness, alleviating the phenomenon of gravitational chromatic aberration, and improving the display effect of the product.
  • the first spacer 203 and the second spacer 204 are disposed between the first substrate 201 and the second substrate 202, and the first spacer 203 It plays a role of supporting the substrate gap with the second spacer 204 and improves the uniformity of the box thickness in the seal area.
  • the height of the first spacer 203 is 2um ⁇ 5um, preferably 2.2um ⁇ 3um, most preferably
  • the height of the second spacer 204 is 1um ⁇ 3um, preferably 2um ⁇ 2.5um, and most preferably 2.12um; in order not to affect the distance between the first spacer 203 and the second spacer 204
  • Characteristics preferably, the height of the retaining wall 206 is lower than the height of the first spacer 203. Similarly, it is understandable that the height of the retaining wall 206 is lower than the height of the second spacer 204.
  • the barrier wall 206 is disposed in the non-display area, which can prevent the barrier wall 206 from affecting the light transmission effect of the liquid crystal display panel.
  • the retaining wall includes at least two layers of retaining walls.
  • the height between the at least two layers of retaining walls is the same, as shown in FIG. 3, which is a schematic cross-sectional structure diagram of another embodiment of the liquid crystal display panel in the embodiment of the present invention.
  • the multi-layer retaining wall These are the retaining wall 206, the retaining wall 216, and the retaining wall 226, and the heights of the retaining wall 206, the retaining wall 216, and the retaining wall 226 are all the same.
  • this embodiment adopts a multi-layer retaining wall, compared with a single-layer retaining wall, the blocking effect is better. Because of the less liquid crystal flowing downward due to gravity, the display effect of the liquid crystal display panel is better; and the different layers of the retaining wall
  • the height of the retaining wall 206 is the same, which greatly reduces the process difficulty and improves the production efficiency.
  • the height of the retaining wall 206 is 0.5um ⁇ 2.7um, preferably 1um ⁇ 1.9um. In this preferred range, the retaining wall 206 can reach the barrier. The effect is best and does not produce support at the same time.
  • the retaining wall includes at least two layers of retaining walls, and the distance between the at least two layers of retaining walls and the bottom of the liquid crystal display panel is the same as that of the retaining wall.
  • FIG. 4 it is a schematic cross-sectional structure diagram of another embodiment of the liquid crystal display panel in the embodiment of the present invention.
  • the multi-layer retaining walls are the retaining wall 206, the retaining wall 216, and the retaining wall 226, respectively.
  • the height of the retaining wall 206 is H1, the distance from the bottom is D1, the height of the retaining wall 216 is H2, the distance from the bottom is D2, the height of the retaining wall 226 is H3, and the distance from the bottom is D3, where H1>H2 >H3, D1 ⁇ D2 ⁇ D3.
  • the width of the retaining wall 206 is also smaller than the width of the first spacer 203 and the second spacer 204, and the width of the first spacer 203 and the second spacer 204 is also called the critical dimension ( Critical Dimension, CD for short), the CD value of the first spacer 203 and the second spacer 204 is 25um, and the width of the retaining wall 206 is 10um-25um, preferably 20um.
  • the material of the retaining wall 206 is a photoresist material
  • the first spacer 203 and the second spacer 204 in the prior art are both The photoresist materials, but with different heights, respectively constitute the main spacer and the auxiliary spacer, which can pass through the two transmittances of different regions of the same mask and be formed at one time by the same process.
  • all The material of the retaining wall 206 is also a photoresist material.
  • the mask can be continuously optimized without adding other manufacturing processes, so that there are three transmittances in different areas of the mask, which can be used
  • the first spacer 203, the second spacer 204, and the retaining wall 206 with different heights can be manufactured at one time in the same manufacturing process, which can improve production efficiency.
  • the cross-sectional shapes of the first spacer 203, the second spacer 204, and the retaining wall 206 include, but are not limited to, a circle, a rectangle, a triangle, or a trapezoid, so as to facilitate actual production, and Good sealing performance shall prevail.
  • the embodiment of the present invention also provides a liquid crystal display device.
  • the liquid crystal display device includes the liquid crystal display device as described in the above embodiment. Display panel.
  • liquid crystal display panel in the embodiment of the present invention may also include any other necessary structures as required. The place is not limited.
  • the performance of the liquid crystal display device is further improved.
  • each of the above units or structures can be implemented as independent entities, or can be combined arbitrarily, and implemented as the same or several entities.
  • specific implementation of each of the above units or structures please refer to the previous method embodiments. No longer.

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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)

Abstract

一种液晶显示面板及液晶显示装置,液晶显示面板包括:基板,包括第一基板(201)和第二基板(202),多个间隔物,多个间隔物包括多个第一间隔物(203,213)以及多个第二间隔物(204,214);挡墙(206),挡墙设置于第一间隔物(203)与第二间隔物(204)之间或第二间隔物(204)与第二间隔物(214)之间。

Description

液晶显示面板及液晶显示装置
本申请要求于2019年10月11日提交中国专利局、申请号为201910963794.4、发明名称为“液晶显示面板及液晶显示装置”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。
技术领域
本发明涉及显示技术领域,尤其涉及一种液晶显示面板及液晶显示装置。
背景技术
在液晶显示装置的液晶显示面板中,两个透明绝缘基板的表面彼此相对设置,相对设置的基板表面形成有产生电场的电极,在基板之间注入液晶材料。然后通过向所述基板表面的电极施加电压而产生电场改变液晶分子的排列方向,因此可以控制透过透明绝缘基板的光量,从而获得期望显示的图象。上述构造的液晶显示装置通常包括薄膜晶体管(Thin film transistor,TFT)作为开关元件,因此亦称为薄膜晶体管液晶显示器(Thin film transistor liquid crystal display,TFT-LCD)。
为了使液晶能够注入到显示器得上下基板之间,需要在其间设置支撑物以提供所需的液晶盒间隙(Cell GAP)。该支撑物一般称为间隔物(spacer),通常位于数据线和扫描线上方,不影响显示图象,仅提供空间,以防止上下基板接触。通常间隔物的材料为例如丙烯酸树脂之类的光敏树脂,即感光性间隔物(Photo spacer,PS),形状为球形、柱形或梯形,通过光刻工艺形成。
技术问题
目前的液晶面板会在高温环境下来模拟实际使用的可靠性,面板为竖直放置,液晶在高温下体积会发生膨胀,导致面板液晶层间隙(Cell GAP)变大,且当液晶面板垂直放置时,液晶材料就会由于重力而聚积到液晶面板的底部,造成局部液晶层间隙异常偏大,面板亮暗不均,形成重力色差的现象。
技术解决方案
本发明实施例提供一种液晶显示面板及液晶显示装置,能够阻挡部分液晶因重力作用流动至液晶面板底部聚集,以解决现有的液晶材料就会由于重力而聚积到液晶面板的底部,造成局部液晶层间隙异常偏大,面板亮暗不均,发生重力色差/不均匀(gravity mura)现象的技术问题。
为解决上述问题,本申请提供一种液晶显示面板,所述液晶显示面板中设置有显示区和非显示区,所述液晶显示面板包括:
基板,包括第一基板和第二基板,所述第一基板与所述第二基板相对设置;
多个间隔物,所述多个间隔物包括多个第一间隔物以及多个第二间隔物;
所述第一间隔物,设置于所述非显示区,至少部分区域与所述第一基板和所述第二基板接触;
所述第二间隔物,设置于所述第一间隔物与所述显示区之间;
挡墙,所述挡墙设置于所述第一间隔物与所述第二间隔物之间或所述第二间隔物与所述第二间隔物之间。
在本发明一些实施例中,所述挡墙设置于所述非显示区。
在本发明一些实施例中,所述挡墙的高度低于所述第一间隔物的高度。
在本发明一些实施例中,所述挡墙的高度低于所述第二间隔物的高度。
在本发明一些实施例中,所述挡墙包括至少两层挡墙。
在本发明一些实施例中,所述至少两层挡墙之间的高度相同。
在本发明一些实施例中,所述至少两层挡墙距所述液晶显示面板底部的距离与所述挡墙的高度满足如下公式:
H=A/D;
其中,D为所述挡墙距所述液晶显示面板底部的距离,H为所述挡墙的高度,A为预设的固定值。
在本发明一些实施例中,所述挡墙的材料为光阻材料。
在本发明一些实施例中,所述挡墙的截面形状为圆形、矩形、三角形或梯形。
在本发明一些实施例中,所述挡墙的宽度小于所述第一间隔物和所述第二间隔物的宽度。
本申请提供还一种液晶显示装置,所述液晶显示装置包括设置有显示区和非显示区的液晶显示面板,所述液晶显示装置包括:
基板,包括第一基板和第二基板,所述第一基板与所述第二基板相对设置;
多个间隔物,包括多个第一间隔物以及多个第二间隔物;
所述第一间隔物,设置于所述非显示区,至少部分区域与所述第一基板和所述第二基板接触;
所述第二间隔物,设置于所述第一间隔物与所述显示区之间;
挡墙,所述挡墙设置于所述第一间隔物与所述第二间隔物之间或所述第二间隔物与所述第二间隔物之间。
在本发明一些实施例中,所述挡墙设置于所述非显示区。
在本发明一些实施例中,所述挡墙的高度低于所述第一间隔物的高度。
在本发明一些实施例中,所述挡墙的高度低于所述第二间隔物的高度。
在本发明一些实施例中,所述挡墙包括至少两层挡墙。
在本发明一些实施例中,所述至少两层挡墙之间的高度相同。
在本发明一些实施例中,所述至少两层挡墙距所述液晶显示面板底部的距离与所述挡墙的高度满足如下公式:
H=A/D;
其中,D为所述挡墙距所述液晶显示面板底部的距离,H为所述挡墙的高度,A为预设的固定值。
在本发明一些实施例中,所述挡墙的材料为光阻材料。
在本发明一些实施例中,所述挡墙的截面形状为圆形、矩形、三角形或梯形。
在本发明一些实施例中,所述挡墙的宽度小于所述第一间隔物和所述第二间隔物的宽度。
有益效果
相较于现有的液晶显示面板及液晶显示装置,本发明的液晶显示面板通过在间隔物与间隔物之间,增加至少一段挡墙,所述挡墙可以在不影响间隔物的特性和液晶显示面板的透光效果,且不需要增加其他制程的同时,使液晶显示面板竖放时,所述挡墙阻挡部分液晶因重力作用流动至液晶显示面板底部聚集,改善了液晶层间隙和面板亮度的均匀性,缓解了出现重力色差现象,提升了产品的显示效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述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发明的一些实施例,对于本领域技术人员来讲,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他的附图。
图1是现有技术中的液晶显示面板的剖面结构示意图;
图2是本发明实施例中液晶显示面板的一个实施例剖面结构示意图;
图3是本发明实施例中液晶显示面板的另一个实施例剖面结构示意图;及
图4是本发明实施例中液晶显示面板的另一个实施例剖面结构示意图。
本发明的实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
在本申请中,“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本发明,给出了以下描述。在以下描述中,为了解释的目的而列出了细节。应当明白的是,本领域普通技术人员可以认识到,在不使用这些特定细节的情况下也可以实现本发明。在其它实例中,不会对公知的结构和过程进行详细阐述,以避免不必要的细节使本发明的描述变得晦涩。因此,本发明并非旨在限于所示的实施例,而是与符合本申请所公开的原理和特征的最广范围相一致。
如图1所示,为现有技术中的液晶显示面板的剖面结构示意图,所述液晶显示面板中设置有显示区和非显示区,所述液晶显示面板包括彩膜基板101、阵列基板102、主要间隔物103、辅助间隔物104、液晶105,所述主要间隔物103设置于所述非显示区,所述辅助间隔物104设置于所述主要间隔物103与所述显示区之间,所述主要间隔物103与所述辅助间隔物104之间填充有所述液晶105,所述彩膜基板101与所述阵列基板102相对设置,目前液晶显示面板会在高温环境下来模拟实际使用的可靠性,所述液晶显示面板为竖直放置,所述液晶105在高温下体积会发生膨胀,导致所述液晶显示面板的液晶层间隙(又称盒间隙)变大,且当所述液晶显示面板垂直放置时,所述液晶105就会由于重力而聚积到所述液晶显示面板的底部,造成局部液晶层间隙异常偏大,面板亮暗不均,形成重力色差/不均匀的现象。
基于此,研究发现,所述液晶105受到重力作用是从所述主要间隔物103与所述辅助间隔物104之间的容纳空间向下流动,于是本发明实施例提供一种液晶显示面板及液晶显示装置。以下分别进行详细说明。
首先,本发明实施例提供一种液晶显示面板,所述液晶显示面板中设置有显示区和非显示区,所述液晶显示面板包括:基板,包括第一基板和第二基板,所述第一基板与所述第二基板相对设置;多个间隔物,所述多个间隔物包括多个第一间隔物以及多个第二间隔物;第一间隔物,设置于所述非显示区,至少部分区域与所述第一基板和所述第二基板接触;第二间隔物,设置于所述第一间隔物与所述显示区之间;挡墙,所述挡墙设置于所述第一间隔物与所述第二间隔物之间或所述第二间隔物与所述第二间隔物之间。
如图2所示,为本发明实施例中液晶显示面板的一个实施例剖面结构示意图,所述液晶显示面板中设置有显示区和非显示区,所述液晶显示面板包括:基板,包括第一基板201和第二基板202,所述第一基板201与所述第二基板202相对设置;多个间隔物,所述多个间隔物包括多个第一间隔物以及多个第二间隔物;所述第一间隔物203、所述第一间隔物213,设置于所述非显示区,至少部分区域与所述第一基板201和所述第二基板202接触;所述第二间隔物204、所述第二间隔物214,设置于所述第一间隔物203与所述显示区之间;挡墙206,所述挡墙206设置于所述第一间隔物203与所述第二间隔物204之间、所述第二间隔物204与所述第二间隔物214之间以及所述第一间隔213与所述第二间隔物214之间。
本发明实施例中,通过在所述第一间隔物203与所述第二间隔物204之间、所述第二间隔物204与所述第二间隔物214之间以及所述第一间隔213与所述第二间隔物214之间增加了所述挡墙206(图中206虽仅标在一个阴影处,由前文可知,三个阴影处均可指代),使所述液晶显示面板竖放时,所述挡墙206阻挡部分液晶因重力作用流动至所述液晶显示面板底部聚集,改善了液晶层间隙和面板亮度的均匀性,缓解了出现重力色差现象,提升了产品的显示效果。
在液晶显示面板中,一般情况下,所述第一间隔物203与所述第二间隔物204设置在所述第一基板201和所述第二基板202之间,所述第一间隔物203与所述第二间隔物204起到支撑基板间隙的作用,提高了框胶区盒厚的均一性,所述第一间隔物203的高度为2um~5um,优选为2.2um~3um,最优选为2.52um,所述第二间隔物204的高度为1um~3um,优选为2um~2.5um,最优选为2.12um;为了不影响所述第一间隔物203与所述第二间隔物204的特性,优选地,所述挡墙206的高度低于所述第一间隔物203的高度,同理可理解地,所述挡墙206的高度低于所述第二间隔物204的高度。
在本实施例中,所述挡墙206设置于所述非显示区,可以防止所述挡墙206影响液晶显示面板的透光效果。
当然,本发明实施例中,可以对所述挡墙206的阻挡效果继续优化,因此,在上述实施例的基础上,在本发明的另一个实施例中,所述挡墙包括至少两层挡墙,且所述至少两层挡墙之间的高度相同,如图3所示,为本发明实施例中液晶显示面板的另一个实施例剖面结构示意图,在本实施例中,多层挡墙分别为挡墙206、挡墙216以及挡墙226,所述挡墙206、所述挡墙216以及所述挡墙226的高度均相同。本实施例由于采用多层挡墙,相较于单层挡墙,阻挡效果更佳,因重力向下流动的液晶更少,所述液晶显示面板的显示效果更佳;而不同层挡墙之间的高度相同,大大减少了工艺难度,提高了生产效率,所述挡墙206的高度为0.5um~2.7um,优选为1um~1.9um,此优选范围中,所述挡墙206可达到阻挡效果最佳且同时不产生支撑作用。
在上述实施例的基础上,在本发明的另一个实施例中,所述挡墙包括至少两层挡墙,且所述至少两层挡墙距所述液晶显示面板底部的距离与所述挡墙206的高度满足如下公式:H=A/D;其中,D为所述挡墙206距所述液晶显示面板底部的距离,H为所述挡墙206的高度,A为预设的固定值。
如图4所示,为本发明实施例中液晶显示面板的另一个实施例剖面结构示意图,在本实施例中,多层挡墙分别为挡墙206、挡墙216以及挡墙226,所述挡墙206的高度为H1、距底部距离为D1,所述挡墙216的高度为H2、距底部距离为D2,所述挡墙226的高度为H3、距底部距离为D3,其中H1>H2>H3,D1<D2<D3。
由于液晶所受液体压强与所在深度成正比,越接近所述液晶显示面板的底部,其受重力引起液体的压力越大,所述挡墙206的高度H可以随着距底部距离D缩小而不断增加,即H在0.5um~2.7um的范围内等比例渐变,优选地,H在1um~1.9um的范围内等比例渐变。
同时,所述挡墙206的宽度,也小于所述第一间隔物203和所述第二间隔物204的宽度,第一间隔物203和所述第二间隔物204的宽度又叫关键尺寸(Critical Dimension,简称CD),所述第一间隔物203和所述第二间隔物204的CD值为25um,所述挡墙206的宽度为10um~25um,优选为20um。
在上述实施例的基础上,本发明的另一个实施例中,所述挡墙206的材料为光阻材料,现有技术中所述第一间隔物203与所述第二间隔物204均为光阻材料,但高度不同,分别构成主要间隔物和辅助间隔物,可通过同一掩膜版(mask)的不同区域的两种透过率,利用同一道制程一次成型,本实施例中,所述挡墙206的材料也为光阻材料,显而易见地,可在不增加其他制程的情况下,通过对掩膜版继续优化,使得掩膜版的不同区域存在三种透过率,即可利用同一道制程一次制得高度不同的所述第一间隔物203、所述第二间隔物204以及所述挡墙206,可以提高生产效率。
在另一个实施例中,所述第一间隔物203、所述第二间隔物204以及所述挡墙206的截面形状包括但不限于圆形、矩形、三角形或梯形,以便于实际生产,且密封性良好为准。
为了更好实施本发明实施例中液晶显示面板,在液晶显示面板的基础之上,本发明实施例中还提供一种液晶显示装置,所述液晶显示装置包括如上述实施例中所述的液晶显示面板。
需要说明的是,上述显示面板实施例中仅描述了上述结构,可以理解的是,除了上述结构之外,本发明实施例液晶显示面板中,还可以根据需要包括任何其他的必要结构,具体此处不作限定。
通过采用如上实施例中描述的液晶显示面板,进一步提升了该液晶显示装置的性能。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见上文针对其他实施例的详细描述,此处不再赘述。
具体实施时,以上各个单元或结构可以作为独立的实体来实现,也可以进行任意组合,作为同一或若干个实体来实现,以上各个单元或结构的具体实施可参见前面的方法实施例,在此不再赘述。
以上各个操作的具体实施可参见前面的实施例,在此不再赘述。
以上对本发明实施例所提供的一种液晶显示面板及液晶显示装置进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时,对于本领域的技术人员,依据本发明的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。

Claims (20)

  1. 一种液晶显示面板,所述液晶显示面板中设置有显示区和非显示区,所述液晶显示面板包括:
    基板,包括第一基板和第二基板,所述第一基板与所述第二基板相对设置;
    多个间隔物,所述多个间隔物包括多个第一间隔物以及多个第二间隔物;
    所述第一间隔物,设置于所述非显示区,至少部分区域与所述第一基板和所述第二基板接触;
    所述第二间隔物,设置于所述第一间隔物与所述显示区之间;
    挡墙,所述挡墙设置于所述第一间隔物与所述第二间隔物之间或所述第二间隔物与所述第二间隔物之间。
  2. 根据权利要求1所述的液晶显示面板,其中,所述挡墙设置于所述非显示区。
  3. 根据权利要求1所述的液晶显示面板,其中,所述挡墙的高度低于所述第一间隔物的高度。
  4. 根据权利要求1所述的液晶显示面板,其中,所述挡墙的高度低于所述第二间隔物的高度。
  5. 根据权利要求1所述的液晶显示面板,其中,所述挡墙包括至少两层挡墙。
  6. 根据权利要求5所述的液晶显示面板,其中,所述至少两层挡墙之间的高度相同。
  7. 根据权利要求5所述的液晶显示面板,其中,所述至少两层挡墙距所述液晶显示面板底部的距离与所述挡墙的高度满足如下公式:
    H=A/D;
    其中,D为所述挡墙距所述液晶显示面板底部的距离,H为所述挡墙的高度,A为预设的固定值。
  8. 根据权利要求1所述的液晶显示面板,其中,所述挡墙的材料为光阻材料。
  9. 根据权利要求1所述的液晶显示面板,其中,所述挡墙的截面形状为圆形、矩形、三角形或梯形。
  10. 根据权利要求1所述的液晶显示面板,其中,所述挡墙的宽度小于所述第一间隔物和所述第二间隔物的宽度。
  11. 一种液晶显示装置,包括设置有显示区和非显示区的液晶显示面板,所述液晶显示装置包括:
    基板,包括第一基板和第二基板,所述第一基板与所述第二基板相对设置;
    多个间隔物,包括多个第一间隔物以及多个第二间隔物;
    所述第一间隔物,设置于所述非显示区,至少部分区域与所述第一基板和所述第二基板接触;
    所述第二间隔物,设置于所述第一间隔物与所述显示区之间;
    挡墙,所述挡墙设置于所述第一间隔物与所述第二间隔物之间或所述第二间隔物与所述第二间隔物之间。
  12. 根据权利要求11所述的液晶显示装置,其中,所述挡墙设置于所述非显示区。
  13. 根据权利要求11所述的液晶显示装置,其中,所述挡墙的高度低于所述第一间隔物的高度。
  14. 根据权利要求11所述的液晶显示装置,其中,所述挡墙的高度低于所述第二间隔物的高度。
  15. 根据权利要求11所述的液晶显示装置,其中,所述挡墙包括至少两层挡墙。
  16. 根据权利要求15所述的液晶显示装置,其中,所述至少两层挡墙之间的高度相同。
  17. 根据权利要求15所述的液晶显示装置,其中,所述至少两层挡墙距所述液晶显示面板底部的距离与所述挡墙的高度满足如下公式:
    H=A/D;
    其中,D为所述挡墙距所述液晶显示面板底部的距离,H为所述挡墙的高度,A为预设的固定值。
  18. 根据权利要求11所述的液晶显示装置,其中,所述挡墙的材料为光阻材料。
  19. 根据权利要求11所述的液晶显示装置,其中,所述挡墙的截面形状为圆形、矩形、三角形或梯形。
  20. 根据权利要求11所述的液晶显示装置,其中,所述挡墙的宽度小于所述第一间隔物和所述第二间隔物的宽度。
PCT/CN2019/121418 2019-10-11 2019-11-28 液晶显示面板及液晶显示装置 WO2021068379A1 (zh)

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