WO2015176337A1 - 曲面液晶面板结构 - Google Patents

曲面液晶面板结构 Download PDF

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Publication number
WO2015176337A1
WO2015176337A1 PCT/CN2014/079712 CN2014079712W WO2015176337A1 WO 2015176337 A1 WO2015176337 A1 WO 2015176337A1 CN 2014079712 W CN2014079712 W CN 2014079712W WO 2015176337 A1 WO2015176337 A1 WO 2015176337A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
substrate
crystal panel
curved liquid
spacer
Prior art date
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PCT/CN2014/079712
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English (en)
French (fr)
Inventor
吴川
郭晋波
罗时勋
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/378,641 priority Critical patent/US20160231607A1/en
Publication of WO2015176337A1 publication Critical patent/WO2015176337A1/zh

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Classifications

    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a curved liquid crystal panel structure. Background technique
  • LCD Liquid Crystal Display
  • PDA personal digital assistant
  • digital camera computer screen or laptop screen.
  • a liquid crystal display device includes a housing, a liquid crystal panel disposed in the housing, and a backlight module disposed in the housing (the backlight module is configured by a thin film transistor Array Substrate).
  • TFT Array Substrate is composed of a color filter substrate (Color Filter, CF and a liquid crystal layer disposed between the two substrates).
  • the working principle is to control the liquid crystal by applying a driving voltage on two glass substrates. The rotation of the liquid crystal molecules of the layer refracts the light of the backlight module to produce a picture.
  • curved liquid crystal displays can provide the best viewing effect from the edge to the edge, while ordinary liquid crystal displays are on the edge of the screen.
  • the ability to present aspects has been relatively unsatisfactory.
  • the curved LCD screen has an arc-shaped design that provides a wide panoramic image effect, providing the same visual enjoyment both in the center of the screen and around the edges, and reduces off-axis viewing when viewed at close range. Distortion.
  • the curved LCD display will allow the user to extend the viewing distance for a better viewing experience. Therefore, compared with ordinary liquid crystal displays, curved liquid crystal displays have great advantages: 1. Product differentiation; 2. Wider viewing angle; 3. Reduce distortion in close-range viewing.
  • the curved LCD panel is the core component of the curved LCD.
  • the conventional curved liquid crystal panel structure includes a TFT substrate 100, a CF substrate 200 provided corresponding to the TFT substrate, a spacer 300 provided between the TFT substrate 100 and the CF substrate 200, and a TFT.
  • the spacer 300 is used to support a cell thickness formed between the TFT substrate 100 and the CF substrate 200.
  • the spacers 300 are disposed between the TFT substrate 100 and the CF substrate 200 at equal heights, equal densities, and the like, such as CD (critical Dimension) values.
  • the curved liquid crystal panel has a certain The curvature of the curved TFT substrate 100 and the CF substrate 200 will be relatively slid, and the curved liquid crystal panel will generate the left and right sliding stresses respectively from the center, and the stress gradually decreases from the center to the both sides, and the TFT substrate 100
  • the stress that is pressed against the CF substrate 200 is also The distance from the center to the sides gradually decreases, and the stress in the middle portion of the curved liquid crystal panel is greater than the stress on the two sides, but the spacer 300 is disposed in the same height, equal density, and other CD values, resulting in the middle portion of the curved liquid crystal panel.
  • the deformation amount is larger than the deformation amount of the two sides, so that the box thickness of the middle portion is smaller than the thickness of the box on both sides, causing uneven thickness distribution of the liquid crystal layer, and the light transmittance and response time of the intermediate portion and the two sides are inconsistent, resulting in
  • the curved LCD panel displays blurred images and reduced optical taste.
  • the object of the present invention is to provide a curved liquid crystal panel structure, which can ensure the uniform thickness of the liquid crystal panel of the entire curved surface, and the thickness distribution of the liquid crystal layer is uniform, so that the light transmittance and the response time are consistent, and the optical taste of the curved liquid crystal panel is improved.
  • the present invention provides a curved liquid crystal panel structure including: a TFT substrate, a CF substrate disposed corresponding to the TFT substrate, a spacer disposed between the TFT substrate and the CF substrate, and a TFT substrate and a CF substrate.
  • a liquid crystal layer, and a sealant layer disposed between the TFT substrate and the CF substrate and located at an edge thereof, the CF substrate has an intermediate portion and two side regions on both sides of the intermediate portion in a direction in which the curved liquid crystal panel is bent.
  • the intermediate region is subjected to stress greater than the two side regions, and the spacers located in the intermediate portion are disposed to withstand greater stress than the spacers located at the both side regions to maintain an equal spacing between the CF substrate and the TFT substrate.
  • the height of the spacers located in the intermediate region is higher than the height of the spacers located at the both sides.
  • the height of the spacer located in the intermediate portion gradually decreases from the center to the both sides in the direction in which the curved liquid crystal panel is bent.
  • the height of the spacers located in each side region is gradually decreased from the side closer to the intermediate portion toward the other side in the direction in which the curved liquid crystal panel is bent, or the height of the spacers in each of the side regions is equal.
  • the spacers located in the intermediate region have a higher density than the spacers located in the both regions.
  • the density of the spacers located in the intermediate portion gradually decreases from the center to the both sides in the direction in which the curved liquid crystal panel is bent.
  • the density of the spacers located in each side region is gradually decreased from the side closer to the intermediate portion to the other side in the direction in which the curved liquid crystal panel is curved, or the density of the spacers in each of the side regions is equal.
  • the CD value of the spacer located in the intermediate portion is larger than the CD value of the spacer located at both side regions.
  • the CD value of the spacer located in the middle region is in a direction in which the curved liquid crystal panel is bent, from The heart gradually decreases toward both sides.
  • the CD value of the spacer located in each side region gradually decreases from the side closer to the intermediate portion toward the other side in the direction in which the curved liquid crystal panel is bent, or the CD values of the spacers located in each side region are equal.
  • the present invention also provides a curved liquid crystal panel structure, comprising: a TFT substrate, a CF substrate disposed corresponding to the TFT substrate, a spacer disposed between the TFT substrate and the CF substrate, and a liquid crystal layer disposed between the TFT substrate and the CF substrate And a sealant layer disposed between the TFT substrate and the CF substrate and located at an edge, wherein the CF substrate has an intermediate region and two side regions on both sides of the intermediate portion in a direction in which the curved liquid crystal panel is bent, the intermediate region is subjected to The stress is greater than the two side regions, and the spacers located in the intermediate portion are disposed to withstand greater stress than the spacers located at the two side regions, so that the CF substrate and the TFT substrate are kept at equal intervals;
  • the height of the spacer located in the middle area is greater than the degree of the spacer located in the two sides.
  • the height of the spacer located in the intermediate region gradually decreases from the center to the two sides in a direction in which the curved liquid crystal panel is bent;
  • the height of the spacer located in each side region is gradually decreased in the direction in which the curved liquid crystal panel is curved, from one side to the other side toward the other side, or between the side regions
  • the height of the partitions is equal.
  • the density of the spacer located in the intermediate portion is greater than the spacer of the both sides
  • the density, or the CD value of the spacer located in the middle region is larger than the CD value of the spacers on both sides, so that the spacer located in the intermediate region can withstand greater stress than the spacer located on both sides, CF substrate and TFT
  • the substrates can be kept at equal intervals, so that the overall thickness of the curved liquid crystal panel is uniform, the thickness distribution of the liquid crystal layer is uniform, the light transmittance and the response time are consistent, the optical taste of the curved liquid crystal panel is improved, and the structure is simple and easy to implement.
  • FIG. 1 is a schematic view showing a structure of a conventional curved liquid crystal panel before bending
  • FIG. 2 is a schematic view showing a structure of a conventional curved liquid crystal panel after bending
  • 3 is a schematic view of a first embodiment of a curved liquid crystal panel structure according to the present invention
  • FIG. 4 is a schematic view showing a first embodiment of a curved liquid crystal panel structure according to the present invention
  • FIG. 6 is a schematic view showing a second embodiment of a curved liquid crystal panel structure according to the present invention after bending
  • FIG. 7 is a schematic view showing a third embodiment of a curved liquid crystal panel structure according to the present invention
  • FIG. 3 and FIG. 4 illustrate a first preferred embodiment of a curved liquid crystal panel structure according to the present invention.
  • the curved liquid crystal panel structure includes: a TFT substrate 1 , a CF substrate 3 disposed corresponding to the TFT substrate 1 , a spacer 5 disposed between the TFT substrate 1 and the CF substrate 3 , and a TFT substrate 1 and the CF substrate 3 disposed between the TFT substrate 1 and the CF substrate 3 .
  • the liquid crystal layer 7 and the sealant layer 9 provided between the TFT substrate 1 and the CF substrate 3 and located at the edge.
  • the TFT substrate 1 is used to drive liquid crystal molecules in the liquid crystal layer 7 to be deflected to select light passing through the curved liquid crystal panel, the CF substrate 3 is used for color display; and the spacer 5 is used to support the TFT.
  • the cell thickness between the substrate 1 and the CF substrate 3 is such that the liquid crystal layer 7 is uniformly distributed; the sealant layer 9 is used to encapsulate the liquid crystal layer 7 on the TFT substrate 1 and the CF substrate 3 between.
  • the CF substrate 3 has an intermediate portion 31 and side regions 33 on both sides of the intermediate portion. Since the curved liquid crystal panel is bent, a relative sliding occurs between the TFT substrate 1 and the CF substrate 3, and the curved liquid crystal panel generates a left-right sliding stress with the center as a base point, and the stress gradually decreases from the center to the both sides. At the same time, the stress which the TFT substrate 1 and the CF substrate 3 are pressed against each other also gradually decreases from the center to the both sides, so that the intermediate portion 31 is subjected to stress greater than the both side regions 33.
  • Only the spacers 51 located in the intermediate portion 31 can be placed to be subjected to greater stress than the spacers 53 located on the side regions 33, so that the CF substrate 3 and the TFT substrate 1 can be equally spaced to ensure the overall surface of the curved liquid crystal panel.
  • the box thickness is consistent.
  • the spacer 5 disposed between the TFT substrate 1 and the CF substrate 3 includes a spacer 51 located in the intermediate portion 31 and a spacer 53 located at the both side regions 33, and The height of the spacer 51 located in the intermediate portion 31 is set to be higher than the height of the spacer 53 located at the both side regions 33.
  • the height of the spacer 51 located in the intermediate portion 31 is gradually decreased from the center to the both sides in the direction in which the curved liquid crystal panel is bent to accommodate the stress gradually decreasing from the center to the both sides;
  • the height of the spacer 53 of the one side region 33 is gradually decreased from the side close to the intermediate portion 31 to the other side in the direction in which the curved liquid crystal panel is bent, or the height of the spacer 53 located in each side region 33 is equal, preferably Located in each side area
  • the height of the spacer 53 of the field 33 gradually decreases from the side close to the intermediate portion 31 to the other side in the direction in which the curved liquid crystal panel is bent.
  • the stress and the degree of compression of the TFT substrate 1 and the CF substrate 3 in the middle portion thereof are greater than the stress and the degree of compression of the TFT substrate 1 and the CF substrate 3 on both sides.
  • the height of the spacer 51 of the intermediate portion 31 is set to be higher than the height of the spacer 53 located at the both side regions 33, so that the spacer 51 of the intermediate portion 31 is located at both side regions.
  • the spacer 53 of 33 can withstand greater stress, and the CF substrate 3 and the TFT substrate 1 are kept at equal intervals, thereby ensuring uniform thickness of the curved liquid crystal panel as a whole.
  • the spacer 5' disposed between the TFT substrate 1 and the CF substrate 3 includes a spacer 5'' located at the intermediate portion 31 and a spacer 53' located at the both side regions 33, and
  • the density of the spacers 5 ⁇ located in the intermediate portion 31 is set to be larger than the density of the spacers 53' located at the both side regions 33.
  • the density of the spacers 51' located in the intermediate portion 31 gradually decreases from the center to the sides in the direction in which the curved liquid crystal panel is bent to accommodate the stress gradually decreasing from the center to the both sides;
  • the density of the spacers 53' of the one side region 33 gradually decreases from the side close to the intermediate portion 31 to the other side in the direction in which the curved liquid crystal panel is curved, or the density of the spacers 53 located in each side region 33. Equal, preferably, said each side region 33
  • the density of the spacer 53' gradually decreases from the side close to the intermediate portion 31 to the other side in the direction in which the curved liquid crystal panel is bent.
  • the stress and the degree of compression of the TFT substrate 1 and the CF substrate 3 in the middle portion thereof are greater than the stress and the degree of compression of the TFT substrate 1 and the CF substrate 3 on both sides.
  • the density of the spacers 5 ⁇ of the intermediate portion 31 is set to be higher than the density of the spacers 53 ′ located at the both side regions 33 such that the spacers 51 ′ of the intermediate regions 31 are located.
  • the spacer 53' of the both side regions 33 can withstand greater stress, and the CF substrate 3 and the TFT substrate 1 are kept at equal intervals, thereby ensuring uniform thickness of the curved liquid crystal panel as a whole.
  • the spacer 5" provided between the TFT substrate 1 and the CF substrate 3 includes a spacer 51" located in the intermediate portion 31 and a spacer 53" located in the both side regions 33, And the CD value of the spacer 51" located in the intermediate portion 31 is set to be larger than the CD value of the spacer 53" located in the both side regions 33.
  • the spacer 51 located in the intermediate portion 31" The CD value gradually decreases from the center to the both sides in the direction in which the curved liquid crystal panel is bent to accommodate the stress gradually decreasing from the center to the both sides; the CD value of the spacer 53" located in each side region 33 is curved The direction in which the liquid crystal panel is bent gradually decreases from the side closer to the intermediate portion 31 to the other side, or the CD value of the spacer 53" located in each side region 33 is equal, preferably, the The CD value of the spacer 53" of the side region 33 gradually decreases from the side close to the intermediate portion 31 to the other side in the direction in which the curved liquid crystal panel is bent.
  • the TFT substrate 1 and the CF substrate in the middle portion of the curved liquid crystal panel after bending The stress and the degree of compression are greater than the degree of stress and compression of the TFT substrate 1 and the CF substrate 3 on both sides, but the spacer of the intermediate portion 31 in the third embodiment.
  • the CD value of 51 " is set to be higher than the CD value of the spacer 53" located at the both side regions 33, so that the spacer 51 of the intermediate portion 31 can withstand a larger space than the spacer 53 located at the side regions 33"
  • the stress is maintained at an equal distance between the CF substrate 3 and the TFT substrate 1, thereby ensuring uniformity of the overall thickness of the curved liquid crystal panel.
  • the arrangement of the spacers 5 in the first, second, and third embodiments may be combined to better support the TFT substrate 1 and the CF substrate 3 to ensure a curved liquid crystal panel.
  • the overall box thickness is consistent.
  • the curved liquid crystal panel structure of the present invention has a height of the spacer located in the intermediate portion higher than the height of the spacers on the both sides, and the density of the spacer located in the intermediate portion is larger than that of the spacers on the both sides.
  • the density, or the CD value of the spacer located in the intermediate region is larger than the CD value of the spacers on both sides, so that the spacer located in the intermediate region can withstand greater stress than the spacer located at both sides, the CF substrate and the TFT substrate Can maintain equal spacing between each other, so as to ensure that the overall thickness of the curved liquid crystal panel is uniform, the thickness distribution of the liquid crystal layer is uniform, the light transmittance and response The time is consistent, the optical taste of the curved liquid crystal panel is improved, and the structure is simple and easy to implement.

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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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种曲面液晶面板结构，包括TFT基板(1)、与TFT基板(1)对应设置的CF基板(3)、设于TFT基板(1)与CF基板(3)之间的间隔物(5)、设于TFT基板(1)与CF基板(3)之间的液晶层(7)、及设于TFT基板(1)与CF基板(3)之间且位于边缘的密封胶层(9)，沿曲面液晶面板弯曲的方向，CF基板(3)具有一个中间区域(31)及位于中间区域（31）两侧的两侧区域(33)，该中间区域(31)承受的应力大于该两侧区域(33)，位于中间区域(31)的间隔物(51)设置成比位于两侧区域(33)的间隔物(53)能承受更大的应力，使CF基板(3)与TFT基板(1)之间保持等间距，保证曲面液晶面板整体的盒厚一致。提升产品信赖性。

Description

曲面液晶面板结构 技术领域
本发明涉及液晶显示领域，尤其涉及一种曲面液晶面板结构。 背景技术
液晶显示装置 ( Liquid Crystal Display , LCD )具有机身薄、 省电、 无 辐射等众多优点，得到了广泛的应用。 如：液晶电视、 移动电话、 个人数 字助理（ PDA )、 数字相机、 计算机屏幕或笔记本电脑屏幕等。
通常液晶显示装置包括壳体、 设于壳体内的液晶面板及设于壳体内的 背光模组 ( Backlight module \ 其中，液晶面板的结构主要是由一薄膜晶体 管阵歹J基板 ( Thin Film Transistor Array Substrate , TFT Array Substrate —— 彩色滤光片基板（ Color Filter ,CF 以及一配置于两基板间的液晶层 Liquid Crystal Layer )所构成，其工作原理是通过在两片玻璃基板上施加驱动电压 来控制液晶层的液晶分子的旋转，将背光模组的光线折射出来产生画面。
近年来，随着液晶显示技术的发展，各大厂商陆续的推出了曲面液晶 显示器，整体而言，曲面液晶显示器从边缘到边缘都能提供最佳的观看效 果，而普通的液晶显示器在屏幕边缘方面的呈现能力一直相对不太理想。 曲面液晶显示器整片屏幕呈弧形的设计，可提供宽阔的全景影像效果，不 论是在屏幕中央还是边缘四周，都能够带来同样的视觉享受，并且在近距 离观看时还减少了离轴观看的失真度。 此外，曲面液晶显示器会让用户的 观赏距离拉长，达到更好的观赏体验。 因此，相比于普通的液晶显示器， 曲面液晶显示器有着很大的优势： 1、 产品的差异化； 2、 更宽广的可视角 度； 3、 减少近距离观看的失真度。
曲面液晶面板是曲面液晶显示器的核心组成部分。 现有的曲面液晶面 板结构如图 1、 图 2所示，包括 TFT基板 100、 与 TFT基板对应设置的 CF 基板 200、 设于 TFT基板 100与 CF基板 200之间的间隔物 300、 设于 TFT 基板 100与 CF基板 200之间的液晶层 400、 及设于 TFT基板 100与 CF基 板 200之间且位于边缘的密封胶层 500。 其中，间隔物 300用于支撑 TFT 基板 100与 CF基板 200之间形成的盒厚。 间隔物 300以等高度、 等密度、 等 CD ( Critical Dimension )值即等尺寸的方式设置于 TFT基板 100与 CF 基板 200之间，该设置方式存在一定的弊端，表现在由于曲面液晶面板具 有一定的弧度，弯曲后的 TFT基板 100与 CF基板 200之间会产生相对滑 动，曲面液晶面板会以中心为基点分别产生左右滑动的应力，该应力自中 心向两侧逐渐减小，同时 TFT基板 100与 CF基板 200相互挤压的应力也 自中心向两侧逐渐减小，曲面液晶面板中间区域承受的应力大于两侧区域 承受的应力，但间隔物 300以等高度、等密度、等 CD值的方式设置，导致 曲面液晶面板中间区域的变形量大于两侧区域的变形量，从而使得中间区 域的盒厚小于两侧区域的盒厚，引起液晶层厚度分布不均，中间区域与两 侧区域的光线穿透率和响应时间不一致，造成曲面液晶面板显示影像模糊， 光学品味下降。 发明内容
本发明的目的在于提供一种曲面液晶面板结构，能够保证整个曲面液 晶面板的盒厚一致，液晶层厚度分布均匀，使得光线穿透率和响应时间一 致，提升曲面液晶面板的光学品味。
为实现上述目的，本发明供一种曲面液晶面板结构，包括： TFT基板、 与 TFT基板对应设置的 CF基板、 设于 TFT基板与 CF基板之间的间隔物、 设于 TFT基板与 CF基板之间的液晶层、 及设于 TFT基板与 CF基板之间 且位于边缘的密封胶层，在沿曲面液晶面板弯曲的方向， CF基板具有一个 中间区域及位于中间区域两侧的两侧区域，该中间区域承受的应力大于该 两侧区域，位于中间区域的间隔物设置成比位于两侧区域的间隔物能承受 更大的应力，使 CF基板与 TFT基板之间保持等间距。 所述位于中间区域的间隔物的高度比位于两侧区域的间隔物的高度 局。
所述位于中间区域的间隔物的高度沿曲面液晶面板弯曲的方向，从中 心向两侧逐渐降低。
所述位于每一侧区域的间隔物的高度沿曲面液晶面板弯曲的方向，从 靠近中间区域一侧向另一侧逐渐降低，或所述位于每一侧区域的间隔物的 高度相等。
所述位于中间区域的间隔物的密度比位于两侧区域的间隔物的密度 大。
所述位于中间区域的间隔物的密度沿曲面液晶面板弯曲的方向，从中 心向两侧逐渐减小。
所述位于每一侧区域的间隔物的密度沿曲面液晶面板弯曲的方向，从 靠近中间区域一侧向另一侧逐渐减小，或所述位于每一侧区域的间隔物的 密度相等。
所述位于中间区域的间隔物的 CD值比位于两侧区域的间隔物的 CD值 大。
所述位于中间区域的间隔物的 CD值沿曲面液晶面板弯曲的方向 ,从中 心向两侧逐渐减小。
所述位于每一侧区域的间隔物的 CD值沿曲面液晶面板弯曲的方向从 靠近中间区域一侧向另一侧逐渐减小，或所述位于每一侧区域的间隔物的 CD值相等。
本发明还提供一种曲面液晶面板结构，包括： TFT基板、 与 TFT基板 对应设置的 CF基板、 设于 TFT基板与 CF基板之间的间隔物、 设于 TFT 基板与 CF基板之间的液晶层、及设于 TFT基板与 CF基板之间且位于边缘 的密封胶层，其中，沿曲面液晶面板弯曲的方向， CF基板具有一个中间区 域及位于中间区域两侧的两侧区域，该中间区域承受的应力大于该两侧区 域，位于中间区域的间隔物设置成比位于两侧区域的间隔物能承受更大的 应力，使 CF基板与 TFT基板之间保持等间距；
其中，所述位于中间区域的间隔物的高度比位于两侧区域的间隔物的 局度局 /·
其中，所述位于中间区域的间隔物的高度沿曲面液晶面板弯曲的方向， 从中心向两侧逐渐降低；
其中，所述位于每一侧区域的间隔物的高度沿曲面液晶面板弯曲的方 向，从靠近中间区域一侧向另一侧逐渐降 ί氏，或所述位于每一侧区域的间 隔物的高度相等。
本发明的有益效果：本发明的曲面液晶面板结构，通过设置位于中间 区域的间隔物的高度高于两侧区域的间隔物的高度、 位于中间区域的间隔 物的密度大于两侧区域的间隔物的密度、 或位于中间区域的间隔物的 CD 值大于两侧区域的间隔物的 CD值 ,使得位于中间区域的间隔物比位于两侧 区域的间隔物能承受更大的应力 ,CF基板与 TFT基板之间能够保持等间距， 从而保证曲面液晶面板整体的盒厚一致，液晶层厚度分布均匀，光线穿透 率和响应时间一致，提升了曲面液晶面板的光学品味，且结构简单，易实 现。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本 发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发 明加以限制。 附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明 的技术方案及其它有益效果显而易见。
图 1为现有的曲面液晶面板结构弯曲之前的示意图；
图 2为现有的曲面液晶面板结构弯曲之后的示意图； 图 3为本发明曲面液晶面板结构的第一实施例弯曲之前的示意图； 图 4为本发明曲面液晶面板结构的第一实施例弯曲之后的示意图； 图 5为本发明曲面液晶面板结构的第二实施例弯曲之前的示意图； 图 6为本发明曲面液晶面板结构的第二实施例弯曲之后的示意图； 图 7为本发明曲面液晶面板结构的第三实施例弯曲之前的示意图； 图 8为本发明曲面液晶面板结构的第三实施例弯曲之后的示意图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 3、图 4 ,为本发明一种曲面液晶面板结构的第一较佳实施例。 该曲面液晶面板结构包括： TFT基板 1、与 TFT基板 1对应设置的 CF基板 3、 设于 TFT基板 1与 CF基板 3之间的间隔物 5、 设于 TFT基板 1与 CF 基板 3之间的液晶层 7、及设于 TFT基板 1与 CF基板 3之间且位于边缘的 密封胶层 9。 所述 TFT基板 1用于驱动液晶层 7中的液晶分子发生偏转， 以对透过曲面液晶面板的光线进行选择 ,所述 CF基板 3用于实现彩色显示； 所述间隔物 5用于支撑 TFT基板 1与 CF基板 3之间的盒厚，使液晶层 7 分布均匀；所述密封胶层 9用于将液晶层 7封装于 TFT基板 1与 CF基板 3 之间。
所述 CF基板 3具有一个中间区域 31及位于中间区域两侧的两侧区域 33。 由于曲面液晶面板弯曲后，所述 TFT基板 1与 CF基板 3之间会产生 相对滑动，曲面液晶面板会以其中心为基点分别产生左右滑动的应力，该 应力自中心向两侧逐渐减小，同时 TFT基板 1与 CF基板 3相互挤压的应 力也自中心向两侧逐渐减小，所以所述中间区域 31承受的应力大于所述两 侧区域 33。只有将位于中间区域 31的间隔物 51设置成比位于两侧区域 33 的间隔物 53能承受更大的应力，才能使 CF基板 3与 TFT基板 1之间保持 等间距，保证曲面液晶面板整体的盒厚一致。
在该第一实施例中，设于 TFT基板 1与 CF基板 3之间的间隔物 5包 括位于所述中间区域 31的间隔物 51及位于所述两侧区域 33的间隔物 53 , 且所述位于中间区域 31的间隔物 51的高度设置为比位于所述两侧区域 33 的间隔物 53的高度高。 进一步的，所述位于中间区域 31的间隔物 51的高 度沿曲面液晶面板弯曲的方向，从中心向两侧逐渐降 ί氏，以适应由中心向 两侧逐渐减小的应力；所述位于每一侧区域 33的间隔物 53的高度沿曲面 液晶面板弯曲的方向，从靠近中间区域 31—侧向另一侧逐渐降低，或所述 位于每一侧区域 33的间隔物 53的高度相等，优选的，所述位于每一侧区 域 33的间隔物 53的高度沿曲面液晶面板弯曲的方向，从靠近中间区域 31 —侧向另一侧逐渐降低。 曲面液晶面板弯曲后，其中间部分的 TFT基板 1 与 CF基板 3所承受的应力与受挤压的程度大于两侧部分的 TFT基板 1与 CF基板 3所承受的应力与受挤压的程度，然而该第一实施例中将所述中间 区域 31的间隔物 51的高度设置为比位于所述两侧区域 33的间隔物 53的 高度高，使得中间区域 31的间隔物 51比位于两侧区域 33的间隔物 53能 承受更大的应力，所述 CF基板 3与 TFT基板 1之间得以保持等间距，从 而保证曲面液晶面板整体的盒厚一致。
请参阅图 5、 图 6 ,为本发明曲面液晶面板结构的第二较佳实施例。 在 该第二实施例中，设于 TFT基板 1与 CF基板 3之间的间隔物 5'包括位于 所述中间区域 31的间隔物 5Γ及位于所述两侧区域 33的间隔物 53' ,且所 述位于中间区域 31的间隔物 5Γ的密度设置为比位于所述两侧区域 33的间 隔物 53'的密度大。进一步的，所述位于中间区域 31的间隔物 51 '的密度沿 曲面液晶面板弯曲的方向，从中心向两侧逐渐减小，以适应由中心向两侧 逐渐减小的应力；所述位于每一侧区域 33的间隔物 53'的密度沿曲面液晶 面板弯曲的方向，从靠近中间区域 31—侧向另一侧逐渐减小，或所述位于 每一侧区域 33的间隔物 53，的密度相等，优选的，所述位于每一侧区域 33 的间隔物 53'的密度沿曲面液晶面板弯曲的方向，从靠近中间区域 31—侧 向另一侧逐渐减小。曲面液晶面板弯曲后，其中间部分的 TFT基板 1与 CF 基板 3所承受的应力与受挤压的程度大于两侧部分的 TFT基板 1与 CF基 板 3所承受的应力与受挤压的程度，然而该第二实施例中将所述中间区域 31的间隔物 5 Γ的密度设置为比位于所述两侧区域 33的间隔物 53'的密度 高，使得中间区域 31的间隔物 51 '比位于两侧区域 33的间隔物 53'能承受 更大的应力，所述 CF基板 3与 TFT基板 1之间得以保持等间距，从而保 证曲面液晶面板整体的盒厚一致。
请参阅图 7、 图 8 ,为本发明曲面液晶面板结构的第三较佳实施例。 在 该第三实施例中，设于 TFT基板 1与 CF基板 3之间的间隔物 5"包括位于 所述中间区域 31的间隔物 51 "及位于所述两侧区域 33的间隔物 53" ,且所 述位于中间区域 31的间隔物 51 "的 CD值设置为比位于所述两侧区域 33的 间隔物 53"的 CD值大。 进一步的，所述位于中间区域 31的间隔物 51 "的 CD值沿曲面液晶面板弯曲的方向，从中心向两侧逐渐减小，以适应由中心 向两侧逐渐减小的应力；所述位于每一侧区域 33的间隔物 53"的 CD值沿 曲面液晶面板弯曲的方向，从靠近中间区域 31—侧向另一侧逐渐减小，或 所述位于每一侧区域 33的间隔物 53"的 CD值相等，优选的，所述位于每 —侧区域 33的间隔物 53"的 CD值沿曲面液晶面板弯曲的方向，从靠近中 间区域 31—侧向另一侧逐渐减小。曲面液晶面板弯曲后其中间部分的 TFT 基板 1与 CF基板 3所承受的应力与受挤压的程度大于两侧部分的 TFT基 板 1与 CF基板 3所承受的应力与受挤压的程度，然而该第三实施例中将所 述中间区域 31的间隔物 51 "的 CD值设置为比位于所述两侧区域 33的间隔 物 53"的 CD值高，使得中间区域 31的间隔物 51 "比位于两侧区域 33的间 隔物 53"能承受更大的应力，所述 CF基板 3与 TFT基板 1之间得以保持 等间距，从而保证曲面液晶面板整体的盒厚一致。
值得一提的是，还可以将上述第一、 第二、 第三实施例中对间隔物 5 的设置方式进行组合，以更好的支撑所述 TFT基板 1与 CF基板 3 ,保证曲 面液晶面板整体的盒厚一致。
综上所述，本发明的曲面液晶面板结构，通过设置位于中间区域的间 隔物的高度高于两侧区域的间隔物的高度、 位于中间区域的间隔物的密度 大于两侧区域的间隔物的密度、或位于中间区域的间隔物的 CD值大于两侧 区域的间隔物的 CD值 ,使得位于中间区域的间隔物比位于两侧区域的间隔 物能承受更大的应力， CF基板与 TFT基板之间能够保持等间距，从而保证 曲面液晶面板整体的盒厚一致，液晶层厚度分布均匀，光线穿透率和响应 时间一致，提升了曲面液晶面板的光学品味，且结构简单，易实现。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

杈 利 要 求
1、 一种曲面液晶面板结构，包括： TFT基板、 与 TFT基板对应设置的 CF基板、 设于 TFT基板与 CF基板之间的间隔物、 设于 TFT基板与 CF基 板之间的液晶层、 及设于 TFT基板与 CF基板之间且位于边缘的密封胶层， 其中，沿曲面液晶面板弯曲的方向， CF基板具有一个中间区域及位于中间 区域两侧的两侧区域，该中间区域承受的应力大于该两侧区域，位于中间 区域的间隔物设置成比位于两侧区域的间隔物能承受更大的应力，使 CF基 板与 TFT基板之间保持等间距。
2、 如权利要求 1所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的高度比位于两侧区域的间隔物的高度高。
3、 如权利要求 2所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的高度沿曲面液晶面板弯曲的方向，从中心向两侧逐渐降低。
4、 如权利要求 2所述的曲面液晶面板结构，其中，所述位于每一侧区 域的间隔物的高度沿曲面液晶面板弯曲的方向，从靠近中间区域一侧向另 一侧逐渐降低，或所述位于每一侧区域的间隔物的高度相等。
5、 如权利要求 1所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的密度比位于两侧区域的间隔物的密度大。
6、 如权利要求 5所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的密度沿曲面液晶面板弯曲的方向，从中心向两侧逐渐减小。
7、 如权利要求 5所述的曲面液晶面板结构，其中，所述位于每一侧区 域的间隔物的密度沿曲面液晶面板弯曲的方向，从靠近中间区域一侧向另 一侧逐渐减小，或所述位于每一侧区域的间隔物的密度相等。
8、 如权利要求 1所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的 CD值比位于两侧区域的间隔物的 CD值大。
9、 如权利要求 8所述的曲面液晶面板结构，其中，所述位于中间区域 的间隔物的 CD值沿曲面液晶面板弯曲的方向，从中心向两侧逐渐减小。
10、 如权利要求 8所述的曲面液晶面板结构，其中，所述位于每一侧 区域的间隔物的 CD值沿曲面液晶面板弯曲的方向 ,从靠近中间区域一侧向 另一侧逐渐减小，或所述位于每一侧区域的间隔物的 CD值相等。
11、 一种曲面液晶面板结构，包括： TFT基板、 与 TFT基板对应设置 的 CF基板、 设于 TFT基板与 CF基板之间的间隔物、 设于 TFT基板与 CF 基板之间的液晶层、 及设于 TFT基板与 CF基板之间且位于边缘的密封胶 层，其中，沿曲面液晶面板弯曲的方向， CF基板具有一个中间区域及位于 中间区域两侧的两侧区域，该中间区域承受的应力大于该两侧区域，位于 中间区域的间隔物设置成比位于两侧区域的间隔物能承受更大的应力，使
CF基板与 TFT基板之间保持等间距；
其中，所述位于中间区域的间隔物的高度比位于两侧区域的间隔物的 局度局 /·
其中，所述位于中间区域的间隔物的高度沿曲面液晶面板弯曲的方向， 从中心向两侧逐渐降低；
其中，所述位于每一侧区域的间隔物的高度沿曲面液晶面板弯曲的方 向，从靠近中间区域一侧向另一侧逐渐降 ί氏，或所述位于每一侧区域的间 隔物的高度相等。
PCT/CN2014/079712 2014-05-22 2014-06-12 曲面液晶面板结构 WO2015176337A1 (zh)

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