WO2018196052A1 - 液晶面板及其制造方法 - Google Patents

液晶面板及其制造方法 Download PDF

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Publication number
WO2018196052A1
WO2018196052A1 PCT/CN2017/084670 CN2017084670W WO2018196052A1 WO 2018196052 A1 WO2018196052 A1 WO 2018196052A1 CN 2017084670 W CN2017084670 W CN 2017084670W WO 2018196052 A1 WO2018196052 A1 WO 2018196052A1
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WIPO (PCT)
Prior art keywords
color resist
substrate
resist layer
layer
liquid crystal
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Ceased
Application number
PCT/CN2017/084670
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English (en)
French (fr)
Inventor
陈猷仁
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US15/550,507 priority Critical patent/US20190384098A1/en
Publication of WO2018196052A1 publication Critical patent/WO2018196052A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/1339—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
    • G02F1/1335—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
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes

Definitions

  • the present application relates to a manufacturing method, and in particular to a liquid crystal panel and a method of manufacturing the same.
  • the liquid crystal display panel is mainly composed of an active switch array substrate, a color filter substrate, and liquid crystal molecules filled therebetween.
  • a spacer Photo Spacer
  • the spacer has another design, a double-segment difference spacer design. That is, the spacer is divided into a main spacer (main PS) and a secondary spacer (sub PS), generally the main spacer plays a supporting role, the auxiliary spacer is suspended, and when the liquid crystal display panel is squeezed, the auxiliary spacer is only Supporting.
  • the step difference between the main spacer and the auxiliary spacer is generally realized by an active switching array (Array) in which the pad is disposed opposite to the main spacer.
  • Array active switching array
  • the step difference between the main spacer and the auxiliary spacer is the sum of the thicknesses of the metal layer (M2), the doped semiconductor layer (N+), and the semiconductor layer (a-Si).
  • M2 metal layer
  • N+ doped semiconductor layer
  • a-Si semiconductor layer
  • an object of the present invention is to provide a liquid crystal panel and a method of manufacturing the same that can increase the step difference of the main and auxiliary spacers of the liquid crystal display panel without significantly changing the existing production flow.
  • a liquid crystal panel includes: a first substrate; a second substrate disposed opposite the first substrate; and a color filter layer formed on one of the first substrate and the second substrate And comprising a plurality of color resist layers, the plurality of color resist layers comprising a first color resist layer having a high color resist layer formed thereon; and a plurality of regions between the first substrate and the second substrate a photo spacer for defining a liquid crystal spacer space, the plurality of photo spacers including a first spacer and a second spacer, the first spacer being disposed on the pad color resist layer, the second a spacer is disposed on the first color resist layer, a total height of the first spacer and the high color resist layer is higher than a height of the second spacer; and the first substrate and the Between the second substrates, and filling the liquid crystal layer of the liquid crystal spacer.
  • the plurality of color resist layers include three color resist layers or four color resist layers of different colors.
  • the first color resist layer is one of a red resist layer, a blue resist layer and a green resist layer.
  • the plurality of color resist layers comprise four color resist layers of different colors, and the first color resist layer is one of a red resist layer, a blue resist layer, a green resist layer and a white resist layer.
  • the pad color resist layer is different from the color resist material of the first color resist layer.
  • the high color resist layer includes at least one layer of a padding structure, and the color resist material of each layer of the padding structure is different.
  • the first substrate is an active switch array substrate
  • the color filter layer is formed on the second substrate
  • the high color resist layer and the first substrate are actively switched.
  • the first spacer is formed between the pad color resist layer and the active switch of the first substrate.
  • the first substrate is an active switch array substrate
  • the color filter layer is formed on the first substrate
  • the second substrate includes a light shielding layer
  • the high color resist layer The light shielding layer is disposed opposite to the light shielding layer, and the first spacer is formed between the high color resist layer and the light shielding layer.
  • Another object of the present application is a method for manufacturing a liquid crystal panel, comprising: providing a first substrate and a second substrate disposed opposite to each other; forming a color filter layer on the first substrate and the second substrate,
  • the color filter layer includes a plurality of color resist layers, the plurality of color resist layers including a first color resist layer, a high color resist layer formed on the first color resist layer; and a plurality of photo spacers formed thereon
  • a liquid crystal space is defined, the first spacer is disposed on the pad color resist layer, and the second spacer is disposed on the first color a height of the first spacer and the high color resist layer is higher than a height of the second spacer; and forming a liquid crystal layer on the first substrate and the second substrate between.
  • the high color resist layer is different from the color resist material of the first color resist layer.
  • the high color resist layer comprises at least one layer of a padding structure, and the color resist material of each layer of the padding structure is different.
  • Still another object of the present application is a liquid crystal panel, comprising: a first substrate; a second substrate disposed opposite to the first substrate; and a color filter layer including a plurality of color resist layers formed on the first substrate And one of the second substrates; a plurality of photo spacers between the first substrate and the second substrate for defining a liquid crystal spacer space; and a liquid crystal layer located on the first substrate and the Between the second substrate, and filling the liquid crystal space; wherein the plurality of color resist layers comprise a first color resist layer, and the first color resist layer is formed with a high color resist layer;
  • the photo spacers include a first spacer and a second spacer, the first spacer is disposed on the pad color resist layer, and the second spacer is disposed on the first color resist layer
  • the height of the first spacer and the high color resist layer is higher than the height of the second spacer;
  • the high color resist layer comprises at least one layer of a high structure, the height of each layer The color resist material is different; the
  • the application can increase the step difference of the main and auxiliary spacers of the liquid crystal display panel without increasing the existing production process, improve the liquid crystal margin of the liquid crystal display panel, and improve the mass production yield.
  • Figure 1a is a schematic cross-sectional view of an exemplary liquid crystal display panel.
  • Figure 1b is a schematic cross-sectional view of a fabrication of an exemplary liquid crystal display panel.
  • FIG. 1c is a simplified schematic of a spacer step configuration in an exemplary liquid crystal display panel.
  • FIG. 2a is a schematic cross-sectional view showing the application of a single-layer pad structure to a liquid crystal display panel in accordance with the method of the present application.
  • 2b is a schematic cross-sectional view showing the application of a single-layer pad structure to a liquid crystal display panel in accordance with the method of the present application.
  • FIG 3 is a schematic cross-sectional view showing the formation of a multi-layered pad structure applied to a liquid crystal display panel in accordance with the method of the present application.
  • FIG. 4 is a schematic cross-sectional view showing the formation of a composite pad high structure applied to a liquid crystal display panel in accordance with the method of the present application.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • the liquid crystal panel of the present application may include a first substrate and a second substrate and a liquid crystal layer formed between the two substrates, and the first substrate and the second substrate may be, for example, an active switch array (the thin film transistor Thin Film Transistor, TFT) ; but not limited to this) Substrate, color filter (CF) substrate.
  • the active switch array and the color filter layer of the present application may also be formed on the same substrate.
  • the liquid crystal panel of the present application may be a curved display panel.
  • FIG. 1a is a schematic cross-sectional view of an exemplary liquid crystal display panel
  • FIG. 1b is a schematic cross-sectional view of an exemplary liquid crystal display panel
  • FIG. 1c is a schematic view of a spacer step configuration in an exemplary liquid crystal display panel.
  • a double-gap semi-transverse MVA liquid crystal display is taken as an example.
  • the double-gap half-transflective liquid crystal display is provided with an adjustment layer 208 in the reflection region R.
  • the adjustment layer may be disposed on the color filter layer substrate side or the thin film transistor substrate side.
  • the basic structure of the double gap transflective MVA liquid crystal display comprises a first substrate 10, a second substrate 20 and a liquid crystal layer 30.
  • the first substrate 10 has a plurality of pixel regions 110, and each of the pixel regions 110 is provided with a reflective region R and a penetrating region T.
  • the second substrate 20 includes a color filter layer 210 having a plurality of pixel regions 120 thereon, the pixel regions 120 respectively corresponding to the plurality of pixel regions 110 of the first substrate, and each of the pixel regions 120 and the reflective region
  • An adjustment layer 208 is provided at each of the positions corresponding to R.
  • the liquid crystal layer 30 is disposed between the first substrate 10 and the second substrate 20.
  • an active array switch is disposed in each pixel area 110 of the first substrate 10 (for example, a thin film transistor, but not limited thereto), and a storage capacitor 308 is reflected.
  • a flat layer 104 is then formed on the upper surface of the first substrate 10. Then, a surface having irregularities is formed on the flat layer 104 in the reflective region R, and a metal having high reflectance (for example, aluminum, silver, etc.) is plated as the reflective electrode 113 while the penetration region of each of the pixel regions 110 is penetrated.
  • Each of T is also provided with a transparent electrode 114.
  • each pixel region 110 of the first substrate 10 further has a contact hole 310 for electrically connecting the reflective electrode 113 and the storage capacitor 308.
  • the color filter layer 210 is further provided with an alignment protrusion 122 (PR) for the position of the reflection area R and the penetration area T of the first substrate 10. Since the alignment protrusions 122 change the distribution of the power lines, the liquid crystal molecules are tilted in the direction of the alignment protrusions 122 to produce multi-domain liquid crystal alignment (Multi-domains), thereby achieving a wide viewing angle technique and improving single-region liquid crystals. The problem of grayscale inversion when there is a single-domain. As shown in FIG.
  • the color filter layer 210 is further provided with a photo spacer (PS) 300 to fix the pitch of the panel (Cell Gap).
  • PS photo spacer
  • a plurality of platforms corresponding to the spacers 300 are designed on the side of the first substrate 10, so that the photo spacers 300 can maintain the panel pitch more stably.
  • the spacer 300 region is designed as a main spacer (main PS) 301 and a secondary spacer (sub PS) 302, which are generally supported by the main spacer 301.
  • the auxiliary spacer 302 is suspended, and the auxiliary spacer 302 plays a supporting role when the liquid crystal display panel is pressed.
  • the step difference between the main spacer 301 and the auxiliary spacer 302 is generally realized by an active switching array (Array) in which the pad is disposed opposite to the main spacer 301.
  • Array active switching array
  • the step difference between the main spacer 301 and the auxiliary spacer 302 is an active switch including a sum of thicknesses of a metal layer (M2) 111, a doped semiconductor layer (N+) 112, a semiconductor layer (a-Si) 113, and the like.
  • M2 metal layer
  • N+ doped semiconductor layer
  • a-Si semiconductor layer
  • a liquid crystal panel includes: a first substrate 10 having a plurality of pixel regions, the first substrate 10 including: a first substrate 100; a first insulating layer 102 is formed on the first substrate 100; and a first electrode 106 is formed on the first insulating layer 102.
  • the second substrate 20 is disposed opposite to the first substrate 10.
  • the color filter layer 210 includes a plurality of color resist layers formed on one of the first substrate 10 and the second substrate 20.
  • a plurality of photo spacers are disposed between the first substrate 10 and the second substrate 20 to define a liquid crystal spacer space.
  • the liquid crystal layer 30 is located between the first substrate 10 and the second substrate 20 and fills the liquid crystal spacer space.
  • the plurality of color resist layers include a first color resist layer 211, and the first color resist layer 211 is formed with a high color resist layer 220a.
  • the plurality of photo spacers include a first spacer 301 and a first spacer a spacer 302, the first spacer 301 is disposed on the pad color resist layer 220a, and the second spacer 302 is disposed on the first color resist layer 211, the first spacer 301 And the sum height of the pad color resist layer 220a is higher than the height of the second spacer 302, thereby forming a relatively obvious step.
  • the second substrate 20 includes: a second substrate 200; a color filter layer 210 on the second substrate 200; and a second electrode 204 on the color filter layer 210.
  • the second substrate 20 further includes a light shielding layer (for example, Black Matrix, BM), substantially directly above the photo spacer.
  • a light shielding layer for example, Black Matrix, BM
  • the color filter layer 210 includes the first color resist layer, the second color resist layer, and the third color resist layer, such as the red resist layer 211 and the green resist layer 212, which are different in color resist material.
  • the first color resist layer is one of a red resist layer 211, a blue resist layer 213 and a green resist layer 212.
  • the pad color resist layer 220a is different from the color resist material of the first color resist layer. As shown in FIG. 2a, the first color resist layer is a red resist layer 211, and the color resist material of the high color resist layer 220a is the same as the blue resist layer 213.
  • FIG. 2b is a schematic cross-sectional view showing the application of a single-layer pad structure to a liquid crystal display panel in accordance with the method of the present application.
  • the first color resist layer is a red resist layer 211
  • the color resist material of the high color resist layer 220b is the same as the green resist layer 212.
  • the first color resist layer is a blue resist layer 213, and the color resist material of the high color resist layer 220b is the same as the red resist layer 211.
  • the first color resist layer is a blue resist layer 213, and the color resist material of the high color resist layer 220b is the same as the green resist layer 212.
  • the first color resist layer is a green resist layer 212, and the color resist material of the high color resist layer 220b is the same as the red resist layer 211.
  • the first color resist layer is a green resist layer 212, and the color resist material of the high color resist layer 220b is the same as the blue resist layer 213.
  • the high color resist layer 220c includes at least one layer of a pad structure, and the color resist material of each layer of the pad structure is different.
  • the first color resist layer is a red resist layer 211
  • the color resist material of the high color resist layer 220c is the same as the combination of the blue resist layer 213 and the green resist layer 212, for example, below is a combination of blue and green or green and blue.
  • the first color resist layer is a blue resist layer 213, and the color resist material of the high color resist layer 220c is the same as the combination of the red resist layer 211 and the green resist layer 212, for example, from above. Below is a combination of red and green or green and red.
  • the first color resist layer is a green resist layer 212
  • the color resist material of the high color resist layer 220c is the same as the combination of the red resist layer 211 and the blue resist layer 213, for example, below is a combination of red and blue or blue and red.
  • the plurality of color resist layers of the color filter layer 210 may also include, for example, a yellow or other color color resist layer.
  • the color filter layer 210 includes the first color resist layer, the second color resist layer, the third color resist layer, and the fourth color resist layer, such as a red resist layer, having different color resist materials. 211, a green resist layer 212, a blue resist layer 213 and a white resist layer.
  • the first color resist layer is one of a red resist layer 211, a blue resist layer 213, a green resist layer 212, and a white resist layer.
  • the color resist material of the pad color resist layer 220c is different from the first color resist layer, but is the same as the color resist material of the other color resist layer, and can be formed in the process of forming other color resist layers. Completed at the same time, or added to form a program to complete.
  • the first substrate 10 is an active switch array substrate
  • the color filter layer 210 is formed on the second substrate 20
  • the pad color resist layer 220d and the first substrate 10 are The active switch is disposed oppositely
  • the first spacer 301 is formed between the pad color resist layer 220d and the active switch of the first substrate 10.
  • the step difference between the main spacer 301 and the auxiliary spacer 302 is an active switch, including a metal layer (M2) 111, a doped semiconductor layer (N+) 112, a semiconductor layer (a-Si) 113, and the like, plus a pad color
  • M2 metal layer
  • N+ doped semiconductor layer
  • a-Si semiconductor layer
  • the first substrate 10 is an active switch array substrate
  • the color filter layer 210 is formed on the first substrate 10
  • the second substrate 20 includes a light shielding layer.
  • the layer 220d is disposed opposite to the light shielding layer
  • the first spacer 301 is formed between the pad color resist layer 220d and the light shielding layer.
  • a method for manufacturing a liquid crystal panel of the present application includes: providing a first substrate 10 and a second substrate 20 disposed opposite to each other; forming a color filter layer 210 on the first substrate 10 and One of the second substrates 20, the color filter layer 210 includes a plurality of color resist layers, the plurality of color resist layers include a first color resist layer, and the first color resist layer is formed with a pad color a plurality of photo spacers are formed between the first substrate 10 and the second substrate 20 to define a liquid crystal spacer space, and the first spacer 301 is disposed on the pad color resist layer
  • the second spacer 302 is disposed on the first color resist layer, and a total height of the first spacer 301 and the high color resist layer is higher than a height of the second spacer 302; A liquid crystal layer 30 is interposed between the first substrate 10 and the second substrate 20.
  • the application can increase the step difference of the main and auxiliary spacers 302 of the liquid crystal display panel without increasing the existing production process, improve the liquid crystal margin of the liquid crystal display panel, and improve the mass production yield.

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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

一种液晶面板及其制造方法，液晶面板包括：对向设置的第一基板（10）与第二基板（20）；形成于第一基板（10）及第二基板（20）之一的彩色滤光层（210），其包括的多个色阻层的第一色阻层（211）上形成有垫高色阻层（220a）；光间隔物包括第一、第二光间隔物（301，302），第一间隔物（301）设置在垫高色阻层（220a）上，第二间隔物（302）设置于第一色阻层（211）上，第一间隔物（301）及垫高色阻层（220a）的总和高度高于第二间隔物（302）的高度；第一基板（10）与第二基板（20）之间填满间隔物定义的液晶间隔空间。

Description

液晶面板及其制造方法 技术领域
本申请涉及一种制造方法，特别是涉及一种液晶面板及其制造方法。
背景技术
随着科技进步，具有省电、无幅射、体积小、低耗电量、平面直角、高分辨率、画质稳定等多项优势的液晶显示器，尤其是现今各式信息产品如：手机、笔记本电脑、数字相机、PDA、液晶屏幕等产品越来越普及，也使得液晶显示器(Liquid Crystal Display，LCD)的需求量大大提升。因此如何提升生产制程效率与及产品良率，将是经营者须面对的问题。
液晶显示面板主要由主动开关阵列基板、彩色滤光片基板，以及填充于其间的液晶分子所构成。为了确保稳定的显示品质，主动开关阵列基板与彩色滤光片基板之间必须设置间隔物(Photo Spacer)，以使两基板之间维持固定的液晶盒间隙(cell gap)。
为了增加液晶显示面板对外力按压的容忍度，公知间隔物具有另一种设计，双段差间隔物设计。即是将间隔物区分为主间隔物(main PS)和辅间隔物(sub PS)，一般是主间隔物起支撑作用，辅间隔物悬空，当液晶显示面板受到挤压时，辅间隔物才起支撑作用。主间隔物和辅间隔物的段差一般是通过垫高与主间隔物相对设置的主动开关阵列(Array)来实现。所以主间隔物和辅间隔物的段差是金属层(M2)、掺杂半导体层(N+)、半导体层(a-Si)的厚度总和。然而，此种设计会使得主间隔物和辅间隔物之间的段差太小，造成液晶示面板的液晶裕度(LC margin)相对较低太小，量产效益相对较低。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种液晶面板及其制造方法，可以在不大幅改变现有生产流程的前提，增加液晶显示面板的主、辅间隔物的段差。
本申请的目的及解决其技术问题是采用以下技术方案来实现的。依据本申请提出的一种液晶面板，包括：第一基板；与所述第一基板对向设置的第二基板；形成于所述第一基板及所述第二基板之一的彩色滤光层，其包括多个色阻层，所述多个色阻层包括第一色阻层，其上形成有垫高色阻层；位于所述第一基板与所述第二基板之间的多个光间隔物，用以定义液晶间隔空间，所述多个光间隔物包括第一间隔物与第二间隔物，所述第一间隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度；位于所述第一基板与所述第二基板之间，并填满所述液晶间隔空间的液晶层。
本申请解决其技术问题还可采用以下技术措施进一步实现。
在本申请的一实施例中，所述多个色阻层包括相异颜色的三个色阻层或四个色阻层。
在本申请的一实施例中，所述多个色阻层包括相异颜色的三个色阻层时，所述第一色阻层为红色阻层、蓝色阻层与绿色阻层之一；或，所述多个色阻层包括相异颜色的四个色阻层，所述第一色阻层为红色阻层、蓝色阻层、绿色阻层与白色阻层之一。
在本申请的一实施例中，所述垫高色阻层与所述第一色阻层的色阻材料为相异。
在本申请的一实施例中，所述垫高色阻层包括至少一层的垫高结构，所述垫高结构每层的色阻材料为相异。
在本申请的一实施例中，所述第一基板为主动开关阵列基板，所述彩色滤光层形成于所述第二基板，所述垫高色阻层与所述第一基板的主动开关为对向设置，所述第一间隔物形成于所述垫高色阻层与所述第一基板的主动开关之间。
在本申请的一实施例中，所述第一基板为主动开关阵列基板，所述彩色滤光层形成于所述第一基板，所述第二基板包括遮光层，所述垫高色阻层与所述遮光层为对向设置，所述第一间隔物形成于所述垫高色阻层与所述遮光层之间。
本申请的另一目为一种液晶面板的制造方法，包括：提供对向设置的第一基板与第二基板；形成彩色滤光层于所述第一基板及所述第二基板之一，所述彩色滤光层包括多个色阻层，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层；形成多个光间隔物于所述第一基板与所述第二基板之间，用以定义液晶间隔空间，所述第一间隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度；以及，形成一液晶层于所述第一基板以及所述第二基板之间。
本申请解决其技术问题还可采用以下技术措施进一步实现。
所述垫高色阻层与所述第一色阻层的色阻材料为相异。
所述垫高色阻层包括至少一层的垫高结构，所述垫高结构每层的色阻材料为相异。
本申请的又一目为一种液晶面板，包括：第一基板；第二基板，与所述第一基板对向设置；彩色滤光层，包括多个色阻层，形成于所述第一基板及所述第二基板之一；多个光间隔物，位于所述第一基板与所述第二基板之间，用以定义液晶间隔空间；以及液晶层，位于所述第一基板与所述第二基板之间，并填满所述液晶间隔空间；其中，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层；所述多个光间隔物包括第一间隔物与第二间隔物，所述第一间隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度；所述垫高色阻层包括至少一层的垫高结构，所述垫高结构每层的色阻材料为相异；所述第一色阻层为红色阻层，所述垫高色阻层的色阻材料相同于蓝色阻层及 绿色阻层的组合。
有益效果
本申请可以在不大幅改变现有生产流程的前提，增加液晶显示面板的主、辅间隔物的段差，提升液晶示面板的液晶裕度，改善量产良率。
附图说明
图1a是范例性的液晶显示面板中横截面示意图。
图1b是范例性的液晶显示面板中的制造横截面示意图。
图1c为范例性的液晶显示面板中的间隔物段差配置简意图。
图2a为显示依据本申请的方法，一单层垫高结构应用于液晶显示面板的横截面示意图。
图2b为显示依据本申请的方法，一单层垫高结构应用于液晶显示面板的横截面示意图。
图3为显示依据本申请的方法，应用于液晶显示面板中的形成多层垫高结构的横截面示意图。
图4为显示依据本申请的方法，应用于液晶显示面板中的形成复合垫高结构的横截面示意图。
本发明的实施方式
以下各实施例的说明是参考附加的图式，用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本申请，而非用以限制本申请。
附图和说明被认为在本质上是示出性的，而不是限制性的。在图中，结构相似的单元是以相同标号表示。另外，为了理解和便于描述，附图中示出的每个组件的尺寸和厚度是任意示出的，但是本申请不限于此。
在附图中，为了清晰起见，夸大了层、膜、面板、区域等的厚度。在附图中，为了理解和便于描述，夸大了一些层和区域的厚度。将理解的是，当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时，所述组件可以直接在所述另一组件上，或者也可以存在中间组件。
另外，在说明书中，除非明确地描述为相反的，否则词语“包括”将被理解为意指包括所述组件，但是不排除任何其它组件。此外，在说明书中，“在......上”意指位于目标组件上方或者下方，而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定申请目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本申请提出的一种液晶面板及其制造方法，其具体实施方式、结构、特征及其功效，详细说明如后。
本申请的液晶面板可包括第一基板及第二基板与形成于两基板之间的液晶层，第一基板及第二基板可例如为主动开关阵列(现今制程多以薄膜晶体管Thin Film Transistor，TFT；但不以此为限) 基板、彩色滤光层(Color Filter，CF)基板。然不限于此，在一实施例中，本申请的主动开关阵列及彩色滤光层亦可形成于同一基板上。
在一实施例中，本申请的液晶面板可为曲面型显示面板。
图1a为范例性的液晶显示面板中横截面示意图、图1b为范例性的液晶显示面板中的制造横截面示意图、图1c为范例性的液晶显示面板中的间隔物段差配置简意图。请参照图1a及图1b，在目前的液晶显示器的技术发展上，以双间隙(Dual Gap)的半穿半反MVA液晶显示器为例。通常双间隙的半穿半反液晶显示器会在反射区R设置一个调整层208，如图1a所示，此调整层可以设置在彩色滤光层基板侧或薄膜晶体管基板侧。如图1a所示，双间隙半穿半反MVA液晶显示器的基本结构包括一第一基板10、一第二基板20及一液晶层30。其中，第一基板10具有多个画素区110，每一个画素区110均设有一反射区R以及一穿透区T。第二基板20包括彩色滤光层210，其上也具有多个画素区120，所述画素区120分别与第一基板的多个画素区110相对应，且每一个画素区120在与反射区R相对应的位置处均设有一调整层208。液晶层30则设于第一基板10与第二基板20之间。
请继续参考图1a、图1b与图1c，第一基板10的各个画素区110内都设有主动阵列开关(以薄膜晶体管为例，但不以此为限)，以及一储存电容308于反射区R的下方。接着形成一平坦层104于第一基板10的上表面。然后在平坦层104上制作出凹凸的表面于反射区R，再镀上具有高反射率的金属(例如：铝、银…等)当作反射电极113，同时每一个画素区110的穿透区T也均设有一透明电极114。值得一提的是，第一基板10的各画素区110的反射区R内更具有一接触孔310，用以电性连接反射电极113与储存电容308。另外，彩色滤光层210相对于第一基板10的反射区R与穿透区T的位置上更设有一配向凸起物122(Protrusion，简称PR)。由于配向凸起物122会改变电力线的分布，使得液晶分子往配向凸起物122的方向倾斜以产生多区域液晶配向(Multi-domains)的效果，而达到广视角的技术，并改善单一区域液晶配向(Single-domain)时所存在的灰阶反转的问题。如图1b所示，通常在组立第一基板10与第二基板20时，彩色滤光层210更设有光间隔物(Photo Spacer，简称PS)300来固定面板的间距(Cell Gap)，在第一基板10侧设计多个与间隔物300相对应的平台，使光间隔物300能够更稳定的维持面板间距。
如图1c所示，为提升液晶显示面板的按压容忍度，将间隔物300区设计成主间隔物(main PS)301和辅间隔物(sub PS)302，一般是主间隔物301起支撑作用，辅间隔物302悬空，当液晶显示面板受到挤压时，辅间隔物302才起支撑作用。主间隔物301和辅间隔物302的段差一般是通过垫高与主间隔物301相对设置的主动开关阵列(Array)来实现。所以主间隔物301和辅间隔物302的段差是主动开关，包括金属层(M2)111、掺杂半导体层(N+)112、半导体层(a-Si)113等结构的厚度总和。以上 所述，虽以反射式广视角液晶显示面板为例来作一说明，但本申请的应用范围并不仅限于此。其更可应用于双间隙半穿半反液晶显示面板以及单间隙半穿半反液晶显示面板的情况。
图2a为显示依据本申请的方法，一单层垫高结构应用于液晶显示面板的横截面示意图。请参照图2a，在本申请一实施例中，所述一种液晶面板，包括：第一基板10，具有多个画素区，所述第一基板10包括：第一基底100；第一绝缘层102形成于所述第一基底100上；以及第一电极106形成于所述第一绝缘层102上。第二基板20，与所述第一基板10对向设置。彩色滤光层210，包括多个色阻层，形成于所述第一基板10及所述第二基板20之一。多个光间隔物，位于所述第一基板10与所述第二基板20之间，用以定义液晶间隔空间。液晶层30，位于所述第一基板10与所述第二基板20之间，并填满所述液晶间隔空间。
其中，所述多个色阻层包括第一色阻层211，所述第一色阻层211上形成有垫高色阻层220a，所述多个光间隔物包括第一间隔物301与第二间隔物302，所述第一间隔物301设置在所述垫高色阻层220a上，所述第二间隔物302设置于所述第一色阻层211上，所述第一间隔物301及所述垫高色阻层220a的总和高度高于所述第二间隔物302的高度，从而形成相对明显的段差。
在一些实施例中，所述第二基板20包括：第二基底200；彩色滤光层210，位于所述第二基底200上；以及第二电极204，位于所述彩色滤光层210上。
在一些实施例中，所述第二基板20更包括一遮光层(举例为黑色矩阵Black Matrix，BM)，大体位于所述光间隔物正上方。
在一些实施例中，所述彩色滤光层210包括色阻材料相异的所述第一色阻层、第二色阻层与第三色阻层，例如红色阻层211、绿色阻层212与蓝色阻层213。其中，所述第一色阻层为红色阻层211、蓝色阻层213与绿色阻层212之一。
在一些实施例中，所述垫高色阻层220a与所述第一色阻层的色阻材料为相异。如图2a所示，所述第一色阻层为红色阻层211，所述垫高色阻层220a的色阻材料相同于蓝色阻层213。
图2b为显示依据本申请的方法，一单层垫高结构应用于液晶显示面板的横截面示意图。如图2b所示，所述第一色阻层为红色阻层211，所述垫高色阻层220b的色阻材料相同于绿色阻层212。
在一些实施例中，所述第一色阻层为蓝色阻层213，所述垫高色阻层220b的色阻材料相同于红色阻层211。或者，所述第一色阻层为蓝色阻层213，所述垫高色阻层220b的色阻材料相同于绿色阻层212。
在一些实施例中，所述第一色阻层为绿色阻层212，所述垫高色阻层220b的色阻材料相同于红色阻层211。或者，所述第一色阻层为绿色阻层212，所述垫高色阻层220b的色阻材料相同于蓝色阻层213。
图3为显示依据本申请的方法，应用于液晶显示面板中的形成多层垫高结构的横截面示意图。在一些实施例中，所述垫高色阻层220c包括至少一层的垫高结构，所述垫高结构每层的色阻材料为相异。如图3所示，所述第一色阻层为红色阻层211，所述垫高色阻层220c的色阻材料相同于蓝色阻层213及绿色阻层212的组合，例如由上而下为蓝绿组合或绿蓝组合。
在一些实施例中，所述第一色阻层为蓝色阻层213，所述垫高色阻层220c的色阻材料相同于红色阻层211及绿色阻层212的组合，例如由上而下为红绿组合或绿红组合。
在一些实施例中，所述第一色阻层为绿色阻层212，所述垫高色阻层220c的色阻材料相同于红色阻层211及蓝色阻层213的组合，例如由上而下为红蓝组合或蓝红组合。
在一实施例中，彩色滤光层210的多个色阻层中亦可例如包括黄色或其他颜色的色阻层。
在一些实施例中，所述彩色滤光层210包括色阻材料相异的所述第一色阻层、第二色阻层、第三色阻层与第四色阻层，例如红色阻层211、绿色阻层212、蓝色阻层213与白色阻层。其中，所述第一色阻层为红色阻层211、蓝色阻层213、绿色阻层212与白色阻层之一。
在一些实施例中，所述垫高色阻层220c的色阻材料与第一色阻层相异，但相同于其它色阻层的色阻材料，可在形成其它色阻层的形成程序中同时完成，或是另增加形成程序而完成。
图4为显示依据本申请的方法，应用于液晶显示面板中的形成复合垫高结构的横截面示意图。在一些实施例中，所述第一基板10为主动开关阵列基板，所述彩色滤光层210形成于所述第二基板20，所述垫高色阻层220d与所述第一基板10的主动开关为对向设置，所述第一间隔物301形成于所述垫高色阻层220d与所述第一基板10的主动开关之间。所以主间隔物301和辅间隔物302的段差是主动开关，包括金属层(M2)111、掺杂半导体层(N+)112、半导体层(a-Si)113等结构，再加上垫高色阻层220d的厚度总和。
在一些实施例中，所述第一基板10为主动开关阵列基板，所述彩色滤光层210形成于所述第一基板10，所述第二基板20包括遮光层，所述垫高色阻层220d与所述遮光层为对向设置，所述第一间隔物301形成于所述垫高色阻层220d与所述遮光层之间。
在本申请一实施例中，本申请的一种液晶面板的制造方法，包括：提供对向设置的第一基板10与第二基板20；形成彩色滤光层210于所述第一基板10及所述第二基板20之一，所述彩色滤光层210包括多个色阻层，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层；形成多个光间隔物于所述第一基板10与所述第二基板20之间，用以定义液晶间隔空间，所述第一间隔物301设置在所述垫高色阻层上，所述第二间隔物302设置于所述第一色阻层上，所述第一间隔物301及所述垫高色阻层的总和高度高于所述第二间隔物302的高度；形成一液晶层30于所述第一基板10以及所述第二基板20之间。
本申请可以在不大幅改变现有生产流程的前提，增加液晶显示面板的主、辅间隔物302的段差，提升液晶示面板的液晶裕度，改善量产良率。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。此用语通常不是指相同的实施例；但它也可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词，除非其前后文意显示出其它意思。
以上所述，仅是本申请的较佳实施例而已，并非对本申请作任何形式上的限制，虽然本申请已以较佳实施例揭露如上，然而并非用以限定本申请，任何熟悉本专业的技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (15)

  1. 一种液晶面板，包括：
    第一基板；
    第二基板，与所述第一基板对向设置；
    彩色滤光层，包括多个色阻层，形成于所述第一基板及所述第二基板之一；
    多个光间隔物，位于所述第一基板与所述第二基板之间，用以定义液晶间隔空间；以及
    液晶层，位于所述第一基板与所述第二基板之间，并填满所述液晶间隔空间；
    其中，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层，所述多个光间隔物包括第一间隔物与第二间隔物，所述第一间隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度。
  2. 如权利要求1所述的液晶面板，其中，所述多个色阻层包括相异颜色的三个色阻层。
  3. 如权利要求2所述的液晶面板，其中，所述多个色阻层包括相异颜色的三个色阻层时，所述第一色阻层为红色阻层、蓝色阻层与绿色阻层之一。
  4. 如权利要求1所述的液晶面板，其中，所述多个色阻层包括相异颜色的四个色阻层。
  5. 如权利要求4所述的液晶面板，其中，所述多个色阻层包括相异颜色的四个色阻层，所述第一色阻层为红色阻层、蓝色阻层、绿色阻层与白色阻层之一。
  6. 如权利要求1所述的液晶面板，其中，所述垫高色阻层与所述第一色阻层的色阻材料为相异。
  7. 如权利要求1所述的液晶面板，其中，所述垫高色阻层包括至少一层的垫高结构。
  8. 如权利要求7所述的液晶面板，其中，所述垫高结构每层的色阻材料为相异。
  9. 如权利要求1所述的液晶面板，其中，所述第一基板为主动开关阵列基板，所述彩色滤光层形成于所述第二基板，所述垫高色阻层与所述第一基板的主动开关为对向设置，所述第一间隔物形成于所述垫高色阻层与所述第一基板的主动开关之间。
  10. 如权利要求1所述的液晶面板，其中，所述第一基板为主动开关阵列基板，所述彩色滤光层形成于所述第一基板，所述第二基板包括遮光层，所述垫高色阻层与所述遮光层为对向设置，所述第一间隔物形成于所述垫高色阻层与所述遮光层之间。
  11. 一种液晶面板的制造方法，包括：
    提供对向设置的第一基板与第二基板；
    形成彩色滤光层于所述第一基板及所述第二基板之一，所述彩色滤光层包括多个色阻层，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层；
    形成多个光间隔物于所述第一基板与所述第二基板之间，用以定义液晶间隔空间，所述第一间 隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度；以及
    形成一液晶层于所述第一基板以及所述第二基板之间。
  12. 如权利要求11所述的液晶面板的制造方法，其中，所述垫高色阻层与所述第一色阻层的色阻材料为相异。
  13. 如权利要求11所述的液晶面板的制造方法，其中，所述垫高色阻层包括至少一层的垫高结构。
  14. 如权利要求13所述的液晶面板的制造方法，其中，所述垫高结构每层的色阻材料为相异。
  15. 一种液晶面板，包括：
    第一基板；
    第二基板，与所述第一基板对向设置；
    彩色滤光层，包括多个色阻层，形成于所述第一基板及所述第二基板之一；
    多个光间隔物，位于所述第一基板与所述第二基板之间，用以定义液晶间隔空间；以及
    液晶层，位于所述第一基板与所述第二基板之间，并填满所述液晶间隔空间；
    其中，所述多个色阻层包括第一色阻层，所述第一色阻层上形成有垫高色阻层；
    其中，所述多个光间隔物包括第一间隔物与第二间隔物，所述第一间隔物设置在所述垫高色阻层上，所述第二间隔物设置于所述第一色阻层上，所述第一间隔物及所述垫高色阻层的总和高度高于所述第二间隔物的高度；
    其中，所述垫高色阻层包括至少一层的垫高结构，所述垫高结构每层的色阻材料为相异；
    其中，所述第一色阻层为红色阻层，所述垫高色阻层的色阻材料相同于蓝色阻层及绿色阻层的组合。
PCT/CN2017/084670 2017-04-24 2017-05-17 液晶面板及其制造方法 Ceased WO2018196052A1 (zh)

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CN208969389U (zh) * 2018-09-28 2019-06-11 惠科股份有限公司 显示面板及显示装置
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CN208705625U (zh) * 2018-09-30 2019-04-05 惠科股份有限公司 彩膜基板和显示面板
CN109283752B (zh) * 2018-10-30 2021-02-12 惠科股份有限公司 一种显示面板、显示面板的制造方法和显示装置
CN111176026B (zh) * 2018-11-12 2025-08-29 惠科股份有限公司 一种显示面板及显示装置
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