WO2018120852A1 - 液晶显示面板的制造方法 - Google Patents

液晶显示面板的制造方法 Download PDF

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Publication number
WO2018120852A1
WO2018120852A1 PCT/CN2017/097877 CN2017097877W WO2018120852A1 WO 2018120852 A1 WO2018120852 A1 WO 2018120852A1 CN 2017097877 W CN2017097877 W CN 2017097877W WO 2018120852 A1 WO2018120852 A1 WO 2018120852A1
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Prior art keywords
layer
color filter
substrate
liquid crystal
crystal display
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/097877
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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 US15/561,829 priority Critical patent/US20180246370A1/en
Publication of WO2018120852A1 publication Critical patent/WO2018120852A1/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
    • 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
    • G02F1/136—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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates
    • 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
    • G02F1/133357—Planarisation layers
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • 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
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/40—Arrangements for improving the aperture ratio

Definitions

  • the present application relates to a method of fabricating a liquid crystal display panel, and more particularly to a method of fabricating a color filter on TFT (COT) liquid crystal display panel on a transistor.
  • COT color filter on TFT
  • COT color filter on TFT
  • TFT thin film transistor
  • the screen process of the COT technology, the display area and the edge area are easily caused by the difference in the terrain, resulting in poor diffusion of the liquid crystal, resulting in the occurrence of vacuum bubbles at the edges during the process of forming the box. Therefore, overcoming the edge vacuum bubble is a problem that the COT process has been working hard.
  • an object of the present application is to provide a method of manufacturing a liquid crystal display panel, including:
  • the flat layer has a second thickness, the second thickness having the same thickness as the first thickness, such that the flat layer is flush with the color filter layer, the flat layer and the filter The color layer layers are connected to form the same plane.
  • the planar layer includes a red color filter layer, a green color filter layer, and a blue color filter layer.
  • the planar layer is a red color filter layer, a green color filter layer, or a blue color filter layer.
  • the planar layer is a white color filter layer.
  • the planar layer is a layer of polymeric material.
  • the first substrate is provided with a support post.
  • a black matrix is further included between the first substrate and the support post.
  • a secondary support pillar is formed on the planarization layer.
  • the length of the secondary support post is less than the length of the support post.
  • the secondary support post is integrally formed on the flat layer.
  • the secondary support pillars are formed simultaneously with the planar layer in the same reticle process.
  • the present application also provides a method of manufacturing a liquid crystal display panel, including:
  • the first substrate is provided with a support column
  • the flat layer has a second thickness, the second thickness having the same thickness as the first thickness, such that the flat layer is flush with the color filter layer, the flat layer and the filter
  • the color layer layers are connected to form the same plane;
  • a secondary support pillar is formed on the flat layer, wherein the length of the secondary support pillar is smaller than the length of the support pillar.
  • the beneficial effects of the present application are that the flat layer is flush with the color filter layer through the process of the color filter layer, and the flat layer and the color filter layer are connected to form the same plane, thereby solving the display area and
  • the large difference between the edge regions causes the edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the formation of the box, and at the same time, the area of the circuit area of the frame area can be reduced to achieve a smaller substrate.
  • the beneficial effects of the present application are that the same material is used by the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.
  • FIG. 1a is a schematic diagram of a screen process of a COT technology of a known process of the present application.
  • FIG. 1b is a schematic diagram of the screen process vacuum bubble generation of the COT technology of the known process of the present application.
  • FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application.
  • FIG. 2b is a schematic diagram of an edge region and a display region of a liquid crystal display panel according to an embodiment of the present application.
  • 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 3a is a schematic view showing a flat layer of a liquid crystal display panel according to an embodiment of the present invention as a three-color filter layer.
  • 3b is a schematic view showing a flat layer of a liquid crystal display panel according to an embodiment of the present invention as a single color filter layer.
  • 3c is a schematic view showing a flat layer of a liquid crystal display panel of the embodiment of the present application as a white color filter layer.
  • FIG. 4 is a schematic view showing a flat layer and a color filter layer of a liquid crystal display panel according to an embodiment 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.
  • FIG. 1a is a schematic diagram of a screen process of an exemplary COT technology of the present application.
  • FIG. 1b is a schematic diagram of a screen process vacuum bubble generation of the exemplary COT technology of the present application, and a screen process of the COT technology, which is displayed.
  • the area and the edge area are liable to cause a gap D due to the difference in the topography, resulting in poor diffusion of the liquid crystal, resulting in a problem that the vacuum bubble 100 is generated at the edge during the process of forming the box.
  • FIG. 2a-2b FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application, and FIG.
  • the liquid crystal display panel of the present application includes: a first substrate, a second substrate 10 having a display area 11 and a frame area 12, the frame area 12 being located at an edge of the second substrate 10 and surrounding the display area 11 a color filter layer 20 on the display area 11 of the second substrate 10, the color filter layer 20 has a first thickness D1; a flat layer 30 on the second substrate 10
  • the frame region 12 is surrounded by the color filter layer 20, wherein the flat layer 30 has a second thickness D2, and the second thickness D2 has the same thickness as the first thickness D1.
  • the flat layer 30 is flush with the color filter layer 20, and the flat layer 30 is connected to the color filter layer 20 to form a same plane. Further, a support pillar 40 is located in the color filter layer. 20, and a first substrate 50 is located on the support post 40, and the support post 40 is used to support the first substrate 50.
  • a black matrix 60 is further included between the first substrate 50 and the support pillar 40.
  • FIG. 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • the gate dielectric layer 31 of the edge region defines an via hole using an additional photomask as a bridge function on the circuit signal, so that the planar layer 30 can directly cover the gate dielectric layer 31, And there is no need to make any through hole design on the flat layer 30.
  • FIG. 3a is a schematic diagram of a flat layer of a three-color filter layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 includes a red color filter layer, a green color filter layer, and a blue color filter layer, that is, three color filter layers are simultaneously present.
  • FIG. 3b is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 is a red color filter layer, a green color filter layer or a blue color filter layer, that is, a monochromatic color filter layer.
  • FIG. 3c is a schematic diagram of a flat color layer of a liquid crystal display panel according to an embodiment of the present invention.
  • the flat 30 layer is a white color filter layer.
  • the flat layer 30 is a polymer material layer.
  • the flat layer has a second thickness, and the second thickness has the same thickness as the first thickness, so that the flat layer is flush with the color filter layer, and the flat layer is
  • the color filter layers are connected to form the same plane, so that the large difference between the display area and the edge area is solved, which causes the edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the box formation, and the use area of the circuit design end can be effectively reduced and the box can be improved. After the yield, the substrate is smaller.
  • the beneficial effects of the present application are that the same material is used by the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.
  • the present application further includes a liquid crystal display device including: a first substrate 50; a second substrate 10; and a liquid crystal layer between the first substrate 50 and the second substrate 10.
  • a liquid crystal display device including: a first substrate 50; a second substrate 10; and a liquid crystal layer between the first substrate 50 and the second substrate 10.
  • FIG. 2a is a schematic diagram of a flat layer of a liquid crystal display panel according to an embodiment of the present application
  • FIG. 2b is a schematic diagram of an edge region and a display area of the liquid crystal display panel according to an embodiment of the present application.
  • the second substrate has a color filter layer 20, a flat layer 30, a display area 11 and a frame area 12, and the frame area 12 is located at the edge of the second substrate 10 and surrounds the display area 11;
  • the color filter layer 20 is located on the display area 11 of the second substrate 10, the color filter layer 20 has a first thickness D1;
  • a flat layer 30 is located on the second substrate 10.
  • the frame region 12 is surrounded by the color filter layer 20, wherein the flat layer 30 has a second thickness D2, and the second thickness D2 has the same thickness as the first thickness D1.
  • the flat layer 30 is flush with the color filter layer 20, and the flat layer 30 is connected to the color filter layer 20 to form a same plane.
  • a support pillar 40 is located in the color filter layer. 20, and a first substrate 50 is located on the support column 40, the support column 40 is used to support the first substrate 50, and further, located at A black matrix 60 is further included between the first substrate 50 and the support pillar 40.
  • FIG. 2c is a schematic diagram of a gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • 2d is a schematic diagram of a flat layer covering gate circuit of a liquid crystal display panel according to an embodiment of the present application.
  • the gate dielectric layer 31 of the edge region defines an via hole using an additional photomask as a bridge function on the circuit signal, so that the planar layer 30 can directly cover the gate dielectric layer 31, And there is no need to make any through hole design on the flat layer 30.
  • FIG. 3a is a schematic diagram of a flat layer of a three-color filter layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 includes a red color filter layer, a green color filter layer, and a blue color filter layer, that is, three color filter layers are simultaneously present.
  • FIG. 3b is a schematic diagram of the flat layer of the liquid crystal display panel of the embodiment of the present application as a single color filter layer.
  • the flat layer 30 is a red color filter layer, a green color filter layer or a blue color filter layer, that is, a monochromatic color filter layer.
  • FIG. 3c is a schematic diagram of a flat color layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat 30 layer is a white color filter. Floor.
  • a method of manufacturing a liquid crystal display panel of the present application comprising:
  • the flat layer 30 has a second thickness, and the second thickness has the same thickness as the first thickness, so that the flat layer is flush with the color filter layer 20, and the flat layer is The color filter layers are connected to form the same plane.
  • the material of this specific color filter can be utilized to simultaneously form the flat layer 30.
  • the planar layer 30 may be of the same material as at least a portion of the material of the color filter layer 20.
  • the color filter layer 20 is formed on an active switch (such as TFT) array (not labeled) of the second substrate 10.
  • FIG. 4 is a schematic diagram of a flat layer and a color filter layer of a liquid crystal display panel according to an embodiment of the present application.
  • the flat layer 30 when the flat layer 30 is formed, it may be simultaneously formed.
  • the secondary support post 301 is on the flat layer, wherein the length of the secondary support post 301 is less than the length of the support post 40.
  • the sub-support pillar 301 can be integrally formed on the flat layer 30, that is, the sub-support pillar 301 and the flat layer 30 have the same material, and the sub-support pillar 301 and the flat layer 30 can be simultaneously in the same mask process. form.
  • the beneficial effects of the present application are that the present application is to have a second thickness through the flat layer, the second thickness having the same thickness as the first thickness, so that the flat layer is flush with the color filter layer,
  • the flat layer is connected to the color filter layer to form the same plane, so that the large difference between the display area and the edge area is solved, which causes the edge vacuum bubble problem caused by poor diffusion of the liquid crystal during the box formation, and the use area of the circuit design end can be effectively reduced.
  • the application of the present application is that the present application consists in using the same material through the color filter layer and the flat layer, so that the cost can be effectively reduced, and the yield after the box is improved.

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

Abstract

一种液晶显示面板的制造方法，包括：提供一第一基板（50）；提供一第二基板（10），其具有一显示区（11）及一边框区（12），边框区（12）位于第二基板（10）边缘且环绕显示区（11）；形成一滤色器层（20）于第二基板（10）的显示区（11）上，滤色器层（20）具有一第一厚度D1；形成一平坦层（30）于第二基板（10）的边框区（12）上，且环绕于滤色器层（20）；其中，平坦层（30）具有一第二厚度D2，第二厚度D2与第一厚度D1具有相同厚度，使平坦层（30）与滤色器层（20）平齐，平坦层（30）与滤色器层（20）连接形成同一平面。

Description

液晶显示面板的制造方法 技术领域
本申请涉及一种液晶显示面板的制造方法，特别是涉及一种晶体管上滤色器型(Color Filter On TFT，COT)液晶显示面板的制造方法。
背景技术
近来，使用形成在第一基板处的薄膜晶体管(Thin Film Transistor，TFT)和滤色器的晶体管上滤色器(Color Filter On TFT，COT)型液晶显示器，由于使第一基板和第二基板的配向边距(Alignment Margin)最小化进而增加孔径比的优点而被使用。
目前COT技术的屏幕工艺，其显示区与边缘区容易因为地形上的差异造成断差，使得液晶扩散不良，导致成盒过程中出现边缘处产生真空泡的问题。因此克服边缘真空泡是COT工艺一直努力的课题。
发明内容
为了解决上述技术问题，本申请的目的在于，提供一种液晶显示面板的制造方法，其包括：
提供一第一基板；
提供一第二基板，其具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
形成一滤色器层于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
形成一平坦层于所述第二基板的所述边框区上，且环绕于所述滤色器层，其中至少部分所述平坦层的材料是相同于所述滤色器层的至少部分材料；以及
形成液晶层于所述第一基板及所述第二基板之间；
其中，所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面。
在一些实施例中，所述平坦层包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层。
在一些实施例中，所述平坦层为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层。
在一些实施例中，所述平坦层为一白色滤色器层。
在一些实施例中，所述平坦层为高分子材料层。
在一些实施例中，所述第一基板设有支撑柱。
在一些实施例中，所述第一基板与所述支撑柱之间更包括黑色矩阵。
在一些实施例中，当形成所述平坦层时，形成次支撑柱于所述平坦层上。
在一些实施例中，所述次支撑柱的长度小于所述支撑柱的长度。
在一些实施例中，所述次支撑柱是一体成型于所述平坦层上。
在一些实施例中，所述次支撑柱与所述平坦层为同一光罩制程中同时形成。
本申请还提供一种液晶显示面板的制造方法，其包括：
提供一第一基板，所述第一基板设有支撑柱；
提供一第二基板，其具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
形成一滤色器层于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
形成一平坦层于所述第二基板的所述边框区上，且环绕于所述滤色器层，其中至少部分所述平坦层的材料是相同于所述滤色器层的至少部分材料；以及
形成液晶层于所述第一基板及所述第二基板之间；
其中，所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面；
其中，当形成所述平坦层时，形成次支撑柱于所述平坦层上，其中所述次支撑柱的长度是小于所述支撑柱的长度。
本申请的有益效果在于通过滤色器层的制程，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且同时可所缩减边框区的电路区使用面积，达到基板更小的目的。
进一步地，本申请的有益效果在于通过滤色器层与所述平坦层接使用相同材料，因此可有效降地成本，提高成盒后良率。
附图说明
图1a是本申请已知工艺的COT技术的屏幕工艺示意图。
图1b是本申请已知工艺的COT技术的屏幕工艺真空泡产生处示意图。
图2a是本申请一实施例的液晶显示面板的平坦层示意图。
图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。
图2c是本申请一实施例的液晶显示面板的闸极电路示意图。
图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。
图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。
图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。
图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图。
图4是本申请一实施例的液晶显示面板的平坦层及滤色器层示意图。
具体实施方式
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COT型液晶显示器及其边框设计其具体实施方式、结构、特征及其功效，详细说明如后。
请参阅图1a和图1b，图1a是本申请范例性的COT技术的屏幕工艺示意图，图1b是本申请范例性的COT技术的屏幕工艺真空泡产生处示意图，COT技术的屏幕工艺，其显示区与边缘区容易因为地形上的差异造成断差D，使得液晶扩散不良，导致成盒过程中出现边缘处产生真空泡100的问题。请参阅图2a～2b，图2a是本申请一实施例的液晶显示面板的平坦层示意图，图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。本申请液晶显示面板，包括：一第一基板，一第二基板10，具有一显示区11及一边框区12，所述边框区12位于所述第二基板10边缘且环绕所述显示区11；一滤色器层20，位于所述第二基板10的所述显示区11上，所述滤色器层20具有一第一厚度D1；一平坦层30，位于所述第二基板10的所述边框区12上，且环绕于所述滤色器层20，其特征在于，所述平坦层30具有一第二厚度D2，所述第二厚度D2与所述第一厚度D1具有相同厚度使所述平坦层30与所述滤色器层20平齐，所述平坦层30与所述滤色器层20连接形成有一同一平面，进一步地，一支撑柱40位于所述滤色器层20上，以及一第一基板50位于支撑柱40上，支撑柱40用以支撑第一基板50。
更进一步地，位于所述第一基板50与所述支撑柱40之间更包括黑色矩阵60。
请进一步参阅图2c～2d，图2c是本申请一实施例的液晶显示面板的闸极电路示意图。图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。在本申请的一实施例中，边缘区的闸极介电层31使用额外的光掩模版定义通孔以作为电路信号上面的桥接作用，因此平坦层30可直接覆盖闸极介电层31，且在平坦层30上不需不进行任何通孔设计。
接着，请参阅图3a，图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。在本申请的一实施例中，所述平坦层30包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层，也就是三色的滤色器层同时存在。
另外，请参阅图3b，图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。在本申请的一实施例中，所述平坦层30为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层，也就是仅单色的滤色器层。
进一步参阅图3c，图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图，在本申请的一实施例中，所述平坦30层为一白色滤色器层。
在本申请的一实施例中，所述平坦层30为高分子材料层。
本申请的有益效果在于通过平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且可有效缩减电路设计端的使用面积以及提高成盒后良率，达到基板更小的目的。
进一步地，本申请的有益效果在于通过滤色器层与所述平坦层接使用相同材料，因此可有效降地成本，提高成盒后良率。
进一步地，本申请更包括一种液晶显示装置包括：第一基板50；一第二基板10，及一液晶层，位于所述第一基板50及第二基板10之间，请再参阅图2a～图2b，图2a是本申请一实施例的液晶显示面板的平坦层示意图，图2b是本申请一实施例的液晶显示面板的边缘区及显示区示意图。其中，所述第二基板具有滤色器层20、平坦层30、一显示区11及一边框区12，所述边框区12位于所述第二基板10边缘且环绕所述显示区11；一滤色器层20，是位于所述第二基板10的所述显示区11上，所述滤色器层20具有一第一厚度D1；一平坦层30，是位于所述第二基板10的所述边框区12上，且环绕于所述滤色器层20，其特征在于，所述平坦层30具有一第二厚度D2，所述第二厚度D2与所述第一厚度D1具有相同厚度使所述平坦层30与所述滤色器层20平齐，所述平坦层30与所述滤色器层20连接形成有一同一平面，进一步地，一支撑柱40位于所述滤色器层20上，以及一第一基板50位于支撑柱40上，支撑柱40用以支撑第一基板50，更进一步地，位于所 述第一基板50与所述支撑柱40之间更包括黑色矩阵60。
请再进一步参阅图2c和图2d，图2c是本申请一实施例的液晶显示面板的闸极电路示意图。图2d是本申请一实施例的液晶显示面板的平坦层覆盖闸极电路示意图。在本申请的一实施例中，边缘区的闸极介电层31使用额外的光掩模版定义通孔以作为电路信号上面的桥接作用，因此平坦层30可直接覆盖闸极介电层31，且在平坦层30上不需不进行任何通孔设计。
接着，请再参阅图3a，图3a是本申请一实施例的液晶显示面板的平坦层为三色滤色器层示意图。在本申请的一实施例中，所述平坦层30包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层，也就是三色的滤色器层同时存在。
另外，请再参阅图3b，图3b是本申请一实施例的液晶显示面板的平坦层为单一滤色器层示意图。在本申请的一实施例中，所述平坦层30为一红色滤色器层、一绿色滤色器层或一蓝色滤色器层，也就是仅单色的滤色器层。
请再进一步参阅图3c，图3c是本申请一实施例的液晶显示面板的平坦层为白色滤色器层示意图，在本申请的一实施例中，所述平坦30层为一白色滤色器层。
本申请的液晶显示面板的制造方法，其包括：
提供一第一基板50；
提供一第二基板10，其具有一显示区11及一边框区12，所述边框区位于所述第二基板边缘且环绕所述显示区；
形成一滤色器层20于所述第二基板10的所述显示区上，所述滤色器层具有一第一厚度；
形成一平坦层30于所述第二基板20的所述边框区12上，且环绕于所述滤色器层20，其中至少部分所述平坦层30的材料是相同于所述滤色器层20的至少部分材料；以及
形成液晶层(未显示)于所述第一基板50及所述第二基板10之间；
其中，所述平坦层30具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层20平齐，所述平坦层与所述滤色器层连接形成同一平面。
具体地，当形成滤色器层20的特定颜色滤色器时，可利用此特定颜色滤色器的材料来同时形成平坦层30。因此，至少部分所述平坦层30的材料可相同于所述滤色器层20的至少部分材料。
在本申请实施例中，滤色器层20是形成于第二基板10的主动开关(如TFT)数组(未标示)上。请再进一步参阅图4，图4是本申请一实施例的液晶显示面板的平坦层及滤色器层示意图，在本申请的一实施例中，当形成所述平坦层30时，可同时形成次支撑柱301于所述平坦层上，其中所述次支撑柱301的长度是小于所述支撑柱40的长度。次支撑柱301可一体成型于平坦层30上，亦即次支撑柱301与平坦层30具有相同的材料，且次支撑柱301与平坦层30可在同一光罩制程中同时 形成。
本申请的有益效果是本申请在于通过平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面，因此解决显示区与边缘区之间大段差导致成盒时液晶扩散不良所造成的边缘真空泡问题，且可有效缩减电路设计端的使用面积以及提高成盒后良率，达到基板更小的目的。
进一步地，本申请的有益效果是本申请在于通过滤色器层与所述平坦层接使用相同材料，因此可有效降地成本，提高成盒后良率。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例；但它亦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 (16)

  1. 一种液晶显示面板的制造方法，包括：
    提供一第一基板；
    提供一第二基板，其具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
    形成一滤色器层于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
    形成一平坦层于所述第二基板的所述边框区上，且环绕于所述滤色器层，其中至少部分所述平坦层的材料是相同于所述滤色器层的至少部分材料；以及
    形成液晶层于所述第一基板及所述第二基板之间；
    其中，所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面。
  2. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层覆盖有闸极介电层。
  3. 如权利要求1所述的液晶显示面板的制造方法，其中，所述滤色器层形成于所述第二基板的主动开关数组上。
  4. 如权利要求1所述的液晶显示面板的制造方法，所述平坦层包括一红色滤色器层、一绿色滤色器层及一蓝色滤色器层。
  5. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层为一红色滤色器层。
  6. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层为一绿色滤色器层。
  7. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层为一蓝色滤色器层。
  8. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层为一白色滤色器层。
  9. 如权利要求1所述的液晶显示面板的制造方法，其中，所述平坦层为高分子材料层。
  10. 如权利要求1所述的液晶显示面板的制造方法，其中，所述第一基板设有支撑柱。
  11. 如权利要求10所述的液晶显示面板的制造方法，所述第一基板与所述支撑柱之间更包括黑色矩阵。
  12. 如权利要求10所述的液晶显示面板的制造方法，其中，当形成所述平坦层时，形成次支撑柱于所述平坦层上。
  13. 如权利要求12所述的液晶显示面板的制造方法，其中，所述次支撑柱的长度小于所述支撑柱的长度。
  14. 如权利要求12所述的液晶显示面板的制造方法，其中，所述次支撑柱是一体成型于所述平坦层上。
  15. 如权利要求12所述的液晶显示面板的制造方法，其中，所述次支撑柱与所述平坦层为同一光罩制程中同时形成。
  16. 一种液晶显示面板的制造方法，包括：
    提供一第一基板，所述第一基板设有支撑柱；
    提供一第二基板，其具有一显示区及一边框区，所述边框区位于所述第二基板边缘且环绕所述显示区；
    形成一滤色器层于所述第二基板的所述显示区上，所述滤色器层具有一第一厚度；
    形成一平坦层于所述第二基板的所述边框区上，且环绕于所述滤色器层，其中至少部分所述平坦层的材料是相同于所述滤色器层的至少部分材料；以及
    形成液晶层于所述第一基板及所述第二基板之间；
    其中，所述平坦层具有一第二厚度，所述第二厚度与所述第一厚度具有相同厚度，使所述平坦层与所述滤色器层平齐，所述平坦层与所述滤色器层连接形成同一平面；
    其中，当形成所述平坦层时，形成次支撑柱于所述平坦层上，其中所述次支撑柱的长度是小于所述支撑柱的长度。
PCT/CN2017/097877 2016-12-30 2017-08-17 液晶显示面板的制造方法 Ceased WO2018120852A1 (zh)

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