WO2017173686A1 - 一种液晶显示面板及其制作方法 - Google Patents

一种液晶显示面板及其制作方法 Download PDF

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Publication number
WO2017173686A1
WO2017173686A1 PCT/CN2016/080436 CN2016080436W WO2017173686A1 WO 2017173686 A1 WO2017173686 A1 WO 2017173686A1 CN 2016080436 W CN2016080436 W CN 2016080436W WO 2017173686 A1 WO2017173686 A1 WO 2017173686A1
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WIPO (PCT)
Prior art keywords
substrate
liquid crystal
alignment
display panel
crystal display
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Ceased
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PCT/CN2016/080436
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English (en)
French (fr)
Inventor
叶成亮
林永伦
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US15/124,363 priority Critical patent/US20180157127A1/en
Publication of WO2017173686A1 publication Critical patent/WO2017173686A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • 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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a liquid crystal display panel and a method of fabricating the same.
  • the conventional liquid crystal display panel includes: a first substrate 10 and a second substrate 20, such as a COA (color) a filter on the substrate, that is, a color filter film is formed on the array substrate, the first substrate 10 includes a data line 12 and a scan line 11, and a black matrix 13 is disposed on the second substrate 20;
  • a COA color
  • the first substrate 10 includes a data line 12 and a scan line 11, and a black matrix 13 is disposed on the second substrate 20;
  • An alignment film material is coated on the inner side of the first substrate 10.
  • the image sensor is respectively disposed on the left side of the four partitions 101-104 of the pixel unit according to the position of the data line 12 on both sides of the pixel unit.
  • the two partitions and the two partitions on the right side are aligned up and down;
  • the inner side of the second substrate 20 is also coated with an alignment film material, and the projection of the pixel unit on the second substrate has two partitions 105, 106 in forming an alignment film
  • the image sensor performs left and right alignment according to the position of the black matrix 13 on both sides of the pixel unit; after the last two substrates are combined, four display domains are formed inside each pixel, as shown in FIG. 3, 201-204. Shown.
  • the first substrate is BOA (BM on In the case of the Array substrate
  • the black matrix on the second substrate 20 is also formed on the array substrate
  • the second substrate lacks the reference of the image sensor alignment, and the image sensor cannot be used for the opposite substrate of the BOA substrate.
  • the alignment makes the display effect worse.
  • the present invention constructs a liquid crystal display panel, which includes:
  • the first substrate includes:
  • a light shielding layer including a light shielding block
  • a device array layer including a data line, a scan line, and a pixel unit defined by the data line and the scan line;
  • first alignment film wherein the first alignment film is formed by photo-aligning the first alignment film material with the data line as a first light alignment reference
  • the second substrate comprises:
  • a spacer combination layer including a primary spacer and a secondary spacer, wherein the secondary spacer is spaced from the primary spacer;
  • a second alignment film formed by a photoalignment treatment of the second alignment film material with a line composed of at least two of the sub spacers being a second photo alignment reference;
  • the ratio of the sum of the lengths of the at least two of the second spacers to the length of the bus is greater than or equal to 50%, and the length of the bus is the total length of the line segments composed of at least two of the secondary spacers.
  • the ratio of the total length of at least two of the sub-spacers to the length of the bus is 80% or more.
  • the spacing between two adjacent sub-spacers in the second photo-alignment reference is greater than 0 micrometers and less than or equal to 80 micrometers.
  • the spacing between two adjacent sub-spacers in the second photo-alignment reference is greater than 6 micrometers and less than or equal to 30 micrometers.
  • the height of the main spacer is larger than the height of the sub-spacer.
  • the sub-spacer is formed by the same mask process as the main spacer.
  • the invention also provides a liquid crystal display panel comprising:
  • the first substrate includes:
  • a light shielding layer including a light shielding block
  • a device array layer including a data line, a scan line, and a pixel unit defined by the data line and the scan line;
  • first alignment film wherein the first alignment film is formed by photo-aligning the first alignment film material with the data line as a first light alignment reference
  • the second substrate comprises:
  • a first transparent conductive layer comprising an alignment auxiliary region
  • a second alignment film formed by photoaligning the second alignment film material with the alignment auxiliary region as a second optical alignment reference
  • the position of the alignment auxiliary region corresponds to a projection position of the scanning line on the second substrate.
  • the alignment auxiliary region is obtained by etching the first transparent conductive layer.
  • the alignment auxiliary region is obtained by subjecting the first transparent conductive layer to laser irradiation to carbonize the first transparent conductive layer.
  • the second substrate further includes a spacer combination layer, and the spacer combination layer includes a main spacer and a second spacer.
  • the height of the main spacer is larger than the height of the sub-spacer.
  • the sub-spacer is formed by the same mask process as the main spacer.
  • the sub-spacer is spaced apart from the main spacer.
  • the present invention also provides a method for fabricating the above liquid crystal display panel, which comprises the following steps:
  • the first substrate and the second substrate are combined, and the liquid crystal layer is disposed between the combined first substrate and the second substrate.
  • the position of the alignment auxiliary region corresponds to a projection position of the scanning line on the second substrate.
  • the alignment auxiliary region is obtained by etching the first transparent conductive layer.
  • the alignment auxiliary region is obtained by subjecting the first transparent conductive layer to laser irradiation to carbonize the first transparent conductive layer.
  • the transparent conductive layer on the color filter substrate is processed or the secondary spacer is used as the light alignment reference object, thereby improving the accuracy of the optical alignment alignment of the substrate and improving the display. effect.
  • FIG. 1 is a schematic view showing the light alignment of a single pixel on a first substrate of the prior art
  • FIG. 2 is a schematic diagram of light alignment of a single pixel on a second substrate of the prior art
  • FIG. 3 is a schematic view showing light alignment of a single pixel on a liquid crystal display panel of the prior art
  • FIG. 4 is a schematic view showing the light alignment of a single pixel on a second substrate of the present invention.
  • FIG. 5 is a schematic structural view of a first liquid crystal display panel of the present invention.
  • FIG. 6 is a schematic structural view of a second liquid crystal display panel of the present invention.
  • FIG. 4 is a schematic diagram of light alignment of a single pixel on a second substrate of the present invention.
  • the liquid crystal display panel of the present invention includes a first substrate, a second substrate, and a liquid crystal layer, and the liquid crystal layer is located between the first substrate and the second substrate.
  • the first substrate includes: a color resist layer, a light shielding layer, a device array layer, and a first alignment film;
  • the light shielding layer includes a light shielding block, that is, a black matrix;
  • the device array layer includes a data line, a scan line, and a a pixel unit defined by the data line and the scan line; wherein the first alignment film is formed by photo-aligning the first alignment film material with the data line as a first light alignment reference.
  • the second substrate 30 includes a spacer combination layer and a second alignment film; the spacer combination layer includes a main spacer and a second spacer; as shown in FIG. 4, the second alignment film is at least two
  • the line formed by the sub-spacer 31 is a second photo-alignment reference material, and is formed by photo-alignment processing of the second alignment film material; that is, each of the second photo-alignment reference objects is separated by at least two of the sub-spaces.
  • the connection of sub-31 is composed.
  • the secondary spacer 31 is located within the projection area 303 of the scan line on the second substrate.
  • the first substrate may further include a second transparent conductive layer, and the second transparent conductive layer includes a pixel electrode.
  • the second substrate may further include a first transparent conductive layer, and the first transparent conductive layer includes a common electrode.
  • the ratio of the sum of the lengths of the at least two of the secondary spacers to the length of the bus is greater than or equal to 50%, and the length of the bus is the total length of the line segments composed of at least two of the secondary spacers.
  • the sum of the lengths of the five sub-spacers 31 accounts for 50% or more of the length L of the bus segment between the first and last intervals.
  • the ratio of the length of the at least two of the second spacers to the length of the bus is greater than or equal to 80%. Due to the dense distribution of the secondary spacers in the second optical alignment reference, the accuracy of the optical alignment alignment is higher, which further improves the display effect.
  • the spacing between two adjacent sub-spacers in the second photo-alignment reference is greater than 0 micrometers and less than or equal to 80 micrometers.
  • the pitch is from 6 micrometers to 30 micrometers. The distance is too large and the alignment accuracy cannot meet the requirements of higher precision.
  • the primary spacer is spaced apart from the secondary spacer. That is, the positions of the primary spacer and the secondary spacer do not overlap to avoid damage to the existing primary spacer.
  • the height of the primary spacer is greater than the height of the secondary spacer, and the supporting effect of the primary spacer can be avoided.
  • the first alignment film includes a first region 101, a second region 102, a third region 103, and a fourth region 104; wherein the alignment of the first region 101 and the second region 102
  • the film is arranged in a first direction, such as downward; the alignment films of the third region 103 and the fourth region 104 are arranged in a second direction, such as upward;
  • the second alignment film includes a fifth region 301 and a sixth region 302; wherein the alignment film of the fifth region 301 is arranged in a third direction; for example, arranged to the left, The alignment film of the sixth region is arranged in the fourth direction, for example, to the right; the fifth region 301 corresponds to the first region 101 and the third region 103, and the sixth region 302 is The second area 102 corresponds to the fourth area 104.
  • the two substrates are combined such that the pixel unit has four display domains.
  • the first area, the second area, the third area, and the fourth area are equal in area; the areas of the fifth area and the sixth area are equal; thereby facilitating four Display domains of equal size make the panel display more uniform color and improve contrast.
  • the manufacturing method of the liquid crystal display panel of the present invention comprises the following steps:
  • the first alignment film material is, for example, polyimide, and the first alignment film may be formed on the first substrate after being irradiated with polarized light.
  • the second alignment film material on the second substrate is optically aligned to form a second optical alignment reference on the second substrate, with a connection line composed of at least two of the second spacers as a second optical alignment reference.
  • the second alignment film material is, for example, polyimide, and after the irradiation with the polarized light, the second alignment film may be formed on the second substrate; that is, each of the second light alignment reference objects is a connection of at least two of said secondary spacers;
  • the ratio of the sum of the lengths of the at least two of the secondary spacers to the length of the bus is greater than or equal to 50%, and the length of the bus is the total length of the line segments composed of at least two of the secondary spacers.
  • the sum of the lengths of the five sub-spacers 31 accounts for 50% or more of the length L of the bus segment between the first and last intervals.
  • the ratio of the length of the at least two of the second spacers to the length of the bus is greater than or equal to 80%. Due to the dense distribution of the secondary spacers in the second optical alignment reference, the accuracy of the optical alignment alignment is higher, which further improves the display effect.
  • the secondary spacer is formed by the same mask process as the primary spacer, thereby saving production costs.
  • the spacing between two adjacent sub-spacers in the second photo-alignment reference is greater than 0 micrometers and less than or equal to 80 micrometers. The distance is too large and the alignment accuracy cannot meet the requirements of higher precision.
  • the primary spacer is spaced apart from the secondary spacer. That is, the positions of the primary spacer and the secondary spacer do not overlap to avoid damage to the existing primary spacer.
  • the height of the primary spacer is greater than the height of the secondary spacer, and the supporting effect of the primary spacer can be avoided.
  • the first alignment film includes a first region 101, a second region 102, a third region 103, and a fourth region 104; wherein the alignment of the first region 101 and the second region 102
  • the film is arranged in a first direction, such as downward; the alignment films of the third region 103 and the fourth region 104 are arranged in a second direction, such as upward;
  • the second alignment film includes a fifth region 301 and a sixth region 302; wherein the alignment film of the fifth region 301 is arranged in a third direction; for example, arranged to the left, The alignment film of the sixth region is arranged in the fourth direction, for example, to the right; the fifth region 301 corresponds to the first region 101 and the third region 103, and the sixth region 302 is The second area 102 corresponds to the fourth area 104.
  • the two substrates are combined such that the pixel unit has four display domains.
  • the first area, the second area, the third area, and the fourth area are equal in area; the areas of the fifth area and the sixth area are equal; thereby facilitating four Display domains of equal size make the panel display more uniform color and improve contrast.
  • the optical alignment alignment accuracy of the substrate is improved, and the display effect is improved.
  • FIG. 5 is a schematic structural diagram of a first liquid crystal display panel of the present invention.
  • a liquid crystal display panel of the present invention includes: a first substrate, a second substrate, and a liquid crystal layer, the liquid crystal layer being located between the first substrate and the second substrate.
  • the first substrate 40 is, for example, BOA (BM on Array) substrate.
  • the first substrate 40 includes: a first base substrate 41, a first metal layer 42 on the base substrate 11, including a gate; and a gate insulating layer 43 partially located on the first metal layer 42 for isolation
  • the second metal layer 45 is located on the active layer 44, including a source and a drain
  • the color resist layer 47 is located at the second
  • the insulating layer 46 includes a plurality of color film color resists (such as a red color film, a green color film, and a blue color film), and the color resist layer 47 is formed with a via hole
  • the light shielding layer 48 Located on the color resist layer 47, the light shielding layer 48 includes a light shielding block, that is, a black matrix; and the second transparent conductive layer 49 is partially located on the light
  • the first substrate further includes a device array layer including a data line, a scan line, and a pixel unit defined by the data line and the scan line; the first alignment film is The first alignment film material is photoaligned with the data line as a first light alignment reference material.
  • the second substrate includes a second substrate 51, a first transparent conductive layer 52, and a second alignment film; the second substrate may further include a spacer combination layer 53, the spacer combination The layer 53 includes a main spacer and a sub spacer; the first transparent conductive layer 52 includes an alignment auxiliary region 521; the first transparent conductive layer 52 further includes a common electrode.
  • the second alignment film is formed by the alignment auxiliary region 521 being a second optical alignment reference material as a second optical alignment reference material, and performing photoalignment treatment on the second alignment film material.
  • the position of the alignment auxiliary region 521 corresponds to a projected position of the scan line on the second substrate.
  • the alignment auxiliary region 521 is obtained by etching the first transparent conductive layer 52.
  • the transparent conductive layer corresponding to the scan line is etched by a yellow light process so that the image sensor detects the area, thereby facilitating optical alignment of the second alignment film material.
  • the alignment auxiliary region 522 is obtained by subjecting the first transparent conductive layer 52 to laser irradiation to carbonize the transparent conductive layer. Since the first transparent conductive layer corresponding to the scanning line is irradiated with a laser to carbonize the transparent conductive layer, the carbonized area is different from the gray level of the uncarbonized area, so that the image sensor can detect the area and realize the light. At the same time, the production process can be saved and the production cost can be saved.
  • the manufacturing method of the liquid crystal display panel of the present invention comprises the following steps:
  • the first alignment film material is, for example, polyimide, and the first alignment film may be formed on the first substrate after being irradiated with polarized light.
  • the second alignment film material is, for example, polyimide, and the second alignment film may be formed on the second substrate after being irradiated with polarized light.
  • the position of the alignment auxiliary region 521 corresponds to a projected position of the scan line on the second substrate.
  • the alignment auxiliary region 521 is obtained by etching the first transparent conductive layer 52.
  • the transparent conductive layer corresponding to the scan line is etched by a yellow light process so that the image sensor detects the area, thereby facilitating optical alignment of the second alignment film material.

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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)
  • Spectroscopy & Molecular Physics (AREA)
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Abstract

一种液晶显示面板及其制作方法，所述液晶显示面板包括：第一基板（40）包括第一配向膜，所述第一配向膜是以数据线为第一光配向参照物，对第一配向膜材料进行光配向处理形成的；第二基板（30）包括第二配向膜，所述第二配向膜是以至少两个次间隔子（31）组成的连线为第二光配向参照物，对第二配向膜材料进行光配向处理形成的。

Description

一种液晶显示面板及其制作方法 技术领域
本发明涉及液晶显示器技术领域，特别是涉及一种液晶显示面板及其制作方法。
 背景技术
如图1和2所示，现有的液晶显示面板包括：第一基板10、第二基板20，第一基板10譬如为COA（color filter on array）基板，即在阵列基板上制作彩色滤光膜，第一基板10包括数据线12和扫描线11，第二基板20上设置有黑色矩阵13；
在第一基板10的内侧涂布有配向膜材料，在形成配向膜时，图像传感器根据像素单元两侧的数据线12的位置，分别对像素单元的四个分区101-104中，左侧的两个分区和右侧的两个分区进行上下配向；在第二基板20的内侧也涂布有配向膜材料，像素单元在第二基板上的投影具有两个分区105、106，在形成配向膜时，图像传感器根据像素单元两侧的黑色矩阵13的位置，对这两个分区进行左右配向；最后两个基板组合后，使得每个像素内部形成四个显示畴，如图3中201-204所示。
但是，当第一基板为BOA（BM on Array）基板时，由于BOA基板是将第二基板20上的黑色矩阵也制作在阵列基板上，因此使得第二基板缺少图像传感器对位的基准，无法对BOA基板的对置基板使用图像传感器进行对位，使得显示效果较差。
因此，有必要提供一种液晶显示面板及其制作方法，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板及其制作方法，以解决现有技术中无法对BOA基板的对置基板使用图像传感器进行对位，显示效果较差的技术问题。
 技术解决方案
为解决上述技术问题，本发明构造了一种液晶显示面板，其包括：
第一基板，包括：
色阻层；
遮光层，包括遮光块；
器件阵列层，包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；以及
第一配向膜，所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理形成的；
第二基板，包括：
间隔件组合层，包括主间隔子、次间隔子，所述次间隔子与所述主间隔子间隔设置；以及
第二配向膜，所述第二配向膜是以至少两个所述次间隔子组成的连线为第二光配向参照物，对第二配向膜材料进行光配向处理形成的；以及
液晶层，位于所述第一基板和所述第二基板之间；
其中，至少两个所述次间隔子的长度总和与总线长度的比例大于等于50%，所述总线长度为至少两个所述次间隔子组成的线段的总长度。
在本发明的液晶显示面板中，至少两个所述次间隔子的长度总和与所述总线长度的比例大于等于80%。
在本发明的液晶显示面板中，所述第二光配向参照物中相邻两个所述次间隔子之间的间距大于0微米小于等于80微米。
在本发明的液晶显示面板中，所述第二光配向参照物中相邻两个所述次间隔子之间的间距大于6微米小于等于30微米。
在本发明的液晶显示面板中，所述主间隔子的高度大于所述次间隔子的高度。
在本发明的液晶显示面板中，所述次间隔子是与所述主间隔子相同的光罩工序形成的。
本发明还提供一种液晶显示面板，其包括：
第一基板，包括：
色阻层；
遮光层，包括遮光块；
器件阵列层，包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；以及
第一配向膜，所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理形成的；
第二基板，包括：
第一透明导电层，包括配向辅助区；
第二配向膜，所述第二配向膜是以所述配向辅助区为第二光配向参照物，对第二配向膜材料进行光配向处理形成的；以及
液晶层，位于所述第一基板和所述第二基板之间。
在本发明的液晶显示面板中，所述配向辅助区的位置与所述扫描线在所述第二基板上的投影位置相对应。
在本发明的液晶显示面板中，所述配向辅助区是通过对所述第一透明导电层进行刻蚀得到的。
在本发明的液晶显示面板中，所述配向辅助区是通过对所述第一透明导电层进行激光照射，以使所述第一透明导电层碳化得到的。
在本发明的液晶显示面板中，所述第二基板还包括间隔件组合层，所述间隔件组合层包括主间隔子、次间隔子。
在本发明的液晶显示面板中，所述主间隔子的高度大于所述次间隔子的高度。
在本发明的液晶显示面板中，所述次间隔子是与所述主间隔子相同的光罩工序形成的。
在本发明的液晶显示面板中，所述次间隔子与所述主间隔子间隔设置。
本发明还提供一种上述液晶显示面板的制作方法，其包括以下步骤：
以所述数据线作为所述第一光配向参照物，对所述第一基板上的第一配向膜材料进行光配向处理，以在所述第一基板上形成所述第一配向膜；
以所述配向辅助区作为第二光配向参照物对所述第二基板上的第二配向膜材料进行光配向处理，以在所述第二基板上形成所述第二配向膜；
将所述第一基板和所述第二基板进行组合，并在组合后的所述第一基板和所述第二基板之间设置所述液晶层。
在本发明的液晶显示面板的制作方法中，所述配向辅助区的位置与所述扫描线在所述第二基板上的投影位置相对应。
在本发明的液晶显示面板的制作方法中，所述配向辅助区是通过对所述第一透明导电层进行刻蚀得到的。
在本发明的液晶显示面板的制作方法中，所述配向辅助区是通过对所述第一透明导电层进行激光照射，以使所述第一透明导电层碳化得到的。
 有益效果
本发明的液晶显示面板及其制作方法，通过对彩膜基板上的透明导电层进行处理或者以次间隔子作为光配向参照物，从而提高该基板的光配向对位的准确度，提高了显示效果。
附图说明
图1为现有技术的第一基板上单个像素的光配向示意图；
图2为现有技术的第二基板上单个像素的光配向示意图；
图3为现有技术的液晶显示面板上单个像素的光配向示意图；
图4为本发明的第二基板上单个像素的光配向示意图。
图5为本发明的第一种液晶显示面板的结构示意图。
图6为本发明的第二种液晶显示面板的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，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发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
请参照图4，图4为本发明的第二基板上单个像素的光配向示意图。
本发明的液晶显示面板，包括：第一基板、第二基板、液晶层，所述液晶层位于所述第一基板和所述第二基板之间。
其中所述第一基板包括：色阻层、遮光层，器件阵列层、第一配向膜；所述遮光层包括遮光块，即黑色矩阵；所述器件阵列层包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理来形成的。
所述第二基板30包括间隔件组合层、第二配向膜；所述间隔件组合层包括主间隔子、次间隔子；如图4所示，所述第二配向膜是以至少两个所述次间隔子31组成的连线为第二光配向参照物，对第二配向膜材料进行光配向处理来形成的；即每个所述第二光配向参照物由至少两个所述次间隔子31的连线组成。另外，次间隔子31位于扫描线在第二基板上的投影区域303内。
所述第一基板还可包括第二透明导电层，所述第二透明导电层包括像素电极。所述第二基板还可包括第一透明导电层，所述第一透明导电层包括公共电极。
由于现有技术的液晶显示面板的第二基板上没有设置黑色矩阵，导致无法设置图像传感器光配向的具体位置，使机台按照预定参数进行配向，从而无法导致无法设置图像传感器进行光配向的具体位置，使机台按照预定参数进行配向；而由于次间隔子存在一定高度，其边缘区域反光效果与周边区域不同，从而可以使图像传感器根据该反光效果追踪形成第二光配向参照物，方便图像传感器设置光配向的具体位置，提高了光配向对位的准确性，提高了显示效果。
优选地，至少两个所述次间隔子的长度总和与总线长度的比例大于等于50%，所述总线长度为至少两个所述次间隔子组成的线段的总长度。比如以图4为例，5个次间隔子31的长度总和（也即沿水平方向的长度总和）占始末次间隔子之间的总线段长度L的比例大于等于50%。进一步地，至少两个所述次间隔子的长度总和与总线长度的比例大于等于80%。由于第二光配向参照物中次间隔子分布的越密集，使得光配向对位的准确度更高，进一步提高了显示效果。
优选地，所述次间隔子是与所述主间隔子相同的光罩工序形成的，从而节省生产成本。
优选地，所述第二光配向参照物中相邻两个所述次间隔子之间的间距为大于0微米小于等于80微米。进一步地，该间距为6微米至30微米。距离太大，对位准确度不能满足较高精度的要求。
优选地，所述主间隔子与所述次间隔子间隔设置。即主间隔子与次间隔子的位置不重叠，以避免对现有主间隔子造成破坏。
优选地，所述主间隔子的高度大于所述次间隔子的高度，能够避免影响主间隔子的支撑作用。
优选地，结合图1，所述第一配向膜包括第一区域101、第二区域102、第三区域103、第四区域104；其中所述第一区域101和所述第二区域102的配向膜沿第一方向排布，譬如向下排布；所述第三区域103和所述第四区域104的配向膜沿第二方向排布，譬如向上排布；
优选地，如图4所示，所述第二配向膜包括第五区域301、第六区域302；其中所述第五区域301的配向膜沿第三方向排布；譬如向左排布，所述第六区域的配向膜沿第四方向排布，譬如向右排布；所述第五区域301与所述第一区域101和所述第三区域103对应，所使第六区域302与所述第二区域102和所述第四区域104对应。从而将两个基板组合后，使得所述像素单元具有四个显示畴。
优选地，所述第一区域、所述第二区域、所述第三区域、以及所述第四区域面积相等；所述第五区域和所述第六区域的面积相等；从而便于得到四个面积大小相等的显示畴，使面板显示的色彩更加均匀，提高对比度。
本发明的液晶显示面板的制作方法包括以下步骤：
S101、以所述数据线作为第一光配向参照物，对所述第一基板上的第一配向膜材料进行光配向处理，以在所述第一基板上形成所述第一配向膜；
所述第一配向膜材料譬如为聚酰亚胺，使用偏正光对其照射后，可在所述第一基板上形成所述第一配向膜。
S102、以至少两个所述次间隔子组成的连线作为第二光配向参照物，对所述第二基板上的第二配向膜材料进行光配向处理，以在所述第二基板上形成所述第二配向膜；
所述第二配向膜材料譬如为聚酰亚胺，使用偏正光对其照射后，可在所述第二基板上形成所述第二配向膜；即每个所述第二光配向参照物由至少两个所述次间隔子的连线组成；
S103、将所述第一基板和所述第二基板进行组合，并在组合后的所述第一基板和所述第二基板之间设置所述液晶层。
优选地，至少两个所述次间隔子的长度总和与总线长度的比例大于等于50%，所述总线长度为至少两个所述次间隔子组成的线段的总长度。比如以图4为例，5个次间隔子31的长度总和（也即沿水平方向的长度总和）占始末次间隔子之间的总线段长度L的比例大于等于50%。进一步地，至少两个所述次间隔子的长度总和与总线长度的比例大于等于80%。由于第二光配向参照物中次间隔子分布的越密集，使得光配向对位的准确度更高，进一步提高了显示效果。
优选地，所述次间隔子是与所述主间隔子相同的光罩工序形成的，从而节省生产成本。
优选地，所述第二光配向参照物中相邻两个所述次间隔子之间的间距为大于0微米小于等于80微米。距离太大，对位准确度不能满足较高精度的要求。
优选地，所述主间隔子与所述次间隔子间隔设置。即主间隔子与次间隔子的位置不重叠，以避免对现有主间隔子造成破坏。
优选地，所述主间隔子的高度大于所述次间隔子的高度，能够避免影响主间隔子的支撑作用。
优选地，结合图1，所述第一配向膜包括第一区域101、第二区域102、第三区域103、第四区域104；其中所述第一区域101和所述第二区域102的配向膜沿第一方向排布，譬如向下排布；所述第三区域103和所述第四区域104的配向膜沿第二方向排布，譬如向上排布；
优选地，如图4所示，所述第二配向膜包括第五区域301、第六区域302；其中所述第五区域301的配向膜沿第三方向排布；譬如向左排布，所述第六区域的配向膜沿第四方向排布，譬如向右排布；所述第五区域301与所述第一区域101和所述第三区域103对应，所使第六区域302与所述第二区域102和所述第四区域104对应。从而将两个基板组合后，使得所述像素单元具有四个显示畴。
优选地，所述第一区域、所述第二区域、所述第三区域、以及所述第四区域面积相等；所述第五区域和所述第六区域的面积相等；从而便于得到四个面积大小相等的显示畴，使面板显示的色彩更加均匀，提高对比度。
本发明的液晶显示面板及其制作方法，通过以次间隔子作为光配向参照物，从而提高该基板的光配向对位准确度，提高了显示效果。
请参照图5，图5为本发明的第一种液晶显示面板的结构示意图。
本发明的液晶显示面板，其包括：第一基板、第二基板、液晶层，所述液晶层位于所述第一基板和所述第二基板之间。第一基板40譬如为BOA（BM on Array）基板。
其中所述第一基板40包括：第一衬底基板41、第一金属层42位于衬底基板11上，包括栅极；栅绝缘层43部分位于所述第一金属层42上，用于隔离所述第一金属层42和有源层44；所述有源层44部分位于所述栅绝缘层43上，用于形成沟道；第二金属层45位于所述有源层44上，包括源极、漏极；第二绝缘层46，位于所述第二金属层45上，用于隔离所述第二金属层45和色阻层47；所述色阻层47，位于所述第二绝缘层46上，包括多个彩膜色阻（譬如红色彩膜、绿色彩膜、蓝色彩膜），所述色阻层47上形成有过孔；以及遮光层48 位于所述色阻层47上，所述遮光层48包括遮光块，即黑色矩阵；第二透明导电层49部分位于所述遮光层48上。所述第一基板还包括器件阵列层和第一配向膜，所述器件阵列层包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理来形成的。
如图5所示，所述第二基板包括第二衬底基板51、第一透明导电层52、第二配向膜；所述第二基板还可以包括间隔件组合层53，所述间隔件组合层53包括主间隔子、次间隔子；所述第一透明导电层52包括配向辅助区521；该第一透明导电层52还包括公共电极。
所述第二配向膜是以所述配向辅助区521为第二光配向参照物为第二光配向参照物，对第二配向膜材料进行光配向处理来形成的。
优选地，所述配向辅助区521的位置与所述扫描线在所述第二基板上的投影位置相对应。
优选地，所述配向辅助区521是通过对所述第一透明导电层52进行刻蚀得到的。比如，通过黄光制程对与扫描线对应位置的透明导电层进行刻蚀，以便图像传感器检测到该区域，从而便于对第二配向膜材料进行光配向。
优选地，如图6所示，所述配向辅助区522是通过对所述第一透明导电层52进行激光照射，以使透明导电层碳化得到的。由于使用激光对与扫描线对应的第一透明导电层进行照射，使透明导电层碳化后，碳化后的区域与未碳化区域的灰阶不一样，能够使图像传感器检测到该区域，在实现光配向的同时，可以节省制作工序，节省生产成本。
本发明的液晶显示面板的制作方法包括以下步骤：
S201、以所述数据线作为第一光配向参照物，对所述第一基板上的第一配向膜材料进行光配向处理，以在所述第一基板上形成所述第一配向膜；
所述第一配向膜材料譬如为聚酰亚胺，使用偏正光对其照射后，可在所述第一基板上形成所述第一配向膜。
S202、以所述配向辅助区作为第二光配向参照物，对所述第二基板上的第二配向膜材料进行光配向处理，以在所述第二基板上形成所述第二配向膜；
所述第二配向膜材料譬如为聚酰亚胺，使用偏正光对其照射后，可在所述第二基板上形成所述第二配向膜。
S203、将所述第一基板和所述第二基板进行组合，并在组合后的所述第一基板和所述第二基板之间设置所述液晶层。
优选地，所述配向辅助区521的位置与所述扫描线在所述第二基板上的投影位置相对应。
优选地，所述配向辅助区521是通过对所述第一透明导电层52进行刻蚀得到的。比如，通过黄光制程对与扫描线对应位置的透明导电层进行刻蚀，以便图像传感器检测到该区域，从而便于对第二配向膜材料进行光配向。
优选地，如图6所示，所述配向辅助区522是通过对所述第一透明导电层52进行激光照射，以使透明导电层碳化得到的。由于使用激光对与扫描线对应的第一透明导电层进行照射使透明导电层碳化后，碳化后的区域与未碳化区域的灰阶不一样，能够使图像传感器检测到该区域，在实现光配向的同时，可以节省制作工序，节省生产成本。
本发明的液晶显示面板及其制作方法，通过对彩膜基板上的透明导电层进行处理以作为光配向参照物，从而提高该基板的光配向对位准确度，提高了显示效果。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (18)

  1. 一种液晶显示面板，其特征在于，包括：
    第一基板，包括：
    色阻层；
    遮光层，包括遮光块；
    器件阵列层，包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；以及
    第一配向膜，所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理形成的；
    第二基板，包括：
    间隔件组合层，包括主间隔子、次间隔子；所述次间隔子与所述主间隔子间隔设置；以及
    第二配向膜，所述第二配向膜是以至少两个所述次间隔子组成的连线为第二光配向参照物，对第二配向膜材料进行光配向处理形成的；以及
    液晶层，位于所述第一基板和所述第二基板之间；
    其中，至少两个所述次间隔子的长度总和与总线长度的比例大于等于50%，所述总线长度为至少两个所述次间隔子组成的线段的总长度。
  2. 根据权利要求1所述的液晶显示面板，其特征在于，
    至少两个所述次间隔子的长度总和与所述总线长度的比例大于等于80%。
  3. 根据权利要求1所述的液晶显示面板，其特征在于，
    所述第二光配向参照物中相邻两个所述次间隔子之间的间距大于0微米小于等于80微米。
  4. 根据权利要求3所述的液晶显示面板，其特征在于，
    所述第二光配向参照物中相邻两个所述次间隔子之间的间距大于6微米小于等于30微米。
  5. 根据权利要求1所述的液晶显示面板，其特征在于，
    所述主间隔子的高度大于所述次间隔子的高度。
  6. 根据权利要求1所述的液晶显示面板，其特征在于，
    所述次间隔子是与所述主间隔子相同的光罩工序形成的。
  7. 一种液晶显示面板，其特征在于，包括：
    第一基板，包括：
    色阻层；
    遮光层，包括遮光块；
    器件阵列层，包括数据线、扫描线以及由所述数据线和所述扫描线限定的像素单元；以及
    第一配向膜，所述第一配向膜是以所述数据线为第一光配向参照物，对第一配向膜材料进行光配向处理形成的；
    第二基板，包括：
    第一透明导电层，包括配向辅助区；
    第二配向膜，所述第二配向膜是以所述配向辅助区为第二光配向参照物，对第二配向膜材料进行光配向处理形成的；以及
    液晶层，位于所述第一基板和所述第二基板之间。
  8. 根据权利要求7所述的液晶显示面板，其特征在于，
    所述配向辅助区的位置与所述扫描线在所述第二基板上的投影位置相对应。
  9. 根据权利要求8所述的液晶显示面板，其特征在于，
    所述配向辅助区是通过对所述第一透明导电层进行刻蚀得到的。
  10. 根据权利要求8所述的液晶显示面板，其特征在于，
    所述配向辅助区是通过对所述第一透明导电层进行激光照射，以使所述第一透明导电层碳化得到的。
  11. 根据权利要求7所述的液晶显示面板，其特征在于，
    所述第二基板还包括间隔件组合层，所述间隔件组合层包括主间隔子、次间隔子。
  12. 根据权利要求11所述的液晶显示面板，其特征在于，
    所述主间隔子的高度大于所述次间隔子的高度。
  13. 根据权利要求11所述的液晶显示面板，其特征在于，
    所述次间隔子是与所述主间隔子相同的光罩工序形成的。
  14. 根据权利要求11所述的液晶显示面板，其特征在于，
    所述次间隔子与所述主间隔子间隔设置。
  15. 一种如权利要求7所述的液晶显示面板的制作方法，其特征在于，所述方法包括以下步骤：
    以所述数据线作为所述第一光配向参照物，对所述第一基板上的第一配向膜材料进行光配向处理，以在所述第一基板上形成所述第一配向膜；
    以所述配向辅助区作为第二光配向参照物对所述第二基板上的第二配向膜材料进行光配向处理，以在所述第二基板上形成所述第二配向膜；
    将所述第一基板和所述第二基板进行组合，并在组合后的所述第一基板和所述第二基板之间设置所述液晶层。
  16. 根据权利要求15所述的液晶显示面板的制作方法，其特征在于，
    所述配向辅助区的位置与所述扫描线在所述第二基板上的投影位置相对应。
  17. 根据权利要求16所述的液晶显示面板的制作方法，其特征在于，
    所述配向辅助区是通过对所述第一透明导电层进行刻蚀得到的。
  18. 根据权利要求16所述的液晶显示面板的制作方法，其特征在于，
    所述配向辅助区是通过对所述第一透明导电层进行激光照射，以使所述第一透明导电层碳化得到的。
PCT/CN2016/080436 2016-04-08 2016-04-28 一种液晶显示面板及其制作方法 Ceased WO2017173686A1 (zh)

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