WO2014206029A1 - 基板结构、液晶面板及显示装置 - Google Patents

基板结构、液晶面板及显示装置 Download PDF

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Publication number
WO2014206029A1
WO2014206029A1 PCT/CN2013/089453 CN2013089453W WO2014206029A1 WO 2014206029 A1 WO2014206029 A1 WO 2014206029A1 CN 2013089453 W CN2013089453 W CN 2013089453W WO 2014206029 A1 WO2014206029 A1 WO 2014206029A1
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WIPO (PCT)
Prior art keywords
black matrix
substrate
common electrode
concave
recessed portion
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PCT/CN2013/089453
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English (en)
French (fr)
Inventor
金相秦
朴祥秀
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合肥京东方光电科技有限公司
京东方科技集团股份有限公司
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Publication of WO2014206029A1 publication Critical patent/WO2014206029A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode

Definitions

  • Embodiments of the present invention relate to a substrate structure, a liquid crystal panel, and a display device. Background technique
  • the liquid crystal panel is mainly composed of a color filter substrate (Colour Filter, CF) and an array substrate, and a liquid crystal molecular layer filled between the two.
  • a black matrix Black Matrix, ⁇
  • a common electrode layer having a uniform thickness are sequentially disposed on the side close to the liquid crystal molecules.
  • PCT Pressure Cooking Test
  • An embodiment of the present invention provides a substrate structure including: a substrate, a black matrix above the substrate, and a common electrode formed on the black matrix, wherein the common electrode and the black matrix a first concave-convex structure is formed on the interface, the first concave-convex structure includes a first concave portion and a first convex portion having complementary shapes, and one of the first concave portion and the first protruding portion is formed On the common electrode, the other of the first recess and the first protrusion is formed on the black matrix.
  • the first recessed portion is a groove, a stepped recessed space at an edge of the black matrix, or a through hole penetrating the black matrix in a thickness direction.
  • the substrate structure is a color filter substrate constituting the display device, and the black matrix is directly formed on the base substrate.
  • a second concave-convex structure is disposed on an interface between the black matrix and the base substrate, and the second concave-convex structure includes a second recessed portion and a second protruding portion that are complementary in shape.
  • One of the second depressed portion and the second raised portion is formed on the black matrix, and the other of the second depressed portion and the second raised portion is formed on the base substrate.
  • a plurality of first relief structures are formed on an interface of the common electrode and the black matrix, and the first recesses of the plurality of first relief structures include a groove located in the black matrix Any combination of stepped recessed spaces of the edges and through holes of the black matrix in the thickness direction.
  • a plurality of second concave and convex structures are formed on an interface between the substrate and the black matrix, and the second concave portions of the plurality of second concave and convex structures include a groove and are located in the black Any combination of stepped recessed spaces of the edge of the matrix and through holes of the black matrix in the thickness direction.
  • Another embodiment of the present invention provides a liquid crystal panel including the above substrate structure and a counter substrate disposed opposite to the substrate structure.
  • the substrate structure is a color film substrate, and the opposite substrate is an array substrate.
  • the array substrate is formed with the first trap portion and/or the first The light blocking portion corresponding to the two traps.
  • a projection of the first recessed portion and/or the second recessed portion on the black matrix corresponding to the light blocking portion on the array substrate is located in a region where the light blocking portion is located within.
  • Still another embodiment of the present invention provides a display device including the above liquid crystal panel.
  • Figures la- lc are respectively schematic cross-sectional views of a first concave-convex structure in a first embodiment according to an embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view showing a first uneven structure according to an embodiment of the present invention
  • FIG. 3 is a plan view of a first relief structure in accordance with an embodiment of the present invention.
  • FIG. 4a-4B are schematic cross-sectional views of a second concave-convex structure according to an embodiment of the present invention
  • FIG. 5 and FIG. 6 are respectively schematic structural views of a liquid crystal panel according to an embodiment of the present invention.
  • Example embodiments of the present disclosure and their various features and advantageous details are described in more detail with reference to the non-limiting exemplary embodiments illustrated in the accompanying drawings. It should be noted that the features shown in the figures are not necessarily drawn to scale. Descriptions of well-known materials, components, and process technologies are omitted so as not to obscure the example embodiments of the present disclosure. The examples are only intended to facilitate an understanding of the implementation of the embodiments of the present disclosure, and to enable those skilled in the art to practice the example embodiments. Therefore, the examples should not be construed as limiting the scope of the example embodiments of the present disclosure.
  • One of the technical problems to be solved by the embodiments of the present invention is to provide a color filter substrate, a liquid crystal panel, and a display device, which can prevent the common electrode layer in the color filter substrate from being easily detached from the black matrix, thereby avoiding the damage of the color film substrate.
  • the substrate is, for example, a color filter substrate of a display device, comprising: a substrate substrate 01, a black matrix 02 located above the substrate substrate, and A common electrode layer 03 formed on the black matrix 02.
  • a plurality of first uneven structures 05 are formed, for example, on the contact faces of the common electrode layer 03 and the black matrix 02.
  • the first uneven structure 05 includes a first recessed portion and a first projected portion that complement each other in shape.
  • the first recess structure 05 is formed by the black matrix 02 facing the common electrode layer.
  • the first depressed portion on one side of the 03 and the first raised portion formed on the side of the common electrode layer 03 facing the black matrix 02 are formed.
  • the first recessed portion of the black matrix 02 facing the common electrode layer 03 is disposed opposite to the convex portion of the common electrode layer 03 facing the side of the black matrix 02, and is matched with each other, and the common electrode layer 03 and the black matrix 02 can be enlarged.
  • the contact area enhances the adhesion between the common electrode layer 03 and the black matrix 02, effectively reducing the possibility of the common electrode layer 03 falling off from the black matrix 02, thereby improving the stability of the color filter substrate.
  • the first recessed portion of the black matrix 02 facing the common electrode layer 03 side may be, for example, in the following three forms:
  • the first recessed portion of the black matrix 02 facing the common electrode layer 03-side is a recess, and the common electrode layer 03 faces the first raised portion of the black matrix 02-side and the embedded Slot Relative settings, match each other.
  • the first recessed portion of the black matrix 02 facing the common electrode layer 03 is a stepped recessed space formed at the edge of the black matrix 05, and the common electrode layer 03 has a side facing the black matrix 02.
  • the first raised portions are disposed opposite to the stepped recessed spaces and cooperate with each other.
  • the first recessed portion of the black matrix 02 facing the common electrode layer 03 is a through hole penetrating the black matrix 02 in the thickness direction, and the common electrode layer 03 has a side toward the black matrix 02 side.
  • the first protrusions are disposed opposite to the through holes and are engaged with each other.
  • the common electrode layer 03 has a first raised portion which passes through the black matrix in the thickness direction.
  • the slot of 02 is in contact with the base substrate 01.
  • the common electrode layer 03 is usually made of an ITO material, the adhesion between the ITO material and the base substrate 01 is relatively strong depending on the characteristics of the material, and therefore, the black matrix 02 has a side facing the common electrode layer 03 side.
  • the first recessed portion adopts the above-described third form with respect to the first form, and the possibility that the common electrode layer 03 is detached from the black matrix 02 can be further reduced.
  • the first depressed portions on the black matrix 02 are formed to have the same form, those skilled in the art can also understand that the black matrix 02 is based on actual needs.
  • a depressed portion may be formed to have any combination of the above three forms.
  • the black matrix 02 has a first recessed portion which may be a combination of a through hole penetrating the black matrix 02 in the thickness direction and a stepped recessed space at the edge of the black matrix 02.
  • the first recessed portion of the black matrix 02 may also be other combinations of the above three forms, which will not be described in detail herein.
  • the first concave-convex structure on the contact surface of the common electrode layer and the black matrix may be: (I) the first depressed portion and the common electrode layer having the black matrix toward the side of the common electrode layer facing the black matrix The first convex portion having one side is formed; or (II) the first convex portion having the black matrix toward the common electrode layer side and the first concave portion of the common electrode layer facing the black matrix side.
  • a plurality of first concavo-convex structures 05 are formed on the contact surface of the common electrode layer 03 and the black matrix 02, and the first concavo-convex structure 05 includes the black matrix 02 toward the common electrode layer.
  • the first convex portion and the common electrode layer 03 which are provided on one side of the 03 side face the first depressed portion which is provided on the side of the black matrix 02.
  • the first raised portion of the black matrix 02 facing the side of the common electrode layer 03 is disposed opposite to the first recessed portion of the common electrode layer 03 facing the side of the black matrix 02, and is matched with each other.
  • the contact area between the common electrode layer 03 and the black matrix 02 can be increased, and the adhesion between the common electrode layer 03 and the black matrix 02 can be enhanced, so that the possibility that the common electrode layer 03 falls off from the black matrix 02 can be effectively reduced. .
  • the color film substrate provided by the above embodiment of the present invention may further be provided with at least one second concave and convex on the contact surface of the black matrix 02 and the base substrate 01.
  • Structure 06 as shown in Figures 4a and 4b (the first relief structure 05 is not shown in Figures 4a and 4b).
  • the second uneven structure 06 can increase the contact area between the black matrix 02 and the base substrate 01, enhance the adhesion between the black matrix 02 and the base substrate 01, and effectively reduce the black matrix 02 from the base substrate 01. The possibility of falling off.
  • the second uneven structure 06 having the contact surface of the base substrate 01 and the black matrix 02 may be: (I) a second convex having a black matrix 02 toward the side of the base substrate 01 as shown in FIG. 4a a starting portion, and a second recess portion of the base substrate 01 facing the side of the black matrix 02; or (II), as shown in FIG. 4b, a second recess portion from the black matrix 02 toward the side of the base substrate 01 And the second substrate portion of the base substrate 01 facing the black matrix 02 side; of course, the structure of the plurality of second concave-convex structures 06 formed on the color filter substrate may also be a combination of the above two cases, Not limited.
  • At least one first concave-convex structure may be disposed on a contact surface of the common electrode layer and the black matrix; at least one second concave and convex may be disposed on the contact surface of the base substrate and the black matrix
  • at least one first concave-convex structure on the contact surface of the common electrode layer and the black matrix
  • at least one second concave-convex structure is disposed on the contact surface of the base substrate and the black matrix, such that
  • the aspect increases the contact area between the common electrode layer and the black matrix, so that the adhesion between the common electrode layer and the black matrix is enhanced, and the possibility of the common electrode layer falling off from the black matrix is effectively reduced; on the other hand, the contact area is increased.
  • the contact area between the base substrate and the black matrix enhances the adhesion between the base substrate and the black matrix, effectively reducing the possibility of the black matrix falling off from the substrate, thereby improving the stability of the entire
  • the exemplary embodiment of the present application has been described by taking a color film substrate as an example in the above embodiments, those skilled in the art can understand that the above black matrix 02 and common electrode layer 03 can also be formed in a COA (Color Filter on Array).
  • COA Color Filter on Array
  • a color filter film and a thin film transistor array are simultaneously formed on the COA substrate. Therefore, other embodiments of the present invention may also provide that at least one of the above-mentioned first concave-convex structures is formed on the interface between the black matrix and the common electrode layer, and/or wherein the substrate and the black matrix are At least one COA substrate of the above second uneven structure is formed on the interface of the array.
  • a second embodiment of the present invention provides a liquid crystal panel comprising the color filter substrate or the array substrate provided by the above embodiments of the present invention.
  • the liquid crystal panel includes: the color filter substrate provided by the above embodiment of the present invention, the array substrate 20 disposed opposite the color film substrate, and the color filter substrate and the array substrate A layer of liquid crystal material (not shown).
  • the black matrix 02 has a first recessed portion toward the common electrode layer 03
  • the array substrate 20 is formed with a light blocking portion 07 corresponding to the position of the first recess portion of the black matrix 02 facing the common electrode layer 03 side;
  • the black matrix 02 has a second recessed portion toward the base substrate 01 side (not shown in FIG. 5)
  • the array substrate 20 is formed with a recess formed on the side of the black matrix 02 facing the base substrate 01.
  • the light blocking portion corresponding to the position of the portion.
  • the array substrate is provided with a light blocking portion corresponding to the position of the depressed portion, and the light blocking portion can compensate for light leakage caused by the thinning of the thickness of the black matrix 02 at the depressed portion.
  • the black matrix 02 has a first recessed portion facing the common electrode layer 03 side and/or a second recessed portion of the black matrix 02 facing the substrate substrate 01 side, and the projection on the array substrate is located at the light blocking Within the area where the department is located.
  • the region where the light blocking portion is provided on the array substrate is, for example, larger than the depressed portion of the black matrix, and the light blocking portion thus provided can more effectively prevent light leakage and ensure good display of the liquid crystal panel.
  • the light blocking portion is made of an opaque metal material.
  • the light blocking portion can also be prepared from other materials that can block the shielding, which is not limited herein.
  • a sealant 04 for supporting and sealing may be disposed between the color filter substrate and the array substrate.
  • the projection of the sealant 04 on the color filter substrate is completely located in the black matrix 02, that is, the sealant 04 does not directly contact the base substrate 01 of the color filter substrate.
  • the sealant 04 does not directly contact the base substrate 01 of the color filter substrate.
  • peeling easily occurs during the PCT test.
  • the first uneven structure and the second uneven structure provided in the color film substrate provided by the embodiment of the present invention can be reduced between the base substrate 01 and the black matrix 02, and between the black matrix 02 and the common electrode layer 03. The phenomenon.
  • the sealant 04 can be formed into a projection portion on the color filter substrate.
  • the division is located outside the black matrix 02, which can relatively reduce the phenomenon of falling off between the film layers of the color filter substrate during the PCT test.
  • a display device includes the above liquid crystal panel provided by the above embodiment of the present invention.
  • the display device can be: a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigation device, and the like, or any display product or component.
  • the contact area of the common electrode layer and the black matrix can be increased, and the adhesion between the common electrode layer and the black matrix can be enhanced, thereby being effective.
  • the possibility of the common electrode layer falling off from the black matrix is lowered, and the stability of the color filter substrate 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)
  • Geometry (AREA)
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  • Optical Filters (AREA)

Abstract

提供了一种基板结构、液晶面板及显示装置。该基板结构包括：衬底基板（01）、位于衬底基板（01）上方的黑矩阵（02）以及形成在黑矩阵（02）上的公共电极层（03），其中，在公共电极层（03）与黑矩阵（02）的交界面上形成有第一凹凸结构（05），第一凹凸结构（05）包括形状互补的第一凹陷部和第一凸出部，第一凹陷部和第一凸出部中之一形成在公共电极层（03）上，第一凹陷部和第一凸出部中的另一个形成在黑矩阵（02）上。通过设置相互配合的第一凹凸结构（05），可增大公共电极层（03）和黑矩阵（02）的接触面积，增强公共电极层（03）和黑矩阵（02）之间的粘附作用，从而能够有效降低公共电极层（03）从黑矩阵（02）上脱落的可能性。

Description

基板结构、 液晶面板及显示装置 技术领域
本发明的实施例涉及基板结构、 液晶面板及显示装置。 背景技术
目前， 液晶面板主要由对盒而成的彩膜基板（Colour Filter, CF )和阵列 基板， 以及在两者之间填充的液晶分子层组成。 彩膜基板的衬底基板上靠近 液晶分子的一侧依次设置有厚度均匀的黑矩阵（ Black Matrix , ΒΜ)和公共电 极层。 当采用高压加速老化试验（ Pressure Cooking Test, PCT )对液晶面板 进行质量测试时会发现， 在彩膜基板中黑矩阵和公共电极层之间的粘附作用 较弱， 很容易发生脱落。 从黑矩阵脱落的公共电极层会破坏彩膜基板的稳定 性， 严重影响液晶面板的画面品质。 发明内容
本发明的一实施例提供一种基板结构， 包括： 衬底基板、 位于衬底基板 上方的黑矩阵以及形成在所述黑矩阵上的公共电极， 其中， 在所述公共电极 与所述黑矩阵的交界面上形成有第一凹凸结构， 所述第一凹凸结构包括形状 互补的第一凹陷部和第一凸出部， 所述第一凹陷部和所述第一凸出部中之一 形成在所述公共电极上， 所述第一凹陷部和所述第一凸出部中的另一个形成 在所述黑矩阵上。
在一个示例中， 所述第一凹陷部为凹槽、 位于所述黑矩阵边缘的台阶状 凹陷空间、 或在厚度方向上贯穿所述黑矩阵的通孔。
在一个示例中， 所述基板结构为构成所述显示装置的彩膜基板， 所述黑 矩阵直接形成在所述衬底基板上。
在一个示例中， 所述黑矩阵与所述衬底基板的交界面上设置有第二凹凸 结构， 所述第二凹凸结构包括形状互补的第二凹陷部和第二凸出部， 所述第 二凹陷部和所述第二凸出部中之一形成在所述黑矩阵上， 所述第二凹陷部和 所述第二凸出部中的另一个形成在所述衬底基板上。 在一个示例中， 在所述公共电极与所述黑矩阵的交界面上形成有多个第 一凹凸结构， 所述多个第一凹凸结构的第一凹陷部包括凹槽、 位于所述黑矩 阵边缘的台阶状 陷空间和在厚度方向上贯穿所述黑矩阵的通孔的任意组 合。
在一个示例中， 在所述村底基板与所述黑矩阵的交界面上形成有多个第 二凹凸结构， 所述多个第二凹凸结构的第二凹陷部包括凹槽、 位于所述黑矩 阵边缘的台阶状 陷空间和在厚度方向上贯穿所述黑矩阵的通孔的任意组 合。
本发明的另一实施例提供一种液晶面板， 其中， 包括上述的基板结构以 及与该基板结构相对设置的对置基板。
在一个示例中，所述基板结构为彩膜基板，且所述对置基板为阵列基板。 在一个示例中 ,在所述黑矩阵上形成有所述第一凹陷部和 /或所述第二凹 陷部时，所述阵列基板上形成有与所述第一 陷部和 /或所述第二 陷部对应 的挡光部。
在一个示例中，所述黑矩阵上的对应于所述挡光部的所述第一凹陷部和 / 或所述第二凹陷部在所述阵列基板上的投影位于所述挡光部所在区域之内。
本发明的又一实施例提供一种显示装置， 其中， 包括上述的液晶面板。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图 仅仅涉及本发明的一些实施例， 并非对本发明的限制。
图 la-图 lc分别为根据本发明实施例的第一实施例中第一凹凸结构的剖 面示意图；
图 2为根据本发明实施例的第一凹凸结构的剖面示意图；
图 3为根据本发明实施例的第一凹凸结构的俯视图；
图 4a-图 4b分别为根据本发明实施例的第二凹凸结构的剖面示意图； 图 5和图 6分别为本发明实施例提供的液晶面板的结构示意图。 具体实施方式 下面将结合附图，对本发明实施例中的技术方案进行清楚、完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有做出创造性劳动前提下 所获得的所有其他实施例， 都属于本发明保护的范围。
参考在附图中示出并在以下描述中详述的非限制性示例实施例， 更加全 面地说明本公开的示例实施例和它们的多种特征及有利细节。 应注意的是， 图中示出的特征不是必须按照比例绘制。 省略已知材料、 组件和工艺技术的 描述， 从而不使本公开的示例实施例模糊。 示例仅旨在有利于理解本公开示 例实施例的实施，以及进一步使本领域技术人员能够实施示例实施例。 因而， 示例不应被理解为对本公开示例实施例的范围的限制。
本发明实施例要解决的技术问题之一是提供一种彩膜基板、 液晶面板及 显示装置， 能够避免彩膜基板中的公共电极层易从黑矩阵脱落， 进而避免破 坏彩膜基板稳定性。
第一实施例
本发明第一实施例提供的一种基板， 如图 la-图 lc所示， 该基板例如为 一显示装置的彩膜基板， 包括： 衬底基板 01、位于衬底基板上方的黑矩阵 02 以及形成在所述黑矩阵 02上的公共电极层 03。在公共电极层 03与黑矩阵 02 的接触面上例如形成有多个第一凹凸结构 05。 第一凹凸结构 05包括形状互 补的第一凹陷部和第一凸出部。
如图 la所示，该第一凹陷结构 05由形成在黑矩阵 02的朝向公共电极层
03一侧的第一凹陷部以及形成在公共电极层 03的朝向黑矩阵 02—侧的第一 凸起部组成。 黑矩阵 02朝向公共电极层 03一侧具有的第一凹陷部与公共电 极层 03朝向黑矩阵 02—侧具有的凸起部相对设置、 彼此配合， 能够增大公 共电极层 03和黑矩阵 02的接触面积， 增强公共电极层 03和黑矩阵 02之间 的粘附作用， 有效地了降低公共电极层 03从黑矩阵 02脱落的可能性， 进而 提高彩膜基板的稳定性。
黑矩阵 02朝向公共电极层 03—侧具有的第一凹陷部例如可以为以下三 种形式：
第一种，如图 la所示，黑矩阵 02朝向公共电极层 03—侧具有的第一凹 陷部为凹槽， 公共电极层 03朝向黑矩阵 02—侧具有的第一凸起部与该嵌槽 相对设置、 彼此配合。
第二种，如图 lb所示，黑矩阵 02朝向公共电极层 03一侧具有的第一凹 陷部为形成在黑矩阵 05边缘的阶梯状凹陷空间， 公共电极层 03朝向黑矩阵 02一侧具有的第一凸起部与该阶梯状凹陷空间相对设置、 彼此配合。
第三种，如图 lc所示，黑矩阵 02朝向公共电极层 03一侧具有的第一凹 陷部为在厚度方向上贯穿黑矩阵 02的通孔， 公共电极层 03朝向黑矩阵 02 一侧具有的第一凸起部与该通孔相对设置、 彼此配合。
如图 lc所示，当黑矩阵 02朝向公共电极层 03—侧具有的第一凹陷部采 用上述第三种形式时，公共电极层 03具有的第一凸起部会通过在厚度方向上 贯穿黑矩阵 02的槽孔而与衬底基板 01相接触。由于公共电极层 03通常是由 ITO材料制成的，根据材料的特性， ITO材料和衬底基板 01之间的粘附作用 相对较强， 因此， 黑矩阵 02朝向公共电极层 03—侧具有的第一凹陷部采用 上述第三种形式相对于采用第一种形式，可以进一步降低公共电极层 03从黑 矩阵 02上脱落的可能性。
尽管在图 la至 lc所示的实施例中，黑矩阵 02上的第一凹陷部形成为均 有相同的形式， 然而本领域的技术人员也可以理解， 根据实际需要， 黑矩阵 02上的第一凹陷部可形成为具有以上三种形式的任意组合。 例如， 如图 2所 示的彩膜基板，黑矩阵 02具有的第一凹陷部可以为在厚度方向上贯穿黑矩阵 02的通孔和位于黑矩阵 02边缘的台阶状凹陷空间的组合， 当然， 黑矩阵 02 具有的第一凹陷部的还可以为上述三种形式的其它组合， 在此不做详述。
本发明实施例中， 在公共电极层和黑矩阵的接触面上的第一凹凸结构可 以是： （ I ) 由黑矩阵朝向公共电极层一侧具有的第一凹陷部和公共电极层 朝向黑矩阵一侧具有的第一凸起部构成； 或（ II ) 由黑矩阵朝向公共电极层 一侧具有的第一凸起部以及公共电极层朝向黑矩阵一侧具有的第一凹陷部构 成。
如图 3所示的本发明另一实施例中， 在公共电极层 03与黑矩阵 02的接 触面上形成有多个第一凹凸结构 05 ,第一凹凸结构 05包括黑矩阵 02朝向公 共电极层 03一侧具有的第一凸起部和公共电极层 03朝向黑矩阵 02—侧具有 的第一凹陷部。 黑矩阵 02朝向公共电极层 03—侧具有的第一凸起部与公共 电极层 03朝向黑矩阵 02—侧具有的第一凹陷部相对设置、 彼此配合， 同样 可以增大公共电极层 03和黑矩阵 02之间的接触面积， 增强公共电极层 03 和黑矩阵 02之间的粘附作用，从而能够有效降低公共电极层 03从黑矩阵 02 上脱落的可能性。
进一步地， 为了降低黑矩阵 02从衬底基板 01上脱落的可能性， 本发明 上述实施例提供的彩膜基板在黑矩阵 02与衬底基板 01的接触面上还可以设 置至少一个第二凹凸结构 06, 如图 4a和图 4b所示（在图 4a和图 4b中未示 出第一凹凸结构 05 )。该第二凹凸结构 06可以增加黑矩阵 02和衬底基板 01 之间的接触面积， 使黑矩阵 02和衬底基板 01之间的粘附作用增强， 有效降 低黑矩阵 02从衬底基板 01上脱落的可能性。
例如， 在衬底基板 01和黑矩阵 02的接触面上具有的第二凹凸结构 06 可以是： （ I )如图 4a所示， 由黑矩阵 02朝向衬底基板 01—侧具有的第二 凸起部， 以及衬底基板 01朝向黑矩阵 02—侧具有的第二凹陷部组成； 或者 ( II )，如图 4b所示，由黑矩阵 02朝向衬底基板 01—侧具有的第二凹陷部， 以及衬底基板 01朝向黑矩阵 02—侧具有的第二凸起部组成； 当然， 彩膜基 板上形成的多个第二凹凸结构 06的结构也可以是上述两种情况的组合，在此 不作限定。
本发明实施例提供的上述彩膜基板中， 可以在公共电极层和黑矩阵的接 触面上设置至少一第一凹凸结构； 可以在衬底基板和黑矩阵的接触面上设置 至少一第二凹凸结构； 例如， 还可以既在公共电极层和黑矩阵的接触面上设 置至少一第一凹凸结构， 同时又在衬底基板和黑矩阵的接触面上设置至少一 第二凹凸结构， 这样， 一方面增大了公共电极层和黑矩阵的接触面积， 使得 公共电极层和黑矩阵之间的粘附作用增强， 有效降低公共电极层从黑矩阵上 脱落的可能性； 另一方面又增大了衬底基板和黑矩阵的接触面积， 使得衬底 基板和黑矩阵之间的粘附作用增强， 有效降低黑矩阵从衬底基板上脱落的可 能性， 从而提高彩膜基板整体的稳定性。
尽管以上实施例中， 以彩膜基板为例描述了本申请的示例性实施例， 但 是本领域技术人员可以理解， 上述黑矩阵 02和公共电极层 03也可形成在一 COA(Color Filter on Array)基板上， 在该 COA基板上同时形成有彩色滤光膜 和薄膜晶体管阵列。 故， 本发明其他实施例也可提供其中黑矩阵和公共电极 层的交界面上形成有至少一个上述第一凹凸结构，和 /或其中衬底基板和黑矩 阵的交界面上形成有至少一个上述第二凹凸结构的 COA基板。
第二实施例
本发明第二实施例提供一种液晶面板， 包括本发明上述实施例提供的彩 膜基板或阵列基板。
在一个示例中， 如图 5所示， 上述液晶面板包括： 本发明上述实施例提 供的彩膜基板、 与该彩膜基板相对设置的阵列基板 20, 以及设置在该彩膜基 板与该阵列基板之间的液晶材料层（未示出）。在黑矩阵 02朝向公共电极层 03一侧具有第一凹陷部时，阵列基板 20上形成有与黑矩阵 02朝向公共电极 层 03 —侧具有的第一凹陷部位置相对应的挡光部 07; 和 /或， 在黑矩阵 02 朝向衬底基板 01—侧具有第二凹陷部时（图 5中未示出） ， 阵列基板 20上 形成有与黑矩阵 02朝向衬底基板 01—侧具有的凹陷部位置相对应的挡光部。 即只要黑矩阵 02具有凹陷部时，阵列基板上就设置有与凹陷部位置相对应的 挡光部，该挡光部可以补偿由于黑矩阵 02在凹陷部处的厚度变薄可能导致的 漏光现象。
在一个示例中，黑矩阵 02朝向公共电极层 03一侧具有的第一凹陷部和 / 或黑矩阵 02朝向衬底基板 01一侧具有的第二凹陷部， 在阵列基板上的投影 位于挡光部所在区域之内。 在阵列基板上设置挡光部的区域例如大于黑矩阵 具有的凹陷部的区域， 这样设置的挡光部能够更有效地防止漏光， 保证液晶 面板显示良好。
在一个示例中， 挡光部由不透明的金属材料制备， 当然， 挡光部也可以 由其它能起遮挡作用的材料制备而成， 在此不作限定。
进一步地， 在彩膜基板和阵列基板之间还可设置有起到支撑和密封作用 的封框胶 04。
如图 5所示，封框胶 04在彩膜基板上的投影完全位于黑矩阵 02内， 即， 封框胶 04不直接接触彩膜基板的衬底基板 01。 在这种情况下， 无论是衬底 基板 01和黑矩阵 02之间，还是黑矩阵 02和公共电极层 03之间， 在 PCT测 试过程中都容易发生脱落。 本发明实施例提供的上述彩膜基板中具有的第一 凹凸结构和第二凹凸结构可以减少在衬底基板 01和黑矩阵 02之间， 以及在 黑矩阵 02和公共电极层 03之间发生脱落的现象。
进一步地，如图 6所示，可以将封框胶 04制作成在彩膜基板上的投影部 分位于黑矩阵 02之外， 这样可以相对减少在 PCT测试过程中彩膜基板的各 膜层之间发生脱落的现象。
第三实施例
本发明第三实施例提供的一种显示装置， 包括本发明上述实施例提供的 上述液晶面板。 该显示装置可以为： 手机、 平板电脑、 电视机、 显示器、 笔 记本电脑、 数码相框、 导航仪等任何具有显示功能的产品或部件。
在本发明的上述实施例中， 通过设置的相互配合的第一凹凸结构， 可以 增大公共电极层和黑矩阵的接触面积， 增强公共电极层和黑矩阵之间的粘附 作用， 从而能够有效降低公共电极层从黑矩阵上脱落的可能性， 提高彩膜基 板的稳定性。
虽然上文中已经用一般性说明及具体实施方式， 对本发明作了详尽的描 述， 但在本发明基础上， 可以对之作一些修改或改进， 这对本领域技术人员 而言是显而易见的。 因此， 在不偏离本发明精神的基础上所做的这些修改或 改进， 均属于本发明要求保护的范围。

Claims

权利要求书
1、 一种基板结构， 包括： 衬底基板、位于衬底基板上方的黑矩阵以及形 成在所述黑矩阵上的公共电极， 其中， 在所述公共电极与所述黑矩阵的交界 面上形成有第一凹凸结构， 所述第一凹凸结构包括形状互补的第一凹陷部和 第一凸出部， 所述第一凹陷部和所述第一凸出部中之一形成在所述公共电极 上， 所述第一凹陷部和所述第一凸出部中的另一个形成在所述黑矩阵上。
2、 如权利要求 1所述的基板结构， 其中， 所述第一凹陷部为凹槽、位于 所述黑矩阵边缘的台阶状凹陷空间、或在厚度方向上贯穿所述黑矩阵的通孔。
3、如权利要求 1或 2所述的基板结构， 其中， 所述基板结构为构成所述 显示装置的彩膜基板， 所述黑矩阵直接形成在所述衬底基板上。
4、如权利要求 1至 3中任一项所述的基板结构， 其中， 所述黑矩阵与所 述衬底基板的交界面上设置有第二凹凸结构， 所述第二凹凸结构包括形状互 补的第二凹陷部和第二凸出部， 所述第二凹陷部和所述第二凸出部中之一形 成在所述黑矩阵上， 所述第二凹陷部和所述第二凸出部中的另一个形成在所 述衬底基板上。
5、如权利要求 1至 4中任一项所述的基板结构， 其中， 在所述公共电极 与所述黑矩阵的交界面上形成有多个第一凹凸结构， 所述多个第一凹凸结构 的第一凹陷部包括凹槽、 位于所述黑矩阵边缘的台阶状凹陷空间和在厚度方 向上贯穿所述黑矩阵的通孔的任意组合。
6、如权利要求 1至 5中任一项所述的基板结构， 其中， 在所述衬底基板 与所述黑矩阵的交界面上形成有多个第二凹凸结构， 所述多个第二凹凸结构 的第二凹陷部包括凹槽、 位于所述黑矩阵边缘的台阶状凹陷空间和在厚度方 向上贯穿所述黑矩阵的通孔的任意组合。
7、一种液晶面板， 其中， 包括如权利要求 1至 6中任一项所述的基板结 构以及与该基板结构相对设置的对置基板。
8、 如权利要求 7所述的液晶面板， 其中， 所述基板结构为彩膜基板， 且 所述对置基板为阵列基板。
9、如权利要求 8所述的液晶面板， 其中，在所述黑矩阵上形成有所述第 一凹陷部和 /或所述第二凹陷部时，所述阵列基板上形成有与所述第一凹陷部 和 /或所述第二凹陷部对应的挡光部。
10、 如权利要求 9所述的液晶面板， 其中， 所述黑矩阵上的对应于所述 挡光部的所述第一 陷部和 /或所述第二 陷部在所述阵列基板上的投影位 于所述挡光部所在区域之内。
11、一种显示装置， 其中， 包括如权利要求 7至 10中任一项所述的液晶 面板。
PCT/CN2013/089453 2013-06-28 2013-12-14 基板结构、液晶面板及显示装置 WO2014206029A1 (zh)

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