WO2019056507A1 - 一种液晶显示面板 - Google Patents

一种液晶显示面板 Download PDF

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Publication number
WO2019056507A1
WO2019056507A1 PCT/CN2017/109111 CN2017109111W WO2019056507A1 WO 2019056507 A1 WO2019056507 A1 WO 2019056507A1 CN 2017109111 W CN2017109111 W CN 2017109111W WO 2019056507 A1 WO2019056507 A1 WO 2019056507A1
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WIPO (PCT)
Prior art keywords
liquid crystal
layer
substrate
display panel
crystal display
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PCT/CN2017/109111
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English (en)
French (fr)
Inventor
卞峰苓
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深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US15/735,960 priority Critical patent/US10444562B2/en
Publication of WO2019056507A1 publication Critical patent/WO2019056507A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes

Definitions

  • the present invention relates to the field of liquid crystal displays, and more particularly to a liquid crystal display panel.
  • LCD Liquid crystal display
  • the liquid crystal display panel is generally composed of a color filter substrate, a thin film transistor array substrate, and a liquid crystal layer disposed between the two substrates, and a pixel electrode and a common electrode are respectively disposed on opposite sides of the two substrates, and the liquid crystal molecules are controlled to change direction by applying a voltage.
  • the light of the backlight module is refracted to produce a picture.
  • the liquid crystal display includes a twisted nematic ( TN) mode, electronically controlled birefringence (ECB) mode, vertical alignment (VA) and other display modes.
  • the transmittance of the polarizer is generally only 40%. Left and right, so the existing LCD transmittance is only about 20%, and can not be applied to the transparent display, but also in the general LCD
  • the attachment of polarizers requires manual or automatic machine operation. At the same time, due to problems in the operation process, a certain number of defective films appear, such as dust, patch bubbles, polarizers, etc. Production yield and efficiency are insufficient.
  • the liquid crystal display panel includes a color filter substrate, an array substrate, and a liquid crystal molecular layer between the color film substrate and the array substrate.
  • the color filter substrate includes a first substrate 20, a black matrix 30, a color resist layer, and a common electrode layer 40.
  • the array substrate includes a second substrate 50, a thin film transistor layer 60, and a pixel electrode layer 70.
  • the realization of this technology also makes the liquid crystal molecules have a certain difference from the conventional liquid crystal, so that the starting voltage of the liquid crystal display panel in the prior art is greatly increased, and the structure of the liquid crystal molecules is more and more complicated.
  • the invention provides a liquid crystal display panel, which replaces the traditional non-polarizing film structure with a liquid crystal lens structure, reduces the starting voltage of the liquid crystal display panel, and improves the contrast of the liquid crystal display panel.
  • the invention provides a liquid crystal display panel comprising:
  • the color film substrate comprising:
  • the first black matrix formed on the first substrate, the first black matrix including at least one first opening;
  • the second black matrix including at least one first protrusion, wherein the first protrusion is disposed opposite to the first opening, the first opening One-to-one correspondence with the first protrusions,
  • the first protrusion is any one of a regular shape such as a triangle, a quadrangle, a circle, or an ellipse, and the area of the first protrusion is not larger than the area of the first opening;
  • the pixel electrode layer including at least one pixel electrode unit, wherein the pixel electrode unit is composed of at least one ring, the pixel electrode unit is configured to cause illumination
  • the light of the pixel electrode unit is focused to a central area of the ring to achieve a bright state of the liquid crystal display panel.
  • the liquid crystal display panel further includes a liquid crystal layer, and the liquid crystal layer is located between the pixel electrode layer and the common electrode layer.
  • the array substrate further includes a thin film transistor layer formed on the second substrate, and the thin film transistor layer is electrically connected to the pixel electrode layer through a via.
  • the thin film transistor layer includes a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer insulating layer, and a source and drain layer.
  • the thin film transistor layer includes at least one thin film transistor unit, and each of the thin film transistor units corresponds to at least one liquid crystal lens unit.
  • the liquid crystal lens unit is composed of the common electrode layer, the pixel electrode layer, and the liquid crystal molecules corresponding to the pixel electrode unit.
  • the color filter substrate further includes a color resist layer formed on the first substrate, the color resist layer covering the first substrate and the first black matrix.
  • the first opening is any one of a regular shape such as a triangle, a quadrangle, a circle, an ellipse or the like.
  • the liquid crystal display panel further includes a first coating protective layer and a second coating protective layer;
  • the first coating protection layer is formed on the first black matrix to cover the first substrate and the first black matrix
  • the second coating protection layer is formed on the second black matrix to cover the second substrate and the second black matrix.
  • the invention also provides a liquid crystal display panel comprising:
  • the color film substrate comprising:
  • the first black matrix formed on the first substrate, the first black matrix including at least one first opening;
  • the second black matrix including at least one first protrusion, wherein the first protrusion is disposed opposite to the first opening, the first opening One-to-one correspondence with the first protrusions;
  • the pixel electrode layer including at least one pixel electrode unit, wherein the pixel electrode unit is composed of at least one ring, the pixel electrode unit is configured to cause illumination
  • the light of the pixel electrode unit is focused to a central area of the ring to achieve a bright state of the liquid crystal display panel.
  • the liquid crystal display panel further includes a liquid crystal layer, and the liquid crystal layer is located between the pixel electrode layer and the common electrode layer.
  • the array substrate further includes a thin film transistor layer formed on the second substrate, and the thin film transistor layer is electrically connected to the pixel electrode layer through a via.
  • the thin film transistor layer includes a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer insulating layer, and a source and drain layer.
  • the thin film transistor layer includes at least one thin film transistor unit, and each of the thin film transistor units corresponds to at least one liquid crystal lens unit.
  • the liquid crystal lens unit is composed of the common electrode layer, the pixel electrode layer, and the liquid crystal molecules corresponding to the pixel electrode unit.
  • the color filter substrate further includes a color resist layer formed on the first substrate, the color resist layer covering the first substrate and the first black matrix.
  • the first opening is any one of a regular shape such as a triangle, a quadrangle, a circle, an ellipse or the like.
  • the liquid crystal display panel further includes a first coating protective layer and a second coating protective layer;
  • the first coating protection layer is formed on the first black matrix to cover the first substrate and the first black matrix
  • the second coating protection layer is formed on the second black matrix to cover the second substrate and the second black matrix.
  • the present invention replaces a conventional polarizer-free structure by a liquid crystal lens structure composed of a common electrode layer, a pixel electrode layer, and liquid crystal molecules in a liquid crystal layer.
  • the liquid crystal molecules in the present invention can be replaced by conventional liquid crystal molecules, which reduces the manufacturing cost, and simultaneously lowers the starting voltage of the liquid crystal display panel, and also improves the contrast of the liquid crystal display panel.
  • FIG. 1 is a circuit diagram showing a pixel structure in the prior art according to the present invention.
  • FIG. 2 is a circuit diagram showing a pixel structure according to a preferred embodiment of the present invention.
  • FIG. 3 is a top plan view showing a pixel structure according to a preferred embodiment of the present invention.
  • FIG. 4 is a top plan view of a pixel structure in accordance with a preferred embodiment of the present invention.
  • the present invention provides a liquid crystal display panel in which a liquid crystal lens structure is used in place of a conventional polarizerless structure, the starting voltage of the liquid crystal display panel is lowered, and the contrast of the liquid crystal display panel is improved. This technical issue.
  • a film layer structure of a liquid crystal display panel according to a preferred embodiment of the present invention, wherein the liquid crystal display panel comprises: a color filter substrate, an array substrate disposed opposite to the color filter substrate, and liquid crystal molecules 101 between the color filter substrate and the array substrate.
  • the color filter substrate includes a first substrate 102 and a first black matrix 103.
  • the black matrix includes a plurality of horizontal light-shielding strips for shielding the scan lines, and a plurality of vertical light-shielding strips for shielding the data lines;
  • the first substrate 102 is usually monocrystalline silicon or polycrystalline silicon, and the first substrate 102 is Forming a black matrix on the first, applying a photoresist layer on the first black matrix 103, and forming at least one first opening on the black matrix by a patterning process of exposure, development, etching, and stripping using a mask.
  • the first opening 111 is any one of a regular shape such as a triangle, a quadrangle, a circle, or an ellipse. In the embodiment, preferably, the first opening 111 is circular;
  • the color filter substrate further includes a color resist layer and a common electrode layer 104.
  • the color resist layer includes a red color resist, a green color resist, and a blue color resist.
  • Each of the thin film transistor units 112 corresponds to one of the color resists; and the first resist layer 105 is deposited on the color resist.
  • a common electrode layer 104 is deposited on the coating layer.
  • the material of the common electrode is a transparent conductive material such as zinc tin oxide and indium tin oxide.
  • the array substrate includes a second substrate 106, a second black matrix 107, a second coating protective layer 108, and a pixel electrode layer
  • the second black matrix 107 includes a first protrusion 115107, and the first protrusion 115107 is disposed opposite to the first opening 111, wherein the first protrusion 115
  • the area of the first opening 111 is not greater than the area of the first opening 111, and the first opening 111 corresponds to the first protrusion 115; wherein the first protrusion 115
  • the first protrusion 115 is circular;
  • the second coating protection layer 108 is formed on the second black matrix 107, and the second black matrix 107 is And the second substrate 106 is covered, and the second coating protection layer 108 plays the same role as the first coating protection layer 105 to ensure the second coating protection layer 108
  • the flatness of the liquid crystal molecules 101 is prevented from being deformed by the presence of the second black matrix 107 due to the presence of the second black matrix 107, causing the liquid crystal display panel to display an abnormality;
  • the pixel electrode is formed on the second coating protection layer 108
  • the transparent conductive material such as zinc tin oxide and indium tin oxide is the same as the material of the common electrode;
  • the pixel electrode layer includes at least one pixel electrode unit 113, wherein each of the pixel electrode units 113 Forming at least one ring, focusing light to a central area of the ring to achieve a bright state of the liquid crystal display panel;
  • each of the pixel electrode units 113 is formed on the first protrusion 115, and the pixel electrode unit 113 is electrically connected through the pixel electrode line 114; in this embodiment, the pixel electrode solution is coated on the second coating protection layer 108, The solvent in the transparent metal solution is removed by baking or the like, and the solution-type transparent metal is subjected to a curing treatment, wherein the pixel electrode passes through the via hole and the thin film transistor layer 110 in the second substrate 106. Connected; preferably, the shape of the pixel electrode is annular;
  • the array substrate further includes a thin film transistor layer 110 formed on the second substrate 106, the thin film transistor layer 110 includes a buffer layer, an active layer, a gate insulating layer, a gate layer, an interlayer insulating layer, and a source and drain layer;
  • the buffer layer is disposed on a surface of the second substrate 106, the active layer is disposed on a surface of the buffer layer; the gate insulating layer is disposed on a surface of the active layer, and the active layer is The layer is completely covered with the buffer layer; A gate insulating layer is deposited on the active layer by a chemical method.
  • the material of the gate insulating layer is silicon nitride, and silicon oxide, silicon oxynitride, or the like may also be used.
  • the gate layer is formed on a surface of the gate insulating layer, and the gate layer is patterned by the first metal layer to form a gate and a gate line of the thin film transistor;
  • the first metal layer film is deposited by a magnetron sputtering process.
  • the material of the first metal layer may be a metal such as molybdenum, aluminum, aluminum-nickel alloy, molybdenum-tungsten alloy, chromium, or copper.
  • the interlayer insulating layer is disposed on a surface of the first metal layer, and covers the first metal layer and the gate insulating layer to isolate the first metal layer and the second metal layer; a source drain formed on the inter-insulating layer, the source drain being patterned by a second metal layer to form a source and a drain of the thin film transistor layer 110, the second metal layer
  • the material is the same as the material of the first metal layer.
  • each of the thin film transistor layers 110 includes at least one thin film transistor unit 112, and each of the thin film transistor units 112 Corresponding to at least one liquid crystal lens unit; wherein the liquid crystal lens unit is composed of the common electrode layer, the pixel electrode layer, and the liquid crystal molecules corresponding to the pixel electrode unit, and each of the liquid crystal lens units includes one The pixel electrode unit 113 ;
  • FIG. 3 is a first embodiment of the present invention, as shown, in one of the thin film transistor units 112, the thin film transistor unit 112 corresponds to one of the liquid crystal lens units;
  • FIG. 4 is a second embodiment of the present invention. As shown in the figure, in one of the thin film transistor units 112, the thin film transistor unit 112 Corresponding to the four liquid crystal lens units; each of the liquid crystal lens units includes one pixel electrode unit 113.
  • each of the pixel electrode units 113 includes two concentric rings, and the pixel electrode unit 113 is electrically connected through the pixel electrode line 114; the pixel electrode unit 113 is used to cause illumination to the pixel electrode unit 113 Light rays are focused to a central area of the ring to achieve a bright state of the liquid crystal display panel;
  • each of the thin film transistor units 112 may be required according to different pixel density requirements.
  • the number of liquid crystal lens units is selected, and the more the number of the liquid crystal lens units in the single thin film transistor unit 112, the larger the pixel density of the liquid crystal display panel, and vice versa;
  • a black matrix is included in both the color film substrate and the array substrate, and the first black matrix 103 and the second black matrix 107 It can also play the role of shading at the same time, and can adjust the brightness of the liquid crystal display panel reasonably.
  • the present invention provides a liquid crystal display panel comprising a color filter substrate, an array substrate disposed opposite the color film substrate, and a liquid crystal layer between the color film substrate and the array substrate;
  • the array substrate includes a second substrate, a second black matrix, a pixel electrode layer, and a thin film transistor layer.
  • the pixel electrode layer includes at least one pixel electrode unit, the pixel electrode unit is composed of at least one ring, and is focused by light to a central region of the ring to realize a bright state of the liquid crystal display panel;
  • the liquid crystal lens structure is replaced by a liquid crystal lens structure composed of a common electrode layer, a pixel electrode layer, and a liquid crystal layer in the liquid crystal layer, instead of the conventional unpolarized film structure,
  • the liquid crystal molecules in the present invention can be replaced by conventional liquid crystal molecules, which reduces the manufacturing cost, and simultaneously lowers the starting voltage of the liquid crystal display panel, and also improves the contrast of the liquid crystal display panel.

Abstract

一种液晶显示面板,液晶显示面板包括彩膜基板、阵列基板以及位于彩膜基板与阵列基板之间的液晶层(103);阵列基板包括像素电极层,像素电极层包括至少一个像素电极单元(113),像素电极单元(113)用于使得照射到像素电极单元(113)的光线聚焦到圆环的中心区域,以实现液晶显示面板的亮态。

Description

一种液晶显示面板 技术领域
本发明涉及液晶显示器领域,特别涉及 一种液晶显示面板 。
背景技术
液晶显示器( Liquid Crystal Display , LCD )是目前市场上应用最为广泛的显示产品,其生产工艺技术十分成熟,产品良率高,生产成本相对较低,市场接受度高。
液晶显示面板通常由彩色滤光片基板、薄膜晶体管阵列基板以及配置于两基板间的液晶层所构成,并分别在两基板的相对内侧设置像素电极、公共电极,通过施加电压控制液晶分子改变方向,将背光模组的光线折射出来产生画面。液晶显示器包括扭曲向列( TN )模式、电子控制双折射( ECB )模式、垂直配向( VA )等多种显示模式。
在现有的 LCD 中,往往需要使用两层的偏光片作偏振作用,但是偏光片的透过率一般只有 40% 左右,所以现有的 LCD 透过率最高只有 20% 左右,并不能应用于透明显示上,而且在一般的 LCD 生产中,偏光片的贴附需要人工,或者自动机台操作,同时由于操作过程中的问题导致有一定数量的不良片出现,如有尘、贴片的气泡、偏光片贴歪等工艺难度高、生产的良率和效益都不足。
因此,为了提高液晶显示器的亮度,无偏光片的 LCD 显示器开始进入人们的视野,图 1 所示为本发明现有技术中一种液晶显示面板的膜层结构图,所示液晶显示面板包括彩膜基板、阵列基板以及位于所述彩膜基板和所述阵列基板之间的液晶分子层 10 ;所述彩膜基板包括第一基板 20 、黑色矩阵 30 、色阻层以及公共电极层 40 ,所述阵列基板包括第二基板 50 、薄膜晶体管层 60 以及像素电极层 70 ,另外,在所述液晶分子层 10 中还存有一定数量的网状聚合物 80 ;这一技术的实现也使得所述液晶分子与传统液晶具有一定的差异,使得现有技术中的液晶显示面板的启动电压大大增加,液晶分子的结构越来越复杂等问题。
技术问题
本发明提供了一种液晶显示面板,以一种液晶透镜结构替代传统的无偏光片结构,降低了所述液晶显示面板的启动电压,提高了所述液晶显示面板的对比度。
技术解决方案
为实现上述方案,本发明提供的技术方案如下:
本发明提供了一种液晶显示面板,其包括:
彩膜基板,所述彩膜基板包括:
第一基板;
第一黑色矩阵,形成于所述第一基板上,所述第一黑色矩阵包括至少一个第一开口;
公共电极层,形成于所述第一基板上;
阵列基板,与所述彩膜基板相对设置,所述阵列基板包括:
第二基板;
第二黑色矩阵,形成于所述第二基板上,所述第二黑色矩阵包括至少一个第一凸起,其中,所述第一凸起与所述第一开口相对设置,所述第一开口与所述第一凸起一一对应,
其中,所述第一凸起为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者,所述第一凸起的面积不大于所述第一开口的面积;
像素电极层,形成于所述第二黑色矩阵上,所述像素电极层包括至少一个像素电极单元,其中,所述像素电极单元由至少一个圆环构成,所述像素电极单元用于使得照射到所述像素电极单元的光线聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态。
根据本发明一优选实施例,所述液晶显示面板还包括液晶层,所述液晶层位于所述像素电极层与所述公共电极层之间。
根据本发明一优选实施例,所述阵列基板还包括形成于所述第二基板上的薄膜晶体管层,所述薄膜晶体管层通过过孔与所述像素电极层电性连接。
根据本发明一优选实施例, 所述薄膜晶体管层包括缓冲层、有源层、栅绝缘层、栅极层、间绝缘层、源漏极层。
根据本发明一优选实施例,所述薄膜晶体管层包括至少一个薄膜晶体管单元,每一所述薄膜晶体管单元对应至少一个液晶透镜单元。
根据本发明一优选实施例,所述液晶透镜单元由所述像素电极单元所对应的所述公共电极层、所述像素电极层以及所述液晶分子构成。
根据本发明一优选实施例,所述彩膜基板还包括色阻层,所述色阻层形成于所述第一基板上,所述色阻层覆盖所述第一基板和所述第一黑色矩阵。
根据本发明一优选实施例,所述第一开口为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者。
根据本发明一优选实施例,所述液晶显示面板还包括第一涂覆保护层和第二涂覆保护层;
所述第一涂覆保护层形成于所述第一黑色矩阵上,覆盖所述第一基板和所述第一黑色矩阵,
所述第二涂覆保护层形成于所述第二黑色矩阵上,覆盖所述第二基板和所述第二黑色矩阵。
本发明还提供了一种液晶显示面板,其包括:
彩膜基板,所述彩膜基板包括:
第一基板;
第一黑色矩阵,形成于所述第一基板上,所述第一黑色矩阵包括至少一个第一开口;
公共电极层,形成于所述第一基板上;
阵列基板,与所述彩膜基板相对设置,所述阵列基板包括:
第二基板;
第二黑色矩阵,形成于所述第二基板上,所述第二黑色矩阵包括至少一个第一凸起,其中,所述第一凸起与所述第一开口相对设置,所述第一开口与所述第一凸起一一对应;
像素电极层,形成于所述第二黑色矩阵上,所述像素电极层包括至少一个像素电极单元,其中,所述像素电极单元由至少一个圆环构成,所述像素电极单元用于使得照射到所述像素电极单元的光线聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态。
根据本发明一优选实施例,所述液晶显示面板还包括液晶层,所述液晶层位于所述像素电极层与所述公共电极层之间。
根据本发明一优选实施例,所述阵列基板还包括形成于所述第二基板上的薄膜晶体管层,所述薄膜晶体管层通过过孔与所述像素电极层电性连接。
根据本发明一优选实施例, 所述薄膜晶体管层包括缓冲层、有源层、栅绝缘层、栅极层、间绝缘层、源漏极层。
根据本发明一优选实施例,所述薄膜晶体管层包括至少一个薄膜晶体管单元,每一所述薄膜晶体管单元对应至少一个液晶透镜单元。
根据本发明一优选实施例,所述液晶透镜单元由所述像素电极单元所对应的所述公共电极层、所述像素电极层以及所述液晶分子构成。
根据本发明一优选实施例,所述彩膜基板还包括色阻层,所述色阻层形成于所述第一基板上,所述色阻层覆盖所述第一基板和所述第一黑色矩阵。
根据本发明一优选实施例,所述第一开口为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者。
根据本发明一优选实施例,所述液晶显示面板还包括第一涂覆保护层和第二涂覆保护层;
所述第一涂覆保护层形成于所述第一黑色矩阵上,覆盖所述第一基板和所述第一黑色矩阵,
所述第二涂覆保护层形成于所述第二黑色矩阵上,覆盖所述第二基板和所述第二黑色矩阵。
有益效果
本发明的有益效果:相比于现有技术,本发明通过由公共电极层、像素电极层以及液晶层中的液晶分子构成液晶透镜结构替代了传统的无偏光片结构, 使得本发明中的液晶分子能被传统的液晶分子所替代,降低了制作成本,同时使得所述液晶显示面板的启动电压下降,也提高了所述液晶显示面板的对比度。
附图说明
为了更清楚地说明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单介绍,显而易见地,下面描述中的附图仅仅是发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图 1 所示为本发明现有技术中一种像素结构的电路示意图;
图 2 所示为本发明优选实施例一种像素结构的电路示意图 ;
图 3 所示为本发明优选实施例一一种像素结构的俯视图;
图 4 所示为本发明优选实施例二一种像素结构的俯视图。
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示,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,结构相似的单元是用以相同标号表示。
本发明提供了一种液晶显示面板,以一种液晶透镜结构替代传统的无偏光片结构,降低了所述液晶显示面板的启动电压,提高了所述液晶显示面板的对比度,本实施例能够实施该技术问题。
如图 2 所示为本发明优选实施例一一种液晶显示面板的膜层结构,其中,所述液晶显示面板包括: 彩膜基板、与所述彩膜基板相对设置的阵列基板、以及位于所述彩膜基板与所述阵列基板之间的液晶分子 101 。
所述 彩膜基板包括第一基板 102 、第一黑色矩阵 103 ;所述黑色矩阵包括多条用于遮挡扫描线的水平遮光条,以及多条用于遮挡数据线的垂直遮光条;
其中,优选的,所述第一基板 102 通常为单晶硅或者多晶硅,在所述第一基板 102 上首先形成一层黑色矩阵,在所述第一黑色矩阵 103 涂布光阻层, 采用掩模板通过曝光、显影、蚀刻、剥离的构图工艺处理在所述黑色矩阵上形成至少一个第一开口 111 , 所述第一开口 111 为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者,在本实施例中,优选的,所述第一开口 111 为圆形 ;
此外,所述彩膜基板还包括色阻层和公共电极层 104 :所述色阻层包括红色色阻、绿色色阻以及蓝色色阻,每一薄膜晶体管单元 112 对应其中一个色阻;在所述色阻上,沉积第一涂覆保护层 105 ,将所述色阻层和所述第一黑色矩阵 103 所覆盖,并且保证所述涂覆保护层的平整性,此处,由于所述第一黑色矩阵 103 的存在,导致所述阵列基板表面变形,混乱倾倒,从而使得所述液晶显示面板显示异常,第一涂覆保护层 105 的存在保证了所述阵列基板的平整性;虽然保证了平面的平整性,但是,所述光源在经过所述涂覆保护层时,会在原穿透率基础上损失约 3% ;
然后,在所述涂覆层上,沉积一层公共电极层 104 ,所述公共电极的材料为氧化锌锡和氧化铟锡等透明的导电材料。
所述阵列基板包括第二基板 106 、第二黑色矩阵 107 、第二涂覆保护层 108 以及像素电极层 109 ;所述第二黑色矩阵 107 包括第一凸起 115107 ,所述第一凸起 115107 与所述第一开口 111 相对设置,其中,所述第一凸起 115 的面积不大于所述第一开口 111 的面积,所述第一开口 111 与所述第一凸起 115 一一对应;其中,所述第一凸起 115 为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者,在本实施例中,优选的,所述第一凸起 115 为圆形;
所述第二涂覆保护层 108 形成于所述第二黑色矩阵 107 之上,将所述第二黑色矩阵 107 和所述第二基板 106 覆盖,所述第二涂覆保护层 108 与所述第一涂覆保护层 105 起着相同的作用, 保证所述第二涂覆保护层 108 的平整性,避免所述液晶分子 101 因所述第二黑色矩阵 107 的存在,导致地形变形,混乱倾倒,使得所述液晶显示面板显示异常;
所述像素电极形成于所述第二涂覆保护层 108 上,与所述公共电极的材料相同,为氧化锌锡和氧化铟锡等透明的导电材料; 所述像素电极层包括至少一个像素电极单元 113 ,其中,每一所述像素电极单元 113 由至少一个圆环构成,通过光聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态;
所述像素电极层经过图案化后,每一所述像素电极单元 113 形成于所述第一凸起 115 上,像素电极单元 113 之间通过像素电极线 114 电性连接; 在本实施例中,在所述第二涂覆保护层 108 上涂布像素电极溶液, 再用烘烤等方法去除透明金属溶液中的溶剂,并对所述溶液型透明金属进行固化处理,其中,所述像素电极通过过孔与所述第二基板 106 内的薄膜晶体管层 110 相连接;优选的,所述像素电极的形状为环形;
另外,所述阵列基板还包括形成于所述第二基板 106 上的薄膜晶体管层 110 , 所述薄膜晶体管层 110 包括缓冲层、有源层、栅绝缘层、栅极层、间绝缘层、源漏极层;
所述缓冲层设置于所述第二基板106的表面,所述有源层设置于所述缓冲层的表面;所述栅绝缘层设置于所述有源层的表面,并将所述有源层与所述缓冲层完全覆盖; 利用化学方法在所述有源层上沉积栅极绝缘层,在本实施例中,所述栅极绝缘层的材料为氮化硅,也可以使用氧化硅和氮氧化硅等 ;所述栅极层形成于所述栅绝缘层表面,所述栅极层由第一金属层经图案化处理而形成薄膜晶体管的栅极与栅线; 优选的,利用磁控溅射工艺沉积第一金属层薄膜,在本实施例中,所述第一金属层的材料可以采用钼、铝、铝镍合金、钼钨合金、铬、或铜等金属,也可以使用上述几种材料薄膜的组合结构; 所述间绝缘层,设置于所述第一金属层表面,将所述第一金属层与所述栅绝缘层覆盖,用以将所述第一金属层及所述第二金属层隔离;所述源漏极形成于所述间绝缘层之上,所述源漏极由第二金属层经图案化处理而形成所述薄膜晶体管层110的源极和漏极,所述第二金属层的材料和所述第一金属层的材料相同。
另外,每一所述所述薄膜晶体管层 110 包括至少一个薄膜晶体管单元 112 ,每一所述薄膜晶体管单元 112 对应至少一个液晶透镜单元;其中,所述液晶透镜单元由所述像素电极单元所对应的所述公共电极层、所述像素电极层以及所述液晶分子构成,每一所述液晶透镜单元包括一个所述像素电极单元 113 ;
图 3 为本发明优选实施例一,如图所示,在一个所述薄膜晶体管单元 112 中,所述薄膜晶体管单元 112 对应一个所述液晶透镜单元;图 4 为本本发明优选实施例二,如图所述,在一个所述薄膜晶体管单元 112 中,所述薄膜晶体管单元 112 对应四个所述液晶透镜单元;每一所述液晶透镜单元包括一个像素电极单元 113 ,在本实施例中,每一所述像素电极单元 113 包括两个同心圆环,像素电极单元 113 之间通过像素电极线 114 电性连接;所述像素电极单元 113 用于使得照射到所述像素电极单元 113 的光线聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态;
另外,根据不同像素密度的需求可以对每一所述薄膜晶体管单元 112 中的液晶透镜单元的数目进行选择,单个所述薄膜晶体管单元 112 中的所述液晶透镜单元的数目越多,液晶显示面板的像素密度越大,反之越小;
彩膜基板和阵列基板中均包括黑色矩阵,所述第一黑色矩阵 103 和所述第二黑色矩阵 107 能同时起到遮光的作用,可以对液晶显示面板的亮度进行合理的调节。
本发明提出了一种液晶显示面板,所述液晶显示面板包括彩膜基板、与所述彩膜基板相对设置的阵列基板以及位于所述彩膜基板与所述阵列基板之间的液晶层;所述阵列基板包括第二基板、第二黑色矩阵、像素电极层以及薄膜晶体管层, 所述像素电极层包括至少一个像素电极单元,所述像素电极单元由至少一个圆环构成,通过光聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态;本发明 通过由公共电极层、像素电极层以及液晶层中的液晶分子构成液晶透镜结构替代了传统的无偏光片结构, 使得本发明中的液晶分子能被传统的液晶分子所替代,降低了制作成本,同时使得所述液晶显示面板的启动电压下降,也提高了所述液晶显示面板的对比度。
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,其包括:
    彩膜基板,所述彩膜基板包括:
    第一基板;
    第一黑色矩阵,形成于所述第一基板上,所述第一黑色矩阵包括至少一个第一开口;
    公共电极层,形成于所述第一基板上;
    阵列基板,与所述彩膜基板相对设置,所述阵列基板包括:
    第二基板;
    第二黑色矩阵,形成于所述第二基板上,所述第二黑色矩阵包括至少一个第一凸起,所述第一凸起与所述第一开口相对设置,所述第一开口与所述第一凸起一一对应,
    其中,所述第一凸起为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者,所述第一凸起的面积不大于所述第一开口的面积;
    像素电极层,形成于所述第二黑色矩阵上,所述像素电极层包括至少一个像素电极单元,其中,所述像素电极单元由至少一个圆环构成,所述像素电极单元用于使得照射到所述像素电极单元的光线聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态。
  2. 根据权利要求 1 所述的液晶显示面板,其中,所述液晶显示面板还包括液晶层,所述液晶层位于所述像素电极层与所述公共电极层之间。
  3. 根据权利要求 1 所述的液晶显示面板,其中,所述阵列基板还包括形成于所述第二基板上的薄膜晶体管层,所述薄膜晶体管层通过过孔与所述像素电极层电性连接。
  4. 根据权利要求 3 所述的液晶显示面板,其中, 所述薄膜晶体管层包括缓冲层、有源层、栅绝缘层、栅极层、间绝缘层、源漏极层。
  5. 根据权利要求 3 所述的液晶显示面板,其中,所述薄膜晶体管层包括至少一个薄膜晶体管单元,每一所述薄膜晶体管单元对应至少一个液晶透镜单元。
  6. 根据权利要求 5 所述的液晶显示面板,其中,所述液晶透镜单元由所述像素电极单元所对应的所述公共电极层、所述像素电极层以及所述液晶分子构成。
  7. 根据权利要求 1 所述的液晶显示面板,其中,所述彩膜基板还包括色阻层,所述色阻层形成于所述第一基板上,所述色阻层覆盖所述第一基板和所述第一黑色矩阵。
  8. 根据权利要求 1 所述的液晶显示面板,其中,所述第一开口为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者。
  9. 根据权利要求 1 所述的液晶显示面板,其中,所述液晶显示面板还包括第一涂覆保护层和第二涂覆保护层;
    所述第一涂覆保护层形成于所述第一黑色矩阵上,覆盖所述第一基板和所述第一黑色矩阵,
    所述第二涂覆保护层形成于所述第二黑色矩阵上,覆盖所述第二基板和所述第二黑色矩阵。
  10. 一种液晶显示面板,其包括:
    彩膜基板,所述彩膜基板包括:
    第一基板;
    第一黑色矩阵,形成于所述第一基板上,所述第一黑色矩阵包括至少一个第一开口;
    公共电极层,形成于所述第一基板上;
    阵列基板,与所述彩膜基板相对设置,所述阵列基板包括:
    第二基板;
    第二黑色矩阵,形成于所述第二基板上,所述第二黑色矩阵包括至少一个第一凸起,其中,所述第一凸起与所述第一开口相对设置,所述第一开口与所述第一凸起一一对应;
    像素电极层,形成于所述第二黑色矩阵上,所述像素电极层包括至少一个像素电极单元,其中,所述像素电极单元由至少一个圆环构成,所述像素电极单元用于使得照射到所述像素电极单元的光线聚焦到所述圆环的中心区域,以实现所述液晶显示面板的亮态。
  11. 根据权利要求 10 所述的液晶显示面板,其中,所述液晶显示面板还包括液晶层,所述液晶层位于所述像素电极层与所述公共电极层之间。
  12. 根据权利要求 10 所述的液晶显示面板,其中,所述阵列基板还包括形成于所述第二基板上的薄膜晶体管层,所述薄膜晶体管层通过过孔与所述像素电极层电性连接。
  13. 根据权利要求 12 所述的液晶显示面板,其中, 所述薄膜晶体管层包括缓冲层、有源层、栅绝缘层、栅极层、间绝缘层、源漏极层。
  14. 根据权利要求 12 所述的液晶显示面板,其中,所述薄膜晶体管层包括至少一个薄膜晶体管单元,每一所述薄膜晶体管单元对应至少一个液晶透镜单元。
  15. 根据权利要求 14 所述的液晶显示面板,其中,所述液晶透镜单元由所述像素电极单元所对应的所述公共电极层、所述像素电极层以及所述液晶分子构成。
  16. 根据权利要求 10 所述的液晶显示面板,其中,所述彩膜基板还包括色阻层,所述色阻层形成于所述第一基板上,所述色阻层覆盖所述第一基板和所述第一黑色矩阵。
  17. 根据权利要求 10 所述的液晶显示面板,其中,所述第一开口为三角形、四边形、圆形、椭圆形等规则的形状中的任意一者。
  18. 根据权利要求 10 所述的液晶显示面板,其中,所述液晶显示面板还包括第一涂覆保护层和第二涂覆保护层;
    所述第一涂覆保护层形成于所述第一黑色矩阵上,覆盖所述第一基板和所述第一黑色矩阵,
    所述第二涂覆保护层形成于所述第二黑色矩阵上,覆盖所述第二基板和所述第二黑色矩阵。
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