WO2019127782A1 - 一种液晶面板及显示装置 - Google Patents

一种液晶面板及显示装置 Download PDF

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Publication number
WO2019127782A1
WO2019127782A1 PCT/CN2018/073982 CN2018073982W WO2019127782A1 WO 2019127782 A1 WO2019127782 A1 WO 2019127782A1 CN 2018073982 W CN2018073982 W CN 2018073982W WO 2019127782 A1 WO2019127782 A1 WO 2019127782A1
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Prior art keywords
substrate
tft substrate
liquid crystal
tft
crystal panel
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PCT/CN2018/073982
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English (en)
French (fr)
Inventor
景小红
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惠州市华星光电技术有限公司
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Priority to US15/749,495 priority Critical patent/US20200142241A1/en
Publication of WO2019127782A1 publication Critical patent/WO2019127782A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/119—Details of rigid insulating substrates therefor, e.g. three-dimensional details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/28—Applying non-metallic protective coatings
    • H05K3/285—Permanent coating compositions
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13456—Cell terminals located on one side of the display only
    • 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
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0277—Bendability or stretchability details
    • H05K1/028—Bending or folding regions of flexible printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10128—Display
    • H05K2201/10136—Liquid Crystal display [LCD]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10287—Metal wires as connectors or conductors

Definitions

  • the present invention relates to the field of liquid crystal display technology, and more particularly to a liquid crystal panel and a display device.
  • the borderless display refers to a display device with a very narrow screen frame.
  • the display screen and the frame are fused together to make the physical border invisible.
  • Design its great advantage is that the appearance is outstanding, compared to the display with a thick border in the past, no border can bring a true horizontal screen, so that the appearance is more fashionable; another big advantage is that the use of no
  • the display technology of the frame technology can realize the splicing of the display well, realize two-screen, triple-screen and even multi-screen, and the borderless display can maximize the effect of the screen.
  • the borderless display can give users a wider visual effect, eliminating the sense of restraint of the original thick-frame display.
  • the borderless design of the liquid crystal display is usually a color filter (color filter) that extends from the upper end of the substrate (Thin Film Transistor Array, TFT) substrate on the lower side of the liquid crystal panel.
  • a light sheet referred to as a CF substrate, is provided with a Bonding end at the extension to connect the driving chip to the printed circuit board. Since the bonding area line device causes a reflection problem after binding, the extended area is required.
  • the printing process makes the process of the borderless liquid crystal panel complicated, which increases the production cost.
  • the binding end since the binding end generally needs a certain width, although there is no physical border in this case, the viewing surface is tied. The width of the fixed end is present and wider, reducing the user experience.
  • the present invention provides a liquid crystal panel and a display device to provide a low cost frameless liquid crystal panel.
  • the present invention provides a liquid crystal panel comprising a TFT substrate, a ring of sealant enclosing the edge of the upper surface of the TFT substrate, a CF substrate covered on the sealant, and a liquid crystal injected into the sealant. And a lead wire, wherein the same side end surface of the TFT substrate and the CF substrate exceeds a corresponding side end surface of the sealant, and one end of the lead wire is connected to an electrode line on an upper surface of the TFT substrate. The other end is bent and then led out to the back surface of the TFT substrate to form a binding terminal.
  • the CF substrate has an excess length that is not less than an excess length of the TFT substrate, so that the CF substrate completely blocks the TFT substrate.
  • the outer surface of the TFT substrate and the CF substrate are respectively attached with a first polarizer and a second polarizer, and the first polarizer completely covers the outer surface of the CF substrate.
  • the second polarizer is attached to an outer surface of the TFT substrate and adjacent to the binding terminal.
  • the TFT substrate and the CF substrate are filled with an encapsulant between the excess portions.
  • a groove is formed on a surface of the CF substrate opposite to the TFT, and the groove is filled with the encapsulant.
  • the lead wire is in close contact with the outer surface of the TFT substrate.
  • the lead wires are printed or etched on the surface of the TFT substrate.
  • the present invention further provides a display device including a backlight module and the liquid crystal panel, wherein the backlight module is disposed on a side of the TFT substrate facing away from the CF substrate, and light emitted from the backlight module After passing through the TFT, it is emitted from the surface of the CF substrate.
  • the liquid crystal panel provided by the present invention uses the CF substrate and the polarizer thereon as the viewing surface, and the TFT substrate does not need to be everted, so that the TFT side line reflection problem does not need to be printed, which reduces the cost;
  • the binding terminal of the panel is disposed on the back surface of the TFT substrate through the lead wire, and the CF above the front end of the TFT and the upper side thereof can be increased to eliminate the step difference on the front surface of the TFT, so that the CF substrate and the upper bias are appreciable, and secondly,
  • the width of the lead area on the front side can be narrowed, which can increase the proportion of the screen to go, and improve the user experience.
  • FIG. 1 is a schematic structural view of an embodiment of a liquid crystal panel of the present invention
  • Figure 2 is an enlarged schematic view of a portion I of Figure 1;
  • FIG. 3 is a schematic structural view of another embodiment of a liquid crystal panel of the present invention.
  • Figure 4 is an enlarged schematic view of a portion II of Figure 1;
  • Fig. 5 is a schematic structural view of a display device of the present invention.
  • the liquid crystal panel of the present invention comprises a TFT (Thin Film Transistor) substrate 10 opposite to the backlight assembly, a frame sealant 30 disposed on the upper surface of the TFT substrate 10, and a cover frame glue.
  • the CF (Color filter) substrate 20 on the 30, the liquid crystal 40 is provided in the sealant 30 between the TFT substrate 10 and the CF substrate 20. It can be understood that the area where the liquid crystal 40 is provided forms the display of the liquid crystal panel.
  • the bonding terminal 10-1 for connecting the COF 80 is formed on the back surface of the TFT substrate 10, and the bonding terminal 10-1 is provided with a conductive terminal, so that the COF 80 is electrically connected to the conductive terminal.
  • the excess length of the CF substrate 20 is equal to the excess length of the TFT substrate 10, and the shape of the CF substrate 20 is the same as that of the TFT substrate 10, so that the upper end of the TFT substrate 10 is The CF substrate 20 is just covering the TFT substrate 10.
  • the lead wires 70 beyond the partially connected TFT substrate 10 are not attached to the surface of the TFT substrate 10.
  • the lead wire 70 is easily damaged. Therefore, the present embodiment is further improved based on the above embodiment. Referring to FIG. 3 and FIG. 4, the CF substrate 20 is exceeded. The length is slightly larger than the excess length of the TFT substrate 10, so that the lead wire 70 can be placed in the excess length space of the CF substrate 20, so that the lead wire 70 can be performed on the basis of reducing the excess length of the non-display as much as possible.
  • the CF substrate 20 at this time not only satisfies the TFT substrate 10 completely covering the lower end, but also extends a portion of the TFT substrate 10 at one end of the lead wire 70 so that the excess portion protects the lead wire 70.
  • the first polarizer 50 and the second polarizer 60 are respectively attached to the outer surfaces of the TFT substrate 10 and the CF substrate 20. Further, the first polarizer 50 completely covers the outside of the CF substrate 20. At this time, the first polarizer 50 becomes the outermost viewing surface and completely covers the TFT substrate 10 at the lower end, and the second polarizer 60 is attached to the outer surface of the TFT substrate 10. It can be understood that when the lead wire 70 is bent and pasted When the bonding terminal 10-1 is formed on the outer surface of the TFT substrate 10, the second polarizer 60 is attached to the outer surface of the TFT substrate 10 from which the bonding terminal 10-1 is removed.
  • the side portion of the liquid crystal panel needs to be packaged, that is, the cavity formed between the CF substrate 20 and the excess portion of the TFT substrate 10 is filled, and the filling can be performed in various ways.
  • the encapsulant 300 is injected from the side of the cavity for encapsulation, and the encapsulant 300 can partially wrap the lead wire 70 at the end face of the TFT substrate 10 to protect the lead wire 70.
  • a groove 201 may be disposed on the lower surface of the excess portion of the CF substrate 20.
  • the recess 201 may be filled with the encapsulant 300 to achieve tightness of the upper and lower substrates. In this manner, the excess length of the upper and lower substrates can be effectively reduced without affecting the fastening connection between the upper and lower substrates, thereby increasing the screen ratio of the visible area.
  • the purpose of the lead wire 70 is to design a bonding terminal which must be designed on the upper surface of the TFT substrate 10 through the lead wire 70 on the lower surface of the TFT substrate 10, so that the width exceeding the upper surface can be reduced, and thus the lead wire 70 can be reduced.
  • the lead wire 70 is in close contact with the outer surface of the TFT substrate 10 for the sake of structural tightness and aesthetic appearance, that is, the lead wire 70 extends from the upper surface of the excess portion of the TFT substrate 10 to The side of the TFT substrate 10 is up to the back surface of the TFT substrate 10, and the lead line 70 is printed or etched on the surface of the TFT substrate 10.
  • the display device of the present embodiment includes a backlight module 100 and the liquid crystal panel described above.
  • the backlight module 100 is disposed on a side of the TFT substrate 10 facing away from the CF substrate 20 , and the backlight module 100 .
  • the emitted light is emitted from the surface of the CF substrate 20 after passing through the TFT substrate 10.
  • the COFS0 includes a flexible circuit board and a driving IC (integrated circuit) on the flexible circuit board, and the liquid crystal panel is connected to the PCB board 90 through the flexible circuit board of the COFS0.
  • the CF substrate and the polarizer thereon are used as the viewing surface, and the TFT substrate does not need to be everted, so that the TFT side line reflection problem does not need to be printed, which reduces the cost; and the binding terminal of the liquid crystal panel is taken out at the same time.
  • the wire is disposed on the back surface of the TFT substrate, and the CF on the front side of the TFT beyond the end is increased, so as to eliminate the step difference on the front surface of the TFT, the CF substrate and the upper bias are appreciable, and the lead portion of the front surface can be narrowed.
  • the width is increased to increase the screen area of the viewable area to enhance the user experience.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种液晶面板及一种显示装置，液晶面板包括TFT基板（10）、围设于TFT基板（10）上表面边缘的一圈封框胶（30）、盖设于封框胶（30）上的CF基板（20）及注入封框胶（30）内侧的液晶（40），还包括引出线（70），TFT基板（10）和CF基板（20）的同侧端面均超出封框胶（30）的相应侧端面，引出线（70）的一端与TFT基板（10）超出部分上表面的电极线相连，另外一端弯折后引出至TFT基板（10）背面形成绑定端子（10-1）。液晶面板将CF基板（20）及其上的偏光片（50、60）作为观看面，TFT侧线路无需做印刷处理，降低了成本；同时将液晶面板的绑定端子（10-1）通过引出线（70）设置于TFT基板（10）的背面，将TFT正面超出端上方的CF及其上偏增大，以消除TFT正面的段差，使CF基板（20）及上偏具有可外观性，其次可以缩窄正面的引线区的宽度，以增加可视区的屏占比。

Description

一种液晶面板及显示装置 技术领域
本发明涉及液晶显示技术领域，更具体的说，它涉及一种液晶面板及显示装置。
背景技术
液晶显示器的无边框(Bezel Less)整机逐渐成为一个流行的设计趋势，无边框显示器是指屏幕边框极窄的显示器设备，采用将显示器屏幕和边框融合在一起造成视觉上看不到物理边框的设计，它的一大优点就是外观出众，相比过去带着厚边框的显示器，无边框能带来真正意义上的水平屏幕，从而使外形上更有时尚感；另一大优点就是，采用无边框技术的显示器可以很好的实现显示器拼接，实现两联屏、三联屏甚至多联屏，而无边框显示器能最大化体现联屏的效果。此外，无边框显示器能给用户带来更宽广的视觉效果，消除了原先厚边框显示器的束缚感。
目前液晶显示器的无边框设计通常是在液晶面板中将设置于下端的阵列(Thin Film Transistor array，即薄膜晶体管阵列，简称TFT)基板的一侧延伸出上端的彩膜(Color filter，即彩色滤光片，简称CF)基板，在延伸部位设置Bonding(绑定)端以连接驱动芯片从而连至印刷线路板，由于在绑定之后，绑定区域线路器件会造成反光问题，因此需要对延伸区域进行印刷处理，使得无边框的液晶面板工艺变得复杂，增加了生产成本，另外，由于绑定端一般需要一定的宽度，因此，虽然该种情况下视觉上没有物理边框，但是查看面中绑定端的宽度是存在且较宽的，降低了用户体验度。
发明内容
鉴于现有技术存在的缺陷，本发明提供了一种液晶面板及显示装置，以提供一种低成本的无边框液晶面板。
为了实现上述的目的，本发明采用了如下的技术方案：
本发明提供了一种液晶面板，包括TFT基板、围设于TFT基板上表面边缘 的一圈封框胶、盖设于所述封框胶上的CF基板及注入所述封框胶内侧的液晶，还包括引出线，所述TFT基板和所述CF基板的同侧端面均超出所述封框胶的相应侧端面，所述引出线的一端与所述TFT基板超出部分上表面的电极线相连，另外一端弯折后引出至所述TFT基板背面形成绑定端子。
作为其中一种实施方式，所述CF基板的超出长度不小于所述TFT基板的超出长度，以使所述CF基板完全遮挡所述TFT基板。
作为其中一种实施方式，所述TFT基板和所述CF基板的外表面分别贴附有第一偏光片和第二偏光片，所述第一偏光片完全覆盖所述CF基板的外表面，所述第二偏光片贴附于所述TFT基板的外表面并与所述绑定端子相邻。
作为其中一种实施方式，所述TFT基板和所述CF基板超出部分之间填充有封装胶。
作为其中一种实施方式，所述CF基板的超出部分与所述TFT相对的表面上设有凹槽，所述凹槽内填充有所述封装胶。
作为其中一种实施方式，所述引出线紧贴所述TFT基板的外表面。
作为其中一种实施方式，所述引出线通过印刷或蚀刻于所述TFT基板的表面。
本发明还提供了一种显示装置，包括背光模组和所述的液晶面板，所述背光模组设于所述TFT基板背离所述CF基板的一侧，自所述背光模组发出的光经过所述TFT后自所述CF基板表面射出。
与现有技术相比，本发明提供的液晶面板将CF基板及其上的偏光片作为观看面，TFT基板无需外翻，故TFT侧线路反光问题无需做印刷处理，降低了成本；同时将液晶面板的绑定端子通过引出线设置于TFT基板的背面，可将TFT正面超出端上方的CF及其上偏增大，以消除TFT正面的段差，使CF基板及上偏具有可外观性，其次可以缩窄正面的引线区的宽度，可增加可是去的屏占比，提升用户体验。
附图说明
图1是本发明液晶面板的一实施例的结构示意图；
图2是图1中I部的放大示意图；
图3是本发明液晶面板的另一实施例的结构示意图；
图4是图1中II部的放大示意图；
图5是本发明显示装置的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参见图1和图3，本发明的液晶面板，包括与背光组件相对的TFT(Thin Film Transistor，薄膜晶体管)基板10、设于TFT基板10上表面的封框胶30及盖设于封框胶30上的CF(Color filter，彩色滤光片)基板20，TFT基板10和CF基板20之间的封框胶30内设有液晶40，可以理解，设有液晶40的区域形成液晶面板的显示区域，其中TFT基板10和CF基板20的同侧端面均超出所述封框胶30的该侧端面，TFT基板10超出部分的上表面电连接有引出线70，引出线70弯折后在所述TFT基板10背面形成用于连接COF80的绑定端子10-1，绑定端子10-1上设有导电端子，使得COF80与导电端子电连接。
作为本发明的一实施例，参见图1和图2，CF基板20的超出长度与TFT基板10的超出长度相等，并CF基板20的形状与TFT基板10的形状相同，使得TFT基板10上端的CF基板20是刚好覆盖TFT基板10。
作为本发明的另一实施例，由于在实施例一中CF基板20的超出长度与TFT基板10的超出长度相等，当TFT基板10超出部分连接的引出线70不与TFT基板10的表面贴附时，则引出线70会暴露于TFT基板10的外端面，容易造成引出线70损坏，因此，基于上述实施例，本实施例做了进一步改进，参见图3和图4，CF基板20的超出长度略大于TFT基板10的超出长度，使得引出线70可以恰好置于CF基板20多出的长度空间内，这样既可以在尽可能减小非显示的超出长度的基础上可以对引出线70进行保护，可以理解，此时的CF基板20不仅满足完全覆盖下端的TFT基板10，而且在设置引出线70的一端超出TFT基板10一段，使得超出的部分对引出线70进行保护。
其中，参见图1和图3，TFT基板10和CF基板20的外表面分别贴附有第一偏光片50和第二偏光片60，进一步的，第一偏光片50完全覆盖CF基板20的外表面，此时，第一偏光片50成为最外观看面并且完全覆盖下端的TFT基板 10，第二偏光片60贴附于TFT基板10的外表面，可理解，当引出线70弯折后贴附在TFT基板10的外表面形成绑定端子10-1时，第二偏光片60贴附在除去绑定端子10-1的TFT基板10的外表面上。
具体的，当将引出线70引出后，需对液晶面板的侧部进行封装，即对CF基板20与TFT基板10超出部分之间形成的空腔进行填充，该填充可通过多种方式进行，例如，从空腔的侧部注入封装胶300进行封装，封装胶300可将TFT基板10侧部端面处的引出线70进行部分包裹，可对引出线70进行保护。
为了使得上下基板之间更加紧固连接，可以在CF基板20的超出部分的下表面上设有凹槽201，在上述封装过程中可对凹槽201内填充封装胶300以实现上下基板的紧固连接，通过该种方式，可以有效的减小上下基板的超出长度而不影响上下基板之间的紧固连接，从而可增加可视区的屏占比。
具体的，引出线70的目的是将原本必须设计在TFT基板10上表面的绑定端子通过引出线70设计于TFT基板10的下表面，从而可以减小上表面超出的宽度，因此引出线70引出之后只要能够与COFS0连接即可，其中，为了结构的紧促也为了外观的美观，引出线70紧贴TFT基板10的外表面，即引出线70从TFT基板10超出部分的上表面延伸至TFT基板10侧部直至TFT基板10的背面，其中，引出线70通过印刷或蚀刻于所述TFT基板10的表面。
参见图5，相应地，本实施例的显示装置包括背光模组100和上述所述的液晶面板，背光模组100设于TFT基板10背离所述CF基板20的一侧，自背光模组100发出的光经过所述TFT基板10后自CF基板20表面射出。其中COFS0包括柔性线路板和柔性线路板上的驱动IC(集成电路)，液晶面板通过COFS0的柔性线路板连接PCB板90。
本实施例的液晶面板将CF基板及其上的偏光片作为观看面，TFT基板无需外翻，故TFT侧线路反光问题无需做印刷处理，降低了成本；同时将液晶面板的绑定端子通过引出线设置于TFT基板的背面，可将TFT正面超出端上方的CF及其上偏增大，以消除TFT正面的段差，使CF基板及上偏具有可外观性，其次可以缩窄正面的引线区的宽度，以增加可视区的屏占比，提升用户体验。
以上仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种液晶面板，其中，包括TFT基板、围设于TFT基板上表面边缘的一圈封框胶、盖设于所述封框胶上的CF基板及注入所述封框胶内侧的液晶，还包括引出线，所述TFT基板和所述CF基板的同侧端面均超出所述封框胶的相应侧端面，所述引出线的一端与所述TFT基板超出部分上表面的电极线相连，另外一端弯折后引出至所述TFT基板背面形成绑定端子。
  2. 根据权利要求1所述的液晶面板，其中：所述引出线紧贴所述TFT基板的外表面。
  3. 根据权利要求2所述的液晶面板，其中：所述引出线通过印刷或蚀刻于所述TFT基板的表面。
  4. 根据权利要求1所述的液晶面板，其中：所述CF基板的超出长度不小于所述TFT基板的超出长度，以使所述CF基板完全遮挡所述TFT基板。
  5. 根据权利要求4所述的液晶面板，其中：所述TFT基板和所述CF基板的外表面分别贴附有第一偏光片和第二偏光片，所述第一偏光片完全覆盖所述CF基板的外表面，所述第二偏光片贴附于所述TFT基板的外表面并与所述绑定端子相邻。
  6. 根据权利要求5所述的液晶面板，其中：所述TFT基板和所述CF基板超出部分之间填充有封装胶。
  7. 根据权利要求6所述的液晶面板，其中：所述引出线紧贴所述TFT基板的外表面。
  8. 根据权利要求6所述的液晶面板，其中：所述CF基板的超出部分与所述TFT相对的表面上设有凹槽，所述凹槽内填充有所述封装胶。
  9. 根据权利要求8所述的液晶面板，其中：所述引出线紧贴所述TFT基板的外表面。
  10. 根据权利要求9所述的液晶面板，其中：所述引出线通过印刷或蚀刻于所述TFT基板的表面。
  11. 一种显示装置，其中，包括背光模组和液晶面板，所述液晶面板包括TFT基板、围设于TFT基板上表面边缘的一圈封框胶、盖设于所述封框胶上的 CF基板及注入所述封框胶内侧的液晶，还包括引出线，所述TFT基板和所述CF基板的同侧端面均超出所述封框胶的相应侧端面，所述引出线的一端与所述TFT基板超出部分上表面的电极线相连，另外一端弯折后引出至所述TFT基板背面形成绑定端子，所述背光模组设于所述TFT基板背离所述CF基板的一侧，自所述背光模组发出的光经过所述TFT后自所述CF基板表面射出。
  12. 根据权利要求11所述的显示装置，其中：所述引出线紧贴所述TFT基板的外表面。
  13. 根据权利要求12所述的显示装置，其中：所述引出线通过印刷或蚀刻于所述TFT基板的表面。
  14. 根据权利要求11所述的显示装置，其中：所述CF基板的超出长度不小于所述TFT基板的超出长度，以使所述CF基板完全遮挡所述TFT基板。
  15. 根据权利要求14所述的显示装置，其中：所述TFT基板和所述CF基板的外表面分别贴附有第一偏光片和第二偏光片，所述第一偏光片完全覆盖所述CF基板的外表面，所述第二偏光片贴附于所述TFT基板的外表面并与所述绑定端子相邻。
  16. 根据权利要求15所述的显示装置，其中：所述TFT基板和所述CF基板超出部分之间填充有封装胶。
  17. 根据权利要求16所述的显示装置，其中：所述引出线紧贴所述TFT基板的外表面。
  18. 根据权利要求16所述的显示装置，其中：所述CF基板的超出部分与所述TFT相对的表面上设有凹槽，所述凹槽内填充有所述封装胶。
  19. 根据权利要求18所述的显示装置，其中：所述引出线紧贴所述TFT基板的外表面。
  20. 根据权利要求19所述的显示装置，其中：所述引出线通过印刷或蚀刻于所述TFT基板的表面。
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