WO2019127729A1 - 一种液晶面板及其制作方法 - Google Patents

一种液晶面板及其制作方法 Download PDF

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Publication number
WO2019127729A1
WO2019127729A1 PCT/CN2018/073170 CN2018073170W WO2019127729A1 WO 2019127729 A1 WO2019127729 A1 WO 2019127729A1 CN 2018073170 W CN2018073170 W CN 2018073170W WO 2019127729 A1 WO2019127729 A1 WO 2019127729A1
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WIPO (PCT)
Prior art keywords
liquid crystal
polarizer
substrate
crystal panel
encapsulant
Prior art date
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PCT/CN2018/073170
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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 US15/752,565 priority Critical patent/US20190384080A1/en
Publication of WO2019127729A1 publication Critical patent/WO2019127729A1/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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technology, and more particularly to a liquid crystal panel and a method of fabricating the same.
  • 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 liquid crystal display mainly includes two parts of the liquid crystal panel and the backlight module.
  • the borderless design of the liquid crystal display is usually realized by canceling the front frame of the module and the front casing of the whole machine.
  • the liquid crystal panel usually includes a color filter (color filter, CF for short) substrate and a thin film transistor array (TFT) substrate, and the two are filled with Liquid crystal, in the prior art, the borderless design of the liquid crystal panel is generally adopted in the following two design ways:
  • the first one is to use the CF substrate as the viewing surface.
  • the CF substrate is placed on the upper end of the TFT substrate.
  • the polarizing plate is disposed on the CF substrate.
  • the TFT substrate is connected to the COF (Chip On Film) after the CF substrate and the polarizer are disposed. Crystal film), so the bonding end of the COF connected to it needs to exceed the CF substrate and the polarizer on it, which leads to the need to process the binding end of the COF at the end of the connection, usually by dispensing Filling process, and if manual dispensing is used for dispensing, the dispensing is relatively random and the consistency is poor due to manual operation.
  • COF Chip On Film
  • the liquid crystal panel has low yield and low production efficiency; if dispensing equipment is used for dispensing, the production cost of the liquid crystal panel is high due to the expensive dispensing equipment for the process;
  • the second method is to externally use the TFT substrate as the viewing surface.
  • the metal trace on the TFT substrate has an optical effect on the liquid crystal panel. Therefore, it is necessary to perform printing processing on the periphery of the TFT. The process of the liquid crystal panel is complicated, and the production cost is also increased.
  • the present invention provides a liquid crystal panel and a manufacturing method thereof, to provide a frameless liquid crystal panel with low cost and simple manufacturing process.
  • the present invention provides a liquid crystal panel including a TFT substrate, a CF substrate disposed on the TFT substrate, a liquid crystal filled between the TFT substrate and the CF substrate, and a first surface attached to an outer surface of the CF substrate.
  • a polarizing plate wherein at least one end surface of the TFT substrate extends beyond the side end surface of the CF substrate to form a binding end for connecting a COF, the first polarizer completely covers the TFT substrate, and the first polarized light
  • An encapsulant is disposed between the sheet and the end of the binding end and the end of the binding end, and the COF portion adjacent to the end surface of the binding end is wrapped in the encapsulant.
  • a groove is formed on a surface of the binding end opposite to the first polarizer, and the groove is filled with the encapsulant.
  • the binding end is press-fitted with an anisotropic conductive film, and the COF is electrically connected to the conductive terminal of the binding end through the anisotropic conductive film.
  • the encapsulant comprises a first encapsulant formed by melting of a thermoplastic film and/or a second encapsulant injected from a side by a panel edge coater.
  • Another object of the present invention is to provide a method for fabricating a liquid crystal panel, comprising:
  • the cavity and the side of the binding end are sealed from the side.
  • the seal is sealed by injecting a second sealant from the side by a panel edge coater.
  • Another object of the present invention is to provide another method for fabricating a liquid crystal panel, including:
  • the first polarizer is vacuum-pressed to adhere the first polarizer to an outer surface of the CF substrate, and the thermoplastic film is heated and melted to fill the gap between the first polarizer and the binding end.
  • thermoplastic film is irradiated with UV light to cure it;
  • the cavity and the side of the binding end are sealed from the side.
  • the surface of the thermoplastic film before vacuum hot pressing protrudes from the surface of the CF substrate.
  • thermoplastic film is melted to form a first encapsulant.
  • the seal is sealed by injecting a second encapsulant from the side by a panel edge coater.
  • the liquid crystal panel provided by the present invention uses a polarizer on a CF substrate as a viewing surface, and a binding end of the liquid crystal panel is disposed between the polarizer and the TFT substrate, and is formed by melting a thermoplastic film.
  • the glue or the second encapsulant is injected from the side to fill the polarizer and the TFT substrate, and the frame is not required to cover the binding end, thereby realizing the frameless design and improving the visual effect and the viewing experience of the whole machine;
  • the groove is designed such that the polarizer is more tightly connected to the TFT substrate in the liquid crystal panel of the same width.
  • the method for fabricating the liquid crystal panel provided by the present invention is characterized in that the bonding end on the TFT substrate is first connected to the COF, and then the polarizing plate is attached to the outer surface of the external CF substrate after the connection is completed, without performing the bare binding end. Dispensing filling reduces the production cost and avoids the line printing process caused by the external TFT substrate, which simplifies the process.
  • FIG. 1 is a schematic structural view of a liquid crystal panel in front of a sealing portion according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural view of a liquid crystal panel after sealing a side portion according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flow chart of a method for fabricating a liquid crystal panel according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a liquid crystal panel attached to a polarizer according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic structural view of a liquid crystal panel attached to a polarizing plate according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural view of a liquid crystal panel attached to a side portion of the second embodiment of the present invention.
  • FIG. 7 is a schematic flow chart of a method for fabricating a liquid crystal panel according to Embodiment 2 of the present invention.
  • a liquid crystal panel provided in the first embodiment includes a TFT (Thin Film Transistor) substrate 10 opposite to the backlight module, and a CF (Color filter) disposed on the TFT substrate 10.
  • a color filter) substrate 20 and a liquid crystal 40 disposed between the TFT substrate 10 and the CF substrate 20, and the liquid crystal 40 may be encapsulated between the TFT substrate 10 and the CF substrate 20 by a sealant 30, the TFT substrate 10 and the CF substrate.
  • the second polarizer 50 and the first polarizer 60 are attached to the outer surface, respectively.
  • the sides of the CF substrate 20 that are disposed on the sealant 30 are flush with the sides of the sealant 30. It can be understood that the area where the liquid crystal 40 is provided forms the display area of the liquid crystal panel; In the fixed end arrangement, at least one end surface of the TFT substrate 10 extends beyond the end surface of the CF substrate 20 on the side, and of course, is also exceeded with respect to the sealant 30, and the excess portion forms a non-displayed binding end 10 for connecting the COF. 1.
  • the first polarizer 60 disposed on the CF substrate 20 is used as a viewing surface. Therefore, the shape and size of the first polarizer 60 are always the same as those of the TFT substrate 10, so that the first polarizer 60 is completely covered.
  • the first polarizer 60 is beyond the CF substrate 20, the first polarizer 60, the side of the sealant 30, and the side of the CF substrate 20, and the binding end 10-1.
  • a cavity having an opening is formed therebetween, wherein the cavity is filled with an encapsulant to encapsulate the liquid crystal panel.
  • the encapsulant not only seals the sealed liquid crystal panel but also shields the binding end 10-1.
  • the binding end 10-1 needs to be provided with a conductive terminal, and a large number of metal traces are designed thereon, such as Fanout (fanout line) ), WOA (Wire On Array) and GOA (Gate on Array) lines.
  • Fanout fanout line
  • WOA Wire On Array
  • GOA Gate on Array
  • the metal pattern density of these lines is large, which will cause obvious reflection and affect the visual effect of the whole machine.
  • the reflective light needs to be shielded from the metal trace after the completion of the routing.
  • the package adhesive not only fastens the first polarizer 60 at the upper end and the TFT substrate 10 at the lower end, but also performs the routing of the bonding end 10-1.
  • the method of shielding, sealing and shielding at the same time is simple to manufacture and simplifies the process.
  • the encapsulation of the first embodiment is filled in the following manner.
  • the filled encapsulant is a second encapsulant 702 injected from the side through the panel edge coating machine 200.
  • the second encapsulant 702 is injected into the cavity from the side of the liquid crystal panel by the panel edge coater 200 to perform a filling seal.
  • the encapsulant can be further extended, so that the COF 80 near the end of the binding end 10-1 is wrapped in the encapsulant, and the COF 80 can be protected.
  • the binding end 10-1 may be disposed on the surface opposite to the first polarizer 60.
  • the groove 102 wherein the groove is recessed downward from the upper surface of the TFT substrate 10, it can be understood that the recessed groove 102 communicates with the cavity between the first polarizer 60 and the TFT substrate 10, and the design can be reduced.
  • the fastening property between the first polarizer 60 and the TFT substrate 10 at the lower end is instead increased.
  • the groove may be spaced apart from each other, and the plurality of grooves are disposed.
  • the second encapsulant 702 reduces the non-display area and increases the fastening between the first polarizer 60 and the TFT substrate 10, thereby expanding the visual range of the user and improving the user experience.
  • the binding end 10-1 is press-fitted with an anisotropic conductive film, and one end of the COF 80 is electrically connected to the conductive terminal of the binding end 10-1 through the anisotropic conductive film, and One end is electrically connected to a printed circuit board (Printed Circuit Board) 90.
  • a printed circuit board Print Circuit Board
  • the method for fabricating the liquid crystal panel of the first embodiment includes:
  • the production of liquid crystal panels but the need to go through the "front Array process, the middle section Cell process, the rear section module assembly" three complex processes, in which the cutting master in S1 is built on the previous Array process has been completed, and has been completed
  • the CF substrate 20 is selected to be externally formed and a master is formed, and the formed master is cut according to the designed cutting size, wherein the TFT substrate is considered before cutting.
  • the side portion of the 10 is beyond the position and number of the CF substrate 10, and the position of the binding end 10-1 is determined, and the width beyond which the binding end 10-1 is exceeded is determined.
  • the binding end 10-1 is press-fitted with an anisotropic conductive film, and the COF 80 is electrically connected to the conductive terminal of the binding end 10-1 through the anisotropic conductive film.
  • the size and shape of the first polarizer 60 attached in S3 are completely the same as the size and shape of the TFT substrate 10 at the lower end, and the first polarizer 60 is aligned with the corners of the TFT substrate 10 before being attached.
  • the first polarizer 60 can completely cover the lower end of the TFT substrate 10, wherein the attached first polarizer 60 and the binding end 10-1 are disposed due to the arrangement of the binding end 10-1 on the TFT substrate 10.
  • An open cavity is formed between the sealant 30 and the side of the CF substrate 20.
  • the metal terminal is disposed on the binding end 10-1 in the cavity, in order to shield the reflective light and at the same time to encapsulate the side of the liquid crystal panel, the above-mentioned open cavity needs to be filled.
  • the filling is injected into the second encapsulant 702 from the side through the panel edge coater 200.
  • the encapsulant can be further extended, so that the COF 80 near the side of the binding end 10-1 is wrapped in the encapsulant, and the COF 80 can be protected to some extent after the side encapsulation is completed.
  • the appearance of the LCD panel is more rounded and full.
  • This embodiment is a further improvement of the filling method in the first embodiment.
  • the difference between the embodiment and the implementation 1 is that the filling manner of the encapsulant is different.
  • the solution in the first embodiment can be referred to. Let me repeat.
  • the cavity of the liquid crystal panel of the second embodiment is filled in the first step: the first filling of the first encapsulant 701, that is, the first on the CF substrate 20.
  • the first encapsulant 701 that is, the first on the CF substrate 20.
  • a thermoplastic film is attached to the binding end 10-1, and then the first polarizer 60 is attached to the first polarizer 60, and the thermoplastic film is melted and solidified to form a first encapsulant 701.
  • the second encapsulant 702 is injected into the cavity from the side of the liquid crystal panel through the panel edge coater 200 for further filling and sealing. .
  • the second encapsulant 702 can be further extended, so that the COF 80 near the end of the binding end 10-1 is wrapped in the encapsulant, and the COF 80 can be protected.
  • the packaging method combines the melt filling of the thermoplastic film with the side seal to ensure a full filling of the cavity between the TFT substrate 10 and the first polarizer 60, and the precision of the method is not high, and the filling is tighter and less likely to generate bubbles. Increased product yield.
  • thermoplastic film is melted to form the encapsulant, and the thermoplastic film may be directly disposed in the groove 102 or on the upper surface of the groove 102, and enter the groove 102 after the thermoplastic film is melted.
  • thermoplastic film attached thermoplastic film to the binding end 10-1;
  • the first polarizer 60 is vacuum-pressed, and the first polarizer 60 is attached to the outer surface of the CF substrate 20, and the thermoplastic film is heated and melted to fill the first polarizer 60. a cavity between the binding end 10-1;
  • the production of liquid crystal panels but through the "pre-stage Array process, the middle segment Cell process, the rear segment module assembly" three complex processes, in which the cutting master in S1' is built on the previous Array process has been completed, and has The process of bonding the TFT substrate 10 and the CF substrate 20 in the middle-stage Cell process is completed, and the CF substrate 20 is selected to be externally formed and a master is formed, and the formed master is cut according to the designed cutting size, wherein the TFT is considered before cutting.
  • the side of the substrate 10 is beyond the position and number of the CF substrate 10, and the position of the binding end 10-1 is determined, and the width beyond which the binding end 10-1 is exceeded is determined.
  • the binding end 10-1 is press-fitted with an anisotropic conductive film, and the COF 80 is electrically connected to the conductive terminal of the binding end 10-1 through the anisotropic conductive film.
  • thermoplastic film is attached to the binding end 10-1 in S3'; it can be understood that the connection of the COF 80 is completed before the thermal plastic film is attached, and the connection occupies a wide position, so the thermoplastic film is attached.
  • the thermoplastic film has a certain width, the thermoplastic film is directly attached to the upper surface of the COF 80.
  • the thermoplastic film may be attached to the bonded end 10-1 at a position where the COF 80 is not connected.
  • the step of S3' may be improved according to the structure, and according to the width of the groove 102 and the shape and size of the thermoplastic film. It is selected whether the thermoplastic film is directly attached to the groove 102 or directly attached to the upper surface of the groove 102 or a combination of the two, in order to provide a cured encapsulant in the last groove 102, The first polarizer 60 connected to the upper end and the TFT substrate 10 at the lower end are fastened.
  • thermoplastic film may be attached to the inside of the binding end 10-1 during the attachment of the thermoplastic film.
  • the attaching of the first polarizer 60 is required, wherein the second polarized light 50 is attached to the outer surface of the TFT substrate 10 before the S4' process is performed. Wherein the second polarizer 50 is completely attached to the outer surface of the TFT substrate 10.
  • a first polarizing film 60 is placed on the upper end of the CF substrate 20 in the specific S4', and the first polarizer 60 is brought into contact with the thermoplastic film; in this step, the thermoplastic film is partially attached, but It is necessary to fill the inside of the cavity and the groove 102 after the thermoplastic film is melted, and the surface of the thermoplastic film is required to protrude from the upper surface of the CF substrate 20 at the time of attaching. At this time, the first end of the CF substrate 20 is at the top. The polarizer 60 is in contact with the upper surface of the attached thermoplastic film.
  • the first polarizer 60 is vacuum-pressed, and the thermoplastic film that is in contact with the first polarizer 60 is heated and melted, so that the first polarizer 60 is moved down and attached to the outer surface of the CF substrate 20.
  • the heat-melted thermoplastic film initially fills the cavity between the first polarizer 60 and the TFT substrate 10; thereby performing a preliminary partial sealing on the liquid crystal panel, and also partially carrying out the metal trace on the bonding end 10-1. Shaded.
  • the position of the vacuum hot pressing is the position of the first polarizer 60 opposite to the thermoplastic film, that is, it is heated only at the position where the thermoplastic film is attached.
  • UV (ultraviolet) light irradiation in S6' can irradiate the molten thermoplastic film from the side of the liquid crystal panel and cure it.
  • the sealing of the specific S7' can be carried out with reference to the sealing of Example 1 to further seal the cavity.
  • the above-mentioned hot plastic film is a UV adhesive curing product, and has excellent adhesion to glass materials, and the neutral component does not attack ITO (Indium Tin Oxides, ie, indium tin oxide, ITO film, indium tin oxide semiconductor, transparent conductive Membrane) and polarizer, the film is adsorbed by the smooth surface before UV irradiation, and is easy to disassemble. After curing, the film is extremely stable, has good bonding performance, and has low shrinkage. After UV, its viscosity is enhanced, and heat and humidity have the characteristics of preheating and plasticizing, and the plasticizing temperature is about 60 °C.
  • the hot plastic film is easy to plasticize and has good filling performance, and is adhered to the cavity between the TFT substrate 10 and the first polarizer 10, and after being pressed by heat, it can be filled into the cavity.
  • the liquid crystal panel provided by the present invention has a polarizing plate on a CF substrate as a viewing surface, and a binding end of the liquid crystal panel is disposed between the polarizing plate and the TFT substrate, and is encapsulated by a hot plastic film or injected from a side portion.
  • the second encapsulant fills the polarizer and the TFT substrate, and does not need to be provided with a frame to shield the binding end, thereby realizing a frameless design, improving the visual effect and the viewing experience of the whole machine; and the design of the groove in the liquid crystal panel enables In the liquid crystal panel of the same width, the polarizer is more rigidly connected to the TFT substrate.
  • the method for fabricating the liquid crystal panel provided by the present invention is characterized in that the bonding end on the TFT substrate is first connected to the COF, and then the polarizing plate is attached to the outer surface of the external CF substrate after the connection is completed, without performing the bare binding end. Dispensing filling reduces the production cost and avoids the line printing process caused by the external TFT substrate, which simplifies the process.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
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Abstract

一种液晶面板，包括TFT基板（10）、设于TFT基板（10）上的CF基板（20）、填充于TFT基板（10）和CF基板（20）之间的液晶（40）及贴附于CF基板（20）外表面的第一偏光片（60），TFT基板（10）的至少一侧端面超出CF基板（20）的该侧端面，形成用于连接COF的绑定端（10-1），第一偏光片（60）完全覆盖TFT基板（10），第一偏光片（60）与绑定端（10-1）之间及绑定端（10-1）的端面处设有封装胶（30），靠近绑定端（10-1）端面的COF部分被包裹于封装胶（30）内。液晶面板的制作方法，液晶面板通过先将TFT基板（10）上的绑定端（10-1）与COF进行连接，再贴附第一偏光片（60）。无需对裸露的绑定端（10-1）进行点胶填充，降低了生产成本，也避免了因TFT基板（10）外置而产生的线路印刷制程，简化了工艺。

Description

一种液晶面板及其制作方法 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其制作方法。
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。
液晶显示器中主要包含有液晶面板与背光模块两大部分，目前液晶显示器的无边框设计通常通过取消模组的前框及整机前壳来实现。而液晶面板通常包括彩膜(color filter，即彩色滤光片，简称CF)基板和阵列(Thin Film Transistor array，即薄膜晶体管阵列，简称TFT)基板，二者对合之后在其之间填充有液晶，现有技术中实现液晶面板的无边框通常采用如下两种设计方式：
第一种是将CF基板外置作为查看面，此时CF基板置于TFT基板上端，CF基板上设有偏光片，由于TFT基板在设置CF基板及偏光片之后连接COF(Chip On Film，覆晶薄膜)，因此其上的连接COF的绑定端需要超出CF基板及其上的偏光片，而这样就导致了在最后对连接完成COF的绑定端需要进行处理，通常处理是通过点胶填充工艺，而点胶填充若采用人工点胶，则由于人工作业时点胶比较随意，一致性较差，很难实现标准化制造，点胶效果波动性较差，不能满足点胶工艺的精度要求，造成液晶面板良率低且生产效率低下；若采用点胶设备点胶，由于针对该工艺的点胶设备昂贵，造成液晶面板的生产成本高；
第二种是将TFT基板外置作为查看面，此时由于TFT基板绑定端连接完成 COF之后，其上的金属走线会对液晶面板产生光学影响，因此，需要对TFT***做印刷处理，使得液晶面板的工艺制程变得复杂，也提高了生产成本。
以上现有两种方式中的缺陷都导致了无边框显示器得不到大范围的推广与普及。
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其制作方法，以提供一种低成本、制作工艺简单的无边框液晶面板。
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、设于所述TFT基板上的CF基板、填充于所述TFT基板和CF基板之间的液晶及贴附于所述CF基板外表面的第一偏光片，所述TFT基板的至少一侧端面超出所述CF基板的该侧端面，形成用于连接COF的绑定端，所述第一偏光片完全覆盖所述TFT基板，所述第一偏光片与所述绑定端之间及所述绑定端的端面处设有封装胶，靠近所述绑定端端面的所述COF部分被包裹于所述封装胶内。
作为其中一种实施方式，所述绑定端与所述第一偏光片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，所述绑定端上压合有异方性导电胶膜，所述COF通过所述异方性导电胶膜与绑定端的导电端子电连接。
作为其中一种实施方式，所述封装胶包括由热塑性胶膜熔融形成的第一封装胶和/或通过面板边缘涂覆机从侧部注入的第二封装胶。
本发明的另一目的在于提供一种液晶面板的制作方法，包括：
切割母板，形成液晶盒；其中，所述液晶盒的TFT基板的超出部分形成绑定端；
将COF与所述绑定端电连接；
贴附第一偏光片至所述CF基板的外表面上，使所述第一偏光片与所述绑定端之间形成腔体；
从侧部对所述腔体及所述绑定端的侧部进行密封。
作为其中一种实施方式，所述密封通过面板边缘涂覆机从侧部注入第二封 装胶进行密封。
本发明的另一目的在于提供另外一种液晶面板的制作方法，包括：
切割母板，形成液晶盒；其中，所述液晶盒的TFT基板的超出部分形成绑定端；
将COF与所述绑定端电连接；
贴附热塑性胶膜至所述绑定端；
放置第一偏光片至所述CF基板的上端，且使所述第一偏光片与所述热塑性胶膜接触；
真空热压所述第一偏光片，使所述第一偏光片贴附于所述CF基板的外表面，同时所述热塑性胶膜受热熔融填充所述第一偏光片与绑定端之间的腔体；
UV光照射填充后的热塑性胶膜，使其固化；
从侧部对所述腔体及所述绑定端的侧部进行密封。
作为其中一种实施方式，所述真空热压前热塑性胶膜的表面凸出所述CF基板的表面。
作为其中一种实施方式，所述热塑性胶膜熔融形成第一封装胶。
作为其中一种实施方式，所述密封通过面板边缘涂覆机从侧部注入第二封装胶进行密封。
与现有技术相比，本发明提供的液晶面板将CF基板上的偏光片作为观看面，将液晶面板的绑定端设置于偏光片与TFT基板之间，并通过热塑胶膜熔融形成的封装胶或者从侧部注入第二封装胶对偏光片与TFT基板之间进行填充，无需设置边框遮蔽绑定端，实现了无边框设计，提升整机的视觉效果和观看体验；同时该液晶面板中凹槽的设计，使得在相同宽度的液晶面板中，偏光片与TFT基板连接更紧固。本发明提供的液晶面板的制作方法，通过先将TFT基板上的绑定端与COF进行连接，连接完成后再在外置的CF基板的外表面贴附偏光片，无需对裸露的绑定端进行点胶填充，降低了生产成本，也避免了因TFT基板外置而产生的线路印刷制程，简化了工艺。
附图说明
图1是本发明实施例一中液晶面板侧部密封前的结构示意图；
图2是本发明实施例一中液晶面板侧部密封后的结构示意图；
图3是本发明实施例一液晶面板的制作方法的流程示意图；
图4是本发明实施例二中液晶面板贴附上偏光片前的结构示意图；
图5是本发明实施例二中液晶面板贴附上偏光片后的结构示意图；
图6是本发明实施例二中液晶面板贴侧部密封后的结构示意图；
图7是本发明实施例二液晶面板的制作方法的流程示意图。
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。
实施例一
参见图1和图2，本实施例一提供的一种液晶面板，包括与背光模组相对的TFT(Thin Film Transistor，薄膜晶体管)基板10、及设于TFT基板10上的CF(Color filter，彩色滤光片)基板20、及设于TFT基板10和CF基板20之间的液晶40，液晶40可通过封框胶30封装在TFT基板10和CF基板20之间，TFT基板10和CF基板外表面分别贴附有第二偏光片50和第一偏光片60。
其中，盖设于封框胶30上的CF基板20的各侧边与封框胶30的各侧边齐平，可以理解，设有液晶40的区域形成液晶面板的显示区域；为了液晶面板绑定端的设置，TFT基板10的至少一侧端面超出CF基板20该侧的端面，当然，相对于封框胶30也是超出的，超出的部分形成非显示的用于连接COF的绑定端10-1，在本设计中，将设于CF基板20上的第一偏光片60作为观看面，因此第一偏光片60的形状和尺寸始终与TFT基板10的一致，使得第一偏光片60完全覆盖TFT基板10，可以理解，此时第一偏光片60相对于CF基板20是超出的，第一偏光片60、封框胶30的侧部和CF基板20的侧部、绑定端10-1之间形成一个有开口的腔体，其中该腔体中填充封装胶对液晶面板进行封装。
其中，封装胶不仅对密封液晶面板进行密封还能够对绑定端10-1进行遮蔽，绑定端10-1由于需要设置导电端子，其上会设计大量的金属走线，例如Fanout(扇出线)、WOA(Wire On Array，阵列外布线)和GOA(Gate on Array，栅阵列)等线路，这些线路的金属图案密度较大，会造成明显的反光，影响整机 的视觉效果，因此为了遮蔽该反光，在完成走线之后需要对其金属走线进行遮蔽，封装胶不仅使得上端的第一偏光片60与下端的TFT基板10紧固连接，也对绑定端10-1的走线进行了遮蔽，密封与遮蔽同时进行的方式，制作简单，简化了工艺。
具体的，本实施例一的封装胶的填充方式如下，结合图1和图2所示，填充的封装胶是通过面板边缘涂覆机200从侧部注入的第二封装胶702。在贴附完第一偏光片60之后，通过面板边缘涂覆机200从液晶面板的侧部对所述腔体注入第二封装胶702以进行填充密封。其中，可将封装胶进行进一步的延伸，使得靠近所述绑定端10-1端面处的COF80被包裹于封装胶内，可对COF80进行一定的保护。
其中，结合图1和图2，为了使上端的第一偏光片60和下端的TFT基板10之间连接更紧固，可在绑定端10-1与第一偏光片60相对的表面上设置凹槽102，其中，凹槽由TFT基板10的上表面向下凹陷，可以理解，凹陷后的凹槽102与第一偏光片60与TFT基板10之间的腔体连通，该设计可在减小非显示区宽度的基础上反而提升第一偏光片60和下端的TFT基板10之间的紧固性。其中，为了实现尽可能减小非显示区域的宽度而又不影响第一偏光片60和TFT基板10之间的紧固性，可以将该凹槽间隔设置多个，多个凹槽中均设置第二封装胶702，使得既减小了非显示区又增加了第一偏光片60与TFT基板10之间的紧固性，扩大了用户的视觉范围，提升用户体验。
结合图1和图2，绑定端10-1上压合有异方性导电胶膜，COF80的一端通过所述异方性导电胶膜与绑定端10-1的导电端子电连接，另外一端与PCB板(Printed Circuit Board，印刷电路板)90电连接。
基于实施例一中的液晶面板的结构，本实施例还对其制作工艺进行了改进，结合图1、图2及图7，本实施例一中液晶面板的制作方法包括：
S1、切割母板，形成液晶盒；其中，所述液晶盒的TFT基板10的超出部分形成绑定端10-1；
S2、将COF80与所述绑定端10-1电连接；
S3、贴附第一偏光片60至所述CF基板20的外表面上，使所述第一偏光片60与所述绑定端10-1之间形成腔体；
S4、从侧部对所述腔体及所述绑定端10-1的侧部进行密封。
其中，生产液晶面板，却需要经过“前段Array制程、中段Cell制程、后段模组组装”三个复杂的过程在，其中S1中的切割母版是建立在已经完成前段Array制程，且已完成中段Cell制程中的TFT基板10与CF基板20贴合的过程，选择CF基板20外置并形成母版，形成的母版根据设计好的切割尺寸进行切割，其中在切割前，需考虑TFT基板10侧部超出CF基板10的位置、数量，及确定绑定端10-1的位置，及确定绑定端10-1超出的宽度。
具体的，绑定端10-1上压合有异方性导电胶膜，COF80通过所述异方性导电胶膜与绑定端10-1的导电端子电连接。
具体的，S3中贴附的第一偏光片60的尺寸和形状与下端的TFT基板10的尺寸和形状完全一致，在贴附之前，将第一偏光片60与TFT基板10各边角对齐，以确保第一偏光片60可以完全遮盖下端的TFT基板10，其中由于TFT基板10上绑定端10-1的设置，使得贴附后的第一偏光片60与绑定端10-1之间及封框胶30与CF基板20的侧部之间形成有开口的腔体。
具体的，由于腔体中的绑定端10-1上设置有金属走线，因此为了遮蔽其反光且同时为了对液晶面板的侧部进行封装，则需将上述的有开口的腔体进行填充，其填充通过面板边缘涂覆机200从侧部注入第二封装胶702。其中，在注入的过程中，可将封装胶进行进一步的延伸，使得靠近绑定端10-1侧部的COF80被包裹于封装胶内，可对COF80进行一定的保护，完成侧部封装后的液晶面板的外观更加圆润饱满。
实施例二
当TFT基板10上的绑定端10-1较宽时，若选择实施例一中的填充方式则不能对第一偏光片60和绑定端10-1之间的腔体饱满填充，因此，本实施例是对实施例一中的填充方式进行的进一步改进，本实施例与实施一的区别仅在于封装胶的填充方式不同，对于其他结构，均可参照实施例一中的方案，再次不再赘述。
具体的，参见图4、图5和图6，本实施例二的液晶面板的腔体的填充方式为：先完成第一封装胶701的熔融填充，即在贴附CF基板20上的第一偏光片60之前，先在绑定端10-1上贴附热塑性胶膜，然后在贴附第一偏光片60时热压使得热塑性胶膜熔融并固化后形成第一封装胶701填充在上述的腔体中；完成上述的初步填充及贴附完第一偏光片60之后，再通过面板边缘涂覆机200从液晶面板的侧部对所述腔体注入第二封装胶702以进行进一步填充密封。其中， 可将第二封装胶702进行进一步的延伸，使得靠近所述绑定端10-1端面处的COF80被包裹于封装胶内，可对COF80进行一定的保护。其中该封装方式将热塑性胶膜熔融填充与侧部密封结合，以确保TFT基板10与第一偏光片60之间的腔体饱满填充，该方式精度要求不高、填充更紧促不易产生气泡，提高了产品的良率。
其中，采用热塑性胶膜熔融形成封装胶的形式，则热塑性胶膜可以直接设于凹槽102内也可设置于凹槽102的上表面，在热塑性胶膜熔融后进入凹槽102中。
基于实施二中的液晶面板的结构，本实施例还对其制作工艺进行了改进，结合图4、图5、图6及图7，本实施例二中的液晶面板的制作方法包括：
S1’、切割母板，形成液晶盒；其中，所述液晶盒的TFT基板10上包括绑定端10-1；
S2’、将COF80与所述绑定端10-1电连接；
S3’、贴附热塑性胶膜至所述绑定端10-1；
S4’、放置第一偏光片60至所述CF基板20的上端，且使所述第一偏光片60与所述热塑性胶膜接触；
S5’、真空热压所述第一偏光片60，使所述第一偏光片60贴附于所述CF基板20的外表面，同时所述热塑性胶膜受热熔融填充所述第一偏光片60与绑定端10-1之间的腔体；
S6’、UV光照射填充后的热塑性胶膜，使其固化。
S7’、从侧部对所述腔体及所述绑定端10-1的侧部进行密封。
其中，生产液晶面板，却需要经过“前段Array制程、中段Cell制程、后段模组组装”三个复杂的过程在，其中S1’中的切割母版是建立在已经完成前段Array制程，且已完成中段Cell制程中的TFT基板10与CF基板20贴合的过程，选择CF基板20外置并形成母版，形成的母版根据设计好的切割尺寸进行切割，其中在切割前，需考虑TFT基板10侧部超出CF基板10的位置、数量，及确定绑定端10-1的位置，及确定绑定端10-1超出的宽度。
具体的，绑定端10-1上压合有异方性导电胶膜，COF80通过所述异方性导电胶膜与绑定端10-1的导电端子电连接。
具体的，S3’中贴附热塑性胶膜至绑定端10-1；可以理解，在贴附热塑胶膜之前已完成COF80的连接，该连接占用较宽的位置，因此在贴附热塑性胶膜时，由于热塑性胶膜具有一定的宽度，因此直接将热塑性胶膜贴附于COF80的上表面，当然，也可以在绑定端10-1的没有连接COF80的位置上贴附热塑性胶膜。
相应的，绑定端10-1上设置用于紧固连接的凹槽102时，S3’的步骤中会随结构进行改进，可根据凹槽102的设置宽度及热塑性胶膜的形状及尺寸，选择是否在凹槽102中直接贴附热塑性胶膜或者是直接在凹槽102的上表面贴附或者是两者结合，目的都是为了在最后凹槽102中设有固化后的封装胶，以紧固连接上端的第一偏光片60和下端的TFT基板10。
其中，为了使得热塑性胶膜熔融后尽可能的填充腔体的内部，可在热塑性胶膜的贴附过程中，将热塑性胶膜靠近绑定端10-1的内部贴附。
具体的，在完成了热塑性胶膜的贴附之后，需要进行第一偏光片60的贴附，其中，可在进行S4’工艺之前，先在TFT基板10的外表面贴附第二偏光偏50，其中，第二偏光片50完全贴附TFT基板10的外表面。
具体的S4’中放置第一偏光60片至所述CF基板20的上端，且使第一偏光片60与所述热塑性胶膜接触；在该步骤中，由于热塑性胶膜部分贴附，但又需要在热塑性胶膜熔融后填充腔体内部及凹槽102，则需要在贴附时，设置热塑性胶膜的表面凸出CF基板20的上表面，则此时，处于CF基板20上端的第一偏光片60是与贴附后的热塑性胶膜上表面接触的。
具体的S5’中真空热压第一偏光片60，与第一偏光片60接触的热塑性胶膜受热熔融，使所述第一偏光片60下移并贴附于CF基板20的外表面上，受热熔融的热塑性胶膜初步填充第一偏光片60与TFT基板10之间的腔体；从而对液晶面板进行了初步的部分密封，也对绑定端10-1上的金属走线进行了部分遮蔽。其中，真空热压的位置为第一偏光片60上与热塑性胶膜相对的位置，即只针对贴附有热塑性胶膜的位置加热。
其中S6’中UV(紫外线)光照射可以从液晶面板的侧部对熔融的热塑性胶膜进行照射，并使其固化。
具体的S7’的密封可参照实施例1的密封进行，以对腔体进行进一步密封。
其中，上述的热塑胶膜为UV粘接固化类产品，对玻璃材质有优异的附着力，中性成分不侵蚀ITO(Indium Tin Oxides，即氧化铟锡，ITO薄膜即铟锡氧 化物半导体透明导电膜)和偏光片，UV照射前膜片靠光面吸附，易拆。固化后膜片极其稳定，粘接性能好，收缩率低，照UV后，其粘性增强，耐热耐湿具有预热塑化的特性，其塑化温度约60℃左右。热塑胶膜易塑化，填充性能佳，固将其贴附在TFT基板10与第一偏光片10之间的腔体中，经过热压后，可使其填充腔体。
本发明提供的液晶面板将CF基板上的偏光片作为观看面，将液晶面板的绑定端设置于偏光片与TFT基板之间，并通过热塑胶膜熔融形成的封装胶或者从侧部注入第二封装胶对偏光片与TFT基板之间进行填充，无需设置边框遮蔽绑定端，实现了无边框设计，提升整机的视觉效果和观看体验；同时该液晶面板中凹槽的设计，使得在相同宽度的液晶面板中，偏光片与TFT基板连接更紧固。本发明提供的液晶面板的制作方法，通过先将TFT基板上的绑定端与COF进行连接，连接完成后再在外置的CF基板的外表面贴附偏光片，无需对裸露的绑定端进行点胶填充，降低了生产成本，也避免了因TFT基板外置而产生的线路印刷制程，简化了工艺。
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 (14)

  1. 一种液晶面板，其中，包括TFT基板、设于所述TFT基板上的CF基板、填充于所述TFT基板和CF基板之间的液晶及贴附于所述CF基板外表面的第一偏光片，所述TFT基板的至少一侧端面超出所述CF基板的该侧端面，形成用于连接COF的绑定端，所述第一偏光片完全覆盖所述TFT基板，所述第一偏光片与所述绑定端之间及所述绑定端的端面处设有封装胶，靠近所述绑定端端面的所述COF部分被包裹于所述封装胶内。
  2. 根据权利要求1所述的液晶面板，其中：所述封装胶包括由热塑性胶膜熔融形成的第一封装胶和/或通过面板边缘涂覆机从侧部注入的第二封装胶。
  3. 根据权利要求1所述的液晶面板，其中：所述绑定端与所述第一偏光片相对的表面上设有凹槽，所述凹槽内填充有所述封装胶。
  4. 根据权利要求3所述的液晶面板，其中：所述封装胶包括由热塑性胶膜熔融形成的第一封装胶和/或通过面板边缘涂覆机从侧部注入的第二封装胶。
  5. 根据权利要求3所述的液晶面板，其中：所述绑定端上压合有异方性导电胶膜，所述COF通过所述异方性导电胶膜与绑定端的导电端子电连接。
  6. 根据权利要求5所述的液晶面板，其中：所述封装胶包括由热塑性胶膜熔融形成的第一封装胶和/或通过面板边缘涂覆机从侧部注入的第二封装胶。
  7. 一种液晶面板的制作方法，其中，包括：
    切割母板，形成液晶盒；其中，所述液晶盒的TFT基板的超出部分形成绑定端；
    将COF与所述绑定端电连接；
    贴附第一偏光片至所述CF基板的外表面上，使所述第一偏光片与所述绑定端之间形成腔体；
    从侧部对所述腔体及所述绑定端的侧部进行密封。
  8. 根据权利要求7所述的液晶面板的制作方法，其中：所述密封通过面板边缘涂覆机从侧部注入第二封装胶进行密封。
  9. 一种液晶面板的制作方法，其中，包括：
    切割母板，形成液晶盒；其中，所述液晶盒的TFT基板的超出部分形成绑定端；
    将COF与所述绑定端电连接；
    贴附热塑性胶膜至所述绑定端；
    放置第一偏光片至所述CF基板的上端，且使所述第一偏光片与所述热塑性胶膜接触；
    真空热压所述第一偏光片，使所述第一偏光片贴附于所述CF基板的外表面，同时所述热塑性胶膜受热熔融填充所述第一偏光片与绑定端之间的腔体；
    UV光照射填充后的热塑性胶膜，使其固化；
    从侧部对所述腔体及所述绑定端的侧部进行密封。
  10. 根据权利要求9所述的液晶面板的制作方法，其中：所述密封通过面板边缘涂覆机从侧部注入第二封装胶进行密封。
  11. 根据权利要求9所述的液晶面板的制作方法，其中：所述真空热压前热塑性胶膜的表面凸出所述CF基板的表面。
  12. 根据权利要求11所述的液晶面板的制作方法，其中：所述密封通过面板边缘涂覆机从侧部注入第二封装胶进行密封。
  13. 根据权利要求11所述的液晶面板的制作方法，其中：所述热塑性胶膜熔融形成第一封装胶。
  14. 根据权利要求13所述的液晶面板的制作方法，其中：所述密封通过面板边缘涂覆机从侧部注入第二封装胶进行密封。
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