WO2020168811A1 - 触摸显示设备、显示屏及其贴合方法 - Google Patents

触摸显示设备、显示屏及其贴合方法 Download PDF

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Publication number
WO2020168811A1
WO2020168811A1 PCT/CN2019/127163 CN2019127163W WO2020168811A1 WO 2020168811 A1 WO2020168811 A1 WO 2020168811A1 CN 2019127163 W CN2019127163 W CN 2019127163W WO 2020168811 A1 WO2020168811 A1 WO 2020168811A1
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WO
WIPO (PCT)
Prior art keywords
bonding
display screen
liquid crystal
glass
crystal module
Prior art date
Application number
PCT/CN2019/127163
Other languages
English (en)
French (fr)
Inventor
周科松
Original Assignee
广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2020168811A1 publication Critical patent/WO2020168811A1/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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • 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
    • G02F1/133331—Cover glasses
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

Definitions

  • the present disclosure relates to the field of display devices, and more specifically, to a touch display device, a display screen and a bonding method thereof.
  • LCM LCD Display Module
  • LCD liquid crystal module
  • PCB PCB circuit boards
  • backlights structural parts, etc.
  • LCM is due to its thickness
  • the advantages of thinness, no glare, no eye fatigue, easy colorization and no electromagnetic radiation are widely used in touch display devices and computer fields.
  • the purpose of the present disclosure is to provide a large-size touch display device, a display screen, and a bonding method thereof.
  • the liquid crystal module of the display screen can realize zero gap between the glass and the glass and the liquid crystal module can be avoided. Water mist can prevent the LCD module from being hit.
  • the present disclosure discloses a display screen, including glass and a liquid crystal module, in which,
  • the glass and the liquid crystal module have a corresponding bonding area, the bonding area is formed outside the display area of the liquid crystal module, and forms a closed pattern surrounding the display area;
  • the bonding area is provided with a first bonding layer, the first bonding layer has a side A and a side B, the side A of the first bonding layer is bonded to the glass, and the first bonding layer The B side of the bonding layer is bonded to the liquid crystal module.
  • the first bonding layer includes at least a first bonding part and a second bonding part, and the first bonding part is connected to the second bonding part.
  • the first bonding layer includes two first bonding parts and two second bonding parts, and the two first bonding parts are respectively connected to the two second bonding parts.
  • the two first bonding parts are arranged oppositely, and the two second bonding parts are arranged oppositely.
  • first bonding part are respectively provided with first protruding parts
  • the opposite ends of the second bonding part are respectively provided with first grooves
  • the first protruding part is opposite to the first protruding part.
  • One groove matches.
  • the first adhesive layer is non-transparent glue.
  • the first adhesive layer is foam glue.
  • the thickness of the first adhesive layer is between 0.5 mm and 1 mm.
  • the width of the first bonding part and the second bonding part is between 4 mm and 10 mm.
  • the effective display area of the display area of the liquid crystal module is greater than 55 inches.
  • the present disclosure also discloses a touch display device, which includes a frame, a module plastic frame, a back panel, and the display screen described in any one of the above, the display screen and the module plastic frame are located on the frame and the back Between the boards, the module plastic frame is located between the display screen and the back board, and the frame is connected to the back board.
  • Foam is arranged between the display screen and the module plastic frame.
  • An accommodating groove is provided on the frame, the display screen is located in the accommodating groove, and the frame abuts against the display screen.
  • a touch PCBA board is arranged on the frame, and the touch PCBA board is located on the display side of the display screen.
  • the frame is provided with a first card slot, and the touch PCBA board is fixed in the first card slot.
  • a filter strip is arranged on the frame, and the filter strip is arranged on the display side of the display screen.
  • the frame is provided with a second clamping slot
  • the back plate is provided with a first clamping portion matching the second clamping slot
  • the back plate passes through the second clamping slot and the first clamping portion Connected to the backplane.
  • the present disclosure also discloses a method of attaching the aforementioned display screen, including:
  • the glass After the glass is recessed toward the liquid crystal module and is in contact with the liquid crystal module, the glass is pressed to bond the surface B of the first adhesive layer and the liquid crystal module.
  • the first bonding layer is arranged in the bonding area.
  • the first bonding layer is bonded on the glass, and then the liquid crystal
  • the module is positioned on the positioning fixture, and then the glass is placed on top of the liquid crystal module.
  • the glass is recessed toward the liquid crystal module under its own gravity. Because the first adhesive layer is thin, the glass is located on the first adhesive layer The area in between is in contact with the liquid crystal module, and there is zero gap between the glass and the liquid crystal module. After the glass and the liquid crystal module are in contact, the air between the glass and the liquid crystal module can be drained to form a hollow state.
  • the first adhesive layer seals the display area of the liquid crystal module to prevent water vapor from entering the display area of the liquid crystal module and prevent water vapor from forming water mist in the display area and affect the display effect of the liquid crystal module.
  • the first adhesive layer is made of non-transparent glue.
  • the non-transparent glue can prevent light leakage from the display and avoid the influence of light leakage on the display effect.
  • the first adhesive layer is foam glue.
  • the foam glue makes the bonding between the glass and the liquid crystal module stronger. At the same time, the price of the foam glue is lower, and the glass and the liquid crystal module are semi-adhesive. The use of cotton glue is small, which can greatly reduce the cost of the display.
  • the thickness of the first adhesive layer is thin, the display and writing effects of the touch display device will not be affected by the first adhesive layer, and the user experience of the touch display device is better.
  • the touch PCBA board on the frame is used to sense the touch that occurs on the display screen.
  • the touch sensing signal on the touch PCBA board is located on the display side of the display screen through the filter light bar, so as to achieve the function of sensing touch.
  • FIG. 1 is a structural cross-sectional view of a touch display device according to a first embodiment of the present disclosure
  • FIG. 2 is a partial cross-sectional view of the touch display device of the first embodiment of the present disclosure
  • FIG. 3 is a cross-sectional view of the first adhesive layer of the first embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for attaching a display screen according to the first embodiment of the present disclosure
  • Frame 110, accommodating slot; 130, first card slot; 140, filter strip; 150, second card slot; 200, module frame; 300, back plate; 310, first card connection part; 400.
  • Display screen 410, glass; 420, liquid crystal module; 430, first adhesive layer; 431, first adhesive part; 432, second adhesive part; 4311, first protruding part; 4321, first One groove; 120, touch PCBA board; 500, foam.
  • this embodiment discloses a touch display device, which includes a frame 100, a module plastic frame 200, a back plate 300, and a display screen 400.
  • the display screen 400 and the module plastic frame 200 are located on the frame 100 and Between the back plate 300, the module plastic frame 200 is located between the display screen 400 and the back plate 300.
  • the display screen 400 of this embodiment includes glass 410 and a liquid crystal module 420.
  • the glass 410 is located on the front side of the liquid crystal module 420.
  • the effective display area of the display area of the liquid crystal module 420 of this embodiment is greater than 55 inches.
  • the module 420 has a corresponding bonding area.
  • the bonding area is located outside the display area of the liquid crystal module 420 and forms a closed pattern surrounding the display area.
  • the bonding area of this embodiment is provided with a first bonding layer 430.
  • An adhesive layer 430 has an A side and a B side.
  • the A side and the B side are opposite sides of the first adhesive layer 430, wherein the A side is bonded to the glass 410, and the B side is bonded to the liquid crystal module 420 Therefore, the first adhesive layer 430 is bonded to the glass 410 and the liquid crystal module 420 to seal the display area of the liquid crystal module 420;
  • the first bonding layer 430 of this embodiment includes two first bonding portions 431 and two second bonding portions 432.
  • the two first bonding portions 431 are opposite to each other, and the two second bonding portions 432 are also opposite to each other.
  • the two first bonding parts 431 and the two second bonding parts 432 are connected end to end in turn, wherein the two first bonding parts 431 are respectively provided with first protruding parts 4311 at opposite ends
  • the protruding portion 4311 and the first bonding portion 431 are integrally formed.
  • the opposite ends of the two second bonding portions 432 are respectively provided with a first groove 4321, and the first groove 4321 matches the first protruding portion 4311 ,
  • the first bonding part 431 is connected to the second bonding part 432 through the first protrusion 4311 and the first groove 4321;
  • the two first bonding portions 431 of this embodiment are respectively located on the upper and lower sides of the display area of the liquid crystal module 420, and the two second bonding portions 432 are respectively located on the left side of the display area of the liquid crystal module 420 And the right side; it is also possible to place the two first bonding portions 431 on the left and right sides of the display area of the liquid crystal module 420, and the two second bonding portions 432 on the display area of the liquid crystal module 420, respectively Side and lower side; the first bonding portion 431 and the second bonding portion 432 of this embodiment can also be arranged in the same structure, that is, one end of the two first bonding portions 431 and the two second bonding portions 432 respectively A first protruding portion 4311 is provided, and the other ends of the two first bonding portions 431 and the two second bonding portions 432 are respectively provided with a first groove 4321;
  • the first adhesive layer 430 in this embodiment is non-transparent glue, which can be non-woven fabric glue, foam glue, fiber glue, cloth tape, butyl rubber tape, etc.
  • the first adhesive in this embodiment The layer 430 is preferably foam glue;
  • the thickness of the foam glue of this embodiment is between 0.5 mm and 1 mm, preferably 0.5 mm, and the width of the foam glue is between 4 mm and 10 mm.
  • the first adhesive layer 430 of this embodiment is bonded to the glass 410 Afterwards, there is a gap between the edge of the foam glue and the edge of the side of the glass 410 corresponding to it, and the width of the gap is not limited;
  • the foam tape in this embodiment is PE foam double-sided tape, EVA foam double-sided tape, PU foam double-sided tape, etc.;
  • the frame 100 of this embodiment is provided with a receiving slot 110, the glass 410 of the display screen 400 is located in the receiving slot 110, and the frame 100 abuts the glass 410, and the frame 100 is also provided with a touch PCBA board 120, which touches the PCBA board.
  • 120 is located on the display side of the display screen 400, the frame 100 is provided with a first card slot 130, the touch PCBA board 120 is fixed in the first card slot 130, and a filter bar 140 is also provided on the frame 100.
  • the filter bar 140 is located On the display side of the display screen 400, the touch PCBA board 120 is provided with a sensing element. The sensing signal of the sensing element is located on the display side of the display screen 400 after the filter part 140.
  • the sensing element is an inductive emitting element
  • the sensing elements on the two frames 100 are inductive receiving elements
  • the inductive emitting elements correspond to the inductive receiving elements
  • the frame 100 is provided with a second card slot 150
  • the backplane 300 is provided with The first clamping portion 310 that matches the second slot 150
  • the backplane 300 is connected to the backplane 300 through the second clamping slot 150 and the first clamping portion 310;
  • the side of the glass 410 that faces the audience and displays images, animations, etc. is the "display side";
  • the PCBA board refers to the circuit board after the plug-in is assembled;
  • the module plastic frame 200 of this embodiment is located between the liquid crystal module 420 and the back plate 300, and a foam 500 is arranged between the liquid crystal module 420 and the module plastic frame 200.
  • the two sides of the foam 500 are respectively connected to the liquid crystal module.
  • Group 420 is in contact with the module frame 200;
  • this embodiment also discloses a method for attaching the display screen 400, including:
  • the air between the glass 410 and the liquid crystal module 420 is evacuated, and the glass 410 and the liquid crystal module 420 form a hollow state, and the atmospheric pressure is stronger than the glass 410 and the liquid crystal module. Pressure between 420;
  • the first bonding layer 430 is arranged in the bonding area.
  • the first adhesive is first bonded to the glass 410.
  • the liquid crystal module 420 is positioned on the positioning jig, and then the glass 410 is placed above the liquid crystal module 420.
  • the glass 410 is recessed toward the liquid crystal module 420 under its own gravity.
  • the layer 430 is relatively thin. The area on the glass 410 between the first adhesive layer 430 is in contact with the liquid crystal module 420, and there is a zero gap between the glass 410 and the liquid crystal module 420.
  • the glass 410 can be contacted with the liquid crystal module 420.
  • the air between the glass 410 and the liquid crystal module 420 is evacuated to form a hollow state. After the air is evacuated, the glass 410 is pressed to bond the glass 410 and the liquid crystal module 420.
  • the pressure between the glass 410 and the liquid crystal module 420 is less than The atmospheric pressure is strong. Due to the atmospheric pressure, there will be no relative displacement between the glass 410 and the liquid crystal module 420, which can prevent the liquid crystal module 420 from abrading or breaking the screen.
  • the first adhesive layer 430 protects the display area of the liquid crystal module 420. Achieve sealing to prevent water vapor from entering the display area of the liquid crystal module 420, and prevent water vapor from forming water mist in the display area, which affects the display effect of the liquid crystal module 420;
  • first bonding portion 431 and second bonding portion 432 are bonded to the glass 410 and the liquid crystal module 420, the display area of the liquid crystal module 420 can be sealed, and the first bonding portion 431 And the structure of the second bonding part 432 is simple and convenient to use;
  • the first adhesive layer 430 is made of non-transparent glue.
  • the non-transparent glue can prevent light leakage of the display screen 400 and prevent the light leakage from affecting the display effect;
  • the first adhesive layer 430 is made of foam glue.
  • the foam glue makes the glass 410 and the liquid crystal module 420 bond more firmly. At the same time, the price of the foam glue is lower. Semi-adhesive, less foam glue usage, which can greatly reduce the cost of the display screen 400;
  • the thickness of the first adhesive layer 430 is thin, the display and writing effects of the touch display device will not be affected by the first adhesive layer 430, and the user experience of the touch display device is better;
  • the touch PCBA board 120 on the frame 100 is used to sense the touch on the display screen 400.
  • the touch sensing signal on the touch PCBA board 120 is located on the display side of the display screen 400 through the filter bar 140, so as to achieve the function of sensing touch.
  • glass refers to the cover glass of the screen.
  • organic glass is used, and in some scenarios, “inorganic glass” or other non-glass transparent materials are used.
  • glass is specific It refers to a material that has a certain degree of light transmission and is suitable for use as a screen protection layer. Similar materials are a kind of "glass” in this embodiment regardless of whether they are chemically glass or not.
  • a kind of "glass” is composed of an inorganic glass substrate and a frosted coating surface, and it still belongs to the "glass” in this embodiment.
  • the "corresponding bonding area” in the above embodiment means that there is a bonding profile on the glass, and there must be a bonding profile corresponding to it on the liquid crystal module, regardless of whether a bonding profile and b bonding profile are Exactly the same.
  • the cross-sectional view of the first adhesive layer is a trapezoid.
  • the bonding area on the glass and the liquid crystal module is not equal, but the bonding area on the glass and the liquid crystal module still belongs to the “corresponding” in this embodiment. ".
  • the "display area” refers to the part of the liquid crystal module designed to emit light, and the “display area” is the “non-display area”, and the “display area” receives electroluminescence.
  • the first bonding layer has A side and B side
  • the first bonding layer is in an amorphous state when it is not solidified, for example, it is a liquid or semi-solid gel material Therefore, there is no definite A side and B side.
  • the A side and the B side refer to the A side and the B side after the solidification state.
  • the “closed figure” in the above embodiment refers to a substantially closed or closed area. Based on the above, in order to prevent broken screens, it is necessary to make the bonded area a closed figure, but the appearance of a small non-closed pattern in some areas does not affect In actual use, "closed graphics” also refers to graphics that tend to close or are close to closed. Due to the randomness of the experiment, only the width of the non-closed part is 2mm as an example. At this time, the effect of the anti-shatter screen is not affected.
  • the touch display device also includes a frame 100, a modular plastic frame 200, a back plate 300, and a display screen 400.
  • the frame 100, the modular plastic frame 200, the back plate 300, and the display screen 400 in this embodiment are the same as those in the first embodiment.
  • the first adhesive layer 430 between the glass 410 of the display screen 400 and the liquid crystal module 420 of this embodiment includes a first adhesive part 431 and a second adhesive part 432, the first adhesive part 431 and the second adhesive part 432
  • the bonding portions 432 are connected end to end to form a closed pattern, wherein the two ends of the first bonding portion 431 are respectively provided with first protruding portions 4311, and the two ends of the second bonding portion 432 are respectively provided with first grooves 4321,
  • the first groove 4321 matches the first bonding portion 431, and the first bonding portion 431 is connected to the second bonding portion 432 through the first protrusion 4311 and the first groove 4321; or the first bonding portion 431
  • One end is provided with a first protrusion 4311, the other end is provided with a first groove 4321, one end of the second bonding part 432 is provided with a first protrusion 4311, and the other end is provided with a first groove 4321,
  • FIGS. 1 to 3 This embodiment has no drawings, and the following description will be made with reference to FIGS. 1 to 3:
  • the touch display device of this embodiment also includes a frame 100, a modular plastic frame 200, a back plate 300, and a display screen 400.
  • the frame 100, modular plastic frame 200, The backplane 300 and the display screen 400 are the same as the first embodiment, and the difference from the first embodiment is:
  • the first adhesive layer 430 between the glass 410 of the display screen 400 and the liquid crystal module 420 of this embodiment has a first side, a second side, a third side, and a fourth side.
  • the first side, The second side, the third side and the fourth side are connected end to end in turn, and the first side, the second side, the third side and the fourth side are integrally formed, the first side and the second side
  • the third side is opposite to the fourth side
  • the first side and the second side are perpendicular to the third side and the fourth side, the first side, the second side, the third side and
  • the connecting part of the fourth side can be provided with an arc-shaped smooth transition.

Abstract

本公开公开了一种触摸显示设备、显示屏及其贴合方法，显示屏包括玻璃及液晶模组，其中，玻璃与液晶模组具有相应的粘结区域，粘结区域形成于液晶模组的显示区域以外，并构成环绕显示区域的闭合图形；粘结区域内设有第一粘结层，第一粘结层具有A面及B面，第一粘结层的A面与玻璃相粘结，B面与液晶模组相粘结,该显示屏的液晶模组与玻璃之间可实现零间隙，且可避免玻璃与液晶模组之间产生水雾，同时可避免液晶模组被撞击。

Description

触摸显示设备、显示屏及其贴合方法
本公开以2019年2月19日递交的、申请号为201910124899.0且名称为“触摸显示设备、显示屏及其贴合方法”的专利文件为优先权文件，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及显示设备领域，更具体的说，是一种触摸显示设备、显示屏及其贴合方法。
背景技术
LCM(LCD Module)即LCD显示模组、液晶模块，是指将液晶显示器件,连接件，控制与驱动等外围电路，PCB电路板，背光源,结构件等装配在一起的组件，LCM因厚度较薄、无眩光、不会引起眼睛疲劳、易于色彩化及无电磁辐射等优点广泛应用于触摸显示设备及计算机领域。
发明内容
本公开的目的在于提供一种大尺寸的触摸显示设备、显示屏及其贴合方法，该显示屏的液晶模组与玻璃之间可实现零间隙，且可避免玻璃与液晶模组之间产生水雾，同时可避免液晶模组被撞击。
其技术方案如下：
本公开公开一种显示屏，包括玻璃及液晶模组，其中，
所述玻璃与所述液晶模组具有相应的粘结区域，所述粘结区域形成于所述液晶模组的显示区域以外，并构成环绕所述显示区域的闭合图形；
所述粘结区域内设有第一粘结层，所述第一粘结层具有A面及B面，所述第一粘结层的A面与所述玻璃相粘结，所述第一粘结层的B面与所述液晶模组相粘结。
所述第一粘结层至少包括第一粘结部及第二粘结部，所述第一粘结部与所述第二粘结部相连。
所述第一粘结层包括两个第一粘结部及两个第二粘结部，两个所述第一粘结部分别与两个所述第二粘结部相连。
两个所述第一粘结部相对设置，两个所述第二粘结部相对设置。
所述第一粘结部相对的两端分别设有第一凸出部，所述第二粘结部相对的两端分别设有第一凹槽，所述第一凸出部与所述第一凹槽相匹配。
所述第一粘结层为非透明胶。
所述第一粘结层为泡棉胶。
所述第一粘结层的厚度在0.5mm至1mm之间。
所述第一粘结部及所述第二粘结部的宽度在4mm至10mm之间。
所述液晶模组的显示区域的有效显示面积大于55吋。
本公开还公开一种触摸显示设备，包括边框、模组胶框、背板及上述任一项所述的显示屏，所述显示屏及所述模组胶框位于所述边框及所述背板之间，所述模组胶框位于所述显示屏与所述背板之间，所述边框与所述背板相连接。
所述显示屏与所述模组胶框之间设有泡棉。
所述边框上设有容置槽，所述显示屏位于所述容置槽内，且所述边框与所述显示屏相抵接。
所述边框上设有触摸PCBA板，所述触摸PCBA板位于所述显示屏的显示侧。
所述边框上设有第一卡槽，所述触摸PCBA板固定于所述第一卡槽内。
所述边框上设有滤光条，所述滤光条设于所述显示屏的显示侧。
所述边框上设有第二卡槽，所述背板上设有与第二卡槽匹配的第一卡接部，所述背板通过所述第二卡槽及所述第一卡接部与所述背板相连。
本公开还公开了上述所述显示屏的贴合方法，包括：
在玻璃四周边缘粘结第一粘结层，使所述第一粘结层的A面与所述玻璃相粘结；
将液晶模组定位在定位治具上；
把所述玻璃定位在所述定位治具上，并位于所述液晶模组的上方；
所述玻璃向所述液晶模组凹陷并与所述液晶模组接触后，按压所述玻璃使所述第一粘结层的B面与所述液晶模组相粘结。
需要说明的是：
前述“第一、第二、第三…”仅仅是用于对于名称的区分，不代表具体的数量及顺序；
下面对本公开的优点或原理进行说明：
1、玻璃与液晶模组之间具有粘结区域，粘结区域内设有第一粘结层，玻璃与液晶模组安装时，先通过在玻璃上粘结第一粘结层，然后将液晶模组定位在定位治具上，然后将玻璃放置于液晶模组的上方，玻璃在自身重力的作用下向液晶模组凹陷，由于第一粘结层较薄，玻璃上位于第一粘结层之间的区域与液晶模组相接触，玻璃与液晶模组之间实现零间隙，玻璃与液晶模组接触后可排空玻璃与液晶模组之间的空气，形成中空状态，空气排空后按压玻璃， 将玻璃与液晶模组相粘结，玻璃与液晶模组之间的压强小于大气压强，由于大气压的作用，玻璃与液晶模组之间不会产生相对位移，可避免液晶模组磨伤或破屏，同时第一粘结层将液晶模组的显示区域实现密封，避免水蒸气进入液晶模组的显示区域，避免水蒸气在显示区域形成水雾，影响液晶模组的显示效果。
2、相连的第一粘结部及第二粘结部在与玻璃及液晶模组相粘结后，可实现液晶模组显示区域的密封状态，且第一粘结部及第二粘结部的结构简单，使用较为方便。
3、第一粘结层为非透明胶，非透明胶可防止显示屏出现漏光，避免因漏光影响显示效果。
4、第一粘结层为泡棉胶，泡棉胶使玻璃与液晶模组之间粘结较为牢固，同时泡棉胶价格较低，且玻璃与液晶模组之间为半贴合，泡棉胶使用量少，可大大较低显示屏的成本。
5、第一粘结层的厚度较薄，触摸显示设备的显示及书写效果不会因第一粘结层受到影响，触摸显示设备的用户体验较好。
6、显示屏与模组胶框之间设有泡棉，在触摸显示设备发生撞击时，泡棉对液晶模组具有一定的缓冲作用，同时可防止模组胶框对液晶模组造成损伤。
7、边框上的触摸PCBA板用于感应显示屏上发生的触摸，触摸PCBA板上的触摸感应信号经过滤光条位于显示屏的显示侧，从而达到感应触摸的功能。
附图说明
图1是本公开第一实施例的触摸显示设备的结构剖视图；
图2是本公开第一实施例的触摸显示设备的局部剖视图；
图3是本公开第一实施例的第一粘结层的剖视图；
图4是本公开第一实施例的显示屏的贴合方法的流程图；
附图标记说明：
100、边框；110、容置槽；130、第一卡槽；140、滤光条；150、第二卡槽；200、模组胶框；300、背板；310、第一卡接部；400、显示屏；410、玻璃；420、液晶模组；430、第一粘结层；431、第一粘结部；432、第二粘结部；4311、第一凸出部；4321、第一凹槽；120、触摸PCBA板；500、泡棉。
具体实施方式
下面对本公开的实施例进行详细说明。
第一实施例：
如图1至图3所示，本实施例公开一种触摸显示设备，包括边框100、模组胶框200、背板300及显示屏400，显示屏400及模组胶框200位于边框100及背板300之间，模组胶框200位于显示屏400与背板300之间，本实施例的边框100为四个，四个边框100分别位于显示屏的上侧、下侧、左侧及右侧；
本实施例的显示屏400包括玻璃410及液晶模组420，玻璃410位于液晶模组420的前侧，本实施例的液晶模组420的显示区域的有效显示面积大于55吋，玻璃410与液晶模组420具有相应的粘结区域，粘结区域位于液晶模组420的显示区域以外，并构成环绕显示区域的闭合图形，本实施例的粘结区域内设有第一粘结层430，第一粘结层430具有A面及B面，A面与B面为第一粘结层430的相反的两侧面，其中，A面与玻璃410相粘结，B面与液晶模组420相粘结，第一粘结层430与玻璃410及液晶模组420粘结后将液晶模组420的显示区域密封；
本实施例的第一粘结层430包括两个第一粘结部431及两个第二粘结部432，两个第一粘结部431相对设置，两个第二粘结部432也相对设置，两个第一粘结部431及两个第二粘结部432依次首尾相连，其中，两个第一粘结部431上相对的两端分别设有第一凸出部4311，第一凸出部4311与第一粘结部431一体成型，两个第二粘结部432的相对的两端分别设有第一凹槽4321，第一凹槽4321与第一凸出部4311相匹配，第一粘结部431通过第一凸出部4311及第一凹槽4321与第二粘结部432相连；
其中，本实施例的两个第一粘结部431分别位于液晶模组420的显示区域的上侧及下侧，两个第二粘结部432分别位于液晶模组420的显示区域的左侧及右侧；也可将两个第一粘结部431分别位于液晶模组420的显示区域的左侧及右侧，两个第二粘结部432分别位于液晶模组420的显示区域的上侧及下侧；本实施例的第一粘结部431及第二粘结部432也可设置成相同结构，即两个第一粘结部431及两个第二粘结部432的一端分别设有第一凸出部4311，两个第一粘结部431及两个第二粘结部432的另一端分别设有第一凹槽4321；
本实施例的第一粘结层430为非透明胶，非透明胶可以为无纺布胶、泡棉胶、纤维胶、布基胶带、异丁橡胶胶带等，本实施例的第一粘结层430优选的为泡棉胶；
本实施例的泡棉胶的厚度在0.5mm至1mm之间，优选的为0.5mm，泡棉胶的宽度在4mm至10mm之间，本实施例的第一粘结层430与玻璃410粘结后，泡棉胶的边缘至与其相对应的玻璃410侧边的边缘之间设有间隙，该间隙的宽度不做限定；
本实施例的泡棉胶为PE泡棉双面胶、EVA泡棉双面胶、PU泡棉双面胶等；
本实施例的边框100上设有容置槽110，显示屏400的玻璃410位于容置槽110内，且边框100与玻璃410相抵接，边框100上还设有触摸PCBA板120，触摸PCBA板120位于显示屏400的显示侧，边框100上设有第一卡槽130，触摸PCBA板120固定于第一卡槽130内，边框100上还设有滤光条140，滤光条140设于显示屏400的显示侧，触摸PCBA板120上设有感应元件，感应元件的感应信号经过滤光部140后位于显示屏400的显示侧，本实施例的四个边框100其中两个边框100上的感应元件为感应发射元件，两个边框100上的感应 元件为感应接收元件，且感应发射元件与感应接收元件相对应，边框100上设有第二卡槽150，背板300上设有与第二卡槽150匹配的第一卡接部310，背板300通过第二卡槽150及第一卡接部310与背板300相连；
本实施例中，玻璃410上朝向观众并显示图像、动画等的一侧为“显示侧”；PCBA板指插件组装后的线路板；
本实施例的模组胶框200位于液晶模组420与背板300之间，且液晶模组420与模组胶框200之间设有泡棉500，泡棉500的两侧面分别与液晶模组420及模组胶框200相接触；
如图4所示，本实施例还公开了显示屏400的贴合方法，包括：
S10:在玻璃410四周边缘粘结第一粘结层430，使第一粘结层430的A面与玻璃410相粘结；
S20:将液晶模组420定位在定位治具上；
S30:把玻璃410定位在定位治具上，并位于液晶模组420的上方；
S40:玻璃410向液晶模组420凹陷并与液晶模组420接触后，按压玻璃410使第一粘结层430的B面与液晶模组420相粘结；
本实施例的玻璃410向液晶模组420凹陷后玻璃410与液晶模组420之间的空气被排空，玻璃410与液晶模组420之间形成中空状态，大气压强大于玻璃410与液晶模组420之间的压强；
下面对本实施例的优点或原理进行说明：
1、玻璃410与液晶模组420之间具有粘结区域，粘结区域内设有第一粘结层430，玻璃410与液晶模组420安装时，先通过在玻璃410上粘结第一粘结层430，然后将液晶模组420定位在定位治具上，然后将玻璃410放置于液晶模组420的上方，玻璃410在自身重力的作用下向液晶模组420凹陷，由于第一粘结层430较薄，玻璃410上位于第一粘结层430之间的区域与液晶模组420相接触，玻璃410与液晶模组420之间实现零间隙，玻璃410与液晶模组420接触后可排空玻璃410与液晶模组420之间的空气，形成中空状态，空气排空后按压玻璃410，将玻璃410与液晶模组420相粘结，玻璃410与液晶模组420之间的压强小于大气压强，由于大气压的作用，玻璃410与液晶模组420之间不会产生相对位移，可避免液晶模组420磨伤或破屏，同时第一粘结层430将液晶模组420的显示区域实现密封，避免水蒸气进入液晶模组420的显示区域，避免水蒸气在显示区域形成水雾，影响液晶模组420的显示效果；
2、相连的第一粘结部431及第二粘结部432在与玻璃410及液晶模组420相粘结后，可实现液晶模组420显示区域的密封状态，且第一粘结部431及第二粘结部432的结构简单，使用较为方便；
3、第一粘结层430为非透明胶，非透明胶可防止显示屏400出现漏光，避免因漏光影响显示效果；
4、第一粘结层430为泡棉胶，泡棉胶使玻璃410与液晶模组420之间粘结较为牢固，同时泡棉胶价格较低，且玻璃410与液晶模组420之间为半贴合，泡棉胶使用量少，可大大较低显示屏400的成本；
5、第一粘结层430的厚度较薄，触摸显示设备的显示及书写效果不会因第一粘结层430受到影响，触摸显示设备的用户体验较好；
6、显示屏400与模组胶框200之间设有泡棉500，在触摸显示设备发生撞击时，泡棉500对液晶模组420具有一定的缓冲作用，同时可防止模组胶框200对液晶模组420造成损伤；
7、边框100上的触摸PCBA板120用于感应显示屏400上发生的触摸，触摸PCBA板120上的触摸感应信号经过滤光条140位于显示屏400的显示侧，从而达到感应触摸的功能。
以上实施例中，“玻璃”指屏幕的盖板玻璃，在一些场景下选用“有机玻璃”，一些场景下选用“无机玻璃”或其他非玻璃透明材料，但需要说明的是，“玻璃”具体是指具有一定透光性，适用于作为屏幕保护层的材料。类似的材料无论化学性质上是否属于玻璃，均是本实施例中“玻璃”的一种。例如：一种“玻璃”包含无机玻璃基底，以及磨砂涂层表面复合而成，其仍然属于本实施例所称的“玻璃”。
以上实施例中“相应的粘结区域”指在玻璃上存在a粘结轮廓，在液晶模组上则一定存在一个粘结轮廓与之相对应，而不论a粘结轮廓和b粘结轮廓是否完全相同。例如：第一粘结层的剖面图为一梯形，显然玻璃和液晶模组上粘结区域是不等的，但玻璃和液晶模组上的粘结区域仍然属于本实施例所称的“相应”。
以上实施例中“显示区域”是指液晶模组设计为能够出光的部分，与“显示区域”相对的是“非显示区域”，“显示区域”受电致发光。
以上实施例中“第一粘结层具有A面和B面”，在一些实施方式中，第一粘结层在未凝固时呈非定形状态，例如是呈液体或半固体的凝胶类材料，因此不具有确定A面和B面，对于这类未凝固时呈非定形的粘结材料来说，A面和B面是指其凝固状态以后的A面和B面。
以上实施例中“闭合图形”是指实质闭合，或者是区域闭合，基于上述，为了防止碎屏，需要使所述粘结区域为闭合图形，但某些区域出现微小的非闭合图样并不影响实际使用，因此“闭合图形”也指趋于闭合或者是接近闭合的图形。因试验存在一定的随机性，仅以非闭合部分的宽度为2mm为例进行说明，此时对防碎屏效果的影响不大。
上述实施例示例性的展示了本公开的技术构思，但并不局限于此，请参照图1至图3进行说明，在另外的实施例中：
触摸显示设备也包括边框100、模组胶框200、背板300及显示屏400，本实施例的边框100、模组胶框200、背板300及显示屏400均与第一实施例相同。
本实施例的显示屏400的玻璃410与液晶模组420之间的第一粘结层430包括一个第一粘结部431及一个第二粘结部432，第一粘结部431与第二粘结部432首尾依次相连组成闭合图形，其中，第一粘结部431的两端分别设有第一凸出部4311，第二粘结部432的两端分别设有第一凹槽4321，第一凹槽4321与第一粘结部431相匹配，第一粘结部431通过第一凸出部4311及第一凹槽4321与第二粘结部432相连；或第一粘结部431的一端设有第一凸出部4311，另一端设有第一凹槽4321，第二粘结部432的一端设有第一凸出部4311，另一端设有第一凹槽4321，第一粘结部431的第一凸出部4311位于第二粘结部432的第一凹槽4321内，第二粘结部432的第一凸出部4311位于第一粘结部431的第一凹槽4321内；
第三实施例：
本实施例未附图，下面参照图1至图3进行说明：
本实施例也公开一种触摸显示设备，本实施例的触摸显示设备也包括边框100、模组胶框200、背板300及显示屏400，本实施例的边框100、模组胶框200、背板300及显示屏400均与第一实施例相同，与第一实施例不同的是：
本实施例的显示屏400的玻璃410与液晶模组420之间的第一粘结层430具有第一侧边、第二侧边、第三侧边、第四侧边，第一侧边、第二侧边、第三侧边及第四侧边依次首尾相连，且第一侧边、第二侧边、第三侧边及第四侧边一体成型，第一侧边与第二侧边相对，第三侧边与第四侧边相对，第一侧边及第二侧边与第三侧边及第四侧边垂直设置，第一侧边、第二侧边、第三侧边及第四侧边的连接部可设置弧形圆滑过渡。
以上仅为本公开的具体实施例，并不以此限定本公开的保护范围；在不违反本公开构思的基础上所作的任何替换与改进，均属本公开的保护范围。

Claims (18)

  1. 显示屏，其特征在于，包括玻璃及液晶模组，其中，
    所述玻璃与所述液晶模组具有相应的粘结区域，所述粘结区域形成于所述液晶模组的显示区域以外，并构成环绕所述显示区域的闭合图形；
    所述粘结区域内设有第一粘结层，所述第一粘结层具有A面及B面，所述第一粘结层的A面与所述玻璃相粘结，所述第一粘结层的B面与所述液晶模组相粘结。
  2. 如权利要求1所述显示屏，其特征在于，所述第一粘结层至少包括第一粘结部及第二粘结部，所述第一粘结部与所述第二粘结部相连。
  3. 如权利要求1所述显示屏，其特征在于，所述第一粘结层包括两个第一粘结部及两个第二粘结部，两个所述第一粘结部分别与两个所述第二粘结部相连。
  4. 如权利要求3所述显示屏，其特征在于，两个所述第一粘结部相对设置，两个所述第二粘结部相对设置。
  5. 如权利要求3所述显示屏，其特征在于，所述第一粘结部相对的两端分别设有第一凸出部，所述第二粘结部相对的两端分别设有第一凹槽，所述第一凸出部与所述第一凹槽相匹配。
  6. 如权利要求1所述显示屏，其特征在于，所述第一粘结层为非透明胶。
  7. 如权利要求1所述显示屏，其特征在于，所述第一粘结层为泡棉胶。
  8. 如权利要求1至7任一项所述显示屏，其特征在于，所述第一粘结层的厚度在0.5mm至1mm之间。
  9. 如权利要求3所述显示屏，其特征在于，所述第一粘结部及所述第二粘结部的宽度在4mm至10mm。
  10. 如权利要求1至7任一项所述显示屏，其特征在于，所述液晶模组的显示区域的有效显示面积大于55吋。
  11. 触摸显示设备，其特征在于，包括边框、模组胶框、背板及权利要求1至10中任一项所述的显示屏，所述显示屏及所述模组胶框位于所述边框及所述背板之间，所述模组胶框位于所述显示屏与所述背板之间，所述边框与所述背板相连接。
  12. 如权利要求11所述触摸显示设备，其特征在于，所述显示屏与所述模组胶框之间设有泡棉。
  13. 如权利要求11所述触摸显示设备，其特征在于，所述边框上设有容置槽，所述显示屏位于所述容置槽内，且所述边框与所述显示屏相抵接。
  14. 如权利要求11所述触摸显示设备，其特征在于，所述边框上设有触摸PCBA板，所述触摸PCBA板位于所述显示屏的显示侧。
  15. 如权利要求14所述触摸显示设备，其特征在于，所述边框上设有第一卡槽，所述触摸PCBA板固定于所述第一卡槽内。
  16. 如权利要求11所述触摸显示设备，其特征在于，所述边框上设有滤光条，所述滤光条设于所述显示屏的显示侧。
  17. 如权利要求11所述触摸显示设备，其特征在于，所述边框上设有第二卡槽，所述背板上设有与第二卡槽匹配的第一卡接部，所述背板通过所述第二卡槽及所述第一卡接部与所述背板相连。
  18. 如权利要求1至10任一项所述显示屏的贴合方法，其特征在于，包括：
    在玻璃四周边缘粘结第一粘结层，使所述第一粘结层的A面与所述玻璃相粘结；
    将液晶模组定位在定位治具上；
    把所述玻璃定位在所述定位治具上，并位于所述液晶模组的上方；
    所述玻璃向所述液晶模组凹陷并与所述液晶模组接触后，按压所述玻璃使所述第一粘结层的B面与所述液晶模组相粘结。
PCT/CN2019/127163 2019-02-19 2019-12-20 触摸显示设备、显示屏及其贴合方法 WO2020168811A1 (zh)

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