WO2022088451A1 - Appareil d'affichage - Google Patents

Appareil d'affichage Download PDF

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Publication number
WO2022088451A1
WO2022088451A1 PCT/CN2020/138547 CN2020138547W WO2022088451A1 WO 2022088451 A1 WO2022088451 A1 WO 2022088451A1 CN 2020138547 W CN2020138547 W CN 2020138547W WO 2022088451 A1 WO2022088451 A1 WO 2022088451A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
touch screen
frame
display device
optical film
Prior art date
Application number
PCT/CN2020/138547
Other languages
English (en)
Chinese (zh)
Inventor
刘天保
侯旻翔
邬营杰
Original Assignee
广州视睿电子科技有限公司
广州视源电子科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州视睿电子科技有限公司, 广州视源电子科技股份有限公司 filed Critical 广州视睿电子科技有限公司
Publication of WO2022088451A1 publication Critical patent/WO2022088451A1/fr

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Classifications

    • 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
    • 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
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields

Definitions

  • the present application relates to the technical field of liquid crystal display, and in particular, to a display device.
  • connection method of the frame sticker has the advantages of simple structure and low cost, but the distance between the touch screen and the display panel is large, and the display effect of the whole machine is relatively poor due to the reflection and refraction of light.
  • the fully-fitted connection method can significantly improve the display effect, but the process cost is high.
  • the present application provides a display device, which can effectively reduce the distance between the touch screen and the display panel, and at the same time, can avoid the electromagnetic interference of the display panel to the touch screen, and the display effect is good.
  • the present application provides a display device, comprising a display panel, a peripheral frame assembly connected to the display panel, a touch screen disposed at intervals from the display panel, and a connection clamped between the touch screen and the display panel
  • the connecting piece includes a double-sided adhesive layer, the side of the double-sided adhesive layer close to the touch screen is adhered with an insulating reinforcing layer, and the side of the double-sided adhesive layer close to the display panel is adhered
  • a conductive sheet is connected, and the side is bonded with the display panel and the frame assembly at the same time, and the display panel is grounded through the conductive sheet and the frame assembly.
  • the connecting piece is clamped between the touch screen and the display panel, and the connecting piece includes a double-sided adhesive layer, an insulating reinforcing layer and a conductive sheet arranged on both sides of the connecting piece, which effectively reduces the distance between the touch screen and the display panel.
  • the grounding is realized through the conductive sheet and the frame assembly, which avoids the electromagnetic interference of the display panel to the touch screen, and effectively improves the touch and display effect.
  • the double-sided adhesive layer is a double-sided tape.
  • the double-sided adhesive has strong adhesive force, ensuring effective connection with the display panel and the frame assembly, and the thickness of the double-sided adhesive is thin, which effectively reduces the distance between the touch screen and the display panel.
  • the insulating reinforcement layer is made of plastic material.
  • the insulating reinforcing layer plays an insulating role, and is also used to strengthen the strength and rigidity of the entire connecting piece, reduce the deformation of the connecting piece, and improve the control accuracy of the distance between the touch screen and the display panel.
  • the conductive sheet is a metal sheet.
  • the conductive sheet can be copper foil or aluminum foil or the like.
  • the conductive sheet is in contact with a conductive element on the display panel to form an electrical connection.
  • the display panel is rectangular, and at least two opposite sides of one side of the display panel close to the touch screen are provided with the connecting pieces; or,
  • the connecting members are provided on four sides of one side of the display panel close to the touch screen. Ensure the connection area between the display panel and the touch screen, thereby ensuring the precise control of the distance between the two. At the same time, the overall force of the display panel and the touch screen is uniform, reducing the deformation of the display panel and the touch screen, and ensuring the display panel and the touch screen. Flatness, improve the display effect.
  • the connecting member is in the shape of a strip, and the connecting member extends along the length direction of the corresponding side of the display panel. Ensure the effective contact area between the connector and the display panel and touch screen.
  • the thickness of the connecting member is not greater than 0.8 mm. It can effectively reduce the distance between the display panel and the touch screen.
  • the display device also includes a backlight module
  • the backlight module includes an optical film arranged at intervals on a side of the display panel away from the touch screen, and the frame assembly presses the optical film A film
  • the frame assembly is provided with a buffer layer corresponding to the display panel and the optical film, and both the display panel and the optical film are in contact with the buffer layer.
  • the buffer layer acts as a buffer and shock absorber for the display panel and the optical film to avoid deformation and damage of the display panel and the optical film caused by external force. deformation.
  • the frame assembly includes a frame and a positioning frame connected to the inner side of the frame, the positioning frame is connected to the circumferential direction of the display panel and presses the optical film,
  • the buffer layer is arranged on the positioning frame. According to whether a buffer layer is provided, the frame assembly adopts a split structure, which is divided into two parts: a frame and a positioning frame, and only the buffer layer is arranged on the positioning frame, which is more convenient for processing.
  • the positioning frame includes a support portion, the support portion supports the display panel and presses the optical film, and the support portion is protruded with the optical film corresponding to the optical film.
  • a first stopper the first stopper is located in the circumferential direction of the optical film, and the buffer layer on the first stopper is spaced from the frame to reserve the The deformation space of the buffer layer.
  • the buffer layer arranged on the first stopper is arranged at intervals from the inner side of the frame to reserve the deformation caused by the thermal expansion of the buffer layer and the first stopper by the optical film, so as to prevent the optical film from being squeezed damage.
  • the display device further includes an adapter disposed between the touch screen and the frame assembly, and the touch screen is detachably connected to the frame assembly through the adapter.
  • the touch screen is detachably connected to the frame assembly through the adapter, which makes the disassembly of the touch screen and the frame more convenient and reliable, which is conducive to the later replacement and maintenance of the touch screen and the frame, and avoids damage to components caused by difficult disassembly operations.
  • a groove is formed on the frame assembly corresponding to the adapter, and the adapter is connected in the groove.
  • the groove pre-positions the installation of the adapter on the frame.
  • the display device further includes a back plate, the back plate is arranged on the side of the display panel away from the touch screen, and the fasteners pass through the back plate and the bottom of the groove in sequence.
  • the groove wall is connected with the adapter. Realize the connection of the backplane, the frame and the touch screen.
  • the fasteners can be selected as screws, which are easy to install and reliable to connect.
  • FIG. 1 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present application.
  • FIG. 3 is an exploded view of a partial structure of a display device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a connector provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a frame assembly provided by an embodiment of the present application.
  • Backlight module 51. Optical film; 52. Backplane;
  • connection should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • connection may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the display device includes a display panel 1 and a touch screen 2 arranged at intervals, a frame assembly 3 connected to the circumferential direction of the display panel 1 , and a frame assembly 3 clamped between the touch screen 2 and the display panel 1 .
  • the connector 4 includes a double-sided adhesive layer 41 , an insulating reinforcing layer 42 and a conductive sheet 43 .
  • the insulating reinforcing layer 42 is covered and adhered to one side of the double-sided adhesive layer 41
  • the conductive sheet 43 is adhered to the other side of the double-sided adhesive layer 41 .
  • the side of the double-sided adhesive layer 41 to which the conductive sheet 43 is bonded is simultaneously bonded to the display panel 1 and the frame assembly 3 , so that the display panel 1 is grounded through the conductive sheet 43 and the frame assembly 3 .
  • the touch screen 2 is pressed against the insulating reinforcing layer 42 on the side away from the double-sided adhesive layer 41 .
  • the connecting member 4 is clamped between the touch screen 2 and the display panel 1.
  • the connecting member 4 includes a double-sided adhesive layer 41 and an insulating reinforcing layer 42 and a conductive sheet 43 respectively disposed on both sides of the connecting member 4, thereby effectively reducing the size of the touch screen 2 and the display panel.
  • the display panel 1 is grounded through the conductive sheet 43 and the frame assembly 3, avoiding the electromagnetic interference of the display panel 1 to the touch screen 2 caused by the small distance between the display panel 1 and the touch screen 2, and effectively improving the touch and display. Effect.
  • the distance between the display panel 1 and the touch screen 2 is only controlled by the thickness of the connector 4 itself, and is not affected by the installation tolerance of other positions, so it is easier to control the distance between the display panel 1 and the touch screen 2, and the overall structure is simple, The assembly is convenient, the assembly efficiency and assembly yield are high, and the production cost is low.
  • the double-sided adhesive layer 41 is a double-sided adhesive tape
  • the double-sided adhesive tape includes two oppositely arranged adhesive surfaces, and the insulating reinforcing layer 42 and the conductive sheet 43 are respectively bonded to the two adhesive surfaces.
  • the double-sided adhesive has strong adhesive force, ensuring effective connection with the display panel 1 and the frame assembly 3 , and the thickness of the double-sided adhesive is thin, which effectively reduces the distance between the touch screen 2 and the display panel 1 .
  • the double-sided tape is easy to obtain and easy to use.
  • the insulating reinforcing layer 42 is made of plastic material, such as PET, PVC, PU, PE, PS, PP, ABS, or PMMA.
  • the insulating reinforcing layer 42 not only plays an insulating role, but also strengthens the strength and rigidity of the entire connector 4 , reduces the deformation of the connector 4 , and improves the control accuracy of the distance between the touch screen 2 and the display panel 1 .
  • the conductive sheet 43 is a metal sheet, such as copper foil or aluminum foil.
  • the conductive sheet 43 is in contact with a conductive element of the display panel 1 to form an electrical connection.
  • the frame assembly 3 can be optionally made of conductive materials such as aluminum alloy.
  • the frame assembly 3 is grounded, and the conductive sheet 43 and the frame assembly 3 conduct current to be grounded.
  • the connecting member 4 adopts a three-layer bonding structure of double-sided tape, an insulating reinforcing layer 42 and a conductive sheet 43, and its thickness can be made no greater than 0.8 mm, thereby effectively reducing the distance between the display panel 1 and the touch screen 2. .
  • the display panel 1 is a rectangle, and at least two opposite sides of one side of the display panel 1 close to the touch screen 2 are provided with connecting pieces 4 to ensure the connection area between the display panel 1 and the touch screen 2, thereby ensuring the connection between the two Precise control of the spacing between.
  • the four sides of one side of the display panel 1 close to the touch screen 2 are provided with connecting members 4 to further improve the control accuracy of the distance between the two, and the display panel 1 and the touch screen 2 are integrally affected
  • the force is uniform, the deformation of the display panel 1 and the touch screen 2 is reduced, the flatness of the display panel 1 and the touch screen 2 is ensured, and the display effect is improved.
  • the connecting member 4 can be strip-shaped, and the connecting member 4 extends along the length direction of the corresponding side of the display panel 1 to ensure an effective contact area between the connecting member 4 and the display panel 1 and the touch screen 2 .
  • the connecting member 4 may also be an integral frame shape, and the four sides of the frame-shaped connecting member 4 are arranged in a one-to-one correspondence with the four sides of the display panel 1 .
  • the connecting members 4 may also be block-shaped, and a plurality of connecting members 4 are arranged at intervals along the sides of the display panel 1 .
  • the display panel 1 can also be circular, prismatic, or special-shaped, and the connecting member 4 can also be correspondingly circular, arc-shaped, or strip-shaped.
  • the upper polarizer in the display panel 1 can be selected as a high haze polarizer.
  • the roughness of the high haze polarizer is greater than 3um, which can effectively improve the display effect of the display panel 1 .
  • the display device further includes a backlight module 5 disposed on a side of the display panel 1 away from the touch screen 2 .
  • the backlight module 5 includes an optical film 51 and a back plate 52 arranged in sequence.
  • the optical film 51 is mounted on the backplane 52 , and the frame assembly 3 presses the optical film 51 and is connected to the backplane 52 .
  • the frame assembly 3 is provided with a buffer layer 33 corresponding to the display panel 1 and the optical film 51 , and both the display panel 1 and the optical film 51 are in contact with the buffer layer 33 .
  • the buffer layer 33 By providing the buffer layer 33 , the display panel 1 and the optical film 51 can be buffered and damped to avoid deformation and damage of the display panel 1 and the optical film 51 caused by external force. Meanwhile, the buffer layer 33 can avoid the display panel 1 and the optical film 51 The deformation of the film 51 due to changes in ambient temperature or humidity plays a role in protecting the display panel 1 and the optical film 51 .
  • the buffer layer 33 can be selected from rubber, silicone or foam, which has certain elasticity and strength.
  • the frame assembly 3 includes a frame 31 and a positioning frame 32 connected to the inner side of the frame 31 .
  • the positioning frame 32 is connected to the circumferential direction of the display panel 1 and presses the optical film 51 .
  • the positioning frame 32 is provided with a buffer layer. 33. According to whether the buffer layer 33 is provided, the frame assembly 3 adopts a split structure and is divided into two parts: the frame 31 and the positioning frame 32 , and the buffer layer 33 is only provided on the positioning frame 32 , which is more convenient for processing.
  • the positioning frame 32 is optionally made of plastic material.
  • the buffer layer 33 can be bonded to the positioning frame 32 .
  • the positioning frame 32 includes a support portion 321 for supporting the display panel 1 and pressing the optical film 51 .
  • the upper and lower sides of the support portion 321 are respectively provided with a first stopper portion 322 and a second stopper portion 323 .
  • the first stop portion 322 corresponds to the optical film 51 and is located in the circumferential direction of the optical film 51, so as to realize the installation and positioning of the optical film 51 and the positioning frame 32.
  • the second stopper 323 corresponds to the display panel 1 and is located in the circumferential direction of the display panel 1 , so as to realize the installation and positioning of the display panel 1 and the positioning frame 32 .
  • the inner side of the frame 31 is provided with a card slot 311 , one end of the support portion 321 away from the center of the display panel 1 is inserted into the card slot 311 , and the second stopper 323 is fitted with the inner side of the frame 31 to realize the connection between the positioning frame 32 and the frame 31 . Locate and connect.
  • the upper and lower surfaces of the support portion 321 and the inner and outer sides of the first stopper portion 322 and the second stopper portion 323 are provided with a buffer layer 33 .
  • the inner side of the first stopper portion 322 is the side close to the optical film 51 .
  • the inner side of the second blocking portion 323 is the side close to the display panel 1 .
  • the buffer layer 33 disposed on the outer side of the first stopper 322 is spaced from the inner side of the frame 31 to reserve the buffer layer 33 and the first stopper 322 caused by thermal expansion of the optical film 51 . deformation, to prevent the optical film 51 from being crushed and damaged.
  • the frame 31 includes a mounting surface 312 parallel to the upper surface of the support portion 321 .
  • the side of the double-sided adhesive layer 41 of the connector 4 to which the conductive sheet 43 is bonded is the mounting surface 312 and the side of the display panel 1 close to the touch screen 2 . bonding.
  • An exposed conductive area is provided on the mounting surface 312 of the frame 31 corresponding to the conductive sheet 43 , and the display panel 1 is grounded through the conductive sheet 43 and the exposed conductive area.
  • a third stopper 313 is protruded from the mounting surface 312 on the frame 31 , and the third stopper 313 is located in the circumferential direction of the connector 4 , and is used for connecting the connector 4 on the frame 31 and the display panel 1 . bonding for positioning.
  • the display device further includes an adapter 6 disposed between the touch screen 2 and the frame 31, the adapter 6 is connected to the touch screen 2, and the adapter 6 is detachably connected to the frame 31, so that the touch screen 2 can be detachably connected to the frame 31.
  • the connector 6 is detachably connected to the frame assembly 3, which makes the disassembly of the touch screen 2 and the frame 31 more convenient and reliable, which is conducive to later replacement and maintenance of the touch screen 2 and the frame 31, and avoids component damage caused by difficult disassembly operations.
  • the adapter 6 can be optionally made of plastic or metal.
  • the adapter 6 can be bonded to the touch screen 2 by double-sided tape, without damaging the structural integrity of the touch screen 2 .
  • a groove 314 is defined on the frame 31 corresponding to the adapter 6 , and the adapter 6 is disposed in the groove 314 to pre-position the adapter 6 on the frame 31 .
  • the fasteners 7 pass through the back plate 52 and the bottom groove wall of the groove 314 in sequence and are connected with the adapter 6 to realize the connection of the back plate 52 , the frame 31 and the touch screen 2 .
  • the fastener 7 can be selected as a screw, which is convenient for installation and reliable in connection.
  • a fourth stopper 315 is protruded on one side of the frame 31 close to the backboard 52 , and the fourth stopper 315 is located in the circumferential direction of the backboard 52 for installation and positioning of the backboard 52 and the frame 31 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Appareil d'affichage, comprenant un écran d'affichage (1), un ensemble cadre (3) relié à l'écran d'affichage (1) dans la direction circonférentielle, un écran tactile (2) espacé de l'écran d'affichage (1), et un élément de liaison (4) serré entre l'écran tactile (2) et l'écran d'affichage (1), l'élément de liaison (4) comprenant une couche de liaison double face (41) ; une couche de renforcement isolante (42) étant liée au côté de la couche de liaison double face (41) qui est proche de l'écran tactile (2) ; une feuille conductrice (43) étant liée au côté de la couche de liaison double face (41) qui est proche de l'écran d'affichage (1), et le côté étant collé à la fois à l'écran d'affichage (1) et à l'ensemble cadre (3) ; et l'écran d'affichage (1) étant mis à la terre au moyen de la feuille conductrice (43) et de l'ensemble cadre (3). L'élément de liaison (4) est serré entre l'écran tactile (2) et l'écran d'affichage (1), l'élément de liaison (4) comprend la couche de liaison double face (41), et la couche de renforcement isolante (42) et la feuille conductrice (43), qui sont respectivement agencées sur deux côtés de la couche de liaison double face (41), et par conséquent la distance entre l'écran tactile (2) et l'écran d'affichage (1) est efficacement réduite. De plus, l'écran d'affichage (1) est mis à la terre au moyen de la feuille conductrice (43) et l'ensemble cadre (3), de telle sorte que l'interférence électromagnétique de l'écran d'affichage (1) sur l'écran tactile (2) est empêchée, l'effet d'affichage est efficacement amélioré, la structure globale est simple, et l'efficacité d'assemblage et le rendement d'assemblage sont élevés.
PCT/CN2020/138547 2020-10-30 2020-12-23 Appareil d'affichage WO2022088451A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202022469232.5U CN213582123U (zh) 2020-10-30 2020-10-30 显示装置
CN202022469232.5 2020-10-30

Publications (1)

Publication Number Publication Date
WO2022088451A1 true WO2022088451A1 (fr) 2022-05-05

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ID=76531418

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/138547 WO2022088451A1 (fr) 2020-10-30 2020-12-23 Appareil d'affichage

Country Status (2)

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CN (1) CN213582123U (fr)
WO (1) WO2022088451A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050057527A1 (en) * 2003-09-17 2005-03-17 Sony Corporation Information display device and supporting frame for supporting a piezoelectric element for use in information display device
CN1963613A (zh) * 2005-11-09 2007-05-16 建美电子股份有限公司 液晶显示器
CN207663346U (zh) * 2017-12-22 2018-07-27 江苏特思达电子科技股份有限公司 一种触控显示屏的安装结构及触控显示器
CN208110562U (zh) * 2018-05-17 2018-11-16 信利光电股份有限公司 一种触控显示模组
CN110032286A (zh) * 2018-01-12 2019-07-19 宝宸（厦门）光学科技有限公司 触控显示装置
CN209460526U (zh) * 2019-03-14 2019-10-01 常州高清信息技术有限公司 液晶显示屏

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050057527A1 (en) * 2003-09-17 2005-03-17 Sony Corporation Information display device and supporting frame for supporting a piezoelectric element for use in information display device
CN1963613A (zh) * 2005-11-09 2007-05-16 建美电子股份有限公司 液晶显示器
CN207663346U (zh) * 2017-12-22 2018-07-27 江苏特思达电子科技股份有限公司 一种触控显示屏的安装结构及触控显示器
CN110032286A (zh) * 2018-01-12 2019-07-19 宝宸（厦门）光学科技有限公司 触控显示装置
CN208110562U (zh) * 2018-05-17 2018-11-16 信利光电股份有限公司 一种触控显示模组
CN209460526U (zh) * 2019-03-14 2019-10-01 常州高清信息技术有限公司 液晶显示屏

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