WO2022116658A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
WO2022116658A1
WO2022116658A1 PCT/CN2021/120132 CN2021120132W WO2022116658A1 WO 2022116658 A1 WO2022116658 A1 WO 2022116658A1 CN 2021120132 W CN2021120132 W CN 2021120132W WO 2022116658 A1 WO2022116658 A1 WO 2022116658A1
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WO
WIPO (PCT)
Prior art keywords
backplane
main body
positioning
display device
bracket
Prior art date
Application number
PCT/CN2021/120132
Other languages
English (en)
Chinese (zh)
Inventor
胥志勇
胡小龙
唐志强
林福训
Original Assignee
海信视像科技股份有限公司
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 海信视像科技股份有限公司 filed Critical 海信视像科技股份有限公司
Publication of WO2022116658A1 publication Critical patent/WO2022116658A1/fr

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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
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Definitions

  • the present application relates to the field of display technology, and in particular, to a display device.
  • the display components inside the display device generally include a display module and a backlight module, wherein, according to the different light incident modes of the backlight module, it can be divided into a direct type and an edge type.
  • the direct type backlight module is to make the LED light source into a dense dot matrix and place it behind the screen to directly illuminate the screen, while the side type means to place the LED light source on the side of the screen and guide the light to screen, light up the back of the entire screen.
  • display device products are in high demand for aesthetic appearance and high-quality presentation, and LCD TVs with slim appearance and clear picture quality are increasingly favored by consumers.
  • the direct type display device has its natural advantages in realizing the picture quality effect, due to the natural backlight realization method, the strength and flatness of the backplane are required to be high, especially for medium and high-end products with small mixing distance and large size. .
  • the back plate obtained by the traditional stamping and forming process is affected by the thickness of the back plate, and the strength of the back plate against valgus and torsion is insufficient. Simply increasing the thickness of the back plate will increase the cost of raw materials on the one hand, and increase the stamping forming process on the other hand. Difficulty and mold cost, and it is difficult to ensure the flatness of the backplane.
  • the purpose of the present application is to provide a display device which is convenient for processing and manufacture, and which can effectively ensure the flatness of the backplane.
  • the present application provides a display device, comprising a display panel for display and a backplane disposed on one side of the display panel, the backplane comprising a backplane main body and a frame assembly; the backplane main body It is in the shape of a flat plate; the frame assembly is arranged around the periphery of the backboard main body, and the backboard main body and the frame assembly are assembled into one body.
  • the backplane further includes a bracket; the frame assembly protrudes forward from the backplane main body; the bracket extends along the edge of the frame assembly, and the bracket includes a frame that is attached to and fixed on the frame The connecting part at the front end of the assembly and the engaging part extending forward from the outer side of the connecting part.
  • the display device further includes a ring-shaped middle frame; the middle frame is provided with a card slot with an open rear end, and the card slot is engaged with the engaging portion.
  • the bracket further includes a metal dome, and the metal dome is protruded on the engaging portion; the middle frame is provided with a concave portion on the side peripheral wall of the card slot; the metal dome is elastic Pressed in the recessed portion, the middle frame is restricted from moving forward relative to the bracket.
  • a bracket snap protrusion is protruded on the engaging portion; a snap hole is formed on the metal elastic sheet, and the metal elastic sheet is clamped on the engaging portion from front to back, and the snap hole It is engaged with the bracket snap protrusion to limit the position.
  • a positioning hole is formed on the front surface of the frame assembly; a positioning protrusion protrudes rearward from the connecting portion of the bracket, and the positioning protrusion protrudes into and is limited in the positioning hole.
  • the frame assembly includes a sky-side frame extending along the upper edge and left and right edges of the backplane body and a ground-side frame extending along the lower side edge of the backboard body; the sky-side frame A mounting portion is formed inwardly extending from the inner side of the rear end of the mounting portion; the front surface of the mounting portion is attached to and fixedly connected to the rear surface of the backplane main body; the rear surface of the ground side frame is attached to and fixedly connected to the backplane main body front surface.
  • the sky side frame further includes a bearing part and an extension part; the rear part of the extension part is connected to the outer side of the mounting part, and the outer side surface of the extension part is facing in the direction from the rear to the front.
  • the outer inclined slope, the bearing part is connected to the front part of the extension part; the connection part of the bracket is connected to the bearing part.
  • a first positioning rivet post and a second positioning riveting post are provided on the back plate main body, and threads are provided on the inner circumferences of the first positioning riveting post and the second positioning riveting post; the The first positioning riveting post protrudes backward from the rear surface of the back plate body, and the second positioning riveting post protrudes forwardly from the front surface of the back plate main body; the mounting portion is fixed to the first positioning riveting post; The ground side frame and the second positioning riveting post are fixed.
  • the display device further includes an optical film; a stepped surface is formed on the ground side frame, and the stepped surface is flush with the upper surface of the connecting portion; the stepped surface and the connection A film hanging lug protruding forward is correspondingly arranged on the part for positioning the optical film.
  • the present application provides a display device, the display device includes: a light board, the light board includes a circuit board;
  • the lamp panel, the back panel main body includes two metal layers arranged at intervals and an insulating layer sandwiched between the two metal layers, the back panel main body is also provided with a third positioning rivet post that can conduct electricity, so The third positioning riveting post passes through the two metal layers and is in contact with the two metal layers, and the third positioning riveting post protrudes toward the direction of the lamp board to fix the lamp board.
  • the back plate body is provided with a fourth positioning rivet post, an inner circumference of the fourth positioning rivet post is provided with threads, and the fourth positioning rivet post is embedded in the back plate body ;
  • the rear end of the fourth positioning riveting post protrudes outward along the circumferential direction, and is overlapped on the main body of the back plate.
  • the application at least has the following advantages and positive effects:
  • the backplane includes a backplane main body and a frame assembly assembled together, so that each component of the backplane can be manufactured and processed independently.
  • the structure of a single component is simpler, and each component The manufacturing of the components will not affect each other, thereby facilitating the processing and manufacturing of the backplane, reducing the processing difficulty and cost of the backplane, thereby effectively improving the dimensional accuracy of each component of the backplane.
  • the main body of the back plate is a flat structure, and its structure is simple to process, and because the main body of the back plate is independent of the frame assembly, the processing of the main body of the back plate will not be affected by the frame assembly, which effectively reduces the deformation of the main body of the back plate during processing. It can effectively ensure the flatness of the main surface of the backplane.
  • FIG. 1 is a schematic diagram of an exploded structure of an embodiment of a display device of the present application.
  • FIG. 2 is a partial cross-sectional view of an embodiment of a display device of the present application.
  • FIG. 3 is a schematic diagram of an exploded structure of a backplane of a display device embodiment of the present application.
  • FIG. 4 is a partial cross-sectional view of a back plate of an embodiment of the display device of the present application, and the figure illustrates a schematic view cut from the center of the first positioning rivet post;
  • FIG. 5 is a partial cross-sectional view of a back plate of an embodiment of the display device of the present application, and the figure shows a schematic view cut from the center of the standoff;
  • FIG. 6 is a partial cross-sectional view of another embodiment of the display device of the present application, and the figure illustrates a schematic view cut from the center of the third positioning rivet post;
  • FIG. 7 is a partial cross-sectional view of a backplane of an embodiment of a display device of the present application, and the figure illustrates a schematic view cut from a positioning hole;
  • FIG. 8 is a partial cross-sectional view of a backplane of a display device embodiment of the present application, showing a bracket and a bracket snapping protrusion;
  • FIG. 9 is a partial cross-sectional view of a back panel of an embodiment of a display device of the present application, showing a bracket and a diaphragm hanging lug;
  • FIG. 10 is a cross-sectional view of a middle frame of a display device embodiment of the present application.
  • Backplane 11. Backplane body; 111, Metal layer; 112, Insulation layer; 12, Frame assembly; 121, Sky side frame; 1211, Mounting part; hole; 122, ground side frame; 13, bracket; 131, connecting part; 1311, positioning protrusion; 1312, diaphragm hanging lug; 132, engaging part; 1321, bracket snapping protrusion; 133, metal shrapnel; 14, No. 1. Positioning riveting post; 15. Second positioning riveting post; 16. Nut post; 17. Third positioning riveting post; 18. Fourth positioning riveting post; 2. Lamp board; 3. Optical diaphragm; 4. Middle frame; 41. Card slot; 42. Extension plate; 5. Display panel; 6. Reflective film.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the direct type display device has its natural advantages in realizing the picture quality effect, due to the natural backlight realization method, the strength and flatness of the backplane are required to be high, especially for medium and high-end products with small mixing distance and large size. .
  • the back plate obtained by the traditional stamping and forming process is affected by the thickness of the back plate, and the strength of the back plate against valgus and torsion is insufficient. Simply increasing the thickness of the back plate will increase the cost of raw materials on the one hand, and increase the stamping forming process on the other hand. Difficulty and mold cost, and it is difficult to ensure the flatness of the backplane.
  • FIG. 1 is a schematic diagram of an exploded structure of an embodiment of a display device of the present application.
  • FIG. 2 is a partial cross-sectional view of an embodiment of a display device of the present application.
  • the present embodiment provides a display device, which is a direct light incident method.
  • the display device includes a back panel 1 , a light panel 2 , an optical film 3 , a middle frame 4 and a display panel 5 .
  • the display panel 5 is a liquid crystal display panel, and the display device is a liquid crystal display device.
  • the backplane 1 and the middle frame 4 constitute the support structure of the display device.
  • the display panel 5 is fixed on the middle frame 4
  • the optical film 3 is fixed on the backplane 1 and is located behind the display panel 5
  • the light board 2 is fixed on the backplane 1 .
  • lamp beads are densely covered, and different image information is displayed on the display panel 5 through the light emission of the lamp beads on the lamp plate 2 .
  • the light panels 2 include a plurality of light panels, and the plurality of light panels are spliced together and used together as a backlight source.
  • the light board 2 is a Mini LED (Mini Light Emitting Diode, Mini LED for short) light board, that is, the lights on the light board are Mini LEDs, and the light-emitting chips used in MiniLEDs are micron-level or sub-millimeter-level.
  • Mini LED Mini Light Emitting Diode, Mini LED for short
  • the direction of the display panel facing the user is the front
  • the direction facing away from the user is the rear
  • the direction facing the center of the display panel is inward
  • the direction away from the center of the display panel is direction is outside.
  • FIG. 3 is a schematic diagram of an exploded structure of a backplane of a display device embodiment of the present application.
  • FIG. 4 is a partial cross-sectional view of the back plate of the embodiment of the display device of the present application, and the figure illustrates a schematic view cut from the center of the first positioning rivet post.
  • the backplane 1 includes a backplane body 11 , a frame assembly 12 and a bracket 13 .
  • the main body 11 of the backplane, the frame assembly 12 and the bracket 13 are three separate components, which are manufactured separately and assembled together by means of assembly, so that each component of the backplane 1 can be manufactured and processed separately.
  • Integrated structure, the structure of a single component is simpler, and the manufacturing of each component will not affect each other, thereby facilitating the processing and manufacturing of the backplane 1, reducing the processing difficulty and cost of the backplane 1, and shortening the mold opening cycle.
  • the back plate main body 11 is a flat structure.
  • the lamp panel 2 is attached to the front surface of the back panel main body 11 .
  • the backplane body 11 of the flat plate structure is easy to process, and since the backplane body 11 is independent of the frame assembly, the processing of the backboard body 11 will not be affected by the frame assembly, which effectively reduces the deformation amount of the backboard body 11 during processing. , which effectively guarantees the flatness of the surface of the main body 11 of the backplane, and reduces the risk of the subjective influence of the backplane distortion and valgus deformation on the small OD product.
  • the main body 11 of the back plate is provided with a first positioning rivet post 14 and a second positioning rivet post 15 , and the inner circumferences of the first positioning rivet post 14 and the second positioning rivet post 15 are provided with threads.
  • the first positioning rivet post 14 protrudes backward from the rear surface of the backplane main body 11, and the second positioning rivet post 15 protrudes forwardly from the front surface of the backboard main body 11; the first positioning rivet post 14 and the second positioning rivet post 15 are used for and
  • the frame assembly 12 is positioned and fixed.
  • the front end of the first positioning rivet post 14 is flush with the front surface of the back plate main body 11 , and the front end of the first positioning rivet post 14 protrudes outward along the circumferential direction and overlaps the back plate main body 11 .
  • the rear end of the second positioning rivet post 15 is flush with the rear surface of the back plate main body 11 , and the rear end of the second positioning rivet post 15 protrudes outward along the circumferential direction and overlaps the back plate main body 11 .
  • first positioning riveting post 14 and the second positioning riveting post 15 are not provided with threads, the first positioning riveting post 14 and the second positioning riveting post 15 are only used for positioning, and are on the main body of the back plate. Corresponding threaded holes are provided on the backplane 11 , and the backplane main body 11 and the frame assembly 12 are connected by bolts or screws.
  • the backplane body 11 and the frame assembly 12 are pasted and connected through a glue dispensing process.
  • FIG. 5 is a partial cross-sectional view of a back plate of an embodiment of a display device of the present application, and the figure shows a schematic view cut from the center of the standoff.
  • the back plate main body 11 is further provided with a nut column 16 , the nut column 16 is provided with an internal thread, the nut column 16 is embedded on the back plate main body 11 , and both ends of the nut column 16 are Do not extend beyond the backplane body 11 .
  • the standoffs 16 are used to connect the frame assembly 12 and fix the light panel 2 on the back panel main body 11 .
  • FIG. 6 is a partial cross-sectional view of another embodiment of the display device of the present application, and the figure shows a schematic view cut from the center of the third positioning rivet post.
  • the lamp board 2 is provided with corresponding lamp beads and circuits, so that the lamp board 2 may have static electricity when it is working.
  • the back plate main body 11 includes two metal layers 111 spaced in the front and rear directions and an insulating layer 112 sandwiched between the two metal layers 111; the back plate main body 11 is also provided with a third positioning rivet post 17 that can conduct electricity.
  • the three positioning rivets 17 pass through the two metal layers 111 and abut against the two metal layers 111 ; the third positioning rivets 17 protrude forward from the front metal layer 111 , contact the lamp board 2 and limit the lamp board 2 .
  • the position of the lamp panel 2 on the back panel main body 11 is located by the third positioning rivet post 17, and the abutment between the metal layer 111 and the third positioning riveting post 17 enables conduction between the two metal layers 111 to meet the requirements of the lamp panel. 2 grounding requirements.
  • the light board 2 includes a circuit board and a light on the circuit board, wherein the circuit board is a metal-based circuit board, in some embodiments, the metal-based circuit board is an aluminum-based circuit board, and the light board 2 is working
  • the generated electricity is exported through the conductive path formed between the lamp panel 2 and the back panel main body 11 to meet the grounding requirement of the lamp panel.
  • the insulating layer 112 is made of polyethylene (PE) material. In some embodiments, the insulating layer 112 is made of polycarbonate (PC) material.
  • PE polyethylene
  • PC polycarbonate
  • the third positioning rivet post 17 is embedded in the backboard main body 11 , and the front end of the third positioning rivet post 17 protrudes outward along the circumferential direction and overlaps the backboard main body 11 .
  • the main body 11 of the back plate is also provided with a fourth positioning rivet post 18, the inner circumference of the fourth positioning rivet post 18 is provided with threads, and the fourth positioning rivet post 18 is embedded in the main body 11 of the back plate;
  • the rear end of the positioning riveting post 18 protrudes outward in the circumferential direction, and is overlapped on the back plate main body 11 .
  • the lamp board 2 and the fourth positioning riveting post 18 are fixed by fasteners.
  • the frame assembly 12 surrounds the periphery of the back panel main body 11 and protrudes forward from the back panel main body 11 .
  • the frame assembly 12 includes a sky side frame 121 extending along the upper edge and the left and right edges of the backplane main body 11 and a ground side frame 122 extending along the lower side edge of the back panel main body 11 ; the sky side frame 121 is connected by the first positioning riveting column 14 on the backplane body 11 .
  • the ground side frame 122 is connected to the backboard main body 11 through the second positioning riveting post 15 .
  • a mounting portion 1211 is formed on the inner side of the rear end of the sky side frame 121 to extend inward.
  • the left and right sides of the sky side frame 121 extend beyond the backboard main body 11 along the left and right edges of the backboard main body 11 , so that the backboard main body 11 is enclosed outside the backboard main body 11 .
  • the mounting portion 1211 is provided with a plurality of through holes, and the first positioning rivet post 14 protrudes into the through holes.
  • the front surface of the mounting portion 1211 is attached to the rear surface of the backplane main body 11, and a plurality of fasteners pass through the mounting portion respectively.
  • the through holes on 1211 are respectively connected to the first positioning rivet post 14 and the nut 16 on the backplane main body 11 , so that the front surface of the mounting portion 1211 and the rear surface of the backplane main body 11 are fixed together.
  • the first positioning riveting post 14 protrudes rearward from the rear surface of the back panel main body 11, so that when the sky side frame 121 is installed on the back panel main body 11, the sky side frame 121 and the back panel main body 11 can be quickly aligned, so as to improve the assembly. s efficiency.
  • the front end of the first positioning rivet post 14 protrudes outward along the circumferential direction, and overlaps with the back plate main body 11. After the first positioning riveting post 14 is connected to the sky side frame 121 by bolts, the first positioning riveting post 14 is prevented from moving backward. , to ensure the stability of the connection between the sky side frame 121 on the backplane main body 11 .
  • the sky side frame 121 further includes a bearing portion 1212 and an extension portion 1213 , and the bearing portion 1212 and the extension portion 1213 are enclosed on the outside of the backplane main body 11 .
  • the inner side of the rear part of the extension part 1213 is connected to the outer side of the mounting part 1211 , the outer side of the extension part 1213 is an inclined surface inclined outward in the direction from the rear to the front, the bearing part 1212 is connected to the front part of the extension part 1213 ; the bracket 13 is connected to the On the upper surface of the bearing portion 1212, the middle frame 4 is fixed on the bracket 13, the outer side of the middle frame 4 is enclosed with the outer side of the bearing portion 1212, and the rear end of the middle frame 4 does not exceed the rear end of the bearing portion 1212, so that the entire
  • the upper edge and the lower edge of the display device have smaller thicknesses, the edge of the display device is thinner, the display is more beautiful, and meets market demands.
  • aluminum frames with different inclination angles or radians can be designed to meet the requirement of thinning thickness, which is beneficial to the appearance of the entire display device.
  • FIG. 7 is a partial cross-sectional view of a backplane of an embodiment of a display device of the present application, and the figure illustrates a schematic view cut from a positioning hole.
  • the front surface of the bearing portion 1212 is provided with a positioning hole 1214 and a threaded hole for positioning and fixing the bracket 13 .
  • Both ends of the ground side frame 122 are in contact with the sky side frame 121 , the rear surface of the ground side frame 122 is attached to the front surface of the backplane main body 11 , and the ground side frame 122 is provided with a countersunk hole extending in the front-rear direction.
  • the countersunk head hole of the side frame 122 is matched with the second positioning riveting post 15 , the second positioning riveting post 15 extends into the countersunk head hole of the ground side frame 122 , and the fastener is passed through the countersunk head hole of the ground side frame 122
  • the second positioning riveting post 15 is screwed to connect the ground side frame 122 and the main body 11 of the backplane fixedly.
  • the second positioning rivets 15 protrude forward from the front surface of the backplane main body 11 , so that when the ground side frame 122 is installed on the backplane main body 11 , the ground side frame 122 and the backplane main body 11 can be quickly aligned, so as to improve the assembly. s efficiency.
  • the rear end of the second positioning rivet 15 protrudes outward in the circumferential direction, and overlaps the back plate main body 11. After the second positioning rivet 15 is bolted to the side frame 122, the second positioning rivet 15 is prevented from moving forward The movement ensures the stability of the connection between the ground side frame 122 on the backplane main body 11 .
  • a step surface is formed on the ground side frame 122 , and a film mounting lug (not shown in the figure) is formed on the stepped surface, and the diaphragm mounting lug is used for fixing and positioning the optical film 3 .
  • FIG. 8 is a partial cross-sectional view of a back panel of a display device embodiment of the present application, showing a bracket and a bracket snap protrusion.
  • the bracket 13 is formed by stamping and bending a metal material.
  • the bracket 13 extends along the edge of the frame assembly 12 , and the bracket 13 includes a connecting portion 131 that is attached and fixed to the front end of the frame assembly 12 , an engaging portion 132 that extends forward from the outer side of the connecting portion 131 , and is clamped and limited to the engaging portion 132
  • the metal dome 133 is formed by stamping and bending a metal material.
  • the bracket 13 extends along the edge of the sky side frame 121 , and the connecting portion 131 of the bracket 13 is fixed on the bearing portion 1212 of the sky side frame 121 .
  • the engaging portion 132 is provided with a bracket engaging protrusion 1321 .
  • the bracket engaging protrusion 1321 is protruded on the outer side wall of the engaging portion 132 .
  • the bracket locking protrusion 1321 is protruded on the inner sidewall of the locking portion 132 .
  • the front portion of the bracket snap-on protrusion 1321 is set as an inclined surface inclined backward.
  • the metal elastic pieces 133 are provided with card holes (not shown in the figure).
  • the bracket clipping protrusions 1321 extend into the clipping holes, so that the clipping holes and the bracket clipping projections 1321 are engaged and limited, and the limit metal elastic pieces 133 fall off from the engaging portions 132 .
  • the metal elastic piece 133 is protruded on the engaging portion 132 . Specifically, a portion of the metal elastic piece 133 is protruded on the engaging portion 132 in a direction away from the side wall of the engaging portion 132 .
  • the connecting portion 131 of the bracket 13 is provided with a positioning protrusion 1311 protruding backward, and the positioning protrusion 1311 extends into and is limited to the positioning hole 1214 on the front surface of the frame assembly 12 to position the bracket 13 and the frame assembly 12, This facilitates quick installation of the bracket 13 and the frame assembly 12 during assembly.
  • the connecting portion 131 of the bracket 13 and the frame assembly 12 are connected by fasteners. Specifically, the fasteners are threadedly connected to the threaded holes on the bearing portion 1212 to fix the bracket 13 on the sky-side frame 121 .
  • the connecting portion 131 is bent to form two layers, so that the structural strength of the connecting portion 131 is higher, the bracket 13 is not easily deformed, and the structure of the entire display device is more stable.
  • FIG. 9 is a partial cross-sectional view of a back panel of an embodiment of a display device of the present application, showing a bracket and a diaphragm hanging lug.
  • the upper surface of the connecting portion 131 of the bracket 13 is flush with the stepped surface of the ground side frame 122 for carrying the optical film 3 .
  • the front surface of the connecting portion 131 of the bracket 13 is provided with a film hanging lug 1312 protruding forward for positioning the optical film 3 .
  • the fixing and unfolding of the optical film 3 is realized by the film hanging lugs 1312 on the connecting portion 131 and the film hanging lugs on the ground side frame 122 .
  • FIG. 10 is a cross-sectional view of a middle frame of a display device embodiment of the present application.
  • the middle frame 4 is an annular structure; the middle frame 4 is provided with a slot 41 with an open rear end, and the slot 41 is engaged with the engaging portion 132 .
  • the middle frame 4 is locked on the engaging portion 132 through the card slot 41 from the front to the rear, so that the middle frame 4 and the back panel 1 can be quickly installed.
  • the middle frame 4 is provided with a recessed portion (not shown in the figure) on the side peripheral wall of the card slot 41 ; the metal elastic sheet 133 is elastically pressed into the recessed portion to restrict the forward movement of the middle frame 4 relative to the bracket 13, and the middle frame 4 and the bracket 13 are connected and fixed without using fasteners such as bolts, so that the middle frame 4 and the bracket 13 can be fixed and quickly installed.
  • An extension plate 42 is formed inwardly extending from the inner side of the middle frame 4 .
  • the extension plate 42 is located in front of the bracket 13 and is used for installing and fixing the display panel 5 .
  • the lamp panel 2 is fixed to the front surface of the back panel main body 11 .
  • the plate-like structure of the back panel main body 11 ensures the flatness of the back panel main body 11 after processing.
  • the light panel 2 is attached to the front surface of the back panel main body 11, and the back panel main body 11 supports the light panel 2 to effectively avoid the The lamp panel 2 is deformed to ensure the flatness of the lamp panel 2, so that the direct type display device has a better backlight effect.
  • the optical film 3 is fixed to the front surface of the connecting portion 131 of the bracket 13 .
  • the edge of the optical film 3 is located between the front surface of the connecting portion 131 and the rear of the extension plate 42 of the middle frame 4 . Since the frame assembly 12 protrudes forward from the backplane main body 11 , the connecting portion 131 of the bracket 13 is attached and fixed to the front end of the frame assembly 12 , so that the optical film 3 is located in front of the light board 2 and has a space from the light board 2 .
  • the display panel 5 is fixed on the middle frame 4 .
  • the edge of the display panel 5 is fixed to the front surface of the extension plate 42 of the middle frame 4 by means of adhesive tape, so that the display panel 5 is located in front of the optical film 3 .
  • the light plate 2 is attached to the front surface of the backplane main body 11; the optical film 3 is fixed on the connecting portion 131, so that the optical film 3 is located in front of the light plate 2 and has a space from the light plate 2;
  • the display panel 5 is fixed on the extension plate 42 of the middle frame 4, so that the display panel 5 is located in front of the optical film 3, so that the light panel 2 is located behind the display panel 5, forming a direct light incident method.
  • the optical film set 3 includes a lower diffusion film, a first prism film, a second prism film and an upper diffusion film.
  • the prism structures of the first prism film and the second prism film are vertically staggered, and the first prism film, the second prism film and the upper diffusion film are sequentially stacked on the lower diffusion film.
  • the optical film set 3 includes a lower diffusion sheet, a prism sheet, a reflective polarizer, and an upper diffusion sheet arranged in sequence.
  • the liquid crystal display panel further includes a reflection sheet 6 , and the reflection sheet 6 is attached to the front surface of the lamp panel 2 .
  • the fasteners are screws or bolts.
  • the backplane 1 includes a backplane body 11 , a frame assembly 12 and a bracket 13 that are assembled together, so that each component of the backplane 1 can be manufactured and processed independently.
  • the structure is simpler, and the manufacture of each component will not affect each other, thereby facilitating the processing and manufacturing of the backplane 1, reducing the processing difficulty and cost of the backplane 1, thereby effectively improving the dimensional accuracy of each component of the backplane 1.
  • the backplane 1 and the middle frame 4 constitute the support structure of the display device, and the engaging portion 132 of the bracket 13 is engaged with the card slot 41, so that the middle frame 4 can be quickly installed on the backplane 1, the middle frame 4 and the backplane 1
  • the connection is simple and convenient, so as to facilitate the quick installation of the display device.

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

Abstract

L'invention concerne un dispositif d'affichage. Le dispositif d'affichage comprend un écran d'affichage (5) pour affichage et un fond de panier (1) disposé sur un côté de l'écran d'affichage (5) ; le fond de panier (1) comprend un corps de fond de panier (11) et un ensemble cadre (12) ; le corps de fond de panier (11) est plat ; l'ensemble cadre (12) entoure la périphérie du corps de fond de panier (11) ; et le corps de fond de panier (11) et l'ensemble cadre (12) sont assemblés d'un seul tenant. Des composants du fond de panier (1) peuvent être fabriqués ou usinés séparément, la structure d'un composant unique est plus simple que la structure d'un fond de panier global (1), et la fabrication des composants n'affecte pas l'un l'autre, facilitant ainsi l'usinage et la fabrication du fond de panier (1), et réduisant la difficulté d'usinage et le coût du fond de panier (1). Le corps de fond de panier (11) est d'une structure plate, et l'usinage de sa structure est simple. De plus, étant donné que le corps de fond de panier (11) est indépendant de l'ensemble cadre (12), l'usinage du fond de panier (11) ne serait pas affectée par l'ensemble cadre (12), ce qui permet de réduire efficacement la quantité de déformation du fond de panier (11) lorsqu'il est usiné, et la planéité de la surface du corps de fond de panier (11) peut être efficacement assurée.
PCT/CN2021/120132 2020-12-02 2021-09-24 Dispositif d'affichage WO2022116658A1 (fr)

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CN202011405627 2020-12-02
CN202110013599.2 2021-01-05
CN202110013599.2A CN114578603A (zh) 2020-12-02 2021-01-05 显示装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115113437A (zh) * 2022-08-03 2022-09-27 奇瑞汽车股份有限公司 车载显示屏及车辆
CN115143361A (zh) * 2022-07-29 2022-10-04 厦门弘汉光电科技有限公司 一种直驱式miniLED显示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116863832B (zh) * 2023-09-05 2024-01-12 惠科股份有限公司 背光模组和显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170728A (ja) * 2007-01-11 2008-07-24 Sony Corp バックライト装置及び表示装置
CN109239978A (zh) * 2018-11-19 2019-01-18 青岛海信电器股份有限公司 一种直下式显示装置
CN210270458U (zh) * 2019-09-19 2020-04-07 合肥京东方视讯科技有限公司 框架结构、背光模组及显示装置
CN111243448A (zh) * 2020-03-23 2020-06-05 京东方科技集团股份有限公司 一种显示模组及显示屏
CN111308764A (zh) * 2019-12-31 2020-06-19 海信视像科技股份有限公司 显示装置
CN211742549U (zh) * 2019-10-21 2020-10-23 海信视像科技股份有限公司 一种显示装置
CN211905927U (zh) * 2020-03-26 2020-11-10 深圳创维－Rgb电子有限公司 背光模组及液晶显示装置
CN211956061U (zh) * 2020-03-31 2020-11-17 海信视像科技股份有限公司 一种显示装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4211438B2 (ja) * 2003-03-11 2009-01-21 セイコーエプソン株式会社 液晶表示装置
CN102818193B (zh) * 2012-08-20 2014-12-10 创维液晶器件(深圳)有限公司 一种直下式led背光模组及其显示装置
CN103823312B (zh) * 2013-11-27 2018-09-11 京东方科技集团股份有限公司 一种电路驱动板、背板及显示装置
CN204462585U (zh) * 2015-03-09 2015-07-08 昆山龙腾光电有限公司 导电固定结构及显示装置
CN108303815B (zh) * 2018-01-26 2019-03-12 惠州市华星光电技术有限公司 显示模组和显示装置
CN108257513A (zh) * 2018-03-09 2018-07-06 奥捷科技（厦门）有限公司 一种显示装置及其制造方法
CN110392222B (zh) * 2018-04-23 2022-05-13 鸿富锦精密工业（深圳）有限公司 背板及电视机
CN208621875U (zh) * 2018-08-24 2019-03-19 昆山龙腾光电有限公司 一种pcb板的安装组件及液晶显示模块
CN208922011U (zh) * 2018-11-13 2019-05-31 深圳Tcl新技术有限公司 直下式液晶显示装置及直下式液晶电视
CN210864276U (zh) * 2019-12-11 2020-06-26 苏州东岩电子科技有限公司 一种直下式显示装置灯板元器件避位结构
CN111766742B (zh) * 2020-07-14 2022-10-14 深圳创维－Rgb电子有限公司 背光模组及装配治具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008170728A (ja) * 2007-01-11 2008-07-24 Sony Corp バックライト装置及び表示装置
CN109239978A (zh) * 2018-11-19 2019-01-18 青岛海信电器股份有限公司 一种直下式显示装置
CN210270458U (zh) * 2019-09-19 2020-04-07 合肥京东方视讯科技有限公司 框架结构、背光模组及显示装置
CN211742549U (zh) * 2019-10-21 2020-10-23 海信视像科技股份有限公司 一种显示装置
CN111308764A (zh) * 2019-12-31 2020-06-19 海信视像科技股份有限公司 显示装置
CN111243448A (zh) * 2020-03-23 2020-06-05 京东方科技集团股份有限公司 一种显示模组及显示屏
CN211905927U (zh) * 2020-03-26 2020-11-10 深圳创维－Rgb电子有限公司 背光模组及液晶显示装置
CN211956061U (zh) * 2020-03-31 2020-11-17 海信视像科技股份有限公司 一种显示装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115143361A (zh) * 2022-07-29 2022-10-04 厦门弘汉光电科技有限公司 一种直驱式miniLED显示装置
CN115143361B (zh) * 2022-07-29 2023-10-27 厦门弘汉光电科技有限公司 一种直驱式miniLED显示装置
CN115113437A (zh) * 2022-08-03 2022-09-27 奇瑞汽车股份有限公司 车载显示屏及车辆
CN115113437B (zh) * 2022-08-03 2024-05-14 奇瑞汽车股份有限公司 车载显示屏及车辆

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