CN113934040B - Display device - Google Patents

Display device Download PDF

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Publication number
CN113934040B
CN113934040B CN202111271748.1A CN202111271748A CN113934040B CN 113934040 B CN113934040 B CN 113934040B CN 202111271748 A CN202111271748 A CN 202111271748A CN 113934040 B CN113934040 B CN 113934040B
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CN
China
Prior art keywords
display panel
display device
back frame
shell
electromagnetic
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Active
Application number
CN202111271748.1A
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Chinese (zh)
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CN113934040A (en
Inventor
肖士元
宋岁忙
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Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to CN202111271748.1A priority Critical patent/CN113934040B/en
Publication of CN113934040A publication Critical patent/CN113934040A/en
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Publication of CN113934040B publication Critical patent/CN113934040B/en
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Classifications

    • 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
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Ecology (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

The application provides a display device; the display device includes: the backlight module comprises a shell with a first accommodating cavity, a backlight module arranged in the first accommodating cavity of the shell, a back frame arranged on the shell and corresponding to the edge position of the shell, and a display panel fixed with the back frame and arranged opposite to the backlight module, wherein the back frame is detachably connected with the shell; according to the application, the back frame and the shell are detachably arranged, so that the wrapping adhesive tape is not required to be torn when the backlight module of the display device is overhauled, and the back frame and the shell are only required to be disassembled, thereby reducing the disassembly difficulty and improving the overhauling convenience.

Description

Display device
Technical Field
The application relates to the field of display technology, in particular to a display device.
Background
With the continuous development of display technology, the display screen has higher and higher requirements for a narrow frame. The present display device generally includes a housing, a backlight module disposed in the housing, and a display panel disposed on the backlight module, wherein the display panel is adhered and fixed to the housing by a back frame and a wrapping tape disposed at an edge of the housing.
However, in the current display device, since the edge-wrapping tape is adhered to the display panel, the back frame and the housing at the same time, if the backlight display is abnormal, the edge-wrapping tape, the display panel and other components need to be disassembled for maintenance, so that the disassembly difficulty is high, and the problem of inconvenient maintenance is caused.
Disclosure of Invention
The application provides a display device, which aims to solve the technical problems of high disassembly difficulty and inconvenient maintenance of the current display device.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
the present application provides a display device including:
a housing including a first receiving chamber;
the backlight module is arranged in the first accommodating cavity of the shell;
the back frame is arranged on the shell and corresponds to the edge position of the shell; the method comprises the steps of,
the display panel is arranged opposite to the backlight module and is fixedly connected with the back frame;
wherein, the back frame is detachably connected with the shell.
In the display device of the present application, the back frame includes an electromagnetic portion, and the case includes a magnetic layer in contact with the electromagnetic portion;
the back frame is fixedly connected with the shell through the magnetic attraction force of the electromagnetic part and the magnetic layer.
In the display device, a conductive adhesive layer is arranged between the display panel and the electromagnetic part, and the orthographic projection of the conductive adhesive layer on the display panel is positioned at the periphery of the display panel;
the display panel and the electromagnetic part are adhered and fixed through the conductive adhesive layer.
In the display device of the application, the first end of the electromagnetic part extends to the first accommodating cavity side of the shell, and the second end of the electromagnetic part is fixedly connected with the shell;
the conductive adhesive layer is arranged at the first end of the electromagnetic part, and the orthographic projection of the first end of the electromagnetic part on the display panel is positioned in the display panel.
In the display device of the present application, the back frame further includes a frame portion fixedly connected to the electromagnetic portion, the frame portion being fixedly connected to the electromagnetic portion;
the frame body part comprises a second accommodating cavity, and the display panel is positioned in the second accommodating cavity.
In the display device of the application, the electromagnetic part comprises a first electromagnet, a second electromagnet vertically fixed with the first electromagnet and an electrified spiral pipe sleeved on the second electromagnet;
the first electromagnet and the display panel are arranged in parallel, and the second electromagnet is embedded in the frame body.
In the display device of the application, the display panel comprises a panel body, a first polaroid arranged on the light-emitting surface of the panel body and a second polaroid arranged on one side of the panel body far away from the light-emitting surface;
the projection area of the second polaroid on the first polaroid is smaller than the area of the first polaroid.
In the display device of the application, the backlight module comprises a light guide plate and an optical film layer arranged on the light guide plate, wherein the surface of the optical film layer close to the display panel and the surface of the back frame close to the shell are arranged at intervals.
In the display device of the application, the surface of the frame body part away from the display panel is flush with the surface of the shell body away from the backlight module.
In the display device of the present application, the housing is made of a conductive metal material.
The beneficial effects are that: according to the application, the display panel is fixedly connected with the back frame, and the back frame and the shell are detachably arranged, so that the wrapping adhesive tape is not required to be torn when the backlight module of the display device is overhauled, and the backlight module can be separated from the back frame and the display panel only by disassembling the back frame and the shell, thereby reducing the disassembly difficulty and improving the overhauling convenience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the whole structure of a display device according to the present application;
fig. 2 is a schematic cross-sectional structure of the back frame according to the present application.
Reference numerals illustrate:
the display device includes a case 100, a first receiving cavity 110, a magnetic layer 120, a backlight module 200, a light guide plate 210, an optical film layer 220, a lower diffusion sheet 221, a prism sheet 222, an upper diffusion sheet 223, a reflection sheet 230, a back frame 300, an electromagnetic part 310, a first electromagnet 311, a second electromagnet 312, an energizing spiral pipe 313, a frame part 320, a second receiving cavity 321, a third receiving cavity 322, a display panel 400, a panel body 410, a first substrate 411, a second substrate 412, a first polarizer 420, a second polarizer 430, and a conductive adhesive layer 500.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
With the development of display panel technology and automobile technology, the requirements of display screens on narrow frames are also increasing. Along with the application of more and more display panel technologies to the field of automobiles, the requirements for the narrow frame of the vehicle-mounted display module are also higher and higher. The current vehicle-mounted display device generally comprises a shell, a backlight module arranged in the shell and a display panel arranged on the backlight module, wherein the display panel is adhered and fixed with the shell through a back frame and an edge wrapping adhesive tape arranged at the edge position of the shell. However, in the current display device, since the edge-wrapping tape is adhered to the display panel, the back frame and the housing at the same time, if the backlight display is abnormal, the edge-wrapping tape, the display panel and other components need to be disassembled for maintenance, so that the disassembly difficulty is high, and the problem of inconvenient maintenance is caused. The application provides the following scheme based on the technical problems.
Referring to fig. 1 and 2, the present application provides a display device, including:
a housing 100 including a first receiving chamber 110;
a backlight module 200 disposed in the first accommodating cavity 110 of the housing 100;
a back frame 300 disposed on the housing 100, wherein the back frame 300 corresponds to an edge position of the housing 100; the method comprises the steps of,
the display panel 400 is arranged opposite to the backlight module 200, and the display panel 400 is fixedly connected with the back frame 300;
wherein, the back frame 300 is detachably connected with the housing 100.
According to the application, the display panel 400 is fixedly connected with the back frame 300, and the back frame 300 and the shell 100 are detachably arranged, so that the wrapping tape is not required to be torn when the backlight module 200 of the display device is overhauled, and the backlight module 200 can be separated from the back frame 300 and the display panel 400 only by disassembling the back frame 300 and the shell 100, thereby reducing the disassembly difficulty and improving the overhauling convenience.
The technical scheme of the present application will now be described with reference to specific embodiments. The following description of the embodiments is not intended to limit the preferred embodiments.
In this embodiment, the housing 100 may be a rectangular housing 100 with an opening on a side and a hollow interior. The first accommodating cavity 110 of the housing 100 is configured to accommodate the backlight module 200, and the backlight module 200 may be well protected by the housing 100 in the first accommodating cavity 110, so as not to be easily damaged by collision.
In this embodiment, the back frame 300 may be a rectangular frame corresponding to the housing 100, where the rectangular frame is detachably and fixedly connected to an edge of the opening side of the housing 100, so as to facilitate the disassembly and separation of the back frame 300 from the housing 100.
In this embodiment, the display panel 400 is disposed in the rectangular frame and is fixedly connected with the back frame 300, so that the back frame 300 provides a base for fixing the display panel 400, and the back frame 300 may also provide a certain edge protection effect for the display panel 400, so that the display panel 400 is not easy to crack at the edge due to collision.
Referring to fig. 1, fig. 1 is a schematic overall structure of a display device according to the present application, in the display device according to the present application, the back frame 300 includes an electromagnetic portion 310, the housing 100 includes a magnetic layer 120 contacting with the electromagnetic portion 310, and the back frame 300 and the housing 100 are fixedly connected by magnetic attraction between the electromagnetic portion 310 and the magnetic layer 120.
In this embodiment, the back frame 300 is configured to include the electromagnetic portion 310, and the housing 100 is configured to include the magnetic layer 120, so that the display device may be firmly connected to the back frame 300 by energizing the electromagnetic portion 310 to generate magnetism so as to absorb the electromagnetic layer when the display device is in normal operation or standby; when the inside of the display device (such as the backlight module 200) needs to be overhauled, the electromagnetic portion 310 may be powered off to make the magnetism of the electromagnetic portion disappear, and then the magnetic attraction between the housing 100 and the back frame 300 disappears, so that the back frame 300 and the housing 100 may be disassembled more quickly and conveniently.
It should be noted that, the display device of the present application is used as a vehicle-mounted display module, and the current for generating the magnetic attraction force by the electromagnetic portion 310 is far smaller than the working current of the automobile battery in the normal state, so that the display module can maintain the magnetic attraction force of the electromagnetic portion 310 for a long time, and can meet the electric quantity requirement of the magnetic attraction force generated by the electromagnetic portion 310 even if the electric quantity of the automobile battery is insufficient.
Referring to fig. 1, in the display device of the present application, a conductive adhesive layer 500 is disposed between the display panel 400 and the electromagnetic portion 310, and a front projection of the conductive adhesive layer 500 on the display panel 400 is located at the periphery of the display panel 400. The display panel 400 and the electromagnetic portion 310 are adhered and fixed by the conductive adhesive layer 500. In this embodiment, the conductive adhesive layer 500 may be conductive foam.
In this embodiment, the conductive adhesive layer 500 is disposed on the periphery of the display panel 400, so that the fixed connection position between the electromagnetic portion 310 and the display panel 400 is located on the periphery of the display panel 400, thereby reducing the shielding of the connection position on the backlight emitted by the backlight module 200 and improving the display quality.
Referring to fig. 1, in the display device of the present application, a first end of the electromagnetic portion 310 extends toward the first accommodating cavity 110 of the housing 100, and a second end of the electromagnetic portion 310 is fixedly connected to the housing 100. The conductive adhesive layer 500 is disposed at a first end of the electromagnetic portion 310, and an orthographic projection of the first end of the electromagnetic portion 310 on the display panel 400 is located in the display panel 400. By the above arrangement, the first end of the electromagnetic portion 310 may be located below the display panel 400, so as to provide a supporting effect for the display panel 400, so that the combination between the display panel 400 and the back frame 300 and the housing 100 is more stable.
Referring to fig. 1, in the display device of the present application, the back frame 300 further includes a frame portion 320 fixedly connected to the electromagnetic portion 310, and the frame portion 320 is fixedly connected to the electromagnetic portion 310. The frame 320 includes a second accommodating cavity 321, and the display panel 400 is located in the second accommodating cavity 321.
In this embodiment, the frame portion 320 is provided, and the display panel 400 is disposed in the second accommodating cavity 321 of the frame portion 320, so that the back frame 300 may be fixedly connected with the display panel 400 and the housing 100 through the electromagnetic portion 310, and may provide a good protection effect for the display panel 400, so as to reduce the possibility of edge cracking of the display panel 400 caused by collision.
Referring to fig. 2, fig. 2 is a schematic cross-sectional structure of the back frame 300 of the present application, in the display device of the present application, the electromagnetic portion 310 includes a first electromagnet 311, a second electromagnet 312 vertically fixed to the first electromagnet 311, and an energizing spiral pipe 313 sleeved on the second electromagnet 312.
In this embodiment, the first electromagnet 311 is disposed parallel to the display panel 400, and the first electromagnet 311 may be a horizontal planar rectangular frame. The side of the frame portion 320 facing the electromagnetic portion 310 is provided with a third accommodating cavity 322 for accommodating the second electromagnet 312, the second electromagnet 312 is vertically connected to the first electromagnet 311, and the second electromagnet 312 is embedded in the third accommodating cavity 322 in the frame portion 320. The energizing coil 313 is also located in the third accommodation chamber 322, and the energizing coil 313 is surrounded outside the second electromagnet 312 so that the second electromagnet 312 functions as an iron core to be magnetized in the electromagnetic field of the energizing coil 313.
In this embodiment, the first electromagnet 311 and the second electromagnet 312 may be integrally formed. The first electromagnet 311 may be provided with a plurality of second electromagnets 312, and the plurality of second electromagnets 312 are distributed along the edge of the housing 100. In response, a plurality of third accommodation chambers 322 may be provided on a side of the frame portion 320 facing the electromagnetic portion 310, and the plurality of third accommodation chambers 322 may be in one-to-one correspondence with the plurality of second electromagnets 312.
In this embodiment, the plurality of third receiving chambers 322 on the frame 320 may also be sequentially connected to each other to form an integral receiving chamber.
In this embodiment, the energizing spiral pipe 313 generates an electromagnetic field when energized, so as to magnetize the first electromagnet 311 and the second electromagnet 312, and generate a magnetic attraction force to attract the magnetic layer 120 on the housing 100; when the power-on spiral pipe 313 is powered off, the magnetic attraction between the back frame 300 and the shell 100 is released, so that the back frame 300 and the shell 100 are conveniently disassembled. Through the above arrangement, the fixing and the disassembling between the back frame 300 and the housing 100 can be more convenient and quick, and the disassembling and assembling difficulty of the display device during internal overhaul can be effectively reduced.
Referring to fig. 1, in the display device of the present application, the display panel 400 includes a panel body 410, a first polarizer 420 disposed on the light-emitting surface of the panel body 410, and a second polarizer 430 disposed on a side of the panel body 410 away from the light-emitting surface. In this embodiment, the first polarizer 420 and the second polarizer 430 are disposed on two sides of the panel body 410 respectively, so as to improve the optical characteristics of the display panel 400, such as high brightness and contrast.
In this embodiment, the shape and area of the first polarizer 420 may be the same as the shape and area of the panel body 410, or may be similar to the shape and area of the panel body.
In this embodiment, the orthographic projection of the second polarizer 430 on the first polarizer 420 is located in the first polarizer 420, and the projection area of the second polarizer 430 on the first polarizer 420 is smaller than the area of the first polarizer 420.
With the above arrangement, the area of the second polarizer 430 can be made to be smaller than the panel body 410, so that a space is reserved on the panel body 410 for disposing the conductive adhesive layer 500.
In this embodiment, the display panel 400 may be any one of a liquid crystal display panel, an LED display panel, and a Mini-LED display panel. For example, as shown in fig. 1, the display panel 400 is a liquid crystal display panel, the panel body 410 includes a first substrate 411, a second substrate 412, and a liquid crystal layer (not shown) disposed between the first substrate 411 and the second substrate 412, the first substrate 411 is disposed opposite to the second substrate 412, the first polarizer 420 is disposed on a side of the first substrate 411 away from the second substrate 412, and the second polarizer 430 is disposed on a side of the second substrate 412 away from the first substrate 411.
Referring to fig. 1, in the display device of the present application, the backlight module 200 includes a light guide plate 210 and an optical film layer 220 disposed on the light guide plate 210, wherein the surface of the optical film layer 220 close to the display panel 400 and the surface of the back frame 300 close to the housing 100 are spaced apart, that is, a space exists between the surface of the optical film layer 220 close to the display panel 400 and the first electromagnet 311 of the back frame 300, so that a certain deformation space is reserved for the optical film layer 220, and abnormal display phenomena caused by extrusion of the optical film layer 220 during use are eliminated or reduced.
In this embodiment, the optical film layer 220 may include a lower diffusion sheet 221 disposed on the light-emitting surface of the light guide plate 210, a prism sheet 222 disposed on the lower diffusion sheet 221, and an upper diffusion sheet 223 disposed on the prism sheet 222.
In this embodiment, a reflective sheet 230 is disposed on a side of the light guide plate 210 facing away from the light emitting surface, and a side of the reflective sheet 230 facing away from the light guide plate 210 is adhered and fixed to a cavity wall of the first accommodating cavity 110 of the housing 100.
In this embodiment, the optical film layer 220 and the reflective sheet 230 are disposed on two sides of the light guide plate 210, so as to improve the brightness of the backlight module 200 and improve the display effect.
Referring to fig. 1, in the display device of the present application, a surface of the frame 320 away from the display panel 400 is flush with a surface of the housing 100 away from the backlight module 200. In this embodiment, since the back frame 300 and the housing 100 are fixed by the magnetic attraction between the electromagnetic portion 310 and the electromagnetic layer, the back frame 300 does not need to be wrapped around the housing 100 to facilitate the adhesion of the wrapping tape. In this embodiment, the surface of the frame 320 away from the display panel 400 and the surface of the housing 100 away from the backlight module 200 are set to be flush, so that the frame width of the frame 320 can be reduced, thereby realizing the narrower frame of the vehicle-mounted display module.
In the display device of the present application, the case 100 is made of a conductive metal material such as stainless steel, cu, fe, al, or an alloy material thereof, etc. In this embodiment, the casing 100 is made of a conductive metal material, so that static electricity on the display panel 400 can reach the casing 100 made of a metal material through the conductive adhesive layer 500, the electromagnetic portion 310 and the magnetic layer 120, thereby achieving the purpose of releasing static electricity, further improving the ESD capability of the product, improving the user experience, and enhancing the competitiveness of the product.
According to the embodiment of the application, the display panel 400 is fixedly connected with the back frame 300, and the back frame 300 and the shell 100 are detachably arranged, so that the wrapping tape is not required to be torn when the backlight module 200 of the display device is overhauled, and the backlight module 200 can be separated from the back frame 300 and the display panel 400 only by disassembling the back frame 300 and the shell 100, thereby reducing the disassembling difficulty and improving the overhauling convenience. In addition, in the embodiment of the present application, the back frame 300 and the housing 100 are fixed by magnetic attraction, so that the back frame 300 is omitted from wrapping the frame of the housing 100, thereby reducing the frame width of the display device; in addition, the static electricity on the display panel 400 can reach the metal shell 100 through the conductive adhesive layer 500, the electromagnetic portion 310 and the magnetic layer 120, thereby achieving the purpose of releasing static electricity and improving the ESD capability of the product.
The foregoing has outlined some of the more detailed description of the present application for a display device, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, and wherein the above examples are provided to assist in the understanding of the method and core concepts of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims (8)

1. A display device, comprising:
a housing including a first receiving chamber;
the backlight module is arranged in the first accommodating cavity of the shell;
the back frame is arranged on the shell and corresponds to the edge position of the shell; the method comprises the steps of,
the display panel is arranged opposite to the backlight module and is fixedly connected with the back frame;
wherein the back frame is detachably connected with the shell;
the back frame comprises an electromagnetic part, and the shell comprises a magnetic layer contacted with the electromagnetic part;
wherein the back frame is fixedly connected with the shell through the magnetic attraction force of the electromagnetic part and the magnetic layer;
a conductive adhesive layer is arranged between the display panel and the electromagnetic part, and orthographic projection of the conductive adhesive layer on the display panel is positioned at the periphery of the display panel;
the display panel and the electromagnetic part are adhered and fixed through the conductive adhesive layer;
the first end of the electromagnetic part extends to one side of the first accommodating cavity of the shell and is fixedly connected with the end part of the display panel through the conductive adhesive layer, and the second end of the electromagnetic part is connected with the magnetic layer; the end of the display panel is arranged in a staggered manner with the magnetic layer in a direction parallel to the display panel;
the display device is configured to: when the display device is in a normal working state or a standby state, the electromagnetic part generates magnetism in an electrified state; when the display device is in an overhaul state, the magnetism of the electromagnetic part is disappeared in a power-off state.
2. The display device of claim 1, wherein an orthographic projection of the first end of the electromagnetic portion onto the display panel is located within the display panel.
3. The display device according to claim 2, wherein the back frame further includes a frame portion fixedly connected to the electromagnetic portion, the frame portion being fixedly connected to the electromagnetic portion;
the frame body part comprises a second accommodating cavity, and the display panel is positioned in the second accommodating cavity.
4. A display device according to claim 3, wherein the electromagnetic portion comprises a first electromagnet, a second electromagnet fixed perpendicularly to the first electromagnet, and an energized spiral tube sleeved on the second electromagnet;
the first electromagnet and the display panel are arranged in parallel, and the second electromagnet is embedded in the frame body.
5. The display device of claim 1, wherein the display panel comprises a panel body, a first polarizer disposed on a light-emitting surface of the panel body, and a second polarizer disposed on a side of the panel body away from the light-emitting surface;
the projection area of the second polaroid on the first polaroid is smaller than the area of the first polaroid.
6. The display device of claim 1, wherein the backlight module comprises a light guide plate and an optical film layer arranged on the light guide plate, and the surface of the optical film layer close to the display panel and the surface of the back frame close to the shell are arranged at intervals.
7. A display device according to claim 3, wherein a surface of the frame portion remote from the display panel is flush with a surface of the housing remote from the backlight module.
8. The display device according to claim 1, wherein the housing is made of a conductive metal material.
CN202111271748.1A 2021-10-29 2021-10-29 Display device Active CN113934040B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103777400A (en) * 2012-10-23 2014-05-07 鑫成科技(成都)有限公司 Display device
CN107092135A (en) * 2017-06-23 2017-08-25 武汉华星光电技术有限公司 Backlight module and liquid crystal display module
CN206489346U (en) * 2016-11-08 2017-09-12 深圳市中深光电有限公司 It is a kind of to improve the backlight module of deformation light leak
CN110782775A (en) * 2018-07-31 2020-02-11 中强光电股份有限公司 Display device
KR20210015058A (en) * 2019-07-31 2021-02-10 엘지디스플레이 주식회사 Display Apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103777400A (en) * 2012-10-23 2014-05-07 鑫成科技(成都)有限公司 Display device
CN206489346U (en) * 2016-11-08 2017-09-12 深圳市中深光电有限公司 It is a kind of to improve the backlight module of deformation light leak
CN107092135A (en) * 2017-06-23 2017-08-25 武汉华星光电技术有限公司 Backlight module and liquid crystal display module
CN110782775A (en) * 2018-07-31 2020-02-11 中强光电股份有限公司 Display device
KR20210015058A (en) * 2019-07-31 2021-02-10 엘지디스플레이 주식회사 Display Apparatus

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