CN111413761A - Backlight module and display device - Google Patents

Backlight module and display device Download PDF

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Publication number
CN111413761A
CN111413761A CN202010313455.4A CN202010313455A CN111413761A CN 111413761 A CN111413761 A CN 111413761A CN 202010313455 A CN202010313455 A CN 202010313455A CN 111413761 A CN111413761 A CN 111413761A
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CN
China
Prior art keywords
back plate
backlight module
display device
circuit board
printed circuit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010313455.4A
Other languages
Chinese (zh)
Inventor
刘洪�
彭钟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to CN202010313455.4A priority Critical patent/CN111413761A/en
Publication of CN111413761A publication Critical patent/CN111413761A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133612—Electrical details

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

The present disclosure provides a backlight module and a display device. The backlight module of the display device comprises a first back plate, a light guide plate, a light source and a second back plate. The first backplate is formed with and holds the chamber, and is provided with first kink, first kink is "U" type setting. The light guide plate and the light source are arranged in the accommodating cavity. The second back plate is arranged on the first bending part and extends towards the direction far away from the first back plate. The printed circuit board of the display device is arranged on the lower surface of the second back plate and is connected with the display panel through the flexible printed circuit board. The high screen ratio of the display device is met, and meanwhile, the thickness of the whole framework is not increased.

Description

Backlight module and display device
Technical Field
The disclosure relates to the field of display technologies, and in particular, to a backlight module and a display device.
Background
In the notebook industry at present, a backlight narrow frame is always the bottleneck of factory design. The design of the narrow frame of the backlight module can not only occupy less industrial appearance of the whole machine, but also be more easily matched and placed by elements such as batteries and the like. But also the screen occupation ratio is increased, the design is more beautiful, and the screen is easy to be popular in the market. The main stream design of the existing backlight module has the following two modes:
first, the printed circuit board is in a floating (float) form, as shown in fig. 1, the Printed Circuit Board (PCB) is located below the screen (panel), the backlight bezel extends out of the two back plate ears, and the printed circuit board is fixed in a way of punching screws or adhering conductive cloth. The design has the advantages that the whole framework has the same thickness from top to bottom, and the whole factory does not need to avoid components additionally. The defects are that the space below the whole machine occupies too much, the screen occupation ratio is reduced, and the use feeling of a user is poor.
Secondly, the printed circuit board is bent (bend), and as shown in fig. 2, the Printed Circuit Board (PCB) is folded back to the rear of the screen (panel) and is adhered to the backlight iron frame, so as to be fixed. The design has the advantages that the screen occupation ratio is increased, and the whole lower space is less. The disadvantages are that the thickness of the whole framework is increased, and the components such as the whole battery need to additionally avoid the space of the printed circuit board.
Therefore, the problem that the existing backlight module design can not meet the high screen ratio of the display device and the thickness of the whole framework is not increased needs to be solved.
Disclosure of Invention
The present disclosure provides a backlight module and a display device, so as to alleviate the technical problems that the existing backlight module design can not satisfy the high screen ratio of the display device and the whole framework thickness is not increased.
In order to solve the above problems, the technical solution provided by the present disclosure is as follows:
the embodiment of the disclosure provides a backlight module, which includes a first back plate, a light guide plate, a light source and a second back plate. The first back plate is provided with an accommodating cavity, at least one end of the first back plate is provided with a first bending part, and the first bending part is in a U-shaped arrangement. The light guide plate is arranged in the accommodating cavity. The light source is arranged in the accommodating cavity and is positioned on one side of the light guide plate. The second back plate is arranged on the first bending part and extends towards the direction far away from the first back plate. The extending tail end of the second back plate is provided with a second bending part, and the second bending part is in contact with the upper surface of the second back plate.
In the backlight module provided by the embodiment of the disclosure, the thickness of the first back plate is equal to that of the second back plate.
In the backlight module provided by the embodiment of the disclosure, the first bending portion and the first back plate are integrally disposed, and the second bending portion and the second back plate are integrally disposed.
In the backlight module provided by the embodiment of the disclosure, the material of the first back plate and the second back plate comprises metal.
In the backlight module provided by the embodiment of the disclosure, the connection manner of the first back plate and the second back plate includes integral arrangement or welding.
The embodiment of the disclosure further provides a display device, which includes the backlight module, the display panel disposed on the backlight module, the printed circuit board disposed on one side of the backlight module, and the electronic component mounted under the printed circuit board, wherein the printed circuit board is disposed on the lower surface of the second backplane and is not in contact with the first backplane, and the electronic component is disposed under the printed circuit board.
In the display device provided by the embodiment of the disclosure, the display panel includes an array substrate and a color film substrate disposed opposite to the array substrate, and the non-display side of the array substrate is disposed on the second backplane and is not in contact with the second bending portion.
In the display device provided by the embodiment of the present disclosure, a flexible printed wiring board for connecting the array substrate and the printed circuit board is further included.
In the display device provided by the embodiment of the disclosure, the length of the light guide plate is greater than that of the color film substrate.
In the display device provided by the embodiment of the disclosure, the sum of the thickness of the printed circuit board and the thickness of the electronic element is equal to the height of the first bending part.
The beneficial effects of this revelation do: in the backlight module and the display device provided by the disclosure, at least one end of the first back plate is provided with a U-shaped first bending part for supporting the display panel. The second back plate is arranged on the first bending part and extends towards the direction far away from the first back plate. The printed circuit board is arranged on the lower surface of the second back plate and is connected with the display panel through the flexible printed circuit board. The width of the lower frame of the display device is reduced, and the screen occupation ratio of the display device is improved. Meanwhile, the printed circuit board and the first bending part of the first back plate are positioned on the same horizontal plane, and the sum of the thickness of the printed circuit board and the thickness of the electronic element is equal to the height of the first bending part. Therefore, the whole thickness of the display device is not increased while the high screen occupation ratio is realized.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic bottom view of a prior art display device with a floating PCB design;
FIG. 2 is a schematic bottom view of a prior art display device with a printed circuit board having a bent design;
FIG. 3 is a schematic side view of a backlight module according to an embodiment of the disclosure;
fig. 4 is a schematic side view of a display device according to an embodiment of the disclosure.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the disclosure may be practiced. Directional phrases used in this disclosure, such as [ upper ], [ lower ], [ front ], [ back ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terms used are used for the purpose of illustration and understanding of the present disclosure, and are not used to limit the present disclosure. In the drawings, elements having similar structures are denoted by the same reference numerals.
In one embodiment, as shown in fig. 3, a backlight module 100 is provided, which includes a first back plate 10, a light guide plate 30, a light source 40 and a second back plate 20. The first back plate 10 is formed with an accommodating cavity 12, at least one end of the first back plate 10 is provided with a first bending portion 11, and the first bending portion 11 is in a U-shaped configuration. The light guide plate 30 is disposed in the accommodating cavity 12. The light source 40 is disposed in the accommodating cavity 12 and located at one side of the light guide plate 30. The second back plate 20 is disposed on the first bending portion 11 and extends toward a direction away from the first back plate 10. The extending end of the second back plate 20 is provided with a second bending portion 21, and the second bending portion 21 contacts with the upper surface of the second back plate 20.
Specifically, the light guide plate 30 and the light source 40 are disposed in the accommodating cavity 12 at the same layer, and a side-in type backlight manner is adopted, so that a light and thin design is easy to realize. An optical film 50 is disposed on the light guide plate 30.
Further, a fixing member 60 is disposed in the receiving cavity 12 of the first back plate 10 for fixing the light guide plate 30 and the light source 40, as shown in fig. 3, the fixing member 60 on one side is disposed in the U-shaped groove of the first bent portion 11, and the light source 40 may be a light emitting source such as blue light L ED.
Specifically, the first bending portion 11 and the first back plate 10 are integrally formed to ensure the overall firmness of the first back plate 10. Namely, the first bending part 11 in a U-shaped structure is formed at the end of the first back plate 10 by reverse folding.
Of course, as a general knowledge, the backlight module 100 of the present disclosure further includes optical elements such as a reflective sheet and a brightness enhancement film, which are not described herein again.
Further, the second back plate 20 is disposed on the first bending portion 11 of the first back plate 10 and extends toward a direction away from the first back plate 10, and a starting end of the second back plate 20 is flush with a terminal end of the first bending portion 11.
Further, a second bending portion 21 is disposed at an extending end of the second back plate 20. The second bent portion 21 and the second back plate 20 are integrally disposed, and the second bent portion 21 contacts with an upper surface of the second back plate 20. Namely, a second bending portion 21 is formed at the end of the second back plate 20 by reverse bending. Of course, the second bending portion 21 can also be a protruding block directly formed on the upper surface of the end of the second back plate 20 or a protruding block prepared in other ways, so that the bending manner is not required.
Further, the material of the first back sheet 10 and the second back sheet 20 may be metal or the like. For example, it may be metallic copper, aluminum or an alloy thereof.
Further, the first back plate 10 and the second back plate 20 may be integrally connected or welded to each other. Of course, with the integral arrangement, the overall combination of the first back plate 10 and the second back plate 20 is more secure.
Further, the thickness h1 of the first back sheet 10 is equal to the thickness h2 of the second back sheet 20, as shown in fig. 3.
In the embodiment, the back plate structure of the backlight module 100 is configured as the first back plate 10 and the second back plate 20 which are not in the same horizontal plane, and the area below the second back plate 20 and far away from the first back plate 10 can be used for disposing other components such as a printed circuit board. Thus, the overall thickness of the backlight module 100 is not increased when the narrow bezel design is implemented.
In an embodiment, as shown in fig. 4, a display device 1000 is provided, which includes the backlight module 100 of one of the above embodiments, and further includes a display panel 200 disposed on the backlight module 100, a printed circuit board 70 disposed on one side of the backlight module 100, and an electronic component 80 mounted on the printed circuit board 70, wherein the printed circuit board 70 is disposed on a lower surface of the second back plate 20 and is not in contact with the first back plate 10, and the electronic component 80 is disposed under the printed circuit board 70. Of course, as a general knowledge, the display device 1000 of the present disclosure further includes a cover plate, an upper polarizer, a lower polarizer, and other structures, which are not described herein again.
Specifically, the display panel 200 includes an array substrate 201 and a color filter substrate 202 disposed opposite to the array substrate 201, and the non-display side of the array substrate 201 is disposed on the second backplane 20 and is not in contact with the second bending portion 21. Of course, as a common general knowledge, the display panel 200 of the present disclosure further includes a liquid crystal molecular layer and a sealant disposed between the array substrate 201 and the color film substrate 202, which are not described herein again.
Specifically, the display device 1000 further includes a flexible printed circuit board 90, and the flexible printed circuit board 90 is used for connecting the array substrate 201 and the printed circuit board 70.
Specifically, one end of the flexible printed circuit board is connected to the traces on the non-display side of the array substrate 201, and the other end of the flexible printed circuit board is connected to the printed circuit board 70.
Further, the printed circuit board 70 may be fixed on the lower surface of the second back plate 20 by tape bonding or screw locking.
Further, an electronic component 80 is disposed below the printed circuit board 70. As shown in fig. 4, the sum of the thickness h3 of the printed circuit board 70 and the thickness h4 of the electronic component 80 is equal to the height h5 of the first bent portion 11. The thickness h4 of the electronic component 80 may be determined according to the height h5 of the first bent portion 11 and the thickness h3 of the printed circuit board 70, so as to ensure the uniformity of the overall thickness of the display device 1000.
Further, the length of the light guide plate 30 is greater than the length of the color filter substrate 202, that is, the setting area of the light guide plate 30 is greater than the display area of the color filter substrate 202, so as to ensure full display of the display area of the display device 1000.
In the present embodiment, the printed circuit board 70 is disposed on the lower surface of the second back plate 20, so that the width of the lower frame of the display device 1000 is reduced, and the screen occupation ratio of the display device 1000 is improved. Meanwhile, the upper surfaces of the printed circuit board 70 and the first bent portion 11 of the first back plate 10 are horizontal, and the thickness is smaller than that of the first bent portion 11, so that the whole thickness of the display device 1000 is not increased while the narrow-frame high-screen ratio is realized.
According to the above embodiments:
the disclosure provides a backlight module and a display device. The first backplate is formed with and holds the chamber, and is provided with first kink, first kink is "U" type setting. The light guide plate and the light source are arranged in an accommodating cavity formed by the first back plate. The second back plate is arranged on the first bending part and extends towards the direction far away from the first back plate. The printed circuit board of the display device is arranged on the lower surface of the second back plate and is connected with the display panel through the flexible printed circuit board. The width of the lower frame of the display device is reduced, and the screen occupation ratio of the display device is improved. Meanwhile, the printed circuit board and the first bending part of the first back plate are positioned on the same horizontal plane, and the sum of the thickness of the printed circuit board and the thickness of the electronic element is equal to the height of the first bending part. Therefore, the whole thickness of the display device is not increased while the high screen occupation ratio is realized.
In summary, although the present disclosure has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present disclosure, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, so that the scope of the present disclosure is defined by the appended claims.

Claims (10)

1. A backlight module, comprising:
the first back plate is provided with an accommodating cavity, at least one end of the first back plate is provided with a first bending part, and the first bending part is arranged in a U shape;
the light guide plate is arranged in the accommodating cavity;
the light source is arranged in the accommodating cavity and is positioned on one side of the light guide plate; and
the second back plate is arranged on the first bending part and extends towards the direction far away from the first back plate;
the extending tail end of the second back plate is provided with a second bending part, and the second bending part is in contact with the upper surface of the second back plate.
2. The backlight module as claimed in claim 1, wherein the first back plate has a thickness equal to that of the second back plate.
3. The backlight module according to claim 2, wherein the first bending portion and the first back plate are integrally formed, and the second bending portion and the second back plate are integrally formed.
4. The backlight module according to claim 1, wherein the material of the first and second back plates comprises metal.
5. The backlight module as claimed in claim 4, wherein the first back plate and the second back plate are connected by welding or integrated.
6. A display device, comprising the backlight module of any one of claims 1 to 5, a display panel disposed on the backlight module, a printed circuit board disposed on one side of the backlight module, and an electronic component disposed under the printed circuit board, wherein the printed circuit board is disposed on a lower surface of the second back plate and is not in contact with the first back plate, and the electronic component is disposed under the printed circuit board.
7. The display device according to claim 6, wherein the display panel comprises an array substrate and a color film substrate arranged opposite to the array substrate, and a non-display side of the array substrate is arranged on the second backplane and is not in contact with the second bending portion.
8. The display device according to claim 7, further comprising a flexible printed wiring board for connecting the array substrate and the printed circuit board.
9. The display device according to claim 7, wherein the length of the light guide plate is greater than that of the color filter substrate.
10. The display device according to claim 6, wherein a sum of a thickness of the printed circuit board and a thickness of the electronic component is equal to a height of the first bending portion.
CN202010313455.4A 2020-04-20 2020-04-20 Backlight module and display device Pending CN111413761A (en)

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Application Number Priority Date Filing Date Title
CN202010313455.4A CN111413761A (en) 2020-04-20 2020-04-20 Backlight module and display device

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Application Number Priority Date Filing Date Title
CN202010313455.4A CN111413761A (en) 2020-04-20 2020-04-20 Backlight module and display device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114624923A (en) * 2022-03-21 2022-06-14 广州华星光电半导体显示技术有限公司 Backlight module and display panel
WO2024193078A1 (en) * 2023-03-22 2024-09-26 武汉华星光电技术有限公司 Display module and display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975452A1 (en) * 2014-07-17 2016-01-20 Cheng-Tao Lee Backlight device
CN209373306U (en) * 2019-03-13 2019-09-10 京东方科技集团股份有限公司 Backlight module and liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2975452A1 (en) * 2014-07-17 2016-01-20 Cheng-Tao Lee Backlight device
CN209373306U (en) * 2019-03-13 2019-09-10 京东方科技集团股份有限公司 Backlight module and liquid crystal display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114624923A (en) * 2022-03-21 2022-06-14 广州华星光电半导体显示技术有限公司 Backlight module and display panel
WO2024193078A1 (en) * 2023-03-22 2024-09-26 武汉华星光电技术有限公司 Display module and display device

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Application publication date: 20200714