CN115113433A - Backlight module and display device - Google Patents

Backlight module and display device Download PDF

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Publication number
CN115113433A
CN115113433A CN202110284106.9A CN202110284106A CN115113433A CN 115113433 A CN115113433 A CN 115113433A CN 202110284106 A CN202110284106 A CN 202110284106A CN 115113433 A CN115113433 A CN 115113433A
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CN
China
Prior art keywords
light
backlight module
plate
extension plate
circuit substrate
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
CN202110284106.9A
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Chinese (zh)
Inventor
庞俊
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.)
Suzhou Canhong Photoelectric Co ltd
Original Assignee
Suzhou Canhong Photoelectric 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 Suzhou Canhong Photoelectric Co ltd filed Critical Suzhou Canhong Photoelectric Co ltd
Priority to CN202110284106.9A priority Critical patent/CN115113433A/en
Priority to TW110110978A priority patent/TW202238039A/en
Publication of CN115113433A publication Critical patent/CN115113433A/en
Pending legal-status Critical Current

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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • 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
    • G02B6/0091—Positioning aspects of the light source relative to the light guide

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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)

Abstract

A display device comprises a backlight module and a display panel. The backlight module comprises a back plate, a circuit substrate, a light guide plate, a plurality of light-emitting elements and a reflector plate. The back plate comprises a body, a side wall and an extension plate. The body is provided with a bearing surface, and the side wall is arranged on the bearing surface. The extension plate is connected to the side wall and extends in a direction away from the body in a direction parallel to the bearing surface. The circuit substrate is arranged on the bearing surface. The light guide plate is disposed on the circuit substrate and has a light incident surface and a light emitting surface. The plurality of light emitting elements are disposed on the circuit substrate. The light-emitting elements are positioned beside the light incident surface and adjacent to the side wall. The reflection sheet has a fixing portion and a reflection portion. The fixing part is arranged on the extension plate. The reflecting part covers the light-emitting elements and part of the light-emitting surface. The display panel is configured on the light-emitting side of the backlight module. The display device using the backlight module can improve the brightness uniformity of the picture.

Description

Backlight module and display device
Technical Field
The present invention relates to a backlight module, and more particularly, to a backlight module for a display device and a display device using the same.
Background
The liquid crystal display device comprises a liquid crystal display panel and a backlight module. Since the lcd panel itself does not emit light, the backlight module is required to provide a display light source to the lcd panel. Therefore, the main function of the backlight module is to provide a display light source with high luminance and high uniformity.
The backlight module can be conventionally divided into a side-in type backlight module and a direct type backlight module. Generally, the side-in backlight module is designed to bend the back plate toward the Light Emitting Diode (LED) at the side where the LED is disposed, i.e. the known lamp cover, and the reflective sheet is attached to the inside of the lamp cover, so that the light leakage at the edge of the backlight module can be reflected back to the light guide plate, thereby improving the light utilization rate.
However, when assembling the backlight module, the light emitting diode and the reflector plate need to be aligned to the bent portion of the back plate by means of the pushing jig, and the lamp cover is in a semi-closed state, so that the alignment is not easy to occur in the process, and the overall light emitting uniformity and the quality of the display image are affected. In addition, the light guide plate is also likely to impact the reflective sheet during the assembly process, which may cause the deformation of the reflective sheet.
The background section is provided to facilitate an understanding of the present disclosure, and thus the disclosure in the background section may include certain conventional techniques that are not known to those of skill in the art. Furthermore, the statements contained in the "background" section do not represent a representation of the claimed subject matter or the problems associated with one or more embodiments of the present disclosure, nor are they intended to be known or appreciated by those skilled in the art prior to the present disclosure.
Disclosure of Invention
The invention provides a backlight module with better light-emitting uniformity.
The invention provides a display device, which can improve the brightness uniformity of a picture.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above or other objects, a backlight module according to an embodiment of the invention includes a back plate, a circuit substrate, a light guide plate, a plurality of light emitting elements, and a reflective sheet. The back plate comprises a body, a side wall and an extension plate. The body is provided with a bearing surface, and the side wall is arranged on the bearing surface. The extending plate is connected to the side wall and extends in a direction away from the body in a direction parallel to the bearing surface. The circuit substrate is arranged on the bearing surface. The light guide plate is disposed on the circuit substrate and has a light incident surface and a light emitting surface. The plurality of light emitting elements are disposed on the circuit substrate. The light emitting elements are located beside the light incident surface and adjacent to the side wall. The reflection sheet has a fixing portion and a reflection portion. The fixing part is arranged on the extension plate. The reflecting part covers the light-emitting elements and part of the light-emitting surface.
In order to achieve one or a part of or all of the above or other objects, a display device provided by an embodiment of the invention includes a display panel and the backlight module. The display panel is configured on the light-emitting side of the backlight module.
In the backlight module of the embodiment of the invention, the extension plate of the back plate is connected to the side wall, and the extension plate extends in the direction parallel to the bearing surface and far away from the body to form an open structure. When a plurality of light emitting elements are arranged to be adjacent to the side wall, direct visual adjustment and easy alignment can be realized. In addition, the fixing part of the reflector plate can also be directly arranged on the extension plate and adjusted, so that the collision probability during the assembly of the light guide plate is reduced, and the maintenance of the subsequent light-emitting element or the reflector plate is also convenient. Because the plurality of light-emitting elements and the reflector plate can be aligned to the light guide plate, the incidence and the emergence of the whole light are more uniform, so that the backlight module provided by the embodiment of the invention has better light-emitting uniformity. The display device of the embodiment of the invention can improve the brightness uniformity of the picture because of using the backlight module.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the invention.
Fig. 2A is a top view of a backlight module without a reflector plate according to an embodiment of the invention.
Fig. 2B is a top view of a backlight module according to an embodiment of the invention.
Fig. 3 is a schematic diagram of one side of a backlight module having an extending plate according to an embodiment of the invention.
Fig. 4 is a top view of a backlight module without a reflector according to another embodiment of the invention.
List of reference numerals:
1: display device
10 backlight module
20 display panel
100. 100a back plate
110: body
111 bearing surface
120 side wall
121: groove
130. 130a extension plate
131 long side
132 extended daughter board
200 circuit board
300 light guide plate
310 incident light surface
320 light-emitting surface
330 bottom surface
331 diffusion microstructure
400 light-emitting element
500 reflective sheet
510 fixed part
520 reflection part
600 optical film group
610. 620, 630 optical film
700 adhesive layer
A. B is the direction
G is clearance
H1, H2 length
L is light.
Detailed Description
The foregoing and other features and advantages of the invention will be apparent from the following, more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting.
Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the invention. Fig. 2A is a top view of the backlight module of the present invention without a reflector. Fig. 2B is a top view of the backlight module of the present invention. Referring to fig. 1, a display device 1 of the present embodiment includes a backlight module 10 and a display panel 20. The backlight module 10 includes a back plate 100, a circuit substrate 200, a light guide plate 300, a plurality of light emitting elements 400, and a reflective sheet 500. The back plate 100 includes a body 110, a sidewall 120, and an extension plate 130. The main body 110 has a supporting surface 111, and the sidewall 120 is disposed on the supporting surface 111. The extension plate 130 is connected to the sidewall 120, and the extension plate 130 extends in a direction away from the body 110 in a direction a (i.e., parallel to the X-axis) parallel to the bearing surface 111, for example, that is, the extension plate 130 is substantially connected to the outer side of the sidewall 120. In the present embodiment, the body 110, the sidewall 120 and the extension plate 130 are integrally formed, but not limited thereto, and the sidewall 120 and the extension plate 130 are separated by a dotted line in the illustration. The circuit substrate 200 is disposed on the carrying surface 111. The light guide plate 300 is disposed on the circuit substrate 200 and has a light incident surface 310, a light emitting surface 320 and a bottom surface 330. The bottom surface 330 has a plurality of diffusion microstructures 331, for example, and the diffusion microstructures 331 can be dots or other microstructures capable of diffusing light. The light emitting elements 400 are disposed on the circuit substrate 200. The light emitting elements 400 are located beside the light incident surface 310 and adjacent to the sidewall 120, and are adapted to emit light L into the light guide plate 300 through the light incident surface 310. The reflection sheet 500 has a fixing portion 510 and a reflection portion 520. The fixing portion 510 is disposed on the extension plate 130. The reflection portion 520 covers the light emitting elements 400 and a portion of the light emitting surface 320. In general, the fixing portion 510 is disposed outside the sidewall 120, and the reflecting portion 520 is disposed inside the sidewall 120. When the extension plate 130 is parallel to the supporting surface 111, the reflective sheet 500 can be horizontally disposed on the extension plate 130, so as to reduce the influence on the reflection angle of the light L. In an embodiment, the backlight module 10 further includes a reflective layer 800 disposed between the light guide plate 300 and the supporting surface 111 for reflecting the light L leaking from the bottom surface 330 of the light guide plate 300 back to the light guide plate 300, but not limited thereto.
The display panel 20 is disposed on the light-emitting side of the backlight module 10. Specifically, the display panel 20 is disposed on the backlight module 10 and supported by the back plate 100. Taking the present embodiment as an example, one side of the display panel 20 corresponding to the extending plate 130 is disposed on the extending plate 130, and the fixing portion 510 is located between the extending plate 130 and the display panel 20. It should be noted that, in fig. 1, the display panel 20 and the backlight module 10 are illustrated separately for the purpose of clearly describing the structure of the backlight module 10, and do not represent the actual structure of the display device 1.
In the present embodiment, the shape of the fixing portion 510 corresponds to the shape of the extension plate 130, for example, but is not limited thereto. Taking the present embodiment as an example, referring to fig. 2A and fig. 2B, the long side 131 (shown as a dotted line in fig. 2A) of the extension board 130 is connected to the sidewall 120, and the length H1 of the long side 131 is, for example, smaller than the length H2 of the sidewall 120, so that the extension board 130 and the sidewall 120 form a gap at the corner. After the reflection sheet 500 is disposed, since the shape of the fixing portion 510 corresponds to the shape of the extension plate 130, the length of the fixing portion 510 is, for example, smaller than the length of the reflection portion 520 (as shown in fig. 2B). Fig. 2A and 2B are only one configuration, and the length H1 of the long side 131 of the extension board 130 is not particularly limited in the present invention. In other embodiments, the shape of the fixing portion 510 may not correspond to the shape of the extension plate 130.
The light emitting element 400 is, for example, a Light Emitting Diode (LED), but is not limited thereto. Fig. 2A illustrates 4 light-emitting elements 400, but the number of the light-emitting elements 400 is not particularly limited in the present invention. The light emitting device 400 may be a single strip lamp, for example, and the invention is not limited to the kind of the light emitting device 400. In the present embodiment, the light emitting elements 400 are arranged along a direction B parallel to the sidewall 120 (i.e. parallel to the Y-axis), for example, when a strip lamp is used, the long axis of the strip lamp is also arranged along the direction B, so as to ensure that the emitted light L can be uniformly incident on the light guide plate 300.
Referring to fig. 1 again, the circuit substrate 200 may be a hard board or a soft board, for example, for carrying the plurality of light emitting elements 400, and the circuit substrate 200 drives the plurality of light emitting elements 400 to emit light. The rigid board is, for example, a Metal Core Printed Circuit Board (MCPCB) or a copper foil substrate (e.g., FR4 substrate). In addition, the circuit substrate 200 may be provided with a highly reflective white paint coating (not shown) on a side facing the light guide plate 300 to reflect the light L leaking from the bottom surface 330 of the light guide plate 300 back into the light guide plate 300, but is not limited thereto.
The backlight module 10 of the present embodiment further includes an optical film assembly 600 disposed on the light-emitting surface 320. The optical film set 600 includes at least one optical film. At least one optical film of the optical film assembly 600 is, for example, but not limited to, a brightness enhancement film, a diffuser film, a prism sheet, or a composite prism sheet. The number of the at least one optical film is not limited in the present invention, and the optical film may be one or more, and in the present embodiment, three optical films 610, 620, and 630 are taken as an example and are sequentially stacked on the light guide plate 300. In addition, the optical films 610, 620, and 630 may be selected from different types according to different functions of the optical films. At least one of the optical films in the optical film group 600 covers the reflection portion 520, and in fig. 1, the optical film 630 covers the reflection portion 520, but is not limited thereto. Under the design, the light L leaking from the edge of the reflective sheet 500 can also enter the optical film 630, thereby reducing the light leakage at the edge of the image and achieving the effect of light output uniformity.
In the present embodiment, the backlight module 10 further includes an adhesive layer 700 disposed between the extending plate 130 and the reflective sheet 500. The adhesive layer 700 is, for example, an adhesive tape or an adhesive, and is suitable for fixing the reflective sheet 500 on the extension plate 130, so as to prevent the suspended portion (the reflective portion 520) of the reflective sheet 500 from falling off from the extension plate 130 due to its excessive weight. The adhesive layer 700 is, for example, but not limited to, an overall unsegmented adhesive layer. In other embodiments, the configuration of the adhesive layer 700 may be adjusted according to design requirements.
In the backlight module 10 of the present embodiment, the extending plate 130 of the back plate 100 is connected to the sidewall 120, and the extending plate 130 extends in a direction away from the body 110 in a direction a parallel to the supporting surface 111 to form an open structure. When the plurality of light emitting elements 400 are disposed adjacent to the sidewall 120, they can be directly visually adjusted and easily aligned. In addition, the fixing portion 510 of the reflective sheet 500 can also be directly disposed on the extension plate 130 and adjusted, so as to reduce the probability of impact when the light guide plate 300 is assembled, and facilitate the maintenance of the subsequent light emitting device 400 or the reflective sheet 500. Since the light emitting elements 400 and the reflective sheet 500 can be aligned with the light guide plate 300, the incident and emergent light L is relatively uniform, so that the backlight module 10 of the present embodiment has a better light emergent uniformity. The display device 1 of the present embodiment uses the backlight module 10, so that the brightness uniformity of the image can be improved.
FIG. 3 is a schematic diagram of a side of the backlight module having the extending plate according to the present invention. Referring to fig. 1 to fig. 3, in the present embodiment, the backlight module 10 further has the following design: the sidewall 120 has a groove 121 (the bearing surface 111 is not shown in fig. 3) recessed toward the bearing surface 111 at an end away from the bearing surface 111, but is not limited thereto. The extension 130 is, for example, a groove bottom connected to the groove 121 and extends in a direction away from the body 110. Specifically, the reflective sheet 500 passes through the groove 121 when being disposed. The adhesive layer 700 is illustrated in fig. 3 for clarity, and thus the thickness is shown as increasing, but not equal to a practical scale, and the thickness of the adhesive layer 700 should be negligibly small. Therefore, the depth of the groove 121 is substantially equal to the thickness of the reflective sheet 500, so that the top surface of the reflective sheet 500 is substantially coplanar with the top surface of the sidewall 120. The effect of this design is that when the display panel 20 is placed, if the side where the reflective sheet 500 is disposed is relatively convex, most of the weight of the display panel 20 will press on the reflective sheet 500, which may cause damage to the reflective sheet 500, and therefore, the reflective sheet 500 is disposed in the groove 121, and the top surface thereof can be substantially coplanar with the top surface of the sidewall 120, so that the weight of the display panel 20 can be evenly distributed on the other sides of the backlight module 10. If the thickness of the reflective sheet 500 is smaller than the depth of the groove 121, the thickness of the reflective sheet 500 may be increased, or a plurality of reflective sheets 500 may be disposed for adjustment. When there is a gap in the corner between the extension plate 130 and the sidewall 120 (as shown in fig. 2A and 2B), the display panel 20 may be supported by other elements such as the plastic frame or the back plate 100. The above design is only one of many embodiments of the present invention, and the present invention does not limit the configuration of the reflective sheet 500.
Fig. 4 is a top view of a backlight module without a reflector according to another embodiment of the invention. Referring to fig. 4, the back panel 100a of the present embodiment has similar structure and advantages to the back panel 100 described above, but the difference is that in the back panel 100a of the present embodiment, the extension board 130a is composed of a plurality of extension sub-boards 132 arranged at intervals, and a gap G is formed between each extension sub-board 132. With the design of the present embodiment, the material cost of the back plate 100a can be reduced, and good robustness can be provided when the reflective sheet is configured.
In summary, in the backlight module of the embodiment of the invention, the extending plate of the back plate is connected to the side wall, and the extending plate extends in a direction away from the main body in a direction parallel to the carrying surface, so as to form an open structure. When a plurality of light emitting elements are arranged to be adjacent to the side wall, direct visual adjustment and easy alignment can be realized. In addition, the fixing part of the reflector plate can also be directly arranged on the extension plate and adjusted, so that the collision probability during the assembly of the light guide plate is reduced, and the maintenance of the subsequent light-emitting element or the reflector plate is also convenient. Because the plurality of light-emitting elements and the reflector plate can be aligned to the light guide plate, the incidence and the emergence of the whole light are more uniform, so that the backlight module provided by the embodiment of the invention has better light-emitting uniformity. The display device of the embodiment of the invention can improve the brightness uniformity of the picture because of using the backlight module.
However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited by this, and all the simple equivalent changes and modifications made according to the claims and the summary of the present invention are still within the scope covered by the present invention. Moreover, it is not necessary for any embodiment or claim of the invention to address all of the objects, advantages, or features disclosed herein. In addition, the abstract and the title of the invention are provided for assisting the search of patent documents and are not intended to limit the scope of the invention.

Claims (11)

1. A backlight module, wherein the backlight module comprises a back plate, a circuit substrate, a light guide plate, a plurality of light emitting elements and a reflector plate, wherein:
the back plate comprises a body, a side wall and an extension plate, wherein the body is provided with a bearing surface, the side wall is arranged on the bearing surface, the extension plate is connected to the side wall, and the extension plate extends in a direction which is parallel to the bearing surface and is far away from the body;
the circuit substrate is arranged on the bearing surface;
the light guide plate is arranged on the circuit substrate and is provided with a light incident surface and a light emergent surface;
the light-emitting elements are arranged on the circuit substrate, and are positioned beside the light incident surface and adjacent to the side wall; and
the reflector plate is provided with a fixing part and a reflecting part, the fixing part is arranged on the extension plate, and the reflecting part covers the plurality of light-emitting elements and part of the light-emitting surface.
2. The backlight module of claim 1, wherein the shape of the fixing portion corresponds to the shape of the extension plate.
3. The backlight module of claim 1, further comprising an adhesive layer disposed between the extension plate and the reflective sheet.
4. The backlight module of claim 1, further comprising at least one optical film disposed on the light-emitting surface and covering the reflecting portion.
5. The backlight module of claim 1, wherein the light emitting elements are arranged along a direction parallel to the sidewalls.
6. The backlight module of claim 1, wherein the extension board is composed of a plurality of extension sub-boards arranged at intervals, and a gap is formed between each of the plurality of extension sub-boards.
7. The backlight module of claim 1, wherein the side walls have a groove recessed toward the supporting surface at an end away from the supporting surface, and the extending portion is connected to a bottom of the groove.
8. The backlight module of claim 7, wherein the long side of the extension plate is connected to the sidewall, and the length of the long side is less than the length of the sidewall.
9. The backlight module of claim 7, wherein the depth of the groove is substantially the same as the thickness of the reflector plate.
10. A display device, comprising a backlight module and a display panel, wherein:
the backlight module comprises a back plate, a circuit substrate, a light guide plate, a plurality of light-emitting elements and a reflector plate, wherein:
the back plate comprises a body, a side wall and an extension plate, wherein the body is provided with a bearing surface, the side wall is arranged on the bearing surface, the extension plate is connected to the side wall, and the extension plate extends in a direction which is parallel to the bearing surface and is far away from the body;
the circuit substrate is arranged on the bearing surface;
the light guide plate is arranged on the circuit substrate and is provided with a light incident surface and a light emergent surface;
the light-emitting elements are arranged on the circuit substrate, and are positioned beside the light incident surface and adjacent to the side wall; and
the reflector plate is provided with a fixing part and a reflecting part, the fixing part is arranged on the extension plate, and the reflecting part covers the plurality of light-emitting elements and part of the light-emitting surface; and
the display panel is configured on the light-emitting side of the backlight module.
11. The display device according to claim 10, wherein a side of the display panel corresponding to the extension plate is disposed on the extension plate, and the fixing portion is located between the extension plate and the display panel.
CN202110284106.9A 2021-03-17 2021-03-17 Backlight module and display device Pending CN115113433A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110284106.9A CN115113433A (en) 2021-03-17 2021-03-17 Backlight module and display device
TW110110978A TW202238039A (en) 2021-03-17 2021-03-26 Backlight module and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110284106.9A CN115113433A (en) 2021-03-17 2021-03-17 Backlight module and display device

Publications (1)

Publication Number Publication Date
CN115113433A true CN115113433A (en) 2022-09-27

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Application Number Title Priority Date Filing Date
CN202110284106.9A Pending CN115113433A (en) 2021-03-17 2021-03-17 Backlight module and display device

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CN (1) CN115113433A (en)
TW (1) TW202238039A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003036717A (en) * 2001-07-18 2003-02-07 Sony Corp Surface light source
CN102121623A (en) * 2010-11-29 2011-07-13 友达光电股份有限公司 LED light source structure
CN102434820A (en) * 2010-09-29 2012-05-02 三星电子株式会社 Backlight assembly and display apparatus having the same
CN202733684U (en) * 2012-08-22 2013-02-13 璨宇光学(南京)有限公司 Backlight module
CN204345430U (en) * 2015-01-16 2015-05-20 新科实业有限公司 Backlight module and there is the display of this backlight module
CN104676360A (en) * 2013-11-29 2015-06-03 扬升照明股份有限公司 Backlight module and display device
CN204422929U (en) * 2015-03-10 2015-06-24 中强光电股份有限公司 Electronic installation, display panel and backlight module
JP2015225803A (en) * 2014-05-29 2015-12-14 船井電機株式会社 Lighting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003036717A (en) * 2001-07-18 2003-02-07 Sony Corp Surface light source
CN102434820A (en) * 2010-09-29 2012-05-02 三星电子株式会社 Backlight assembly and display apparatus having the same
CN102121623A (en) * 2010-11-29 2011-07-13 友达光电股份有限公司 LED light source structure
CN202733684U (en) * 2012-08-22 2013-02-13 璨宇光学(南京)有限公司 Backlight module
CN104676360A (en) * 2013-11-29 2015-06-03 扬升照明股份有限公司 Backlight module and display device
JP2015225803A (en) * 2014-05-29 2015-12-14 船井電機株式会社 Lighting device
CN204345430U (en) * 2015-01-16 2015-05-20 新科实业有限公司 Backlight module and there is the display of this backlight module
CN204422929U (en) * 2015-03-10 2015-06-24 中强光电股份有限公司 Electronic installation, display panel and backlight module

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