CN113934049A - Backlight module and display device using same - Google Patents
Backlight module and display device using same Download PDFInfo
- Publication number
- CN113934049A CN113934049A CN202010606647.4A CN202010606647A CN113934049A CN 113934049 A CN113934049 A CN 113934049A CN 202010606647 A CN202010606647 A CN 202010606647A CN 113934049 A CN113934049 A CN 113934049A
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- Prior art keywords
- light
- light emitting
- backlight module
- guide plate
- light guide
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- 239000012790 adhesive layer Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Classifications
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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
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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
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
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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
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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
The invention provides a backlight module, which comprises a light guide plate and a light source component. The light guide plate is provided with an incident surface and an emergent surface which are adjacent. The light source assembly comprises a flexible circuit board and a light-emitting element. The flexible circuit board comprises a main body and a bearing part. The main body is provided with an opening, the bearing part is arranged in the opening and is provided with a connecting edge, and the connecting edge is connected with the edge of the opening so that the bearing part can swing relative to the main body. The light emitting element is arranged on the bearing part and is provided with a light emitting surface and a back surface opposite to the light emitting surface. The light emitting surface faces the light incident surface of the light guide plate. The invention further provides a display device comprising the backlight module. The backlight module is beneficial to improving the light utilization rate and the brightness performance, and the display device can improve the display quality.
Description
Technical Field
The present invention relates to a light source module and a display device, and more particularly, to a backlight module and a display device having the same.
Background
The liquid crystal display device comprises a backlight module and a display panel, wherein the backlight module is used for providing a display light source to the display panel. The backlight module comprises a direct type backlight module and a side type backlight module, wherein the side type backlight module has the advantage of thinner thickness because the luminous source is arranged beside the side surface (light incident surface) of the light guide plate, and is beneficial to reducing the thickness of the whole liquid crystal display device.
The existing side-in backlight module widely uses the light emitting diode light bar as the light emitting source. The light-emitting diode light bar comprises a circuit board and a plurality of light-emitting diodes, wherein the light-emitting diodes are arranged on the bearing surface of the circuit board. If the light emitting diodes are not arranged, and abnormal problems such as inclination relative to the bearing surface of the circuit board occur, the light emitting surfaces of the light emitting diodes incline relative to the light incident surface of the light guide plate. Therefore, part of light can not enter the light guide plate, the light utilization rate is reduced, the luminance (luminance) performance is not facilitated, the problem of uneven brightness is easily caused, and the display quality of the liquid crystal display device is influenced.
The background section is provided to aid in understanding the present invention, and thus the disclosure in the background section may include some prior art that does not constitute a part of the present invention as understood by those skilled in the art. Furthermore, the disclosure in the "background" section is not intended to represent a representation of the disclosure or of the problems one or more embodiments of the present invention would solve, nor is it intended to be interpreted as being known or appreciated by those skilled in the art prior to the filing date of the present application.
Disclosure of Invention
The invention provides a backlight module which is beneficial to improving the light utilization rate and the brightness performance.
The invention provides a display device, which can improve the display quality.
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, the present invention provides a backlight module including a light guide plate and a light source assembly. The light guide plate is provided with an incident surface and an emergent surface which are adjacent. The light source assembly comprises a flexible circuit board and a light-emitting element. The flexible circuit board comprises a main body and a bearing part. The main body is provided with an opening, the bearing part is arranged in the opening and is provided with a connecting edge, and the connecting edge is connected with the edge of the opening so that the bearing part can swing relative to the main body. The light emitting element is arranged on the bearing part and is provided with a light emitting surface and a back surface opposite to the light emitting surface. The light emitting surface faces the light incident surface of the light guide plate.
In order to achieve one or a part of or all of the above or other objects, the present invention further provides a display device, including the backlight module and a display panel, wherein the display panel is disposed on the backlight module and opposite to the light emitting surface of the light guide plate.
In the backlight module of the embodiment of the invention, the light source component adopts the flexible circuit board, so that the backlight module has compliance; the flexible circuit board comprises a main body and a bearing part, the light-emitting element is arranged on the bearing part, and the bearing part is used for swinging relative to the main body, so that the light-emitting element can move. When the backlight module is assembled, the light-emitting element can move along with the contact force of the light guide plate, and the light-emitting surface of the light-emitting element can be adjusted to be in contact with and substantially parallel to the light-in surface of the light guide plate. Therefore, the light emitted from the light-emitting surface can effectively enter the light guide plate, the light utilization rate is improved, and the problem of uneven brightness is improved. The display device of the embodiment of the invention can improve the display quality because of using the backlight module.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic cross-sectional view of a backlight module according to an embodiment of the invention.
Fig. 2 is a partial perspective view of a light source assembly of the backlight module of fig. 1. Fig. 3A to 3C are schematic cross-sectional views of the backlight module of fig. 1 in an assembling process.
Fig. 4 is a schematic bottom view of a skew condition of the light emitting element.
Fig. 5 is a schematic cross-sectional view of a backlight module according to another embodiment of the invention.
Fig. 6 is a partial perspective view of a light source assembly of the backlight module of fig. 5.
Fig. 7A to 7C are schematic cross-sectional views of the backlight module of fig. 5 in an assembling process.
Fig. 8 is a schematic view of a display device according to an embodiment of the invention.
List of reference numerals
1: display device
10. 10 a: backlight module
100: light guide plate
110: light incident surface
120: light emitting surface
200. 200 a: light source assembly
300. 300 a: flexible circuit board
310. 310 a: joint cutting
330. 330 a: main body
3300. 3300 a: opening holes
340. 340 a: bearing part
341. 341 a: connecting edge
400: light emitting element
440: luminous surface
450: back side of the panel
460: surface of
500: adhesive layer
600: connecting material
70: display panel
X, Y, Z: a direction axis.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of a preferred embodiment when read in conjunction with 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 is used for purposes of illustration and is in no way limiting.
Fig. 1 is a schematic cross-sectional view of a backlight module 10 according to an embodiment of the invention. Fig. 2 is a partial perspective view of a light source assembly 200 of the backlight module 10 of fig. 1. Referring to fig. 1 and fig. 2, the backlight module 10 includes a light guide plate 100 and a light source assembly 200. The light guide plate 100 has an incident surface 110 and an exit surface 120 adjacent to each other. The light source assembly 200 includes a flexible circuit board 300 and light emitting elements 400, and the light emitting elements 400 are disposed on the flexible circuit board 300. Further, the flexible circuit board 300 includes a main body 330 and a carrying portion 340 (described in detail later), and the light emitting device 400 is disposed on the carrying portion 340. The light emitting element 400 has a light emitting surface 440 and a back surface 450 opposite to the light emitting surface 440. The light source module 200 is disposed on the light incident surface 110 side of the light guide plate 100, and the light emitting surface 440 of the light emitting element 400 faces the light incident surface 110 of the light guide plate 100. In one embodiment, the light emitting device 400 is a light emitting diode, but it can be other types of light sources. In addition, the number of the light emitting elements 400 may be one or more.
Referring to fig. 1 and fig. 2, the main body 330 of the flexible circuit board 300 has an opening 3300 (shown in fig. 2), the supporting portion 340 is disposed in the opening 3300 and has a connecting edge 341, and the connecting edge 341 is connected to an edge of the opening 3300, so that the supporting portion 340 is used for swinging relative to the main body 330. The light emitting device 400 may be completely disposed on the supporting portion 340, but is not limited thereto. For example, the light emitting device 400 may be partially disposed on the supporting portion 340, as long as the light emitting device 400 can swing relative to the main body 330 via the supporting portion 340. The light emitting device 400 may further have a surface 460 connecting the light emitting surface 440 and the back surface 450. The surface 460 faces the flexible circuit board 300 and is connected to the carrier 340 in whole or in part. The connection method between the light emitting device 400 and the flexible printed circuit 300 includes Surface-mount technology (SMT), etc. The connection method is common knowledge in the art, and is not described herein.
In the embodiment of the invention, no matter what proportion of the portion of the light emitting device 400 located on the supporting portion 340 (or the main body 330), the light emitting device 400 should be able to swing with respect to the main body 330. As shown in fig. 2, the wobble has a component in the Z-axis direction. In summary, the light emitting elements 400 of the light source assembly 200 according to the embodiment of the present invention have mobility.
As mentioned above, the supporting portion 340 and the opening 3300 can be formed by cutting the flexible circuit board 300, but not limited thereto. When the supporting portion 340 is formed by cutting the flexible circuit board 300, the cutting slits 310 should be visible on the flexible circuit board 300. The slits 310 are now visible as the edges of the opening 3300, the slits 310 partially surrounding the light emitting element 400. For example, the slits 310 may be arc-shaped, C-shaped, or half-frame-shaped, and the carrier 340 has a shape corresponding to the slits 310. When the supporting portion 340 swings relative to the main body 330 with the connecting edge 341 as a rotation axis, the opening 3300 can be exposed. As shown in fig. 2, when there are a plurality of light emitting elements 400, the supporting portions 340 of the flexible circuit board 300 are also correspondingly provided, the supporting portions 340 are, for example, distributed at intervals along the X-axis direction, and the light emitting elements 400 are respectively disposed on the supporting portions 340. Each light emitting device 400 can swing on the supporting portion 340.
The light emitting surface 440 of the light emitting element 400 may further contact the light incident surface 110 of the light guide plate 100. In addition, because the light emitting elements 400 on the light source assembly 200 are movable, when the backlight module 10 is assembled and the light guide plate 100 is supported against the light emitting surfaces 440 of the light emitting elements 400, the positions of the light emitting elements 400 can be adjusted according to the contact force of the light guide plate 100, so as to facilitate the light emitting surfaces 440 to contact the light incident surface 110 of the light guide plate 100 and make the light emitting surfaces 440 substantially parallel to the light incident surface 110 of the light guide plate 100. Further taking fig. 3A to 3C as an example for illustration, fig. 3A to 3C are schematic cross-sectional views of the backlight module 10 of fig. 1 in an assembling process. As shown in fig. 3A, the light emitting device 400 may be skewed with respect to the flexible printed circuit board 300 due to the uneven distribution of the connecting material 600, such as solder, between the light emitting device 400 and the flexible printed circuit board 300. For example, referring to fig. 3A, fig. 3A illustrates that the light emitting device 400 tilts upward (the light emitting surface 440 of the light emitting device 400 faces the main body 330 of the flexible circuit board 300 obliquely) due to the uneven distribution of the connecting material 600, but in other cases, the light emitting device 400 may also tilt downward (the light emitting surface 440 of the light emitting device 400 faces away from the main body 330 of the flexible circuit board 300 obliquely) due to the uneven distribution of the connecting material 600, or, for example, referring to fig. 4, fig. 4 is a schematic bottom view of the light emitting device 400, which shows that the light emitting device 400 is tilted on the XY plane. Since the light emitting element 400 is tilted, the light emitting surface 440 may not be completely aligned with the light incident surface 110 of the light guide plate 100.
As shown in fig. 3A and 3B, the light emitting elements 400 are disposed on the carrier 340 through the connecting material 600, generally, the carrier 340 may hang down along the Z-axis direction due to the weight of the light emitting elements 400, and the light emitting elements 400 may tilt up due to the uneven distribution of the connecting material 600, for example, so that the light emitting surface 440 of the light emitting elements 400 is not parallel to the light incident surface 110 of the light guide plate 100 before the light source assembly 200 is assembled with the light guide plate 100. When the light guide plate 100 and the light source assembly 200 are assembled, the light guide plate 100 is close to the light emitting element 400, as shown in fig. 3B, when the light guide plate 100 contacts the light emitting element 400, because the bearing portion 340 where the light emitting element 400 is located can be lifted, bent, and bent, the light emitting element 400 is compliant to move, which is helpful to make the light emitting surface 440 completely bear against the light incident surface 110 of the light guide plate 100. As shown in fig. 3C, the light emitting surface 440 and the light incident surface 110 are substantially parallel and correspond to each other, so that the light emitted from the light emitting surface 440 of the self-luminous element 400 can effectively enter the light guide plate 100, thereby improving the light utilization rate and luminance performance. When a plurality of light emitting elements 400 are used, the contact and substantial parallelism between the light emitting surface 440 of each light emitting element 400 and the light incident surface 110 also ensures that no tilting, tilting or other skew occurs between all the light emitting elements 400 and the light guide plate 100, thereby helping to avoid the problem of uneven brightness and improving the display quality. It should be noted that, in other embodiments, even if the connection material 600 between the light emitting device 400 and the flexible circuit board 300 is uniformly distributed, the connection material can be applied to the backlight module 10 with the carrying portion 340 of the present invention, and the distribution range, shape and thickness of the connection material 600 are not limited in the present invention.
In the embodiment of the invention, the flexible circuit board 300 may also be partially connected to the light emitting surface 120 of the light guide plate 100. Referring to fig. 1, a surface portion of the flexible circuit board 300 in front of the light-emitting surface 440 is connected to the light-emitting surface 120 of the light guide plate 100. The backlight module 10 may further include an adhesive layer 500 adhered between the flexible circuit board 300 and the light-emitting surface 120 of the light guide plate 100, so that the light source assembly 200 and the light guide plate 100 are relatively fixed after the light source assembly 200 and the light guide plate 100 are assembled as shown in fig. 3A to 3C.
In the embodiment of fig. 1 and 2, the connecting edge 341 of the supporting portion 340 is adjacent to the light emitting surface 440 of the light emitting element 400, that is, the opening 3300 is exposed toward the back surface 450 of the light emitting element 400. If one side of the supporting portion 340 having the connecting edge 341 is regarded as a fixed end, the opposite side of the fixed end is a swinging end. When the light emitting device 400 is disposed closer to the swing end, it should swing to a greater extent with respect to the main body 330, and the movability is higher.
Fig. 5 is a schematic cross-sectional view of a backlight module 10a according to another embodiment of the invention. Fig. 6 is a partial perspective view of the light source assembly 200a of the backlight module 10a of fig. 5. As shown in fig. 5 and 6, the backlight module 10a includes a light guide plate 100 and a light source assembly 200a, a flexible circuit board 300a of the light source assembly 200a includes a main body 330a and a supporting portion 340a, wherein the main body 330a has an opening 3300a, the supporting portion 340a is disposed in the opening 3300a, and the light emitting element 400 is disposed in the supporting portion 340 a. The backlight module 10a of the embodiment shown in fig. 5 and 6 is similar to the backlight module 10 shown in fig. 1 and 2, and the main difference is that the connecting edge 341a of the supporting portion 340a of the flexible circuit board 300a is adjacent to the back surface 450 of the light emitting device 400. The supporting portion 340a and the opening 3300a are formed by, for example, cutting the flexible circuit board 300a, and the cut 310a is visible on the flexible circuit board 300a, and the cut 310a is an edge of the opening 3300a, the cut 310a partially surrounds the light emitting device 400, but the opening 3300a is exposed towards the direction close to the light emitting surface 440 of the light emitting device 400. Other similar elements in the backlight module 10 will not be described herein.
As shown in fig. 6, if one side of the supporting portion 340a having the connecting side 341a is regarded as a fixed end, and the opposite side of the fixed end is a swinging end, the light emitting element 400 can be disposed closer to the swinging end, so that the light emitting element is more movable and can swing to a greater extent relative to the main body 330 a.
Fig. 7A to 7C are schematic cross-sectional views of the backlight module 10a of fig. 5 in an assembling process. The assembly process of the backlight module 10a can also refer to the assembly process shown in fig. 3A to 3C, wherein as shown in fig. 7A to 7C, the light emitting element 400 disposed on the supporting portion 340a can swing in compliance with the contact force of the light guide plate 100, so that the light emitting surface 440 is in contact with and substantially parallel to the light incident surface 110 of the light guide plate 100. Furthermore, as shown in fig. 5, the flexible circuit board 300a of the light source assembly 200a may be partially connected to the light-emitting surface 120 of the light guide plate 100, that is, the surface portion of the flexible circuit board 300a located in front of the light-emitting surface 440 is connected to the light-emitting surface 120. After the light source assembly 200a and the light guide plate 100 are assembled as shown in fig. 7A to 7C, if the relative position between the light emitting elements 400 and the light guide plate 100 is determined, the adhesive layer 500 (shown in fig. 5) can be used to adhere the light source assembly 200a and the light guide plate 100.
Fig. 8 is a schematic diagram of a display device 1 according to an embodiment of the invention. As shown in fig. 8, the display device 1 includes a backlight module 10a and a display panel 70. The backlight module 10a is as described above and will not be described herein. In addition, the present embodiment is illustrated by the backlight module 10 a. It will be appreciated that the backlight module 10 may also be used in the display device 1.
As shown in fig. 8, the display panel 70 is disposed on the backlight module 10a and opposite to the light emitting surface 120 of the light guide plate 100. The light guide plate 100 is used to provide a surface light source (indicated by an upward arrow in the figure) to the display panel 70. In one embodiment, the display panel 70 is a liquid crystal display panel, for example, but the invention is not limited to the type of the display panel 70. The backlight module 10a is adopted in the display device 1, and the assembly process ensures that the light emitting surface 440 of the light emitting element 400 is in contact with and substantially parallel to the light incident surface 110 of the light guide plate 100, so as to avoid the occurrence of tilting, tilting or other skew between the light emitting surface 440 and the light incident surface, and therefore, the display device 1 of the embodiment of the invention can avoid or reduce the problem of uneven brightness, and has better luminance performance and display quality.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents. Moreover, it is not necessary for any embodiment or claim of the invention to achieve all of the objects or advantages or features disclosed herein. Furthermore, the abstract and the title of the specification are provided only for assisting the retrieval of patent documents and are not intended to limit the scope of the present invention. Furthermore, the terms "first," "second," and the like in the description and in the claims are used for naming elements (elements) or distinguishing between different embodiments or ranges, and are not intended to limit the upper or lower limit on the number of elements.
Claims (8)
1. A backlight module is characterized by comprising a light guide plate and a light source component, wherein the light guide plate is provided with an incident surface and an emergent surface which are adjacent;
the light source component comprises a flexible circuit board and a light-emitting element,
the flexible circuit board comprises a main body and a bearing part, wherein the main body is provided with an opening, the bearing part is arranged in the opening and is provided with a connecting edge, and the connecting edge is connected with the edge of the opening so that the bearing part can swing relative to the main body;
the light emitting element is arranged on the bearing part and is provided with a light emitting surface and a back surface opposite to the light emitting surface, and the light emitting surface faces the light incident surface of the light guide plate.
2. The backlight module as claimed in claim 1, wherein the FPC is partially connected to the light-emitting surface of the light guide plate.
3. The backlight module of claim 2, further comprising an adhesive layer adhered between the FPC and the light-emitting surface of the light guide plate.
4. The backlight module of claim 1, wherein the light emitting surface of the light emitting element contacts the light incident surface of the light guide plate.
5. The backlight module of claim 1, wherein the connecting edge of the carrier is adjacent to the light emitting surface of the light emitting element.
6. The backlight module of claim 1, wherein the connecting edge of the carrier is adjacent to the back surface of the light emitting element.
7. The backlight module of claim 1, wherein the carrier is formed by cutting the flexible printed circuit.
8. A display device, comprising a backlight module and a display panel, wherein:
the backlight module comprises a light guide plate and a light source assembly, wherein:
the light guide plate is provided with an incident surface and an emergent surface which are adjacent;
the light source component comprises a flexible circuit board and a light-emitting element,
the flexible circuit board comprises a main body and a bearing part, wherein the main body is provided with an opening, the bearing part is arranged in the opening and is provided with a connecting edge, and the connecting edge is connected with the edge of the opening so that the bearing part can swing relative to the main body;
the light emitting element is configured on the bearing part and is provided with a light emitting surface and a back surface opposite to the light emitting surface, and the light emitting surface faces the light incident surface of the light guide plate;
the display panel is configured on the backlight module and is opposite to the light emergent surface of the light guide plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606647.4A CN113934049B (en) | 2020-06-29 | 2020-06-29 | Backlight module and display device using same |
| TW109124658A TWI746075B (en) | 2020-06-29 | 2020-07-22 | Backlight module and display apparatus using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010606647.4A CN113934049B (en) | 2020-06-29 | 2020-06-29 | Backlight module and display device using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113934049A true CN113934049A (en) | 2022-01-14 |
| CN113934049B CN113934049B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010606647.4A Active CN113934049B (en) | 2020-06-29 | 2020-06-29 | Backlight module and display device using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113934049B (en) |
| TW (1) | TWI746075B (en) |
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| JP5142499B2 (en) * | 2006-08-18 | 2013-02-13 | 株式会社ジャパンディスプレイイースト | Liquid crystal display |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW202201084A (en) | 2022-01-01 |
| CN113934049B (en) | 2024-06-11 |
| TWI746075B (en) | 2021-11-11 |
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