CN116466427B - Light guide plate side-in type backlight assembly - Google Patents
Light guide plate side-in type backlight assembly Download PDFInfo
- Publication number
- CN116466427B CN116466427B CN202310185317.6A CN202310185317A CN116466427B CN 116466427 B CN116466427 B CN 116466427B CN 202310185317 A CN202310185317 A CN 202310185317A CN 116466427 B CN116466427 B CN 116466427B
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- Prior art keywords
- guide plate
- light guide
- light
- plate
- light emitting
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- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001095 motoneuron effect Effects 0.000 description 1
Classifications
-
- 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
- G02B6/0085—Means for removing heat created by the light source from 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention relates to a light guide plate side-in type backlight assembly, which comprises a display panel (1), a light diffusion plate (2), a light guide plate (3), a radiation plate (4), a light emitting device (5) and a mounting base (7), wherein the front side of the light guide plate (4) is limited by the light diffusion plate (2), the rear side of the light guide plate (4) is the mounting base (7), the left side and the right side of the light guide plate (3) are respectively provided with the light emitting device (5), the two ends of the light guide plate (3) are respectively positioned in a light source bracket, the two light emitting devices (5) are respectively arranged in the light source bracket, and the backlight assembly further comprises an extrusion device (8), and the extrusion device (5) extrudes a heated expansion part generated on the front side and the rear side of the light guide plate (3), so that the light guide plate (3) expands towards the left side and the right side and is tightly attached to the light emitting device (5) to ensure the light guide effect, and meanwhile, the part of the light emitting device (5) extends out of the light source bracket to exchange heat with external cold air.
Description
Technical Field
The present invention relates to a display device, and more particularly, to a light guide plate side-entry type backlight assembly.
Background
The prior side-entry backlight liquid crystal display device, in particular to a high-brightness liquid crystal display device, can generate uneven brightness of the whole picture when working for a long time. Because the display is the highlight device, need use high-power LED to provide light energy, high-power LED lamp pearl can produce a large amount of heat energy at the during operation, and this heat energy can make the light guide plate thermal expansion, extrudees the reflecting plate after the light guide plate thermal expansion, therefore when extrudeed the reflecting plate, the light guide plate can produce irregular deformation, and when the light guide plate irregular deformation, whole display screen will be bright and dark inhomogeneous, influences the user and uses.
In the prior art, the deformation of the light guide plate is adjusted through the elastic piece, but the effect is limited in practice, and the problem that the display quality is reduced when the conventional backlight assembly continuously works can not be solved.
Disclosure of Invention
The invention designs a light guide plate side-in type backlight assembly, which solves the technical problem that the deformation of a light guide plate is adjusted through an elastic piece in the prior art, but the effect is limited in practice, and the problem that the display quality is reduced when the conventional backlight assembly continuously works can not be solved.
In order to solve the technical problems, the invention adopts the following scheme:
the utility model provides a light guide plate side income formula backlight unit, includes display panel, light dispersion board, light guide plate, reflecting plate, illuminator and installation base, and the light guide plate front side is spacing by the light dispersion board, and the light guide plate rear side is the installation base, and the light guide plate left and right sides is equipped with illuminator respectively, and the light guide plate both ends are located a light source support respectively, and two illuminator also install respectively in one in the light source support, still include extrusion device, extrusion device extrudees the thermal expansion portion that the light guide plate front and back side produced to make the light guide plate expand left and right sides and paste tight illuminator and ensure the light guide effect, simultaneously illuminator's part stretches out from the light source support and carries out the heat transfer with external cold air.
Further, the number of the pressing devices is plural, the same number of areas are set for the reflecting plate, and each area is used for adjusting the light guide plate through one pressing device.
Further, extrusion device includes motor, lead screw, nut and extrusion piece, and the motor is installed in the installation base outside, and lead screw one end is connected with the motor pivot, and the lead screw other end gets into in the cavity of installation base, is equipped with the nut on the lead screw, nut and extrusion piece fixed connection, thereby the axial displacement that the lead screw passes through the motor effect down makes the extrusion piece along the lead screw extrudees the elastic support piece of installation base, and the light guide plate and the reflecting plate in the place ahead are extruded to elastic support piece atress.
Further, the mounting base comprises two rigid supporting parts and the elastic supporting piece, the rigid supporting parts are provided with fixing clamping grooves, and two ends of the elastic supporting piece are respectively inserted into one fixing clamping groove to be fixed.
Further, a plurality of pressure sensors are arranged between the elastic supporting sheet and the reflecting plate, each pressure sensor can sense whether the pressure of the corresponding area is increased, and the control chip determines whether to start the motor through pressure signals generated by the pressure sensors.
Further, the light emitting device comprises a plurality of led light sources, each led light source is arranged in a through light emitting tube, the light emitting tubes are combined to form a light emitting matrix tube, each light emitting tube can independently move along the axial direction of the light emitting matrix tube, the light emitting tubes corresponding to the expansion parts can be acted when the left side and the right side of the light guide plate are expanded by heating, and the left side and the right side of the light guide plate can always contact the light emitting tubes.
Further, the outer wall of each light-emitting pipe is provided with a limiting protrusion, a reset spring is sleeved outside the light-emitting pipe, two ends of the reset spring are connected between the limiting protrusions and the light source support, and the reset spring helps the light-emitting pipe to reset when the light guide plate contracts.
Further, a plurality of through holes are formed in the light source support, when the light emitting pipe is not extruded, the heat dissipation extending pipe at the end part of the light emitting pipe plugs the through holes, and when the light emitting pipe is extruded, the heat dissipation extending pipe extends out of the through holes to exchange heat with external cold air.
Further, the heat dissipation extension pipe is provided with a plurality of heat dissipation vent holes, and the plurality of heat dissipation vent holes are evenly distributed along the outer wall of the heat dissipation extension pipe.
A method of operating a light guide plate side-entry backlight assembly, comprising the steps of:
when the pressure sensor senses that the pressure value is relative to a set value, the pressure sensor is activated and sends a signal to the control chip; the control chip starts a motor of the pressure sensor setting area, the motor enables the extrusion block to move along the axial direction of the screw rod so as to extrude an elastic supporting plate of the mounting base, the elastic supporting plate is stressed to extrude the light guide plate and the reflecting plate in front, deformation of the light guide plate on the front side and the rear side is avoided or reduced, and the light guide plate is guided to deform on the left side and the right side; when the thermal deformation of the left side and the right side of the light guide plate is enough, the expansion part of the light guide plate pushes the corresponding light outlet pipe to move outwards, and the heat dissipation extension pipe of the light outlet pipe extends out of the through hole to exchange heat with external cold air, so that the backlight assembly is cooled.
The light guide plate side-in type backlight assembly has the following beneficial effects:
(1) The invention effectively controls the heated expansion part of the light guide plate, so that the whole light guide plate can realize the purpose of uniform light guide even if the whole light guide plate expands, and the brightness of the whole display picture of the display panel is ensured to be uniform.
(2) The light is collected by the light emitting pipes at the two sides of the light guide plate, and the light emitting pipes are always contacted with the two sides of the light guide plate, so that even if the two sides of the light guide plate deform, the distance of the light source entering the light guide plate is unchanged, and the brightness uniformity of the light guide plate can be ensured.
(3) The heat dissipation extension pipe of the light outlet pipe can also extend to exchange heat with external cold air, and can effectively cool the backlight assembly.
Drawings
Fig. 1: the invention relates to a structure schematic diagram of a light guide plate side-in type backlight assembly;
fig. 2: the structure of the light-emitting device is schematically shown in the invention;
fig. 3: the light guide plate is heated and expanded to act as a schematic diagram of the light-emitting device;
fig. 4: the heat dissipation structure of the light-emitting device is shown in the schematic diagram;
fig. 5: the pressure sensor is installed in a schematic diagram;
fig. 6: the structure of the extrusion device is schematically shown in the invention;
fig. 7: the installation base structure of the invention is schematically shown.
Reference numerals illustrate:
1-a display panel; 2-a light-diffusing plate; 3-a light guide plate; 31-an expansion section; 4-a reflecting plate; 5-a light emitting device; a 51-led light source; 52-limiting protrusions; 53-a return spring; 54-a heat dissipation extension pipe; 55-a heat dissipation vent; 6, a light emitting matrix tube; 61-light pipe; 7, mounting a base; 71-a pressure sensor; 72-an elastic support sheet; 73-a fixed clamping groove; 8-an extrusion device; 81-a screw rod; 82-a nut; 83-extruding blocks; 84-motor.
Detailed Description
The invention is further described with reference to fig. 1 to 7:
as shown in fig. 1, a light guide plate side-in type backlight assembly includes a display panel 1, a light diffusion plate 2, a light guide plate 3, a reflecting plate 4, a light emitting device 5 and a mounting base 7, wherein the front side of the light guide plate 3 is limited by the light diffusion plate 2, the rear side of the light guide plate 3 is provided with the mounting base 7, the left and right sides of the light guide plate 3 are respectively provided with the light emitting device 5, two ends of the light guide plate 3 are respectively positioned in a light source bracket, the two light emitting devices 5 are respectively installed in the light source bracket, the backlight assembly further includes an extrusion device 8, and the extrusion device 8 extrudes heated expansion parts generated on the front and rear sides of the light guide plate 3, so that the left and right sides of the light guide plate 3 expand and are tightly attached to the light emitting device 5 to ensure the light guiding effect, and meanwhile, parts of the light emitting device 5 extend from the light source bracket to exchange heat with external cold air.
As shown in fig. 2 and 3, the light emitting device 5 includes a plurality of led light sources 51, each led light source 51 is mounted in one through light emitting tube 61, the plurality of light emitting tubes 61 are combined to form the light emitting matrix tube 6, each light emitting tube 61 can move alone along its own axis, and when the left and right sides of the light guide plate 3 are expanded by heat, the corresponding light emitting tube 61 of the expansion portion acts, so that the left and right sides of the light guide plate 3 can always contact the light emitting tube 61, not only the light guide plate 3 of the expansion portion, but also the unexpanded portion.
As shown in fig. 4, the outer wall of each light-emitting tube 61 is provided with a limiting protrusion 52, the outside of the light-emitting tube 61 is sleeved with a reset spring 53, two ends of the reset spring are connected between the limiting protrusions 52 and the light source bracket, and the reset spring helps the light-emitting tube 61 to reset when the light guide plate 3 is contracted.
The light source support is provided with a plurality of through holes, when the light emitting pipe 61 is not extruded, the heat dissipation extension pipe 54 at the end part of the light emitting pipe 61 plugs the through holes, and when the light emitting pipe 61 is extruded, the heat dissipation extension pipe 54 extends out of the through holes to exchange heat with external cold air.
The heat dissipation extension pipe 54 is provided with a plurality of heat dissipation vent holes 55, and the plurality of heat dissipation vent holes 55 are uniformly distributed along the outer wall of the heat dissipation extension pipe 54.
As shown in fig. 5, the number of pressing devices 8 is plural, the same number of areas is set for the reflection plate 4, and each area is adjusted for the light guide plate 3 by one pressing device 8. A plurality of pressure sensors 71 are arranged between the elastic supporting sheet 72 and the reflecting plate 4, each pressure sensor 71 can sense whether the pressure of the corresponding area is increased, and the control chip determines whether to start the motor through pressure signals generated by the pressure sensors.
As shown in fig. 6, the extruding device 8 includes a motor 84, a screw rod 81, a nut 82 and an extruding block 83, the motor 84 is installed outside the installation base 7, one end of the screw rod 81 is connected with a rotating shaft of the motor 84, the other end of the screw rod 81 enters a cavity of the installation base 7, the screw rod 81 is provided with the nut 82, the nut 82 is fixedly connected with the extruding block 83, the screw rod 81 is enabled to move along the axial direction of the screw rod under the action of the motor 84 so as to extrude the elastic supporting piece 72 of the installation base 7, and the elastic supporting piece 72 is stressed to extrude the light guide plate 3 and the reflecting plate 4 in front.
As shown in fig. 7, the mounting base 7 includes two rigid support portions provided with fixing slots 73 and elastic support pieces 72, and both ends of the elastic support pieces 72 are respectively inserted into one of the fixing slots 73 to be fixed.
The side-in type backlight assembly of the light guide plate of the present invention operates as follows:
when the pressure sensor senses that the pressure value is relative to a set value, the pressure sensor is activated and sends a signal to the control chip; the control chip starts a motor of the pressure sensor setting area, the motor enables the extrusion block 83 to move along the axial direction of the screw rod so as to extrude the elastic supporting sheet 72 of the mounting base 7, the elastic supporting sheet 72 is stressed to extrude the front light guide plate 3 and the reflecting plate 4, deformation of the light guide plate 3 on the front side and the rear side is avoided or the deformation of the light guide plate 3 on the front side and the rear side is reduced, and the deformation of the light guide plate 3 on the left side and the right side is guided; when the thermal deformation of the light guide plate 3 on the left and right sides is large enough, the expansion part of the light guide plate pushes the corresponding light outlet pipe 61 to move outwards, and the heat dissipation extension pipe 54 of the light outlet pipe 61 extends out of the through hole to exchange heat with external cold air, so that the backlight assembly is cooled.
Claims (3)
1. The utility model provides a light guide plate side income formula backlight unit, includes display panel (1), light diffusing plate (2), light guide plate (3), reflecting plate (4), lighting device (5) and installation base (7), and light guide plate (3) front side is spacing by light diffusing plate (2), and light guide plate (3) rear side is installation base (7), and light guide plate (3) left and right sides is equipped with a lighting device (5) respectively, and light guide plate (3) both ends are located a light source support respectively, and two lighting device (5) are also installed respectively in one in the light source support, its characterized in that: the device also comprises an extrusion device (8), wherein the extrusion device (8) extrudes heated expansion parts generated on the front side and the rear side of the light guide plate (3), so that the light guide plate (3) expands towards the left side and the right side and is tightly attached to the light-emitting device (5) to ensure the light guide effect, and meanwhile, part of the light-emitting device (5) extends out of the light source bracket to exchange heat with external cold air; the number of the extrusion devices (8) is multiple, the reflection plate (4) is set to be the same in number of areas, and each area is used for adjusting the light guide plate (3) through one extrusion device (8); the extrusion device (8) comprises a motor (84), a screw rod (81), a nut (82) and an extrusion block (83), wherein the motor (84) is arranged outside the installation base (7), one end of the screw rod (81) is connected with a rotating shaft of the motor (84), the other end of the screw rod (81) enters a cavity of the installation base (7), the screw rod (81) is provided with the nut (82), the nut (82) is fixedly connected with the extrusion block (83), the screw rod (81) enables the extrusion block (83) to move along the axial direction of the screw rod under the action of the motor (84) so as to extrude an elastic supporting plate (72) of the installation base (7), and the elastic supporting plate (72) is stressed to extrude a light guide plate (3) and a reflecting plate (4) in front;
the mounting base (7) comprises two rigid supporting parts and the elastic supporting piece (72), the rigid supporting parts are provided with fixing clamping grooves (73), and two ends of the elastic supporting piece (72) are respectively inserted into one fixing clamping groove (73) for fixing; a plurality of pressure sensors (71) are arranged between the elastic supporting sheet (72) and the reflecting plate (4), each pressure sensor (71) can sense whether the pressure of a corresponding area is increased, and the control chip determines whether to start the motor through pressure signals generated by the pressure sensors;
the light emitting device (5) comprises a plurality of led light sources (51), each led light source (51) is arranged in a through light emitting tube (61), the light emitting tubes (61) are combined to form a light emitting matrix tube (6), each light emitting tube (61) can independently move along the axial direction of the light emitting tube, and when the left side and the right side of the light guide plate (3) are heated and expanded, the corresponding light emitting tube (61) acts on the expansion part, so that the left side and the right side of the light guide plate (3) can always contact the light emitting tube (61); the outer wall of each light-emitting tube (61) is provided with a limiting bulge (52), the outside of each light-emitting tube (61) is sleeved with a reset spring (53), two ends of the reset spring are connected between the limiting bulge (52) and the light source bracket, and the reset spring helps the light-emitting tube (61) to reset when the light guide plate (3) is contracted; the light source support is provided with a plurality of through holes, when the light outlet pipe (61) is not extruded, the through holes are blocked by the heat dissipation extension pipe (54) at the end part of the light outlet pipe (61), and when the light outlet pipe (61) is extruded, the heat dissipation extension pipe (54) extends out of the through holes to exchange heat with external cold air.
2. The light guide plate side-entry backlight assembly of claim 1, wherein: the heat dissipation extension pipe (54) is provided with a plurality of heat dissipation vent holes (55), and the plurality of heat dissipation vent holes (55) are evenly distributed along the outer wall of the heat dissipation extension pipe (54).
3. A method of operating the light guide plate side-entry backlight assembly of claim 2, comprising the steps of:
when the pressure sensor senses that the pressure value is relative to a set value, the pressure sensor is activated and sends a signal to the control chip;
the control chip starts a motor of the pressure sensor setting area, the motor enables the extrusion block (83) to move along the axial direction of the screw rod so as to extrude the elastic supporting sheet (72) of the mounting base (7), the elastic supporting sheet (72) is stressed to extrude the front light guide plate (3) and the reflecting plate (4), deformation of the light guide plate (3) on the front side and the rear side is avoided or the deformation of the light guide plate (3) on the front side and the rear side is reduced, and the deformation of the light guide plate (3) on the left side and the right side is guided;
when the thermal deformation of the left side and the right side of the light guide plate (3) is large enough, the expansion part of the light guide plate pushes the corresponding light outlet pipe (61) to move outwards, and the heat dissipation extension pipe (54) of the light outlet pipe (61) extends out of the through hole to exchange heat with external cold air, so that the backlight assembly is cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310185317.6A CN116466427B (en) | 2023-03-01 | 2023-03-01 | Light guide plate side-in type backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310185317.6A CN116466427B (en) | 2023-03-01 | 2023-03-01 | Light guide plate side-in type backlight assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116466427A CN116466427A (en) | 2023-07-21 |
| CN116466427B true CN116466427B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310185317.6A Active CN116466427B (en) | 2023-03-01 | 2023-03-01 | Light guide plate side-in type backlight assembly |
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| CN (1) | CN116466427B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116794761B (en) * | 2023-08-29 | 2023-11-24 | 惠科股份有限公司 | Backlight module and display device |
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| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854860A (en) * | 2005-04-28 | 2006-11-01 | 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 | A light source for LCD back-lit displays utilizing embedded light detectors |
| CN201803229U (en) * | 2010-07-21 | 2011-04-20 | 惠州Tcl璨宇光电有限公司 | Novel LED backlight module group |
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| CN111323964A (en) * | 2018-12-13 | 2020-06-23 | 深圳Tcl新技术有限公司 | Side-in type backlight module |
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| Publication number | Publication date |
|---|---|
| CN116466427A (en) | 2023-07-21 |
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