CN112083603A - Backlight module and electronic equipment - Google Patents
Backlight module and electronic equipment Download PDFInfo
- Publication number
- CN112083603A CN112083603A CN202010995828.0A CN202010995828A CN112083603A CN 112083603 A CN112083603 A CN 112083603A CN 202010995828 A CN202010995828 A CN 202010995828A CN 112083603 A CN112083603 A CN 112083603A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- light
- light emitting
- circuit board
- groove
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides
- G02B6/0001—Light guides specially adapted for lighting devices or systems
- G02B6/0011—Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides 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
- G02B6/0001—Light guides specially adapted for lighting devices or systems
- G02B6/0011—Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides 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
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Abstract
The invention relates to a backlight module and electronic equipment. The backlight module of the invention comprises: a circuit board; the light guide plate is arranged on one side of the circuit board, and a plurality of accommodating grooves which are arranged in an array mode are formed in the surface, close to the circuit board, of the light guide plate; and the light-emitting units are arranged in the accommodating grooves, one light-emitting unit corresponds to one accommodating groove, different light-emitting units correspond to different accommodating grooves, and the light-emitting units are electrically connected with the circuit board. The distance between the LED lamp and the light guide plate of the backlight module is small, and emergent light rays are more uniform.
Description
Technical Field
The invention relates to the field of display, in particular to a backlight module and electronic equipment.
Background
In the conventional backlight module, in order to make the emitted Light more uniform, a backlight source, such as a Light Emitting Diode (LED) lamp, and a Light guide plate are usually disposed at an interval, and need to be spaced at a certain distance. The larger the spacing distance between the LED lamp and the light guide plate is, the larger the thickness of the display device is, and the more unfavorable the ultra-thinning of the display device is; the smaller the spacing distance between the LED lamp and the light guide plate is, the smaller the thickness of the display device is, and the more favorable the ultrathin display device is, however, the smaller the spacing distance between the LED lamp and the light guide plate is, the more uneven the light emitted by the backlight module is, and the display effect of the display device can be influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a backlight module, in which the distance between the LED lamp and the light guide plate is small, and the emitted light is more uniform.
In addition, the invention also provides electronic equipment.
The embodiment of the invention provides a backlight module, which comprises:
a circuit board;
the light guide plate is arranged on one side of the circuit board, and a plurality of accommodating grooves which are arranged in an array mode are formed in the surface, close to the circuit board, of the light guide plate; and
the light-emitting units are arranged in the accommodating grooves, one light-emitting unit corresponds to one accommodating groove, different light-emitting units correspond to different accommodating grooves, and the light-emitting units are electrically connected with the circuit board.
Further, the light emitting unit includes at least one light emitting diode.
Further, the at least one light emitting diode includes at least a red light emitting diode, a green light emitting diode, and a blue light emitting diode.
Further, the at least one light emitting diode comprises a white light emitting diode; or, the at least one light emitting diode includes a red light emitting diode, a green light emitting diode, a blue light emitting diode, and a white light emitting diode.
Further, the light emitting diode has five light emitting surfaces.
Further, the containing groove comprises any one of a hemisphere shape, a semi-ellipsoid shape, a prism shape, a cylinder shape and a frustum pyramid shape.
Furthermore, the accommodating groove comprises a first groove position and a second groove position communicated with the first groove position, the first groove position is adjacent to the circuit board, the second groove position deviates from the circuit board, the first groove position is in a round table shape or a cylindrical shape, and the second groove position is at least one arc groove communicated with each other.
Further, at least one of the surface of the light guide plate adjacent to the circuit board and the surface of the light guide plate facing away from the circuit board is provided with a rough structure.
Furthermore, a plurality of diffusion parts arranged in an array are arranged on the surface of the light guide plate, which is away from the circuit board, the diffusion parts are arranged corresponding to the accommodating grooves, and each accommodating groove corresponds to at least one diffusion part.
Based on the same inventive concept, the present invention also provides an electronic device, comprising:
a liquid crystal display panel; and
in the backlight module, the backlight module is arranged on one side of the liquid crystal display panel and provides backlight for the liquid crystal display panel.
Therefore, the backlight module is provided with the accommodating groove on the light guide plate, and the light-emitting unit is arranged in the accommodating groove, so that the optical distance of the backlight module is 0, namely the distance from the light-emitting unit to the light guide plate is zero, the thickness of the backlight module is reduced, and meanwhile, the light emitted from the backlight module is more uniform as the light-emitting unit enters the light guide plate from various angles. In addition, the light-emitting unit is arranged in the accommodating groove, so that the dustproof and waterproof performance of the backlight module can be enhanced, and the reliability of a product is improved.
Drawings
To more clearly illustrate the structural features and effects of the present invention, a detailed description is given below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a judge unit according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The backlight module 100 is used for providing a Liquid Crystal Display (LCD) panel with sufficient brightness and a light source with uniform distribution, so that the LCD panel can normally Display images. The backlight module 100 may be divided into an edge type backlight module and a direct type (bottom backlight type) backlight module according to the light source distribution position.
The Optical Distance (OD value) refers to a Distance from the LED lamp of the direct-type backlight module 100 to the light guide plate. The smaller the OD value, the lower the thickness of the backlight module 100, and the larger the OD value, the thicker the thickness of the backlight module.
Referring to fig. 1, a backlight module 100 according to an embodiment of the present invention includes:
a circuit board 10;
the light guide plate 30 is arranged on one side of the circuit board 10, and a plurality of accommodating grooves 31 arranged in an array are formed in the surface, adjacent to the circuit board 10, of the light guide plate 30; and
the light emitting units 50 are disposed in the accommodating grooves 31, one light emitting unit 50 is disposed corresponding to one accommodating groove 31, different light emitting units 50 correspond to different accommodating grooves 31, and the light emitting units 50 are electrically connected to the circuit board 10.
The backlight module 100 of the present invention has the receiving groove 31 disposed on the light guide plate 30, and the light emitting unit 50 is disposed in the receiving groove 31, such that the optical distance of the backlight module is 0, i.e. the distance from the light emitting unit 50 to the light guide plate 30 is zero, thereby reducing the thickness of the backlight module 100, and meanwhile, since the light emitting unit 50 enters the light guide plate 30 from various angles, the light emitted from the backlight module 100 is more uniform. In addition, the light emitting unit 50 is disposed in the receiving groove 31, so as to enhance the dustproof and waterproof performance of the backlight module 100 and improve the reliability of the product.
Optionally, in some embodiments, the light guide plate 30 and the circuit board 10 may be fixed by an adhesive such as glue, and it is not necessary to package the light emitting unit 50 with a transparent packaging adhesive, and it is not necessary to use a supporting structure to fix components of the backlight module 100 such as the circuit board 10 and the light guide plate 30, which not only simplifies the manufacturing process and improves the production efficiency, but also simplifies the structure of the backlight module 100.
Referring to fig. 2, optionally, the light emitting unit 50 includes at least one light emitting diode 51, and the light emitting diodes 51 are disposed in the accommodating groove 31 at intervals. Specifically, the light emitting unit 50 may be composed of one light emitting diode 51, two light emitting diodes 51, three light emitting diodes 51, four light emitting diodes 51, five light emitting diodes 51, six light emitting diodes 51, or more light emitting diodes.
Optionally, in some embodiments, the light emitting unit 50 has five light emitting surfaces, that is, the light emitted by the light emitting unit 50 can be emitted from the five light emitting surfaces. Therefore, the light emitted from the light emitting unit 50 enters the light guide plate 30 from more angles, and the light mixing effect of the light in the light guide plate 30 is improved, so that the light emitted from the backlight module 100 is more uniform.
Specifically, in some embodiments, each of the light emitting diodes 51 is a five-sided light emitting diode, and the plurality of light emitting diodes 51 of the same light emitting unit 50 are arranged in an array in one accommodating groove 31.
In other embodiments, the leds emit light from a single side, and the leds are designed at an angle such that the light emitting unit 50 can emit light from five sides. For example, one light emitting unit 30 has five light emitting diodes 51, and the five light emitting diodes 51 are surrounded to form a light emitting unit with five light emitting surfaces, so that the light emitting unit 50 in one accommodating groove 31 can emit light from five light emitting surfaces, and the emitted light can enter the light guide plate 30 from more angles, so as to improve the uniformity of the emitted light of the backlight module 100.
Optionally, in some embodiments, the at least one light emitting diode 51 at least includes a red light emitting diode 51, a green light emitting diode 51 and a blue light emitting diode 51, and the light emitted from the red light emitting diode 51, the green light emitting diode 51 and the blue light emitting diode 51 of each light emitting unit 50 is mixed to emit white light. The red light emitting diode 51 refers to a light emitting diode capable of emitting red light, the green light emitting diode 51 refers to a light emitting diode capable of emitting green light, and the blue light emitting diode 51 refers to a light emitting diode capable of emitting blue light. The red led 51, the green led 51 and the blue led 51 are disposed in a single receiving groove 31, so that the backlight color gamut can be improved and the color rendering effect can be improved.
Optionally, in some embodiments, at least one light emitting diode 51 may be a white light emitting diode 51.
Optionally, in some embodiments, the at least one light emitting diode 51 includes a red light emitting diode 51, a green light emitting diode 51, a blue light emitting diode 51, and a white light emitting diode 51. The white light emitting diode 51 refers to a light emitting diode that can emit white light. The single accommodating groove 31 is provided with the light emitting diodes of red light, green light, blue light and white light, so that the color rendering effect can be improved, and the color saturation of the display can be improved.
Referring to fig. 1 and 3, in some embodiments, the accommodating groove 31 includes, but is not limited to, a hemispherical shape, a semi-ellipsoidal shape, a prismatic shape, a cylindrical shape, and a truncated pyramid shape. This can make the light emitted from the light emitting unit 50 enter the light guide plate 30 from more angles, and improve the uniformity of the light emitted from the backlight module 100. For example, in the embodiment of fig. 1, the accommodating groove 31 is prism-shaped; in the embodiment of fig. 3, the accommodating groove 31 is semi-ellipsoidal.
Referring to fig. 4 and 5, in some embodiments, the accommodating groove 31 includes a first groove 311 and a second groove 313 communicated with the first groove 311, the first groove 311 is disposed adjacent to the circuit board 10, the second groove 313 is disposed away from the circuit board 10, the first groove 311 is truncated cone-shaped or cylindrical, and the second groove 313 is at least one arc-shaped groove communicated with each other. Specifically, the second slot 313 may be formed by connecting one arc-shaped slot, two arc-shaped slots, three arc-shaped slots, or four arc-shaped slots. By providing the second slot 313 with a plurality of arc-shaped structures, the light intensity directly above the slot can be adjusted, and the light intensity distribution around the slot can be changed by changing the angle of the inclined surface of the first slot 311. Therefore, the light emitted from the light emitting unit 50 can enter the light guide plate 30 from more angles, and the uniformity of the light emitted from the backlight module 100 can be improved. In the embodiment of fig. 4, the first slot 311 is truncated cone-shaped and the second slot 313 is circular arc-shaped. In the embodiment of fig. 5, the first slot 311 is a truncated cone, and the second slot 313 has a plurality of circular arcs communicating with each other.
Referring to fig. 1 again, in some embodiments, at least one of the surface of the light guide plate 30 adjacent to the circuit board 10 and the surface of the light guide plate 30 facing away from the circuit board 10 is provided with a rough structure. That is, at least one of the surface of the light guide plate 30 adjacent to the circuit board 10 and the surface of the light guide plate 30 facing away from the circuit board 10 is roughened. Alternatively, only the surface of the light guide plate 30 adjacent to the circuit board 10 may be roughened; only the surface of the light guide plate 30 away from the circuit board 10 may be roughened; the surface of the light guide plate 30 adjacent to the circuit board 10 and the surface of the light guide plate 30 away from the circuit board 10 may be roughened. The surface of the light guide plate 30 is roughened, so that light entering the light guide plate 30 is diffused for multiple times, and the light emitted from the backlight module 100 is uniform.
Referring to fig. 6, in some embodiments, the surface of the light guide plate 30 facing away from the circuit board 10 is provided with a plurality of diffusion parts 33 arranged in an array, the diffusion parts 33 are disposed corresponding to the receiving grooves 31, and each receiving groove 31 corresponds to at least one diffusion part 33. Specifically, the diffusion 33 may be a protrusion. The diffuser 33 is disposed on the surface of the light guide plate 30 away from the circuit board 10, so that the angle of the light emitted from the surface of the light guide plate 30 away from the circuit board 10 is larger, and the light emitted from the backlight module 100 is uniform.
Referring to fig. 7, in some embodiments, the backlight module 100 of the present invention further includes a diffusion sheet 70. The diffusion sheet 70 is disposed on a surface of the light guide plate 35 facing away from the circuit board 10, and is used for diffusing light emitted from the light guide plate 30, such as visible light or white light, so that the light more uniformly exits the diffusion sheet 70.
Referring to fig. 8, in some embodiments, the backlight module 100 further includes a brightness enhancement film 90. The brightness enhancement sheet 90 is disposed on a surface of the diffusion sheet 70 facing away from the light guide plate 30, and is used for changing the direction of the light, such as visible light or white light, emitted from the light guide plate 30, so that the light, such as visible light or white light, emitted from the light guide plate 30 is irradiated onto a display screen, such as a Liquid Crystal Display (LCD) screen.
Referring to fig. 9, an embodiment of the invention further provides an electronic device 200, where the electronic device 200 includes:
a liquid crystal display panel 210; and
in the backlight module 100 of the embodiment of the invention, the backlight module 100 is disposed at one side of the liquid crystal display panel 210 to provide backlight for the liquid crystal display panel 210.
Specifically, the liquid crystal display panel 210 includes a display surface and a non-display surface which are opposite to each other, the backlight module 100 is disposed on the non-display surface side of the liquid crystal display panel 210, and the circuit board 10 is disposed away from the liquid crystal display panel 210.
The electronic device 200 of the present invention includes, but is not limited to, a liquid crystal display, a computer, a notebook computer, a tablet computer, a mobile phone, an intelligent bracelet, an intelligent watch, an intelligent glasses, an electronic book reader, a portable multimedia player, an intelligent lock, and other devices with a liquid crystal display panel.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A backlight module is characterized in that the backlight module comprises:
a circuit board;
the light guide plate is arranged on one side of the circuit board, and a plurality of accommodating grooves which are arranged in an array mode are formed in the surface, close to the circuit board, of the light guide plate; and
the light-emitting units are arranged in the accommodating grooves, one light-emitting unit corresponds to one accommodating groove, different light-emitting units correspond to different accommodating grooves, and the light-emitting units are electrically connected with the circuit board.
2. A backlight module according to claim 1, wherein the light emitting unit comprises at least one light emitting diode.
3. The backlight module according to claim 2, wherein the at least one LED comprises a red LED, a green LED and a blue LED.
4. A backlight module according to claim 2, wherein the at least one led comprises a white led; or, the at least one light emitting diode includes a red light emitting diode, a green light emitting diode, a blue light emitting diode, and a white light emitting diode.
5. The backlight module as claimed in claim 2, wherein the light emitting diodes have five light emitting surfaces.
6. The backlight module as claimed in claim 1, wherein the receiving groove comprises any one of a hemispherical shape, a semi-ellipsoidal shape, a prismatic shape, a cylindrical shape, and a truncated pyramid shape.
7. The backlight module according to claim 1, wherein the receiving groove comprises a first groove and a second groove communicated with the first groove, the first groove is disposed adjacent to the circuit board, the second groove is disposed away from the circuit board, the first groove is truncated cone-shaped or cylindrical, and the second groove is at least one arc-shaped groove communicated with each other.
8. A backlight module according to claim 1, wherein at least one of the surface of the light guide plate adjacent to the circuit board and the surface of the light guide plate facing away from the circuit board is provided with a roughness structure.
9. The backlight module according to claim 1, wherein a plurality of diffusion portions arranged in an array are disposed on a surface of the light guide plate facing away from the circuit board, the diffusion portions are disposed corresponding to the receiving grooves, and each receiving groove corresponds to at least one diffusion portion.
10. An electronic device, characterized in that the electronic device comprises:
a liquid crystal display panel; and
the backlight module as claimed in any one of claims 1-9, wherein the backlight module is disposed at one side of the liquid crystal display panel to provide backlight for the liquid crystal display panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995828.0A CN112083603A (en) | 2020-09-21 | 2020-09-21 | Backlight module and electronic equipment |
| PCT/CN2021/119458 WO2022057937A1 (en) | 2020-09-21 | 2021-09-18 | Substrate, and led light source assembly and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995828.0A CN112083603A (en) | 2020-09-21 | 2020-09-21 | Backlight module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112083603A true CN112083603A (en) | 2020-12-15 |
Family
ID=73738532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995828.0A Pending CN112083603A (en) | 2020-09-21 | 2020-09-21 | Backlight module and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112083603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057937A1 (en) * | 2020-09-21 | 2022-03-24 | 深圳市聚飞光电股份有限公司 | Substrate, and led light source assembly and manufacturing method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325959A (en) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Works Ltd | Liquid crystal back light device |
| CN201757335U (en) * | 2010-07-28 | 2011-03-09 | 创维液晶器件(深圳)有限公司 | LED backlight module, liquid crystal display and display terminal |
| CN103672568A (en) * | 2012-09-04 | 2014-03-26 | 展晶科技(深圳)有限公司 | Direct type backlight module |
| CN104698828A (en) * | 2015-03-17 | 2015-06-10 | 深圳市华星光电技术有限公司 | Intelligent wrist watch and liquid crystal display |
| CN107315277A (en) * | 2017-07-03 | 2017-11-03 | 京东方科技集团股份有限公司 | Backlight module, display device |
| CN110114713A (en) * | 2016-11-14 | 2019-08-09 | 首尔半导体株式会社 | Display device and its back light unit |
-
2020
- 2020-09-21 CN CN202010995828.0A patent/CN112083603A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004325959A (en) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Works Ltd | Liquid crystal back light device |
| CN201757335U (en) * | 2010-07-28 | 2011-03-09 | 创维液晶器件(深圳)有限公司 | LED backlight module, liquid crystal display and display terminal |
| CN103672568A (en) * | 2012-09-04 | 2014-03-26 | 展晶科技(深圳)有限公司 | Direct type backlight module |
| CN104698828A (en) * | 2015-03-17 | 2015-06-10 | 深圳市华星光电技术有限公司 | Intelligent wrist watch and liquid crystal display |
| CN110114713A (en) * | 2016-11-14 | 2019-08-09 | 首尔半导体株式会社 | Display device and its back light unit |
| CN107315277A (en) * | 2017-07-03 | 2017-11-03 | 京东方科技集团股份有限公司 | Backlight module, display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057937A1 (en) * | 2020-09-21 | 2022-03-24 | 深圳市聚飞光电股份有限公司 | Substrate, and led light source assembly and manufacturing method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1705514B1 (en) | Light emitting assembly, backlight unit and display having the same | |
| US7422357B1 (en) | Optical plate and backlight module using the same | |
| US8641219B1 (en) | High efficiency rear lit waveguide | |
| US7670020B2 (en) | Optical plate and backlight module using the same | |
| KR20060107923A (en) | Light emitting panel | |
| EP2426399A1 (en) | Illuminating device, display device, and television receiver | |
| US7740374B2 (en) | Optical plate and backlight module using the same | |
| US20120057097A1 (en) | Lighting device, display device and television receiver | |
| US20070047219A1 (en) | Direct-lit backlight having light sources with bifunctional diverters | |
| JP2013143217A (en) | Lighting device, display device and television receiver | |
| US11022840B2 (en) | Displays with direct-lit backlight units | |
| TWM466278U (en) | Thinning LED direct-type backlight module | |
| EP2530375A1 (en) | Light guide design for edge-illumination in a backlight unit | |
| EP3532894A1 (en) | Displays with direct-lit backlight units | |
| KR20160051292A (en) | lens,light emitting apparatus including the lens, and backlight unit including the apparatus | |
| US7837373B2 (en) | Optical plate having encircling protrusions and elongated V-shaped protrusions and backlight module using the same | |
| US20060245210A1 (en) | Backlight module and liquid crystal display having same | |
| CN112083603A (en) | Backlight module and electronic equipment | |
| US20120099028A1 (en) | Lighting device, display device and television receiver | |
| US7594745B2 (en) | Optical plate and backlight module using the same | |
| US20130135536A1 (en) | Illuminating device, display device and television receiving device | |
| JP2013182854A (en) | Lighting device and display device with the same | |
| KR101991124B1 (en) | Led array unit, direct type of backlight unit having the same, and display device having the backlight unit | |
| KR20120135651A (en) | Light guide panel and liquid crystal display device having the same | |
| CN109164638B (en) | Light emitting module, manufacturing method thereof and direct type backlight source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |