CN111734983A - Optical module for ultra-low OD (optical density) regional dimming - Google Patents
Optical module for ultra-low OD (optical density) regional dimming Download PDFInfo
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- CN111734983A CN111734983A CN202010642088.2A CN202010642088A CN111734983A CN 111734983 A CN111734983 A CN 111734983A CN 202010642088 A CN202010642088 A CN 202010642088A CN 111734983 A CN111734983 A CN 111734983A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 239000003292 glue Substances 0.000 claims abstract description 25
- 238000009792 diffusion process Methods 0.000 claims description 26
- 239000012528 membrane Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 11
- 210000000439 stratum lucidum Anatomy 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 abstract description 21
- 238000002310 reflectometry Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 18
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000010030 laminating Methods 0.000 description 7
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 5
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
- F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
- F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Led Device Packages (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses an optical module for dimming in an ultralow OD region, which is characterized in that through the design of a transparent layer and a white glue layer, the white glue layer has low transmittance to a light source, a small amount of light is transmitted from the top of the white glue layer, most of the light can be transmitted out through four transparent plates, the light emitting angle is more than or equal to 270 degrees, so that the side surface of the transparent layer emits light, a secondary optical lens is not required to be added, meanwhile, an LED wafer is arranged in the transparent layer, the LED wafer has a small volume and a large light emitting angle, and is arranged on a PCB (printed circuit board) with high reflectivity, and. Through the design of circular silk screen printing or square silk screen printing, can change the silk screen printing shape on PCB board surface according to the light type, satisfy the adjustment of looking the effect, a plurality of bases are rectangle array form and set up on the PCB board, need not add the high reflectivity that reflection paper can guarantee the PCB board on the PCB board.
Description
Technical Field
The invention relates to the technical field of optical modules, in particular to an optical module for ultra-low OD regional dimming.
Background
At present, the major stream of direct type quantum dot backlight modules on the market is SMD blue light LEDs with secondary optical lenses and quantum films, so that the wide color gamut target is realized, but the OD value is 18-35 mm, so that the OD value of the whole optical module is high. Meanwhile, the visual effect of the existing optical module can not be adjusted, the reflectivity can be ensured only by adding reflective paper on a PCB, and meanwhile, the wide color gamut, high heat dissipation, ultralow OD and high-uniformity visual effect target can not be ensured.
Disclosure of Invention
The invention aims to provide an optical module for ultra-low OD area dimming, which solves the following technical problems: (1) through the design of the transparent layer and the white glue layer, the white glue layer has low transmittance to a light source, a small amount of light is transmitted from the top of the white glue layer, most of light can be transmitted out through the four transparent plates, the light emitting angle is larger than or equal to 270 degrees, so that the side of the transparent layer emits light, no secondary optical lens is required to be added, meanwhile, the LED wafer is arranged in the transparent layer, the size of the LED wafer is small, the light emitting angle is large, the LED wafer is distributed on a high-reflectivity PCB (printed circuit board), the goal of OD5mm is realized, and the technical problem that the optical module in the prior art needs to be; (2) through the design of circular silk-screen or square silk-screen, the silk-screen shape of the surface of the PCB can be changed according to the light type, and the technical problem that the visual effect of an optical module in the prior art cannot be adjusted is solved; (3) be rectangle array form through a plurality of bases and set up on the PCB board, through the laminating design of diffusion barrier, quantum membrane, complex film, realize wide colour gamut, high heat dissipation, ultra-low OD, high even visual effect target, solve and need add reflection paper among the prior art on the PCB board and just can guarantee the reflectivity, can't guarantee wide colour gamut, high heat dissipation, ultra-low OD, high even visual effect target simultaneously.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an optical module of regional dimming of ultralow OD, includes PCB board, diffusion barrier, quantum membrane, complex film, the quantum membrane sets up in the diffusion barrier top, the complex film sets up in the quantum membrane top, be provided with a plurality of bases on the PCB board, install the LED wafer on the base, install the stratum lucidum on the base, the LED wafer sets up in the stratum lucidum, be provided with the white glue layer on the stratum lucidum, white glue layer top fixed connection diffusion barrier lower surface.
Furthermore, the upper surface of the diffusion film is attached to the lower surface of the quantum film, the upper surface of the quantum film is attached to the lower surface of the composite film, and the quantum film is arranged between the diffusion film and the composite film.
Furthermore, two connecting seats are installed at the bottom of the base, the two connecting seats are installed on two sides of the bottom of the base respectively, and the base is fixed on the upper surface of the PCB through the two connecting seats.
Furthermore, a plurality of bases are arranged on the PCB in a rectangular array shape, and the LED wafers are arranged in the middle of the tops of the bases.
Furthermore, the transparent layer comprises four transparent plates, the four transparent plates are respectively arranged at the side positions of the four positions of the upper surface of the base and fixedly connected with each other, and the top of each transparent plate is fixed at the bottom of the white glue layer.
Furthermore, four circular silk screens are arranged on the outer side of the mounting position of the PCB upper surface base, and the four circular silk screens are distributed on the outer side of the base in equal radian.
Furthermore, the upper surface of the PCB is provided with a plurality of square silk screen printing, the square silk screen printing corresponds to the bases one by one, and the bases are arranged on the square silk screen printing.
The invention has the beneficial effects that:
according to the optical module for dimming in the ultra-low OD region, due to the design of the transparent layer and the white glue layer, the white glue layer has low transmittance to a light source, a small amount of light is transmitted from the top of the white glue layer, most of the light can be transmitted out through the four transparent plates, the light emitting angle is larger than or equal to 270 degrees, so that the side face of the transparent layer emits light, a secondary optical lens is not required to be added, meanwhile, the LED wafer is arranged in the transparent layer, the size of the LED wafer is small, the light emitting angle is large, and the LED wafer is distributed on a PCB (printed circuit board). Through the design of circular silk screen printing or square silk screen printing, can change the silk screen printing shape on PCB board surface according to the light type, satisfy the adjustment of looking the effect, a plurality of bases are the rectangle array form and set up on the PCB board, the high reflectivity that can guarantee the PCB board need not add the reflection paper on the PCB board, quantum lower surface is connected in diffusion barrier upper surface laminating, quantum lower surface is connected in quantum membrane upper surface laminating, through the diffusion barrier, the quantum membrane, the laminating design of complex film, realize wide colour gamut, high heat dissipation, ultralow OD, high even target of looking the effect.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an ultra-low OD local dimming optical module according to the present invention;
FIG. 2 is a view of the mounting of an LED chip of the present invention;
FIG. 3 is an installation view of the circular screen printing of the present invention;
FIG. 4 is an installation view of the square screen printing of the present invention.
In the figure: 1. a PCB board; 2. a diffusion membrane; 3. a quantum film; 4. compounding film; 5. a base; 6. a connecting seat; 7. an LED wafer; 8. a transparent layer; 81. a transparent plate; 9. a white glue layer; 10. circular silk screen printing; 11. and (6) square silk screen printing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to FIGS. 1-4
Example 1
The invention relates to an optical module for dimming in an ultralow OD region, which comprises a PCB (printed Circuit Board) 1, a diffusion film 2, a quantum film 3 and a composite film 4, wherein the quantum film 3 is arranged above the diffusion film 2, the composite film 4 is arranged above the quantum film 3, the PCB 1 is provided with a plurality of bases 5, LED wafers 7 are arranged on the bases 5, transparent layers 8 are arranged on the bases 5, the LED wafers 7 are arranged in the transparent layers 8, white glue layers 9 are arranged on the transparent layers 8, and the tops of the white glue layers 9 are fixedly connected with the lower surface of the diffusion film 2.
Specifically, the upper surface of the diffusion film 2 is attached to the lower surface of the quantum film 3, the upper surface of the quantum film 3 is attached to the lower surface of the composite film 4, and the quantum film 3 is arranged between the diffusion film 2 and the composite film 4. Two connecting seats 6 are installed at the bottom of the base 5, the two connecting seats 6 are respectively installed at two sides of the bottom of the base 5, and the base 5 is fixed on the upper surface of the PCB board 1 through the two connecting seats 6. A plurality of bases 5 are arranged on the PCB 1 in a rectangular array shape, and the LED wafers 7 are arranged in the middle of the tops of the bases 5. The transparent layer 8 comprises four transparent plates 81, the four transparent plates 81 are respectively installed at the side positions of the four positions of the upper surface of the base 5, the adjacent transparent plates 81 are fixedly connected, and the top of each transparent plate 81 is fixed at the bottom of the corresponding white glue layer 9. Four circular silk screen printing 10 are arranged on the outer side of the mounting position of the base 5 on the upper surface of the PCB 1, and the four circular silk screen printing 10 are distributed on the outer side of the base 5 in an equal radian mode. The transparent layer 8 is mainly a high refractive index resin material. The LED chip 7 is GaN blue light, and emits light as a whole. The base 5 is made of a BT resin-based copper-clad plate, so that the heat dissipation is high, and the temperature resistance is good.
Example 2
The invention relates to an optical module for dimming in an ultralow OD region, which comprises a PCB (printed Circuit Board) 1, a diffusion film 2, a quantum film 3 and a composite film 4, wherein the quantum film 3 is arranged above the diffusion film 2, the composite film 4 is arranged above the quantum film 3, the PCB 1 is provided with a plurality of bases 5, LED wafers 7 are arranged on the bases 5, transparent layers 8 are arranged on the bases 5, the LED wafers 7 are arranged in the transparent layers 8, white glue layers 9 are arranged on the transparent layers 8, and the tops of the white glue layers 9 are fixedly connected with the lower surface of the diffusion film 2.
Specifically, the upper surface of the diffusion film 2 is attached to the lower surface of the quantum film 3, the upper surface of the quantum film 3 is attached to the lower surface of the composite film 4, and the quantum film 3 is arranged between the diffusion film 2 and the composite film 4. Two connecting seats 6 are installed at the bottom of the base 5, the two connecting seats 6 are respectively installed at two sides of the bottom of the base 5, and the base 5 is fixed on the upper surface of the PCB board 1 through the two connecting seats 6. A plurality of bases 5 are arranged on the PCB 1 in a rectangular array shape, and the LED wafers 7 are arranged in the middle of the tops of the bases 5. The transparent layer 8 comprises four transparent plates 81, the four transparent plates 81 are respectively installed at the side positions of the four positions of the upper surface of the base 5, the adjacent transparent plates 81 are fixedly connected, and the top of each transparent plate 81 is fixed at the bottom of the corresponding white glue layer 9. The upper surface of the PCB board 1 is provided with a plurality of square silk screen printing 11, the square silk screen printing 11 corresponds to the bases 5 one by one, the bases 5 are arranged on the square silk screen printing 11, and the transparent layer 8 is mainly made of high-refractive-index resin materials. The LED chip 7 is GaN blue light, and emits light as a whole. The base 5 is made of a BT resin-based copper-clad plate, so that the heat dissipation is high, and the temperature resistance is good.
Referring to fig. 1-4, the operation of the ultra-low OD local dimming optical module of the present embodiment is as follows:
through the design of stratum lucidum 8 and white glue layer 9, white glue layer 9 is lower to the light source transmissivity, a small amount of light that passes through in white glue layer top, most light can pass through four transparent plates and see out, luminous angle is greater than or equal to 270 for stratum lucidum 8 side light-emitting need not to add secondary optical lens, LED wafer 7 sets up in stratum lucidum 8 simultaneously, LED wafer 7 is small, luminous angle is big, arrange on the PCB board 1 of high reflectivity, realize OD5 mm's target. Through the design of circular silk screen printing 10 or square silk screen printing 11, can change the silk screen printing shape on PCB board surface according to the light type, satisfy the adjustment of seeing the effect, a plurality of bases 5 are the rectangular array form and set up on PCB board 1, need not add the high reflectivity that the PCB board can be guaranteed to the reflection paper on PCB board 1, the 3 lower surfaces of quantum membrane are connected in the laminating of 2 upper surfaces of diffusion barrier, the 4 lower surfaces of complex film are connected in the laminating of 3 upper surfaces of quantum membrane, through diffusion barrier 2, quantum membrane 3, the laminating design of complex film 4, realize wide colour gamut, high heat dissipation, the ultra-low OD, the target is looked to high even.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. The utility model provides an optical module of regional dimming of ultralow OD, its characterized in that, includes PCB board (1), diffusion barrier (2), quantum membrane (3), complex film (4), quantum membrane (3) set up in diffusion barrier (2) top, complex film (4) set up in quantum membrane (3) top, be provided with a plurality of bases (5) on PCB board (1), install LED wafer (7) on base (5), install stratum lucidum (8) on base (5), LED wafer (7) set up in stratum lucidum (8), be provided with on stratum lucidum (8) white glue layer (9), white glue layer (9) top fixed connection diffusion barrier (2) lower surface.
2. The optical module of claim 1, wherein the upper surface of the diffusion film (2) is attached to the lower surface of the quantum film (3), the upper surface of the quantum film (3) is attached to the lower surface of the composite film (4), and the quantum film (3) is disposed between the diffusion film (2) and the composite film (4).
3. The optical module of claim 1, wherein two connecting sockets (6) are mounted at the bottom of the base (5), the two connecting sockets (6) are respectively mounted at two sides of the bottom of the base (5), and the base (5) is fixed on the upper surface of the PCB (1) through the two connecting sockets (6).
4. The ultra-low OD area dimming optical module according to claim 1, wherein the plurality of bases (5) are disposed on the PCB (1) in a rectangular array, and the LED chip (7) is mounted on the bases (5) at a middle position on the top thereof.
5. The ultra-low OD area dimming optical module according to claim 1, wherein the transparent layer (8) comprises four transparent plates (81), the four transparent plates (81) are respectively mounted at four side positions on the upper surface of the base (5), adjacent transparent plates (81) are fixedly connected, and the top of the transparent plate (81) is fixed at the bottom of the white glue layer (9).
6. The ultra-low OD zone dimming optical module according to claim 1, wherein four circular silkscreens (10) are arranged outside the installation position of the base (5) on the upper surface of the PCB (1), and the four circular silkscreens (10) are distributed outside the base (5) in an equal radian manner.
7. The ultra-low OD zone dimming optical module as claimed in claim 1, wherein the PCB (1) is provided with a plurality of square silk screens (11) on the upper surface, the plurality of square silk screens (11) correspond to the plurality of bases (5) one by one, and the bases (5) are arranged on the square silk screens (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642088.2A CN111734983A (en) | 2020-07-06 | 2020-07-06 | Optical module for ultra-low OD (optical density) regional dimming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642088.2A CN111734983A (en) | 2020-07-06 | 2020-07-06 | Optical module for ultra-low OD (optical density) regional dimming |
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| Publication Number | Publication Date |
|---|---|
| CN111734983A true CN111734983A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010642088.2A Pending CN111734983A (en) | 2020-07-06 | 2020-07-06 | Optical module for ultra-low OD (optical density) regional dimming |
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| US20180120639A1 (en) * | 2016-11-02 | 2018-05-03 | Innolux Corporation | Display device |
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| CN109375421A (en) * | 2018-12-19 | 2019-02-22 | 惠州市华星光电技术有限公司 | Liquid crystal display |
| CN109633792A (en) * | 2018-12-18 | 2019-04-16 | 广东晶科电子股份有限公司 | A kind of composite membrane reducing blue light harm, preparation process and backlight module |
| CN110673391A (en) * | 2019-09-12 | 2020-01-10 | 武汉华星光电技术有限公司 | Backlight module |
| CN210402971U (en) * | 2019-07-04 | 2020-04-24 | 深圳市兆驰节能照明股份有限公司 | Four-side light emitting source and backlight module |
| CN212456442U (en) * | 2020-07-06 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical module for ultra-low OD (optical density) regional dimming |
-
2020
- 2020-07-06 CN CN202010642088.2A patent/CN111734983A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205670224U (en) * | 2016-06-03 | 2016-11-02 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| US20180120639A1 (en) * | 2016-11-02 | 2018-05-03 | Innolux Corporation | Display device |
| CN107132693A (en) * | 2017-05-10 | 2017-09-05 | 南通天鸿镭射科技有限公司 | A kind of quantum dot fluorescence screen |
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| CN212456442U (en) * | 2020-07-06 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical module for ultra-low OD (optical density) regional dimming |
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