CN114624810A - Backlight unit light source inclined touch screen - Google Patents
Backlight unit light source inclined touch screen Download PDFInfo
- Publication number
- CN114624810A CN114624810A CN202210530833.3A CN202210530833A CN114624810A CN 114624810 A CN114624810 A CN 114624810A CN 202210530833 A CN202210530833 A CN 202210530833A CN 114624810 A CN114624810 A CN 114624810A
- Authority
- CN
- China
- Prior art keywords
- light
- positioning
- light source
- guide plate
- light guide
- 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.)
- Granted
Links
Images
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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
-
- 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
Landscapes
- 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 relates to a touch screen with an inclined backlight module light source, which comprises a backlight module and a touch display module, wherein the touch display module is arranged above the backlight module, the backlight module comprises a bottom cover, a top cover and a light source body, the bottom of the bottom cover is provided with a bottom cover cavity, a light reflecting plate and a light guide plate are arranged in the bottom cover cavity, the light guide plate is provided with a top surface, a bottom surface and an inclined light inlet surface, the light source body comprises a circuit board, LED light sources and a positioning optical block, a plurality of LED light sources are covered in the positioning optical block, the positioning optical block is provided with a light source cavity, an optical lens unit is arranged in the light source cavity, the positioning optical block is provided with a light inlet surface, an outer positioning surface and an inner positioning surface, wherein the light inlet surface is positioned at one side of the optical lens unit, and the light inlet surface is butted with the inclined light inlet surface of the light guide plate.
Description
Technical Field
The present invention relates to a touch screen, and more particularly, to a touch screen with a light source of a backlight module of the touch screen being tilted.
Background
The backlight module is one of the key components of the display touch panel. The function of the device is to provide sufficient light source with uniform brightness and distribution, so that the device can normally display images. The backlight module is a light source located behind the display touch panel, and its light-emitting effect will directly affect the visual effect of the display touch panel. The backlight module is used for providing a light source for displaying the touch panel. The light guide plate mainly comprises a light source, a light guide plate, an optical film, a plastic frame and the like. The backlight module has the characteristics of high brightness, long service life, uniform light emission and the like. The light sources are divided into edge light type and direct type (bottom backlight type) according to their distribution positions. With the development of the display module towards brighter, lighter and thinner, the edge-type backlight module has become the mainstream of the development of the backlight module.
The side-light type backlight module is a single light source with light sources arranged on the side, the light guide plate is in an injection molding non-printing design, and is generally commonly used in the backlight module with the medium size or the small size below 30 inches, the side-light type backlight module adopts a side-incident light source design, has the characteristics of light weight, thinness, narrow frame and low power consumption, is mainly used as the light source of mobile phones, tablet computers and notebook computers, and also has a side-light type structure adopted by large-size television backlight modules.
As shown in fig. 1 and 2, the positions of the light sources of the conventional edge-lit backlight module are shown, the light sources 1 of the conventional edge-lit backlight module are all disposed on one side of the light guide plate 2, and as shown in fig. 2, the bottom surface of the light guide plate 2 is designed to be inclined, so that the light reflection efficiency can be improved.
However, the conventional edge-type backlight module has many disadvantages in implementation, firstly, the light source 1 is disposed at one side of the light guide plate 2, so that the light source and the light guide plate are not aligned correctly during assembly, secondly, the light source 1 is disposed at one side of the light guide plate 2, so that light leakage often occurs between the light source and the light guide plate, and thirdly, a gap generally exists between the light source 1 and the light guide plate 2, so that the light of the light source 1 cannot enter the light guide plate 2 completely. As described above is a major drawback of the conventional technology.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: the utility model provides a backlight unit light source inclined type touch-sensitive screen which characterized in that: the touch display module comprises a cover plate, a touch functional layer and a display screen layer, wherein the cover plate, the touch functional layer and the display screen layer are stacked together from top to bottom to form the touch display module.
The backlight module comprises a bottom cover, a top cover and a light source body, wherein a bottom cover cavity is arranged at the bottom of the bottom cover, a light reflecting plate and a light guide plate are arranged in the bottom cover cavity, the light guide plate is arranged above the light reflecting plate, the light guide plate is provided with a top surface, a bottom surface and an inclined light incoming surface, the inclined light incoming surface is positioned between the top surface and the bottom surface, and the inclined light incoming surface is positioned at one side end part of the light guide plate.
The light source body comprises a circuit board, a plurality of LED light sources and a positioning optical block, wherein the LED light sources are connected to the circuit board, the positioning optical block is covered on the circuit board, the LED light sources are covered in the positioning optical block, the positioning optical block is provided with a light source cavity, an optical lens unit is arranged in the light source cavity, the LED light sources are arranged in the light source cavity, and each LED light source corresponds to the optical lens unit.
The positioning optical block is provided with a light incident surface, an outer positioning surface and an inner positioning surface, wherein the light incident surface is positioned on one side of the optical lens unit, and the light incident surface is butted with the inclined light incident surface of the light guide plate.
The LED light sources are electrified to emit light, and the emitted light penetrates through the optical lens unit and sequentially penetrates through the light incident surface and the inclined light incident surface to irradiate into the light guide plate.
The side wall of the bottom cover is provided with a positioning inclined surface corresponding to the outer side positioning surface of the positioning optical block, the outer side positioning surface is pressed on the positioning inclined surface, the upper part of the light guide plate is pressed with a pressing block, the pressing block is provided with a side pressing surface corresponding to the inner side positioning surface of the positioning optical block, the inner side positioning surface is pressed on the side pressing surface, a positioning cavity is formed by the positioning inclined surface, the side pressing surface and the inclined light incoming surface in a surrounding mode, and the positioning optical block is fixed in the positioning cavity.
This light source body top is pressed and is equipped with heat dissipation location strip, this heat dissipation location strip is located between this light source body and this top cap, this heat dissipation location strip is made by the heat conduction material, this heat dissipation location strip has the slope and pushes down the face, this slope pushes down the face and presses and establish on this circuit board, this top cap is made by heat dissipation material, this top cap lock is in this bottom top, this top cap is pressed and is established on this heat dissipation location strip, the produced heat of this circuit board at first conducts to this heat dissipation location strip in, then outwards give off the heat through this top cap.
A light film layer is arranged above the light guide plate, and the end part of the light film layer is pressed on the vertical side surface of the pressing block.
The invention has the beneficial effects that: with the continuous promotion of the requirement of digital product frivolousization, the thickness of the light guide plate is also gradually reduced, simultaneously, the material cost of the product can be reduced by reducing the thickness of the light guide plate, the reduction of the thickness of the light guide plate enables the side width to be also gradually reduced, in the prior art, the light source is butted with the side edge of the light guide plate, the reduction of the side width enables the light incidence angle to be gradually reduced, the reduction of the light incidence efficiency and the gradual aggravation of the light leakage phenomenon can be mainly brought, in order to avoid the occurrence of the above situation, the reduction of the size of the light source becomes the only solving means, but the cost of the product can be greatly promoted by introducing the LED of the small light source.
The invention creatively provides a design idea of oblique incidence light, the size of the incidence light surface can be greatly expanded by opening up the oblique incidence light surface of the light guide plate, the incidence light efficiency is improved, and meanwhile, the positioning optical block is introduced to firstly improve the light efficiency and avoid light leakage, and simultaneously, the positioning and fixing effects on the light source body can be realized. The design mode of the invention can be utilized to manufacture the light source body by utilizing the traditional light source, thereby greatly reducing the product cost.
Drawings
Fig. 1 is a schematic structural diagram of a first prior art.
Fig. 2 is a schematic structural diagram of a second prior art.
Fig. 3 is a schematic structural diagram of the present invention.
FIG. 4 is a top view of a first embodiment of a positioning optics block of the present invention.
FIG. 5 is a perspective cross-sectional view of a second embodiment of a positioning optics block of the present invention.
FIG. 6 is a schematic view of a light source according to the present invention.
Fig. 7 is an exploded view of the present invention.
FIG. 8 is a schematic view of a positioning chamber of the present invention.
Fig. 9 is a schematic assembly flow diagram of the present invention.
FIG. 10 is a schematic diagram of a non-light source end of the backlight module according to the present invention.
Detailed Description
As shown in fig. 3 to 9, a touch screen with an inclined backlight module comprises a backlight module 10 and a touch display module 20, wherein the touch display module 20 is disposed above the backlight module 10.
As shown in fig. 3, the touch display module 20 includes a cover plate 21, a touch functional layer 22 and a display screen layer 23, the cover plate 21, the touch functional layer 22 and the display screen layer 23 are stacked together from top to bottom to form the touch display module 20, and the touch display module 20 is a prior art and will not be described herein again.
The backlight module 10 includes a bottom cover 100, a top cover 200 and a light source body 300, wherein a bottom cover cavity is disposed at the bottom of the bottom cover 100.
The light reflecting plate 400 and the light guide plate 500 are disposed in the bottom cover cavity, and the light guide plate 500 is disposed above the light reflecting plate 400.
The light guide plate 500 has a top surface 510, a bottom surface 520 and an inclined light incident surface 530.
The inclined light incident surface 530 is located between the top surface 510 and the bottom surface 520, and meanwhile, the inclined light incident surface 530 is located at one side end of the light guide plate 500.
In a specific implementation, an angle between the inclined light incident surface 530 and the bottom surface 520 is between eighty degrees and twenty degrees. In practice, thirty degrees is preferred.
The light source body 300 includes a circuit board 310, an LED light source 320, and a positioning optical block 330.
A plurality of the LED light sources 320 are attached to the circuit board 310.
The positioning optical block 330 is covered on the circuit board 310, and the plurality of LED light sources 320 are covered in the positioning optical block 330.
The positioning optical block 330 has a light source cavity 410, and an optical lens unit 420 is disposed in the light source cavity 410.
Several LED light sources 320 are disposed in the light source cavity 410, and each of the LED light sources 320 corresponds to the optical lens unit 420.
In practice, the optical lens unit 420 and the positioning optical block 330 are integrally connected to form a whole for convenient processing, and in practice, the positioning optical block 330 can be produced by integrally molding with a mold.
As shown in fig. 4, in a top view of the positioning optical block 330, the optical lens unit 420 includes a plurality of lenses 421, and the lenses 421 correspond to the LED light sources 320 one by one.
As shown in fig. 5, which is a perspective cross-sectional view of the positioning optical block 330, the optical lens unit 420 is a strip lens 423, the strip lens 423 is disposed in the light source cavity 410 in a penetrating manner, and a plurality of LED light sources 320 correspond to the strip lens 423 at the same time, so that the lens arrangement can reduce the production cost.
The positioning optical block 330 has an incident surface 430, an outer positioning surface 440 and an inner positioning surface 450, wherein the incident surface 430 is located at one side of the optical lens unit 420, and the incident surface 430 is in butt joint with the inclined incident surface 530 of the light guide plate 500.
The light source body 300 is disposed at an obliquely upper position at one side of the light guide plate 500, and the LED light sources 320 are disposed vertically above the inclined light incident surface 530.
In operation, the LED light sources 320 are energized to emit light, and the emitted light passes through the optical lens unit 420, sequentially passes through the light incident surface 430 and the inclined light incident surface 530, and then is incident on the light guide plate 500.
With the continuous promotion of the requirement of the lightness and thinness of digital products, the thickness of the light guide plate is gradually reduced, and meanwhile, the material cost of the product can be reduced by reducing the thickness of the light guide plate.
The light guide plate has reduced thickness and gradually reduced side width, and the light source is connected to the side of the light guide plate in the prior art, and the reduced side width can reduce the incident light angle gradually, which can reduce the incident light efficiency and increase the light leakage.
In order to avoid the above situation, reducing the size of the light source becomes the only solution, but the LED with small light source will greatly increase the cost of the product.
The invention creatively provides a design idea of oblique light incidence, and the size of the light incidence surface can be greatly expanded by opening up the oblique light incidence surface 530 of the light guide plate 500, so that the light incidence efficiency is improved.
Meanwhile, the positioning optical block 330 is introduced to firstly improve the light efficiency and avoid light leakage, and simultaneously, the positioning and fixing effects on the light source body 300 can be achieved.
The light source body 300 can be manufactured by using a traditional light source by using the design mode of the invention, thereby greatly reducing the product cost.
As shown in fig. 6 to 8, corresponding to the outer positioning surface 440 of the positioning optical block 330, a positioning inclined surface 110 is disposed on a sidewall of the bottom cover 100, and the outer positioning surface 440 is pressed on the positioning inclined surface 110.
The press block 600 is pressed above the light guide plate 500, the press block 600 has a side press surface 610, the side press surface 610 corresponds to the inner side positioning surface 450 of the positioning optical block 330, and the inner side positioning surface 450 is pressed on the side press surface 610.
As shown in fig. 8, a positioning cavity a is formed by the positioning inclined surface 110, the side pressure surface 610 and the inclined light incident surface 530, and the positioning optical block 330 is fixed in the positioning cavity a.
As shown in fig. 7 to 8, a heat dissipation positioning bar 700 is pressed on the top of the light source body 300, and the heat dissipation positioning bar 700 is located between the light source body 300 and the top cover 200.
The heat dissipating positioning bar 700 is made of a material with good heat conductivity, such as: heat conductive silica gel, a resin material in which heat conductive powder is mixed, and the like.
The heat-dissipating positioning strip 700 has an inclined pressing surface 710, and the inclined pressing surface 710 is pressed on the circuit board 310.
The top cover 200 is made of a heat dissipating material, such as metallic aluminum, copper, or the like.
The top cover 200 is fastened above the bottom cover 100, and meanwhile, the top cover 200 is pressed on the heat dissipation positioning strip 700.
In operation, heat generated by the circuit board 310 is first conducted to the heat-dissipating positioning bar 700, and then dissipated outward through the top cover 200.
The heat dissipation positioning bar 700 and the top cap 200 of the present invention can achieve the positioning function of the light source 300, and can achieve the heat dissipation function of the light source 300.
As shown in fig. 3, a light film layer 800 is further disposed above the light guide plate 500, an end of the light film layer 800 is pressed on the vertical side 620 of the pressing block 600, the light film layer 800 mainly serves to equalize light and improve light efficiency, and the light film layer 800 is not described again in the prior art.
In practice, light film layer 800 can include a diffuser layer, an upper antireflective coating layer, and a lower antireflective coating layer, and light film layer 800 can also include a diffuser layer, a prism layer, and an antireflective coating layer.
In a specific implementation, the positioning inclined surface 110 and the side pressing surface 610 are provided with a light reflecting layer.
The reflective layer can be formed by disposing reflective material on the inclined positioning surface 110 and the lateral pressing surface 610 by sputtering or plating.
The light leakage of the light source 300 can be prevented by the positioning inclined surface 110 and the reflective layer on the side pressure surface 610, and the light incident effect can be improved.
In specific implementation, a press block reflective layer is disposed on the bottom 630 of the press block 600, the press block reflective layer is parallel to the light reflective plate 400, and the press block reflective layer can prevent the light leakage of the light source 300 and is beneficial to improving the light incident effect.
As shown in fig. 7, in an embodiment, the top of the sidewall of the bottom cover 100 is provided with a first inclined fastening surface 120.
The bottom of the sidewall of the top cover 200 is provided with a second inclined fastening surface 220, and the second inclined fastening surface 220 is press-fit connected to the first inclined fastening surface 120.
In practice, the second inclined fastening surface 220 can be press-fit connected to the first inclined fastening surface 120 by gluing, welding, or the like.
In addition, the oblique connection manner of the first oblique fastening surface 120 and the second oblique fastening surface 220 can facilitate the butt-joint assembly, and simplify the structure and the production process.
As described above, the assembling process and the assembling structure of the light source end of the backlight module are described, and the structure of the other end is the prior art, which is not described herein again, and as shown in fig. 10, the structure of the other end of the backlight module is shown schematically.
Claims (9)
1. The utility model provides a backlight unit light source inclined type touch-sensitive screen which characterized in that: comprises a backlight module and a touch display module, wherein the touch display module is arranged above the backlight module and comprises a cover plate, a touch functional layer and a display screen layer, the cover plate, the touch functional layer and the display screen layer are stacked together from top to bottom to form the touch display module,
the backlight module comprises a bottom cover, a top cover and a light source body, wherein the bottom of the bottom cover is provided with a bottom cover cavity, a light reflecting plate and a light guide plate are arranged in the bottom cover cavity, the light guide plate is arranged above the light reflecting plate, the light guide plate is provided with a top surface, a bottom surface and an inclined light incoming surface, the inclined light incoming surface is positioned between the top surface and the bottom surface, the inclined light incoming surface is positioned at one side end part of the light guide plate, the included angle between the inclined light incoming surface and the bottom surface is eighty degrees to twenty degrees,
the light source body comprises a circuit board, a plurality of LED light sources and a positioning optical block, wherein the plurality of LED light sources are connected to the circuit board, the positioning optical block is covered on the circuit board, the plurality of LED light sources are covered in the positioning optical block, the positioning optical block is provided with a light source cavity, an optical lens unit is arranged in the light source cavity, the plurality of LED light sources are arranged in the light source cavity, each LED light source corresponds to the optical lens unit,
the positioning optical block has a light incident surface, an outer positioning surface and an inner positioning surface, wherein the light incident surface is located at one side of the optical lens unit and is butted with the inclined light incident surface of the light guide plate,
the LED light sources are electrified to emit light, the emitted light penetrates through the optical lens unit and sequentially passes through the light incident surface and the inclined light incident surface to irradiate the light guide plate,
a positioning inclined surface is arranged on the side wall of the bottom cover corresponding to the outer side positioning surface of the positioning optical block, the outer side positioning surface is pressed on the positioning inclined surface, a press block is pressed above the light guide plate, the press block is provided with a side pressing surface corresponding to the inner side positioning surface of the positioning optical block, the inner side positioning surface is pressed on the side pressing surface, a positioning cavity is formed by the positioning inclined surface, the side pressing surface and the inclined light incoming surface in a surrounding way, and the positioning optical block is fixed in the positioning cavity,
the top of the light source body is pressed with a heat dissipation positioning strip which is positioned between the light source body and the top cover, the heat dissipation positioning strip is made of heat conduction material, the heat dissipation positioning strip is provided with an inclined pressing surface, the inclined pressing surface is pressed on the circuit board, the top cover is made of heat dissipation material, the top cover is buckled above the bottom cover, the top cover is pressed on the heat dissipation positioning strip, the heat generated by the circuit board is firstly conducted into the heat dissipation positioning strip and then is dissipated outwards through the top cover,
a light film layer is arranged above the light guide plate, and the end part of the light film layer is pressed on the vertical side surface of the pressing block.
2. The touch screen of claim 1, wherein: the inclined light incident surface and the bottom surface form an included angle of thirty degrees, the light source body is positioned above the inclined portion on one side of the light guide plate, and the LED light sources are positioned right above the inclined light incident surface.
3. The touch screen of claim 1, wherein: the optical lens unit is connected with the positioning optical block to form a whole.
4. The touch screen of claim 3, wherein: the optical lens unit comprises a plurality of lenses, and the lenses correspond to the LED light sources one to one.
5. The touch screen of claim 3, wherein: the optical lens unit is a strip lens which is arranged in the light source cavity in a penetrating mode, and the LED light sources correspond to the strip lens at the same time.
6. The touch screen of claim 1, wherein: and the positioning inclined surface and the side pressing surface are provided with a reflecting layer.
7. The backlight module light source tilted touch screen as claimed in claim 1 or 6, wherein: the bottom surface of the pressing block is provided with a pressing block reflecting layer which is parallel to the light reflecting plate.
8. The touch screen with a tilted backlight module as defined in claim 1, wherein: the top of the side wall of the bottom cover is provided with a first inclined buckling surface, the bottom of the side wall of the top cover is provided with a second inclined buckling surface, and the second inclined buckling surface is connected to the first inclined buckling surface in a pressing mode.
9. The touch screen of claim 1, wherein: the light film layer comprises a diffusion film layer, a prism film layer and an antireflection film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530833.3A CN114624810B (en) | 2022-05-17 | 2022-05-17 | Backlight unit light source inclined touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530833.3A CN114624810B (en) | 2022-05-17 | 2022-05-17 | Backlight unit light source inclined touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114624810A true CN114624810A (en) | 2022-06-14 |
| CN114624810B CN114624810B (en) | 2022-08-16 |
Family
ID=81907239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210530833.3A Active CN114624810B (en) | 2022-05-17 | 2022-05-17 | Backlight unit light source inclined touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114624810B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080231772A1 (en) * | 2007-03-21 | 2008-09-25 | Chi Mei Optoelectronics Corp. | Flat panel display and fabrication method thereof |
| CN101561116A (en) * | 2009-05-25 | 2009-10-21 | 友达光电股份有限公司 | Light guide plate, backlight module and display device |
| CN101749612A (en) * | 2010-01-07 | 2010-06-23 | 深圳超多维光电子有限公司 | Backlight module |
| CN201540425U (en) * | 2009-07-24 | 2010-08-04 | 康佳集团股份有限公司 | Back light module device of liquid crystal display |
| CN101922662A (en) * | 2010-08-18 | 2010-12-22 | 友达光电股份有限公司 | Light-source structure of light-emitting diode |
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| CN202629831U (en) * | 2012-06-28 | 2012-12-26 | 上海天马微电子有限公司 | Backlight module |
| CN104421770A (en) * | 2013-09-11 | 2015-03-18 | 联想(北京)有限公司 | Backlight module and display device |
| CN106226951A (en) * | 2016-08-08 | 2016-12-14 | 广州创维平面显示科技有限公司 | A kind of side entrance back module and display device |
| CN106287577A (en) * | 2015-06-24 | 2017-01-04 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
-
2022
- 2022-05-17 CN CN202210530833.3A patent/CN114624810B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080231772A1 (en) * | 2007-03-21 | 2008-09-25 | Chi Mei Optoelectronics Corp. | Flat panel display and fabrication method thereof |
| CN101561116A (en) * | 2009-05-25 | 2009-10-21 | 友达光电股份有限公司 | Light guide plate, backlight module and display device |
| CN201540425U (en) * | 2009-07-24 | 2010-08-04 | 康佳集团股份有限公司 | Back light module device of liquid crystal display |
| CN101749612A (en) * | 2010-01-07 | 2010-06-23 | 深圳超多维光电子有限公司 | Backlight module |
| CN101922662A (en) * | 2010-08-18 | 2010-12-22 | 友达光电股份有限公司 | Light-source structure of light-emitting diode |
| CN102606952A (en) * | 2012-03-06 | 2012-07-25 | 深圳市华星光电技术有限公司 | Reflective incidence backlight module and liquid crystal display device |
| CN202629831U (en) * | 2012-06-28 | 2012-12-26 | 上海天马微电子有限公司 | Backlight module |
| CN104421770A (en) * | 2013-09-11 | 2015-03-18 | 联想(北京)有限公司 | Backlight module and display device |
| CN106287577A (en) * | 2015-06-24 | 2017-01-04 | 南京瀚宇彩欣科技有限责任公司 | Backlight module and display device |
| CN106226951A (en) * | 2016-08-08 | 2016-12-14 | 广州创维平面显示科技有限公司 | A kind of side entrance back module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114624810B (en) | 2022-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4546038B2 (en) | Liquid crystal display | |
| WO2021227732A1 (en) | Display device and back panel assembly | |
| US11579489B2 (en) | Display apparatus | |
| CN103133945B (en) | Backlight module for providing light source to display panel and display device thereof | |
| WO2017084423A1 (en) | Backlight module rear cover, backlight module, and display module | |
| WO2017084425A1 (en) | Display module and manufacturing method therefor | |
| CN101922644B (en) | Light source group and backlight module | |
| TW201525582A (en) | Direct-type backlighting module | |
| CN109613752B (en) | Backlight module and display device | |
| CN101876424A (en) | Backing plate of side incident type backlight module | |
| KR20120133558A (en) | Backlight Unit | |
| CN101285963B (en) | Backlight module | |
| CN1321345C (en) | Sidelight back light module | |
| CN104633531A (en) | Lateral entrance type backlight module | |
| WO2016086534A1 (en) | Light guide plate and manufacturing method therefor | |
| CN100507664C (en) | Sidelight type aphototropism module and liquid crystal display device | |
| TW201520657A (en) | Side light type backlight module | |
| US6966686B2 (en) | Surface light source device | |
| CN114624810B (en) | Backlight unit light source inclined touch screen | |
| JP2014186069A (en) | Liquid crystal display device and television receiver unit | |
| CN114624811B (en) | Production method of display screen backlight module | |
| KR101832483B1 (en) | Backlight unit and liquid crystal display device and method having the same | |
| CN115933044A (en) | Light guide plate assembly and preparation method thereof, backlight module and display device | |
| CN210294766U (en) | Curved surface type LED backlight structure | |
| JP4125746B2 (en) | Backlight device and liquid crystal display device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |