CN113985654A - Display device with controllable light guide plate - Google Patents
Display device with controllable light guide plate Download PDFInfo
- Publication number
- CN113985654A CN113985654A CN202111226807.3A CN202111226807A CN113985654A CN 113985654 A CN113985654 A CN 113985654A CN 202111226807 A CN202111226807 A CN 202111226807A CN 113985654 A CN113985654 A CN 113985654A
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- light guide
- liquid crystal
- display device
- 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
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
-
- 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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
-
- 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
- G02F1/133628—Illuminating devices with cooling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a display device with a light-controllable light guide plate, which comprises a light guide plate body, an outer frame and a fixed seat, wherein the light guide plate body comprises a light incident layer, a liquid crystal layer and an adhesive layer; the invention enables the light guide plate body to uniformly emit light through the arranged irregularly-arranged mesh points, aims to avoid Newton rings and interference fringes generated among the mesh points, the liquid crystal layer and the liquid crystal screen to influence the use effect of the display device through the arranged grooves arranged in a matrix manner, and controls the motion state of liquid crystal through the arranged liquid crystal control panel, thereby controlling the intensity of the emitted light and playing a role in controlling the light.
Description
Technical Field
The invention relates to the technical field of light guide plates, in particular to a display device with a light-controllable light guide plate.
Background
At present only straight following formula LCD and OLED have accuse light function, ordinary straight following formula LCD thickness is very thick, though can accomplish the subregion accuse light but the effect is general, and mini LED and micro LED's price is very high, the no subregion accuse light effect of side income formula LCD, lead to that colour chroma and contrast are low, the display effect is poor, and do not set up radiator unit, the display is when carrying out subregion accuse light operation, inside temperature is higher, can influence the life of inside electrical part, and the display is at the during operation, its surface can adsorb the dust, further influence the radiating effect.
Disclosure of Invention
The invention solves the problems that:
(1) the existing side-entry liquid crystal display has no partitioned light control effect, so that the color chroma and the contrast ratio are low, and the display effect is poor;
(2) current display does not set up radiator unit, and the display is when carrying out subregion accuse light operation, and inside temperature is higher, can influence the life of inside electrical part to the display is at the during operation, and its surface can adsorb the dust, further influences the radiating effect.
The present invention is directed to a display device with a light-controllable light guide plate to solve the disadvantages of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a display device with controllable light guide plate, includes light guide plate body, frame and fixing base, the light guide plate body includes into photosphere, liquid crystal layer and laminating layer, and a plurality of sites have been seted up to one side of going into the photosphere, and a plurality of recesses have been seted up to one side that the site was kept away from to the photosphere, are equipped with in the fixing base to be used for carrying out radiating heat dissipation mechanism to the light guide plate body.
As a further technical scheme of the invention, the grooves are arranged in a matrix, the size of the grooves is far larger than that of the dots, and the distance between every two adjacent grooves is smaller than that between every two adjacent dots.
As a further technical scheme of the invention, the liquid crystal layer is fixed on one side of the light incident layer, which is provided with the groove, the adhesive layer is fixed on one side of the liquid crystal layer, which is far away from the groove, and the composite film is fixed on one side of the adhesive layer, which is far away from the liquid crystal layer.
As a further technical scheme of the invention, white reflective paper is fixed on one side of the light incident layer, which is provided with the screen points, a backboard is fixed on one side of the white reflective paper, which is far away from the light incident layer, and a liquid crystal screen is fixed on one side of the composite film, which is far away from the adhesive layer.
As a further technical scheme of the present invention, a fixing seat is fixedly connected to the lower ends of the liquid crystal display and the back plate, an inner cavity is formed in the fixing seat, the lower end of the light guide plate body penetrates into the inner cavity, a junction box is fixed to the lower end of the light guide plate body, the lower end of the light guide plate body penetrates into the junction box, a light bar is fixed to the lower end of the light guide plate body, and the lower end of the light guide plate body is electrically connected to a liquid crystal control panel.
As a further technical scheme, the outer frame comprises a pair of side plates and a top plate, an inserting plate is fixed on the lower end face of each side plate, one end of each inserting plate is inclined, a plurality of protrusions are fixed on one side, close to the light guide plate body, of each inserting plate, positioning sliding grooves are formed in two sides of each inserting plate, and inserting holes matched with the inserting plates are formed in the upper end face of the fixing seat.
As a further technical scheme of the invention, the heat dissipation mechanism comprises a plurality of heat dissipation fans fixedly connected to the bottom of the inner cavity, the upper end surface of the fixed seat is provided with a plurality of first through holes, and the end surface of one side of the fixed seat is movably provided with the opening-closing plate.
As a further technical scheme of the invention, the bottom of the top plate is obliquely provided with two air guide plates, a plurality of air guide holes are formed in the air guide plates, and the upper end surface of the top plate is provided with a plurality of second through holes.
The invention has the beneficial effects that:
1. through the anomalous site of arranging that sets up, make the even light-emitting of light guide plate body, through the recess that is the matrix arrangement that sets up, the purpose is avoided producing newton ring and interference line between site, liquid crystal layer and the LCD screen three, influences this display device's result of use, through the liquid crystal control panel that sets up, controls the motion state of liquid crystal to the power of control light-emitting plays the effect of accuse light.
2. Through the aviation baffle that sets up, guiding hole and radiator fan, when radiator fan during operation, the circulation of air is through first through-hole upward movement, and partial air current still can pass through the guiding hole, passes the bottom that the aviation baffle entered into the roof, and upwards diffusion is passed through the second through-hole from the bottom of roof again, at the whole motion process of air current, on the one hand plays radiating effect to this display device, and on the other hand can blow away the dust that adsorbs on this display device, the effectual practicality that has improved this display device.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of a light guide plate according to the present invention;
FIG. 3 is a cross-sectional view of the light guide plate body and the LCD panel of the present invention;
FIG. 4 is a schematic view of the connection between the insert plate and the side plate according to the present invention;
FIG. 5 is a schematic view of the internal structure of the fixing base of the present invention;
fig. 6 is a schematic structural view of the air deflector of the present invention.
In the figure: 1. a light guide plate body; 2. an outer frame; 3. a fixed seat; 4. a light incident layer; 5. a liquid crystal layer; 6. laminating layers; 7. a mesh point; 8. a groove; 9. a heat dissipation mechanism; 10. compounding film; 11. white reverse paper; 12. a back plate; 13. a liquid crystal screen; 14. a junction box; 15. a light bar; 16. a side plate; 17. a top plate; 18. inserting plates; 19. a protrusion; 20. positioning the chute; 21. a heat radiation fan; 22. opening and closing the board; 23. an air deflector; 24. and air guide holes.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-6, a display device with a light-controllable light guide plate includes a light guide plate body 1, an outer frame 2 and a fixing base 3, where the light guide plate body 1 includes a light incident layer 4, a liquid crystal layer 5 and an adhesive layer 6, one side of the light incident layer 4 is provided with a plurality of dots 7, the arrangement of the dots 7 is irregular, the width of the dots 7 is 50 μm to 150 μm, the depth is 30 μm to 60 μm, and the purpose of the dots 7 is to make the light guide plate body 1 emit light uniformly.
A plurality of grooves 8 are formed in one side, away from the mesh points 7, of the light incident layer 4, the grooves 8 are arranged in a matrix mode, the shapes of the grooves 8 are similar to triangular prisms, the size of each groove 8 is far larger than that of each mesh point 7, the distance between every two adjacent grooves 8 is smaller than that between every two adjacent mesh points 7, the arrangement mode and the size of the grooves 8 are used for avoiding generation of Newton rings and interference fringes among the mesh points 7, the liquid crystal layer 5 and the liquid crystal screen 13, the direction of the side edges of the grooves 8 needs to be parallel to the light incident direction, otherwise, light cannot reach the end of the light incident layer 4, and the light guide plate body 1 is half bright and half dark.
The liquid crystal layer 5 is fixed on one side of the light incident layer 4, which is provided with the groove 8, the motion state of the liquid crystal is controlled through an electric signal, so that the intensity of the emergent light is controlled, the attaching layer 6 is fixed on one side of the liquid crystal layer 5, which is far away from the groove 8, the refractive index of the attaching layer 6 is not lower than that of the light incident layer 4, the closer the refractive index is, otherwise, part of the light can be totally reflected and cannot be emitted from the light incident layer 4, so that the overall brightness of the display device is low, one side of the attaching layer 6 is attached to the groove 8 side of the light incident layer 4, the attaching mode is two, namely frame attaching, the attaching layer 6 is attached to four sides of the groove 8 side of the light incident layer 4, the surface of the attaching layer 6 is closely attached to the side surface of the groove 8, no gap exists, and the liquid crystal cannot flow between the two attaching surfaces; the other method is full-pasting, the whole side of the groove 8 of the light incident layer 4 is pasted with a glue layer and then is pasted with the pasting layer 6, the glue layer above the groove 8 needs to be dug out, and the glue layer is not contacted with the liquid crystal.
The side, far away from liquid crystal layer 5, of adhesive layer 6 is fixed with composite film 10, the side, far away from light incident layer 4, of light incident layer 4 is fixed with white reflection paper 11, the side, far away from light incident layer 4, of white reflection paper 11 is fixed with back plate 12, the whole face of white reflection paper 11 is completely laminated with back plate 12, light control light guide plate frame is laminated on white reflection paper 11, one side, far away from light incident layer 4, of white reflection paper 11 and light control light guide plate is required to be frosted, and adsorption between white reflection paper 11 and light control light guide plate is avoided.
One side that laminating layer 6 was kept away from to complex film 10 is fixed with LCD screen 13, LCD screen 13 pastes the mode laminating through the frame with 10 one side of complex film of accuse light guide plate, the lower extreme fixedly connected with fixing base 3 of LCD screen 13 and backplate 12, the inner chamber has been seted up in the fixing base 3, the lower extreme of light guide plate body 1 runs through to the intracavity, the lower extreme of light guide plate body 1 is fixed with terminal box 14, the lower extreme of light guide plate body 1 runs through to the terminal box 14 in, the lower extreme of light guide plate body 1 is fixed with lamp strip 15, the position of lamp strip 15 aligns between two parties with the position of accuse light guide plate income photosphere 4, the lower extreme electrically connected with liquid crystal control board of light guide plate body 1.
The fixed seat 3 is internally provided with a heat dissipation mechanism 9 for dissipating heat of the light guide plate body 1, the heat dissipation mechanism 9 comprises a plurality of heat dissipation fans 21 fixedly connected with the bottom of the inner cavity, the upper end surface of the fixed seat 3 is provided with a plurality of first through holes, one side end surface of the fixed seat 3 is movably provided with an opening plate 22, when parts in the inner cavity need to be replaced and maintained, the opening plate 22 is opened only by pressing a push button, operators do not need to disassemble each fastening bolt, the bottom of the top plate 17 is obliquely provided with two air deflectors 23, the air deflectors 23 are internally provided with a plurality of air guide holes 24, the upper end surface of the top plate 17 is provided with a plurality of second through holes, when the heat dissipation fans 21 work, upward flowing air flow is generated, the air flow moves upwards through the first through holes, part of the air flow can also pass through the air guide holes 24, passes through the air deflectors 23 to enter the bottom of the top plate 17, and then upwards diffuses from the bottom of the top plate 17 through the second through holes, in the whole motion process of air current, on the one hand, the display device has a heat dissipation effect, and on the other hand, dust adsorbed on the display device can be blown away, so that the practicability of the display device is effectively improved.
When the display device is in a working state, light passes through the light guide plate body 1, the liquid crystal control panel controls the movement state of liquid crystal through an electric signal, so that the intensity of light emission is controlled, and the light control effect is achieved.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a display device with controllable light guide plate, includes light guide plate body (1), frame (2) and fixing base (3), its characterized in that, light guide plate body (1) is including going into photosphere (4), liquid crystal layer (5) and laminating layer (6), and a plurality of site (7) have been seted up to one side of going into photosphere (4), and a plurality of recesses (8) have been seted up to one side that the site (7) were kept away from in photosphere (4), is equipped with in fixing base (3) and is used for carrying out radiating heat dissipation mechanism (9) to light guide plate body (1).
2. A display device with a light-guiding plate for controlling light according to claim 1, wherein the grooves (8) are arranged in a matrix, the size of the grooves (8) is much larger than the size of the dots (7), and the distance between adjacent grooves (8) is smaller than the distance between adjacent dots (7).
3. A display device with a light-guiding plate for controlling light according to claim 1, characterized in that the liquid crystal layer (5) is fixed on the side of the light-entering layer (4) where the groove (8) is formed, the adhesive layer (6) is fixed on the side of the liquid crystal layer (5) away from the groove (8), and the composite film (10) is fixed on the side of the adhesive layer (6) away from the liquid crystal layer (5).
4. A display device with a light-controllable light-guiding plate according to claim 3, wherein a white reflective paper (11) is fixed on the side of the light-incident layer (4) where the dots (7) are formed, a back plate (12) is fixed on the side of the white reflective paper (11) far away from the light-incident layer (4), and a liquid crystal screen (13) is fixed on the side of the composite film (10) far away from the adhesive layer (6).
5. The display device with the light-controllable light guide plate according to claim 4, wherein the liquid crystal display (13) and the lower end of the back plate (12) are fixedly connected with a fixing seat (3), an inner cavity is formed in the fixing seat (3), the lower end of the light guide plate body (1) penetrates into the inner cavity, a junction box (14) is fixed at the lower end of the light guide plate body (1), the lower end of the light guide plate body (1) penetrates into the junction box (14), a light bar (15) is fixed at the lower end of the light guide plate body (1), and a liquid crystal control panel is electrically connected at the lower end of the light guide plate body (1).
6. The display device with the light-controllable light guide plate according to claim 1, wherein the outer frame (2) comprises a pair of side plates (16) and a top plate (17), an insertion plate (18) is fixed on the lower end face of each side plate (16), one end of the insertion plate (18) is inclined, a plurality of protrusions (19) are fixed on one side of the insertion plate (18) close to the light guide plate body (1), positioning sliding grooves (20) are formed in two sides of the insertion plate (18), and a jack matched with the insertion plate (18) for use is formed in the upper end face of the fixing seat (3).
7. The display device with the light-controllable light guide plate according to claim 5, wherein the heat dissipation mechanism (9) comprises a plurality of heat dissipation fans (21) fixedly connected to the bottom of the inner cavity, the upper end surface of the fixing base (3) is provided with a plurality of first through holes, and one side end surface of the fixing base (3) is movably provided with an opening-closing plate (22).
8. The display device with the light-controllable light guide plate according to claim 6, wherein two air guiding plates (23) are obliquely arranged at the bottom of the top plate (17), a plurality of air guiding holes (24) are formed in the air guiding plates (23), and a plurality of second through holes are formed in the upper end surface of the top plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226807.3A CN113985654B (en) | 2021-10-21 | 2021-10-21 | Display device with controllable light guide light plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111226807.3A CN113985654B (en) | 2021-10-21 | 2021-10-21 | Display device with controllable light guide light plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113985654A true CN113985654A (en) | 2022-01-28 |
| CN113985654B CN113985654B (en) | 2023-05-30 |
Family
ID=79739962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111226807.3A Active CN113985654B (en) | 2021-10-21 | 2021-10-21 | Display device with controllable light guide light plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113985654B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047557A (en) * | 2022-06-20 | 2022-09-13 | 深圳市群宇科技有限公司 | Light guide plate with high refractive index |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297367A (en) * | 1992-04-16 | 1993-11-12 | Ricoh Co Ltd | Liquid crystal display device and viewfinder using the same |
| JP2001228477A (en) * | 2000-02-15 | 2001-08-24 | Sakae Tanaka | Manufacturing method of liquid crystal display, and back light |
| CN1504769A (en) * | 2002-11-29 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and light source apparatus thereof |
| CN102768433A (en) * | 2012-08-01 | 2012-11-07 | 友达光电股份有限公司 | Liquid crystal display equipment |
| CN106647030A (en) * | 2016-12-27 | 2017-05-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal displayer |
| CN106873241A (en) * | 2017-02-09 | 2017-06-20 | 青岛海信电器股份有限公司 | A kind of backlight module and liquid crystal display device |
| CN107490898A (en) * | 2017-08-14 | 2017-12-19 | 深圳市华星光电技术有限公司 | Side entrance back module and liquid crystal display device |
| CN108831333A (en) * | 2018-05-09 | 2018-11-16 | 合肥泰沃达智能装备有限公司 | A kind of ultra-thin LED advertisement cabinet |
-
2021
- 2021-10-21 CN CN202111226807.3A patent/CN113985654B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05297367A (en) * | 1992-04-16 | 1993-11-12 | Ricoh Co Ltd | Liquid crystal display device and viewfinder using the same |
| JP2001228477A (en) * | 2000-02-15 | 2001-08-24 | Sakae Tanaka | Manufacturing method of liquid crystal display, and back light |
| CN1504769A (en) * | 2002-11-29 | 2004-06-16 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and light source apparatus thereof |
| CN102768433A (en) * | 2012-08-01 | 2012-11-07 | 友达光电股份有限公司 | Liquid crystal display equipment |
| CN106647030A (en) * | 2016-12-27 | 2017-05-10 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal displayer |
| CN106873241A (en) * | 2017-02-09 | 2017-06-20 | 青岛海信电器股份有限公司 | A kind of backlight module and liquid crystal display device |
| CN107490898A (en) * | 2017-08-14 | 2017-12-19 | 深圳市华星光电技术有限公司 | Side entrance back module and liquid crystal display device |
| CN108831333A (en) * | 2018-05-09 | 2018-11-16 | 合肥泰沃达智能装备有限公司 | A kind of ultra-thin LED advertisement cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047557A (en) * | 2022-06-20 | 2022-09-13 | 深圳市群宇科技有限公司 | Light guide plate with high refractive index |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113985654B (en) | 2023-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4779166A (en) | Illuminating apparatus | |
| US7845826B2 (en) | Multilayered integrated backlight illumination assembly | |
| WO2018059598A1 (en) | Light source assembly, display device, and manufacturing method for light source assembly | |
| US20090122227A1 (en) | Integrated backlight illumination assembly | |
| TW201332094A (en) | Double-side light emitting display panel | |
| CN201819070U (en) | Novel high power LED panel lamp | |
| CN202075944U (en) | Light-emitting diode (LED) display screen module | |
| WO2020237972A1 (en) | Backlight module and display device | |
| CN113985654A (en) | Display device with controllable light guide plate | |
| CN106597745A (en) | Backlight source used for liquid crystal television | |
| CN102194385B (en) | LED (Light-Emitting Diode) display screen module | |
| CN105005110A (en) | Quantum dot light guide plate, backlight module, and liquid crystal television | |
| CN209746315U (en) | Bottom light-emitting backlight source for mobile phone | |
| CN102396063A (en) | Transparent OLED device with high intensity | |
| CN201654393U (en) | Direct type ultrathin LED device | |
| KR20150102139A (en) | A backlight unit and a liquid crystal display device having the same | |
| CN209911714U (en) | Direct type backlight source | |
| CN103363501A (en) | LED bilateral luminous panel light with two-stage control | |
| CN209103051U (en) | Backlight module and liquid crystal display device | |
| JP3129980U (en) | Light source structure of backlight module | |
| CN218037598U (en) | High brightness module screen | |
| CN218675606U (en) | Side light-emitting lamp strip, backlight unit and electronic equipment | |
| CN215764769U (en) | High light efficiency wisdom solar energy electron light projector board | |
| CN215576022U (en) | Ultra-thin LED backlight plate | |
| CN113867047B (en) | Special-shaped backlight module and control method |
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 |