CN113985654B - Display device with controllable light guide light plate - Google Patents
Display device with controllable light guide light plate Download PDFInfo
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- CN113985654B CN113985654B CN202111226807.3A CN202111226807A CN113985654B CN 113985654 B CN113985654 B CN 113985654B CN 202111226807 A CN202111226807 A CN 202111226807A CN 113985654 B CN113985654 B CN 113985654B
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- light guide
- guide plate
- liquid crystal
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- plate body
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- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a display device with a controllable light guide plate, which comprises a light guide plate body, an outer frame and a fixing seat, wherein the light guide plate body comprises a light inlet layer, a liquid crystal layer and a bonding layer, one side of the light inlet layer is provided with a plurality of lattice points, one side of the light inlet layer, which is far away from the lattice points, is provided with a plurality of grooves, and a heat dissipation mechanism for dissipating heat of the light guide plate body is arranged in the fixing seat; the invention makes the light guide plate body uniformly emit light through the arranged irregularly arranged lattice points, and the grooves arranged in a matrix are arranged, so as to avoid Newton rings and interference patterns generated among the lattice points, the liquid crystal layer and the liquid crystal screen, influence the use effect of the display device, and control the motion state of liquid crystal through the arranged liquid crystal control panel, thereby controlling the intensity of light emission and playing the effect of controlling light.
Description
Technical Field
The invention relates to the technical field of light guide plates, in particular to a display device with a controllable light guide plate.
Background
At present, only a direct type liquid crystal display and an OLED have a light control function, the thickness of the common direct type liquid crystal display is very thick, the effect is general although regional light control can be achieved, the prices of a mini LED and a micro LED are very high, the side-in type liquid crystal display has no regional light control effect, the color saturation and the contrast are low, the display effect is poor, a heat dissipation component is not arranged, the internal temperature of the display is higher when the regional light control operation is carried out, the service life of an internal electric device can be influenced, dust can be adsorbed on the surface of the display during operation, and the heat dissipation effect is further influenced.
Disclosure of Invention
The invention solves the problems that:
(1) The existing side-entry liquid crystal display has no partition light control effect, so that the color saturation and contrast ratio are low, and the display effect is poor;
(2) The existing display is not provided with a heat dissipation component, when the display is used for regional light control operation, the internal temperature is high, the service life of an internal electric device can be influenced, dust can be adsorbed on the surface of the display during operation, and the heat dissipation effect is further influenced.
The invention aims to solve the defects in the prior art and provides a display device with a controllable light guide plate.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a display device with controllable light guide light board, includes light guide plate body, frame and fixing base, the light guide plate body is including going into optical layer, liquid crystal layer and laminating layer, and a plurality of lattice points have been seted up to one side of going into optical layer, and a plurality of recesses have been seted up to one side that the lattice point was kept away from to the optical layer, are equipped with in the fixing base and are 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 each groove is far larger than that of each lattice point, and the distance between every two adjacent grooves is smaller than that between every two adjacent lattice points.
As a further technical scheme of the invention, the liquid crystal layer is fixed on one side of the light inlet layer, which is provided with the groove, the bonding 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 bonding layer, which is far away from the liquid crystal layer.
As a further technical scheme of the invention, white paper is fixed on one side of the light incident layer provided with the mesh points, a backboard is fixed on one side of the white paper away from the light incident layer, and a liquid crystal screen is fixed on one side of the composite film away from the laminating layer.
As a further technical scheme of the invention, the lower ends of the liquid crystal screen and the backboard are fixedly connected with the fixing seat, an inner cavity is formed in the fixing seat, the lower end of the light guide plate body penetrates into the inner cavity, the junction box is fixed at the lower end of the light guide plate body, the lower end of the light guide plate body penetrates into the junction box, the light bar is fixed at the lower end of the light guide plate body, and the lower end of the light guide plate body is electrically connected with the liquid crystal control panel.
As a further technical scheme of the invention, the outer frame comprises a pair of side plates and a top plate, the lower end face of each side plate is fixedly provided with a plugboard, one end of each plugboard is inclined, one side of each plugboard, which is close to the light guide plate body, is fixedly provided with a plurality of bulges, both sides of each plugboard are provided with positioning sliding grooves, and the upper end face of each fixing seat is provided with a jack matched with the plugboard.
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, a plurality of first through holes are formed in the upper end face of the fixing base, and an opening plate is movably arranged on one side end face of the fixing base.
As a further technical scheme of the invention, two air deflectors are obliquely arranged at the bottom of the top plate, a plurality of air guide holes are formed in the air deflectors, and a plurality of second through holes are formed in the upper end face of the top plate.
The invention has the beneficial effects that:
1. the light guide plate body uniformly emits light through the arranged irregular lattice points, and the grooves which are arranged in a matrix are arranged through the arrangement, so that Newton rings and interference patterns are prevented from being generated among the lattice points, the liquid crystal layer and the liquid crystal screen, the using effect of the display device is affected, the motion state of liquid crystal is controlled through the arranged liquid crystal control panel, the intensity of light emitted is controlled, and the effect of light control is achieved.
2. Through aviation baffle, wind-guiding hole and the radiator fan of setting, when radiator fan during operation, the air current passes through first through-hole upward movement, and partial air current still can pass through the wind-guiding hole, and the bottom of entering into the roof through the aviation baffle, and the bottom of follow roof again passes through the second through-hole upward diffusion, in the whole motion process of air current, plays radiating effect to this display device on the one hand, on the other hand can blow away the dust of absorption on this display device, the effectual practicality that has improved this display device.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic diagram of a light guide plate according to the present invention;
FIG. 3 is a cross-sectional view of a light guide plate body and a liquid crystal display according to the present invention;
FIG. 4 is a schematic diagram illustrating the connection of the board and the side board 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 an air deflector in the present invention.
In the figure: 1. a light guide plate body; 2. an outer frame; 3. a fixing seat; 4. a light entering layer; 5. a liquid crystal layer; 6. a bonding layer; 7. dots; 8. a groove; 9. a heat dissipation mechanism; 10. a composite membrane; 11. white paper; 12. a back plate; 13. a liquid crystal panel; 14. a junction box; 15. a light bar; 16. a side plate; 17. a top plate; 18. inserting plate; 19. a protrusion; 20. positioning a chute; 21. a heat radiation fan; 22. an opening plate; 23. an air deflector; 24. and the air guide hole.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-6, a display device with a controllable light guide plate comprises a light guide plate body 1, an outer frame 2 and a fixing seat 3, wherein the light guide plate body 1 comprises a light inlet layer 4, a liquid crystal layer 5 and a bonding layer 6, one side of the light inlet 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 between 50 μm and 150 μm, the depth is between 30 μm and 60 μm, and the purpose of the dots 7 is to make the light guide plate body 1 uniformly emit light.
The light-in layer 4 is far away from one side of the net point 7 and is provided with a plurality of grooves 8, the grooves 8 are arranged in a matrix, the shape of each groove 8 is similar to that of a triangular prism, the size of each groove 8 is far larger than that of the net point 7, the distance between every two adjacent grooves 8 is smaller than that between every two adjacent net points 7, the arrangement mode and the size of each groove 8 are used for avoiding Newton rings and interference patterns generated among the net point 7, the liquid crystal layer 5 and the liquid crystal screen 13, the direction of the side edges of each groove 8 is required to be parallel to the light-in direction, otherwise, light cannot reach the end of the light-in 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 entering layer 4, which is provided with a groove 8, the motion state of liquid crystal is controlled through an electric signal, so that the intensity of light is controlled, the bonding 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 bonding layer 6 is not lower than that of the light entering layer 4, and is more similar and better, otherwise, partial light can be totally reflected and cannot be emitted from the light entering layer 4, so that the whole brightness of the display device is low, one surface of the bonding layer 6 is bonded with the groove 8 side of the light entering layer 4, the bonding mode is two, one is frame bonding, the bonding layer 6 is bonded with four sides of the groove 8 surface of the light entering layer 4, gaps cannot exist when the surface of the bonding layer 6 is tightly bonded with the side surface of the groove 8, and the liquid crystal cannot flow between the two bonding surfaces; the other is full paste, the whole surface of the groove 8 side of the light entering layer 4 is attached with the adhesive layer, then the adhesive layer is attached with the attaching layer 6, the adhesive layer above the groove 8 needs to be removed, and the adhesive layer is not contacted with liquid crystal.
The laminating layer 6 is fixed with the complex film 10 far away from one side of liquid crystal layer 5, and the light-entering layer 4 is offered one side of site 7 and is fixed with white reflection paper 11, and white reflection paper 11 is kept away from one side of light-entering layer 4 and is fixed with backplate 12, and white reflection paper 11 whole face is laminated with backplate 12 entirely, and accuse light guide plate frame pastes on white reflection paper 11, and white reflection paper 11 need be frosted with accuse light guide plate laminating one side, avoids producing the adsorption between white reflection paper 11 and the accuse light guide plate.
One side of the composite film 10 far away from the attaching layer 6 is fixed with a liquid crystal screen 13, one side of the composite film 10 of the liquid crystal screen 13 and the light control light guide plate is attached in a frame attaching mode, the lower ends of the liquid crystal screen 13 and 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, the position of the light bar 15 is aligned with the position of the light control light guide plate light inlet layer 4 in a centering mode, and a liquid crystal control plate is electrically connected at the lower end of the light guide plate body 1.
The frame 2 includes a pair of curb plate 16 and roof 17, the both sides of roof 17 respectively with curb plate 16 fixed connection, the lower terminal surface of every curb plate 16 all is fixed with picture peg 18, the one end of picture peg 18 is the slope form, be convenient for insert picture peg 18 in the jack, one side that picture peg 18 is close to light guide plate body 1 is fixed with a plurality of archs 19, the shrinkage pool that a plurality of cooperation archs 19 used has been seted up on the lateral wall of jack, carry out the block to picture peg 18 inserted in the jack fixedly, prevent picture peg 18 and curb plate 16 rock, influence holistic result of use, location spout 20 has all been seted up to the both sides of picture peg 18, the jack that the cooperation picture peg 18 used has been seted up to the up end of fixing base 3.
The fixing base 3 is internally provided with the 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 to the bottom of the inner cavity, a plurality of first through holes are formed in the upper end face of the fixing base 3, an opening and closing plate 22 is movably arranged on one side end face of the fixing base 3, when parts in the inner cavity need to be replaced and maintained, only the push button is needed to be pressed, the opening and closing plate 22 is opened, an operator does not need to disassemble each fastening bolt, the bottom of the top plate 17 is obliquely provided with two air deflectors 23, a plurality of air guide holes 24 are formed in the air deflectors 23, a plurality of second through holes are formed in the upper end face of the top plate 17, when the heat dissipation fans 21 work, upward flowing air flow is generated, part of the air flow also flows upward through the air guide holes 24, penetrates through the air deflectors 23 to the bottom of the top plate 17, and then upward diffuses from the bottom of the top plate 17 through the second through holes, in the whole movement process of the air flow, on one side, the effect of heat dissipation is achieved for the display device, on the other side, dust adsorbed on the display device can be blown away, and the practicability of the display device is effectively improved.
When the display device is in use, the plugboard 18 is inserted into the plughole, so that the two side plates 16 and the top plate 17 are sleeved on the outer side of the display device, the display device is protected, when the cooling fan 21 works, air flows upwards through the first through holes, part of the air flows also pass through the air guide holes 24 and pass through the air guide plates 23 to enter the bottom of the top plate 17, then the air flows upwards diffuse through the second through holes from the bottom of the top plate 17, the effect of cooling the display device is achieved on one hand, dust adsorbed on the display device can be blown away on the other hand in the whole movement process of the air flows, 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, and the liquid crystal control panel controls the movement state of liquid crystal through electric signals, so that the light emitting intensity is controlled, and the effect of light control is achieved.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a display device with controllable light guide light board, includes light guide plate body (1), frame (2) and fixing base (3), its characterized in that, light guide plate body (1) is including income optical layer (4), liquid crystal layer (5) and laminating layer (6), and a plurality of net points (7) have been seted up to one side of income optical layer (4), and a plurality of recesses (8) have been seted up to one side that goes away from net point (7) of income optical layer (4), are equipped with in fixing base (3) and are used for carrying out radiating heat dissipation mechanism (9) to light guide plate body (1);
the liquid crystal layer (5) is fixed on one side of the light entering layer (4) provided with the groove (8), the bonding layer (6) is fixed on one side of the liquid crystal layer (5) far away from the groove (8), and the composite film (10) is fixed on one side of the bonding layer (6) far away from the liquid crystal layer (5);
the light incident layer (4) is provided with white reflection paper (11) fixed on one side of the mesh point (7), a backboard (12) is fixed on one side of the white reflection paper (11) far away from the light incident layer (4), and a liquid crystal screen (13) is fixed on one side of the composite film (10) far away from the laminating layer (6);
the liquid crystal display comprises a liquid crystal screen (13) and a backboard (12), wherein the lower end of the liquid crystal screen (13) is fixedly connected with a fixing seat (3), an inner cavity is formed in the fixing seat (3), the lower end of a 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 lamp strip (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);
the heat dissipation mechanism (9) comprises a plurality of heat dissipation fans (21) fixedly connected to the bottom of the inner cavity, a plurality of first through holes are formed in the upper end face of the fixing base (3), and an opening plate (22) is movably arranged on one side end face of the fixing base (3).
2. A display device with a controllable light guide plate according to claim 1, characterized in that the grooves (8) are arranged in a matrix, the size of the grooves (8) being much larger than the size of the dots (7), the pitch of adjacent grooves (8) being smaller than the pitch of adjacent dots (7).
3. The display device with the 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), a plugboard (18) is fixed on the lower end face of each side plate (16), one end of each plugboard (18) is inclined, a plurality of protrusions (19) are fixed on one side, close to the light guide plate body (1), of each plugboard (18), positioning sliding grooves (20) are formed in two sides of each plugboard (18), and insertion holes matched with the plugboard (18) are formed in the upper end face of the fixing seat (3).
4. A display device with a controllable light guiding plate according to claim 3, characterized in that the bottom of the top plate (17) is obliquely provided with two air guiding plates (23), a plurality of air guiding holes (24) are arranged in the air guiding plates (23), and a plurality of second through holes are arranged on 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 |
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| Publication Number | Publication Date |
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| CN113985654A CN113985654A (en) | 2022-01-28 |
| CN113985654B true CN113985654B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111226807.3A Active CN113985654B (en) | 2021-10-21 | 2021-10-21 | Display device with controllable light guide light plate |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (7)
| 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 |
| 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 |
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2021
- 2021-10-21 CN CN202111226807.3A patent/CN113985654B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN113985654A (en) | 2022-01-28 |
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