CN114815036B - Light guide plate, light guide plate assembly and light guide plate manufacturing method - Google Patents
Light guide plate, light guide plate assembly and light guide plate manufacturing method Download PDFInfo
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- CN114815036B CN114815036B CN202210549322.6A CN202210549322A CN114815036B CN 114815036 B CN114815036 B CN 114815036B CN 202210549322 A CN202210549322 A CN 202210549322A CN 114815036 B CN114815036 B CN 114815036B
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- 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
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- 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
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
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- 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
- G02B6/0055—Reflecting element, sheet or layer
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- 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
- G02B6/0065—Manufacturing aspects; Material aspects
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- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
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- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/009—Positioning aspects of the light source in the package
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light guide plate, a light guide plate assembly and a light guide plate manufacturing method, wherein the light guide plate comprises a light guide layer, a grating layer and a reflection grating layer, the grating layer and the reflection grating layer are respectively stuck and fixed on the front surface and the back surface of the light guide layer, a plurality of first micro prism columns are arranged on the back surface of the light guide layer, the front side and the back side edges of the reflection grating layer extend out of the light guide layer, and the front side and the back side of the reflection grating layer are bent and formed with first right-angle edges; the light guide plate assembly comprises a bottom plate and two light sources, wherein the inner side surface of the bottom plate is polished and formed with a reflecting surface, the edges of the front side and the rear side of the bottom plate are bent and formed with second right-angle edges, the left side and the right side of the bottom plate are formed with clearance grooves, and the two light sources are installed in the clearance grooves in a one-to-one corresponding clearance fit manner; the manufacturing method of the light guide plate comprises the following steps of 1, extruding plastic raw particles into a plate-shaped structure by using a plate extruding machine; step 2, machining an upper die and a lower die by a photoetching machine; and 3, placing the plate-shaped structure into a lower die, and manufacturing the light guide layer by using an extrusion device.
Description
Technical Field
The present invention relates to the field of light guide plates, and more particularly, to a light guide plate, a light guide plate assembly, and a method for manufacturing the light guide plate.
Background
The light guide plate is made of an optical acrylic/PC plate, and then a high-tech material with extremely high refractive index and no light absorption is used for printing light guide points on the bottom surface of the optical acrylic plate by using laser engraving, V-shaped cross grid engraving and UV screen printing technologies. The light emitted from the lamp is absorbed by the optical acrylic plate and stays on the surface of the optical acrylic plate, when the light rays are emitted to each light guide point, the reflected light can be diffused towards each angle, and then the reflection condition is destroyed and emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes.
When the light guide plate is applied to an LED liquid crystal display, since the liquid crystal cell itself does not emit light, a light source is required to illuminate the liquid crystal cell through the light guide plate, but the light guide plate on the market has the following drawbacks:
the bottom plate, the reflecting layer, the light guide layer, the light enhancement layer, the diffusion layer and the prism layer are required to be stacked together, so that the thickness is large, the development of the light and thin property of the display is not facilitated, the assembly is inconvenient, and the phenomenon of dirt easily occurs in the assembly process;
Light leakage easily occurs at the side edge of the light guide layer, so that the consumed energy consumption of the display is higher under the same brightness;
when the light source is close to the light guide layer, a light collecting point is easily formed on the liquid crystal unit, and the development of the light and thin property of the display is not facilitated.
Disclosure of Invention
The invention provides a technical scheme capable of solving the problems in order to overcome the defects of the prior art.
The utility model provides a light guide plate, including the light guide layer, grating layer and reflection grating layer paste respectively and fix the front and the back on the light guide layer, the left and right sides border on light guide layer all is provided with the light incident surface, the front on light guide layer is provided with the light exit surface, the grating layer covers the light exit surface setting, the back on light guide layer is provided with a plurality of miniature prism posts, the cross-section of miniature prism post is triangle-shaped structure, reflection grating layer covers a plurality of miniature prism post setting, the light guide layer setting is all extended to the front and back both sides border on reflection grating layer, the front and back both sides on reflection grating layer all buckling shaping has first right-angle limit, two first right-angle limit cladding are respectively at the front and back both sides border on light guide layer.
As a further scheme of the invention: the length direction of the first micro prism column and the light incidence surface are mutually perpendicular, the left side edge and the right side edge of the light emergence surface are respectively provided with a plurality of second micro prism columns, and the length direction of the first micro prism column and the length direction of the second micro prism column are mutually perpendicular.
As a further scheme of the invention: the section of the second micro prism column is in a continuous arc structure, and the refractive index of the first micro prism column is larger than that of the second micro prism column.
The light guide plate assembly is arranged on the light guide plate and comprises a bottom plate and two light sources, the inner side surface polishing of the bottom plate is provided with a light reflecting surface, the edges of the front side and the rear side of the bottom plate are bent to form second right-angle edges, the second right-angle edges are coated on the outer sides of the first right-angle edges in a one-to-one correspondence mode, the bottom plate is coated on the back surface of the reflection grating layer, the left side and the right side of the bottom plate are provided with light guide layers in an extending mode, the left side and the right side of the bottom plate are provided with clearance grooves in a one-to-one clearance fit mode, and the two light sources are arranged in the clearance grooves towards the light incident surface.
As a further scheme of the invention: the light source adopts the LED lamp strip, and the light source is close to the side of light incident surface and is provided with the light equalizing plate.
The light guide plate manufacturing method is used for manufacturing the light guide plate and comprises the following steps:
Step 1, manufacturing a light guide layer: placing plastic raw particles into a hopper of a plate extruding machine, extruding the plastic raw particles into a plate-shaped structure after heating at high temperature, and cutting the plate-shaped structure into a proper square size;
Step 2, processing an upper die and a lower die of the light guide layer die by utilizing a photoetching machine, wherein the left side and the right side in the upper die are provided with groove positions of second micro prism columns, and the lower die is provided with groove positions of first micro prism columns;
Step 3, assembling an upper die and a lower die into an extrusion device, putting the plate-shaped structure with the proper square size in the step 1 into the lower die, and extruding the plate-shaped structure by pressing down the upper die so as to manufacture a light guide layer with a first micro prism column and a second micro prism column;
And 4, processing the grating layer and the reflection grating layer by using a grating mold, wherein the front side and the rear side of the reflection grating layer are provided with first right-angle edges, the square sizes of the grating layer and the reflection grating layer are mutually corresponding to the light guide layer, and then bonding the light guide layer between the grating layer and the reflection grating layer by using bonding glue to form the light guide plate.
As a further scheme of the invention: and 3, heating the plate-shaped structure to the melting point temperature of the plastic primary particles before extrusion.
As a further scheme of the invention: and coating a dispersing agent on the upper surface of the grating layer.
Compared with the prior art, the invention has the beneficial effects that:
1. The grating layer and the reflection grating layer are respectively stuck to the two sides of the light guide layer, multi-layer assembly is not needed, dirt is prevented from appearing at the assembled gap, and the development of the light and thin property of the display is facilitated;
2. The reflection grating layer can be used for reflecting light, the grating layer diffracts transmitted light, the light source can be converted into linear light through the grating layer to illuminate the liquid crystal unit after irradiating the light guide layer through the light incidence surface, the liquid crystal unit is uniformly illuminated to realize screen display, and the reflection grating layer and the first right-angle side of the reflection grating layer can lighten the phenomenon of light leakage;
3. the second micro prism column can shield the light source, so that the light collecting point is prevented from being generated on the liquid crystal unit, the display effect is better, and the development of the light and thin property of the display is facilitated.
4. The light-reflecting surface on the inner side of the bottom plate and the second right-angle side can effectively prevent light leakage, and the light source can sink into the clearance slot for installation, so that the frame size of the display is reduced, and the development of a narrow frame of the display is facilitated.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of an explosive structure of the present invention.
The figure shows: 1. a light guide layer; 2. a grating layer; 3. a reflective grating layer; 4. a light incident surface; 5. a light exit surface; 6. a first microprism column; 7. a first right-angle side; 8. a second microprism column; 9. a light source; 10. a reflective surface; 11. a second right angle side; 12. a clearance slot is formed; 13. and (5) a light equalizing plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the light guide plate of the present invention includes a light guide layer 1, a grating layer 2 and a reflective grating layer 3, where the grating layer 2 and the reflective grating layer 3 are respectively adhered and fixed on the front and back surfaces of the light guide layer 1, the edges of the left and right sides of the light guide layer 1 are both provided with light incident surfaces 4, the front surface of the light guide layer 1 is provided with a light emergent surface 5, the grating layer 2 is arranged to cover the light emergent surface 5, the back surface of the light guide layer 1 is provided with a plurality of first microprism columns 6, the cross section of the first microprism columns 6 is in a triangle structure, the reflective grating layer 3 is arranged to cover the plurality of first microprism columns 6, the front and back side edges of the reflective grating layer 3 are both extended out of the light guide layer 1, the front and back sides of the reflective grating layer 3 are both bent and formed with first right-angle edges 7, and the two first right-angle edges 7 are respectively coated on the front and back sides of the light guide layer 1;
The principle is as follows: the light guide layer 1 is respectively stuck with the grating layer 2 and the reflection grating layer 3, multiple layers are not needed to be spliced, the phenomenon that the spliced gap is formed by dirt is avoided, the light and thin performance of the display is facilitated, the reflection grating layer 3 can be used for reflecting light, the grating layer 2 diffracts transmitted light, the light source 9 irradiates the light guide layer 1 through the light incidence surface 4 and then can be converted into linear light through the grating layer 2 to illuminate the liquid crystal unit, the uniform illumination of the liquid crystal unit is guaranteed, the screen display is realized, and the reflection grating layer 3 and the first right-angle side 7 thereof can lighten the phenomenon of light leakage.
As a further scheme of the invention: the length direction of the first micro prism column 6 and the light incidence surface 4 are mutually perpendicular, the edges of the left side and the right side of the light emergent surface 5 are respectively provided with a plurality of second micro prism columns 8, and the length direction of the first micro prism column 6 and the length direction of the second micro prism column 8 are mutually perpendicular; the second micro prism column 8 can shield the light source 9, avoid generating the condensing point on the liquid crystal unit, and has better display effect, thereby being beneficial to the development of the light and thin property of the display.
As a further scheme of the invention: the section of the second micro prism column 8 is in a continuous arc structure, and the refractive index of the first micro prism column 6 is larger than that of the second micro prism column 8.
The light guide plate assembly is arranged on the light guide plate and comprises a bottom plate and two light sources 9, wherein the inner side surface of the bottom plate is polished and formed with a reflecting surface 10, the edges of the front side and the rear side of the bottom plate are bent and formed with second right-angle edges 11, the second right-angle edges 11 are correspondingly coated on the outer sides of the first right-angle edges 7 one by one, the bottom plate is coated on the back surface of the reflection grating layer 3, the left side and the right side of the bottom plate are respectively provided with a light guide layer 1, the left side and the right side of the bottom plate are respectively formed with a clearance slot 12, the two light sources 9 are correspondingly arranged in the clearance slots 12 in a clearance fit manner, and the light sources 9 are arranged towards the light incident surface 4; the light-reflecting surface 10 on the inner side of the bottom plate and the second right-angle side 11 can effectively prevent light leakage, the light source 9 can sink into the clearance slot 12 for installation, the frame size of the display is reduced, and the development of the narrow frame of the display is facilitated.
As a further scheme of the invention: the light source 9 adopts an LED light bar, and a light equalizing plate 13 is arranged on one side of the light source 9, which is close to the light incident surface 4; the light source 9 irradiates the light incident surface 4 through the light equalizing plate 13, and a light collecting point is prevented from being formed on the light guiding layer 1.
The light guide plate manufacturing method is used for manufacturing the light guide plate and comprises the following steps:
Step 1, manufacturing a light guide layer 1: placing plastic raw particles into a hopper of a plate extruding machine, extruding the plastic raw particles into a plate-shaped structure after heating at high temperature, and cutting the plate-shaped structure into a proper square size;
Step 2, processing an upper die and a lower die of the light guide layer die by utilizing a photoetching machine, wherein the left side and the right side in the upper die are provided with groove positions of second micro prism columns 8, and the lower die is provided with groove positions of first micro prism columns 6;
step 3, assembling an upper die and a lower die into an extrusion device, putting the plate-shaped structure with proper square size in the step 1 into the lower die, and pressing the plate-shaped structure downwards by the upper die to manufacture the light guide layer 1 with the first micro prism column 6 and the second micro prism column 8;
And 4, processing the grating layer 2 and the reflection grating layer 3 by using a grating mold, wherein the front side and the rear side of the reflection grating layer 2 are provided with first right-angle edges 7, the square sizes of the grating layer 2 and the reflection grating layer 3 are mutually corresponding to the light guide layer 1, and then bonding the light guide layer 1 between the grating layer 2 and the reflection grating layer 3 by using bonding glue to form the light guide plate.
As a further scheme of the invention: and 3, heating the plate-shaped structure to the melting point temperature of the plastic primary particles before extrusion, and reducing the pressure required by extrusion molding.
As a further scheme of the invention: the upper surface of the grating layer 2 is coated with a dispersing agent, so that the grating layer 2 has the function of dispersing and atomizing light.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present invention, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention are all included in the scope of protection of the technical solution of the present invention.
Claims (7)
1. The light guide plate is characterized by comprising a light guide layer, a grating layer and a reflection grating layer, wherein the grating layer and the reflection grating layer are respectively stuck and fixed on the front surface and the back surface of the light guide layer, the edges of the left side and the right side of the light guide layer are respectively provided with a light incident surface, the front surface of the light guide layer is provided with a light emergent surface, the grating layer covers the light emergent surface and is provided with a plurality of first micro prism columns, the cross section of each first micro prism column is in a triangular structure, the reflection grating layer covers the plurality of first micro prism columns and is provided with a light guide layer, the front side and the back side edges of the reflection grating layer are respectively extended from the light guide layer, the front side and the back side of the reflection grating layer are respectively bent and formed with first right-angle edges, and the two first right-angle edges are respectively coated on the front side and the back side edges of the light guide layer;
The length direction of the first micro prism column and the light incidence surface are mutually perpendicular, the left side edge and the right side edge of the light emergence surface are respectively provided with a plurality of second micro prism columns, and the length direction of the first micro prism column and the length direction of the second micro prism column are mutually perpendicular.
2. The light guide plate of claim 1, wherein the cross section of the second microprism posts is in a continuous circular arc configuration, and the refractive index of the first microprism posts is greater than the refractive index of the second microprism posts.
3. The light guide plate assembly is installed on a light guide plate according to any one of claims 1-2, and is characterized by comprising a bottom plate and two light sources, wherein the inner side surface of the bottom plate is polished and formed with a reflecting surface, the edges of the front side and the rear side of the bottom plate are bent and formed with second right-angle edges, the second right-angle edges are correspondingly coated on the outer sides of the first right-angle edges, the bottom plate is coated on the back surface of the reflecting grating layer, the left side and the right side of the bottom plate are respectively extended and provided with a light guide layer, the left side and the right side of the bottom plate are respectively formed with a clearance slot, the two light sources are correspondingly installed in the clearance slots in a clearance fit manner, and the light sources are arranged towards the light incident surface.
4. A light guide plate assembly according to claim 3, wherein the light source is an LED light bar, and a light equalizing plate is disposed on a side of the light source adjacent to the light incident surface.
5. A light guide plate manufacturing method for manufacturing a light guide plate according to any one of claims 1 to 2, comprising the steps of:
Step 1, manufacturing a light guide layer: placing plastic raw particles into a hopper of a plate extruding machine, extruding the plastic raw particles into a plate-shaped structure after heating at high temperature, and cutting the plate-shaped structure into a proper square size;
Step 2, processing an upper die and a lower die of the light guide layer die by utilizing a photoetching machine, wherein the left side and the right side in the upper die are provided with groove positions of second micro prism columns, and the lower die is provided with groove positions of first micro prism columns;
Step 3, assembling an upper die and a lower die into an extrusion device, putting the plate-shaped structure with the proper square size in the step 1 into the lower die, and extruding the plate-shaped structure by pressing the upper die downwards so as to manufacture a light guide layer with a first micro prism column and a second micro prism column;
And 4, processing the grating layer and the reflection grating layer by using a grating mold, wherein the front side and the rear side of the reflection grating layer are provided with first right-angle edges, the square sizes of the grating layer and the reflection grating layer are mutually corresponding to the light guide layer, and then bonding the light guide layer between the grating layer and the reflection grating layer by using bonding glue to form the light guide plate.
6. The method of manufacturing a light guide plate according to claim 5, wherein the plate-like structure is heated to a melting point temperature of the plastic raw particles before the pressing in step 3.
7. The method of manufacturing a light guide plate according to claim 5, wherein a diffusion agent is coated on an upper surface of the grating layer.
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| CN202210549322.6A CN114815036B (en) | 2022-05-20 | 2022-05-20 | Light guide plate, light guide plate assembly and light guide plate manufacturing method |
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| CN202210549322.6A CN114815036B (en) | 2022-05-20 | 2022-05-20 | Light guide plate, light guide plate assembly and light guide plate manufacturing method |
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| CN114815036B true CN114815036B (en) | 2024-05-31 |
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Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609681A (en) * | 2003-10-18 | 2005-04-27 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| JP2006120484A (en) * | 2004-10-22 | 2006-05-11 | Toppan Printing Co Ltd | Backlight unit |
| CN101158785A (en) * | 2007-11-21 | 2008-04-09 | 京东方科技集团股份有限公司 | Side light type back light source module |
| CN101178513A (en) * | 2006-11-09 | 2008-05-14 | 三星电子株式会社 | backlight unit |
| CN101614342A (en) * | 2009-08-12 | 2009-12-30 | 友达光电股份有限公司 | Light source module and display module |
| CN101718417A (en) * | 2009-11-11 | 2010-06-02 | 友达光电股份有限公司 | Liquid crystal display and light guide plate thereof |
| CN102326020A (en) * | 2009-03-06 | 2012-01-18 | 夏普株式会社 | Planar illumination device and display device provided with the same |
| CN102809105A (en) * | 2012-08-22 | 2012-12-05 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN202927756U (en) * | 2012-11-29 | 2013-05-08 | 四川长虹光电有限公司 | Installing structure for light guide plate and reflecting sheet of LED (light emitting diode) liquid crystal screen |
| CN103862618A (en) * | 2012-12-14 | 2014-06-18 | 纬创资通股份有限公司 | Method and jig for manufacturing light guide plate and related light guide plate |
| CN104090326A (en) * | 2014-06-11 | 2014-10-08 | 东莞市现代精工实业有限公司 | Light guide plate with uniform light emitting brightness |
| CN206818904U (en) * | 2017-05-17 | 2017-12-29 | 锦湖光电(深圳)有限公司 | Composite construction bright enhancement film and backlight module |
| CN207096639U (en) * | 2017-06-26 | 2018-03-13 | 南京中电熊猫平板显示科技有限公司 | A kind of backlight module |
| CN108227068A (en) * | 2018-01-05 | 2018-06-29 | 京东方科技集团股份有限公司 | Side entrance back module and display device |
| CN108562965A (en) * | 2018-01-10 | 2018-09-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN108688121A (en) * | 2018-06-22 | 2018-10-23 | 合肥泰沃达智能装备有限公司 | A kind of composite light guide plate substrate heat extrusion formation equipment and its processing method |
| CN109212660A (en) * | 2018-10-26 | 2019-01-15 | 合肥京东方光电科技有限公司 | Leaded light component, light collimator assembly, backlight module and display device |
| CN109541738A (en) * | 2018-11-12 | 2019-03-29 | 合肥京东方光电科技有限公司 | Light guide plate and preparation method thereof, backlight module, display device |
| CN210401732U (en) * | 2019-09-30 | 2020-04-24 | 扬昕科技(苏州)有限公司 | Light guide plate and light source module |
-
2022
- 2022-05-20 CN CN202210549322.6A patent/CN114815036B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609681A (en) * | 2003-10-18 | 2005-04-27 | 鸿富锦精密工业（深圳）有限公司 | Backlight module |
| JP2006120484A (en) * | 2004-10-22 | 2006-05-11 | Toppan Printing Co Ltd | Backlight unit |
| CN101178513A (en) * | 2006-11-09 | 2008-05-14 | 三星电子株式会社 | backlight unit |
| CN101158785A (en) * | 2007-11-21 | 2008-04-09 | 京东方科技集团股份有限公司 | Side light type back light source module |
| CN102326020A (en) * | 2009-03-06 | 2012-01-18 | 夏普株式会社 | Planar illumination device and display device provided with the same |
| CN101614342A (en) * | 2009-08-12 | 2009-12-30 | 友达光电股份有限公司 | Light source module and display module |
| CN101718417A (en) * | 2009-11-11 | 2010-06-02 | 友达光电股份有限公司 | Liquid crystal display and light guide plate thereof |
| CN102809105A (en) * | 2012-08-22 | 2012-12-05 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN202927756U (en) * | 2012-11-29 | 2013-05-08 | 四川长虹光电有限公司 | Installing structure for light guide plate and reflecting sheet of LED (light emitting diode) liquid crystal screen |
| CN103862618A (en) * | 2012-12-14 | 2014-06-18 | 纬创资通股份有限公司 | Method and jig for manufacturing light guide plate and related light guide plate |
| CN104090326A (en) * | 2014-06-11 | 2014-10-08 | 东莞市现代精工实业有限公司 | Light guide plate with uniform light emitting brightness |
| CN206818904U (en) * | 2017-05-17 | 2017-12-29 | 锦湖光电(深圳)有限公司 | Composite construction bright enhancement film and backlight module |
| CN207096639U (en) * | 2017-06-26 | 2018-03-13 | 南京中电熊猫平板显示科技有限公司 | A kind of backlight module |
| CN108227068A (en) * | 2018-01-05 | 2018-06-29 | 京东方科技集团股份有限公司 | Side entrance back module and display device |
| CN108562965A (en) * | 2018-01-10 | 2018-09-21 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN108688121A (en) * | 2018-06-22 | 2018-10-23 | 合肥泰沃达智能装备有限公司 | A kind of composite light guide plate substrate heat extrusion formation equipment and its processing method |
| CN109212660A (en) * | 2018-10-26 | 2019-01-15 | 合肥京东方光电科技有限公司 | Leaded light component, light collimator assembly, backlight module and display device |
| CN109541738A (en) * | 2018-11-12 | 2019-03-29 | 合肥京东方光电科技有限公司 | Light guide plate and preparation method thereof, backlight module, display device |
| CN210401732U (en) * | 2019-09-30 | 2020-04-24 | 扬昕科技(苏州)有限公司 | Light guide plate and light source module |
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|---|---|
| CN114815036A (en) | 2022-07-29 |
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