CN201803231U - Light guide plate with diffusion or brightness-increasing effects - Google Patents
Light guide plate with diffusion or brightness-increasing effects Download PDFInfo
- Publication number
- CN201803231U CN201803231U CN2010202671313U CN201020267131U CN201803231U CN 201803231 U CN201803231 U CN 201803231U CN 2010202671313 U CN2010202671313 U CN 2010202671313U CN 201020267131 U CN201020267131 U CN 201020267131U CN 201803231 U CN201803231 U CN 201803231U
- Authority
- CN
- China
- Prior art keywords
- micro
- lgp
- structurals
- diffusion
- those
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model provides a light guide plate with diffusion or brightness-increasing effects. The light guide plate is arranged inside a side backlight module and used for guiding the light emitted from at least one light source. The light guide plate comprises at least one light incident surface, a light emergent surface and a bottom surface, wherein the light incident surface is positioned on one of the sides of the light guide plate and is adjacent to the light source; the light emergent surface includes a plurality of first microstructures which are arranged on the light emergent surface; and the bottom surface and the light emergent surface are respectively positioned on the two corresponding surfaces of the light guide plate, and the bottom surface includes a plurality of second microstructures which are arranged on the bottom surface. Therefore, the light guide plate provided by the utility model has the light condensing and equalizing effects simultaneously.
Description
Technical field
The utility model relates to a kind of LGP, particularly about a kind of LGP with diffusion or brightening effect.
Background technology
In recent years, because the manufacturing cost of LCD reduces significantly, so LCD becomes family's TV and the computer main flow with screen gradually.In addition, because LCD uses the TV of cathode-ray tube light more, thin more traditionally, therefore, public places such as hospital, convenience store or cinema at the train station,, can find increasing LCD, this LCD not only can be used for the demonstration of message, also can be used for the purpose of advertisement, and its coml is used and can be said so more and more widely.
Traditionally, LCD need provide light source by backlight module, and therefore undersized LCD uses side type backlight module mostly because screen is less.Consult Fig. 1, Fig. 1 is traditional side type backlight module schematic diagram.As shown in Figure 1, a side type backlight module 7, it includes a LGP 71, two lamp sources 72, two lampshades 73, a diffusion barrier 74, a reflector plate 75 and a brightness enhancement film 76.Wherein, those lamp sources 72 are in order to emit beam.This LGP 71 includes an exiting surface 71A and a bottom surface 71C.Two lamp sources 72 are arranged at the limit, the left and right sides of this LGP 71 respectively, in order to ray cast to these LGP 71 inside.A part enters the light of these LGP 71 inside, can be penetrated by the bottom surface 71C of this LGP 71, reenters this LGP 71 via the reflection of this reflector plate 75 again; The light of another part then can directly penetrate via the exiting surface 71A of this LGP 71, and then via after the mixed light of this diffusion barrier 74, the diffusion, enters these brightness enhancement film 76 optically focused, improves briliancy, and row penetrates again.So, this side type backlight module 7 can provide LCD one backlight.
Yet this diffusion barrier 74 and the cost that this brightness enhancement film 76 adds up to account for three one-tenths to four one-tenth of this side type backlight module 7, can't reduce the cost of diffusion barrier 74 and brightness enhancement film 76 during the production and assembly backlight module.Also have, use this diffusion barrier 74 and brightness enhancement film 76, the thickness of whole side type backlight module 7 can't be descended further, be unfavorable for slimming.
The utility model content
The utility model main purpose in the production and assembly that solve side type backlight module, its diffusion barrier and the too high problem of brightness enhancement film cost.
Another purpose of the utility model reaches the requirement of slimming at the thickness that reduces this side type backlight module.
In order to reach above-mentioned purpose, the utility model provides a kind of LGP with diffusion or brightening effect, and this LGP is in order to being arranged on a side type backlight module inside, and in order to guide the emitted light at least one lamp source; This LGP includes at least one incidence surface, an exiting surface and a bottom surface, and this incidence surface is positioned at a wherein side of this LGP, and with this adjacent setting in lamp source.Include a plurality of first micro-structurals on this exiting surface, those first micro-structurals are arranged on this exiting surface.This bottom surface lays respectively at the corresponding two sides of this LGP with this exiting surface, and includes a plurality of second micro-structurals on this bottom surface, and those second micro-structurals are arranged on this bottom surface.Thus, this LGP can have the effect of optically focused and uniform light simultaneously.
Aforesaid LGP with diffusion or brightening effect, wherein, those first micro-structurals are water chestnut mirror post, circular arc post, circular arc particle or taper particle, and those first micro-structurals protrude from the exiting surface of this LGP.
Aforesaid LGP with diffusion or brightening effect, wherein, those second micro-structurals are water chestnut mirror post, circular arc post, circular arc particle or taper particle, and the bottom surface of recessed this LGP of those second micro-structurals.
Aforesaid LGP with diffusion or brightening effect, wherein, those first micro-structurals or those second micro-structurals are close to each other.
Aforesaid LGP with diffusion or brightening effect, wherein, those first micro-structurals or those second micro-structurals are regularly arranged.
Aforesaid LGP with diffusion or brightening effect, wherein, the appearance of this bottom surface and this second micro-structural is coated with a reflecting layer.
Thus, the utlity model has the diffusion or the LGP of brightening effect, the lower grade of can arranging in pairs or groups, more cheap diffusion barrier or brightness enhancement film are made to save, assembly cost; Even the setting of omitting diffusion barrier and brightness enhancement film fully to reduce the thickness of side type backlight module further, reaches purpose of thinness.
Description of drawings
Fig. 1 is traditional side type backlight module schematic diagram;
Fig. 2 is the application schematic diagram of the LGP of the utility model first embodiment;
Fig. 3 is the micro-structural schematic diagram of the utility model second embodiment;
Fig. 4 is the micro-structural schematic diagram of the utility model the 3rd embodiment;
Fig. 5 is the micro-structural schematic diagram of the utility model the 4th embodiment;
Fig. 6 is the micro-structural schematic diagram of the utility model the 5th embodiment;
Fig. 7 is the micro-structural schematic diagram of the utility model the 6th embodiment.
Among the figure:
7 side type backlight modules, 71 LGPs, 71A exiting surface, 71C bottom surface, 72 lamp sources, 73 lampshades, 74 diffusion barriers, 75 reflector plates, 76 brightness enhancement film;
1 side type backlight module, 11 LGPs, 11A exiting surface, 11B incidence surface, the 11C bottom surface, 111 first micro-structurals, 112,212,312,412,512,612 second micro-structurals, 1121 micro-structurals, 12 lamp sources, 13 lampshades, 15 reflector plates, L1, L2, L3, L4, L5 connecting line.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
Consult Fig. 2, Fig. 2 is the application schematic diagram of the LGP of the utility model first embodiment.As shown in Figure 2, a side type backlight module 1, it includes a LGP 11, two lamp sources 12, two lampshades 13 and a reflector plate 15.Wherein, those lamp sources 12 provide light energy in order to emit beam; This lamp source 12 can be cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) or light emitting diode (Light Emitting Diode, lamp bar LED).This LGP 11 is in order to guiding the emitted light in those lamp sources 12, and this LGP 11 includes two incidence surface 11B, an exiting surface 11A and a bottom surface 11C; Two incidence surface 11B lay respectively at the limit, the left and right sides of this LGP 11, this exiting surface 11A and this bottom surface 11C lay respectively at this LGP 11 upper and lower surface and in correspondence with each other.This reflector plate 15 is positioned at the bottom surface 11C outside of this LGP 11.Two lamp sources 12 are separately positioned on the two incidence surface 11B outside of this LGP 11, and it is other to be in close proximity to two incidence surface 11B; Utilize the emitted light in this lamp source of this lampshade 13 reflections 12, can be with ray cast to these LGP 11 inside.
Shown in the enlarged drawing of Fig. 2, include a plurality of first micro-structurals 111 on this exiting surface 11A, include a plurality of second micro-structurals 112 on the 11C of this bottom surface.The water chestnut mirror post that those first micro-structurals 111 are indentation, and protrude from the exiting surface 11A of this LGP 11, a plurality of first micro-structurals 111 are horizontally arranged on this exiting surface 11A with being closely adjacent to each other, and its purpose is to assemble, convergent light rays, makes the light that penetrates this LGP 11 can increase briliancy.Those second micro-structurals 112 are circular-arc, and the bottom surface 11C of recessed this LGP 11, a plurality of second micro-structurals 112 are horizontally arranged on the 11C of this bottom surface at each interval, each second micro-structural 112 more includes a plurality of superfine little inferior micro-structurals 1121, its purpose is to destroy the direct of travel of light, in order to produce the mixed light effect of light diffusion, make this LGP 11 produce the preferable optics uniformity.Thus, this LGP 11 can have the effect of optically focused and uniform light simultaneously, and the use that therefore this side type backlight module 1 can omit diffusion barrier and brightness enhancement film, perhaps uses diffusion barrier, the brightness enhancement film of lower grade.So, the utility model can reach manufacturing, the assembly cost that reduces this side type backlight module 1, or reduces the thickness of this side type backlight module 1, reaches economical, cheap and purpose of thinness simultaneously.In addition, generally speaking, this LGP 11 can polymethyl methacrylate (Polymethylmethacrylate, PMMA), polyethylene terephthalate (Polyethylene Terephthalate, PET), Merlon (Polycarbonate, PC), Triafol T (Tri-acetyl Cellulose, TAC), copolymer of methyl methacrylatestyrene (Methylmethacrylate styrene), polystyrene (Polystyrene, PS) or cyclenes copolymer (Cyclic Olefin Copolymer is COC) as material.The profile of this first micro-structural 111, second micro-structural 112 and time micro-structural 1121 then can utilize extrusion (Extrusion), casting (Casting), ejection formation (Injection) or roller technology (Roll-to-Roll), and the technology of the atomizings such as sandblast, texture, screen printing of arranging in pairs or groups is again made.So, can receive purpose a large amount of, that make fast.
Certainly, this area has knows that usually the knowledgeable also can be coated with a reflecting layer (not illustrating) in the appearance of this bottom surface 11C and this second micro-structural 112, and its purpose is further to reduce light and penetrates from this bottom surface 11C.Also have, if simultaneously coating reflection layer with a plurality of very tiny inferior micro-structurals 1121 are set, can make the optics diffusion effect of this LGP 11 force the into optical effect of conventional diffusion film.In addition, the distribution density of those second micro-structurals 112, the perhaps granular size of those times micro-structural 1121, distribution density, the distance in all visual itself and lamp source 12 and adjusting, any one that makes this LGP 11 all has the optics uniformity and the briliancy that approximately equates.
The LGP that the utlity model has diffusion or brightening effect also has other embodiment.Consult Fig. 3, Fig. 3 is the micro-structural schematic diagram of the utility model second embodiment.As shown in Figure 3, those second micro-structurals 212 are the circular arc post, and a plurality of second micro-structural 212 be closely adjacent to each other ground transversely arranged.
Consult Fig. 4, Fig. 4 is the micro-structural schematic diagram of the utility model the 3rd embodiment.As shown in Figure 4, those second micro-structurals 312 are circular granular, and a plurality of second micro-structural 312 is regularly arranged at each interval, and the mode of its arrangement is orthogonal thereto mode; That is to say that connecting line L1, the L2 of two adjacent second micro-structurals 312 can distinguish in vertical direction or horizontal direction.
Consult Fig. 5, Fig. 5 is the micro-structural schematic diagram of the utility model the 4th embodiment.As shown in Figure 5, the arrangement mode of those second micro-structurals 412 is the mode of oblique; That is to say that connecting line L3, the L4 of two adjacent second micro-structurals 412, L5 can distinguish in horizontal direction and incline direction.In this figure, this connecting line L3, L4, L5 are encircled into an acute triangle.
Consult Fig. 6, Fig. 6 is the micro-structural schematic diagram of the utility model the 5th embodiment.As shown in Figure 6, those second micro-structurals 5 12 are for being oblique and regularly arranged a plurality of oval particle.
Consult Fig. 7, Fig. 7 is the micro-structural schematic diagram of the utility model the 6th embodiment.As shown in Figure 7, those second micro-structurals 612 are the taper particle; At this, the taper particle of this figure is a quadrangular pyramid.
Fig. 3～Fig. 7 is described as mentioned above, is the different embodiment of second micro-structural, yet this area has knows that usually the knowledgeable can certainly be designed to similar profile the shape of first micro-structural.So can make LGP of the present utility model have more structural and change, increase diversity and elasticity on using.
In sum, the utlity model has the diffusion or the LGP of brightening effect, the lower grade of can arranging in pairs or groups, more cheap diffusion barrier or brightness enhancement film are made to save, assembly cost.Even the setting of omitting diffusion barrier and brightness enhancement film fully to reduce the thickness of side type backlight module further, reaches purpose of thinness.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. one kind has the diffusion or the LGP of brightening effect, and this LGP is in order to being arranged on a side type backlight module inside, and in order to guide the emitted light at least one lamp source, it is characterized in that this LGP comprises:
At least one incidence surface, this incidence surface are positioned at a wherein side of this LGP, and with this adjacent setting in lamp source;
One exiting surface includes a plurality of first micro-structurals on this exiting surface, those first micro-structurals are arranged on this exiting surface;
One bottom surface, this bottom surface lays respectively at the corresponding two sides of this LGP with this exiting surface, and includes a plurality of second micro-structurals on this bottom surface, and those second micro-structurals are arranged on this bottom surface.
2. according to the described LGP of claim 1, it is characterized in that those first micro-structurals are water chestnut mirror post, circular arc post, circular arc particle or taper particle with diffusion or brightening effect.
3. according to the described LGP of claim 2, it is characterized in that those first micro-structurals protrude from the exiting surface of this LGP with diffusion or brightening effect.
4. according to the described LGP of claim 1, it is characterized in that those second micro-structurals are water chestnut mirror post, circular arc post, circular arc particle or taper particle with diffusion or brightening effect.
5. have the LGP of diffusion or brightening effect according to claim 4, it is characterized in that the bottom surface of recessed this LGP of those second micro-structurals.
6. according to the described LGP of claim 1, it is characterized in that those first micro-structurals are close to each other with diffusion or brightening effect.
7. according to the described LGP of claim 1, it is characterized in that those second micro-structurals are close to each other with diffusion or brightening effect.
8. according to the described LGP of claim 1, it is characterized in that those first micro-structurals are regularly arranged with diffusion or brightening effect.
9. according to the described LGP of claim 1, it is characterized in that those second micro-structurals are regularly arranged with diffusion or brightening effect.
10. according to the described LGP of claim 1, it is characterized in that the appearance of this bottom surface and this second micro-structural is coated with a reflecting layer with diffusion or brightening effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671313U CN201803231U (en) | 2010-07-20 | 2010-07-20 | Light guide plate with diffusion or brightness-increasing effects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202671313U CN201803231U (en) | 2010-07-20 | 2010-07-20 | Light guide plate with diffusion or brightness-increasing effects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803231U true CN201803231U (en) | 2011-04-20 |
Family
ID=43872730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202671313U Expired - Fee Related CN201803231U (en) | 2010-07-20 | 2010-07-20 | Light guide plate with diffusion or brightness-increasing effects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803231U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104379990A (en) * | 2012-01-30 | 2015-02-25 | 汽车照明后灯法国有限公司 | Device for making the appearance of a motor vehicle signal light uniform |
| CN104566044A (en) * | 2014-12-22 | 2015-04-29 | 小米科技有限责任公司 | Backlight module structure and electronic equipment |
| CN105093383A (en) * | 2014-05-08 | 2015-11-25 | 光展应材股份有限公司 | Light guide plate structure |
| CN108693597A (en) * | 2018-08-01 | 2018-10-23 | 京东方科技集团股份有限公司 | Light guide structure and its manufacturing method, backlight module, liquid crystal display device |
-
2010
- 2010-07-20 CN CN2010202671313U patent/CN201803231U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104379990A (en) * | 2012-01-30 | 2015-02-25 | 汽车照明后灯法国有限公司 | Device for making the appearance of a motor vehicle signal light uniform |
| CN105093383A (en) * | 2014-05-08 | 2015-11-25 | 光展应材股份有限公司 | Light guide plate structure |
| CN104566044A (en) * | 2014-12-22 | 2015-04-29 | 小米科技有限责任公司 | Backlight module structure and electronic equipment |
| CN108693597A (en) * | 2018-08-01 | 2018-10-23 | 京东方科技集团股份有限公司 | Light guide structure and its manufacturing method, backlight module, liquid crystal display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202419335U (en) | Liquid crystal display and direct light-emitting diode (LED) backlight module | |
| CN102081177A (en) | Optical diffusion film and liquid crystal display (LCD) backlight using optical diffusion film | |
| JP2012504253A (en) | Light guide device | |
| CN202647490U (en) | Backlight module and display device | |
| CN102236206A (en) | Display apparatus | |
| CN105700234B (en) | Backlight module and liquid crystal display | |
| CN102734712A (en) | LED (Light-Emitting Diode) backlight module and microstructure machining method thereof | |
| CN201803231U (en) | Light guide plate with diffusion or brightness-increasing effects | |
| CN102207565B (en) | Multifunctional optical sheet, and backlight module and liquid crystal display device with optical sheet | |
| CN102691936A (en) | Backlight module and liquid crystal display device | |
| CN202494798U (en) | Light guide plate, backlight module and liquid crystal display device | |
| US20130050831A1 (en) | Light guide plate and manufacturing method thereof | |
| CN201218442Y (en) | Backlight module and LCD device containing the same | |
| CN103883930A (en) | Backlight module and display device | |
| CN202469747U (en) | Sidelight-type backlight module and display device | |
| CN201159778Y (en) | Light conducting plate and side light type backlight module with the same | |
| CN201803313U (en) | Diffusion plate and backlight module group adopting the same | |
| US20160252667A1 (en) | Backlight unit and display device | |
| CN102878525A (en) | Prism film, side-light type backlight module and liquid crystal display device | |
| CN101285902B (en) | Diffusing plate group | |
| TWM409450U (en) | Light guide plate with inner laser engraving | |
| CN102162868B (en) | Optical sheet and backlight module with same | |
| CN101482669A (en) | Optical element, backlight module and display equipment | |
| CN206460191U (en) | Light pipe, laser backlight and display device | |
| KR20170064106A (en) | Backlight unit and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130720 |