CN102116894A - Dual-light-outlet-surface light-guide plate and application thereof - Google Patents
Dual-light-outlet-surface light-guide plate and application thereof Download PDFInfo
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- CN102116894A CN102116894A CN 201110065610 CN201110065610A CN102116894A CN 102116894 A CN102116894 A CN 102116894A CN 201110065610 CN201110065610 CN 201110065610 CN 201110065610 A CN201110065610 A CN 201110065610A CN 102116894 A CN102116894 A CN 102116894A
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Abstract
The invention relates to the field of optics, in particular to a light-guide plate and application thereof. A dual-light-outlet-surface light-guide plate comprises a light-guide plate body which is provided with a diffused mesh point or a micro structure. The light-guide plate body comprises a light outlet surface; the diffused mesh point or the micro structure is arranged inside the light-guide plate body; two surfaces of the light-guide plate body are light outlet surfaces; a double-sided display lamp box comprises a picture panel; a backlight module is arranged in the back of the picture panel; and the backlight module comprises a lamp box light source and the light-guide plate, wherein the light-guide plate is the dual-light-outlet-surface light-guide plate. A double-sided display liquid crystal display comprises a liquid crystal display panel; the backlight module is arranged in the back of the liquid crystal display panel; and the backlight module comprises the light source and the light-guide plate, wherein the light-guide plate is the dual-light-outlet-surface light-guide plate. By the technical scheme, two surfaces of the dual-light-outlet-surface light-guide plate disclosed by the invention can guide light by using one group of light source, so that the cost, the volume and the energy consumption are reduced.
Description
Technical field
The present invention relates to optical field, relate in particular to a kind of light guide plate and application thereof.
Background technology
Light guide plate is one of critical component of display devices such as LCD, ultrathin lamp box.The quality of light guide plate has comparatively directly had influence on the display effect of these display devices.Can have influence on brightness that display device shows, degree of uniformity, image contrast of display degree etc. such as light guide plate.Good light guide plate can also effectively be saved the energy when guaranteeing the display device display effect, reduce energy loss.
The existing two-sided advertising lamp box that all has picture, general two width of cloth picture back all can have a light guide plate.Such two light guide plate just need to be equipped with two groups of light sources.Therefore there is the cost height in this advertising lamp box, volume is big, high shortcoming consumes energy.
The existing occasion that is provided with LCD is when needs double-sided display effect, often simply with two back-to-back putting together of LCD.Caused equally that cost height, volume are big, high shortcoming consumes energy.
Summary of the invention
The object of the present invention is to provide a kind of pair of exiting surface light guide plate, to solve the problems of the technologies described above.
The present invention also aims to provide a kind of double-sided display lamp box, to solve the problems of the technologies described above.
The present invention also aims to provide a kind of two-sided display liquid crystal display, to solve the problems of the technologies described above.
Technical matters solved by the invention can realize by the following technical solutions:
Two exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, it is characterized in that, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface.
Because described diffusion site or microstructure are arranged on described light guide plate plate body inside, so can be to two area scattering light of light guide plate plate body.Simultaneously because two faces of described light guide plate plate body are the exiting surface that penetrates for light, so final light can penetrate respectively from double-edged two exiting surfaces of light guide plate plate body, formation has the light guide plate of two exiting surfaces, can provide light source for being positioned at display devices such as double-edged advertising panel, propaganda panel, LCDs.
When technique scheme is used with the double-sided display lamp box, can make and just adopt a light guide plate and one group of light source in the lamp box, thereby reduce cost, reduce volume, cut down the consumption of energy.Provide condition for producing the low display with double faces of cost simple in structure when technique scheme is applied to LCD, can make that two LCDs are common to adopt a light guide plate and one group of light source, thereby reduced cost, reduced volume, cut down the consumption of energy.
Described light guide plate plate body can be the wedge-like of tabular, both sides symmetry, so that the light intensity of two described exiting surface ejaculations is approximate.
Be provided with the described diffusion site or the microstructure of in the light inlet side direction, progressively closely arranging in the described light guide plate plate body.Light intensity is stronger near the light inlet side, and described diffusion site or microstructure are arranged lax relatively; The light inlet side at a distance light intensity a little less than, described diffusion site or microstructure are arranged tight relatively; Helping light so evenly distributes.
Be provided with described diffusion site or the microstructure that progressively increases from light inlet side direction inner volume in the described light guide plate plate body.Light intensity is stronger near the light inlet side, and described diffusion site or microstructure volume are less; The light inlet side at a distance light intensity a little less than, described diffusion site or microstructure volume are bigger; Helping light so evenly distributes.
Be provided with in the described light guide plate plate body and be described diffusion site or the microstructure that concentric circles is arranged, described diffusion site or microstructure are arranged tight gradually by the outside to circle centre position.
It is base material that described light guide plate plate body adopts optical grade acryl (PMMA)/PC.To reduce optical loss.
The double-sided display lamp box comprises the picture panel, and picture panel rear is provided with module backlight, and described module backlight comprises lamphouse light source and light guide plate, it is characterized in that, described light guide plate adopts a pair of exiting surface light guide plate;
Described pair of exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface;
The place ahead of two exiting surfaces of described pair of exiting surface light guide plate is equipped with a picture panel.
Realize providing light source for two picture panels on the double-sided display lamp box by technique scheme by two exiting surface light guide plate.And then reduce cost, reduce volume, cut down the consumption of energy for the double-sided display lamp box.
Described lamphouse light source can adopt led light source, cold cathode fluorescent lamp, fluorescent tube etc.
Described lamphouse light source is arranged on the bottom of described pair of exiting surface light barrier, and described lamphouse light source is provided with cooling system, and the cooling system of described lamphouse light source is arranged on the bottom of two exiting surface light guide plate, so that compact conformation.
The two-sided display liquid crystal display comprises display panels, and the display panels rear is provided with module backlight, and described module backlight comprises liquid crystal backlight and light guide plate, it is characterized in that, described light guide plate adopts a pair of exiting surface light guide plate;
Described pair of exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface;
The place ahead of two exiting surfaces of described pair of exiting surface light guide plate is equipped with a display panels.
Realize providing light source for two display panels on the two-sided display liquid crystal display by technique scheme by two exiting surface light guide plate.And then reduce cost, reduce volume, cut down the consumption of energy for the two-sided display liquid crystal display.
Described liquid crystal backlight is arranged on described pair of exiting surface light guide plate side, and described liquid crystal backlight is provided with cooling system, and described cooling system is arranged on described pair of exiting surface light guide plate side.So that reduce the thickness of whole two-sided display liquid crystal display.
Beneficial effect: owing to adopt technique scheme, of the present invention pair of exiting surface light guide plate be as long as use one group of light source, and the light guide plate two sides can both bright dipping, thereby reduce cost, reduce volume, cut down the consumption of energy; The double-sided display lamp box that uses two exiting surface light guide plate of above-mentioned design to make also has double-sided display function, the advantage that also has reducing cost, reduces volume, cuts down the consumption of energy; The two-sided display liquid crystal display that uses two exiting surface light guide plate of above-mentioned design to make also has double-sided display function.
Description of drawings
Fig. 1 is the part-structure synoptic diagram of light guide plate plate body of the present invention;
Fig. 2 is the part-structure synoptic diagram of double-sided display lamp box of the present invention;
Fig. 3 is the part-structure synoptic diagram of two-sided display liquid crystal display of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention below in conjunction with concrete diagram.
With reference to Fig. 1, two exiting surface light guide plate comprise a light guide plate plate body 1, and it is base material that light guide plate plate body 1 adopts optical grade acryl (PMMA)/PC.Light guide plate plate body 1 central plane is provided with diffusion site or microstructure, in Fig. 1, preferred diffusion site 11, light guide plate plate body 1 comprises the exiting surface 2 that is used to derive light, diffusion site 11 is arranged on light guide plate plate body 1 inside, and two faces of light guide plate plate body 1 are exiting surface 2.Light guide plate plate body 1 can be the wedge-like of tabular, both sides symmetry, preferred tabular, in case two luminous energy approximately equals that exiting surface 2 penetrates, the homogeneity unanimity.
Be provided with in the light guide plate plate body 1 and in the light inlet side direction, progressively spread site 11 or microstructure closely.Light intensity is stronger near the light inlet side, and diffusion site 11 or microstructure are arranged lax relatively; The light inlet side at a distance light intensity a little less than, diffusion site 11 or microstructure are arranged tight relatively; Helping light so evenly distributes.Be provided with the diffusion site 11 or the microstructure that progressively increase from light inlet side direction inner volume in the light guide plate plate body 1.Light intensity is stronger near the light inlet side, and diffusion site 11 or microstructure volume are less; The light inlet side at a distance light intensity a little less than, diffusion site 11 or microstructure volume are bigger; Helping light so evenly distributes.Be provided with in the light guide plate plate body 1 and be diffusion site 11 or the microstructure that concentric circles is arranged, diffusion site 11 or microstructure are arranged tight gradually by the outside to circle centre position.
During concrete enforcement, after can adopting laser engraving, diffusion site 11 in the light guide plate plate body 1 or microstructure form.After diffusion site 11 or microstructure were set in light guide plate plate body 1 inside center position by the focal position with laser instrument, engraving was in light guide plate plate body 1 inside, and diffusion site 11 or microstructure are formed array.Diffusion site 11 or microstructure are sparse more from the near more local linear array of light source, and be intensive more from the local linear array that light source is far away more.
Adopt the light guide plate plate body 1 of laser engraving that following characteristics are arranged:
1, under the equal brightness situation, can the thin product of used thickness, save cost;
2, with under homalographic and the luminosity situation, the luminescence efficiency height, low in energy consumption;
3, light conversion ratio height (more traditional light guide plate plate body 1 high more than 30%), light is even, the life-span is long (indoor can normally the use more than 20 years), safety and environmental protection, durable reliably all applicable indoor and outdoor;
4, to be made into abnormal shape, as circle, ellipse, circular arc, triangle etc.;
5, can use any pointolite, line source to do the area source conversion, light source comprises LED, CCFL (cold cathode fluorescent lamp), fluorescent tube or the like.
By parameters such as the focal position of laser instrument, burst length, number of pulses, pulse strength are controlled, can accurately control the parameter such as the degree of depth, width, length of the engraving vestige that laser forms on light guide plate plate body 1.Therefore the spacing of adjacent two diffusion sites 11, the left and right sides or microstructure is made as and is less than or equal to 5mm in the light guide plate plate body 2, and degree of depth Stimulated Light control of energy is 0.001～1mm, and the diameter of diffusion site 11 is 0.005～2mm.When light is mapped to diffusion during site 11, can be toward all angles diffusion, utilize various densitys, diffusion site 11 not of uniform size, can make light guide plate plate body 1 uniformly light-emitting.
Be embedded with at least 4 LED wafers in the light guide plate plate body 1, at least 4 described LED wafers are arranged in luminescent source array.Should try one's best during arrangement evenly.Draw power supply lead wire after the parallel connection of at least 4 described LED wafers, so that insert power supply.At least 4 described LED wafers connect by copper wire, form relation in parallel.
At least 4 described LED wafers are arranged in luminescent source array, carry out implanting in the light guide plate plate body 1 in the heat curing forming process at light guide plate plate body 1.In the production light guide plate plate body 1 is divided into two aspects, i.e. the upper and lower.Below lay the polymer matrix composites that one deck contains thermoset resin, low shrinkage additive, so that form light guide plate plate body 1 lower floor, above polymer matrix composites, arrange luminescent source array then, and then lay the polymer matrix composites that one deck contains thermoset resin, low shrinkage additive, carry out heat curing then.
As solidify the back as described in the diffusion site 11 of arranging around the LED wafer so that diffusion light avoids forming bright spot.
With reference to Fig. 2, the double-sided display lamp box comprises picture panel 3, and picture panel 3 rears are provided with module backlight, and module backlight comprises lamphouse light source 41 and light guide plate 42, and light guide plate 42 adopts two exiting surface light guide plate.Two exiting surface light guide plate, comprise light guide plate plate body 1, light guide plate plate body 1 is provided with diffusion site 11 or microstructure, and light guide plate plate body 1 comprises the exiting surface 2 that is used to derive light, diffusion site 11 or microstructure are arranged on light guide plate plate body 1 inside, and two faces of light guide plate plate body 1 are exiting surface 2; The place ahead of two exiting surfaces 2 of two exiting surface light guide plate is equipped with a picture panel 3.Realize providing light source for two picture panels 3 on the double-sided display lamp box by technique scheme by two exiting surface light guide plate.Lamphouse light source 41 can adopt led light source, cold cathode fluorescent lamp, fluorescent tube etc.Lamphouse light source 41 is arranged on the bottom of two exiting surface light guide plate, and lamphouse light source 41 is provided with cooling system, and the cooling system of lamphouse light source 41 is arranged on the bottom of two exiting surface light guide plate.
With reference to Fig. 3, the two-sided display liquid crystal display comprises display panels 5, and display panels 5 rears are provided with module backlight, and module backlight comprises liquid crystal backlight 6 and light guide plate 42, and light guide plate 42 adopts two exiting surface light guide plate; Two exiting surface light guide plate, comprise light guide plate plate body 1, light guide plate plate body 1 is provided with diffusion site 11 or microstructure, and light guide plate plate body 1 comprises the exiting surface 2 that is used to derive light, diffusion site 11 or microstructure are arranged on light guide plate plate body 1 inside, and two faces of light guide plate plate body 1 are exiting surface 2; The place ahead of two exiting surfaces 2 of two exiting surface light guide plate is equipped with a display panels 5.Realize providing light source for two display panels 5 on the two-sided display liquid crystal display by technique scheme by two exiting surface light guide plate.Liquid crystal backlight 6 is arranged on two exiting surface light guide plate sides, and liquid crystal backlight 6 is provided with cooling system, and cooling system is arranged on two exiting surface light guide plate sides.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. two exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, it is characterized in that, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface.
2. according to claim 1 pair of exiting surface light guide plate is characterized in that described light guide plate plate body is a tabular.
3. according to claim 1 pair of exiting surface light guide plate is characterized in that, is provided with the described diffusion site or the microstructure of progressively closely arranging in the light inlet side direction in the described light guide plate plate body.
4. according to claim 3 pair of exiting surface light guide plate is characterized in that, is provided with described diffusion site or the microstructure that progressively increases from light inlet side direction inner volume in the described light guide plate plate body.
5. according to claim 1,2,3 or 4 described pairs of exiting surface light guide plate, it is characterized in that, be provided with in the described light guide plate plate body and be described diffusion site or the microstructure that concentric circles is arranged, described diffusion site or microstructure are arranged tight gradually by the outside to circle centre position.
6. according to claim 5 pair of exiting surface light guide plate is characterized in that, is embedded with at least 4 LED wafers in the described light guide plate plate body, and at least 4 described LED wafers are arranged in luminescent source array; Draw power supply lead wire after the parallel connection of at least 4 described LED wafers;
At least 4 described LED wafers connect by copper wire, form relation in parallel; Around described LED wafer, arrange and spread the site.
7. the double-sided display lamp box comprises the picture panel, and described picture panel rear is provided with module backlight, and described module backlight comprises lamphouse light source and light guide plate, it is characterized in that, described light guide plate adopts a pair of exiting surface light guide plate;
Described pair of exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface;
The place ahead of two exiting surfaces of described pair of exiting surface light guide plate is equipped with a picture panel.
8. double-sided display lamp box according to claim 7 is characterized in that, described lamphouse light source adopts led light source;
Described lamphouse light source is arranged on the bottom of described pair of exiting surface light barrier, and described lamphouse light source is provided with cooling system, and the cooling system of described lamphouse light source is arranged on the bottom of two exiting surface light guide plate.
9. the two-sided display liquid crystal display comprises display panels, and described display panels rear is provided with module backlight, and described module backlight comprises liquid crystal backlight and light guide plate, it is characterized in that, described light guide plate adopts a pair of exiting surface light guide plate;
Described pair of exiting surface light guide plate, comprise a light guide plate plate body, described light guide plate plate body is provided with diffusion site or microstructure, described light guide plate plate body comprises the exiting surface that is used to derive light, described diffusion site or microstructure are arranged on described light guide plate plate body inside, and two faces of described light guide plate plate body are exiting surface;
The place ahead of two exiting surfaces of described pair of exiting surface light guide plate is equipped with a display panels.
10. two-sided display liquid crystal display according to claim 9 is characterized in that, described liquid crystal backlight is arranged on described pair of exiting surface light guide plate side;
Described liquid crystal backlight is provided with cooling system, and described cooling system is arranged on described pair of exiting surface light guide plate side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110065610 CN102116894B (en) | 2011-03-18 | 2011-03-18 | Dual-light-outlet-surface light-guide plate and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110065610 CN102116894B (en) | 2011-03-18 | 2011-03-18 | Dual-light-outlet-surface light-guide plate and application thereof |
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| Publication Number | Publication Date |
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| CN102116894A true CN102116894A (en) | 2011-07-06 |
| CN102116894B CN102116894B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110065610 Expired - Fee Related CN102116894B (en) | 2011-03-18 | 2011-03-18 | Dual-light-outlet-surface light-guide plate and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013026214A1 (en) * | 2011-08-24 | 2013-02-28 | 深圳市华星光电技术有限公司 | Light guide plate and manufacturing method thereof |
| CN104503141A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Liquid crystal display backlight module and liquid crystal display |
| CN108230905A (en) * | 2018-01-02 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of display screen and display device |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN113777693A (en) * | 2021-09-28 | 2021-12-10 | 联想(北京)有限公司 | Backlight module, manufacturing method thereof and electronic equipment |
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| CN2502345Y (en) * | 2001-11-08 | 2002-07-24 | 胡小萍 | Advertising lamp house |
| CN1499255A (en) * | 2002-10-24 | 2004-05-26 | 精工爱普生株式会社 | Displaying device and electronic appliance |
| CN2879233Y (en) * | 2006-01-04 | 2007-03-14 | 合世生医科技股份有限公司 | Device for improving backlight display color mixing of liquid crystal display panel |
| CN101295042A (en) * | 2007-04-27 | 2008-10-29 | 鸿富锦精密工业（深圳）有限公司 | Back light module and optical plate |
| CN101470230A (en) * | 2007-12-29 | 2009-07-01 | 上海边光实业有限公司 | Light conducting plate carved by laser impulse and method for producing the same |
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2011
- 2011-03-18 CN CN 201110065610 patent/CN102116894B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2502345Y (en) * | 2001-11-08 | 2002-07-24 | 胡小萍 | Advertising lamp house |
| CN1499255A (en) * | 2002-10-24 | 2004-05-26 | 精工爱普生株式会社 | Displaying device and electronic appliance |
| CN2879233Y (en) * | 2006-01-04 | 2007-03-14 | 合世生医科技股份有限公司 | Device for improving backlight display color mixing of liquid crystal display panel |
| CN101295042A (en) * | 2007-04-27 | 2008-10-29 | 鸿富锦精密工业（深圳）有限公司 | Back light module and optical plate |
| CN101470230A (en) * | 2007-12-29 | 2009-07-01 | 上海边光实业有限公司 | Light conducting plate carved by laser impulse and method for producing the same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013026214A1 (en) * | 2011-08-24 | 2013-02-28 | 深圳市华星光电技术有限公司 | Light guide plate and manufacturing method thereof |
| CN104503141A (en) * | 2014-12-31 | 2015-04-08 | 深圳市华星光电技术有限公司 | Liquid crystal display backlight module and liquid crystal display |
| CN108230905A (en) * | 2018-01-02 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of display screen and display device |
| CN110109223A (en) * | 2019-05-14 | 2019-08-09 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN110109223B (en) * | 2019-05-14 | 2024-04-26 | 深圳技术大学 | Laser wireless energy transmission system based on light guide plate |
| CN113777693A (en) * | 2021-09-28 | 2021-12-10 | 联想(北京)有限公司 | Backlight module, manufacturing method thereof and electronic equipment |
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| CN102116894B (en) | 2013-03-27 |
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