CN202110309U - Light guide plate, backlight and display device - Google Patents
Light guide plate, backlight and display device Download PDFInfo
- Publication number
- CN202110309U CN202110309U CN201120232684XU CN201120232684U CN202110309U CN 202110309 U CN202110309 U CN 202110309U CN 201120232684X U CN201120232684X U CN 201120232684XU CN 201120232684 U CN201120232684 U CN 201120232684U CN 202110309 U CN202110309 U CN 202110309U
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- lgp
- backlight
- light
- light source
- sunk area
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Abstract
The embodiment of the utility model relates to the field of liquid crystal display technology, especially a light guide plate, a backlight and a display device. The light guide plate comprises an upward recessed area on the lower surface, and the inner wall of the recessed area is provided with atomization particles. The outer side of the side wall between the upper surface and the lower surface, and the non-recessed area of the lower surface are provided with reflective films. According to the light guide plate, the backlight and the display device provided in the embodiment of the utility model, light rays generated by a light source forms an area light effect by means of the atomization particles and the light guide plate, having low consumption of the light source and uniform generated light rays.
Description
Technical field
The utility model relates to technical field of liquid crystal display, particularly a kind of LGP, backlight and display device.
Background technology
In the prior art, the light that Backlight For Liquid Crystal Display Panels provides, general direct by area source; Line source CCFL (Cold Cathode Fluorescent Lamp; The cold cathode fluorescent lamp pipe), pointolite LED (Light Emitting Diode, light emitting diode) is through directly generations such as bloomings.When the light of backlight is directly provided by area source, the image quality of LCDs, all once better, but the light source power consumption is high.When the light of backlight was directly provided by line source or pointolite, though light source is low in energy consumption, collocation and optical design preferably just can convert the area source of backlight to, and the image quality of LCDs was with all once relatively poor.
The utility model content
A kind of LGP, backlight and display device that the utility model embodiment provides, the light that light source is produced reaches the effect of area source, and then takes into account the effect that light source is low in energy consumption and produce uniform light.
The utility model embodiment provides a kind of LGP, comprising:
Lower surface has sunk area upwards, and said sunk area inwall has atomizing particle;
Non-sunk area has reflectance coating in outside between said upper surface and the lower surface, the said lower surface.
Preferable, said sunk area is a hemisphere.
Preferable, said lower surface is circle or quadrilateral, and upper surface is a quadrilateral, and sidewall is a wedge shape.
Preferable, the vertical cross-section of said LGP is for trapezoidal.
Preferable, said atomizing particle is the transparent grain with high reflectance.
Preferable, said sidewall indentation.
The utility model embodiment also provides a kind of backlight, comprising: light source, blooming also comprise above-mentioned LGP;
Said light source is arranged in the sunk area of said LGP;
Said blooming is attached to the upper surface of said LGP.
Preferable, also comprise: the backboard of placing said LGP.
Preferable, also comprise: said LGP is fixed on the glue frame on the said backboard.
Preferable, said light source is pointolite or line source.
The utility model embodiment also provides a kind of display device, comprising: above-mentioned backlight.
The LGP that the utility model embodiment provides, backlight and display device; Through in the sunk area of LGP lower surface, smearing atomizing particle; It is inner to make that this atomizing particle gets into LGP under light source irradiation; And then utilizing this atomizing particle that the light that the sunk area inner light source sends is reflexed to exiting surface, the light that light source is produced reaches the effect of area source, and then takes into account the effect that light source is low in energy consumption and produce uniform light.
Description of drawings
Fig. 1 is the structural representation of LGP among the utility model embodiment;
Fig. 2 is a side wall construction synoptic diagram among the utility model embodiment;
Fig. 3 is the structural representation of LGP among another embodiment of the utility model;
Fig. 4 is the structural representation of LGP among another embodiment of the utility model;
Fig. 5 is the structural representation of LGP among another embodiment of the utility model;
Fig. 6 is the structural representation of backlight among the utility model embodiment;
Fig. 7 a-Fig. 7 b is the structural representation of glue frame among the utility model embodiment.
Embodiment
Below in conjunction with Figure of description the utility model embodiment is described in further detail.
The utility model embodiment provides a kind of LGP, and is as shown in Figure 1, and it specifically comprises:
Concrete, the lower surface 1 of this LGP has one or more sunk areas 11, and this sunk area 11 is used to place light source.The upper surface 2 of this LGP is an exiting surface, and the light that the light source in the sunk area 11 sends is launched through this upper surface 2.Preferable, this sunk area 11 is a hemisphere, also can be any regular or irregular type shapes such as right cylinder, cone, only need guarantee can place light source in this sunk area 11.The number of light sources of its placement can be controlled the light intensity that this LGP sends through the adjustment number of light sources for a plurality of.And; These sunk area 11 inwalls have been smeared atomizing particle 12, and this atomizing particle 12 is for having the transparent grain of high reflectance, through after the light source irradiation; It gets into the LGP from all angles, and then reflexes to the upper surface 2 of LGP from the light that all angles are sent light source.
It between upper surface 2 and the lower surface 1 sidewall 3 of LGP.This sidewall 3 can be shiny surface, like smooth flat, smooth cambered surface, also can concave-convex surface, and like zigzag.As shown in Figure 2, these sidewall 3 indentations, this sawtooth 13 can reflect the light that light source sends and reflect, and improves the utilization factor of light.
In addition, all have reflectance coating 4 at the non-sunk area of sidewall 3 outsides and lower surface 1, the light that uses this radiation film 4 will shine lower surface 1 and sidewall 3 inside surfaces reflexes to upper surface 2, has prevented the leakage of light thus, has improved the utilization factor of light.
Wherein, above-mentioned LGP can be for any type shape, in order to cooperate actual needs; The upper surface 2 of this LGP and lower surface 1 place plane parallel; And left and right sides rotational symmetry meets the demand of display device to guarantee light that this LGP sends, and comparatively lightening.Wherein, the upper surface 2 of this LGP can have any shape, for example polygon, circle, ellipse etc.Preferable, this upper surface 2 is a rectangle, so that cooperate the shape of display screen.The lower surface 1 of this LGP can have any shape, for example polygon, circle, ellipse etc., and it is good to guarantee that LGP firmly is placed as.Preferable, lower surface 1 is circle or quadrilateral.LGP sidewall 3 can have any shape, and generally speaking, should cooperate the shape of upper and lower surfaces.As shown in Figure 3; Structural representation for this LGP; The upper surface 2 of this LGP is that rectangle, lower surface 1 are that circle, sidewall 3 are wedge shape, has a hemisphere sunk area 11 at this lower surface 1 place, on the inwall of this sunk area 11, has atomizing particle 12.As shown in Figure 4, be another structural representation of this LGP, the upper surface 2 of this LGP is a rectangle, and lower surface 1 is a rectangle, and sidewall 3 is a wedge shape, has a cone sunk area 11 at this lower surface place.
Preferable; In the length of the upper surface 2 of same this LGP of direction length greater than lower surface 1; For example this LGP cross section in vertical direction is for trapezoidal; The light reflection that the reflectance coating 4 that helps sidewall 3 outsides like this sends light source is shortened the propagation distance of light in LGP to upper surface 2.In same direction; The length of the upper surface 2 of this LGP also can be equal to or less than the length of lower surface 1; As shown in Figure 5; This LGP cross section in vertical direction is trapezoidal, and lower surface 1 has the sunk area that makes progress 11 of pyrometric cone shape, and its inwall has the atomizing particle 12 of high reflectance.
Pass through foregoing description; Can find out that the LGP that the utility model embodiment provides is through smearing atomizing particle in the sunk area of LGP lower surface; It is inner to make that this atomizing particle gets into LGP under light source irradiation; And then utilizing this atomizing particle that the light that the sunk area inner light source sends is reflexed to exiting surface, the light that non-area source is produced reaches the effect of area source, and then takes into account the effect that light source is low in energy consumption and produce uniform light.
The utility model also provides a kind of backlight, and is as shown in Figure 6, and this backlight comprises: light source 61, blooming 62 also comprise above-mentioned LGP 63;
This light source 61 is arranged in the sunk area 11 of LGP 63;
This blooming 62 is attached to the upper surface 2 of this LGP 63.
Preferable, this backlight also comprises: the backboard 64 of placing this LGP.Wherein, this light source 61 can be pointolite or line source.The number of light source can be set according to actual needs.
Preferable, this backlight also comprises: LGP is fixed on the glue frame 65 on the backboard.The concrete structure of this glue frame 65 can be provided with according to actual needs, and Fig. 7 a-Fig. 7 b is the structural representation of this glue frame, and shown in Fig. 7 a, sidewall 3 structures of the respective outer side edges LGP in the empty frame are fixed on LGP on the glue frame.Shown in Fig. 7 b, this glue frame 65 can link to each other with draw-in groove on the backboard 64 through trip in the empty frame, thereby LGP 63, light source 61, glue frame 65 are fixed on the backboard 64, is adding optical film material, forms a kind of backlight of concentrated light source.The structure of this glue frame 65 can be multiple structure, and other structures repeat no more at this.
Through specific embodiment the backlight that the utility model embodiment provides is elaborated below; As shown in Figure 6; LGP 63 is fixed on the backboard 64 through glue frame 65; This LGP 63 cross section in vertical direction is approximately trapezoidal, has a sunk area that makes progress 11 at the lower surface 1 of this LGP 63, and the shape of this sunk area 11 is hemisphere.In this sunk area 11, can place light source 61, and on the inwall of this sunk area 11, scribble atomizing particle 12, this atomizing particle 12 has higher reflectivity, after light source 61 irradiations, can diffuse to LGP 63 inside.After atomizing particle 12 got into LGPs 63, the light that light source is sent reflexed to the upper surface 2 of this LGP 63 from all angles., the light that non-area source is produced reaches the effect of area source, and then takes into account the effect that light source is low in energy consumption and produce uniform light.
Based on same conception, the utility model also provides a kind of display device, and this display device comprises: above-mentioned backlight.
Pass through foregoing description; Can find out that the LGP that the utility model embodiment provides, backlight and display device are through smearing atomizing particle in the sunk area of LGP lower surface; It is inner to make that this atomizing particle gets into LGP under light source irradiation; And then utilizing this atomizing particle that the light that the sunk area inner light source sends is reflexed to exiting surface, the light that non-area source is produced reaches the effect of area source, and then takes into account the effect that light source is low in energy consumption and produce uniform light.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (11)
1. a LGP is characterized in that, comprising:
Lower surface has sunk area upwards, and said sunk area inwall has atomizing particle;
Outside between said upper surface and the lower surface, the non-sunk area of said lower surface have reflectance coating.
2. LGP as claimed in claim 1 is characterized in that, said sunk area is a hemisphere.
3. LGP as claimed in claim 1 is characterized in that, said lower surface is circle or quadrilateral, and upper surface is a quadrilateral, and sidewall is a wedge shape.
4. LGP as claimed in claim 3 is characterized in that the vertical cross-section of said LGP is for trapezoidal.
5. LGP as claimed in claim 1 is characterized in that, said atomizing particle is the transparent grain with high reflectance.
6. LGP as claimed in claim 1 is characterized in that, said sidewall indentation.
7. backlight comprises: light source, blooming, it is characterized in that, and also comprise like arbitrary described LGP among the claim 1-6;
Said light source is arranged in the sunk area of said LGP;
Said blooming is attached to the upper surface of said LGP.
8. backlight as claimed in claim 7 is characterized in that, also comprises: the backboard of placing said LGP.
9. backlight as claimed in claim 8 is characterized in that, also comprises: said LGP is fixed on the glue frame on the said backboard.
10. backlight as claimed in claim 7 is characterized in that, said light source is pointolite or line source.
11. a display device is characterized in that, comprises like arbitrary described backlight among the claim 7-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232684XU CN202110309U (en) | 2011-07-04 | 2011-07-04 | Light guide plate, backlight and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232684XU CN202110309U (en) | 2011-07-04 | 2011-07-04 | Light guide plate, backlight and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110309U true CN202110309U (en) | 2012-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120232684XU Expired - Lifetime CN202110309U (en) | 2011-07-04 | 2011-07-04 | Light guide plate, backlight and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110309U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773315A (en) * | 2017-01-13 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104391350B (en) * | 2014-11-26 | 2018-01-16 | 深圳市华星光电技术有限公司 | A kind of light guide plate and backlight module |
| CN109828410A (en) * | 2018-08-03 | 2019-05-31 | 海迪科（南通）光电科技有限公司 | A kind of display of novel LED backlight mould group |
| CN110609418A (en) * | 2019-09-24 | 2019-12-24 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
-
2011
- 2011-07-04 CN CN201120232684XU patent/CN202110309U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391350B (en) * | 2014-11-26 | 2018-01-16 | 深圳市华星光电技术有限公司 | A kind of light guide plate and backlight module |
| CN106773315A (en) * | 2017-01-13 | 2017-05-31 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN109828410A (en) * | 2018-08-03 | 2019-05-31 | 海迪科（南通）光电科技有限公司 | A kind of display of novel LED backlight mould group |
| CN110609418A (en) * | 2019-09-24 | 2019-12-24 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JINGDONGFANG SCIENCE AND TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150707 Owner name: BEIJING BOE PHOTOELECTRICITY SCIENCE + TECHNOLOGY Effective date: 20150707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150707 Address after: 100015 Jiuxianqiao Road, Beijing, No. 10, No. Patentee after: BOE Technology Group Co., Ltd. Patentee after: Beijing BOE Photoelectricity Science & Technology Co., Ltd. Address before: 100176 Beijing city in Western Daxing District economic and Technological Development Zone, Road No. 8 Patentee before: Beijing BOE Photoelectricity Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |