CN201527525U - Backlight source structure of liquid crystal module - Google Patents
Backlight source structure of liquid crystal module Download PDFInfo
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- CN201527525U CN201527525U CN2009201952726U CN200920195272U CN201527525U CN 201527525 U CN201527525 U CN 201527525U CN 2009201952726 U CN2009201952726 U CN 2009201952726U CN 200920195272 U CN200920195272 U CN 200920195272U CN 201527525 U CN201527525 U CN 201527525U
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Abstract
The utility model relates to the field of liquid crystal, and particularly to the filed of liquid crystal backlight source. The utility model provides a backlight source structure of liquid crystal module, which at least comprises the following components: a chamber which has a chamber structure that is closed at the peripheries and opened at the upper part and has coarse texture surfaces at the bottom and the peripheral side surfaces of the chamber; a light source which is provided at one groove or opening at one side surface selected from four peripheral side surfaces of the chamber; and one piece of liquid crystal glass which is provided above the chamber and covers the chamber for forming a space with the chamber. According to the technical solution of the utility model, an uniformly light mixing space which is formed by the opaque chamber with distributed coarse texture surfaces is used for performing lighting to the piece of liquid crystal glass. Therefore, the effect of light source heating to the piece of liquid crystal glass is excellently settled. Meanwhile, the uniform light mixing of the backlight source can be realized through one chamber structure. Compared with a realization solution for combining a light guiding plate, a diffusion film and a reflection film, the backlight source structure of liquid crystal module has the advantages of material saving, easy installation and lower cost.
Description
Technical field
The utility model relates to field of liquid crystals, relates in particular to the LCD backlight source domain.
Background technology
Liquid crystal display (LCD) is because its special advantages, as advantages such as flicker free, undistorted, power saving, low radiation, is widely used in the various electronic products, and be a kind of flat-panel monitor of superior performance.But liquid crystal itself is not luminous, therefore, needs auxiliary backlight illumination.The implementation of the backlight of the liquid crystal display module of prior art generally is to adopt the array mode of light guide plate+diffusion barrier+reflectance coating to realize.Consult shown in Figure 1ly, the general translucent materials that adopt of light guide plate 101 are made, and the fluorescent tube reflex housing 104 that reflectance coating 102, one sides are provided with illuminating lamp tube 105 and optically focused is all sticked in its side and bottom surface, forms backlight part 10 together.And consult shown in Figure 2ly, and again this backlight part 10 is embedded in an outer framework 11 belows, liquid-crystalline glasses 12 is set then above it again and draws lead 13, constitute the liquid crystal display module.Consult shown in Figure 3, can know, the light path principle of backlight is to utilize the light guide plate 101 of translucent material to carry out leaded light, the light reflected back light guide plate 101 that the reflectance coating 102 of its below and side will leak, luminous by light guide plate 101 realization leaded lights and face, and make more even light emission by diffusion barrier 103, and then liquid-crystalline glasses 12 carrying out back lighting, one deck diffusion barrier 103 is also posted in liquid-crystalline glasses 12 tops.
Prior art adopts the weak point of this scheme to be:
1. liquid-crystalline glasses is close to light guide plate, so the LED heating meeting of leaded light edges of boards impacts liquid-crystalline glasses.
2. the backlight part of such liquid crystal display module needs light guide plate+diffusion barrier+reflectance coating at least, and material requested is many, the assembling relative complex, and cost is also higher.
3. utilize light guide plate to carry out leaded light and light intensity is mixed, require the design of light guide plate and the placement location of illuminating lamp tube must satisfy suitable condition, design difficulty is difficult for.
The utility model content
Therefore, at above-mentioned deficiency, the utility model proposes a kind of more excellent backlight design scheme and overcome these deficiencies.Thereby realize a kind ofly, structure is simple more, the backlight scheme of the better LCD of thermal diffusivity.
The technical solution of the utility model is:
A kind of back light source structure of liquid crystal module comprises at least:
One cavity, its be around sealing top open cavity body structure, the bottom surface of described cavity and around the side rough grain face that all distributes;
One lighting source, be arranged at described cavity around a side one the fluting or the hole on;
One liquid-crystalline glasses is arranged at the top of described cavity, covers cavity, forms a space with cavity.
Further, described lighting source can be for a plurality of, be arranged at described cavity around on a plurality of flutings or hole of side.
Further, described lighting source is light emitting diode (LED), cold cathode fluorescent lamp (CCFL), electroluminescence sheet (EL).
Further, described rough grain face is that irregular particle point distributes, and perhaps irregular lines distribute, and perhaps the irregular block face distributes, perhaps both combinations arbitrarily, perhaps three's combination arbitrarily.
The technical solution of the utility model is to utilize the even mixed light space of the opaque cavity formation of distribution rough grain face that liquid-crystalline glasses is carried out back lighting.Therefore, by the isolation in this space, solved the influence of lighting source heating well to liquid-crystalline glasses.Simultaneously, the utility model only need adopt a cavity body structure can realize the even mixed light of backlight, compares the implementation of light guide plate+diffusion barrier+reflectance coating, economical with materials, and assembling is easy, and cost is also cheaper.
Description of drawings
Fig. 1 is the backlight part synoptic diagram of prior art scheme;
Fig. 2 is the liquid crystal display module synoptic diagram of prior art scheme;
Fig. 3 is the backlight light path synoptic diagram of prior art scheme;
Fig. 4 is a backlight part synoptic diagram of the present utility model;
Fig. 5 is a liquid crystal display module synoptic diagram of the present utility model;
Fig. 6 is a backlight light path synoptic diagram of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
The back light source structure of liquid crystal module of the present utility model is: distribution rough grain face in the open cavity space in sealing top around utilizing, the light of lighting source is carried out evenly diffusion after the scattering, and the liquid-crystalline glasses sheet that is used to be opposite to the cavity top provides backlight.
Consulting Fig. 4 and shown in Figure 5, is the embodiment of the back light source structure of a liquid crystal module of the present utility model, comprises at least:
One cavity 20, its be around the open cavity body structure in sealing top, the bottom surface 201 of described cavity 20 and around the side 202 rough grain face that all distributes;
One lighting source 203, be arranged at described cavity 20 around a side one the fluting or the hole on;
One liquid-crystalline glasses 21 is arranged at the top of described cavity 20, covers cavity 20, forms a space with cavity 20.
Described lighting source 203 can be for a plurality of, be arranged at described cavity 20 around on a plurality of flutings or hole of side.Generally can expand as required.Described lighting source 203 is light emitting diode (LED), cold cathode fluorescent lamp (CCFL), electroluminescence sheet (EL).Preferably, described lighting source 203 adopts light emitting diode (LED).Liquid-crystalline glasses 21 carries out display driver by the lead 22 of drawing.
Described rough grain face is that irregular particle point distributes, and perhaps irregular lines distribute, and perhaps the irregular block face distributes, perhaps both combinations arbitrarily, perhaps three's combination arbitrarily.Preferably, the mould of cavity 20 is carried out etching, directly form the rough grain face, one-body molded, cost is cheaper.Consult shown in Figure 6ly, the light that lighting source 203 sends forms diffuse reflection on erosion line face, therefore can increase countless light, just increases the density of light so in cavity space, thus make light in the inner chamber body space infinite leveling off to evenly.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (4)
1. the back light source structure of a liquid crystal module is characterized in that, comprises at least:
One cavity (20), its be around the open cavity body structure in sealing top, the bottom surface (201) of described cavity (20) and around side (202) the rough grain face that all distributes;
One lighting source (203), be arranged at described cavity (20) around a side one the fluting or the hole on;
One liquid-crystalline glasses (21) is arranged at the top of described cavity (20), covers cavity (20), forms a space with cavity (20).
2. the back light source structure of liquid crystal module according to claim 1 is characterized in that: described lighting source (203) can be for a plurality of, be arranged at described cavity (20) around on a plurality of flutings or hole of side.
3. the back light source structure of liquid crystal module according to claim 1 and 2, it is characterized in that: described lighting source (203) is light emitting diode (LED), cold cathode fluorescent lamp (CCFL), electroluminescence sheet (EL).
4. the back light source structure of liquid crystal module according to claim 1, it is characterized in that: described rough grain face is that irregular particle point distributes, and perhaps irregular lines distribute, and perhaps the irregular block face distributes, perhaps both combinations arbitrarily, perhaps three's combination arbitrarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201952726U CN201527525U (en) | 2009-09-18 | 2009-09-18 | Backlight source structure of liquid crystal module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201952726U CN201527525U (en) | 2009-09-18 | 2009-09-18 | Backlight source structure of liquid crystal module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527525U true CN201527525U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201952726U Expired - Fee Related CN201527525U (en) | 2009-09-18 | 2009-09-18 | Backlight source structure of liquid crystal module |
Country Status (1)
| Country | Link |
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| CN (1) | CN201527525U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419815A (en) * | 2010-09-28 | 2012-04-18 | 株式会社日立显示器 | Photosensor |
| CN102829406A (en) * | 2011-06-14 | 2012-12-19 | 海洋王照明科技股份有限公司 | Lamp and light guide plate thereof |
| CN102829410A (en) * | 2011-06-14 | 2012-12-19 | 海洋王照明科技股份有限公司 | Suspended ceiling lamp containing light guide plate |
| CN103900030A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Optical coupling device and backlight module |
-
2009
- 2009-09-18 CN CN2009201952726U patent/CN201527525U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419815A (en) * | 2010-09-28 | 2012-04-18 | 株式会社日立显示器 | Photosensor |
| CN102829406A (en) * | 2011-06-14 | 2012-12-19 | 海洋王照明科技股份有限公司 | Lamp and light guide plate thereof |
| CN102829410A (en) * | 2011-06-14 | 2012-12-19 | 海洋王照明科技股份有限公司 | Suspended ceiling lamp containing light guide plate |
| CN103900030A (en) * | 2012-12-28 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Optical coupling device and backlight module |
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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: 20100714 Termination date: 20120918 |