CN2516997Y - Back light source of net-shape high-brightness angle reflection light plate - Google Patents
Back light source of net-shape high-brightness angle reflection light plate Download PDFInfo
- Publication number
- CN2516997Y CN2516997Y CN 02215190 CN02215190U CN2516997Y CN 2516997 Y CN2516997 Y CN 2516997Y CN 02215190 CN02215190 CN 02215190 CN 02215190 U CN02215190 U CN 02215190U CN 2516997 Y CN2516997 Y CN 2516997Y
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- China
- Prior art keywords
- guide plate
- light guide
- designed
- light source
- shape
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Abstract
The utility model relates to a reticular backlight source with high brightness, which reflects the light guide plate from various angles and mainly comprises an edge light source and a light guide plate. The utility model is characterized in that: a diffusion shell is arranged on the light guide plate, and a brightening membrane is arranged under the light guide plate; the two sides of the light guide plate near the edge light source are designed into a salient shape that can increase the lighting area of the cross section; the light guide plate surface is designed into reticular inverted V-shaped lines; the vertex angle is between eighty-five degrees to one hundred and twenty degrees. The salient shape is like the right side of the capital letter X or a snowflake. As the distance to the edge light source becomes nearer, the reticular inverted V-shaped lines on the light guide plate are designed deeper; for the light guide plate with small specification, the reticular inverted V-shaped lines can be designed with the same depth. The V-shaped lines are designed into laid wire, diagonal mesh, right arc mesh, inclined arc mesh, or other mesh structures. The utility model has the advantages that: the brightness and uniformity are both improved, and the utilization ratio of beams from the edge light source is greatly improved.
Description
Technical field
The utility model relates to a kind of light-emitting display device, mainly is a kind of backlight of netted high brightness angle reflection light guide plate.
Background technology
Existing backlight main product is that the silk-screen bright spot is made light guide plate and the combination of marginal ray source, and such backlight is not high to the utilization factor of light; Another kind is made into the light guide plate and the combination of marginal ray source of tongue and groove, though the utilization factor of such backlight light is improved, uniformity coefficient is not good.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of backlight of netted high brightness angle reflection light guide plate.
The technical scheme that its technical matters that solves the utility model adopts.The backlight of this netted high brightness angle reflection light guide plate, mainly comprise marginal ray source and light guide plate, be provided with diffusion barrier above the light guide plate, be provided with brightness enhancement film below, light guide plate is designed to increase the salient angle shape of xsect light-receiving area near the both sides in marginal ray source, be designed to netted ∧ shape line on the light guide plate, the scope of its drift angle is between 85-120 ℃.
The technical scheme that its technical matters that solves the utility model adopts can also be further perfect.Described salient angle be shaped as "＜" or
Shape.Along with from the marginal ray source from the close-by examples to those far off, the netted ∧ shape line on the light guide plate is designed to gradually change from shallow to deep; In the light guide plate of small dimension, its ∧ shape line can be designed to depth unanimity.Described ∧ shape line is designed to straight line net or diagonal screen or positive arc line net or oblique arc line net or other network structures.
The effect that the utility model is useful is: owing to adopt the salient angle shape that increases the xsect light-receiving area, and the ∧ shape line and the net distribution state of reasonable angle, thereby brightness and uniformity coefficient are all better improved, the utilization factor of marginal ray source light is improved greatly.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the utility model embodiment 1;
Fig. 2 is the structural representation of looking up of the utility model embodiment 1;
Fig. 3 is the main TV structure synoptic diagram of the utility model embodiment 2;
Fig. 4 is the structural representation of looking up of the utility model embodiment 2;
Fig. 5 is the structural representation of looking up of the utility model embodiment 3;
Fig. 6 is the structural representation of looking up of the utility model embodiment 4;
Embodiment
Below in conjunction with embodiment the utility model is further described.
Embodiment 1: the backlight of this netted high brightness angle reflection light guide plate, mainly comprise marginal ray source 4 and light guide plate 2, and marginal ray source 4 can be provided with luminescence chip, light emitting diode, cold-cathode tube or fluorescent tube etc. on request.Diffusion barrier 1 is sticked with pressure sensitive adhesive in light guide plate 2 fronts (optical plane), and brightness enhancement film 3 is sticked with pressure sensitive adhesive in the back side.Light guide plate 2 is "＜" near the salient angle shape 6 that the both sides in marginal ray sources 4 are designed to increase the xsect light-receiving area, to promote brightness.Be designed to ∧ shape line 5 on the light guide plate 2, its drift angle is at 90 ℃.Along with from the marginal ray source from the close-by examples to those far off, ∧ shape line 5 is designed to gradually change from shallow to deep.∧ shape line 5 is designed to straight line net.
Embodiment 2: salient angle shape 6 is
Shape, ∧ shape line 5 is designed to diagonal screen.
Embodiment 3: ∧ shape line 5 is designed to positive arc line net.
Embodiment 4: ∧ shape line 5 is designed to oblique arc line net.
Claims (4)
1, a kind of backlight of netted high brightness angle reflection light guide plate, mainly comprise marginal ray source (4) and light guide plate (2), be provided with diffusion barrier (1) above the light guide plate (2), be provided with brightness enhancement film (3) below, it is characterized in that: light guide plate (2) is designed to increase the salient angle shape (6) of xsect light-receiving area near the both sides in marginal ray source (4), be designed to netted ∧ shape line (5) on the light guide plate (2), the scope of its drift angle is between 85-120 ℃.
2, the backlight of netted high brightness angle reflection light guide plate according to claim 1, it is characterized in that described salient angle shape (6) for "＜" or
Shape.
3, the backlight of netted high brightness angle reflection light guide plate according to claim 1 is characterized in that along with from the marginal ray source from the close-by examples to those far off, and ∧ shape line (5) is designed to gradually change from shallow to deep.
4, according to the backlight of claim 1 or 2 or 3 described netted high brightness angle reflection light guide plate, it is characterized in that described ∧ shape line (5) is designed to straight line net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215190 CN2516997Y (en) | 2002-01-17 | 2002-01-17 | Back light source of net-shape high-brightness angle reflection light plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215190 CN2516997Y (en) | 2002-01-17 | 2002-01-17 | Back light source of net-shape high-brightness angle reflection light plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516997Y true CN2516997Y (en) | 2002-10-16 |
Family
ID=33694371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02215190 Expired - Fee Related CN2516997Y (en) | 2002-01-17 | 2002-01-17 | Back light source of net-shape high-brightness angle reflection light plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516997Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7374329B2 (en) | 2004-11-18 | 2008-05-20 | Tsinghua University | Light guide device and a backlight module using the same |
| CN100445829C (en) * | 2005-05-28 | 2008-12-24 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate |
| CN101373229B (en) * | 2007-08-20 | 2011-02-09 | 鸿富锦精密工业（深圳）有限公司 | LCD device and prismatic lens thereof |
-
2002
- 2002-01-17 CN CN 02215190 patent/CN2516997Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7374329B2 (en) | 2004-11-18 | 2008-05-20 | Tsinghua University | Light guide device and a backlight module using the same |
| CN100445827C (en) * | 2004-11-18 | 2008-12-24 | 清华大学 | Light-conducting board and backlight mould set |
| CN100445829C (en) * | 2005-05-28 | 2008-12-24 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate |
| CN101373229B (en) * | 2007-08-20 | 2011-02-09 | 鸿富锦精密工业（深圳）有限公司 | LCD device and prismatic lens thereof |
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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: 20021016 Termination date: 20100220 |