CN2324556Y - Back light plate of light conducting plate with prism structure - Google Patents
Back light plate of light conducting plate with prism structure Download PDFInfo
- Publication number
- CN2324556Y CN2324556Y CN 98201156 CN98201156U CN2324556Y CN 2324556 Y CN2324556 Y CN 2324556Y CN 98201156 CN98201156 CN 98201156 CN 98201156 U CN98201156 U CN 98201156U CN 2324556 Y CN2324556 Y CN 2324556Y
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- Prior art keywords
- light
- guide plate
- prism structure
- light guide
- plate
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Abstract
The utility model relates to a back light plate of a light conducting plate with a prism structure. The utility model is proposed for providing the back light plate of a light conducting plate with a prism structure which raises the brightness of the front surface of the back light plate and has low cost, less power consumption and good use performance. The utility model is composed of a light conducting plate and a plurality of light emitting diodes. The surface of the light conducting plate is provided with a prism structure. A plurality of light emitting diodes are included by the light conducting plate, and are used as the light source of the back light plate.
Description
The utility model belongs to optical element, particularly a kind of backlight with band prism structure light guide plate.
At the function display window place of various products, use the backlight of forming by light guide plate and light source to show its function usually, when using night,, function is shown produce a desired effect especially with the light source of backlight.The backlight of commonly using of being made up of light guide plate and light emitting diode, in use, its luminance shortage is difficult to meet the demands.For improving the brightness of backlight.Or the quantity of the light emitting diode of the higher wafer of use brightness degree and increase light emitting diode, cost of products is improved, and power consumption is big.As shown in Figure 1, adopt the backlight of forming by light guide plate, diffusion sheet and a plurality of light emitting diode usually, impose special processings such as texture or alligatoring on the positive and negative surface of light guide plate, make to be ground-glass appearance.Light guide plate places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes are located on the circuit of circuit board, and are forgiven below or side in light guide plate, the light source of light source board as a setting.Being opaque diffusion sheet is covered on the light guide plate.The light guide plate of this structure, the special processing on its positive and negative surface of light guide plate, weakened light intensity, and for light source is on average penetrated on light-emitting area, dwindling visible angle, increase backlight illumination, place the backlight surface with opaque diffuser plate after, its brightness increases limited, but that cost improves is quite a lot of.
The purpose of this utility model provide a kind ofly improve the backlight front face brightness, cost is low, power consumption is little, usability is good backlight with band prism structure light guide plate.
The utility model is made up of light guide plate and a plurality of light emitting diode, and the light guide plate surface is provided with prism structure.A plurality of light emitting diodes are forgiven by light guide plate, with the light source as backlight.
Wherein:
Prism structure is that single shaft is to prism structure.
Prism structure is that twin shaft is to prism structure.
A plurality of light emitting diodes are forgiven below light guide plate.
A plurality of light emitting diodes are forgiven the side in light guide plate.
Because the utility model is made up of light guide plate and a plurality of light emitting diode, the light guide plate surface is provided with prism structure.A plurality of light emitting diodes are forgiven by light guide plate, with the light source as backlight.During use, light guide plate is gone in light direct projection as the light emitting diode of light source, through the prism structure average scattering on the light guide plate on light-emitting area, reflect through prism structure again, it is evenly distributed in whole light-emitting area, make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.Not only improve front face brightness, usability is good, and because opaque diffuser plate need not be set, or use the light emitting diode of the higher wafer of brightness degree and increases the quantity of light emitting diode, cost is low, power consumption is little, thereby reaches the purpose of this utility model.
Fig. 1, backlight decomposition texture schematic isometric for commonly using.
Fig. 2, be the utility model embodiment one structural representation stereographic map.
Fig. 3, be A portion partial enlarged drawing among Fig. 2.
Fig. 4, be among Fig. 2 B to view.
Fig. 5, be the utility model embodiment two structural representation stereographic maps.
Fig. 6, be C portion partial enlarged drawing among Fig. 5.
Fig. 7, be the utility model embodiment three structural representation stereographic maps.
Fig. 8, be D portion partial enlarged drawing among Fig. 7.
Fig. 9, be the utility model embodiment four structural representation stereographic maps.
Figure 10, be E portion partial enlarged drawing among Fig. 9.
Figure 11, be the utility model embodiment five structural representation stereographic maps.
Figure 12, be F portion partial enlarged drawing among Figure 11.
Below in conjunction with accompanying drawing the utility model is further elaborated.
Embodiment one
As Fig. 2, shown in Figure 3, the utility model is made up of light guide plate 1 and a plurality of light emitting diode 2, and light guide plate 1 surface is provided with and the horizontal prism structure 11 of the single shaft of its one ejection formation.According to the angle θ of the visual angle of front light decision prism structure 11, make it to cooperate the visible angle of LCD (LCD).As shown in Figure 4, the angle θ of prism structure 11 is 60 °～130 °, is preferably 90 °.The degree of depth of prism structure 11 is about 0.025mm～0.2mm.The width of prism structure 11 is about 0.05mm～0.30mm.Light guide plate 1 places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes 2 are located on the circuit of circuit board, and at each light emitting diode 2 surface-coated silastic, but so that light guide plate 1 is gone in the light source direct projection.During assembling, a plurality of light emitting diodes 2 are forgiven the side in light guide plate 1; Also can be forgiven below light guide plate 1; With light source as backlight.During use, light guide plate 1 is gone in light direct projection as the light emitting diode 2 of light source, prism structure 11 average scatterings on light guide plate 1 are on light-emitting area, return through prism structure 11 refractions again, it is evenly distributed in whole light-emitting area, thereby make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.
Embodiment two
As Fig. 5, shown in Figure 6, the utility model is made up of light guide plate 3 and a plurality of light emitting diode 2, and light guide plate 3 surfaces are provided with and the vertical prism structure 31 of the single shaft of its one ejection formation.According to the angle θ of the visual angle of front light decision prism structure 31, make it to cooperate the visible angle of LCD (LCD).As shown in Figure 4, the angle θ of prism structure 31 is 60 °～130 °, is preferably 90 °.The degree of depth of prism structure 31 is about 0.025mm～0.2mm.The width of prism structure 31 is about 0.05mm～0.30mm.Light guide plate 3 places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes 2 are located on the circuit of circuit board, and at each light emitting diode 2 surface-coated silastic, but so that light guide plate 3 is gone in the light source direct projection.During assembling, a plurality of light emitting diodes 2 are forgiven the side in light guide plate 3; Also can be forgiven below light guide plate 3; With light source as backlight.During use, light guide plate 3 is gone in light direct projection as the light emitting diode 2 of light source, prism structure 31 average scatterings on light guide plate 3 are on light-emitting area, return through prism structure 31 refractions again, it is evenly distributed in whole light-emitting area, thereby make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.
Embodiment three
As Fig. 7, shown in Figure 8, the utility model is made up of light guide plate 4 and a plurality of light emitting diode 2, and light guide plate 4 surfaces are provided with and the oblique prism structure 41 of the single shaft of its one ejection formation.According to the angle θ of the visual angle of front light decision prism structure 41, make it to cooperate the visible angle of LCD (LCD).As shown in Figure 4, the angle θ of prism structure 41 is 60 °～130 °, is preferably 90 °.The degree of depth of prism structure 41 is about 0.025mm～0.2mm.The width of prism structure 41 is about 0.05mm～0.30mm.Light guide plate 4 places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes 2 are located on the circuit of circuit board, and at each light emitting diode 2 surface-coated silastic, but so that light guide plate 4 is gone in the light source direct projection.During assembling, a plurality of light emitting diodes 2 are forgiven the side in light guide plate 4; Also can be forgiven below light guide plate 4; With light source as backlight.During use, light guide plate 4 is gone in light direct projection as the light emitting diode 2 of light source, prism structure 41 average scatterings on light guide plate 4 are on light-emitting area, return through prism structure 41 refractions again, it is evenly distributed in whole light-emitting area, thereby make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.
Embodiment four
As Fig. 9, shown in Figure 10, the utility model is made up of light guide plate 5 and a plurality of light emitting diode 2, and light guide plate 5 surfaces are provided with the twin shaft forward prism structure 51 with its one ejection formation.According to the angle θ of the visual angle of front light decision prism structure 51, make it to cooperate the visible angle of LCD (LCD).As shown in Figure 4, the angle θ of prism structure 51 is 60 °～130 °, is preferably 90 °.The degree of depth of prism structure 51 is about 0.025mm～0.2mm.The width of prism structure 51 is about 0.05mm～0.30mm.Light guide plate 5 places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes 2 are located on the circuit of circuit board, and at each light emitting diode 2 surface-coated silastic, but so that light guide plate 5 is gone in the light source direct projection.During assembling, a plurality of light emitting diodes 2 are forgiven the side in light guide plate 5; Also can be forgiven below light guide plate 5; With light source as backlight.During use, light guide plate 5 is gone in light direct projection as the light emitting diode 2 of light source, prism structure 51 average scatterings on light guide plate 5 are on light-emitting area, return through prism structure 51 refractions again, it is evenly distributed in whole light-emitting area, thereby make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.
Embodiment five
As Figure 11, shown in Figure 12, the utility model is made up of light guide plate 6 and a plurality of light emitting diode 2, and light guide plate 6 surfaces are provided with and the oblique prism structure 61 of the twin shaft of its one ejection formation.According to the angle θ of the visual angle of front light decision prism structure 61, make it to cooperate the visible angle of LCD (LCD).As shown in Figure 4, the angle θ of prism structure 61 (LCD) is 60 °～130 °, is preferably 90 °.The degree of depth of prism structure 61 is about 0.025mm～0.2mm.The width of prism structure 61 is about 0.05mm～0.30mm.Light guide plate 6 places on the leaded light panel seat of putting circuit board, and a plurality of light emitting diodes 2 are located on the circuit of circuit board, and at each light emitting diode 2 surface-coated silastic, but so that light guide plate 6 is gone in the light source direct projection.During assembling, a plurality of light emitting diodes 2 are forgiven the side in light guide plate 6; Also can be forgiven below light guide plate 6; With light source as backlight.During use, light guide plate 6 is gone in light direct projection as the light emitting diode 2 of light source, prism structure 61 average scatterings on light guide plate 6 are on light-emitting area, return through prism structure 61 refractions again, it is evenly distributed in whole light-emitting area, thereby make the light average scattering in light-emitting area, brightness increase and be evenly distributed, the visual angle dwindles.
Claims (5)
1, a kind of backlight with band prism structure light guide plate, it is made up of light guide plate and a plurality of light emitting diode, and a plurality of light emitting diodes are forgiven by light guide plate, with the light source as backlight, it is characterized in that described light guide plate surface is provided with prism structure.
2, the backlight with band prism structure light guide plate according to claim 1 is characterized in that described prism structure is that single shaft is to prism structure.
3, the backlight with band prism structure light guide plate according to claim 1 is characterized in that described prism structure is that twin shaft is to prism structure.
4, the backlight with band prism structure light guide plate according to claim 1 and 2 is characterized in that described a plurality of light emitting diode is forgiven below light guide plate.
5,, it is characterized in that described a plurality of light emitting diode forgiven the side in light guide plate according to claim 1 or 3 described backlight with band prism structure light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201156 CN2324556Y (en) | 1998-02-13 | 1998-02-13 | Back light plate of light conducting plate with prism structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201156 CN2324556Y (en) | 1998-02-13 | 1998-02-13 | Back light plate of light conducting plate with prism structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2324556Y true CN2324556Y (en) | 1999-06-16 |
Family
ID=33958521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98201156 Expired - Fee Related CN2324556Y (en) | 1998-02-13 | 1998-02-13 | Back light plate of light conducting plate with prism structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2324556Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297849C (en) * | 2003-02-19 | 2007-01-31 | 明基电通股份有限公司 | Light-emitting diode backlight module |
| CN1330999C (en) * | 2002-09-26 | 2007-08-08 | Lg.飞利浦Lcd有限公司 | Background device of liquid crystal device and manufacture thereof |
| CN100346214C (en) * | 2004-04-07 | 2007-10-31 | 友达光电股份有限公司 | Backlight modular |
| CN100378537C (en) * | 2002-12-05 | 2008-04-02 | 三星电子株式会社 | Backlight assembly and liquid crystal display apparatus having the same |
| CN100412649C (en) * | 2004-08-27 | 2008-08-20 | 孙庆成 | Straight down type back light module |
| US7559683B2 (en) | 2004-08-30 | 2009-07-14 | Samsung Electronics Co., Ltd. | Backlight assembly, light guiding plate including plurality of discontinuously formed prisms |
| CN100578264C (en) * | 2004-05-11 | 2010-01-06 | 出光兴产株式会社 | Prism-integrated light diffusion plate and method for manufacturing the same |
| CN101221255B (en) * | 2006-07-27 | 2012-01-18 | 罗门哈斯丹麦金融有限公司 | Light-redirecting film containing optical modification layer |
| CN102331640A (en) * | 2011-09-23 | 2012-01-25 | 东莞市亚星半导体有限公司 | Liquid crystal backlight display module |
| CN102984850A (en) * | 2011-09-05 | 2013-03-20 | 佳能株式会社 | Lighting apparatus, liquid crystal display apparatus and control method therefor |
-
1998
- 1998-02-13 CN CN 98201156 patent/CN2324556Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330999C (en) * | 2002-09-26 | 2007-08-08 | Lg.飞利浦Lcd有限公司 | Background device of liquid crystal device and manufacture thereof |
| CN100378537C (en) * | 2002-12-05 | 2008-04-02 | 三星电子株式会社 | Backlight assembly and liquid crystal display apparatus having the same |
| CN1297849C (en) * | 2003-02-19 | 2007-01-31 | 明基电通股份有限公司 | Light-emitting diode backlight module |
| CN100346214C (en) * | 2004-04-07 | 2007-10-31 | 友达光电股份有限公司 | Backlight modular |
| CN100578264C (en) * | 2004-05-11 | 2010-01-06 | 出光兴产株式会社 | Prism-integrated light diffusion plate and method for manufacturing the same |
| CN100412649C (en) * | 2004-08-27 | 2008-08-20 | 孙庆成 | Straight down type back light module |
| US7559683B2 (en) | 2004-08-30 | 2009-07-14 | Samsung Electronics Co., Ltd. | Backlight assembly, light guiding plate including plurality of discontinuously formed prisms |
| CN101221255B (en) * | 2006-07-27 | 2012-01-18 | 罗门哈斯丹麦金融有限公司 | Light-redirecting film containing optical modification layer |
| CN102984850A (en) * | 2011-09-05 | 2013-03-20 | 佳能株式会社 | Lighting apparatus, liquid crystal display apparatus and control method therefor |
| CN102984850B (en) * | 2011-09-05 | 2016-05-04 | 佳能株式会社 | Light source, liquid crystal display and control method thereof |
| CN102331640A (en) * | 2011-09-23 | 2012-01-25 | 东莞市亚星半导体有限公司 | Liquid crystal backlight display module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |