CN100419531C - Light guide device and back light module assmbly - Google Patents
Light guide device and back light module assmbly Download PDFInfo
- Publication number
- CN100419531C CN100419531C CNB2003101120318A CN200310112031A CN100419531C CN 100419531 C CN100419531 C CN 100419531C CN B2003101120318 A CNB2003101120318 A CN B2003101120318A CN 200310112031 A CN200310112031 A CN 200310112031A CN 100419531 C CN100419531 C CN 100419531C
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- CN
- China
- Prior art keywords
- light guide
- guiding device
- reflector plate
- guide plate
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to a light guide device. The present invention comprises a light guide plate and a reflecting sheet, wherein the light guide plate comprises at least one light incident surface, two corresponding light emergent surfaces and at least one lateral surface, the two light emergent surfaces are adjacent to the light incident surface, the lateral surface is adjacent to the light incident surface and is connected with the two light emergent surfaces, a containing space between the two light emergent surfaces is arranged in the light guide plate, and the reflecting sheet is arranged in the containing space.
Description
[technical field]
The present invention relates to a kind of guiding device and adopt the module backlight of this guiding device.
[background technology]
The liquid crystal display module be a kind of can not self-emission display apparatus, its demonstration is mainly by controlling passing through or the obstructed realization of coming of light beam that external light source sends, therefore need corresponding backlight or preceding optical mode group, this backlight or preceding optical mode group can realize Presentation Function with the beam direction display panel that external light source sent.
Seeing also Fig. 1, is the schematic perspective view of a kind of prior art module backlight.This module 8 backlight comprises a guiding device 81, a reflecting plate 82, a diffuser plate 83, a solar panel 84, a light source 85 and light source cover 86.This guiding device 81 comprises an incidence surface 811, a bottom surface 812, an exiting surface 813 and a side 814.Reflecting plate 82, guiding device 81, diffuser plate 83, solar panel 84 are docile and obedient the overlapping placement of preface, and light source 85 and light source cover 86 are placed on incidence surface 811 1 sides.The light beam that sends from light source 85 is through the reflection guiding guiding device 81 of light source cover 86, this light beam is through the reflection guiding diffuser plate 83 of guiding device 81 and reflecting plate 82, and become diffuse light through diffuser plate 83 scatterings, scattered light is assembled under solar panel 84 effects and guiding liquid crystal panel (figure does not show).
See also Fig. 2 and Fig. 3, when this module 8 backlight be applied in for example have in display screen 91 and outside during the Dual-band Handy Phone 9 of display screen 92, because it has only an exiting surface, be merely able to the single face bright dipping, for under the situation that does not increase product thickness, prior art is to establish an exiting surface again at the opposite face of existing exiting surface, provides area source to realize that double screen shows thereby need a pair of exiting surface to be respectively interior display screen 91 with outer display screen 92.But the outgoing light homogeneity of this module backlight is not high, thereby the display effect of the product of this module backlight is used in influence.
[summary of the invention]
In order to overcome the uneven shortcoming of prior art guiding device bright dipping, the invention provides a kind of emitting uniform guiding device.
In order to overcome the uneven shortcoming of prior art module bright dipping backlight, the invention provides a kind of emitting uniform module backlight.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of guiding device is provided, comprise a light guide plate and a reflector plate, this light guide plate comprises at least one incidence surface, two relative exiting surface and at least one sides, this two exiting surface is adjacent with this at least one incidence surface, adjacent this at least one incidence surface in this side and connect this two exiting surface, one spatial accommodation between two exiting surfaces wherein is set in this light guide plate, this side is provided with a slit that allows this reflector plate to pass through, and this reflector plate is arranged in this spatial accommodation by this slit.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of module backlight is provided, comprise a guiding device and at least one light source, this guiding device comprises a light guide plate and a reflector plate, this light guide plate comprises at least one incidence surface, two relative exiting surface and at least one sides, this two exiting surface is adjacent with this at least one incidence surface, adjacent this at least one incidence surface in this side and connect this two exiting surface, this at least one incidence surface setting relatively of this at least one light source, one spatial accommodation between two exiting surfaces wherein is set in this light guide plate, this side is provided with a slit that allows this reflector plate to pass through, and this reflector plate is arranged in this spatial accommodation by this slit.
Compare with prior art, the invention has the beneficial effects as follows: the reflector plate of this guiding device is positioned between two exiting surfaces, because this reflector plate is two-sided a plurality of sites is set all, can improve outgoing light homogeneity with incident light simultaneously to two exiting surface scatter reflections.
[description of drawings]
Fig. 1 is the schematic perspective view of a kind of prior art module backlight.
Fig. 2 is that a kind of Dual-band Handy Phone is renovated closed schematic perspective view.
Fig. 3 is that Dual-band Handy Phone shown in Figure 2 is renovated the schematic perspective view of opening.
Fig. 4 is the perspective exploded view of the present invention's module first embodiment backlight.
Fig. 5 is the side schematic view of the reflector plate of the present invention's module first embodiment backlight.
Fig. 6 is the light path synoptic diagram of the present invention's module first embodiment backlight.
Fig. 7 is the side schematic view of the reflector plate of the present invention's module second embodiment backlight.
Fig. 8 is the light path synoptic diagram of the present invention's module second embodiment backlight.
[embodiment]
Seeing also Fig. 4 and Fig. 5, is respectively the perspective exploded view of the present invention's module first embodiment backlight and the side schematic view of reflector plate.This module 1 backlight comprises a guiding device 2 and a light source 200, this guiding device 2 comprises a light guide plate 20 and a reflector plate 26, this light guide plate 20 is plate shaped, its material can be acryl resin, polycarbonate, polyvinyl resin or glass etc., this light guide plate 20 comprises exiting surface 22,23 and at least one side 24 that an incidence surface 21, two is relative.The incidence surface 21 of these at least one light source 200 relative these light guide plate 20 is provided with, this two exiting surface 22,23 adjacent these incidence surfaces 21, this side 24 adjacent these incidence surfaces 21 and connect this two exiting surface 22,23, its upper surface 28, lower surface 29 all is provided with a plurality of sites 27, this side 24 is provided with a slit 25 that allows this reflector plate 26 to pass through, be provided with one in this light guide plate 20 between two exiting surfaces 22, spatial accommodation between 23, this reflector plate 26 is arranged in this spatial accommodation, on this reflector plate 26, lower surface 28,29 all have reflection function and respectively relative 20 liang of exiting surfaces 22 of this light guide plate, 23 are provided with.This guiding device 2 also further comprises at least one reflection bar 210, and this reflection bar 210 comprises that one is attached to the reflecting surface 220 on this side 24, and this reflecting surface 220 can reflect light.
Seeing also Fig. 6, is the light path synoptic diagram of the present invention's module first embodiment backlight.Light sends from this light source 200, enter this guiding device 2 through incidence surface 21, a light part that enters 23 of reflector plate 26 and exiting surfaces is directly from exiting surface 23 outgoing, and another part light is behind 27 scatter reflections of the site of reflector plate 26 upper surfaces 28, finally from exiting surface 23 outgoing; And a light part that enters 22 of reflector plate 26 and exiting surfaces is directly from exiting surface 22 outgoing, and another part light from exiting surface 22 outgoing, thereby reaches the effect of two-sided bright dipping behind 27 scatter reflections of the site of reflector plate 26 upper surfaces 29.
Seeing also Fig. 7 and Fig. 8, is the side schematic view and the light path synoptic diagram of the reflector plate of the present invention's module second embodiment backlight.The difference of this reflector plate 36 and reflector plate 26 is that the upper surface 38 of reflector plate 36 is provided with a plurality of sites 37, and lower surface 39 has only the subregion that a plurality of sites 37 are set, and the position of this subregion can change according to different demands.
Guiding device of the present invention and module backlight are not limited to said structure, and for example: the shape of this light guide plate also can be wedge shape, bending shape or arc; This reflector plate can be wedge shape or other shapes according to the bright dipping demand, the a plurality of sites that distributed on the reflector plate can be circular, also can be square, rhombus, ellipse or other shape, these a plurality of sites can be protruded or be recessed, and it can be produced on this reflector plate with the mode of printing or ejection formation; This light source can be cold cathode fluorescent lamp or light emitting diode.
Claims (9)
1. guiding device, comprise a light guide plate and a reflector plate, this light guide plate comprises at least one incidence surface, two relative exiting surface and at least one sides, adjacent this at least one incidence surface in this side and connect this two exiting surface, this two exiting surface is adjacent with this at least one incidence surface, it is characterized in that: a spatial accommodation between two exiting surfaces is set in this light guide plate, and this side is provided with a slit that allows this reflector plate to pass through, and this reflector plate is arranged in this spatial accommodation by this slit.
2. guiding device according to claim 1 is characterized in that: this guiding device further comprises at least one reflection bar, and this reflection bar comprises a reflecting surface, and this reflecting surface is attached at this side and is provided with.
3. guiding device according to claim 1 is characterized in that: this light guide plate is plate shaped, wedge shape, bending shape or arc.
4. guiding device according to claim 1 is characterized in that: this reflector plate is two-sided all to be provided with a plurality of sites.
5. guiding device according to claim 1 is characterized in that: a surface of this reflector plate all is provided with a plurality of sites, and another surface has only the subregion that a plurality of sites are set.
6. according to claim 4 or 5 described guiding devices, it is characterized in that: these a plurality of sites are square, rhombus or ellipse.
7. according to claim 4 or 5 described guiding devices, it is characterized in that: these a plurality of sites can be produced on this reflector plate with the mode of printing or ejection formation.
8. module backlight, comprise a guiding device and at least one light source, this guiding device comprises a light guide plate and a reflector plate, this light guide plate comprises at least one incidence surface, two relative exiting surface and at least one sides, this two exiting surface is adjacent with this at least one incidence surface, adjacent this at least one incidence surface in this side and connect this two exiting surface, this at least one incidence surface setting relatively of this at least one light source, it is characterized in that: a spatial accommodation between two exiting surfaces is set in this light guide plate, this side is provided with a slit that allows this reflector plate to pass through, and this reflector plate is arranged in this spatial accommodation by this slit.
9. module backlight according to claim 8 is characterized in that: this at least one light source is cold cathode fluorescent lamp or light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101120318A CN100419531C (en) | 2003-11-01 | 2003-11-01 | Light guide device and back light module assmbly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101120318A CN100419531C (en) | 2003-11-01 | 2003-11-01 | Light guide device and back light module assmbly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1612018A CN1612018A (en) | 2005-05-04 |
| CN100419531C true CN100419531C (en) | 2008-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101120318A Expired - Fee Related CN100419531C (en) | 2003-11-01 | 2003-11-01 | Light guide device and back light module assmbly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100419531C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977648B (en) * | 2015-06-24 | 2018-03-09 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and display device |
| CN105445849A (en) * | 2016-01-04 | 2016-03-30 | 合肥京东方显示光源有限公司 | Light guide plate and manufacturing method thereof, backlight module, and display apparatus |
| CN105717706A (en) * | 2016-04-28 | 2016-06-29 | 青岛海信电器股份有限公司 | Double-sided backlight source and double-sided display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429291A (en) * | 1990-05-25 | 1992-01-31 | Sumitomo Electric Ind Ltd | Light transmission plate |
| JPH08160230A (en) * | 1994-12-12 | 1996-06-21 | J T:Kk | Display device using surface light source |
| EP0818701A2 (en) * | 1996-07-09 | 1998-01-14 | Harness System Technologies Research, Ltd. | Display device |
| US6014192A (en) * | 1996-07-16 | 2000-01-11 | Thomson-Csf | Illumination device and application thereof to the illumination of a transmissive screen |
| JP2000258766A (en) * | 1999-03-04 | 2000-09-22 | Sanyo Electric Co Ltd | Lighting type liquid crystal display device |
| JP2003185994A (en) * | 2001-12-14 | 2003-07-03 | Nanox Corp | Liquid crystal display device |
| JP4029291B2 (en) * | 2003-09-02 | 2008-01-09 | 福田金属箔粉工業株式会社 | Negative electrode material for lithium secondary battery and method for producing the same |
-
2003
- 2003-11-01 CN CNB2003101120318A patent/CN100419531C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0429291A (en) * | 1990-05-25 | 1992-01-31 | Sumitomo Electric Ind Ltd | Light transmission plate |
| JPH08160230A (en) * | 1994-12-12 | 1996-06-21 | J T:Kk | Display device using surface light source |
| EP0818701A2 (en) * | 1996-07-09 | 1998-01-14 | Harness System Technologies Research, Ltd. | Display device |
| US6014192A (en) * | 1996-07-16 | 2000-01-11 | Thomson-Csf | Illumination device and application thereof to the illumination of a transmissive screen |
| JP2000258766A (en) * | 1999-03-04 | 2000-09-22 | Sanyo Electric Co Ltd | Lighting type liquid crystal display device |
| JP2003185994A (en) * | 2001-12-14 | 2003-07-03 | Nanox Corp | Liquid crystal display device |
| JP4029291B2 (en) * | 2003-09-02 | 2008-01-09 | 福田金属箔粉工業株式会社 | Negative electrode material for lithium secondary battery and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1612018A (en) | 2005-05-04 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080917 Termination date: 20171101 |