CN101149523A - Backlight module and lamp possessing direct type light guiding board - Google Patents
Backlight module and lamp possessing direct type light guiding board Download PDFInfo
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- CN101149523A CN101149523A CNA2006101592134A CN200610159213A CN101149523A CN 101149523 A CN101149523 A CN 101149523A CN A2006101592134 A CNA2006101592134 A CN A2006101592134A CN 200610159213 A CN200610159213 A CN 200610159213A CN 101149523 A CN101149523 A CN 101149523A
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Abstract
This invention discloses a sort of back-light module, and it consists of the printed circuit board, several light-emitting diodes, and the light board. The several light-emitting diodes which is arrayed in the array manner or the random array is fixed in the printed circuit board in order to offer the lighting power which is offered to the back-light module. The light board which has the in-light face and the out-light face is fixed in several light-emitting diodes, the in-light face of the light board is the flat curved face or the curved face which has the random curvature, the out-light face of the light board has several flute which makes the light power which is offered by the light-emitting diode to reach the total reflection in the light board effectively and after the power is emitted by the out-light face of the light board it can be mixed in the light board equably in order to make the light power which is emitted by the out-light face of the light board to have the symmetrical high light energy.
Description
Technical field
The present invention is about a kind of backlight module, particularly a kind of backlight module with direct type light guide plate allows the light source that light-emitting diode component provided by the light source incident structure of light guide plate, produces total reflection in light guide plate, and even mixed light, to obtain having the light source of high brightness and homogeneous energy.
Background technology
The traditional backlight module is all in side direction leaded light mode, and (light guide plate, LGP) side direction imports, in the hope of the homogenising of light source by light guide plate with light source.But this kind mode can't effectively be used the light ray energy of wide-angle, and module side to the space that can arrange light source be vulnerable to the restriction so that make brightness of backlight module to promote.
Along with the development of lcd technology, the scope that display panels is used is more and more wide, and for example, digital camera, personal digital assistant (PDA), computer screen, handset displays screen are with flat-surface television or the like.Backlight module (back light module) then is one of vital part of LCD Panel generation.
According to the position of the illuminating source of backlight module, backlight module is side type (edge type) mostly.The light source of side type backlight module is to take one-sided or the bilateral setting, and the scattering direction that sees through the light-guide plate guides light source is to provide area source.Traditional side type backlight module comprises light emitting diode, light guide plate and reflecting plate.After light emitting diode provides light source, after the reflection via the mixed light of light guide plate and reflecting plate, light source can be spread uniformly.Though yet side type backlight module has thin thickness, have the lower shortcoming of brightness and produce.
Summary of the invention
In above-mentioned background of invention, therefore many shortcomings that backlight module produced of traditional side direction type light guide plate the invention provides a kind of backlight module with direct type light guide plate that produces high brightness and homogeneous energy.
The object of the present invention is to provide a kind of light guide plate,, the light source that light emitting diode provided is produced total reflection in light guide plate, have the light source of high brightness and homogeneous energy with generation by this light source incident structure with light source incident structure.
A further object of the present invention, be to provide a kind of light source incident structure exiting surface that has, and incidence surface is the light guide plate with curved surface of any curvature, the exiting surface that cooperates light source incident structure by this curved surface, make in light guide plate, can produce total reflection, to form the light source with high brightness and energy even of even light mixing by the light source that light emitting diode provided.
A further object of the present invention is a plurality of sites, lenticule (Microlens) to be set in the incidence surface of light guide plate or at exiting surface V cutting (V-cut) structure to be set.When light emitting diode provides after light source enters light guide plate, these light sources can carry out total reflection in light guide plate, when source reflection arrives these sites, lenticule (Microlens) or V cutting (V-cut) structure, these sites, lenticule (Microlens) or V cutting type (V-cut) structure can change refractive direction and the reflection angle of light source in light guide plate, make light source to launch by the exiting surface of light guide plate in position.
According to above-described purpose, the present invention discloses a kind of backlight module with direct type light guide plate, comprise printed circuit board (PCB), a plurality of light emitting diode and light guide plate, wherein, a plurality of light emitting diodes can array or with any arrangement mode, be arranged on the printed circuit board (PCB), to provide back light needed illuminating source.Light guide plate is arranged on a plurality of light emitting diodes, wherein, the incidence surface of light guide plate can be smooth surface, or uneven surface, the exiting surface of light guide plate has the light source incident structure that is made of a plurality of groove, light source incident structure can allow the light source that light emitting diode provided, allowing light source produce total reflection ground imports in the light guide plate, allow before these light sources are launched by the exiting surface of light guide plate, can in light guide plate, produce uniform mixed light, make that being launched by the exiting surface of light guide plate is the light source with high brightness and homogeneous energy.
Description of drawings
Fig. 1 is a technology disclosed according to the present invention, has the vertical view of the light-emitting diode component of direct type light guide plate;
Fig. 2 A to Fig. 2 C is first, second and third preferred embodiment disclosed according to the present invention, and expression has the synoptic diagram of the light-emitting diode component of direct type light guide plate;
Fig. 3 A and Fig. 3 B are the disclosed according to the present invention the 4th and the 5th preferred embodiments, represent the synoptic diagram with light-emitting diode component of direct type light guide plate disclosed in this invention; And
Fig. 4 A and Fig. 4 B are the disclosed according to the present invention the 6th and the 7th preferred embodiments, and expression has the synoptic diagram of the light-emitting diode component of direct type light guide plate.
The primary clustering symbol description
10 have the backlight module of direct type light guide plate
20 printed circuit board (PCB)s
30 light guide plate
301 first surfaces (incidence surface)
302 second surfaces (exiting surface)
32 light source incident structures
321 grooves
331 sites
34 uneven surfaces
361 uneven surfaces
362 uneven surfaces
401 light emitting diodes
402 light emitting diode package assemblies
50 reflective coatings
Embodiment
Some embodiments of the present invention can be described in detail as follows.Yet except describing in detail, the present invention can also be widely implements at other embodiment, and scope of the present invention do not limited, and it is as the criterion with claims.
See also Fig. 1, represent the vertical view with backlight module of direct type light guide plate disclosed in this invention.Backlight module 10 comprises printed circuit board (PCB) 20, a plurality of light emitting diode 401 and has the light guide plate of light source incident structure 32 (light guide plate) 30.Wherein a plurality of light emitting diodes 401 can be arranged on the printed circuit board (PCB) 20, in order to the illuminating source of required various wavelength to be provided in array (array) mode or with any (random) arrangement mode.At this, light source incident structure 32 corresponding a plurality of light-emitting diode components 401 and being provided with, comprise a plurality of light-emitting diode chip for backlight unit in these light-emitting diode components 401, it can be the light-emitting diode chip for backlight unit with different wave length, as white light emitting diode chip or RGB light-emitting diode chip for backlight unit, to 680nm, its reference color temperature is by 2200K to 10000K by 420nm for its wavelength coverage.
In addition, light guide plate 30 has an incidence surface 301 and an exiting surface 302, wherein light source incident structure 32 is arranged on exiting surface 302, the surface of light source incident structure 32 is an inclined surface, it can be cambered surface or the curved surface with any curvature, as long as the shape of this inclined surface, be enough to make the illuminating source of light emitting diode 401 backlight module that provides, in light guide plate 30, can produce total reflection, and the light source of generation even light mixing all is can be useful among each embodiment disclosed in this invention.Then, the light source that imports through light source incident structure 32 produces total reflection in light guide plate 30, via the exiting surface 302 of light guide plate 30, these light emitted with high brightness and homogeneous energy are gone out again.In disclosed embodiment of this invention, the material of light guide plate 30 can be glass, polymethylmethacrylate (PMMA), polycarbonate (PC), cycloolefine polymer (COC), PET or other macromolecular material.
Then Fig. 2 A, Fig. 2 B and Fig. 2 C represent first, second and third preferred embodiment with backlight module of direct type light guide plate disclosed in this invention.At first, see also Fig. 2 A, in the present embodiment, backlight module 10 comprises: printed circuit board (PCB) 20, a plurality of light emitting diode 401 are arranged on the printed circuit board (PCB) 20 with array (array) or with any (random) arrangement mode.Then, the light guide plate 30 with first surface 301 and second surface 302 is arranged on a plurality of light emitting diodes 401.Wherein, the first surface 301 of light guide plate 30 is the light source incidence surface, and can be a flat surfaces, and the second surface 302 of light guide plate 30 is the light source exiting surface, and has the light source incident structure 32 that is made of a plurality of grooves 321.The purpose of light source incident structure 32 is the light sources in order to allow light emitting diode 401 be provided, import light guide plate 30 via light source incident structure 32 in the total reflection mode, in light guide plate 30, produce total reflection then, make light source in light guide plate 30, to mix and high brightness can be arranged.At last, launch via the exiting surface 302 of light guide plate 30 again.
In addition, in the present embodiment, the position of each light emitting diode 401 is corresponding to each groove 321 of light guide plate 30, this is the light source in order to allow light emitting diode 401 be provided, can effectively import in the light guide plate 30, the lower surface (not being shown among Fig. 2 A and Fig. 2 B) by these grooves 321 produces total reflection in light guide plate 30 then.
At this, what specify is that in each embodiment disclosed in this invention, the arrangement mode of a plurality of light emitting diodes 401 on printed circuit board (PCB) 20 is to describe in the arrayed mode.Simultaneously, in accompanying drawing disclosed in this invention, represent, yet in the present invention, a plurality of light emitting diodes 401 do not limit with array way and arrange, and can be arranged in any way on the printed circuit board (PCB) 20 yet in the arrayed mode yet.
Therefore, when light emitting diode 401 provides light source, these light sources can enter in the light guide plate 30 by the incidence surface (first surface) 301 of these light guide plate 30, produce total reflections by a plurality of grooves 321 at the exiting surface (second surface) 302 of light guide plate 30, make these light sources in light guide plate 30, can produce total reflection, and even light mixing then, is gone out light emitted via the second surface (exiting surface) 302 of light guide plate 30 again.
Similarly, see also Fig. 2 B, represent the synoptic diagram of another preferred embodiment of the backlight module with direct type light guide plate disclosed in this invention.Employed component Name, material and function are all identical with the disclosed structure of Fig. 2 A in Fig. 2 B, therefore repeat no more.At this, be noted that, the difference of Fig. 2 B and Fig. 2 A is, for the light source that allows light emitting diode 401 be provided can produce total reflection before importing light guide plate 30, and for the most light source that makes in light guide plate 30, therefore, in the present embodiment, dip plane (part that concaves) in a plurality of grooves 321 of light guide plate 30 second surfaces, plate one deck reflective coating 50, the material of this reflective coating 50 can be dielectric material or metal, and the mode of its formation can be with coating (coating) or sputter (sputtering).The light source that is provided by light emitting diode 401, guiding enters after the light guide plate 30, get to reflective coating 50 again, and generation reflection/refraction, and can obtain even light mixing and have the light source of high brightness, by the exiting surface 302 of light guide plate 30, the part that is covered by metallic diaphragm 50 is not launched then.Note at this, when groove 321 is designed to make the light source total reflection, can omit this reflective coating 50.Yet,, make light source import light guide plate 30 in the total reflection mode because the error of manufacture craft when groove 321 can't be guaranteed the light source total reflection, can be utilized the setting of reflective coating 50.Therefore, the setting of reflective coating 50 is that do not exceed with embodiment in its shape, size, position so that light source imports light guide plate 30 in the total reflection mode is purpose.
Then see also Fig. 2 C, represent the synoptic diagram of a preferred embodiment again with backlight module of direct type light guide plate disclosed in this invention.Similarly, employed component Name, material and function are all identical with Fig. 2 A and the disclosed structure of Fig. 2 B in Fig. 2 C, therefore repeat no more.At this, be noted that, difference at Fig. 2 C and Fig. 2 B is, have a plurality of sites 331 below the light guide plate 30 in Fig. 2 C, lenticule (not expression in the drawings), these sites 331 are in order to allow light source that light emitting diode 401 provided import after the light guide plate 30, the light source incident structure 32 of light guide plate 30 can make these light sources produce total reflection, when these source reflections during to these sites 331, these sites 331 can change light source reflection paths and the reflection angle in light guide plate 30 originally, make these light sources to launch in the exiting surface 302 default positions of light guide plate 30.At this, be noted that to be positioned at light guide plate 30 belows except site 331, can also be lenticule (microlens) (on figure, not representing).Though reach in the present invention in the corresponding accompanying drawing of embodiment institute with the site as application, but be not limited thereto.For example, V cutting type structure (not representing on figure) also can be arranged on the predeterminated position of exiting surface 302, when light source when total reflection is to the lateral margin of V cutting type structure in light guide plate 30, will change the light source refraction angle and launches from light guide plate 30.
In addition, for the brightness that increases LED source with the energy even degree, also comprise layer of metal coatings 50 at the concave part (surface that concaves) of light source incident structure 32.Therefore, in light guide plate 30 by light source incident structure 32 and reflective coating 50, the light source that is provided by light emitting diode 401, guiding enters after the light guide plate 30, get to reflective coating 50 again, and generation reflection/refraction, and can obtain even light mixing and have the light source of high brightness, can change the reflection/refraction path of light source then by these sites 331, lenticule or the V cutting type structure in the light guide plate 30, on the exiting surface 302 by light guide plate 30, the part that is covered by metallic diaphragm 50 is not launched then.
Then, Fig. 3 A and Fig. 3 B represent the 4th and the 5th preferred embodiment with backlight module of direct type light guide plate disclosed in this invention.At first, see also Fig. 3 A, backlight module 10 with direct type light guide plate comprises: printed circuit board (PCB) 20, a plurality of light emitting diode 401 and light guide plate 30, wherein a plurality of light emitting diodes 401 are arranged on the printed circuit board (PCB) 20 with array way, and are positioned at first surface 301 belows of light guide plate 30.In addition, the first surface 301 of light guide plate 30 is a uneven surface 361, and this uneven surface 361 can be the ball-type or the surface of non-sphere, and its shape can be bowl-shape, U type or the curved surface with any curvature.Second surface 302 in light guide plate 30 then is to have the light source incident structure 32 that is made of a plurality of grooves 321.In the present embodiment, the first surface 301 of light guide plate 30 is designed to uneven surface 361, this is for the light source that allows light emitting diode 401 be provided, and can produce total reflection in light guide plate 30 by this uneven surface 361, make light source can be in light guide plate 30 even light mixing.
Therefore, in the present embodiment, when light emitting diode 401 provides light source, these light sources can be by these uneven surfaces 361 with different angles, be gone into to inject in the light guide plate 30 by the upper surface 34 of uneven surface 361, penetrate structure 32 with these light source total reflections by light source then at the second surface 302 of light guide plate 30, make the light source that in light guide plate 30, can form even light mixing, and then launch via the second surface that is positioned at light guide plate 30 (exiting surface) 302.
Therefore, can be according to the above, the advantage that can know present embodiment is, can be by the light source that light emitting diode 401 is provided by the uneven surface 361 of light guide plate 30, and cooperate light source incident structure 32, and in light guide plate 30, produce the total reflection path, make these light sources in light guide plate 30, mix, and produce light source, and then launch via the second surface (exiting surface) 302 of light guide plate 30 with high brightness and homogeneous energy.
Then, see also the synoptic diagram that Fig. 3 B represents another preferred embodiment of light-emitting diode component disclosed in this invention.Employed component Name, material and function are all identical with the disclosed structure of Fig. 3 A in Fig. 3 B, therefore repeat no more.At this, be noted that the difference of Fig. 3 B and Fig. 3 A is, for the light source that allows light emitting diode 401 be provided can produce total reflection in light guide plate 30.Therefore, in the present embodiment, plate one deck reflective coating 50 at the inclined surface (part that concaves) of a plurality of grooves 32 on light guide plate 30 surfaces, the material of this reflective coating 50 can be dielectric material or metal.
Therefore, when light emitting diode 401 provides light source, and when entering light guide plate 30 via the incidence surface 301 of light guide plate 30, by of the generation reflection of these light sources in the light source incident structure 32 of the second surface 302 of light guide plate 30, and the light source of generation even light mixing, the light source that also light emitting diode 401 is provided simultaneously, guiding enters after the light guide plate 30, get to reflective coating 50 again, and produce reflection/refraction, and can obtain even light mixing and have the light source of high brightness, allow these light sources can carry out total reflection, do not scatter and disappear and do not have light source, and then launch via the second surface that is positioned at light guide plate 30 (exiting surface) 302.
Then, Fig. 4 A and Fig. 4 B represent the synoptic diagram of the 6th and the 7th embodiment of the light-emitting diode component with direct type light guide plate disclosed in this invention.At first, see also Fig. 4 A, backlight module 10 with direct type light guide plate comprises printed circuit board (PCB) 20, a plurality of light emitting diode package assembly 402, and has a light guide plate 30 of first surface 301 and second surface 302, wherein a plurality of light emitting diode package assemblies 402 are arranged on the printed circuit board (PCB) 20 with array way, wherein a plurality of light emitting diode package assemblies 402 also can be a plurality of light-emitting diode chip for backlight unit, or single light-emitting diode chip for backlight unit.In addition, the first surface 301 of light guide plate 30 has the light source incident structure 32 that is made of a plurality of grooves 321, second surface 302 is a uneven surface 362, the shape of this uneven surface 362 can be bowl-shape, inverted U or the curved surface with any curvature, and the curvature of the curvature of wherein a plurality of grooves 321 and the second surface 302 with uneven surface 362 can be identical or different.
Therefore, in the present embodiment, when light emitting diode 402 provides light source, these light sources can be by these uneven surfaces 362 with different angles, be gone into to inject in the light guide plate 30 by uneven surface 362, by the second surface 302 of light guide plate 30, cooperate a plurality of grooves 321 in light guide plate 30, to produce total reflection then, make these light sources even mixed light in light guide plate 30, then, launch via the second surface that is positioned at light guide plate 30 (exiting surface) 302 again.
So, can be according to the above, the advantage that can know present embodiment is, can be by the light source that light emitting diode package assembly 402 is provided by the uneven surface 362 and the light source incident structure 32 of light guide plate 30, in light guide plate 30, produce total reflection, make in light guide plate 30, to mix, and produce light source, and then launch via the second surface (exiting surface) 302 of light guide plate 30 with high brightness and homogeneous energy.
Then, see also Fig. 4 B, represent the synoptic diagram of another preferred embodiment of light-emitting diode component disclosed in this invention.Employed component Name, material and function are all identical with the disclosed structure of Fig. 4 A in Fig. 4 B, therefore repeat no more.At this, be noted that, the difference of Fig. 4 B and Fig. 4 A is, for all light sources that allow light emitting diode package assembly 402 be provided can produce total reflection in light guide plate 30, therefore in the present embodiment, the inboard of a plurality of grooves 321 in light guide plate 30 (part that concaves) plates one deck reflective coating 50, and this reflective coating 50 can be dielectric material or metal.
Similarly, when light emitting diode package assembly 402 provides light source, and when entering light guide plate 30 via the incidence surface 301 of light guide plate 30, by a plurality of grooves 321 at the second surface 302 of light guide plate 30, allow light source produce total reflection, and produce the illuminating source of even light mixing, also simultaneously by the reflective coating 50 that is positioned on a plurality of groove 32 inclined surfaces, all light sources are produced reflection/refraction, and then launch via the second surface (exiting surface) 302 of light guide plate 30.
Therefore, according to the above, the backlight module with direct type light guide plate 10 of disclosed each embodiment of the present invention, can be widely used in light fixture equipment (not shown in the diagram), it is the backlight module that will have direct type light guide plate 30, be arranged in the light fixture, because the light source incident structure 32 of direct type light guide plate 30, can allow light emitting diode 401 or 402 light sources of being launched import light guide plate 30 in the total reflection mode, and generation total reflection light source, the last light source of launching via the exiting surface of light guide plate 30 is to have high brightness and energy even, therefore, more goes for having in the light fixture of good luminous efficient.
The above is the preferred embodiments of the present invention only, is not in order to limit scope of the present invention; All other do not break away from the equivalence of being finished under the spirit disclosed in this invention and changes or modification, all should comprise within the scope of the invention.
Claims (22)
1. backlight module with direct type light guide plate comprises:
One light guide plate has a first surface and a second surface, and this first surface has a light source incident structure; And
One illuminating source is positioned at this second surface below of this light guide plate, and each this illuminating source is to a lower surface that should light source incident structure,
Wherein this light source incident structure imports this light guide plate with this illuminating source in the total reflection mode.
2. backlight module according to claim 1 is characterized in that, this light source incident structure is constituted by a plurality of grooves.
3. backlight module according to claim 2 is characterized in that, an inclined surface of those grooves also comprises a reflective coating.
4. backlight module according to claim 1 is characterized in that, this first surface is a flat surfaces.
5. backlight module according to claim 1 is characterized in that, this first surface is the surface with any curvature.
6. backlight module according to claim 1 is characterized in that, this illuminating source is a light emitting diode.
7. backlight module with direct type light guide plate comprises:
One light guide plate has an incidence surface and an exiting surface, and this exiting surface has a light source incident structure; And
A plurality of light-emitting diode components are arranged on below this incidence surface of this light guide plate, in order to a light source to be provided, this light source imports in this light guide plate via this incidence surface, make this light source by this light source incident structure, in this light guide plate, produce total reflection, and launch this light source by this exiting surface.
8. backlight module according to claim 7 is characterized in that, this light source incident structure is made of a plurality of grooves.
9. backlight module according to claim 8 is characterized in that, an inclined surface of those grooves has a reflective coating.
10. backlight module according to claim 7 is characterized in that, each those light emitting diode is to a lower surface that should light source incident structure.
11. backlight module according to claim 7 is characterized in that, this incidence surface is a flat surfaces.
12. backlight module according to claim 7 is characterized in that, this incidence surface is the surface with any curvature.
13. a light guide plate comprises:
One first surface; And
One second surface, this second surface have a light source incident structure, borrow this light source incident structure a light source that imports this light guide plate can be produced total reflection.
14. light guide plate according to claim 13 is characterized in that, this first surface can be a flat surfaces.
15. light guide plate according to claim 13 is characterized in that, this first surface can be a uneven surface.
16. light guide plate according to claim 15 is characterized in that, this uneven surface can be bowl-shape, U type or the surface with curvature.
17. light guide plate according to claim 13 is characterized in that, this light source incident structure comprises a plurality of grooves.
18. light guide plate according to claim 17 is characterized in that, comprises that also a reflective coating is positioned at an inclined surface of those grooves.
19. light guide plate according to claim 13 is characterized in that, comprises that also a reflective coating is positioned at this inclined surface of this light source incident structure.
20. light guide plate according to claim 13 is characterized in that, comprises that also a plurality of sites, a plurality of lenticule or a plurality of V cutting type structure are arranged on this light guide plate, to change the refraction angle of this light source, this light source is penetrated by this second surface.
21. a light fixture is characterized in that, comprises light guide plate according to claim 13.
22. a light fixture is characterized in that, comprises according to claim 1 or 7 described backlight modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101592134A CN101149523A (en) | 2006-09-22 | 2006-09-22 | Backlight module and lamp possessing direct type light guiding board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101592134A CN101149523A (en) | 2006-09-22 | 2006-09-22 | Backlight module and lamp possessing direct type light guiding board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101149523A true CN101149523A (en) | 2008-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101592134A Pending CN101149523A (en) | 2006-09-22 | 2006-09-22 | Backlight module and lamp possessing direct type light guiding board |
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| Country | Link |
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| CN (1) | CN101149523A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335246A (en) * | 2010-11-04 | 2013-10-02 | 友达光电股份有限公司 | Light source and backlight module with same |
| CN105759336A (en) * | 2015-01-05 | 2016-07-13 | 颖台科技股份有限公司 | Direct type light guide structure, direct type light guide plate and direct type backlight module |
| CN109491008A (en) * | 2019-01-05 | 2019-03-19 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
| CN110850637A (en) * | 2019-11-29 | 2020-02-28 | 维沃移动通信有限公司 | Backlight module and electronic equipment |
| CN111722433A (en) * | 2019-03-22 | 2020-09-29 | 中强光电股份有限公司 | Light source module and display device |
| CN111722435A (en) * | 2019-03-20 | 2020-09-29 | 喜星电子株式会社 | Backlight device for display |
| CN111856814A (en) * | 2019-04-30 | 2020-10-30 | 喜星电子株式会社 | Diffusion plate with optical path control function and backlight device |
| WO2020237789A1 (en) * | 2019-05-28 | 2020-12-03 | 惠州市华星光电技术有限公司 | Backlight structure and display panel |
-
2006
- 2006-09-22 CN CNA2006101592134A patent/CN101149523A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335246A (en) * | 2010-11-04 | 2013-10-02 | 友达光电股份有限公司 | Light source and backlight module with same |
| CN103335246B (en) * | 2010-11-04 | 2015-07-15 | 友达光电股份有限公司 | Light source and backlight module with same |
| CN105759336A (en) * | 2015-01-05 | 2016-07-13 | 颖台科技股份有限公司 | Direct type light guide structure, direct type light guide plate and direct type backlight module |
| CN105759336B (en) * | 2015-01-05 | 2018-12-04 | 颖台科技股份有限公司 | Direct type light guide structure, direct type light guide plate and direct type backlight module |
| CN109491008A (en) * | 2019-01-05 | 2019-03-19 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
| CN111722435A (en) * | 2019-03-20 | 2020-09-29 | 喜星电子株式会社 | Backlight device for display |
| CN111722433A (en) * | 2019-03-22 | 2020-09-29 | 中强光电股份有限公司 | Light source module and display device |
| CN111856814A (en) * | 2019-04-30 | 2020-10-30 | 喜星电子株式会社 | Diffusion plate with optical path control function and backlight device |
| WO2020237789A1 (en) * | 2019-05-28 | 2020-12-03 | 惠州市华星光电技术有限公司 | Backlight structure and display panel |
| CN110850637A (en) * | 2019-11-29 | 2020-02-28 | 维沃移动通信有限公司 | Backlight module and electronic equipment |
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