CN101749645A - The diffuser plate of tool asterism shape diffusion structure and use its backlight module - Google Patents
The diffuser plate of tool asterism shape diffusion structure and use its backlight module Download PDFInfo
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- CN101749645A CN101749645A CN201010002819A CN201010002819A CN101749645A CN 101749645 A CN101749645 A CN 101749645A CN 201010002819 A CN201010002819 A CN 201010002819A CN 201010002819 A CN201010002819 A CN 201010002819A CN 101749645 A CN101749645 A CN 101749645A
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Abstract
The invention discloses a kind of diffuser plate for the backlight module use.Diffuser plate comprises substrate, a plurality of circular diffusion structure and at least one asterism shape diffusion structure.A plurality of circular diffusion structures are formed at the one side of substrate in the matrix distribution mode, each circular diffusion structure comprises a plurality of firsts reflector element, first's reflector element is arranged on the substrate in the mode of rounded distribution, and the outer arc of adjacent circular diffusion structure is tangent and surround the asterism shape zone jointly.At least one asterism shape diffusion structure comprises a plurality of second portion reflector elements, and the second portion reflector element is formed at the one side of substrate, and is asterism shape and is distributed in the asterism shape zone.
Description
Technical field
The invention relates to a kind of diffuser plate; Particularly, the invention relates to the diffuser plate that a kind of liquid crystal display backlight module uses.
Background technology
Liquid crystal indicator (Liquid Crystal Display) has become the main flow of all kinds of display unit in recent years.The for example TV of family expenses, PC, kneetop computer, monitor, mobile phone and digital still camera etc. are the product of a large amount of use liquid crystal indicators.The backlight module (Backlight Module) that wherein is applied to liquid crystal indicator is used to supply the light source that liquid crystal has enough brightness and is evenly distributed, so that liquid crystal indicator can normal show image.
As shown in Figure 1, known direct type backlight module 90 comprises light source module 200 and optical diaphragm group 80.Wherein, optical diaphragm group 80 comprises first diffuser plate 81 and second diffuser plate 82, belongs to two type structures, and is respectively arranged with the printing micro-structural of single face on first diffuser plate 81 and second diffuser plate 82.On the other hand, (Light Emitting Diodes LED) because volume is little, power consumption is few, therefore becomes one of light source that comprises the liquid crystal display backlight module use to light emitting diode.Yet for the direct type backlight module that uses two type structures, if use light emitting diode, even cooperate two type structures still to be easy to generate the uneven phenomenon of bright dipping as light source.Simultaneously, in order to keep certain uniformity, essential two type structures or the more blooming piece of using causes backlight module thickness and cost to increase.In addition, the light emitting diode of direct type backlight module employed number in display unit such as TV often do not descend hundreds of, so the price of light emitting diode has often accounted for the quite high cost of direct type backlight module.
Summary of the invention
Main purpose of the present invention is to provide a kind of diffuser plate, uses for backlight module, can improve the outgoing light homogeneity of backlight module.
Another purpose of the present invention is to provide a kind of diffuser plate, uses for backlight module, can reduce the manufacturing cost of backlight module.
Another object of the present invention is to provide a kind of backlight module, have preferable outgoing light homogeneity.
Another object of the present invention is to provide a kind of backlight module, have lower manufacturing cost.
Diffuser plate of the present invention comprises substrate, a plurality of circular diffusion structure and at least one asterism shape diffusion structure.A plurality of circular diffusion structures are formed at the one side of substrate in the matrix distribution mode, each circular diffusion structure comprises a plurality of firsts reflector element, first's reflector element is arranged on the substrate in the mode of rounded distribution, and the outer arc of adjacent circular diffusion structure is tangent and surround the asterism shape zone jointly.At least one asterism shape diffusion structure comprises a plurality of second portion reflector elements, and the second portion reflector element is formed at the one side of substrate, and is asterism shape and is distributed in the asterism shape zone.
Substrate has the border, and the adjacent circular diffusion structure and the border that are provided with along the border surround the asterism shape zone jointly.A plurality of firsts reflector element of each circular diffusion structure is many concentric circles lines outside the center of circle of circular diffusion structure, and is that the center outwards is scattered in circle with the center of circle of circular diffusion structure.A plurality of firsts reflector element of each circular diffusion structure forms the filled circles pattern in the circle centre position of circular diffusion structure.
Be many concentric circles lines outside the circle centre position of a plurality of firsts reflector element of each circular diffusion structure and the center of circle.The live width of concentric circles line increases along with the distance with the center of circle of circular diffusion structure and successively decreases.The spacing of concentric circles line is along with the distance with the center of circle of circular diffusion structure increases and increases progressively.Each concentric circles line is fallen to forming by multistage, and paragraph is gapped to each other.
The second portion reflector element is many concentric asterism shape lines, and wherein each asterism shape line is made up of polygon line, and the sideline is the concentric camber line of adjacent circular diffusion structure.The live width of asterism shape line is along with the distance with the center of asterism shape diffusion structure increases and increases progressively.The spacing of asterism shape line increases along with the distance with the center of asterism shape diffusion structure and successively decreases.
First's reflector element is the filled circles pattern, and is that the center outwards is scattered in many concentric circles lines with the center of circle of circular diffusion structure.The diameter of first's reflector element increases along with the distance with the center of circle of circular diffusion structure and successively decreases.The spacing of concentric circles line is along with the distance with the center of circle of circular diffusion structure increases and increases progressively.
The second portion reflector element forms dot pattern, and is scattered in many concentric asterism shape lines.Each asterism shape line is made up of polygon line, and the sideline is the concentric camber line of adjacent circular diffusion structure.The diameter of second portion reflector element is along with the distance with the center of this asterism shape diffusion structure increases and increases progressively.The spacing of asterism shape line increases along with the distance with the center of asterism shape diffusion structure and successively decreases.
Diffuser plate further has the offside diffusion unit, is arranged at the another side of substrate, and with circular diffusion unit and asterism shape diffusion unit mirror image each other.Diffuser plate further has the offside diffusion unit, is covered in the another side of substrate.Circular diffusion structure is formed at the square matrices distribution mode on the one side of substrate, and the outer arc of four adjacent circular diffusion structures is tangent and surround the asterism shape zone jointly.Circular diffusion structure is formed at the triangular matrix distribution mode on the one side of substrate, and the outer arc of three adjacent circular diffusion structures is tangent and surround the asterism shape zone jointly.Backlight module of the present invention comprises light source module and aforesaid diffuser plate.Light source module has a plurality of light source cells.
Description of drawings
Fig. 1 is the known technology schematic diagram;
Fig. 2 A is a backlight module exploded perspective view of the present invention;
Fig. 2 B is a schematic side view of the present invention;
Fig. 3 A1 and Fig. 3 A2 are preferred embodiment schematic diagram of the present invention;
Fig. 3 B to Fig. 5 B is the different embodiments of the invention schematic diagram;
Fig. 6 A and Fig. 6 B have the preferred embodiment schematic diagram of offside diffusion unit for the present invention.
The main element symbol description:
100 substrates, 200 light source modules
210 light source cells, 300 circular diffusion structures
400 part reflector elements, 410 first's reflector elements
420 second portion reflector elements, 421 concentric camber lines
422 concentric camber line 423 concentric camber lines
424 concentric camber line 480 offside diffusion units
500 asterism shape diffusion structures, 600 light
710 asterism shape zones, 700 asterism shapes zone
800 diffuser plates, 900 backlight modules
The specific embodiment
Backlight module exploded perspective view shown in Fig. 2 A, in preferred embodiment, diffuser plate 800 of the present invention can use for backlight module 900.Particularly, backlight module 900 comprises light source module 200 and diffuser plate 800.Light source module 200 has a plurality of light source cells 210, and wherein, light source cell 210 comprises light emitting diode.Backlight module schematic side view shown in Fig. 2 B, diffuser plate 800 of the present invention is made of substrate 100 and the part reflector element 400 that is distributed in substrate 100 surfaces, though among Fig. 2 B only illustration partly reflector element 400 be arranged at the lower surface of substrate 100, but be not limited thereto, reflector element 400 also can be arranged at the upper surface of substrate 100.When the light 600 that sends when light source cell 210 touches partial reflection unit 400, part refraction and partial reflection can take place, can produce diffusion effect by this, improve the uniformity of backlight module.On the other hand, use two type structures compared to tradition, diffuser plate 800 of the present invention uses the veneer framework, just part reflector element 400 is formed at least one surface of substrate 100, can reduce module thickness and cost.Wherein, the reflectivity of diffuser plate 800 can be between 25% to 100%, preferable between 25% to 80%, brightness increase along with light source cell 210, the reflectivity of diffuser plate 800 can design highly more, wherein, the reflectivity of diffuser plate 800 can or select suitable reflector element 400 materials etc. to decide by configuration density/covering ratio (specific as follows stating) of adjusting reflector element 400.The manufacturing process that forms partial reflection unit 400 is preferable but be not defined as screen painting, can also be sputter (sputter) or jet printing etc.
Below further specify the structure of diffuser plate 800 of the present invention.Preferred embodiment shown in Fig. 3 A1 and Fig. 3 A2, diffuser plate 800 of the present invention comprise substrate 100, a plurality of circular diffusion structure 300 and at least one asterism shape diffusion structure 500.Substrate 100 can be clear sheet or comprises the sheet material of diffusion particle.A plurality of circular diffusion structures 300 are formed at the one side of substrate 100 in the matrix distribution mode.In preferred embodiment, circular diffusion structure 300 is formed on the one side of substrate 100 with the square matrices distribution mode shown in Fig. 3 A1 and Fig. 3 A2, and the outer arc of four adjacent circular diffusion structures 300 is tangent or crossing and surround the asterism shape zones 700 of four awns jointly.Yet in different embodiment, circular diffusion structure 300 can the triangular matrix distribution mode be formed on the one side of substrate 100, and the outer arc of three adjacent circular diffusion structures 300 is tangent and surround the asterism shape zones of three awns jointly.
Each circular diffusion structure comprises a plurality of firsts reflector element 410, first's reflector element 410 is arranged on the substrate 100 in the mode that rounded or circular concentric distributes, and the outer arc of adjacent circular diffusion structure 300 is tangent and surround asterism shape zone 700 jointly.At least one asterism shape diffusion structure 500 comprises a plurality of second portion reflector elements 420, and second portion reflector element 420 is formed at the one side of substrate 100, and is asterism shape and is distributed in the asterism shape zone 700.Wherein, first's reflector element 410 and the partial reflection unit 400 shown in the second portion reflector element 420 common pie graph 2B.The thickness of partial reflection unit 400 is preferable between 1 nanometer to 1 millimeter.Wherein, when thickness range was micron grade, material was preferably brium carbonate (BaCO
3) or barium sulfate (BaSO
4); When thickness range was nano-scale, material was preferably tantalum pentoxide (Ta2O
5), silica (SiO
2) wait the diaphragm type material.
Shown in Fig. 3 A1 and Fig. 3 A2, second portion reflector element 420 is many concentric asterism shape lines, and wherein each asterism shape line is made up of polygon line, and the sideline is the concentric camber line of adjacent circular diffusion structure 300.Particularly, the asterism shape line of second portion reflector element 420 outermost is by constituting with four adjacent circular diffusion structures, 300 immediate concentric camber lines 421,422,423 and 424 respectively, wherein, camber line 421 is concentric with upper left circular diffusion structure 300 with one heart, camber line 422 is concentric with upper right circular diffusion structure 300 with one heart, camber line 423 is concentric with the circular diffusion structure 300 of bottom right with one heart, and camber line 424 is concentric with the circular diffusion structure 300 of lower-left with one heart.By that analogy, second portion reflector element 420 other asterism shape lines are formed in a similar manner.The center of circle of each circular diffusion structure 300 is preferable corresponding with a light source cell 210 (asking for an interview Fig. 2 B) respectively.Particularly, the preferable top that is arranged at a light source cell 210 respectively, the center of circle of each circular diffusion structure 300.
Shown in Fig. 3 A1 and Fig. 3 A2, see it by different way, on substrate 100 surfaces is the center of circle with a plurality of points with matrix distribution respectively, by the center of circle partial reflection unit outwards is set in the mode of rounded distribution, and the partial reflection unit can intersect and cross asterism shape zone 700.The extra-regional partial reflection of asterism shape unit is the first part reflector element 410, and the partial reflection unit in the asterism shape zone is the second part reflector element 420.On the other hand, substrate 100 has the border, and the adjacent circular diffusion structure 300 that is provided with along the border can surround asterism shape zone 710 jointly with the border.
Shown in Fig. 3 A1 and Fig. 3 A2, in preferred embodiment, a plurality of firsts reflector element 410 of each circular diffusion structure 300 is many concentric circles lines outside the center of circle of circular diffusion structure 300, and is that the center outwards is scattered in circle with the center of circle of circular diffusion structure 300.Yet in the different embodiment shown in Fig. 3 B, a plurality of firsts reflector element 410 circle centre positions in circular diffusion structure 300 of each circular diffusion structure 300 form the filled circles pattern.Particularly, in the preferred embodiment shown in Fig. 3 A1 and Fig. 3 A2, the center of circle of circular diffusion structure 300 is the circle diagram case, be the annular of hollow, light source cell 210 (asking for an interview Fig. 2 B) sender to towards directly over light, have part can be without 410 partial reflections of first's reflector element directly by diffuser plate 800.In the different embodiment shown in Fig. 3 B, the center of circle of circular diffusion structure 300 is the filled circles pattern, light source cell 210 senders to towards directly over light, all can be during by diffuser plate 800 through first's reflector element 410 parts.In other words, can utilize circular diffusion structure 300 the center of circle pattern covers ratio control light source cell 210 senders to towards directly over light without 410 partial reflections of first's reflector element the direct amount by diffuser plate 800.
In Fig. 3 A1 and Fig. 3 A2 and Fig. 3 B illustrated embodiment, be many concentric circles lines outside the center of circle of a plurality of firsts reflector element 410 of each circular diffusion structure 300, and the live width of concentric circles line increase along with the distance with the center of circle of circular diffusion structure 300 and successively decrease.In other words, the covering ratio of circular diffusion structure 300 can be controlled by the live width of the concentric circles line of adjusting first's reflector element 410.Wherein, as second partly the live width of the asterism shape line of reflector element 420 also increase and successively decrease along with distance with the center of circle of adjacent circular diffusion structure 300, also along with the distance with the center of asterism shape diffusion structure increases and increases progressively.
In different embodiment, the covering ratio of circular diffusion structure 300 also can be controlled by the spacing of the concentric circles line of adjusting first's reflector element 410.The also fixing live width of the concentric circles line of first's reflector element 410 is then adjusted the spacing of the concentric circles line of first's reflector element 410, and spacing is more little, and the coverage rate of this unit area first reflector element 410 is high more.Among the different embodiment shown in Fig. 3 C, the spacing of concentric circles line is along with the distance with the center of circle of circular diffusion structure 300 increases and increases progressively.Wherein, as second partly the spacing of the asterism shape line of reflector element 420 also along with the distance with the center of circle of adjacent circular diffusion structure 300 increases and increases progressively, that is along with the distance with the center of asterism shape diffusion structure increases and successively decreases.
In the embodiment shown in Fig. 3 A1 and Fig. 3 A2 to Fig. 3 C, each concentric circles line of circular diffusion structure 300 is continuous solid line.Yet in different embodiment, concentric circles line viewable design demand is made of paragraph or point.In the embodiment shown in fig. 4, each concentric circles line is fallen to forming by multistage, and paragraph is gapped to each other.In the embodiment shown in Fig. 5 A and Fig. 5 B, first's reflector element 410 is the filled circles pattern, and is that the center outwards is scattered in many concentric circles lines with the center of circle of circular diffusion structure 300.In other words, in the embodiment shown in Fig. 5 A and Fig. 5 B, first's reflector element 410 is the filled circles that are scattered in the concentric circles line.Corresponding, second portion reflector element 420 also forms dot pattern, and is scattered in many concentric asterism shape lines.Wherein, shown in Fig. 5 A, the diameter of first's reflector element 410 can increase along with the distance with the center of circle of circular diffusion structure 300 and successively decrease.The diameter of second portion reflector element 420 increases along with the distance with the center of circle of adjacent circular diffusion structure 300 and successively decreases, that is along with the distance with the center of asterism shape diffusion structure increases and increases progressively.On the other hand, in the embodiment shown in Fig. 5 B, the spacing of concentric circles line is along with the distance with the center of circle of circular diffusion structure 300 increases and increases progressively.The spacing of asterism shape line is along with the distance with the center of circle of adjacent circular diffusion structure 300 increases and increases progressively, that is along with the distance with the center of asterism shape diffusion structure increases and successively decreases.
Shown in Fig. 6 A and Fig. 6 B, in preferred embodiment, diffuser plate 800 further has offside diffusion unit 480, is arranged at the another side of substrate 100, for the partial reflection effect that increases again light 600.Wherein, the reflectivity of diffuser plate 800 can be between 25% to 100%, and preferable between 25% to 80%, along with the brightness increase of light source cell 210, the reflectivity of diffuser plate 800 can be set highly more.The thickness of offside diffusion unit 480 is preferable between 1 nanometer to 1 millimeter.Wherein, when thickness range was micron grade, material was preferably brium carbonate (BaCO
3) or barium sulfate (BaSO
4); When thickness range was nano-scale, material was preferably tantalum pentoxide (Ta2O
5), silica (SiO
2) wait the diaphragm type material.In embodiment as shown in Figure 6A, offside diffusion unit 480 is covered in the another side of substrate 100.In the embodiment shown in Fig. 6 B, be arranged at 480 of offside diffusion units and the circular diffusion unit (asking for an interview Fig. 3 A1 and Fig. 3 A2) of another side of substrate 100 and asterism shape diffusion unit (asking for an interview Fig. 3 A1 and Fig. 3 A2) mirror image each other.Wherein, the partial reflection unit 400 shown in the common pie graph 6B of circular diffusion unit and asterism shape diffusion unit.Shown in Fig. 6 A and Fig. 6 B, the light 600 that light source cell 210 sends advances to partial reflection unit 400 can produce a partial reflection, then produces another time partial reflection when advancing to offside diffusion unit 480.Particularly, repeating part reflection via partial reflection unit 400 and 480 pairs of light 600 of offside diffusion unit, light 600 can have the embodiment than above-mentioned Fig. 2 B to have wider distribution, can more improve outgoing light homogeneity by this, reduce the usage quantity of light source cell 210, further reduce power consumption and manufacturing cost.
Though aforesaid description and accompanying drawing have disclosed preferred embodiment of the present invention, must recognize variously increase, many modifications and replace and may be used in preferred embodiment of the present invention, and can not break away from the spirit and the scope of the principle of the invention that defines as appended claim.The general skill person who is familiar with the technical field of the invention can know from experience, and the present invention can be used in the modification of many forms, structure, layout, ratio, material, element and assembly.Therefore, this paper should be regarded as in order to explanation the present invention in the embodiment that this disclosed, but not in order to restriction the present invention.Scope of the present invention should be defined by the attached claim in back, and contains its legal equivalents, is not limited to previous description.
Claims (24)
1. a diffuser plate uses for a backlight module, it is characterized in that described diffuser plate comprises:
One substrate;
A plurality of circular diffusion structures, be formed at the one side of described substrate in the matrix distribution mode, each circular diffusion structure comprises a plurality of firsts reflector element, described first reflector element is arranged on the described substrate in the mode of rounded distribution, and the outer arc of adjacent described circular diffusion structure is tangent and surround an asterism shape zone jointly; And
At least one asterism shape diffusion structure comprises a plurality of second portion reflector elements, and described second portion reflector element is formed at described of described substrate, and is asterism shape and is distributed in the described asterism shape zone.
2. diffuser plate as claimed in claim 1 is characterized in that described substrate has a border, and the adjacent described circular diffusion structure along described border is provided with surrounds described asterism shape zone jointly with described border.
3. diffuser plate as claimed in claim 1, it is characterized in that, wherein a plurality of firsts reflector element of each circular diffusion structure is many concentric circles lines outside the center of circle of described circular diffusion structure, and is that the center outwards is scattered in circle with the center of circle of described circular diffusion structure.
4. diffuser plate as claimed in claim 3 is characterized in that, wherein a plurality of firsts reflector element of each circular diffusion structure forms the filled circles pattern in the circle centre position of described circular diffusion structure.
5. diffuser plate as claimed in claim 3 is characterized in that, is many concentric circles lines outside the circle centre position of a plurality of firsts reflector element of each circular diffusion structure and the center of circle wherein.
6. diffuser plate as claimed in claim 3 is characterized in that, the live width of wherein said concentric circles line increases along with the distance with the center of circle of described circular diffusion structure and successively decreases.
7. diffuser plate as claimed in claim 3 is characterized in that, the spacing of wherein said concentric circles line is along with the distance with the center of circle of described circular diffusion structure increases and increases progressively.
8. diffuser plate as claimed in claim 3 is characterized in that, wherein each concentric circles line is fallen to forming by multistage, and described paragraph is gapped to each other.
9. diffuser plate as claimed in claim 3, it is characterized in that wherein said second portion reflector element is many concentric asterism shape lines, wherein, each described asterism shape line is made up of polygon line, and described sideline is the concentric camber line of adjacent circular diffusion structure.
10. diffuser plate as claimed in claim 9 is characterized in that, the live width of wherein said asterism shape line is along with the distance with the center of described asterism shape diffusion structure increases and increases progressively.
11. diffuser plate as claimed in claim 9 is characterized in that, the spacing of wherein said asterism shape line increases along with the distance with the center of described asterism shape diffusion structure and successively decreases.
12. diffuser plate as claimed in claim 1 is characterized in that, wherein said first reflector element is the filled circles pattern, and is that the center outwards is scattered in many concentric circles lines with the center of circle of described circular diffusion structure.
13. diffuser plate as claimed in claim 12 is characterized in that, the diameter of wherein said first reflector element increases along with the distance with the center of circle of described circular diffusion structure and successively decreases.
14. diffuser plate as claimed in claim 12 is characterized in that, the spacing of wherein said concentric circles line is along with the distance with the center of circle of described circular diffusion structure increases and increases progressively.
15. diffuser plate as claimed in claim 12, it is characterized in that, wherein said second portion reflector element forms dot pattern, and be scattered in many concentric asterism shape lines, wherein, each described asterism shape line is made up of polygon line, and described sideline is the concentric camber line of adjacent circular diffusion structure.
16. diffuser plate as claimed in claim 15 is characterized in that, the diameter of wherein said second portion reflector element is along with the distance with the center of described asterism shape diffusion structure increases and increases progressively.
17. diffuser plate as claimed in claim 15 is characterized in that, the spacing of wherein said asterism shape line increases along with the distance with the center of described asterism shape diffusion structure and successively decreases.
18. diffuser plate as claimed in claim 1 is characterized in that, described diffuser plate further has an offside diffusion unit, is arranged at the another side of described substrate, and with described circular diffusion unit and described asterism shape diffusion unit mirror image each other.
19. diffuser plate as claimed in claim 1 is characterized in that, described diffuser plate further has an offside diffusion unit, is covered in the another side of described substrate.
20. diffuser plate as claimed in claim 1, it is characterized in that, described circular diffusion structure is formed at the square matrices distribution mode on described of described substrate, and the outer arc of four adjacent described circular diffusion structures is tangent and surround described asterism shape zone jointly.
21. diffuser plate as claimed in claim 1, it is characterized in that, described circular diffusion structure is formed at the triangular matrix distribution mode on described of described substrate, and the outer arc of three adjacent described circular diffusion structures is tangent and surround described asterism shape zone jointly.
22. diffuser plate as claimed in claim 1 is characterized in that, the reflectivity of described diffuser plate is between 25% to 100%.
23. diffuser plate as claimed in claim 22 is characterized in that, the reflectivity of described diffuser plate is between 25% to 80%.
24. a backlight module is characterized in that, described backlight module comprises:
One light source module has a plurality of light source cells; And
One diffuser plate comprises:
One substrate is arranged at a side of described light source module;
A plurality of circular diffusion structures, be formed at the one side of described substrate in the matrix distribution mode, and the center of circle of each circular diffusion structure lay respectively at described light source cell one of them directly over, each circular diffusion structure comprises a plurality of firsts reflector element, described first reflector element is arranged on the described substrate in the mode of rounded distribution, and the outer arc of adjacent described circular diffusion structure is tangent and surround an asterism shape zone jointly; And
At least one asterism shape diffusion structure comprises a plurality of second portion reflector elements, and described second portion reflector element is formed at described of described substrate, and is asterism shape and is distributed in the described asterism shape zone.
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| CN2010100028193A CN101749645B (en) | 2010-01-18 | 2010-01-18 | Diffusion plate with asterism-shaped diffusion structure and backlight module using diffusion plate |
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|---|---|---|---|
| CN2010100028193A CN101749645B (en) | 2010-01-18 | 2010-01-18 | Diffusion plate with asterism-shaped diffusion structure and backlight module using diffusion plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234172A (en) * | 2013-04-16 | 2013-08-07 | 冠捷显示科技（厦门）有限公司 | Diffusion plate structure and application thereof in backlight module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234172A (en) * | 2013-04-16 | 2013-08-07 | 冠捷显示科技（厦门）有限公司 | Diffusion plate structure and application thereof in backlight module |
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