CN101067670B - Light conducting plate with irregular micro structure and producing method thereof - Google Patents
Light conducting plate with irregular micro structure and producing method thereof Download PDFInfo
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- CN101067670B CN101067670B CN2007101286542A CN200710128654A CN101067670B CN 101067670 B CN101067670 B CN 101067670B CN 2007101286542 A CN2007101286542 A CN 2007101286542A CN 200710128654 A CN200710128654 A CN 200710128654A CN 101067670 B CN101067670 B CN 101067670B
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- light guide
- guide plate
- burr
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Abstract
The invention supplies a light guiding board manufacturing method. It includes board body and many burrs. The former has the first board face and light entering end. The latter is set on the first board face along the light entering end. And each of them has cross section shape paralleled with the cross section of the light entering end. The manufacturing method of the light guiding board includes the following steps: preparing die; forming burrs in the die; using the die to make the light guiding board. Compared with the existing technique, the invention has the advantages of simplifying manufacturing method and production flow, saving cost etc.
Description
Technical field
The present invention relates to a kind of light guide plate, its manufacture method and use the backlight module and the display device of this light guide plate; Particularly, the present invention relates to a kind of backlight module and liquid crystal indicator of light guide plate, its manufacture method and use light guide plate of feed flow crystal device use.
Background technology
Liquid crystal indicator be widely used in as LCD TV, computing machine, mobile phone and personal digital assistant (Personal Digital Assistant, PDA) on.Have the liquid crystal indicator of advantages such as frivolous, power saving, low radiation, because size is done bigger and bigger, product specification is become better and better, market scope is able to continuous expansion.Backlight module is one of important spare part of liquid crystal indicator.Because the liquid crystal material itself in the liquid crystal indicator does not have photism, therefore needing provides light to reach display effect by backlight module.The sized panel applications different along with liquid crystal indicator constantly enlarge, and the backlight module industry trend makes progress for a long time.Particularly the market demand of liquid crystal indicator is significantly grown up in recent years, and for the fluid,matching crystal device reaches apparent requirement on function, the employed backlight module design of liquid crystal indicator also becomes more diversified.
Backlight module mainly comprises light guide plate, light source module, reflecting plate, and one or more blooming piece.In order to reach the backlight module design object that low-power, brightness height, luminosity evenly reach may command visual angle etc., the optical module of backlight module inside as light guide plate and blooming piece, uses many different optical designs to promote the service efficiency of light.The major function of light guide plate is the direction of guiding light, and reaches the even brightness effect.Owing to when the surface of light guide plate is more smooth, easily make light produce scattering phenomenon, and and then to the visual angle of image and the uniformity coefficient generation image of light.Therefore, the bottom of part light guide plate or top are provided with a plurality of microstructures, in order to the scattering phenomenon of attenuating light in the generation of light guide plate surface, and promote whole outgoing light homogeneity and brilliant degree.
Fig. 1 a and Fig. 1 b are depicted as known light guide plate.Light guide plate has plate body 10 and a plurality of microstructure 30, and wherein microstructure 30 is arranged at the upper surface of plate body 10.Shown in Fig. 1 b, each microstructure 30 all has the cross sectional shape of rule, then forms a plurality of V-type grooves between the microstructure 30.This type of microstructure 30 need be processed to form on plate body 10 with meticulousr microscopic carvings carving technology or alternate manner usually, therefore often causes the increase of production cost and the prolongation in man-hour.
Summary of the invention
One of purpose of the present invention is to provide a kind of light guide plate and manufacture method thereof, can simplify production procedure, and saves production cost.
Another object of the present invention is to provide a kind of light guide plate, can reduce the loss of luminous energy in the use, to improve its practicality.
Another object of the present invention is to provide a kind of backlight module and display device of using light guide plate, have lower production cost.
For achieving the above object, the invention provides a kind of light guide plate, this light guide plate comprises plate body and setting many bar shaped burrs thereon.This plate body has first plate face and the light inputting end; This light inputting end is positioned at an end of this first plate face.These many bar shaped burrs are distributed on the first plate face along the direction extension that runs through light inputting end respectively.Each bar shaped burr all has a cross sectional shape being parallel on the square section of light inputting end; On same square section, has scrambling between many bar shaped burrs cross sectional shape separately, and each this bar shaped burr all has at least two sidewalls, each described sidewall is formed by a plurality of walls, described a plurality of wall extends distribution along the bearing of trend of this bar shaped burr respectively, and the described a plurality of walls on the same described sidewall have the different length and the angle of slightly deflect, and described sidewall has the variation of cross section slope and wall face height on the bearing of trend of this bar shaped burr.In other words, these many bar shaped burrs form an irregular random tooth section jointly in this square section.
The present invention also provides a kind of method for manufacturing light guide plate, and this method comprises the following step: at first, prepare mould, and form many bar shaped dimpled grains in mold inside.Each bar shaped dimpled grain all has a cross sectional shape on the square section; On same square section, has scrambling between these many bar shaped dimpled grains cross sectional shape separately.In other words, these many bar shaped dimpled grains form an irregular random tooth section jointly in this square section.Then, use mould to make aforementioned light guide plate with many bar shaped burrs, wherein this bar shaped burr generates corresponding to the bar shaped dimpled grain on the mould, and each this bar shaped burr all has at least two sidewalls, each described sidewall is formed by a plurality of walls, and the described a plurality of walls on the same described sidewall have the different length and the angle of slightly deflect, described a plurality of wall extends distribution along the bearing of trend of this bar shaped burr respectively, and described mould preparation process comprises the variation that makes described sidewall have cross section slope and wall face height on the bearing of trend of this bar shaped dimpled grain.
Compared with prior art, effect of the present invention is that the light guide plate and the manufacture method thereof that are provided can simplify production procedure, save production cost, and can reduce the loss of luminous energy when using, improved its practicality, and the backlight module of the light guide plate that is provided and display device has lower production cost.
Description of drawings
Fig. 1 a and Fig. 1 b are the synoptic diagram of traditional light guide plate;
Fig. 2 is the synoptic diagram of the embodiment of display device of the present invention;
Fig. 3 is the synoptic diagram of the embodiment of light guide plate of the present invention;
Fig. 4 is the synoptic diagram of another embodiment of light guide plate of the present invention;
Fig. 5 a is the vertical view of the embodiment of light guide plate of the present invention;
Fig. 5 b is the vertical view of another embodiment of light guide plate of the present invention;
Fig. 5 c is the vertical view of another embodiment of light guide plate;
Fig. 6 is the synoptic diagram of another embodiment of light guide plate;
Fig. 7 is the cut-open view of the embodiment of light guide plate;
Fig. 8 is the synoptic diagram of the embodiment of bar shaped burr on the light guide plate;
Fig. 9 a is the synoptic diagram of another embodiment of bar shaped burr on the light guide plate;
Fig. 9 b is the synoptic diagram of another embodiment of bar shaped burr on the light guide plate;
Figure 10 a is the vertical view that adds the embodiment of prism structure;
Figure 10 b is the cut-open view of Figure 10 a illustrated embodiment;
Figure 11 is the process flow diagram of the embodiment of method for manufacturing light guide plate;
Figure 12 is the process flow diagram of another embodiment of method for manufacturing light guide plate.
Wherein, description of reference numerals is as follows:
10 plate bodys, 30 microstructures
110 display panels, 111 display surfaces, 130 backlight modules
131 light sources, 300 light guide plate, 133 blooming pieces
135 housings, 300 light guide plate, 310 plate bodys
311 first plate faces, 312 second plate faces, 313 light inputting ends
330 bar shaped burrs, 331 sidewalls, 333 walls
500 prism structures
Embodiment
The invention provides a kind of light guide plate, use the backlight module of this light guide plate, and this manufacturing method of light conducting board.With preferred embodiment, this backlight module is used for display panels.Yet in different embodiment, this backlight module also can need the device of planar light source to use for computer keyboard, mobile phone button, billboard and other.Furthermore, the present invention also comprises the display device of using this light guide plate, comprises the LCDs etc. of LCD monitor, mobile phone and digital camera of LCD TV, personal computer and the laptop computer of family expenses.In a preferred embodiment, display device of the present invention comprises a color liquid crystal display arrangement.Yet in different embodiment, display device of the present invention also can comprise monochromatic liquid crystal indicator.
In the embodiment shown in Figure 2, display device comprises display panel 110 and backlight module 130.Display panel 110 is arranged on the backlight module 130, backlight module 130 with display panel 110 facing surfaces on emit beam, and inject in the display panel 110, with show image on the display surface 111 of display panel 110.In this embodiment, backlight module 130 preferably comprises the light source method to set up of side-light type.As shown in Figure 2, backlight module 130 comprises light source 131, light guide plate 300, blooming piece 133 and housing 135.In this embodiment, light source 131 comprises a LED source; Yet in different embodiment, light source 131 also can be the light supply apparatus of fluorescent tube or other type.Light source 131 is preferably disposed on an end of light guide plate 300, and 133 of blooming pieces are arranged on the light guide plate 300.135 of housings are arranged at light guide plate 300 belows, for each assembly in support or the location backlight module 130.Yet in different embodiment, the quantity of blooming piece 133 and kind can be adjusted according to circumstances, or do not use blooming piece 133.
As shown in Figure 3, light guide plate 300 comprises plate body 310 and setting many bar shaped burrs 330 thereon.Plate body 310 preferably has the first plate face 311 of a rectangle.This first plate face 311 is preferably the upper surface of plate body 310, that is the exiting surface of light guide plate 300; Yet in the embodiment shown in fig. 4, the first plate face 311 also can be the lower surface of plate body 310.Plate body 310 also has light inputting end 313 corresponding to light source 131; Light inputting end 313 is positioned at an end of the first plate face 311.As shown in Figure 3, light inputting end 313 is positioned at the short end of the first plate face 311; Yet in different embodiment, light inputting end 313 also can be positioned at the long limit end of the first plate face 311.In addition, in a preferred embodiment, plate body 310 can (Polystyrene PS) makes by polystyrene.Yet in different embodiment, plate body 310 also can be made by other organic material, for example polycarbonate (Polycarbonate, PC) and poly-cycloolefin macromolecule (Cyclo OlefinPolymer, COP) etc.
As shown in Figure 3, many bar shaped burrs 330 are distributed on the first plate face 311 along the direction extension that runs through light inputting end 313 respectively.In other words, the extension distribution arrangement of each bar shaped burr 330 all has an angle with the end face that points to light inputting end 313 or with the end face of light inputting end 313.Bar shaped burr 330 is the microstructure on the plate body 310, preferably has light transmission.With the preferred embodiment shown in Fig. 5 a, vertical with light inputting end 313 to the bar shaped burr 330 of small part.Yet in different embodiment, shown in Fig. 5 b, the extension distribution arrangement of bar shaped burr 330 is not vertical with light inputting end 313, and the extension distribution arrangement of bar shaped burr 330 preferably has the angles less than 30 degree with the normal direction of light inputting end 313.In the embodiment shown in Fig. 5 c, the part of the bar shaped burr 330 of part then is the radiation curve-like and extends; Other parts then are parallel to each other.
Shown in Fig. 5 a, 5b and Fig. 5 c, the length of each bar shaped burr 330 preferably is different from the length of other bar shaped burr 330, and the length distribution of all bar shaped burrs 330 is not had a systematicness.Therefore the two ends of the bar shaped burr 330 of part all are positioned on the first plate face 311, and an end of the bar shaped burr 330 of part then is positioned at the end of the first plate face 311.Also can there be the two ends of part bar shaped burr 330 to lay respectively at the both ends of the first plate face 311.Yet in different embodiment, also can make the two ends of all bar shaped burrs 330 be positioned at the both ends of the first plate face 311 respectively.In addition, shown in Fig. 5 a and 5b, bar shaped burr 330 preferably is covered with on the first plate face 311; Yet in different embodiment, shown in Fig. 5 c, bar shaped burr 330 also can only be distributed in the part on the first plate face 311.
In embodiment as shown in Figure 6, plate body 310 also comprises the second plate face 312 relative with the first plate face 311.In this embodiment, be equipped with many bar shaped burrs 330 on the first plate face 311 and the second plate face 312.Bar shaped burr 330 on the first plate face 311 and the second plate face 312 must not have symmetry, that is can the symmetry or asymmetric mode be provided with.
As shown in Figure 7, each bar shaped burr 330 all has a cross sectional shape on the square section that is parallel to light inputting end 313; On same square section, has scrambling between many bar shaped burrs 330 cross sectional shape separately.In other words, many bar shaped burrs 330 form an irregular random tooth section jointly in this square section.Because the cross sectional shape of bar shaped burr 330 there is no association to each other, the groove that therefore is formed at 330 of adjacent bar burrs does not also have special cross sectional shape.With the cross sectional shape of single bar shaped burr 330, this cross sectional shape can be triangle, convex polygon, concave polygon or other different shape.In addition, the size of each cross sectional shape is not also had association or a systematicness with the size of other cross sectional shape.
As shown in Figure 7, each bar shaped burr 330 preferably has at least two sidewalls 331, and 331 of each sidewalls are made up of at least one wall 333.When same sidewall 331 comprises two during with upper wall surface 333, as shown in Figure 8, these a plurality of walls 333 extend along the bearing of trend of bar shaped burr 330 and distribute.In addition, the wall 333 on the same sidewall 331 also can have the different length and the angle of slightly deflect, and then causes the variation on the sidewall 331.Wall 333 can be plane, inner sunken face or outer convex surface.Therefore, when observing, except that straight-line segment, also can include non-directional concave or convex curve in each limit of the cross sectional shape of bar shaped burr 330 with the sectional view of Fig. 7.
Except on same square section, not having the systematicness, the height of the sidewall of each bar shaped burr 330 331 itself and cross section slope also can have scrambling on bearing of trend variation.Shown in Fig. 9 a, the height of sidewall 331 promptly has the variation of scrambling at bearing of trend, and therefore also related itself and 330 folded gash depths of adjacent bar burr of making change.The sidewall height of each bar shaped burr 330 is preferably less than 20 microns (μ m).In addition, in the embodiment of Fig. 9 b, the cross section slope of sidewall 331 also changes along bearing of trend, makes whole sidewall 331 produce the similar situation of reversing.
In the embodiment shown in Figure 10 a and Figure 10 b, the top of part bar shaped burr 330 is provided with prism structure 500, or 330 of part bar shaped burrs prism structure 500 is set.This prism structure is a convex surface prism or a concave surface prism.Shown in Figure 10 a and Figure 10 b, prism structure 500 is preferably the structure of a circular arc, and across the top of several bar shaped burrs 330; The bottom of prism structure 500 is also inserted between the groove of 330 of part bar shaped burrs.Yet in different embodiment, prism structure 500 also can have the structure of other shape, or is the arc-shaped structure of concave surface.With preferred embodiment, prism structure 500 can be formed by injection, printing, attaching, etching, little shadow, plated film or alternate manner.In addition, preferably (Polymethyl methacrylate PMMA) makes prism structure 500 by polymethylmethacrylate; Yet in different embodiment, prism structure 500 also can be made by other acrylic resin.
Figure 11 is the process flow diagram of the embodiment of method for manufacturing light guide plate of the present invention.Step 1110 comprises the preparation mould, and forms many bar shaped dimpled grains in mold inside.With preferred embodiment, the bar shaped dimpled grain is unidirectional or grind many bar shaped dimpled grains toward being overlying on mold inside along a preset direction with sand milling material or steel brush.Yet in different embodiment, can also on mold inside, grind many bar shaped dimpled grains along a preset direction by Wheel grinder.In this embodiment, can make the bar shaped dimpled grain of generation produce irregular cross sectional shape, length, the degree of depth and other variation with this type of polishing processing mode.
With preferred embodiment, the length of each bar shaped dimpled grain preferably is different from the length of other bar shaped dimpled grain, and the length distribution of all bar shaped dimpled grains is not had a systematicness.Each bar shaped dimpled grain all has a cross sectional shape on the square section; On same square section, has scrambling between many bar shaped dimpled grains cross sectional shape separately.In other words, many bar shaped dimpled grains form an irregular random tooth section jointly in this square section.Each bar shaped dimpled grain preferably has at least two sidewalls, and each sidewall then is made up of at least one wall.Wall can be plane, inner sunken face or outer convex surface; The combination that therefore, can have plane and concave surface on the same sidewall simultaneously.In addition, except not having on same square section the systematicness, the height of the sidewall of each bar shaped dimpled grain itself and cross section slope also can have the variation of scrambling on bearing of trend.
As shown in figure 11, step 1130 comprises uses mould to make aforementioned light guide plate with many bar shaped burrs, wherein generates the bar shaped burr corresponding to the bar shaped dimpled grain on the mould.In a preferred embodiment, this step directly forms light guide plate with injection molding method or alternate manner in mould; Yet in different embodiment, this step can also transfer printing or the alternate manner surface that processes a plate body have the light guide plate of bar shaped burr with formation.
Figure 12 shows that the process flow diagram of another embodiment of method for manufacturing light guide plate.In this embodiment, this method for manufacturing light guide plate further comprises step 1210, on part bar shaped burr or form prism structure therebetween.With preferred embodiment, prism structure 500 can be formed by injection, printing, attaching, etching, little shadow, plated film or alternate manner.In addition, preferably (Polymethyl methacrylate PMMA) makes prism structure 500 by polymethylmethacrylate; Yet in different embodiment, prism structure 500 also can be made by other acrylic resin.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that disclosed embodiment does not limit the scope of the invention.On the contrary, being contained in modification in the spirit of claim and the scope and equalization is provided with and all is contained in the scope of the present invention.
Claims (18)
1. light guide plate comprises:
One plate body, it has one first a plate face and a light inputting end, and this light inputting end is positioned at an end of this first plate face; And
Many bar shaped burrs are distributed on this first plate face along the direction extension that runs through this light inputting end respectively; Wherein each this bar shaped burr has a cross sectional shape being parallel on the square section of this light inputting end, these a plurality of cross sectional shapes have scrambling each other, and each this bar shaped burr all has at least two sidewalls, each described sidewall is formed by a plurality of walls, described a plurality of wall extends distribution along the bearing of trend of this bar shaped burr respectively, and the described a plurality of walls on the same described sidewall have the different length and the angle of slightly deflect, and described sidewall has the variation of cross section slope and wall face height on the bearing of trend of this bar shaped burr.
2. light guide plate as claimed in claim 1, wherein this plate body comprises the one second plate face relative with this first plate face, and these many bar shaped burrs are distributed on this second plate face along the direction that runs through this light inputting end.
3. light guide plate as claimed in claim 1 wherein is parallel to each other or is the radiation curve-like to the part of this many bar shapeds burr of small part and extends.
4. light guide plate as claimed in claim 1, wherein the normal direction angle of the bearing of trend of these many bar shaped burrs and this light inputting end is less than 30 degree.
5. light guide plate as claimed in claim 4, wherein these many bar shaped burrs are perpendicular to this light inputting end.
6. light guide plate as claimed in claim 1, wherein said wall are plane or curved surface.
7. light guide plate as claimed in claim 1, wherein the length of each this bar shaped burr is different from the length of other this bar shaped burr, and the length of these a plurality of bar shaped burrs is had scrambling to each other.
8. light guide plate as claimed in claim 1, wherein the two ends of this bar shaped burr of part all are positioned on this first plate face.
9. light guide plate as claimed in claim 1, wherein the top to this bar shaped burr of small part is provided with a prism structure.
10. light guide plate as claimed in claim 9, wherein this prism structure is a convex surface prism or a concave surface prism.
11. light guide plate as claimed in claim 1 wherein is provided with a prism structure between this bar shaped burr of small part.
12. light guide plate as claimed in claim 1, wherein the height of each this bar shaped burr is less than 20 microns.
13. light guide plate as claimed in claim 1, wherein these many bar shaped burrs are distributed in the part of the whole of this first plate face or this first plate face.
14. a light guide plate comprises:
One plate body has one first a plate face and a light inputting end, and this light inputting end is positioned at an end of this first plate face; And
Many bar shaped burrs are distributed on this first plate face along the direction extension that runs through this light inputting end respectively; Wherein, these many bar shaped burrs are the common irregular random tooth section that forms on the square section of parallel this light inputting end, and each this bar shaped burr all has at least two sidewalls, each described sidewall is formed by a plurality of walls, described a plurality of wall extends distribution along the bearing of trend of this bar shaped burr respectively, and the described a plurality of walls on the same described sidewall have the different length and the angle of slightly deflect, and described sidewall has the variation of cross section slope and wall face height on the bearing of trend of this bar shaped burr.
15. a method for manufacturing light guide plate comprises the following step:
Prepare a mould, form a plurality of strip dimpled grains at this mold inside; Wherein, each this bar shaped dimpled grain has a cross sectional shape on a square section, and these a plurality of cross sectional shapes have scrambling each other; And
Use this mould to make a light guide plate, so that this light guide plate comprises:
One plate body, it has one first a plate face and a light inputting end, and this light inputting end is positioned at an end of this plate face; And
Many bar shaped burrs, it is corresponding to these a plurality of bar shaped dimpled grains, and is parallel to each other and extends along the direction that runs through this light inputting end and be distributed on this first plate face; Wherein each this bar shaped burr has a cross sectional shape on the square section of parallel this light inputting end, these a plurality of cross sectional shapes have scrambling each other, and each this bar shaped burr all has at least two sidewalls, each described sidewall is formed by a plurality of walls, described a plurality of wall extends distribution along the bearing of trend of this bar shaped burr respectively, and the described a plurality of walls on the same described sidewall have the different length and the angle of slightly deflect, and described mould preparation process comprises the variation that makes described sidewall have cross section slope and wall face height on the bearing of trend of this bar shaped dimpled grain.
16. manufacture method as claimed in claim 15 further is included on this bar shaped burr of part and forms a prism structure.
17. manufacture method as claimed in claim 15 further is included between this bar shaped burr of part and forms a prism structure.
18. manufacture method as claimed in claim 15, wherein the mould preparation process comprises that the length that makes each this bar shaped dimpled grain is different from the length of other this strip dimpled grain, and makes the length of these a plurality of strip dimpled grains have scrambling to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101286542A CN101067670B (en) | 2007-07-09 | 2007-07-09 | Light conducting plate with irregular micro structure and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101286542A CN101067670B (en) | 2007-07-09 | 2007-07-09 | Light conducting plate with irregular micro structure and producing method thereof |
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| Publication Number | Publication Date |
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| CN101067670A CN101067670A (en) | 2007-11-07 |
| CN101067670B true CN101067670B (en) | 2010-06-16 |
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| CN2007101286542A Expired - Fee Related CN101067670B (en) | 2007-07-09 | 2007-07-09 | Light conducting plate with irregular micro structure and producing method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI370273B (en) | 2008-10-17 | 2012-08-11 | Coretronic Corp | Light guide plate |
| CN101738672B (en) * | 2008-11-20 | 2012-09-19 | 中强光电股份有限公司 | Light guide plate |
| CN102151999A (en) * | 2011-02-10 | 2011-08-17 | 苏州茂立光电科技有限公司 | Method for manufacturing optical microstructure patterns in light guide plate |
| CN103042455A (en) * | 2011-10-13 | 2013-04-17 | 靖江市永盛光电科技有限公司 | Grinding machining process of mould core of light guide plate |
| TWI472817B (en) * | 2013-04-30 | 2015-02-11 | Radiant Opto Electronics Corp | A light guide means and a backlight module having the light guide means |
| CN103675985A (en) * | 2013-12-07 | 2014-03-26 | 东莞市现代精工实业有限公司 | Light guide plate and mould for manufacturing light guide plate |
| CN107448909B (en) * | 2016-05-31 | 2019-10-15 | 瑞仪光电(苏州)有限公司 | Backlight module |
| CN110579834B (en) * | 2018-06-08 | 2021-07-30 | 芝奇国际实业股份有限公司 | Light guide assembly and electronic device with same |
| CN110161619B (en) * | 2019-05-30 | 2021-09-28 | 开平市盈光机电科技有限公司 | Light guide plate |
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|---|---|---|---|---|
| CN1696779A (en) * | 2004-05-15 | 2005-11-16 | 鸿富锦精密工业（深圳）有限公司 | Guiding light plate and backlight module |
| CN1713053A (en) * | 2004-06-16 | 2005-12-28 | 三星电子株式会社 | Backlight assembly and liquid crystal display apparatus having the same |
| CN1725084A (en) * | 2004-07-24 | 2006-01-25 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and module backlight |
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- 2007-07-09 CN CN2007101286542A patent/CN101067670B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696779A (en) * | 2004-05-15 | 2005-11-16 | 鸿富锦精密工业（深圳）有限公司 | Guiding light plate and backlight module |
| CN1713053A (en) * | 2004-06-16 | 2005-12-28 | 三星电子株式会社 | Backlight assembly and liquid crystal display apparatus having the same |
| CN1725084A (en) * | 2004-07-24 | 2006-01-25 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate and module backlight |
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