CN100376974C - Direct type back light module - Google Patents
Direct type back light module Download PDFInfo
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- CN100376974C CN100376974C CNB2005100836438A CN200510083643A CN100376974C CN 100376974 C CN100376974 C CN 100376974C CN B2005100836438 A CNB2005100836438 A CN B2005100836438A CN 200510083643 A CN200510083643 A CN 200510083643A CN 100376974 C CN100376974 C CN 100376974C
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- backlight module
- diffuser plate
- direct type
- conjunction
- circuit board
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- 239000000758 substrate Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 2
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001795 light effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The present invention discloses a direct backlight module which comprises a basal plate, a screw cap, an auxiliary diffuser plate, a supporting post, a diffuser plate and at least an LED, wherein the screw cap is arranged on the basal plate; the auxiliary diffuser plate is loaded on the screw cap; the supporting post comprises a tapered post and a screw, wherein the tapered post comprises a tapered top and a tapered bottom; the screw projects on the tapered bottom, passes through the auxiliary diffuser plate, and is combined with the screw cap; in addition, the diffuser plate is loaded on the tapered top; the LED is arranged below the auxiliary diffuser plate.
Description
Technical field
The present invention relates to a kind of direct type backlight module, particularly a kind of direct type backlight module with double-deck diffuser plate.
Background technology
Liquid crystal display (LCD) technology one is in being applied to portable electronic products such as mobile computer, mobile phone, digital camera, Video Camera, PDA.Liquid crystal panel (LCD panel) is the display module of most critical in the field for this reason, yet itself is not luminous, need show by being provided with just of a backlight.Had many kinds of backlight technology now, and in large scale (about's more than 20 o'clock) lcd products, often used direct type backlight module (bottom lighting module), with backlight as liquid crystal panel.And because electroluminescence technology growing, (Light Emitting Diode LED) uses the light source that becomes in the direct type backlight module, has become the theme of a development with light emitting diode.
LED source will have breakthrough help to liquid crystal display product, main cause is that the luminous efficacy of light emitting diode has obtained to improve significantly, it is generally acknowledged the light emitting diode of present stage, technical possessed the usefulness of cold cathode fluorescent lamp about half, even nowadays the luminous efficacy of light emitting diode is expected to run neck and neck with cold cathode fluorescent lamp, certainly, this only is with regard to the brightness aspect of light emitting diode.If the characteristic of the high reaction velocity of light emitting diode is used, red, blue, green three kinds of LED source are switched at a high speed in regular turn lit a lamp, then can replace the colored filter of high unit price in the liquid crystal panel.In view of this, LED source will be comprehensively and completely to the influence of liquid crystal display product future development trend.
Please refer to Fig. 1, Fig. 1 is existing backlight module side cross section view.Backlight module 10 comprises a backlight module base 12, a circuit board 13, at least one light emitting diode 14, a reflector plate 16 and a diffuser plate 18.Wherein, circuit board 13 is electrically connected with those light emitting diodes 14, to be used for controlling those light emitting diodes 14.
Wherein, circuit board 13 is arranged on the backlight module base 12, and circuit board 13 has a plurality of holes 131, and light emitting diode 14 first halves have an illuminating part 141 and Lower Half has a light emitting diode base 142.Illuminating part 141 is positioned on the circuit board 13 by hole 131, and light emitting diode base 142 is a thermal source main in the light emitting diode 14, is arranged at substantially under the circuit board 13, influences the optical efficiency of backlight module 10 to avoid its heat energy.
Again, reflector plate 16 is arranged on the circuit board 13 in the mode of fitting, and reflector plate 16 has a plurality of holes 161, and a plurality of holes 161 are corresponding with a plurality of holes 131 of circuit board 13 respectively.A plurality of holes 161 also are used for making the illuminating part 141 of light emitting diode 14 to protrude from the reflector plate 16.By reflector plate 16, the upwards reflection of the light of the diode of autoluminescence in the future 14 can be used light fully.
The diffuser plate 18 of printing opacity utilizes its marginal portion to be set up on the backlight module base 12, different by diffuser plate 18 material refractive indexes and air, can make the light of part incident diffuser plate 18 produce total reflection, and between diffuser plate 18 and reflector plate 16, repeatedly reflect, like this then the mixed light effect that can promote the light that each light emitting diode 14 sent makes the light that penetrates diffuser plate 18 have uniform brightness and colourity.
Please refer to Fig. 2, Fig. 2 is existing light-emitting diode (LED) backlight module sectional view with double-deck diffuser plate.Because light emitting diode 14 is lateral emitting (Side Emitting), so its light major part can't directly launch upward, in view of this, occurred light-emitting diode (LED) backlight module 20 as shown in Figure 2 in the prior art.Light-emitting diode (LED) backlight module 20 is identical with the light-emitting diode (LED) backlight module 10 of Fig. 1 substantially, and its main difference only is to have added an auxiliary diffuser plate 22 between reflector plate 16 and diffuser plate 18.
And the light emitting diode major part is to be applied among the undersized liquid crystal display product at present, the for example mobile phone screen or the backlight of automobile liquid crystal screen, about the LCD screen of large-size, even the application of back light source in LED then is the important technology that present research staff actively drops into exploitation in the LCD TV.When the size of LCD screen strengthens, light-emitting diode (LED) backlight module as its backlight also needs to strengthen its area, in the case, light-emitting diode (LED) backlight module as shown in Figures 1 and 2 then need increase the quantity of the light emitting diode 14 of use, and the base areas of framework wherein 12, reflector plate 16 areas, diffuser plate 18 areas and auxiliary diffuser plate 22 areas all need to strengthen.
Yet, as shown in Figures 1 and 2, reflector plate 16, diffuser plate 18 and auxiliary diffuser plate 22 only utilize its marginal portion separately to be set up on the backlight module base 12, and after its area strengthened, the weight that increases the weight of can make diffuser plate 18 and auxiliary diffuser plate 22 produce the phenomenon of depression.This depressed phenomenon is unacceptable shortcoming for the liquid crystal display product of emphasizing the light uniformity coefficient, because in case the flatness of diffuser plate 18 and auxiliary diffuser plate 22 is bad, can cause the light uniformity coefficient of light-emitting diode (LED) backlight module 10,20 integral body seriously to descend, and the size of liquid crystal display product is when big more, and this shortcoming can be apparent more serious.
Therefore, become gradually under two megatrend of main stream light sources towards large scale development and LED source at liquid crystal display product, for the research staff who is engaged in the LED source association area, how improving the depression shortcoming of diffuser plate in the light-emitting diode (LED) backlight module and auxiliary diffuser plate, is to be the important directions of research and development at present so that light-emitting diode (LED) backlight module is kept the uniformity coefficient of its light.
Summary of the invention
The object of the present invention is to provide a kind of backlight module, have supporting construction,, and improve the quality that has backlight module now with solution existing in prior technology problem to support auxiliary diffuser plate and diffuser plate wherein.
The invention provides a kind of direct type backlight module, among the embodiment, backlight module has comprised a backlight module base, and a nut is arranged on this backlight module base; One auxiliary diffuser plate is carried on this nut; One circuit board is arranged between this backlight module base and this auxiliary diffuser plate, and this circuit board has a hole, so that this nut passes through; At least one light emitting diode is assembled in this circuit board; One support column comprises an awl post and a screw, and this awl post comprises an awl Xiang Yuyi awl end, and this screw protrudes from the bottom of this awl, and passes this auxiliary diffuser plate, and is incorporated into this nut; And a diffuser plate, be carried on this vertex of a cone.
The invention provides a kind of direct type backlight module, among another embodiment, backlight module has comprised a backlight module base; One circuit board is arranged on this backlight module base; At least one light emitting diode is assembled in this circuit board; One nut is arranged on this circuit board; One auxiliary diffuser plate is carried on this nut; One support column comprises an awl post and a screw, and this awl post comprises a vertex of a cone and an awl end, and this screw protrudes from the bottom of this awl, and passes this auxiliary diffuser plate, and is incorporated into this nut; And a diffuser plate, be carried on this vertex of a cone.
About the advantages and spirit of the present invention, and more detailed embodiment can be by following embodiment and appended graphic being further understood.
Description of drawings
Fig. 1 is existing backlight module side cross section view;
Fig. 2 is existing light-emitting diode (LED) backlight module side cross section view with double-deck diffuser plate;
Fig. 3 is direct type backlight module one an embodiment synoptic diagram of the present invention;
Fig. 4 is another embodiment synoptic diagram of direct type backlight module of the present invention;
Fig. 5 A～Fig. 5 E is other embodiment synoptic diagram of screw among the present invention and nut.
Embodiment
See also Fig. 3, it is the first embodiment synoptic diagram of direct type backlight module of the present invention.Backlight module 30 comprises a substrate 32, a nut 33, an auxiliary diffuser plate 34, a support column 35, a diffuser plate 36 and a light emitting diode 37.
Wherein, substrate 32 can be a circuit board (PCBA), and this circuit board is electrically connected and is used for controlling those light emitting diodes 37 with light emitting diode 37.This circuit board is arranged on the backlight module base 39, and utilizes its marginal portion to be set up on the backlight module base 39.Again, this circuit board has a plurality of holes 321, and light emitting diode 37 first halves have an illuminating part 371, and Lower Half has light emitting diode base 372, and light emitting diode base 372 is embedded in the hole 321, and illuminating part 371 is exposed on this circuit board.
In an embodiment of the present invention, after can making screw 352 and nut 33 combining, possess a preset space length between the awl end 3512 and the nut 33, make the awl end 3512 can not grip auxiliary diffuser plate 34, avoid auxiliary diffuser plate 34 to cave in because of the stress that excessively grips with nut 33.Wherein, this preset space length is substantially between 0.01mm to 5mm.
Again, diffuser plate 36 is carried on the vertex of a cone 3511.In the enforcement, diffuser plate 36 also can utilize its marginal portion to be set up on the backlight module base 39, to strengthen its assembling intensity.
In one embodiment, a reflector plate 38 is arranged on the substrate (circuit board) 32, and reflector plate 38 has a hole 381 to hold nut.The function that the location can be arranged that cooperates of hole 381 and screw 352 is so that when assembling, be arranged at reflector plate 38 institute's preposition apace.The mode that reflector plate 38 can be fitted is arranged on substrate 32 surfaces.By reflector plate 38, the upwards reflection of the light of the diode of autoluminescence in the future 37 can be used light fully.
Have double-deck diffuser plate in the backlight module 30 of the present invention, comprise auxiliary diffuser plate 34 and diffuser plate 36, in order to strengthen the function of light emitting diode mixed light.
The position of auxiliary diffuser plate 34 is near light emitting diode 37, and this makes light that light emitting diode 37 sent when incident auxiliary diffuser plate 34, and its incident angle is bigger, is easier to produce the reflection of wide-angle, and preferable mixed light effect is arranged.Forms two mixed light spaces by reflector plate 38, auxiliary diffuser plate 34 and diffuser plate 36, can promote the mixed light effect of the light that each light emitting diode 37 sent, make the light of ejaculation diffuser plate 36 have uniform brightness and colourity.
See also Fig. 4, it is another embodiment synoptic diagram of direct type backlight module of the present invention.Backlight module 50 comprises a substrate 59, a nut 53, an auxiliary diffuser plate 54, a support column 55, a diffuser plate 56 and a light emitting diode 57.
Among this embodiment, substrate 59 refers to a backlight module base (back bezel), and wherein, this backlight module base is a sheet metal.As shown in Figure 4, nut 53 is imbedded or welding manner with punching press, is arranged on the substrate 59; And auxiliary diffuser plate 54 is carried on the nut 53.
Again, backlight module 50 more comprises a circuit board 52, and circuit board 52 is arranged between auxiliary diffuser plate 54 and the substrate 59, utilizes its edge part to be set up on the substrate 59.On the circuit board 52 reflector plate 58 can be set.Circuit board 52 offers hole 581 with reflector plate 58, and use and can pass through hole 581 so that be arranged at the nut 53 of substrate 59, and carrying auxiliary diffuser plate 54.
As shown in the above description, by nut 53 and support column 55, can provide auxiliary diffuser plate 54 and diffuser plate 56 good supporting effects.Certainly, also can utilize on the step structure of backlight module base 59 or the abutment wall all around, support the marginal portion of auxiliary diffuser plate 54 and diffuser plate 56.To strengthen the steadiness of backlight module 50 overall architecture.
The Lights section among Fig. 4 embodiment, light emitting diode 57 is to be assembled in another hole 521 of circuit board 52, the light that light emitting diode 57 is launched can obtain good mixed light effect because of auxiliary diffuser plate 54 and diffuser plate 56, so that backlight module 50 can provide a mixed light good backlight.
Please refer to Fig. 5 A, it shows the support column 35 of another embodiment of the present invention, and in other changeable embodiment of the present invention, screw 352 shown in Figure 3 can utilize the shank 352 ' shown in Fig. 5 A to replace it, and shank 352 ' is not for having the cylinder of screw thread.No matter be the screw 352 in the previous embodiment, or the shank 352 ' in the present embodiment, all can be considered a public conjunction.
And nut 33 shown in Figure 3 can utilize the inner female conjunction 33 ' (as Fig. 5 A) that does not have screw thread to replace it.Female conjunction 33 ' inside has a combined hole 331 '.
The shank 352 ' of Fig. 5 A can utilize the mode of close-fitting to combine with female conjunction 33 ', and in the enforcement, female conjunction 33 ' is preferable with metal material, and shank 352 ' can be plastic material, and it is made with injection molding.
Therefore, can make and the rough tangent plane radius in aperture of combined hole 331 ' thus, then can make public conjunction 352 ' combine with the mode of female conjunction 33 ' with close-fitting smaller or equal to public conjunction 352 '.
In another embodiment, the combination of shank 352 ' and female conjunction 33 ' also can the above-mentioned close-fitting mode of unfavorable usefulness, but the aperture of combined hole 331 ' is equated substantially with the tangent plane radius of public conjunction 352 ', even the aperture that makes combined hole 331 ' is slightly larger than public in conjunction with 352 ' tangent plane radius approximately, so that the two combines, this is another embodiment of the present invention.
And consider to possess between the awl end 3512 and the female conjunction 33 ' substantially preset space length between 0.01～5mm, to avoid causing the depression of auxiliary diffuser plate (Fig. 3 label 34 or Fig. 4 label 54), can make that then combined hole 331 ' has a predetermined depth, the predetermined depth of combined hole 331 ' is less than a predetermined length of shank 352 ', and the difference of the two is between 0.01～5mm, then can keep thus at the bottom of the above-mentioned awl 3512 and female conjunction 33 ' between preset space length.
Please refer to Fig. 5 B to Fig. 5 E, it is the different embodiment cut-open views of A-A ' of Fig. 5 A.As shown in the figure, under the shank 352 ' that does not have the spiral shell mosquito and implementation method that female conjunction 33 ' is combining, shank 352 ' can be the shape of not shown among circle, sexangle, square, triangle or other figure with the section shape of combined hole 331 '.
It is described to take a broad view of above embodiment, and the present invention is in response to two megatrend-1 of liquid crystal display product) large scale; 2) LED source, and a kind of backlight module that meets trend is provided.Wherein, improved the depression shortcoming of diffuser plate in the light-emitting diode (LED) backlight module and auxiliary diffuser plate, so that light-emitting diode (LED) backlight module can provide uniform light.And by combining of nut and screw, the invention provides a kind of easily assembled and location and be easy to supporting construction, it has the function that supports auxiliary diffuser plate and diffuser plate simultaneously.By the present invention, a kind of assembling is firm, and the outstanding backlight module of optical effect can supply the industry utilization.
Though illustrated the present invention in conjunction with above preferred embodiments, yet it is not in order to limit the present invention's spirit and invention entity, only to terminate in the foregoing description that.To being familiar with this operator, when understanding and utilize other assembly or mode to produce identical effect easily.So the modification of being done in not breaking away from spirit of the present invention and scope all should be included in the claim.
Claims (18)
1. direct type backlight module comprises:
Substrate;
Female conjunction is arranged on this substrate;
Auxiliary diffuser plate is carried on this mother's conjunction;
Support column comprises awl post and public conjunction, and this awl post comprises the vertex of a cone and the awl end, and this public conjunction protrudes from the bottom of this awl, and passes this auxiliary diffuser plate, and is incorporated into this mother's conjunction above substrate;
Diffuser plate is carried on this vertex of a cone; And
At least one light emitting diode is arranged under this auxiliary diffuser plate.
2. direct type backlight module as claimed in claim 1, wherein, this substrate is a circuit board, this light emitting diode is assembled in this circuit board.
3. direct type backlight module as claimed in claim 2 also comprises the backlight module base, and this backlight module base is arranged under this circuit board.
4. direct type backlight module as claimed in claim 2 also comprises reflector plate, and this reflector plate is arranged on this circuit board.
5. direct type backlight module as claimed in claim 4, wherein, this reflector plate has hole, to hold this mother's conjunction.
6. direct type backlight module as claimed in claim 1, wherein, this substrate is the backlight module base.
7. direct type backlight module as claimed in claim 6, wherein, this backlight module base is formed by metal.
8. direct type backlight module as claimed in claim 6 also comprises circuit board, and this light emitting diode is assembled in this circuit board, and this circuit board is arranged between this auxiliary diffuser plate and this substrate, and this circuit board has hole to hold this mother's conjunction.
9. direct type backlight module as claimed in claim 8 also comprises reflector plate, and this reflector plate is arranged on this circuit board.
10. direct type backlight module as claimed in claim 9, wherein, this reflector plate has hole, to hold this mother's conjunction.
11. direct type backlight module as claimed in claim 1 wherein, has preset space length between 0.01mm to 5mm with this mother's conjunction at the bottom of this awl.
12. direct type backlight module as claimed in claim 1, wherein, this auxiliary diffuser plate has hole, to hold this public conjunction.
13. direct type backlight module as claimed in claim 1, wherein this public conjunction is screw or shank.
14. direct type backlight module as claimed in claim 1 should mother's conjunction be a nut wherein.
15. direct type backlight module as claimed in claim 1 wherein should have combined hole by mother's conjunction, in order to combine with this public conjunction, the section shape of this public conjunction and this combined hole is circular.
16. direct type backlight module as claimed in claim 1 wherein should have combined hole by mother's conjunction, in order to combine with this public conjunction shank, the section shape of this public conjunction and this combined hole is sexangle, square or triangle.
17. a direct type backlight module comprises:
The backlight module base;
Nut is arranged on this backlight module base;
Auxiliary diffuser plate is carried on this nut;
Circuit board is arranged between this backlight module base and this auxiliary diffuser plate, and has hole, so that this nut passes through;
At least one light emitting diode is assembled in this circuit board;
Support column comprises awl post and screw, and this awl post comprises the vertex of a cone and the awl end, and this screw protrudes from the bottom of this awl, and passes this auxiliary diffuser plate, and is incorporated into this nut; And
Diffuser plate is carried on this vertex of a cone.
18. a direct type backlight module comprises:
The backlight module base,
Circuit board is arranged on this backlight module base;
At least one light emitting diode is assembled in this circuit board;
Nut is arranged on this circuit board;
Auxiliary diffuser plate is carried on this nut;
Support column comprises awl post and screw, and this awl post comprises the vertex of a cone and the awl end, and this screw protrudes from the bottom of this awl, and passes this auxiliary diffuser plate, and is incorporated into this nut; And
Diffuser plate is carried on this vertex of a cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100836438A CN100376974C (en) | 2005-07-13 | 2005-07-13 | Direct type back light module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100836438A CN100376974C (en) | 2005-07-13 | 2005-07-13 | Direct type back light module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1725082A CN1725082A (en) | 2006-01-25 |
| CN100376974C true CN100376974C (en) | 2008-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100836438A Active CN100376974C (en) | 2005-07-13 | 2005-07-13 | Direct type back light module |
Country Status (1)
| Country | Link |
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| CN (1) | CN100376974C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105601B (en) * | 2006-07-11 | 2011-07-27 | 奇美电子股份有限公司 | Backlight module and liquid crystal display device using same |
| US8579455B2 (en) | 2011-12-02 | 2013-11-12 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Direct type backlight module and liquid crystal display device |
| CN102434827A (en) * | 2011-12-02 | 2012-05-02 | 深圳市华星光电技术有限公司 | Direct backlight module and liquid crystal display device |
| CN106019701A (en) * | 2016-05-31 | 2016-10-12 | 青岛海信电器股份有限公司 | Direct type backlight module and liquid crystal display device |
| CN107564422B (en) * | 2016-06-30 | 2020-02-07 | 群创光电股份有限公司 | Light emitting diode display device |
| US10809571B2 (en) * | 2017-01-31 | 2020-10-20 | Sharp Kabushiki Kaisha | Lighting device and display device |
| CN110908185A (en) * | 2019-11-25 | 2020-03-24 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06273760A (en) * | 1993-03-17 | 1994-09-30 | Sony Corp | Backlight unit |
| CN1588658A (en) * | 2004-07-01 | 2005-03-02 | 友达光电股份有限公司 | Light-emitting diode light source module with support piece |
| US20050073858A1 (en) * | 2003-10-07 | 2005-04-07 | Lg.Philips Lcd Co., Ltd. | Lamp guide device and backlight assembly for liquid crystal display device using the same |
| CN1605912A (en) * | 2004-11-09 | 2005-04-13 | 友达光电股份有限公司 | Directly-down backlight module |
-
2005
- 2005-07-13 CN CNB2005100836438A patent/CN100376974C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06273760A (en) * | 1993-03-17 | 1994-09-30 | Sony Corp | Backlight unit |
| US20050073858A1 (en) * | 2003-10-07 | 2005-04-07 | Lg.Philips Lcd Co., Ltd. | Lamp guide device and backlight assembly for liquid crystal display device using the same |
| CN1588658A (en) * | 2004-07-01 | 2005-03-02 | 友达光电股份有限公司 | Light-emitting diode light source module with support piece |
| CN1605912A (en) * | 2004-11-09 | 2005-04-13 | 友达光电股份有限公司 | Directly-down backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1725082A (en) | 2006-01-25 |
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Effective date of registration: 20240201 Address after: 825 Watercreek Avenue, Allen, Texas, USA, Unit 250 Patentee after: Optoelectronic Science Co.,Ltd. Guo jiahuodiqu after: Mei Guo Address before: Hsinchu City, Taiwan, China Patentee before: AU OPTRONICS Corp. Guo jiahuodiqu before: Zhong Guo |
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