CN1731250A - Direct type backlight module - Google Patents
Direct type backlight module Download PDFInfo
- Publication number
- CN1731250A CN1731250A CN 200510097689 CN200510097689A CN1731250A CN 1731250 A CN1731250 A CN 1731250A CN 200510097689 CN200510097689 CN 200510097689 CN 200510097689 A CN200510097689 A CN 200510097689A CN 1731250 A CN1731250 A CN 1731250A
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- Prior art keywords
- circuit board
- backlight module
- light source
- board assemblies
- light emitting
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- 230000000712 assembly Effects 0.000 claims description 46
- 238000000429 assembly Methods 0.000 claims description 46
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
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- 229910052782 aluminium Inorganic materials 0.000 description 2
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- 229910052802 copper Inorganic materials 0.000 description 2
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- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000278713 Theora Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
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- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a straight download negative phototropic module, which comprises a circuit component, a reflecting sheet and a plurality of light-emitting diodes. The circuit component comprises a first side, a second side which is opposite to the first side and a light groove through first side and second side, wherein the reflecting sheet is positioned on the first side and possesses many holes and many light-emitting diodes; the location of the light groove is at least correspondent with two holes; each light-emitting diode is positioned on the hole inside the light groove; each light-emitting diode has a light-emitting part and a diode seat which has at least two electrodes connected with the second side of the circuit component.
Description
Technical field
The present invention relates to a kind of direct type backlight module, particularly relating to a kind of is the direct type backlight module of light source with the light emitting diode.
Background technology
Now, LCD is generally used at various information display devices, its primary structure can be divided into panel module and backlight module two large divisions, and panel module comprises assemblies such as ITO conducting glass substrate, liquid crystal layer, alignment film, colored filter, polaroid, drive IC generally; Backlight module mainly comprises light source, light guide plate, prismatic lens, diffuser plate and reflector plate and blooming miscellaneous, provides the panel module light source by backlight module, to reach the purpose that information shows.The performance of lcd products integral body is subjected to the reciprocal effect of all intrawares, and wherein backlight module has been played the part of the key player on screen intensity, uniformity coefficient, contrast and visual angle.
Backlight module generally more can be divided into two kinds of ora terminalis formula and straight-down negatives according to the position of light source, and the ora terminalis formula is that light source is placed the backlight module side end face, can reduce the thickness of backlight module, so majority is used in the portable liquid crystal display.Straight-down negative is placed in the backlight module below with light source, can obtain homogeneity brightness preferably, and because of having bigger installing space, can install more light source, needing in the display device of high brightness, wide viewing angle to be suitable for.
Aspect light source, 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 to the luminous efficacy of light emitting diode in 2005 be 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.
See also shown in Figure 1A and Figure 1B, Figure 1A is the assembly exploded view of the direct type backlight module of light source for having now with the light emitting diode, and Figure 1B is that Figure 1A is with the side view of screw with the assembly combination.This backlight module 1 comprises a circuit board (PCB) 10, a plurality of light emitting diode (LED) 14 and a heat abstractor 16.
Each light emitting diode 14 is arranged in the above-mentioned through hole 103, and each above-mentioned light emitting diode 14 has an illuminating part 141 and a diode base 142, and diode base 142 embeds in those through holes 103, and illuminating part 141 is exposed on the circuit board 10.Diode base 142 has at least two electrodes 143, two electrodes 143, and to be connected in 10 second 102, two electrodes 143 of circuit board with welding manner be to be electrically connected with circuit board 10, so those light emitting diodes 14 of circuit board 10 may command.
As Figure 1B, backlight module 1 also utilizes a screw 19 lock circuit board 10 and heat abstractor 16.Circuit board 10 has at least one boring 122, and screw 19 first 101 by circuit board 10 is passed down through boring 122 to lock heat abstractor 16.In said structure, circuit board 10 and heat eliminating medium 17 boring in advance are so that lock heat abstractor 16 and circuit board 10 by screw 19.
As shown in Figure 2, it has the vertical view of screw 19 locking heat abstractors 16 and circuit board 10 for above-mentioned Figure 1B.First of circuit board 10 101 through hole 103 with prior boring and marshalling wherein is in order to embed those light emitting diodes 14.Heat abstractor 16 and heat eliminating medium 17 in order to lock below circuit board 10 again, therefore need on circuit board 10, make neat boring 122 in addition, allow those screws 19 from top to bottom circuit board 10, heat eliminating medium 17 and heat abstractor 16 be fixed well directly by boring 122.
Because when the existing light emitting diode 14 of Fig. 2 makes up with circuit board 10, circuit board 10 need form a plurality of through holes 103 in advance embeds light emitting diode 14 one by one, the production method of through hole 103 normally passes through the milling cutter machine to make one by one, but make the action of through hole 103 so one by one, really make the cost of manufacture of backlight module 1 become a burden greatly, therefore how to improve the above-mentioned cost problem of bringing, promptly becoming one is worth discussing improved problem.
In addition, another shortcoming that prior art screw locking mode is brought influences the optical efficiency of backlight module.Among backlight module 1, first 101 of circuit board 10 is provided with reflector plate 18 usually, and has a diffusion sheet 15 to be arranged at reflector plate 18 tops with a preset distance.The light of light emitting diode 14 reaches the effect of mixed light by wide-angle reflection between reflector plate 18 and diffusion sheet 15, afterwards, penetrate backlight module 1 by diffusion sheet 15.
Therefore, the shortcoming of prior art is that above-mentioned screw 19 is locked in circuit board 10 and reflector plate 18 tops, therefore when light emitting diode 14 sends light source to diffuser plate 15, just repeatedly light is reflected between reflector plate 18 and diffuser plate 15, because of the locking area of prior art screw 19 makes that reflector plate 18 areas can't be complete, so having influence on the reflection ray of light source between reflector plate 18 and diffusion sheet 15 of light emitting diode 14 can't be even, also and then that the lighting area of backlight module 1 is caused is inhomogeneous, make the brightness and the colourity of light of backlight module 1 be greatly affected at last.Therefore, the existence of screw will cause lighting area to reduce the bright dipping deleterious.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of direct type backlight module, particularly providing a kind of is the direct type backlight module of light source with the light emitting diode, it improves light emitting diode and screw on the perforate problem of circuit board, and then can improve the light extraction efficiency of the light source of backlight module effectively.
The object of the present invention is achieved like this, and a kind of direct type backlight module promptly is provided, and comprises a circuit board assemblies (PCB element), a reflector plate and a plurality of light emitting diode.
Wherein this circuit board assemblies has one first, first one second relative and light source slot therewith, runs through second therewith in this first face; Reflector plate is arranged at this first, and reflector plate has a plurality of holes, and the position of an above-mentioned light source slot corresponds to two above-mentioned holes at least; And a plurality of light emitting diodes, each above-mentioned light emitting diode is arranged in the corresponding therewith light source slot of an above-mentioned hole, each above-mentioned light emitting diode has an illuminating part and a diode base, and this base has at least two electrodes, and at least two electrodes are welded in second of circuit board assemblies.
In one embodiment of this invention, comprise also that wherein a heat abstractor is arranged at this second side (disposed at the side of the second face) and contacts this diode base.
In one embodiment of this invention, wherein also comprise female conjunction, for example a nut, with a public conjunction, screw for example, this female conjunction (nut) is tight with at second of circuit board assemblies, and public conjunction (screw) combines with female conjunction (nut), and with the heat abstractor clamping between.
In one embodiment of this invention, wherein the diode base of light emitting diode has a peripheral part, is positioned at second, this peripheral part bearer circuit board component.
In one embodiment of this invention, be coated with a thermal paste between heat abstractor and the diode base.
In one embodiment of this invention, wherein circuit board assemblies forms for the combination of at least two circuit boards, and the gap between at least two electroplaxs forms light source slot.
In one embodiment of this invention, wherein circuit board assemblies is a single circuit board, and light source slot is formed at single circuit board.
In one embodiment of this invention, wherein light source slot has one first cell wall and one second cell wall, first cell wall and a plurality of light emitting diodes of the second cell wall clamping.
In one embodiment of this invention, wherein female conjunction (nut) is tight with at the method for circuit board assemblies for imbedding or welding.
In one embodiment of this invention, wherein the shape of circuit board can be an island shape, a Fin sheet shape or an I font shape.
In another embodiment of the present invention, direct type backlight module comprises: a circuit board assemblies, have one first, one second and a light source slot relative with first, run through first with second; One reflector plate is arranged at first, and this reflector plate has a plurality of holes, and the position of an above-mentioned light source slot corresponds to two above-mentioned holes at least; A plurality of light emitting diodes, each above-mentioned light emitting diode is arranged in the corresponding therewith light source slot of an above-mentioned hole, each above-mentioned light emitting diode has an illuminating part and a diode base, and this base has at least two electrodes, and at least two electrodes are welded in second of this circuit board assemblies; One heat eliminating medium is arranged at this second side and contact diode base; One female conjunction (nut) is tight with at second of circuit board assemblies; And a public conjunction (screw), combine with female conjunction (nut), and with this heat eliminating medium clamping between.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Figure 1A is the assembly exploded view of the direct type backlight module of light source for having now with the light emitting diode;
Figure 1B is the side view of Figure 1A with the screw coupling unit;
Fig. 2 is the top view of the direct type backlight module of light source for having now with the light emitting diode;
Fig. 3 is the assembly decomposition chart of direct type backlight module of the present invention;
Fig. 4 is Fig. 3 combination of components side view of the present invention;
Fig. 5 A is the synoptic diagram that is shaped as an island shape of the circuit board of other embodiment of the present invention;
Fig. 5 B is the synoptic diagram that is shaped as a Fin sheet shape of the circuit board of other embodiment of the present invention; And
The synoptic diagram that is shaped as the I font of the circuit board of other embodiment of Fig. 5 C the present invention.
Embodiment
Drawing reference numeral
Circuit board: 10,200 light emitting diodes: 14,24
Boring: 122 first: 101,201
Second: 102,202 through holes: 103
Illuminating part: 141,241 diode bases: 142,242
Electrode: 143,243 heat abstractors: 16,26
Body: 161,261 radiating fins: 162,262
Heat eliminating medium: 17,271 backlight modules: 1,2
Circuit board assemblies: 20 reflector plates: 18,22
Light source slot: 203 holes: 221
Nut: 28 screws: 19,29
Base plate: 211 abutment walls: 2111
Diffusion sheet: 15,212 first cell walls: 2031
Second cell wall: 2032 peripheral part: 244
See also shown in Figure 3ly, be the assembly decomposition chart of direct type backlight module of the present invention.Backlight module 2 comprises a circuit board assemblies (PCB element) 20, one reflector plate 22 and a plurality of light emitting diode (LED) 24.
Each light emitting diode 24 is arranged in the corresponding hole 221.Each light emitting diode 24 has an illuminating part 241 and a diode base 242, and illuminating part 241 is positioned at by light source slot 203 and hole 221 on first 201 of circuit board assemblies 20.Because diode base 242 is a thermal source main in the light emitting diode 24, therefore it is arranged under the circuit board assemblies 20 substantially, promptly second 202, and do not make first 201 optical efficiency that influence backlight module 2 of diode base 242 in bright dipping.
See also Fig. 4, it is the side view of above-mentioned Fig. 3 combination of components.Diode base 242 has at least two electrodes 243, two electrodes 243 and is welded in second 202 of circuit board assemblies 20, can be electrically connected light emitting diode 24 and circuit board assemblies 20 on the one hand, and light emitting diode 24 and circuit board assemblies 20 are fixed.In embodiments of the present invention, base 242 has a peripheral part 244, but peripheral part 244 bearer circuit board components 20.
In addition, backlight module 2 more comprises a backboard (back bezel), this backboard comprises a base plate 211 and a wall limit 2111, base plate 211 is arranged at heat abstractor 26 belows, abutment wall 2111 is in order to supporting a reflector plate 22, a circuit board assemblies 20 and a heat eliminating medium 271, and utilizes base plate 211 and abutment wall 2111 the said modules textural association can be contained in wherein.Base plate 211 and abutment wall 2111 device that can be one or separate wherein.And use screw 29 that base plate 211 is engaged locking with heat abstractor 26.Heat abstractor 26 can be selected from the composition of a radiating fin, a heat pipe or a fan.
Wherein a diffusion sheet 212 also can be set up in abutment wall 2111, and is positioned at the top of reflector plate 22, and diffuser plate 212 utilizes the different of its material refractive index and air dielectric refractive index, and the characteristic that can make light produce the reflection of interface wide-angle realizes the function of mixed light.By the mixed light space that reflector plate 22 and diffuser plate 212 are formed, can promote the mixed light effect of the light that each light emitting diode 24 sent, make the light of ejaculation diffuser plate 212 have uniform brightness and colourity.
Then see also the circuit board assemblies vertical view of the backlight module of other embodiments of the invention.Among the embodiment, circuit board assemblies 20 utilizes the gap between this at least two circuit board 200 to form light source slot 203 at least two circuit boards 200 combine.Light source slot 203 has one first cell wall 2031 and one second cell wall 2032.In one embodiment, first cell wall 2031 and second cell wall 2032 be a plurality of light emitting diodes 24 of clamping respectively, to strengthen the assembling intensity of backlight module 2.In the other embodiment of the present invention, the shape of circuit board 200 can be an island shape (as Fig. 5 A), a Fin sheet shape (as Fig. 5 B), an I font (as Fig. 5 C) or other shape not shown in the figures.The shape of light source slot 203 can be an enclosed slot for example shown in Figure 3; Can all nonocclusive opening groove for the two ends of for example groove shown in Fig. 5 A also; Or can be non-sealing for a for example end of the groove shown in Fig. 5 B, Fig. 5 C, and the other end of groove is the opening groove of sealing.
In of the present invention another implemented, circuit board assemblies 20 was a single circuit board, and can utilize any way, and this light source slot 203 is formed in the single circuit board.
The public conjunction of backlight module of the present invention (for example screw) is with the advantage of the design of light source slot:
1. the preparation of the light source slot of circuit board assemblies is made more simple than the through hole of the light emitting diode of prior art.
2. utilize the hole of reflector plate, can increase the locating effect of light emitting diode.
3. by second public conjunction that locks (for example screw) of circuit board assemblies, can not influence first reflector plate area of bright dipping.
In sum, the disclosed backlight module of the present invention provides a simple and easy light source slot design, improves the shortcoming of the complicated preparation of prior art through hole; And another advantage of the present invention is, with second locking of screw by circuit board assemblies, can not influence first reflector plate area of bright dipping, and this kind invention can improve the shortcoming of existing screw by first locking.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (15)
1. direct type backlight module comprises:
One circuit board assemblies (PCB element) has one first, one second and at least one light source slot relative with this first, run through this first with this second;
One reflector plate is arranged at this first, and this reflector plate has a plurality of holes,
The position of one above-mentioned light source slot corresponds to two above-mentioned holes at least; And
A plurality of light emitting diodes (LED), each above-mentioned light emitting diode is arranged in the above-mentioned hole, each above-mentioned light emitting diode has an illuminating part and a diode base, and this diode base has at least two electrodes, and this at least two electrode is welded in this second of this circuit board assemblies.
2. backlight module as claimed in claim 1 comprises also that wherein a heat abstractor is arranged at this second side (disposed at the side of the second face) and contacts this diode base.
3. backlight module as claimed in claim 2 wherein also comprises a female conjunction and a public conjunction, and this mother's conjunction is tight with at this second of this circuit board assemblies, and this public conjunction combines with this mother's conjunction, and with this heat abstractor clamping between.
4. backlight module as claimed in claim 3 wherein should be tight with at the method for this circuit board assemblies for imbedding or welding by mother's conjunction.
5. backlight module as claimed in claim 2, wherein this diode base has a peripheral part, is positioned at this second, and this peripheral part carries this circuit board assemblies.
6. backlight module as claimed in claim 1, wherein this circuit board assemblies forms for the combination of at least two circuit boards, and the gap between this at least two electroplax forms this light source slot.
7. backlight module as claimed in claim 1, wherein this circuit board assemblies is a single circuit board, this light source slot is formed in this single circuit board.
8. backlight module as claimed in claim 1, wherein the shape of this circuit board can be an island shape, a Fin sheet shape or an I font shape.
9. direct type backlight module comprises:
One circuit board assemblies (PCB element) has one first, one second and a light source slot relative with this first, run through this first with this second;
A plurality of light emitting diodes (LED), each above-mentioned light emitting diode is arranged in the light source slot of an above-mentioned correspondence, each above-mentioned light emitting diode has an illuminating part and a diode base, this diode base has at least two electrodes, and this at least two electrode is welded in this second of this circuit board assemblies;
One heat abstractor is arranged at this second side and contacts this diode base;
One female conjunction is tight with at this second of this circuit board assemblies; And
One public conjunction combines with this mother's conjunction, and with this heat abstractor clamping between.
10. backlight module as claimed in claim 9, wherein also comprise a reflector plate, be arranged at this first, this reflector plate has a plurality of holes, the position of one above-mentioned light source slot corresponds to two these holes at least, and each this light emitting diode also is arranged in this hole.
11. backlight module as claimed in claim 9, wherein this diode base has a peripheral part, is positioned at this second, and this peripheral part carries this circuit board assemblies.
12. backlight module as claimed in claim 9, wherein this circuit board assemblies forms for the combination of at least two circuit boards, and the gap between this at least two electroplax forms this light source slot.
13. backlight module as claimed in claim 9, wherein this circuit board assemblies is a single circuit board, and this light source slot is formed in this single circuit board.
14. backlight module as claimed in claim 9 wherein should be tight with at the method for this circuit board assemblies for imbedding or welding by mother's conjunction.
15. backlight module as claimed in claim 9, wherein the shape of this circuit board can be an island shape, a Fin sheet shape or an I font shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100976895A CN100365485C (en) | 2005-08-31 | 2005-08-31 | Direct type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100976895A CN100365485C (en) | 2005-08-31 | 2005-08-31 | Direct type backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731250A true CN1731250A (en) | 2006-02-08 |
| CN100365485C CN100365485C (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100976895A Active CN100365485C (en) | 2005-08-31 | 2005-08-31 | Direct type backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100365485C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011038562A1 (en) * | 2009-09-30 | 2011-04-07 | 深圳帝光电子有限公司 | Direct-type ultra-thin liquid crystal display device |
| WO2012048488A1 (en) * | 2010-10-15 | 2012-04-19 | 深圳市华星光电技术有限公司 | Backlight module and display apparatus |
| WO2012116523A1 (en) * | 2011-03-01 | 2012-09-07 | 深圳市华星光电技术有限公司 | Light source fixing device, light source assembly and a method for assembling the same |
| WO2012129829A1 (en) * | 2011-03-29 | 2012-10-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN101303474B (en) * | 2007-05-09 | 2012-12-05 | 奇美电子股份有限公司 | Backlight module, LCD device and method for manufacturing LCD device |
| US8678603B2 (en) | 2011-03-29 | 2014-03-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module having elastic holder and liquid crystal display employing same |
| CN103982813A (en) * | 2013-02-08 | 2014-08-13 | 香港理工大学 | Ultrathin large-size direct-type backlight module |
| CN109307954A (en) * | 2018-10-31 | 2019-02-05 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN109387981A (en) * | 2018-12-20 | 2019-02-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and liquid crystal display panel |
| CN111212486A (en) * | 2020-01-07 | 2020-05-29 | Tcl华星光电技术有限公司 | Film heating device and film curing method |
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| US5857767A (en) * | 1996-09-23 | 1999-01-12 | Relume Corporation | Thermal management system for L.E.D. arrays |
| US6517218B2 (en) * | 2000-03-31 | 2003-02-11 | Relume Corporation | LED integrated heat sink |
| DE50209685D1 (en) * | 2001-09-13 | 2007-04-19 | Lucea Ag | LUMINAIRE DIODE PANEL AND PCB |
| CN100346214C (en) * | 2004-04-07 | 2007-10-31 | 友达光电股份有限公司 | Backlight modular |
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- 2005-08-31 CN CNB2005100976895A patent/CN100365485C/en active Active
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| CN101303474B (en) * | 2007-05-09 | 2012-12-05 | 奇美电子股份有限公司 | Backlight module, LCD device and method for manufacturing LCD device |
| WO2011038562A1 (en) * | 2009-09-30 | 2011-04-07 | 深圳帝光电子有限公司 | Direct-type ultra-thin liquid crystal display device |
| WO2012048488A1 (en) * | 2010-10-15 | 2012-04-19 | 深圳市华星光电技术有限公司 | Backlight module and display apparatus |
| US8899788B2 (en) | 2011-03-01 | 2014-12-02 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Light source fixing device, light source assembly and assembling method thereof |
| WO2012116523A1 (en) * | 2011-03-01 | 2012-09-07 | 深圳市华星光电技术有限公司 | Light source fixing device, light source assembly and a method for assembling the same |
| WO2012129829A1 (en) * | 2011-03-29 | 2012-10-04 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US8678603B2 (en) | 2011-03-29 | 2014-03-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module having elastic holder and liquid crystal display employing same |
| CN103982813A (en) * | 2013-02-08 | 2014-08-13 | 香港理工大学 | Ultrathin large-size direct-type backlight module |
| CN103982813B (en) * | 2013-02-08 | 2017-08-15 | 香港理工大学 | Ultra-thin large-size direct backlight module |
| CN109307954A (en) * | 2018-10-31 | 2019-02-05 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN109307954B (en) * | 2018-10-31 | 2024-04-09 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN109387981A (en) * | 2018-12-20 | 2019-02-26 | 惠州市华星光电技术有限公司 | A kind of backlight module and liquid crystal display panel |
| CN109387981B (en) * | 2018-12-20 | 2021-07-06 | 惠州市华星光电技术有限公司 | Backlight module and liquid crystal display panel |
| CN111212486A (en) * | 2020-01-07 | 2020-05-29 | Tcl华星光电技术有限公司 | Film heating device and film curing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100365485C (en) | 2008-01-30 |
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Effective date of registration: 20240202 Address after: 825 Watercreek Avenue, Allen, Texas, USA, Unit 250 Patentee after: Optoelectronic Science Co.,Ltd. Country or region after: U.S.A. Address before: Hsinchu City, Taiwan, China Patentee before: AU OPTRONICS Corp. Country or region before: China |