CN102080789A - Liquid crystal display and backlight module thereof - Google Patents
Liquid crystal display and backlight module thereof Download PDFInfo
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- CN102080789A CN102080789A CN 201010530396 CN201010530396A CN102080789A CN 102080789 A CN102080789 A CN 102080789A CN 201010530396 CN201010530396 CN 201010530396 CN 201010530396 A CN201010530396 A CN 201010530396A CN 102080789 A CN102080789 A CN 102080789A
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Abstract
The invention discloses a liquid crystal display and a backlight module thereof. The backlight module comprises a light guide plate and a linear light source. The light guide plate has a top light leaving face and a lateral light incident face, wherein the top light leaving face comprises a peripheral area and an effective lighting area. The linear light source comprises a circuit board, a plurality of solid light emitting elements and a reflector. The solid light emitting elements are configured on the circuit board and are electrically connected with the circuit board, the light beams provided by the solid light emitting elements enter the light guide plate from the lateral light incident face, and the reflector covers part of the peripheral area. In addition, the reflector comprises a plurality of reflecting parts corresponding to the solid light emitting elements and a plurality of second reflecting parts connected between each two adjacent first reflecting parts, the first and second reflecting parts extend toward the direction of the effective lighting area from the edge of the top light leaving face, and the extended length of the first reflecting parts is smaller than that of the second reflecting parts. In the invention, the light spots generated by the backlight module can be effectively improved.
Description
Technical field
(liquid crystal display LCD), and is particularly related to a kind of backlight module to the present invention relates to a kind of LCD.
Background technology
Because LCD has conventional cathode ray tube (cathode ray tube such as low voltage operating, radiationless line scattering, in light weight and volume be little, CRT) display of the manufacturing advantage that is beyond one's reach, therefore LCD has become the major subjects of display research in recent years, and constantly develops towards colorize.
Because LCD is non-self-luminous display, therefore need backlight module that required light is provided, can reach the function of demonstration.In recent years, along with the lifting of environmental consciousness, (cold cathode fluorescent lamp CCFL) converts the light-emitting diode of more environmental protection to employed light-emitting component from cathode fluorescent tube gradually in the backlight module.When light-emitting diode is applied in the backlight module; with the lateral incident type backlight module is example; light-emitting diode is arranged on the printed circuit board (PCB) of a strip usually to form light-emitting diode light bar (LED light bar); (flexible printed circuit FPC) electrically connects with a control circuit board and light-emitting diode light bar can pass through a pliability circuit usually.
Fig. 1 is the schematic top plan view of LGP and light-emitting diode light bar in the known lateral incident type backlight module.Please refer to Fig. 1, known lateral incident type backlight module 100 comprises a LGP 110 and a linear light sorurce 120.LGP has a top exiting surface 112 and a side direction incidence surface 114 that is connected with top exiting surface 112, and top exiting surface 112 comprises a surrounding zone 112a who is connected with side direction incidence surface 114 and an effective lighting district 112b.As can be seen from Figure 1, it is other that linear light sorurce 120 is disposed at side direction incidence surface 114, and linear light sorurce 120 comprises a circuit board 122 and a plurality of light-emitting diode 124, and light-emitting diode 124 is disposed on the circuit board 122 and with circuit board 122 and electrically connects.
As shown in Figure 1, in the linear light sorurce 120, the spacing of any two adjacent light-emitting diodes 124 (pitch) is P, and the light-emitting area of each light-emitting diode 124 is A to the beeline at the edge of effective lighting district 112b.In order to make the brightness in the effective lighting district 112b even, the producer can decide optimized A/P ratio (A/P ratio) according to the divergence of beam angle α of light-emitting diode 124.Yet, LCD is gradually towards narrow frame designs at present, if will meet the design requirement of narrow frame, beeline A will certainly be required to reduce, and cross when low when the A/P ratio, just the bright hot spot that secretly replaces (hot spot) can occur at the 112b place, effective lighting district near side direction incidence surface 114, the shaded side among Fig. 1 refers to the zone that brightness is lower.This light class can P achieves a solution by reducing at interval, but when spacing P reduced, the producer must use the light-emitting diode 124 of a greater number, and then causes cost to improve.
Hold above-mentionedly,, improve the A/P ratio and cross that the low hot spot that causes is real to be one of subject under discussion of needing to be resolved hurrily at present how at the design requirement that meets narrow frame and increase not significantly under the prerequisite of production cost.
Summary of the invention
In view of this, the LCD that the invention provides a kind of backlight module and have this backlight module.
The present invention proposes a kind of backlight module, and it comprises a LGP and a linear light sorurce.LGP has a top exiting surface and a side direction incidence surface that is connected with the top exiting surface, and ejects the light face and comprise a surrounding zone that is connected with the side direction incidence surface and an effective lighting district.Linear light sorurce is disposed at by the side direction incidence surface, and linear light sorurce comprises a circuit board, a plurality of solid-state light emitting element and a reflector.Solid-state light emitting element is disposed on the circuit board and with circuit board and electrically connects, and solid-state light emitting element is between circuit board and side direction incidence surface, and the light beam that each solid-state light emitting element provided enters LGP from the side direction incidence surface, the surrounding zone of reflector cover part.In addition, reflector comprises a plurality of first reflecting part and a plurality of second reflecting parts that are connected between adjacent two first reflecting parts corresponding to solid-state light emitting element, each first reflecting part and each second reflecting part are extended towards the direction in effective lighting district by the edge of top exiting surface, and the development length of each first reflecting part is less than the development length of each second reflecting part.
The present invention proposes a kind of LCD in addition, it comprises an aforesaid backlight module and a display panels, wherein display panels is disposed at exiting surface top, top, display panels has a viewing area and a perimeter circuit district, and the viewing area is positioned at the top, effective lighting district of LGP, and the perimeter circuit district is positioned at the top, surrounding zone of LGP.
In one embodiment of this invention, aforesaid LGP has a scattering surface, and this scattering surface is connected with the side direction incidence surface, and scattering surface is relative with the top exiting surface.
In one embodiment of this invention, aforesaid backlight module can further comprise an end reflector plate, and this end reflector plate is disposed at the scattering surface below.
In one embodiment of this invention, aforesaid circuit board has an element surface is set, and be provided with on the surface and solid-state light emitting element is disposed at element, and element is provided with the surface in fact perpendicular to the top exiting surface.
In one embodiment of this invention, aforesaid circuit board has an element surface is set, and be provided with on the surface and solid-state light emitting element is disposed at element, and element is provided with the surface and is parallel to the side direction incidence surface in fact.
In one embodiment of this invention, aforesaid each solid-state light emitting element comprises light-emitting diode.
In one embodiment of this invention, the width of aforesaid each first reflecting part equals the width of solid-state light emitting element in fact, and the width of each second reflecting part equals the interval (spacing) of any two adjacent solid-state light emitting elements in fact.
In one embodiment of this invention, aforesaid first reflecting part and second reflecting part are parallel to the top exiting surface in fact.
In one embodiment of this invention, aforesaid reflector can further comprise an assembled portion that is connected with linear light sorurce, this assembled portion is connected with first reflecting part and second reflecting part, and assembled portion has a plurality of openings, and solid-state light emitting element is embedded in the opening of assembled portion.
In one embodiment of this invention, aforesaid assembled portion is connected with circuit board.
In one embodiment of this invention, aforesaid reflector can further comprise an assembled portion that is connected with linear light sorurce, assembled portion is connected with first reflecting part and second reflecting part, and assembled portion comprises a plurality of list structures, and each solid-state light emitting element lays respectively between adjacent two list structures.
In one embodiment of this invention, aforesaid list structure is connected with circuit board.
Because reflector of the present invention has the first different reflecting part of development length and second reflecting part, promote distribution of light intensity between any two adjacent solid-state light emitting elements effectively by second reflecting part, so the present invention's hot spot that can improve backlight module effectively and produced.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is the schematic top plan view of LGP and light-emitting diode light bar in the known lateral incident type backlight module.
Fig. 2 is the schematic diagram of the LCD of first embodiment of the invention.
Fig. 2 ' is the schematic diagram of the another kind of LCD of first embodiment of the invention.
Fig. 3 is the schematic top plan view of the backlight module of first embodiment of the invention.
Fig. 4 is the schematic diagram of the LCD of second embodiment of the invention.
Fig. 4 ' is the schematic diagram of the another kind of LCD of second embodiment of the invention.
Wherein, description of reference numerals is as follows:
100: the lateral incident type backlight module
110: LGP
112: the top exiting surface
112a: surrounding zone
112b: effective lighting district
120: linear light sorurce
122: circuit board
124: light-emitting diode
A: beeline
P: at interval
α: divergence of beam angle
200: the lateral incident type backlight module
210: LGP
212: the top exiting surface
212a: surrounding zone
212b: effective lighting district
214: the side direction incidence surface
216: scattering surface
220: linear light sorurce
222: circuit board
222a: element is provided with the surface
224: light-emitting diode
226,226 ', 226 ", 226 " ': reflector
226a: first reflecting part
226b: second reflecting part
226c, 226c ': assembled portion
226d: opening
300: display panels
310: the viewing area
320: the perimeter circuit district
LCD, LCD ': LCD
L1, L2: development length
R: end reflector plate
S: list structure
The specific embodiment
[first embodiment]
Fig. 2 is the schematic diagram of the LCD of first embodiment of the invention, and Fig. 3 is the schematic top plan view of the backlight module of first embodiment of the invention.Please refer to Fig. 2, the LCD LCD of present embodiment comprises a backlight module 200 and a display panels 300, and wherein display panels 300 is disposed at backlight module 200 tops.In the present embodiment, display panels 300 for example is a penetrate through type liquid crystal display board (transmissive LCD panel) or a semi-penetrating and semi-reflective liquid crystal display panel (transflective LCD panel).
As Fig. 2 and shown in Figure 3, backlight module 200 comprises a LGP 210 and a linear light sorurce 220.LGP 210 has a top exiting surface 212 and a side direction incidence surface 214 that is connected with top exiting surface 212, and top exiting surface 212 comprises a surrounding zone 212a who is connected with side direction incidence surface 214 and an effective lighting district 212b.It is other that linear light sorurce 220 is disposed at side direction incidence surface 214, and linear light sorurce 220 comprises a circuit board 222, a plurality of solid-state light emitting element 224 and a reflector 226.Solid-state light emitting element 224 is disposed on the circuit board 222 and with circuit board 222 and electrically connects, solid-state light emitting element 224 is between circuit board 222 and side direction incidence surface 214, and the light beam that each solid-state light emitting element 224 is provided enters LGP 210 from side direction incidence surface 214, and the surrounding zone 212a of reflector 226 cover parts.In addition, display panels 300 is positioned at top exiting surface 212 tops of LGP 210, display panels 300 has a viewing area 310 and a perimeter circuit district 320, and viewing area 310 is positioned at the effective lighting district 212b top of LGP 210, and 320 in perimeter circuit district is positioned at the surrounding zone 212a top of LGP 210.
As can be seen from Figure 2, except top exiting surface 212 and side direction incidence surface 214, LGP 210 also has a scattering surface 216, and this scattering surface 216 is connected with side direction incidence surface 214, and scattering surface 216 is relative with top exiting surface 212.In the present embodiment, site, V-shaped groove (V-shaped grooves) or other optical microstructures (micro-structures) of for example having particular arrangement density on the scattering surface 216, so that the light that is incident in the LGP 210 from side direction incidence surface 214 is scattered easily, increase the probability of light from 212 outgoing of top exiting surface.In other embodiments of the invention, backlight module 200 optionally is provided with an end reflector plate R in scattering surface 216 belows, fully self-scattering face 216 being left in the part light reflected back LGP 210 of LGP 210, and then promote the light utilization of backlight module 200.
In the present embodiment, solid-state light emitting element 224 for example is a light-emitting diode.With the light-emitting diode is example, and it can be the packaging body of surface adhesion type attitude or the packaging body of other kenels.In addition, the employed light-emitting diode of present embodiment is the light-emitting diode of top light emitting kenel (top emission), and certainly, other embodiment of the present invention also can adopt the light-emitting diode of other kenels.
Hold above-mentioned, reflector 226 comprises a plurality of first reflecting part 226a and a plurality of second reflecting part 226b that are connected between adjacent two the first reflecting part 226a corresponding to solid-state light emitting element 224, each first reflecting part 226a and each second reflecting part 226b are extended towards the direction of effective lighting district 212b by the edge of top exiting surface 212, and the long L1 degree of extension of each first reflecting part 226a is less than the development length L2 of each second reflecting part 226b.For example, the width of the first reflecting part 226a equals the width of solid-state light emitting element 224 in fact, and the width of the second reflecting part 226b equals the interval of any two adjacent solid-state light emitting elements 224 in fact.Certainly, present embodiment also can moderately change the width of the first reflecting part 226a and the second reflecting part 226b, for example, we also can make the width of the first reflecting part 226a be slightly larger than the width of solid-state light emitting element 224, and make the width of the second reflecting part 226b be slightly less than the interval of any two adjacent solid-state light emitting elements 224.
Fig. 2 ' is the schematic diagram of the another kind of LCD of first embodiment of the invention.Please refer to Fig. 2 and Fig. 2 ', the reflector 226 of Fig. 2 ' " similar with the reflector 226 among Fig. 2, only the two main difference part is: reflector 226 is a zigzag at the edge of bending part, and reflector 226 " be linearity at the edge of bending part.
Can know from Fig. 2 and Fig. 3 and to learn that the first reflecting part 226a of reflector 226 and the plane at the second reflecting part 226b place are parallel to the plane at top exiting surface 212 places in fact.In addition, length is lacked (L1) first reflecting part 226a can be in order to covering solid-state light emitting element 224 avoiding light leak, and length grow the second reflecting part 226b of (L2) can be in order to reduce mentioned hot spot in the known technology.In detail, the area that is covered by the first reflecting part 226a compared to surrounding zone 212a, surrounding zone 212a is bigger by the area that the second reflecting part 226b is covered, therefore the second reflecting part 226b can promote the light intensity distribution of institute corresponding region between any two adjacent solid-state light emitting elements 224 effectively, and then suppresses the generation of hot spot.When hot spot is suppressed because of the setting of the second reflecting part 226b, we just can further reduce the beeline A of the light-emitting area of each light-emitting diode 224 to the edge of effective lighting district 212b, just the light-emitting area of light-emitting diode 224 is to the beeline at the edge of viewing area 310, to meet the design requirement of narrow frame easily.
Except the first reflecting part 226a and the second reflecting part 226b, the reflector 226 of present embodiment can further comprise an assembled portion 226c who is connected with linear light sorurce 220, this assembled portion 226c is connected with the first reflecting part 226a and the second reflecting part 226b, and assembled portion 226c has a plurality of opening 226d, and solid-state light emitting element 224 is embedded among the opening 226d of assembled portion 226c.For example, aforesaid assembled portion 226c is fixed on the circuit board 222 by glue material or other modes.
Hold above-mentioned, the reflector 226 of present embodiment for example by a sheet material through cut with bending after form, in other words, the material of the first reflecting part 226a, the second reflecting part 226b and assembled portion 226c is identical; For example, the material of reflector 226 can be white reflection or silver color reflection material.The profile of the first reflecting part 226a, the second reflecting part 226b and assembled portion 226c can cut and bending technique decides via aforesaid.
[second embodiment]
Fig. 4 is the schematic diagram of the LCD of second embodiment of the invention.Please refer to Fig. 4, the LCD LCD ' of present embodiment and the LCD LCD of first embodiment are similar, only the two main difference part is: the reflector 226 ' of present embodiment comprises one first reflecting part 226a, one second reflecting part 226b and an assembled portion 226c ' who is connected with linear light sorurce 220, assembled portion 226c ' is connected with the first reflecting part 226a and the second reflecting part 226b, and assembled portion 226c ' comprises a plurality of list structure S, and each solid-state light emitting element 224 lays respectively between adjacent two list structure S.For example, aforesaid assembled portion 226c ' is fixed on the circuit board 222 by glue material or other modes.
Fig. 4 ' is the schematic diagram of the another kind of LCD of second embodiment of the invention.Please refer to Fig. 4 and Fig. 4 ', the reflector 226 of Fig. 4 ' " ' similar with the reflector 226 ' among Fig. 4, only the two main difference part is: reflector 226 ' is a zigzag at the edge of bending part, and reflector 226 " ' be linearity at the edge of bending part.
Previous embodiment of the present invention adopts the reflector with the first different reflecting part of development length and second reflecting part, and promote distribution of light intensity between any two adjacent solid-state light emitting elements, the hot spot that is produced to improve backlight module effectively effectively by second reflecting part.
Though the present invention with embodiment openly as above; right its is not in order to limit the present invention; those of ordinary skill under any in the technical field; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the protection domain that claim defined of enclosing.
Claims (24)
1. backlight module comprises:
One LGP has a top exiting surface and a side direction incidence surface that is connected with this top exiting surface, and wherein this ejects the light face and comprises a surrounding zone that is connected with this side direction incidence surface and an effective lighting district;
One linear light sorurce is disposed at by this side direction incidence surface, and this linear light sorurce comprises:
One circuit board;
A plurality of solid-state light emitting elements, be disposed on this circuit board and and electrically connect with this circuit board, described a plurality of solid-state light emitting element is between this circuit board and this side direction incidence surface, and the light beam that each described solid-state light emitting element provided enters this LGP from this side direction incidence surface; And
One reflector, this surrounding zone of cover part, this reflector comprises a plurality of first reflecting part and a plurality of second reflecting parts that are connected between adjacent two first reflecting parts corresponding to described a plurality of solid-state light emitting elements, each described first reflecting part and each described second reflecting part are extended towards the direction in this effective lighting district by the edge of this top exiting surface, and the development length of each described first reflecting part is less than the development length of each described second reflecting part.
2. backlight module as claimed in claim 1, wherein this LGP has a scattering surface, and this scattering surface is connected with this side direction incidence surface, and this scattering surface is relative with this top exiting surface.
3. backlight module as claimed in claim 1 also comprises an end reflector plate, is disposed at this scattering surface below.
4. backlight module as claimed in claim 1, wherein this circuit board has an element surface is set, and be provided with on the surface and described a plurality of solid-state light emitting element is disposed at this element, and this element is provided with the surface in fact perpendicular to this top exiting surface.
5. backlight module as claimed in claim 1, wherein this circuit board has an element surface is set, and be provided with on the surface and described a plurality of solid-state light emitting element is disposed at this element, and this element is provided with the surface and is parallel to this side direction incidence surface in fact.
6. backlight module as claimed in claim 1, wherein each described solid-state light emitting element comprises light-emitting diode.
7. backlight module as claimed in claim 1, wherein the width of each described first reflecting part equals the width of described solid-state light emitting element in fact, and the width of each described second reflecting part equals the interval of any two adjacent solid-state light emitting elements in fact.
8. backlight module as claimed in claim 1, wherein said a plurality of first reflecting parts and described a plurality of second reflecting part are parallel to this top exiting surface in fact.
9. backlight module as claimed in claim 1, wherein this reflector also comprises an assembled portion that is connected with this linear light sorurce, this assembled portion is connected with described a plurality of first reflecting parts and described a plurality of second reflecting part, and this assembled portion has a plurality of openings, and described a plurality of solid-state light emitting element is embedded in described a plurality of opening.
10. backlight module as claimed in claim 9, wherein this assembled portion is connected with this circuit board.
11. backlight module as claimed in claim 1, wherein this reflector also comprises an assembled portion that is connected with this linear light sorurce, this assembled portion is connected with described a plurality of first reflecting parts and described a plurality of second reflecting part, and this assembled portion comprises a plurality of list structures, and each described solid-state light emitting element lays respectively between adjacent two list structures.
12. backlight module as claimed in claim 11, wherein said a plurality of list structures are connected with this circuit board.
13. a LCD comprises:
One backlight module as claimed in claim 1; And
One display panels is disposed at this exiting surface top, top, and wherein this display panels has a viewing area and a perimeter circuit district, and this viewing area is positioned at this top, effective lighting district, and this perimeter circuit district is positioned at this top, surrounding zone.
14. LCD as claimed in claim 13, wherein this LGP has a scattering surface, and this scattering surface is connected with this side direction incidence surface, and this scattering surface is relative with this top exiting surface.
15. LCD as claimed in claim 13, wherein this backlight module also comprises an end reflector plate, is disposed at this scattering surface below.
16. LCD as claimed in claim 13, wherein this circuit board has an element surface is set, and be provided with on the surface and described a plurality of solid-state light emitting element is disposed at this element, and this element is provided with the surface in fact perpendicular to this top exiting surface.
17. LCD as claimed in claim 13, wherein this circuit board has an element surface is set, and be provided with on the surface and described a plurality of solid-state light emitting element is disposed at this element, and this element is provided with the surface and is parallel to this side direction incidence surface in fact.
18. LCD as claimed in claim 13, wherein each described solid-state light emitting element comprises light-emitting diode.
19. LCD as claimed in claim 13, wherein the width of each described first reflecting part equals the width of described solid-state light emitting element in fact, and the width of each described second reflecting part equals the interval of any two adjacent solid-state light emitting elements in fact.
20. LCD as claimed in claim 13, wherein said a plurality of first reflecting parts and described a plurality of second reflecting part are parallel to this top exiting surface in fact.
21. LCD as claimed in claim 13, wherein this reflector also comprises an assembled portion that is connected with this linear light sorurce, this assembled portion is connected with described a plurality of first reflecting parts and described a plurality of second reflecting part, and this assembled portion has a plurality of openings, and described a plurality of solid-state light emitting element is embedded in described a plurality of opening.
22. LCD as claimed in claim 21, wherein this assembled portion is connected with this circuit board.
23. LCD as claimed in claim 13, wherein this reflector also comprises an assembled portion that is connected with this linear light sorurce, this assembled portion is connected with described a plurality of first reflecting parts and described a plurality of second reflecting part, and this assembled portion comprises a plurality of list structures, and each described solid-state light emitting element lays respectively between adjacent two list structures.
24. LCD as claimed in claim 23, wherein said a plurality of list structures are connected with this circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105303962A CN102080789B (en) | 2010-10-28 | 2010-10-28 | Liquid crystal display and backlight module thereof |
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| CN2010105303962A CN102080789B (en) | 2010-10-28 | 2010-10-28 | Liquid crystal display and backlight module thereof |
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| CN102080789A true CN102080789A (en) | 2011-06-01 |
| CN102080789B CN102080789B (en) | 2012-08-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102980102A (en) * | 2012-11-28 | 2013-03-20 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2013075354A1 (en) * | 2011-11-21 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN104296002A (en) * | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN104534304A (en) * | 2014-12-03 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN104848088A (en) * | 2015-05-13 | 2015-08-19 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| WO2019119891A1 (en) * | 2017-12-21 | 2019-06-27 | 惠科股份有限公司 | Display apparatus and backlight module thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807674A (en) | 2014-01-27 | 2014-05-21 | 北京京东方显示技术有限公司 | Backlight module and display device |
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| CN1922436A (en) * | 2004-02-27 | 2007-02-28 | 美蓓亚株式会社 | Planar illuminator |
| US20100238684A1 (en) * | 2009-03-19 | 2010-09-23 | Advanced Optoelectronic Technology, Inc. | Backlight module |
| CN101956926A (en) * | 2009-07-16 | 2011-01-26 | 瀚宇彩晶股份有限公司 | Backlight module of LCD |
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| CN1922436A (en) * | 2004-02-27 | 2007-02-28 | 美蓓亚株式会社 | Planar illuminator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013075354A1 (en) * | 2011-11-21 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN102980102A (en) * | 2012-11-28 | 2013-03-20 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN104296002A (en) * | 2014-09-17 | 2015-01-21 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using same |
| CN104534304A (en) * | 2014-12-03 | 2015-04-22 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| US9910204B2 (en) | 2014-12-03 | 2018-03-06 | Shenzhen China Star Optoelectronics Technology Co, Ltd. | Backlight module and liquid crystal display |
| CN104848088A (en) * | 2015-05-13 | 2015-08-19 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display |
| WO2019119891A1 (en) * | 2017-12-21 | 2019-06-27 | 惠科股份有限公司 | Display apparatus and backlight module thereof |
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| Publication number | Publication date |
|---|---|
| CN102080789B (en) | 2012-08-15 |
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