CN102235620B - LCD device and backlight module thereof - Google Patents
LCD device and backlight module thereof Download PDFInfo
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- CN102235620B CN102235620B CN201010170510.5A CN201010170510A CN102235620B CN 102235620 B CN102235620 B CN 102235620B CN 201010170510 A CN201010170510 A CN 201010170510A CN 102235620 B CN102235620 B CN 102235620B
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- joint portion
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Abstract
A kind of display equipment includes display floater, circuit board and backlight module.First end of this circuit board is connected to this display floater.This backlight module includes shell on the back, light guide plate, light-emitting component and framework.The bottom surface of second this shell on the back of end in contact of this circuit board.This light guide plate is configured in this shell on the back.This light-emitting component is fixedly arranged on this circuit board.Second joint portion of this light-emitting component is sticked in the first joint portion of this shell on the back.This framework is in order to support this display floater, and combines with this shell on the back, thus this framework, this light guide plate and this shell on the back is combined.
Description
Technical field
The present invention relates to a kind of display equipment, particularly relate to a kind of display equipment, its by the snap fit of first and second joint portion and seize part on both sides by the arms seize mode on both sides by the arms, can strengthen being fixed on this shell on the back by light-emitting component.
Background technology
Along with the progress of electronics technology, accompanied electronic product is prevailing especially in daily life, and the demand for display compact, that power consumption is low increases day by day.LCD device owing to having that power consumption is low, caloric value is few, the advantage of lightweight and non-light emitting type display device etc., be often used in this type of electronic product, even progressively replaced traditional cathode ray tube display.
With reference to Fig. 1, the LCD device 10 of prior art mainly includes front frame 12, display panels 14 and backlight module 20.This display panels 14 has liquid crystal layer (not shown) and is arranged between a pair upper and lower base plate (not shown), in order to show image.This backlight module 20 is in order to provide light source to enter this display panels 14, and is bonded to each other with this front frame 12 and this display panels 14 and backlight module 20 are combined into this LCD device 10.The LCD device 10 of prior art also includes printed circuit board (PCB) (PCB) 16 or flexible electric circuit board (FPC), in order to control and driving signal are delivered to this display panels 14.
At present owing to light emitting diode (LED) light source is first-selected for light source of future generation and has plurality of advantages, such as there is the characteristic of power saving, therefore can be widely used in the backlight module of LCD device.
With reference to Fig. 2, this backlight module 20 includes shell on the back (housing) 32, light guide plate 22, light-emitting diode light bar 24, reflector plate 28, optical diaphragm group 30 and framework (frame) 34.This shell on the back 32 is in order to hold this light guide plate 22, and includes four side plate 42 and base plates 44, and four side plates 42 are connected to four limits of base plate 44.This light guide plate 22 is configured in this shell on the back 32, that is light guide plate 22 is configured on the base plate 44 of this shell on the back 32.This light-emitting diode light bar (LEDlightbar) 24 includes a multiple LED source 24a and circuit board 24b.These LED sources 24a is configured on the side plate 42 of this shell on the back 32.This reflector plate 28 is configured between this light guide plate 22 and base plate 44.This optical diaphragm group 30, such as multiple diffusion sheets or prismatic lens, be configured on this light guide plate 22.This framework 34 combines with shell on the back 32, in order to this light guide plate 22, light-emitting diode light bar 24, reflector plate 28 and optical diaphragm group 30 to be fixed between this shell on the back 32 and framework 34.
With reference to Fig. 3, the generalized section of the LCD device 10 after the assembling of its display Fig. 1.Owing to the control signal needed for this LED source 24a by this circuit board 24b input, but not by the printed circuit board (PCB) 16 of this display panels 14, therefore must will increase the cost of circuit board.
Accordingly, it is desirable to provide a kind of display equipment, it is possible to solve aforesaid problem.
Summary of the invention
The present invention provides a kind of display equipment to include display floater, circuit board and backlight module.This circuit board has the first end and the second end, and this first end is connected to this display floater.This backlight module includes shell on the back, light guide plate, at least one light-emitting component.This shell on the back includes a base plate and the first joint portion, and wherein said base plate is provided with opening, the bottom surface of the base plate of second this shell on the back of end in contact of this circuit board.This light guide plate is configured in this shell on the back.This at least one light-emitting component is fixedly arranged on the surface of this circuit board, control signal needed for making light-emitting component can be inputted by described circuit board, and include the second joint portion, this second joint portion is sticked in the first joint portion of this shell on the back, make the described opening on described at least one light-emitting component described base plate of traverse, being engaged in described backlight module by outside, wherein the light-emitting area of this light-emitting component points to the incidence surface of this light guide plate.
Preferably, this backlight module also includes framework, and this framework is in order to support this display floater, and combines with this shell on the back, thus this framework, this light guide plate and this shell on the back is combined.
Owing to the control signal needed for the light-emitting component of the present invention by the circuit board input identical with display panels, can be not necessary to be inputted by another additional circuit plate, therefore can reduce the cost of circuit board.Furthermore, by the snap fit of first and second joint portion of the present invention, this light-emitting component can be fixed on this shell on the back.It addition, by the present invention seize part on both sides by the arms seize mode on both sides by the arms, can strengthen being fixed on this shell on the back by this light-emitting component.
In order to allow, the present invention is above-mentioned can be become apparent from other purpose, feature and advantage, hereafter will coordinate accompanying drawing, and be described in detail below.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the LCD device of prior art；
Fig. 2 is the perspective exploded view of the backlight module of prior art；
Fig. 3 is the enlarged local section schematic diagram of the LCD device after the assembling of prior art；
Fig. 4 is the perspective exploded view of the LCD device of one embodiment of the invention；
Fig. 5 is the perspective exploded view of the backlight module of this embodiment of the present invention；
Fig. 6 is a floor map, the relative position between shell on the back and the light guide plate of this embodiment of the present invention of its display Fig. 5；
Fig. 7 is the enlarged local section schematic diagram of the LCD device after the present invention assembles；
Fig. 8 is a floor map, the shell on the back of this embodiment of the present invention, relative position between light guide plate and light-emitting component in its display Fig. 7；
Fig. 9 is a floor map, the shell on the back of another embodiment of the present invention, relative position between light guide plate and light-emitting component in its display Fig. 7；And
Figure 10 is a floor map, the shell on the back of further embodiment of this invention, relative position between light guide plate and light-emitting component in its display Fig. 7.
[main element symbol description]
Frame before 10 LCD devices 12
14 liquid crystal panel 16 printed circuit board (PCB)s
20 backlight module 22 light guide plates
24 light-emitting diode light bar 24a LED sources
24b circuit board 28 reflector plate
30 optical diaphragm group 32 shell on the backs
34 framework 42 side plates
44 base plates
Frame before 110 LCD devices 112
114 liquid crystal panel 116 circuit boards
120 backlight module 122 light guide plates
123 incidence surface 124 light-emitting components
128 reflector plates
130 optical diaphragm group 132 shell on the backs
134 framework 142 side plates
144 base plate 145 openings
146 bottom surfaces
152 first end 154 second ends
162 first joint portion 164 protuberances
166 light-emitting component rest area 168 recesses
172 second joint portion 174 recesses
176 light-emitting area 178 protuberances
180 seize part on both sides by the arms
Detailed description of the invention
With reference to Fig. 4, the display equipment (such as LCD device 110) of its display one embodiment of the invention.This LCD device 110 includes front frame 112, display floater (such as display panels 114) and backlight module 120.This display panels 114 has liquid crystal layer (not shown) and is arranged between a pair upper and lower base plate (not shown), in order to show image.This backlight module 120 is in order to provide light source to enter this display panels 114, and is bonded to each other with this front frame 112 and this display panels 114 and backlight module 120 are combined into this LCD device 110.This circuit board 116, such as printed circuit board (PCB) (PCB) or flexible electric circuit board (FPC), in order to be delivered to this display panels 114 by control and driving signal.This circuit board 116 has the first end 152 and the second end 154, and this first end 152 is connected to this display panels 114.At least one light-emitting component 124 is fixedly arranged on the surface of this circuit board 116.This light-emitting component 124 can be light emitting diode (LED) light source.
With reference to Fig. 5, this backlight module 120 includes shell on the back (housing) 132, light guide plate 122, reflector plate 128, optical diaphragm group 130 and framework (frame) 134.This shell on the back 132 includes four side plate 142 and base plates 144, and four side plates 142 are connected to four limits of base plate 144.This light guide plate 122 is configured in this shell on the back 132, that is light guide plate 122 is configured on the base plate 144 of this shell on the back 132.This reflector plate 128 is configured between this light guide plate 122 and base plate 144.This optical diaphragm group 130, such as multiple diffusion sheets or prismatic lens, be configured on this light guide plate 122.This framework is in order to support this display floater, and combines with this shell on the back 132, thus this framework 134, this light guide plate 122, reflector plate 128, optical diaphragm group 130 and this shell on the back 132 is combined.
Fig. 6 is a floor map, the relative position between shell on the back 132 and the light guide plate 122 of its display Fig. 5.This shell on the back 132 also includes the first joint portion 162, and it is positioned at light-emitting component rest area 166.In the present embodiment, this first joint portion 162 includes at least one protuberance 164.This base plate 144 is provided with opening 145, and it corresponds to this light-emitting component rest area 166.
With reference to Fig. 7, the generalized section of the LCD device 110 after the assembling of its display Fig. 4.Second end 154 of this circuit board 116 contacts the bottom surface 146 of this shell on the back 132, that is a part for this circuit board 116 after assembling can be folded to the bottom surface 146 of this shell on the back 132.This light-emitting component 124 is positioned at the surface of this circuit board 116, and includes the second joint portion 172.This light-emitting component 124 after assembling can through this opening 145, and this second joint portion 172 is sticked in the first joint portion 162 of this shell on the back 132, thus this light-emitting component 124 is fixed on the light-emitting component rest area 166 of this shell on the back 132, is also fixed on the surface of the side plate 142 of this shell on the back 132 by this light-emitting component 124.The light-emitting area 176 of this light-emitting component 124 points to the incidence surface 123 of this light guide plate 122.Specifically, this light-emitting component 124 is engaged in this backlight module 120 by the present invention by outside, can omit the circuit board of light-emitting diode light bar on the backlight module of prior art, can reduce product cost thus.
In the present embodiment, Fig. 8 is a floor map, its display shell on the back 132 of Fig. 7, relative position between light guide plate 122 and light-emitting component 124.Second joint portion 172 of this light-emitting component 124 includes at least one recess 174, and this recess 174 is sticked in this protuberance 164, thus this light-emitting component 124 is fixed on this light-emitting component rest area 166.The volume of this protuberance 164 generally can be equal to the volume of this recess 174.This second joint portion 172 can be sticked in this first joint portion 162 by upper and lower stacked manner.This protuberance 164 can be that rectangular block shape, circular block shape or cross are block.This second joint portion 172 can be slipped into mode by left and right and be sticked in this first joint portion 162.The section of this protuberance 164 can be dovetail (dovetail), rectangle or trapezoidal profile.
In another embodiment, Fig. 9 is a floor map, its display shell on the back 132 of Fig. 7, relative position between light guide plate 122 and light-emitting component 124.First joint portion 162 of this shell on the back 132 includes at least one recess 168, second joint portion 172 of this light-emitting component 124 includes at least one protuberance 178, and this protuberance 178 is sticked in this recess 168, thus this light-emitting component 124 is fixed on this light-emitting component rest area 166.The volume of this protuberance 178 generally can be equal to the volume of this recess 168.
In another embodiment, Figure 10 is a floor map, its display shell on the back 132 of Fig. 7, relative position between light guide plate 122 and light-emitting component 124.This shell on the back 132 also includes seizing part 180 on both sides by the arms, such as two spring leaf, and it is positioned at this light-emitting component rest area 166, strengthens in order to seize on both sides by the arms fixing this light-emitting component 124.
Owing to the control signal needed for the light-emitting component of the present invention by the circuit board input identical with display panels, can be not necessary to be inputted by another additional circuit plate, therefore can reduce the cost of circuit board.Furthermore, by the snap fit of first and second joint portion of the present invention, this light-emitting component can be fixed on this shell on the back.It addition, by the present invention seize part on both sides by the arms seize mode on both sides by the arms, can strengthen being fixed on this shell on the back by this light-emitting component.
Although the present invention discloses with previous embodiment, so it is not limited to the present invention, and any general technical staff of the technical field of the invention, without departing from the spirit and scope of the present invention, when making various modification and amendment.Therefore protection scope of the present invention should be as the criterion with scope of the claims.
Claims (22)
1. a backlight module, it is applied to display equipment, and described display equipment includes display floater and circuit board, and described circuit board has the first end and the second end, and described first end is connected to described display floater, and described backlight module includes:
Shell on the back, including a base plate and the first joint portion, wherein said base plate is provided with opening, the bottom surface of the base plate of shell on the back described in the second end in contact of described circuit board；
Light guide plate, is configured in described shell on the back；And
At least one light-emitting component, it is fixedly arranged on the surface of described circuit board, control signal needed for making light-emitting component can be inputted by described circuit board, and include the second joint portion, described second joint portion is sticked in described first joint portion, making at least one light-emitting component described through the described opening on described base plate, outside be engaged in described backlight module, the light-emitting area of wherein said light-emitting component points to the incidence surface of described light guide plate.
2. backlight module according to claim 1, also includes framework, in order to support described display floater, and combines with described shell on the back, thus described framework, described light guide plate and described shell on the back is combined.
3. backlight module according to claim 1, wherein said first joint portion includes at least one protuberance, and described second joint portion includes at least one recess, and described protuberance is sticked in described recess.
4. backlight module according to claim 1, wherein said first joint portion includes at least one recess, and described second joint portion includes at least one protuberance, and described protuberance is sticked in described recess.
5. the backlight module according to claim 3 or 4, the volume of wherein said protuberance is essentially equal to the volume of described recess.
6. the backlight module according to claim 3 or 4, wherein said second joint portion is sticked in described first joint portion by upper and lower stacked manner.
7. backlight module according to claim 6, wherein said protuberance is one of them of rectangular block shape, circular block shape or cross bulk.
8. the backlight module according to claim 3 or 4, wherein said second joint portion is slipped into mode by left and right and is sticked in described first joint portion.
9. backlight module according to claim 8, the section of wherein said protuberance is one of them of dovetail, rectangle or trapezoidal profile.
10. backlight module according to claim 1, wherein said shell on the back also includes seizing part on both sides by the arms, in order to seize fixing described light-emitting component on both sides by the arms.
11. backlight module according to claim 1, wherein said light-emitting component is LED source.
12. a display equipment, including:
Display floater；
Circuit board, has the first end and the second end, and described first end is connected to described display floater；And
Backlight module, including:
Shell on the back, including a base plate and the first joint portion, wherein said base plate is provided with opening, the bottom surface of the base plate of shell on the back described in the second end in contact of described circuit board；
Light guide plate, is configured in described shell on the back；And
At least one light-emitting component, it is fixedly arranged on the surface of described circuit board, control signal needed for making light-emitting component can be inputted by described circuit board, and include the second joint portion, described second joint portion is sticked in the first joint portion of described shell on the back, making at least one light-emitting component described through the described opening on described base plate, outside be engaged in described backlight module, the light-emitting area of wherein said light-emitting component points to the incidence surface of described light guide plate.
13. display equipment according to claim 12, wherein said backlight module includes framework, in order to support described display floater, and combines with described shell on the back, thus described framework, described light guide plate and described shell on the back is combined.
14. display equipment according to claim 12, wherein said first joint portion includes at least one protuberance, and described second joint portion includes at least one recess, and described protuberance is sticked in described recess.
15. display equipment according to claim 12, wherein said first joint portion includes at least one recess, and described second joint portion includes at least one protuberance, and described protuberance is sticked in described recess.
16. the display equipment according to claims 14 or 15, the volume of wherein said protuberance is essentially equal to the volume of described recess.
17. the display equipment according to claims 14 or 15, wherein said second joint portion is sticked in described first joint portion by upper and lower stacked manner.
18. display equipment according to claim 17, wherein these protuberances are that rectangular block shape, circular block shape or cross are block.
19. the display equipment according to claims 14 or 15, wherein said second joint portion is slipped into mode by left and right and is sticked in described first joint portion.
20. display equipment according to claim 19, the section of wherein said protuberance is one of them of dovetail, rectangle or trapezoidal profile.
21. display equipment according to claim 12, wherein said shell on the back also includes seizing part on both sides by the arms, in order to seize fixing described light-emitting component on both sides by the arms.
22. display equipment according to claim 12, wherein said light-emitting component is LED source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170510.5A CN102235620B (en) | 2010-04-30 | 2010-04-30 | LCD device and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170510.5A CN102235620B (en) | 2010-04-30 | 2010-04-30 | LCD device and backlight module thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102235620A CN102235620A (en) | 2011-11-09 |
| CN102235620B true CN102235620B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010170510.5A Active CN102235620B (en) | 2010-04-30 | 2010-04-30 | LCD device and backlight module thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8870440B2 (en) | 2012-03-30 | 2014-10-28 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Back light module and liquid crystal display device having the same |
| CN102620210A (en) * | 2012-03-30 | 2012-08-01 | 深圳市华星光电技术有限公司 | LCD (Liquid Crystal Display) device and backlight module thereof |
| CN102661550B (en) * | 2012-05-09 | 2014-06-25 | 深圳市华星光电技术有限公司 | Backlight module |
| CN105674147A (en) * | 2016-01-14 | 2016-06-15 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN106373500B (en) * | 2016-11-04 | 2023-05-30 | 上海控易电子科技有限公司 | Liquid crystal display screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063756A (en) * | 2006-04-29 | 2007-10-31 | 胜华科技股份有限公司 | Optical displaying module with heat sinking structure |
| CN101526185A (en) * | 2009-04-22 | 2009-09-09 | 上海广电光电子有限公司 | LED backlight module |
| CN101526199A (en) * | 2008-03-04 | 2009-09-09 | 瀚宇彩晶股份有限公司 | Backlight module and light-emitting device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060132202A (en) * | 2005-06-17 | 2006-12-21 | 삼성전자주식회사 | Liquid crystal display apparatus |
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2010
- 2010-04-30 CN CN201010170510.5A patent/CN102235620B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063756A (en) * | 2006-04-29 | 2007-10-31 | 胜华科技股份有限公司 | Optical displaying module with heat sinking structure |
| CN101526199A (en) * | 2008-03-04 | 2009-09-09 | 瀚宇彩晶股份有限公司 | Backlight module and light-emitting device thereof |
| CN101526185A (en) * | 2009-04-22 | 2009-09-09 | 上海广电光电子有限公司 | LED backlight module |
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| Publication number | Publication date |
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| CN102235620A (en) | 2011-11-09 |
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