CN201373307Y - Luminous device and backlight module - Google Patents
Luminous device and backlight module Download PDFInfo
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- CN201373307Y CN201373307Y CN200920009429U CN200920009429U CN201373307Y CN 201373307 Y CN201373307 Y CN 201373307Y CN 200920009429 U CN200920009429 U CN 200920009429U CN 200920009429 U CN200920009429 U CN 200920009429U CN 201373307 Y CN201373307 Y CN 201373307Y
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Abstract
The utility model provides a luminous device and a backlight module, wherein the backlight module comprises the luminous device and a diffuser plate, and the luminous device is arranged on the side of the light incoming surface of the diffuser plate. The luminous device comprises a plurality of light rows, wherein each light row comprises a first light group and a second light group, the first light group comprises a plurality of first lights connected in series, and the second light group comprises a plurality of second lights connected in series; the luminous device is characterized in that in each light row, at least one of the lights adjacent to the first light is the second light. The luminous device can produce a relatively excellent visual effect.
Description
Technical field
The utility model relates to a kind of light-emitting device, and is particularly related to a kind of light-emitting device that is used for backlight module.
Background technology
In general, LCD comprises a liquid crystal panel and a backlight module.Liquid crystal panel comprises a membrane transistor substrate, an optical filter and a liquid crystal layer, and wherein liquid crystal layer is between membrane transistor substrate and optical filter.The arrangement meeting of liquid crystal layer changes because of the voltage that is applied to liquid crystal layer, because liquid crystal layer does not produce the light source of himself, so LCD needs backlight module.
Backlight module comprises light source, LGP, reflecting plate, brightness enhancement film and carrying container.Wherein, above-mentioned light source emits beam, and LGP guides to the light that light source produced in the liquid crystal panel.Reflecting plate is the below that is positioned light source, and the part light that light source produced is reflected plate reflection back towards liquid crystal panel incident.Brightness enhancement film has the function of optically focused, when the user when the frontal of liquid crystal panel is watched, the brightness meeting increases because of the cause of brightness enhancement film.In addition, carrying container is then carrying above-mentioned light source, LGP, reflecting plate and brightness enhancement film.
In early days, the light source that is used in the backlight module is the cold cathode fluorescent lamp pipe, but along with the manufacturing technology of LED lamp is more and more ripe, uses the backlight module of LED lamp also more and more many.Please refer to Figure 1A, Figure 1A illustrate lists intention for the LED lamp bank that is positioned over the light source in the backlight liquid crystal display module.In backlight module, its light source is arranged by a plurality of LED lamp row 10 to form, and each LED lamp row 10 then is made of with 12 of last lamp groups following lamp group 11, and lamp group 11 is made of with a plurality of LED lamp 121 a plurality of LED lamps 111 with last lamp group 12 down.Wherein, lamp group 11 all is connected to a control IC 13 with last lamp group 12 under each, and lamp group 11 and last lamp group's 12 point went out under this control IC 13 can be used for.
By Figure 1A as can be known, because lamp group 11 is connected in series with a plurality of LED lamp 121 by a plurality of LED lamps 111 with last lamp group 12 down, therefore if as long as one of them LED lamp 111,121 fault just may cause down lamp group 11 or go up lamp group 12 to present the state that opens circuit.Please refer to Figure 1B, Figure 1B illustrate for wherein on one the lamp group present view when opening circuit.In last lamp group 12, one of them LED lamp 121 fault just can cause the whole lamp group 12 of going up to be lighted, and presents the dark space of a strip.So,, just can feel the existence of this strip dark space as usage charges person during in the display frame of watching LCD, and the mood that influence is watched.Therefore, how solving the above problems is to be worth this area to have to know that usually the knowledgeable goes to consider ground.
Summary of the invention
The utility model main purpose provides a kind of light-emitting device and backlight module, and under the situation of a lamp failure, the consumer can not feel that more its whole brightness descends to this light-emitting device therein.
In order to reach above-mentioned purpose and other purposes, the utility model provides a kind of light-emitting device, it comprises a plurality of lamp row, each lamp row comprises one first lamp group and one second lamp group, the described first lamp group comprises a plurality of first lamps that are in series, and the described second lamp group comprises a plurality of second lamps that are in series, and described light-emitting device is characterised in that: in each lamp row, having a lamp in the lamp adjacent with described first lamp at least is described second lamp.
In above-mentioned light-emitting device, the kenel of lamp is the LED lamp.
In above-mentioned light-emitting device, the shared earth connection of the first lamp group and the second lamp group.
In above-mentioned light-emitting device, the lamp row more comprise one the 3rd lamp group, and described the 3rd lamp group comprises a plurality of the 3rd lamps that are in series, and in each lamp row, described second lamp is to be positioned between described first lamp and described the 3rd lamp.
In order to reach above-mentioned purpose and other purposes, the utility model provides a kind of backlight module, and this backlight module comprises a diffuser plate and above-mentioned light-emitting device, and this light-emitting device is configured in the incidence surface side of diffuser plate.
In above-mentioned backlight module, the exiting surface side of diffuser plate disposes a diffusion barrier.
In above-mentioned backlight module, the exiting surface side of diffusion barrier disposes a brightness enhancement film.
The beneficial effects of the utility model are: because in light-emitting device of the present utility model, each lamp row comprises a plurality of lamp groups, and wherein a lamp group lamp and other lamps group's lamp is to be staggered to arrange, therefore when a lamp group fault wherein, formed dark space just is distributed in distance, and human intrinsic illusion can allow the user be difficult for perceiving described dark space.Also therefore, light-emitting device of the present utility model can present better visual effect.
Be familiar with this skill personage and understand the purpose of this utility model, feature and effect for making, now by following specific embodiment, and cooperate appended graphic, to the utility model illustrate in detail as after.
Description of drawings
Figure 1A illustrate lists intention for the LED lamp bank that is positioned over the light source in the backlight liquid crystal display module;
Figure 1B illustrate for wherein on one the lamp group present view when opening circuit;
Fig. 2 illustrate is the backlight module of first embodiment of the present utility model;
Fig. 3 A illustrate is the light-emitting device of first embodiment of the present utility model;
It is among first embodiment that Fig. 3 B illustrates, and the first lamp group presents the view when opening circuit;
Fig. 4 illustrate is the light-emitting device of second embodiment of the present utility model;
Fig. 5 illustrate is the lamp row of the 3rd embodiment of the present utility model.
Description of reference numerals: 10-LED lamp row; Lamp group under the 11-; 111,121-LED lamp; The last lamp group of 12-; 13-controls IC; The 1-backlight module; The 2-light-emitting device; 20,30-lamp row; 21, the 31-first lamp group; 211,311-second lamp; 22, the 32-second lamp group; 221,321-second lamp; 23-controls IC; 231,231 ', 232-earth connection; 33-the 3rd lamp group; 331-the 3rd lamp; The 4-diffuser plate; The 5-diffusion barrier; The 6-brightness enhancement film.
The specific embodiment
Fig. 2 illustrate is the backlight module of first embodiment of the present utility model.This backlight module 1 comprises a light-emitting device 2, a diffuser plate 4, a diffusion barrier 5 and a brightness enhancement film 6, and wherein light-emitting device 2 is in order to light source to be provided, and it is the incidence surface side that is configured in diffuser plate 4.Diffuser plate 4 is made by the macromolecule light-transmitting materials, and described macromolecule light-transmitting materials for example is polymethyl methacrylate (Polymethylmethacrylate abbreviates PMMA as) or polystyrene (PolyStyrene abbreviates PS as).In addition, the inside of diffuser plate 4 also is doped with the light diffusion particle, in order to reach the effect of light diffusion.Diffusion barrier 5 is configured in the exiting surface side of diffuser plate 4, and it is the diffusion effect that is used for increasing further light.In addition, brightness enhancement film 6 is configured in the exiting surface side of diffusion barrier 5, then is provided with a plurality of water chestnut mirror units 61 on it, is used to make the brightness of view directions to increase.Below, will do more detailed introduction to light-emitting device 2.
Please refer to Fig. 3 A, Fig. 3 A illustrate is the light-emitting device of first embodiment of the present utility model.This light-emitting device 2 comprises a plurality of lamp row 20, and these lamp row 20 comprise one first lamp group 21 and one second lamp group 22.Wherein, the first lamp group 21 comprises that a plurality of first lamp, 211, the second lamp groups 22 that are in series then comprise a plurality of second lamps 221 that are in series, and the first above-mentioned lamp 211 and second lamp 221 for example are the LED lamp.Wherein, the first lamp group 21 and the second lamp group 22 all are electrically connected to a control IC 23, and the point that this control IC 23 can be used for the first lamp group 21 and the second lamp group 22 goes out.By Fig. 2 A as can be known, in each lamp row 20, the lamp adjacent with first lamp 211 is second lamp 221, and also promptly: except first lamp 211 that is arranged in caudal end, other first lamp 211 is to be configured in the middle of two second lamps 221.
Please refer to Fig. 3 B, it is among first embodiment that Fig. 3 B illustrates, and the first lamp group presents the view when opening circuit.In the first lamp group 21, because first lamp 211 is to be one another in series together, so, will first whole among the first lamp group 21 lamps 211 all can't be lighted if wherein one first lamp 211 breaks down.Yet because first lamp 211 is to be configured between two second lamps 221, under the situation that second lamp 221 is still lighted, the dark space presents and is spaced, and human intrinsic illusion can allow the user be difficult for perceiving described dark space.Therefore, compared to prior art, a lamp presents under the situation of fault therein, uses the LCD of light-emitting device 2 of the present utility model that preferable visual experience can be provided.
Please be simultaneously with reference to Fig. 3 A and Fig. 4, Fig. 4 illustrate is the light-emitting device of second embodiment of the present utility model.In Fig. 4, will be marked with identical symbol with components identical among Fig. 3 A, and repeat no more.In Fig. 3 A, the first lamp group 21 is connected to earth connection 231, the second lamp groups 22 to be connected to earth connection 232.Yet as shown in Figure 4, this area has knows that usually the knowledgeable also can all be connected to same earth connection 231 ' with the first lamp group 21 and the second lamp group 22.
Be noted that though the light-emitting device in the above embodiments is to be used in the backlight module, this area has knows that usually the knowledgeable also can be applied in it in other device.And the lamp among the lamp group also is not limited to LED, also can be the lamp source of other kenels, for example: miniature bulb.
In addition, in above-mentioned two embodiment, each lamp row 20 has included only the first lamp group 21 and the second lamp group 22, but this area has and knows that usually the knowledgeable should understand the lamp group that also can comprise other in lamp row.Please refer to Fig. 5, Fig. 5 illustrate is the lamp row of the 3rd embodiment of the present utility model, and these lamp row 30 also comprise one the 3rd lamp group 33 except the first lamp group 31 and the second lamp group 32.Wherein, first lamp 311 among the first lamp group 31, second lamp 321 among the second lamp group 32 and the 3rd lamp 331 among the 3rd lamp group 33 are from top to bottom to arrange in regular turn, that is: second lamp 321 is between first lamp 311 and the 3rd lamp 331.
In sum, because in light-emitting device of the present utility model, each lamp row comprises a plurality of lamp groups, and wherein a lamp group lamp and other lamps group's lamp is to be staggered to arrange, therefore when a lamp group fault wherein, formed dark space just is distributed in distance, and human intrinsic illusion can allow the user be difficult for perceiving described dark space.Also therefore, light-emitting device of the present utility model can present better visual effect.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.
Claims (10)
1. light-emitting device comprises a plurality of lamps row, and each lamp row comprises one first lamp group and one second lamp group, and the described first lamp group comprises a plurality of first lamps that are in series, and the described second lamp group comprises a plurality of second lamps that are in series, and it is characterized in that:
In each lamp row, having a lamp in the lamp adjacent with described first lamp at least is described second lamp.
2. light-emitting device according to claim 1 is characterized in that, the kenel of described lamp is the LED lamp.
3. light-emitting device according to claim 1 is characterized in that, described first lamp group and the shared earth connection of the described second lamp group.
4. light-emitting device according to claim 1 is characterized in that, described lamp row more comprise one the 3rd lamp group, and described the 3rd lamp group comprises a plurality of the 3rd lamps that are in series, and in each lamp row, described second lamp is to be positioned between described first lamp and described the 3rd lamp.
5. backlight module comprises:
One diffuser plate; And
One light-emitting device, be configured in the incidence surface side of described diffuser plate, described light-emitting device comprises a plurality of lamp row, each lamp row comprises one first lamp group and one second lamp group, the described first lamp group comprises a plurality of first lamps that are in series, and the described second lamp group comprises a plurality of second lamps that are in series, and it is characterized in that: in each lamp row, having a lamp in the lamp adjacent with described first lamp at least is described second lamp.
6. backlight module according to claim 5 is characterized in that, the kenel of described lamp is the LED lamp.
7. backlight module according to claim 5 is characterized in that, described first lamp group and the shared earth connection of the described second lamp group.
8. backlight module according to claim 5 is characterized in that, described lamp row more comprise one the 3rd lamp group, and described the 3rd lamp group comprises a plurality of the 3rd lamps that are in series, and in each lamp row, described second lamp is to be positioned between described first lamp and described the 3rd lamp.
9. backlight module according to claim 5 is characterized in that, the exiting surface side of described diffuser plate disposes a diffusion barrier.
10. backlight module according to claim 9 is characterized in that, the exiting surface side of described diffusion barrier disposes a brightness enhancement film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920009429U CN201373307Y (en) | 2009-03-27 | 2009-03-27 | Luminous device and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920009429U CN201373307Y (en) | 2009-03-27 | 2009-03-27 | Luminous device and backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373307Y true CN201373307Y (en) | 2009-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920009429U Expired - Fee Related CN201373307Y (en) | 2009-03-27 | 2009-03-27 | Luminous device and backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373307Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012022066A1 (en) * | 2010-08-20 | 2012-02-23 | 深圳市华星光电技术有限公司 | Led back light module |
| CN111951739A (en) * | 2020-08-05 | 2020-11-17 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN113433735A (en) * | 2021-06-29 | 2021-09-24 | 上海摩软通讯技术有限公司 | Backlight module, backlight plate, display screen and electronic equipment |
-
2009
- 2009-03-27 CN CN200920009429U patent/CN201373307Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012022066A1 (en) * | 2010-08-20 | 2012-02-23 | 深圳市华星光电技术有限公司 | Led back light module |
| CN111951739A (en) * | 2020-08-05 | 2020-11-17 | Tcl华星光电技术有限公司 | Backlight module and display device |
| CN113433735A (en) * | 2021-06-29 | 2021-09-24 | 上海摩软通讯技术有限公司 | Backlight module, backlight plate, display screen and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20120327 |