CN202065832U - Sidelight type backlight module and liquid crystal display (LCD) - Google Patents
Sidelight type backlight module and liquid crystal display (LCD) Download PDFInfo
- Publication number
- CN202065832U CN202065832U CN2011201875587U CN201120187558U CN202065832U CN 202065832 U CN202065832 U CN 202065832U CN 2011201875587 U CN2011201875587 U CN 2011201875587U CN 201120187558 U CN201120187558 U CN 201120187558U CN 202065832 U CN202065832 U CN 202065832U
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- light
- bar
- lgp
- emitting diode
- module backlight
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Abstract
The utility model discloses a sidelight type backlight module and a liquid crystal display (LCD), so as to solve the problem that many light-emitting diodes (LED) are used by the sidelight type LED backlight module in the prior art. The sidelight type backlight module disclosed by the utility model provides a light guide plate, strip-shaped lampshades arranged in a direction parallel to the side edges of the light guide plate, and LED lamp strips arranged at the end parts of the strip-shaped lampshades. Since the LED lamp strips arranged at the end parts of the strip-shaped lampshades are adopted by the sidelight type backlight module disclosed by the utility model, on the premise that the same picture effect is achieved, less high-power LEDs can be adopted by each LED lamp strip, and thus the manufacturing cost is reduced.
Description
Technical field
The utility model relates to LCD Technology, relates in particular to a kind of side-light type module backlight and LCD.
Background technology
LCD self is not luminous, in order to can be clearly seen that the content of LCD (Liquid Crystal Display LCD), needs certain white light backlight.Backlight is an optical module that is present in LCD inside, is made of light source and necessary optics accessory.The light source of LCD mainly contains two kinds at present, a kind of is CCFL (Cold Cathode Fluorescent Lamp, cathode fluorescent tube), and a kind of is LED (Light Emitting Diode, light emitting diode), the plurality of advantages of LED makes the LED-backlit scheme receive much concern.
Backlight is divided into the backlight and direct-light-type backlight of side-light type according to the position difference of light source.In side-light type structure backlight, light source is placed on the side of backlight, and the white light that is produced by light source reflexes in the LGP of being made by acryl through end reflector plate.The LGP major function is to convert the directional light of incident to planar light by light principle at random, the light diffusion and deflection that through diffusion LGP is penetrated again afterwards, the last optically focused prismatic lens that becomes continuous sawtooth channel form again via two surfaces makes light assemble and adjustment divergence of beam angle in the xy direction.In the prior art, the needs that the side light type LED back light module uses according to reality are provided with LED respectively at two or three sides of LGP, and in order to reach picture effect preferably, each side need be provided with a row LED, and module backlight has all used more LED.
This shows that side light type LED back light module of the prior art uses more LED, exists the manufacturing cost problem of higher.
The utility model content
The purpose of this utility model is to use more LED at side light type LED back light module of the prior art, there is the manufacturing cost problem of higher, provide a kind of side-light type module backlight, comprise LGP, with the bar shaped lampshade of the side parallel direction setting of LGP and the light-emitting diode light bar that is arranged at bar shaped lampshade end.
Further, described strip light cover posts the reflecting layer that is used for the light that light-emitting diode light bar sends is reflexed to LGP to LGP one side.
Further, the angular bisector of the lighting angle of the light emitting diode on the light-emitting diode light bar is parallel with LGP.
Further, the quantity of the light emitting diode on the light-emitting diode light bar is 1-3.
Further, the quantity of bar shaped lampshade is two, is separately positioned on two parallel sides of LGP, and each bar shaped lampshade two ends is respectively arranged with a light-emitting diode light bar.
Further, light-emitting diode light bar is fixed in aluminum bar shaped lampshade by aluminum lamp bar substrate.
Further, the reflecting layer is an arc in the cross section of a sideline vertical direction of LGP side.
Further, also comprise backboard, backboard is provided with end reflector plate, and LGP is arranged on the end reflector plate, and the bar shaped lampshade is installed on the backboard.
Further, the leading-out terminal of light-emitting diode light bar is arranged at the headspace of bar shaped lampshade and the headspace of backboard, and leading-out terminal is connected by cable with drive plate.
Further, light-emitting diode light bar adopts FPC to be connected with drive plate.
The utility model also provides a kind of LCD, and the LCD body is provided with side-light type module backlight as the aforementioned.
The utility model embodiment also provides a kind of LCD, and the LCD body is provided with side-light type module backlight as the aforementioned.
Because the utility model adopted the light-emitting diode light bar that is arranged at bar shaped lampshade end, reaching under the prerequisite of same picture effect, each light-emitting diode light bar can adopt number less but the bigger LED of power, thereby reduce manufacturing cost.
Description of drawings
Figure 1 shows that module component diagram backlight of the present utility model;
Figure 2 shows that die set light source distribution schematic diagram backlight of the present utility model;
Figure 3 shows that lampshade of the present utility model, lamp bar outlet sectional view.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described, use more LED at side light type LED back light module of the prior art, the manufacturing cost problem of higher, the utility model embodiment provides a kind of side-light type module backlight.
The side-light type back light module unit structure schematic diagram that Fig. 1 provides for the utility model, the backboard 3 of side-light type module backlight is provided with end reflector plate 4, end reflector plate 4 is provided with LGP 5, the side up and down of LGP 5 is respectively arranged with a bar shaped lampshade 2, bar shaped lampshade 2 is with side is parallel up and down, bar shaped lampshade 2 is provided with the reflecting layer in the face of LGP 5 one sides, each bar shaped lampshade 2 two ends is respectively arranged with a LED lamp bar 1, and the light that makes LED on the LED lamp bar 1 send imports LGP 5 after reflection.Preferably, the angular bisector of the lighting angle of the LED on the light emitting LED lamp bar 1 is parallel with LGP 5, and the light that enters LGP like this is comparatively even.
This module backlight is only used 4 great power LEDs (on the LED lamp bar LED being set), significantly reduced the usage quantity of LED, can reduce manufacturing cost, and the most of light of LED is not directly injected LGP, but through injecting LGP again behind the lampshade mixed light, avoided the firefly phenomenon, make the easier realization of LGP optical design, bar shaped lampshade 2 two ends are provided with a LED lamp bar 1 respectively, on the LED lamp bar 1 high-power LED lamp bar 1 is set, such design makes, entering the light near the LGP of bar shaped lampshade 2 one ends, mainly is the reverberation that the LED lamp bar 1 that closes on emits beam, and also having fraction is the reverberation that the LED lamp bar 1 of these bar shaped lampshade 2 other ends emits beam, and part directly enters the light of LGP, thereby the light that has guaranteed to enter LGP is comparatively even.
Certainly the side-light type back light module unit structure among this Fig. 1 is the preferred version of present embodiment, and the position that present embodiment stripes not match shape lampshade 2 is provided with limits, as can also being that three sides at LGP 5 all are provided with bar shaped lampshade 2.
Present embodiment does not limit the LED number that is provided with on the quantity of the LED lamp bar 1 on each bar shaped lampshade 2 and every the LED lamp bar yet, as being, side up and down at LGP 5 is respectively arranged with a bar shaped lampshade 2, only the end at each bar shaped lampshade 2 is provided with a LED lamp bar 1, LED lamp bar 1 be positioned at LGP 5 to the angular direction.The quantity of the light emitting diode on the LED lamp bar 1 is 1-3, can guarantee to adopt lower cost under the prerequisite of effect preferably like this.
The scheme in the above embodiments that need to prove can both realize the purpose of this utility model, so long as following structure gets final product, side-light type module backlight comprise LGP 5, with the bar shaped lampshade 2 of the side parallel direction setting of LGP 5 and the LED bar that is arranged at bar shaped lampshade 2 ends.Reaching under the prerequisite of same picture effect like this, each light-emitting diode light bar can adopt number less but the bigger LED of power, thereby reduce manufacturing cost.
In order to make structure compact more, the reflecting layer directly is attached on the bar shaped lampshade.
For the heat that guarantees LED lamp bar 1 conducts timely, bar shaped lampshade 2 is installed on the backboard 3, and bar shaped lampshade 2 is the aluminum lampshade, and LED lamp bar 1 is fixed in bar shaped lampshade 2 by aluminum lamp bar substrate.The heat that guarantees LED lamp bar 1 so in time is transmitted on the bar shaped lampshade 2, and then is transmitted on the backboard 3, finally heat is derived.
Die set light source distribution schematic diagram backlight as shown in Figure 2, the most of light that LED lamp bar 1 sends is injected the LGP 5 that passes through optical design then through the reflecting layer 7 abundant mixed lights reflections of bar shaped lampshade 2, has the light of fraction directly to enter LGP 5 simultaneously.
Lampshade, lamp bar outlet sectional view are as shown in Figure 3, bar shaped lampshade 2 is installed on the side that is positioned at LGP 5 on the backboard 3, the arc reflecting layer 7 that bar shaped lampshade 2 is provided with, the leading-out terminal 6 of the LED lamp bar 1 on the bar shaped lampshade 2, be arranged at the headspace of lampshade 2 and the headspace of backboard 3, leading-out terminal 6 can be connected with drive plate by cable, realizes power supply.
Certainly, LED lamp bar 1 can also adopt FPC to be connected with drive plate.
The utility model embodiment also provides a kind of LCD, and this LCD body is provided with side-light type module backlight as the aforementioned.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (11)
1. a side-light type module backlight is characterized in that, comprise LGP, with the bar shaped lampshade of the side parallel direction setting of LGP and the light-emitting diode light bar that is arranged at bar shaped lampshade end.
2. side-light type according to claim 1 module backlight is characterized in that described strip light cover posts the reflecting layer that is used for the light that light-emitting diode light bar sends is reflexed to LGP to LGP one side.
3. side-light type according to claim 2 module backlight is characterized in that the angular bisector of the lighting angle of the light emitting diode on the light-emitting diode light bar is parallel with LGP.
4. side-light type according to claim 1 module backlight is characterized in that, the quantity of the light emitting diode on the light-emitting diode light bar is 1-3.
5. side-light type according to claim 1 module backlight is characterized in that the quantity of bar shaped lampshade is two, is separately positioned on two parallel sides of LGP, and each bar shaped lampshade two ends is respectively arranged with a light-emitting diode light bar.
6. side-light type according to claim 1 module backlight is characterized in that, light-emitting diode light bar is fixed in aluminum bar shaped lampshade by aluminum lamp bar substrate.
7. side-light type according to claim 1 module backlight is characterized in that the reflecting layer is an arc in the cross section of a sideline vertical direction of LGP side.
8. side-light type according to claim 1 module backlight is characterized in that, comprises that also backboard, backboard are provided with end reflector plate, and LGP is arranged on the end reflector plate, and the bar shaped lampshade is installed on the backboard.
9. side-light type according to claim 8 module backlight is characterized in that, the leading-out terminal of light-emitting diode light bar is arranged at the headspace of bar shaped lampshade and the headspace of backboard, and leading-out terminal is connected by cable with drive plate.
10. side-light type according to claim 1 module backlight is characterized in that, light-emitting diode light bar adopts FPC to be connected with drive plate.
11. a LCD is characterized in that, the LCD body is provided with as the described side-light type of the arbitrary claim of claim 1 to 10 module backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201875587U CN202065832U (en) | 2011-06-03 | 2011-06-03 | Sidelight type backlight module and liquid crystal display (LCD) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201875587U CN202065832U (en) | 2011-06-03 | 2011-06-03 | Sidelight type backlight module and liquid crystal display (LCD) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065832U true CN202065832U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201875587U Expired - Lifetime CN202065832U (en) | 2011-06-03 | 2011-06-03 | Sidelight type backlight module and liquid crystal display (LCD) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047984A1 (en) * | 2012-09-28 | 2014-04-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN106569299A (en) * | 2016-11-08 | 2017-04-19 | 深圳市华星光电技术有限公司 | Edge-light-type backlight module group and liquid crystal display |
-
2011
- 2011-06-03 CN CN2011201875587U patent/CN202065832U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047984A1 (en) * | 2012-09-28 | 2014-04-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| CN106569299A (en) * | 2016-11-08 | 2017-04-19 | 深圳市华星光电技术有限公司 | Edge-light-type backlight module group and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |