CN203273503U - Direct type backlight module and liquid crystal display - Google Patents
Direct type backlight module and liquid crystal display Download PDFInfo
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- CN203273503U CN203273503U CN 201320116755 CN201320116755U CN203273503U CN 203273503 U CN203273503 U CN 203273503U CN 201320116755 CN201320116755 CN 201320116755 CN 201320116755 U CN201320116755 U CN 201320116755U CN 203273503 U CN203273503 U CN 203273503U
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- mode set
- light source
- down straight
- lug boss
- aphototropism mode
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Abstract
The utility model discloses a direct type backlight module and a liquid crystal display. The direct type backlight module comprises a cavity consisting of a backboard and a light source installed in the cavity, wherein the backboard comprises a base-plate on which a raised part is arranged, at least one light source is arranged at one side of the raised part, and an acute angle is formed between the side of the raised part and the base-plate. In the direct type backlight module provided by the utility model, the light source is placed on the side of the raised part, so that the light from the light source side can be reflected again by other adjacently installed raised parts, and the scattering of light can be enhanced, so that an emergent angle can be enlarged and an optical mixing distance can be reduced.
Description
Technical field
The utility model relates to technical field of liquid crystal display, relates in particular to a kind of down straight aphototropism mode set and liquid crystal display.
Background technology
Light mixing distance refers to luminous point to the distance of diffuser plate, i.e. the thickness of display interior.Therefore the large I of light mixing distance embodies the thickness degree of display to a certain extent, and the size of light mixing distance depends on the LED rising angle to a great extent, and when lighting angle was larger, light mixing distance was just less.For example, the demand of user to slim liquid crystal display needs less light mixing distance to reach the purpose that obtains slim liquid crystal display.
Fig. 1 is the structural representation of down straight aphototropism mode set in prior art.Down straight aphototropism mode set comprises backboard, LED2, reflector plate 3, diffuser plate 4, the first brightening piece 5 and the second brightening piece 6.Wherein: backboard comprises base plate 1 and at least two side plates 7, and the angle between base plate 1 and side plate 7 is 135 degree.In this structure, the lighting angle of LED is smaller, so the light mixing distance of this backlight module is larger.The backlight module of this structure is due to reasons such as a plurality of spot lights of use, make more light penetrate from exit facet, therefore improved to a certain extent the utilization rate of light, but because the lighting angle light mixing distance is larger, therefore the Thickness Ratio of the backlight module of this structure is thicker, when reducing light mixing distance, the thickness of backlight module can corresponding diminishing.
The utility model content
Main purpose of the present utility model is to provide down straight aphototropism mode set and the liquid crystal display that reduces light mixing distance.
In order to achieve the above object, the utility model proposes a kind of down straight aphototropism mode set, this down straight aphototropism mode set comprises the cavity that backboard forms and the light source of installing in described cavity, described backboard comprises base plate, described base plate is provided with lug boss, at least one described light source is arranged on the side of described lug boss, and described side and described base plate are in an acute angle.
Preferably, described lug boss is the triangular prism body, and a side of described triangular prism is attached on described base plate.
Preferably, described lug boss is provided with two, and described light source is three, a middle part that is arranged on described base plate, and described two lug bosses are coupled together, two other is installed on respectively on the side that mutually deviates from of described two lug bosses.
Preferably, described lug boss is at least one, and described light source is separately positioned on two sides of described lug boss.
Preferably, the angle of the side of described lug boss and described base plate is 5 ° ~ 15 °.
Preferably, described backboard also comprises biside plate at least, and described biside plate at least and described base plate angulation are 135 ° ~ 180 °.
Preferably, described light source is LED lamp bar.
Preferably, also comprise the reflector plate of the side that is arranged on described lug boss, described light source is attached on described reflector plate by pcb board.
Preferably, described side plate is provided with four, and described four side plates and described base plate have formed the cavity with reflection function of spill.
The utility model further also proposes a kind of liquid crystal display, comprises down straight aphototropism mode set as above.
The utility model proposes in down straight aphototropism mode set, place light source on the side of lug boss, the secondary reflection again of the lug boss of other that makes that light source side light out can arrange through the side strengthens scattering of light, thereby enlarged rising angle, thereby reduced light mixing distance.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of down straight aphototropism mode set in prior art;
Fig. 2 is the sectional structure schematic diagram of the utility model down straight aphototropism mode set the first embodiment;
Fig. 3 is the top view of backlight module shown in Figure 2;
Fig. 4 is the light path principle figure of the utility model down straight aphototropism mode set the first embodiment;
Fig. 5 is the sectional structure schematic diagram of the utility model down straight aphototropism mode set the second embodiment;
Fig. 6 is the light path principle figure of the utility model down straight aphototropism mode set the second embodiment.
The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.
The specific embodiment
Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of down straight aphototropism mode set.
With reference to Fig. 2 to Fig. 4, Fig. 2 is the sectional structure schematic diagram of the utility model down straight aphototropism mode set the first embodiment; Fig. 3 is the top view of backlight module shown in Figure 2; Fig. 4 is the light path principle figure of the utility model down straight aphototropism mode set the first embodiment.
In the present embodiment, a kind of down straight aphototropism mode set, comprise the cavity 20 that backboard 10 forms and the light source 30 of installing in cavity, wherein, backboard 10 comprises that base plate 11 reaches biside plate 12 at least, in addition, on base plate 11 and be positioned at the cavity madial wall and be provided with lug boss 40, at least one light source 30 is arranged on the side of lug boss 40, and the side of light source 30 and the upper surface formation acute angle (angle of getting the upper surface of described side and base plate 11 herein is acute angle) of base plate 11 are installed.Lug boss 40 can arrange various shape, as long as guarantee that the side of installation light source 30 and the angle of base plate 11 are acute angle, this angle refers to side and the formed acute angle of base plate 11, and this acute angle is preferably 5 ~ 15 °.The utility model is not restricted the shape of lug boss 40.Can be arranged to cross section as lug boss 40 is tetragonal lug boss, and will guarantee laterally inclined on base plate 11 this moment.The utility model proposes a preferred version, lug boss 40 is tapered protrusion, can be arranged to triangular prism as lug boss 40, and the bottom surface of triangular prism is vertical with base plate 11, and namely this triangular prism side is attached on described base plate 11.
In the utility model, in order to reach the purpose that increases lighting angle, can guarantee that the side of lug boss 40 and the upper surface formation acute angle of base plate 11 get final product.And light source 30 various ways is installed, the utility model proposes two kinds of embodiments, as long as other embodiment ensures the side and base plate 11 formation acute angles of the lug boss 40 that light source 30 is installed, the utility model is not construed as limiting this.
The present embodiment proposes in the first embodiment, down straight aphototropism mode set comprises the upper surface that is fixed on successively backboard 10 and the diffuser plate 50 that be arranged in parallel with base plate 11, the first brightening piece 60, the second brightening piece 70 and glass 80, by glue frame 90, diffuser plate 50, the first brightening piece 60, the second brightening piece 70 and glass 80 is fixed on backboard 10.The light that light source 30 sends then by the further diffusion of diffuser plate 50 and the humidification of the first brightening piece 60 and the second brightening piece 70, thereby further improves the light intensity of this down straight aphototropism mode set after the reflection of cavity 20 and lug boss 40.In the present embodiment, preferably, the lug boss 40 of down straight aphototropism mode set is provided with two, and light source 30 is LED lamp bar, and this LED lamp bar is provided with three, and a LED lamp bar is arranged on the middle part of base plate 11 and two lug bosses 40 are coupled together.Another two LED lamp bars are installed on respectively on the side that mutually deviates from of two lug bosses 40.In the present embodiment, preferably the LED on LED lamp bar is the LED with lens.The design that LED lamp strip adoption in the centre position of two lug bosses 40 keeps flat, the brightness that can replenish cavity 20 mid portions of down straight aphototropism mode set.Particularly, the angle of the angle that 40 two sides of capable of regulating lug boss and base plate 11 forms, with the rising angle of the light that obtains demand, thereby the light mixing distance that realizes down straight aphototropism mode set reduces and does not have the effect of lamp shadow.Because two LED lamp bars are placed on the side, therefore the LED lamp bar than flatwise has increased rising angle, thereby for realizing that ultra-thin down straight aphototropism mode set provides technical support.
Further, described biside plate at least 12 and the base plate 11 obtuse-angulate angular ranges of shape are between 135 ° and 180 °.Can greatly bring into play the utilization rate of light by the design of high inclination-angle, therefore can reduce the use of light source 30.
Further, described side plate 12 can be provided with four, and four side plates 12 and base plate 11 have formed the cavity with reflection function of spill.By four side plates 12 are set, thereby can carry out scattering more to obtain better dispersion effect, with further enhancing uniformity of light to light source 30.
Further, also comprise the reflector plate (not shown) on the inclined-plane that is attached to described lug boss 40, LED lamp bar is arranged on this inclined-plane by pcb board, thereby further increases reflection of light.In addition, cavity 20 has reflection function particularly, and the cavity 20 that has reflection function by introducing can have been saved reflector plate.
With reference to Fig. 5 and Fig. 6, Fig. 5 is the sectional structure schematic diagram of the utility model down straight aphototropism mode set the second embodiment; Fig. 6 is the light path principle figure of the utility model down straight aphototropism mode set the second embodiment.
The utility model proposes in the second embodiment, different from above-mentioned the first embodiment is that in the present embodiment, the light source 30 of backlight module is different from installation site and the quantity of lug boss 40.In the present embodiment, lug boss 40 is provided with one at least, and light source 30 is arranged on two sides of lug boss 40, and this lug boss 40 is preferably triangular prism.Light source 30 is specially LED lamp bar, LED lamp bar is arranged on two sides of this triangular prism.In the present embodiment, lug boss 40 is provided with three, and LED lamp bar is provided with six.Specifically aborning, the quantity of LED lamp bar and lug boss 40 can arrange according to the size requirements of backlight module, and the utility model is not construed as limiting this.The angle that two sides of lug boss 40 and bottom surface are is respectively α and β is acute angle.It is unequal that α and β can be arranged to equate also can be arranged to, and when α and β equate, lug boss 40 is symmetrical structure.The rising angle of the mixed light of LED can be adjusted the angle of α and β as required, with the rising angle that obtains being fit to, thereby reduces light mixing distance.
The utility model further also proposes a kind of liquid crystal display.
In the present embodiment, a kind of liquid crystal display comprises a kind of down straight aphototropism mode set, and the concrete structure of this down straight aphototropism mode set does not repeat them here with reference to above-described embodiment.
The utility model proposes liquid crystal display, can realize that the down straight aphototropism mode set backlight uniformity strengthens greatly.Side plate and base plate by cavity form the obtuse angle, simultaneously place light source on the side of lug boss, the secondary reflection again of the lug boss of other that makes that light source side light out can arrange through the side, strengthened scattering of light, more light can be penetrated from exiting surface, increased rising angle, solved the narrow defective of optic angle degree that causes because keeping flat light source, thereby reduced light mixing distance.Simple in structure, easy realization simultaneously.This down straight aphototropism mode set by the quantity of adjusting light source, the side of installation light source and the angle of the angle that base plate forms, can make light mixing distance be adjusted in OK range.
The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. down straight aphototropism mode set, comprise the cavity that backboard forms and the light source of installing in described cavity, it is characterized in that, described backboard comprises base plate, described base plate is provided with lug boss, at least one described light source is arranged on the side of described lug boss, and described side and described base plate are in an acute angle.
2. down straight aphototropism mode set according to claim 1, is characterized in that, described lug boss is the triangular prism body, and a side of described triangular prism is attached on described base plate.
3. down straight aphototropism mode set according to claim 2, it is characterized in that, described lug boss is provided with two, described light source is three, a middle part that is arranged on described base plate, and described two lug bosses are coupled together, two other is installed on respectively on the side that mutually deviates from of described two lug bosses.
4. down straight aphototropism mode set according to claim 2, is characterized in that, described lug boss is at least one, and described light source is separately positioned on two sides of described lug boss.
5. according to claim 3 or 4 described down straight aphototropism mode set, is characterized in that, the side of described lug boss and the angle of described base plate are 5 °～15 °.
6. down straight aphototropism mode set according to claim 5, is characterized in that, described backboard also comprises biside plate at least, and described biside plate at least and described base plate angulation are 135 °～180 °.
7. down straight aphototropism mode set according to claim 6, is characterized in that, described light source is LED lamp bar.
8. down straight aphototropism mode set according to claim 1, is characterized in that, also comprises the reflector plate of the side that is arranged on described lug boss, and described light source is attached on described reflector plate by pcb board.
9. down straight aphototropism mode set according to claim 6, is characterized in that, described side plate is provided with four, and described four side plates and described base plate have formed the cavity with reflection function of spill.
10. a liquid crystal display, is characterized in that, comprises down straight aphototropism mode set as described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116755 CN203273503U (en) | 2013-03-14 | 2013-03-14 | Direct type backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116755 CN203273503U (en) | 2013-03-14 | 2013-03-14 | Direct type backlight module and liquid crystal display |
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| Publication Number | Publication Date |
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| CN203273503U true CN203273503U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320116755 Expired - Lifetime CN203273503U (en) | 2013-03-14 | 2013-03-14 | Direct type backlight module and liquid crystal display |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953874A (en) * | 2014-04-18 | 2014-07-30 | 青岛海信电器股份有限公司 | Straight down type backlight module and liquid crystal display device |
| CN105093675A (en) * | 2015-07-30 | 2015-11-25 | 深圳市华星光电技术有限公司 | Backlight module |
| CN105242453A (en) * | 2015-10-15 | 2016-01-13 | 广州创维平面显示科技有限公司 | Direct illumination-type backlight module and liquid crystal display device |
| WO2016054827A1 (en) * | 2014-10-09 | 2016-04-14 | 深圳市华星光电技术有限公司 | Backlight structure and liquid crystal display |
| CN107577085A (en) * | 2017-10-12 | 2018-01-12 | 惠州市华星光电技术有限公司 | A kind of lamp bar, backlight module and liquid crystal display |
| TWI664478B (en) * | 2016-05-27 | 2019-07-01 | 鴻海精密工業股份有限公司 | Backlight module |
-
2013
- 2013-03-14 CN CN 201320116755 patent/CN203273503U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953874A (en) * | 2014-04-18 | 2014-07-30 | 青岛海信电器股份有限公司 | Straight down type backlight module and liquid crystal display device |
| CN103953874B (en) * | 2014-04-18 | 2016-06-08 | 青岛海信电器股份有限公司 | A kind of down straight aphototropism mode set and liquid crystal indicator |
| WO2016054827A1 (en) * | 2014-10-09 | 2016-04-14 | 深圳市华星光电技术有限公司 | Backlight structure and liquid crystal display |
| CN105093675A (en) * | 2015-07-30 | 2015-11-25 | 深圳市华星光电技术有限公司 | Backlight module |
| WO2017015994A1 (en) * | 2015-07-30 | 2017-02-02 | 深圳市华星光电技术有限公司 | Backlight module |
| CN105093675B (en) * | 2015-07-30 | 2018-04-13 | 深圳市华星光电技术有限公司 | A kind of backlight module |
| CN105242453A (en) * | 2015-10-15 | 2016-01-13 | 广州创维平面显示科技有限公司 | Direct illumination-type backlight module and liquid crystal display device |
| TWI664478B (en) * | 2016-05-27 | 2019-07-01 | 鴻海精密工業股份有限公司 | Backlight module |
| CN107577085A (en) * | 2017-10-12 | 2018-01-12 | 惠州市华星光电技术有限公司 | A kind of lamp bar, backlight module and liquid crystal display |
| US10824007B2 (en) | 2017-10-12 | 2020-11-03 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Light bar, backlight module 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |