CN203286495U - Multi-face-light-emitting LED light source, LED lamp strip and backlight module - Google Patents
Multi-face-light-emitting LED light source, LED lamp strip and backlight module Download PDFInfo
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- CN203286495U CN203286495U CN2013203725047U CN201320372504U CN203286495U CN 203286495 U CN203286495 U CN 203286495U CN 2013203725047 U CN2013203725047 U CN 2013203725047U CN 201320372504 U CN201320372504 U CN 201320372504U CN 203286495 U CN203286495 U CN 203286495U
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Abstract
The utility model relates to the technical field of displaying, in particular to a multi-face-light-emitting LED light source, an LED lamp strip comprising the multi-face-light-emitting LED light source, and a backlight module comprising the LED lamp strip. The multi-face-light-emitting LED light source comprises a carrying base table which is in a frustum shape or a prism frustum shape. LED light-emitting chips are arranged on the top face and the side faces of the carrying base table. According to the multi-face-light-emitting LED light source, the carrying base table which is in a frustum shape or a prism frustum shape is arranged, the LED light-emitting chips are arranged on the top face and the side faces of the carrying base table, the LED light-emitting chips arranged on the side faces of the carrying base table are used for effectively compensating lighting intensity of a light-emitting blind zone formed at the gap between two adjacent LED light sources, and accordingly Hot Spot phenomena are reduced or avoided.
Description
Technical field
The utility model relates to the Display Technique field, is specifically related to a kind of LED light source of multifaceted light-emitting, the LED lamp bar of LED light source that comprises this multifaceted light-emitting and the backlight module that comprises this LED lamp bar.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display, TFT-LCD) picture is stable owing to having, image fidelity, elimination radiation, save space and save the advantages such as energy consumption, be widely used in the electronic products such as TV, mobile phone, display, occupied the leading position in demonstration field, plane., because liquid crystal panel itself is not luminous, need backlight module to provide light source for it.The main constituent components of backlight module comprises LED lamp bar, bottom reflection sheet, LGP, optical film material, glue frame and backboard etc. at present.
As shown in fig. 1, it is comprised of the luminous LED light source of a plurality of single faces as shown in Figure 2 LED lamp bar of the prior art, and this LED light source is by the carrying base station 2 that comprises a cubic and be arranged on the LED luminescence chip 1 that carries base station 2 end faces.The lamp bar that the luminous LED light source of a plurality of single faces forms is when luminous, luminous characteristics due to the luminous LED light source self of single face, can form luminous blind area by the gap location between two adjacent LED light sources, illumination is very weak, form dark section, and very strong in the dead ahead of LED illuminating source illumination, form speck.This phenomenon is called Hot Spot(focal point or firefly) phenomenon.This phenomenon can cause the edge brightness uniformity of the display devices such as LCD TV to reduce, thereby affects whole image quality.In the design backlight module, can be by increasing A/P than (A:LED lamp bar is to the distance of LGP; P: the distance between the center of adjacent LED light source) reduce or eliminate to a certain extent the generation of Hot Spot phenomenon.But when the A value increases, be unfavorable for reducing the volume of backlight module, do not meet the lightening trend of current electronic device; When the P value reduces, can increase the number of LED light source on LED lamp bar, be unfavorable for that the heat radiation of LED light source and optics utilization rate are lower, cause the waste of the energy, be unfavorable for energy-saving and emission-reduction; Therefore, in the design backlight module, usually limit less A/P ratio, so be difficult to solve Hot Spot phenomenon.
The utility model content
The technical problem that (one) will solve
The purpose of this utility model is to provide the intensity of illumination of the luminous blind area that a kind of gap location between can two adjacent LED light sources of effective compensation forms, thereby reduces or avoid the generation of Hot Spot phenomenon.
(2) technical scheme
Technical solutions of the utility model are as follows:
A kind of LED light source of multifaceted light-emitting, comprise the carrying base station; Described carrying base station is frustum or many prism-frustum-shapeds; Be provided with the LED luminescence chip on the end face of described carrying base station and side.
Preferably, described carrying base station is frustum of a pyramid shape or many prism-frustum-shapeds; Be provided with described LED luminescence chip on the end face of described carrying base station and each side.
Preferably, described carrying base station is quadrangular frustum pyramid shaped; Described truncated rectangular pyramids comprises two relative rectangle sides; The LED luminescence chip of the side of described carrying base station is arranged on two described rectangle sides.
Preferably, described carrying base station is circular cone shape; The LED luminescence chip of the side of described carrying base station evenly is arranged on the circumference of a cross section of described carrying base station.
Preferably, be arranged on the power of the power of the LED luminescence chip that carries the base station side less than the LED luminescence chip that is arranged on carrying base station end face.
Preferably, be connected to control chip after all LED luminescence chip series connection.
Preferably, each LED luminescence chip is connected to separately control chip.
Preferably, all are connected to control chip after being arranged on the LED luminescence chip series connection of carrying the base station side, and the LED luminescence chip that is arranged on carrying base station end face is connected to separately control chip.
The utility model also provides a kind of LED lamp bar:
A kind of LED lamp bar, comprise the LED light source of a plurality of above-mentioned any one multifaceted light-emittings; The LED light source array arrangement of a plurality of described multifaceted light-emittings.
The utility model also provides a kind of backlight module that comprises above-mentioned LED lamp bar.
(3) beneficial effect
The LED light source of multifaceted light-emitting provided by the utility model, the carrying base station that is frustum or many prism-frustum-shapeds by setting, and all be provided with the LED luminescence chip on the end face that carries base station and side, the LED luminescence chip that utilization is arranged on carrying base station side effectively compensates the intensity of illumination of the luminous blind area that the gap location between two adjacent LED light sources forms, thereby reduces or avoid the generation of Hot Spot phenomenon.
Description of drawings
Fig. 1 is the structural representation of a kind of LED lamp bar in prior art;
Fig. 2 is the structural representation of the luminous LED light source of single face in Fig. 1;
Fig. 3 is the structural representation of the LED light source of multifaceted light-emitting in the utility model embodiment one;
Fig. 4 is the structural representation of LED lamp bar in the utility model embodiment one;
Fig. 5 is the structural representation of the LED light source of multifaceted light-emitting in the utility model embodiment two;
Fig. 6 is the structural representation of LED lamp bar in the utility model embodiment two;
Fig. 7 is the structural representation of the LED light source of multifaceted light-emitting in the utility model embodiment three;
Fig. 8 is the structural representation of LED lamp bar in the utility model embodiment three.
In figure: the 1:LED luminescence chip; 2: the carrying base station; 3: the LED luminescence chip that is arranged on carrying base station end face; 4: the LED luminescence chip that is arranged on carrying base station side.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described further.Following examples only are used for explanation the utility model, but are not used for limiting scope of the present utility model.
The LED light source of multifaceted light-emitting provided by the utility model mainly comprises the carrying base station, and the carrying base station is frustum or many prism-frustum-shapeds; Be provided with the LED luminescence chip on the end face that carries base station and side; The LED luminescence chip that utilization is arranged on carrying base station side effectively compensates the intensity of illumination of the luminous blind area that the gap location between two adjacent LED light sources forms, thereby reduces or avoid the generation of Hot Spot phenomenon.Owing to having avoided increase A/P ratio, therefore needn't increase the number of LED light source on LED lamp bar, the spacing between LED light source also can widen, and has not only facilitated the heat radiation of LED light source, and has strengthened the optics utilization rate.Below in conjunction with embodiment, the LED light source of this multifaceted light-emitting is described in detail.
Embodiment one
The carrying base station of the LED light source of the multifaceted light-emitting that provides in the present embodiment is many prism-frustum-shapeds; Can on the end face that carries base station and each side, the LED luminescence chip be set all, the LED light source of this multifaceted light-emitting owing to can the intensity of illumination of the luminous blind area of all directions effectively being compensated, the LED lamp bar of the multirow LED light source that therefore is applicable to arrange.Also can, only on a pair of relative side of carrying base station with on the end face that carries base station, the LED luminescence chip being set, be applicable to the LED lamp bar that the LED light source single file is arranged.
The LED light source of multifaceted light-emitting as shown in Figure 3, its carrying base station 2 is quadrangular frustum pyramid shaped, and two relative sides are that rectangle is domatic, and two other relative side is vertical plane; The LED luminescence chip be arranged on end face and two rectangles domatic on.Apply this multifaceted light-emitting LED light source LED lamp bar as shown in Figure 4, the equally spaced delegation that is arranged into of the LED light source of a plurality of these multifaceted light-emittings, the intensity of illumination that utilization is arranged on the luminous blind area that the LED luminescence chip of two rectangles on domatic form the gap location between two adjacent LED light sources effectively compensates, thereby reduces or avoid the generation of Hot Spot phenomenon.The carrying base station of the LED light source of multifaceted light-emitting can design separately production, and the both sides that the carrying base station of cubic that also can be in the prior art is relative increase by two domatic loading floors of rectangle and get final product.
The intensity of illumination that due to the Main Function of LED luminescence chip 4 that is arranged on carrying base station side is luminous blind area that the gap location between two adjacent LED light sources is formed effectively compensates, and main illumination effect is still provided by the LED luminescence chip 3 that is arranged on carrying base station end face; Therefore, be arranged on the power of the power of the LED luminescence chip 4 that carries the base station side less than the LED luminescence chip 3 that is arranged on carrying base station end face in the present embodiment.
About the control to each LED luminescence chip, can will be connected to control chip after all LED luminescence chip series connection, control simultaneously the luminous power of the LED luminescence chip of adjusting the LED luminescence chip that is arranged on carrying base station end face and being arranged on carrying base station side and the proportioning of fluorescent material by control chip, thereby the control luminous intensity, but may there is so the not high problem of control accuracy; Also each LED luminescence chip can be connected to separately control chip, control separately the luminous power of each LED luminescence chip of adjustment and the proportioning of fluorescent material by control chip, thereby control accurately luminous intensity, but may have the higher problem of controlling cost like this.In the present embodiment, after being arranged on the LED luminescence chip series connection of carrying the base station side, all are connected to control chip, the LED luminescence chip that is arranged on carrying base station end face is connected to separately control chip, so both the intensity of illumination of the luminous blind area of compensation and the intensity of illumination that main illumination effect is provided can be controlled separately respectively, and also do not had too much increase to control cost.
Embodiment two
The carrying base station of the LED light source of the multifaceted light-emitting that provides in the present embodiment is frustum of a pyramid shape, be provided with the LED luminescence chip on the end face that carries base station and each side, the LED light source of this multifaceted light-emitting owing to can the intensity of illumination of the luminous blind area of all directions effectively being compensated, the LED lamp bar of the multirow LED light source that therefore is applicable to arrange.
The LED light source of multifaceted light-emitting as shown in Figure 5, its carrying base station 2 is the tetragonous cone table shape, is provided with the LED luminescence chip on the end face of carrying base station 2 and each side.Apply this multifaceted light-emitting LED light source LED lamp bar as shown in Figure 6, the LED light source array arrangement of a plurality of these multifaceted light-emittings, utilization is arranged on the LED luminescence chip of carrying on base station 2 each side the intensity of illumination of the luminous blind area that is positioned at all directions is effectively compensated, thereby avoids the generation of Hot Spot phenomenon.Wherein, to similar in the control mode of each LED luminescence chip and embodiment one.
Embodiment three
The carrying base station of the LED light source of the multifaceted light-emitting that provides in the present embodiment is circular cone shape, be provided with the LED luminescence chip on the end face that carries base station and side, the LED light source of this multifaceted light-emitting owing to can the intensity of illumination of the luminous blind area of all angles effectively being compensated, the LED lamp bar of the multirow LED light source that therefore is applicable to arrange.
The LED light source of multifaceted light-emitting as shown in Figure 7, its carrying base station 2 is circular cone shape, and the LED luminescence chip 4 in the side of carrying base station 2 evenly is arranged on the circumference of 2 one cross sections of carrying base station.Apply this multifaceted light-emitting LED light source LED lamp bar as shown in Figure 8, the LED light source array arrangement of a plurality of these multifaceted light-emittings, utilization is arranged on the LED luminescence chip of carrying on base station 2 sides the intensity of illumination of the luminous blind area that is positioned at all angles is effectively compensated, thereby avoids the generation of Hot Spot phenomenon.Wherein, to similar in the control mode of each LED luminescence chip and embodiment one.
Embodiment four
The utility model also provides a kind of backlight module that comprises above-mentioned any one LED lamp bar; Can effectively avoid the generation of Hot Spot phenomenon due to the LED lamp bar that uses, the illumination that provides has very high evenness, thereby has strengthened the illumination effect of backlight module, has promoted the image quality of display unit.
Above embodiment only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification, so all technical schemes that are equal to also belong to protection category of the present utility model.
Claims (10)
1. the LED light source of a multifaceted light-emitting, comprise the carrying base station; It is characterized in that, described carrying base station is frustum or many prism-frustum-shapeds; Be provided with the LED luminescence chip on the end face of described carrying base station and side.
2. the LED light source of multifaceted light-emitting according to claim 1, is characterized in that, described carrying base station is frustum of a pyramid shape or many prism-frustum-shapeds; Be provided with described LED luminescence chip on the end face of described carrying base station and each side.
3. the LED light source of multifaceted light-emitting according to claim 2, is characterized in that, described carrying base station is quadrangular frustum pyramid shaped; Described truncated rectangular pyramids comprises two relative rectangle sides; The LED luminescence chip of the side of described carrying base station is arranged on two described rectangle sides.
4. the LED light source of multifaceted light-emitting according to claim 1, is characterized in that, described carrying base station is circular cone shape; The LED luminescence chip of the side of described carrying base station evenly is arranged on the circumference of a cross section of described carrying base station.
5. the LED light source of according to claim 1-4 described multifaceted light-emittings of any one, is characterized in that, is arranged on the power of the power of the LED luminescence chip that carries the base station side less than the LED luminescence chip that is arranged on carrying base station end face.
6. the LED light source of multifaceted light-emitting according to claim 5, is characterized in that, is connected to control chip after all LED luminescence chip series connection.
7. the LED light source of multifaceted light-emitting according to claim 5, is characterized in that, each LED luminescence chip is connected to separately control chip.
8. the LED light source of multifaceted light-emitting according to claim 5, is characterized in that, all are connected to control chip after being arranged on the LED luminescence chip series connection of carrying the base station side, and the LED luminescence chip that is arranged on carrying base station end face is connected to separately control chip.
9. a LED lamp bar, is characterized in that, comprises the LED light source of the described multifaceted light-emitting of a plurality of claim 1-8 any one; The LED light source array arrangement of a plurality of described multifaceted light-emittings.
10. a backlight module, is characterized in that, comprises LED lamp bar claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203725047U CN203286495U (en) | 2013-06-26 | 2013-06-26 | Multi-face-light-emitting LED light source, LED lamp strip and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203725047U CN203286495U (en) | 2013-06-26 | 2013-06-26 | Multi-face-light-emitting LED light source, LED lamp strip and backlight module |
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| CN203286495U true CN203286495U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203725047U Expired - Fee Related CN203286495U (en) | 2013-06-26 | 2013-06-26 | Multi-face-light-emitting LED light source, LED lamp strip and backlight module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884992A (en) * | 2017-12-26 | 2018-04-06 | 惠州市华星光电技术有限公司 | The backlight module and display device of low cost |
| CN107991805A (en) * | 2017-11-14 | 2018-05-04 | 青岛海信电器股份有限公司 | A kind of side entrance back module and display device |
| CN108983496A (en) * | 2018-08-02 | 2018-12-11 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN109523909A (en) * | 2018-12-03 | 2019-03-26 | 厦门天马微电子有限公司 | A kind of backlight, backlight module and display device |
| US10802332B2 (en) | 2017-12-26 | 2020-10-13 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Low cost backlight module and display device |
| CN112987408A (en) * | 2021-04-01 | 2021-06-18 | 深圳Tcl新技术有限公司 | Backlight module and display panel |
-
2013
- 2013-06-26 CN CN2013203725047U patent/CN203286495U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991805A (en) * | 2017-11-14 | 2018-05-04 | 青岛海信电器股份有限公司 | A kind of side entrance back module and display device |
| CN107884992A (en) * | 2017-12-26 | 2018-04-06 | 惠州市华星光电技术有限公司 | The backlight module and display device of low cost |
| WO2019127784A1 (en) * | 2017-12-26 | 2019-07-04 | 惠州市华星光电技术有限公司 | Low-cost backlight module and display apparatus |
| US10802332B2 (en) | 2017-12-26 | 2020-10-13 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Low cost backlight module and display device |
| CN108983496A (en) * | 2018-08-02 | 2018-12-11 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN109523909A (en) * | 2018-12-03 | 2019-03-26 | 厦门天马微电子有限公司 | A kind of backlight, backlight module and display device |
| CN112987408A (en) * | 2021-04-01 | 2021-06-18 | 深圳Tcl新技术有限公司 | Backlight module and display panel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 |