CN202433648U - Liquid crystal television and direct type liquid crystal display module - Google Patents
Liquid crystal television and direct type liquid crystal display module Download PDFInfo
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- CN202433648U CN202433648U CN2011205547030U CN201120554703U CN202433648U CN 202433648 U CN202433648 U CN 202433648U CN 2011205547030 U CN2011205547030 U CN 2011205547030U CN 201120554703 U CN201120554703 U CN 201120554703U CN 202433648 U CN202433648 U CN 202433648U
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- liquid crystal
- light emitting
- emitting diode
- reflector plate
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Abstract
The utility model discloses a liquid crystal television and a direct type liquid crystal display module. The direct type liquid crystal display module comprises a back plate, light emitting diodes with lenses and a reflection sheet, wherein the light emitting diodes are arranged at the bottom of the back plate; through holes through which the light emitting diodes pass are formed in the reflection sheet; the reflection sheet is arranged in the back plate; the light emitting diodes are exposed from the through holes; and the through holes are formed on at least one corner at the bottom of the reflection sheet and used for exposing the light emitting diodes arranged at the bottom of the back plate. The light emitting diodes with the lenses are arranged on the corners at the bottom of the back plate, so that the brightness requirement is met, the uniformity is obviously improved, hidden angles are eliminated, the using amount of diffusion sheets is reduced, the cost of the direct type liquid crystal display module is saved, and the market competitiveness of the LED LENS direct type liquid crystal display module is improved.
Description
Technical field
The utility model relates to directly-down liquid crystal demonstration module and the LCD TV field thereof of LED LENS as backlight of adopting, and in particular, what improvement related to is that a kind of LCD TV and LED LENS directly-down liquid crystal show module.
Background technology
Nowadays the directly-down liquid crystal that exists on the market shows that module is still with CCFL (Cold Cathode Fluorescent Lamp; Cathode fluorescent tube) in the majority as backlight; Because shorten owing to heat radiation causes the serviceable life of module backlight slowly as the liquid crystal display module of backlight with LED (Light Emitting Diode, light emitting diode).
Comparatively the LED directly-down liquid crystal of main flow shows that module all can install LENS (lens) additional usually as the secondary optics element on LED at present, to satisfy brightness requirement and the uniformity coefficient requirement that the LED directly-down liquid crystal shows module.Because LED LENS directly-down liquid crystal shows that module is in development at present; Under the requirement of satisfying brightness, preferably reduce the quantity of the light emitting diode (LED LENS) of band lens as far as possible; Show the material cost of module to practice thrift LED LENS directly-down liquid crystal, yet be with the minimizing of the light emitting diode quantity of lens also can cause LED LENS directly-down liquid crystal to show that the uniformity coefficient of module is on the low side.
In addition; In order to reduce installation cost, usually whole LED LENS are arranged on the LED with same intervals, will make LED LENS directly-down liquid crystal show that the luminance uniformity of module is relatively poor thus; Therefore make the demand that this module can not be close to the users, the user experience effect is relatively poor.
The utility model content
The purpose of the utility model is, provides a kind of LCD TV and directly-down liquid crystal to show module, can when satisfying brightness requirement, improve uniformity coefficient, strengthens user's experience effect.
The technical scheme of the utility model is following:
A kind of directly-down liquid crystal shows module, comprises the light emitting diode and the reflector plate of backboard, band lens; Said light emitting diode is arranged on the bottom surface of said backboard; Said reflector plate is provided with the through hole that adaptive said light emitting diode passes; Said reflector plate is arranged in the said backboard, and said light emitting diode exposes from said through hole; Each angle of said reflector plate is provided with through hole, is used to expose the light emitting diode adaptive with said through hole that is arranged on said backboard bottom surface.
Preferably, said backboard bottom surface and said reflector plate all have four angles, on four angles of said backboard bottom surface, are provided with said light emitting diode; All correspondence is provided with said through hole on four angles of said reflector plate.
Preferably, the diode that is positioned on the said backboard bottom surface is divided into two groups at least, and each is organized said light emitting diode and is arranged on the same strip printed circuit board (PCB).
Preferably, being positioned at light emitting diode on each angle, said backboard bottom surface is separately positioned on the extension edge near the strip printed circuit board (PCB) of the edge of said backboard bottom surface.
Preferably, in the light emitting diode on each strip printed circuit board (PCB), the lateral separation between adjacent two light emitting diodes is less than or equal to 80mm.
Preferably, the interval between the adjacent strip galley is less than or equal to 130mm.
Preferably, the through hole on each angle of said reflector plate all is arranged between the 30mm to 60mm to the minimum lateral or the minimum fore-and-aft distance value range of said reflector plate bottom edge.
Preferably, the through hole that is positioned on the said reflector plate all is set to 50mm to the minimum lateral and the minimum fore-and-aft distance value of said reflector plate bottom edge.
The utility model also provides a kind of LCD TV, and frame and liquid crystal display module before comprising, said liquid crystal display module are set to above-mentioned directly-down liquid crystal and show module.
A kind of LCD TV that the utility model provided and directly-down liquid crystal show module, owing to adopted the light emitting diode (LED LENS) of on the angle of backboard bottom surface, laying the band lens, and when satisfying brightness requirement; Reduced the usage quantity of diffusion sheet; Practice thrift directly-down liquid crystal and shown the cost of module, but also obviously improved uniformity coefficient, eliminated dark angle; Strengthen the practicality of LED LENS directly-down liquid crystal demonstration module, improved user's experience effect.
Description of drawings
Fig. 1 is the partial layer structural representation that the utility model directly-down liquid crystal shows module.
Fig. 2 is that the utility model directly-down liquid crystal shows the LED LENS layout viewing that is arranged on the backboard bottom surface in the module.
Fig. 3 is that the utility model directly-down liquid crystal shows the reflector plate vertical view in the module.
Embodiment
Below will combine accompanying drawing, the embodiment and the embodiment of the utility model specified, described specific embodiment in order to explain the utility model, is not the embodiment that is used to limit the utility model only.
Fig. 1 is the partial layer structural representation that the utility model directly-down liquid crystal shows module, and a kind of LED LENS directly-down liquid crystal of the utility model shows that module comprises the light emitting diode (LED LENS) 190 of being with lens, backboard 170, reflector plate 160, diffuser plate 150, diffusion sheet 140, first brightening piece 130, second brightening piece 120 and liquid crystal panel (OPEN CELL) 110; The light emitting diode (LED LENS) 190 of band lens and connector (CONNECTOR) are welded on and constitute the lamp bar on the strip printed circuit board (PCB) (PCB) 180; The light emitting diode 190 of all band lens all with the assembled in forms of lamp bar on said backboard 170; Said reflector plate 160 and said backboard 170 are suitable; The bottom surface of said reflector plate 160 is provided with the through hole that the light emitting diode 190 of adaptive band lens passes through; When said reflector plate 160 is installed in the said backboard 170, expose the through hole of light emitting diode 190 from said reflector plate 160 of band lens, make said backboard 170 and said reflector plate 160 tablings; The bottom surface of said reflector plate 160 contacts with the upper surface of strip printed circuit board (PCB) 180; Said diffuser plate 150 is arranged on the top of light emitting diode 190 of band lens, and said diffusion sheet 140, first brightening piece 130 and second brightening piece 120 are successively set on the said diffuser plate 150, and said liquid crystal panel 110 is arranged on said second brightening piece 120.
In the present embodiment; The light emitting diode 190 of band lens is arranged on the bottom surface of said backboard according to PITCH (promptly with the interval between the light emitting diode 190 of the lens) value of setting; To reach the basic demand of brightness, simultaneously, the light emitting diode 190 of band lens is set respectively on each angle of said backboard bottom surface; Can improve the uniformity coefficient of light, and eliminate luminous dead angle to a certain extent.Preferably, said backboard 170 is a quadrilateral, and the reflector plate 160 adaptive with it also is quadrilateral, so this backboard 170 has four angles.
Further, the diode that is positioned on the said backboard bottom surface is divided into two groups at least, and each is organized said light emitting diode and is arranged on the same strip printed circuit board (PCB).Preferably, said diode is divided into three groups, and therefore 3 strip printed circuit board (PCB)s are arranged accordingly; Particularly, as shown in Figure 2, be that the utility model directly-down liquid crystal shows the LED LENS layout viewing that is arranged on the backboard bottom surface in the module; Said backboard 170 is a quadrilateral; 3 strip printed circuit board (PCB)s 180 can be set on said backboard 170 bottom surfaces be respectively the first strip printed circuit board (PCB) 181, the second strip printed circuit board (PCB) 182 and the 3rd strip printed circuit board (PCB) 183, wherein, be arranged at intervals with the light emitting diode 190 of band lens on each said strip printed circuit board (PCB) 180; Distance between the light emitting diode 190 of said adjacent band lens all equate (be in the band lens on four angles of said backboard light emitting diode 190 can except); Be px, wherein, the value of Px is smaller or equal to 80mm; The two ends of the said first said strip printed circuit board (PCB) 181 and the said the 3rd said strip printed circuit board (PCB) 183 are respectively arranged with extension edge; An angle of the corresponding said backboard 170 of the said extension edge of each bar; Wherein, be provided with the light emitting diode 190 of at least one band lens on the said extension edge, preferably; In the present embodiment, the light emitting diode 190 of band lens can be set on said extension edge.Wherein, the distance between the first strip printed circuit board (PCB) 181 and the second strip printed circuit board (PCB) 182 equals the distance between the second strip printed circuit board (PCB) 182 and the 3rd strip printed circuit board (PCB) 183, promptly is py, and wherein, the value of py is smaller or equal to 130mm.The big I of px and Py numerical value is set according to actual conditions, and generally speaking, the size of liquid crystal display module is more little, and Px value and Py value are just more little.
For the light emitting diode 190 that is arranged on four band lens on the angle; In conjunction with shown in Figure 3; Fig. 3 is that the utility model directly-down liquid crystal shows the reflector plate vertical view in the module; Corresponding, on four angles of said reflector plate 160, be respectively arranged with the through hole 169 that the light emitting diode 190 of adaptive band lens passes, the center of said through hole 169 is arranged between the 30mm to 60mm to the minimal transverse distance d1 value scope of said reflector plate 160 bottom edge; Said through hole 169 all is arranged between the 30mm to 60mm to the minimum fore-and-aft distance d2 value scope of said reflector plate 160 bottom edge; Preferably, when said minimum fore-and-aft distance d2 and lateral separation d1 are 50mm, can obviously improve the luminous uniformity coefficient of module backlight.
The result of test shows; Under the identical situation of light emitting diode 190 quantity of band lens; Be under the suitable situation of cost, light emitting diode 190 arrangement modes of the band lens that the utility model provided can improve uniformity coefficient more than 15% than the light-emitting diode arrangement mode of traditional band lens; And when d1 value and d2 value were equal to 50mm, LED LENS directly-down liquid crystal showed that the uniformity coefficient of module can reach more than 81%.
Show module based on above-mentioned LED LENS directly-down liquid crystal; The utility model has also proposed a kind of LCD TV; Frame and liquid crystal display module before comprising, wherein, said liquid crystal display module is set to the LED LENS directly-down liquid crystal described in above-mentioned each embodiment and shows module.
Compare with LCD TV of the prior art and LED directly-down liquid crystal demonstration module thereof, a kind of LCD TV that the utility model provided and directly-down liquid crystal show module, owing to adopted the light emitting diode of on the angle of backboard bottom surface, laying the band lens; When satisfying brightness requirement; Obviously improve uniformity coefficient, eliminated dark angle, strengthened the practicality that shows module; Strengthen user's experience effect; And reduced the usage quantity of diffusion sheet, and practiced thrift the cost that directly-down liquid crystal shows module, improved the market competitiveness that LED LENS directly-down liquid crystal shows module.
Should be understood that; The preferred embodiment that the above is merely the utility model is not sufficient to limit the technical scheme of the utility model, concerning those of ordinary skills; Within the spirit and principle of the utility model; Can increase and decrease according to above-mentioned explanation, replacement, conversion or improvement, and all these technical schemes all should belong to the protection domain of the utility model accompanying claims.
Claims (9)
1. a directly-down liquid crystal shows module, comprises the light emitting diode and the reflector plate of backboard, band lens; Said light emitting diode is arranged on the bottom surface of said backboard; Said reflector plate is provided with the through hole that adaptive said light emitting diode passes; Said reflector plate is arranged in the said backboard, and said light emitting diode exposes from said through hole; It is characterized in that: each angle of said reflector plate is provided with through hole, is used to expose the light emitting diode adaptive with said through hole that is arranged on said backboard bottom surface.
2. directly-down liquid crystal according to claim 1 shows module, and it is characterized in that: said backboard bottom surface and said reflector plate all have four angles, on four angles of said backboard bottom surface, are provided with said light emitting diode; All correspondence is provided with said through hole on four angles of said reflector plate.
3. directly-down liquid crystal according to claim 2 shows module, and it is characterized in that: the diode that is positioned on the said backboard bottom surface is divided into two groups at least, and each is organized said light emitting diode and is arranged on the same strip printed circuit board (PCB).
4. directly-down liquid crystal according to claim 3 shows module, it is characterized in that: be positioned at light emitting diode on each angle, said backboard bottom surface and be separately positioned on the extension edge near the strip printed circuit board (PCB) of the edge of said backboard bottom surface.
5. directly-down liquid crystal according to claim 4 shows module, and it is characterized in that: in the light emitting diode on each strip printed circuit board (PCB), the lateral separation between adjacent two light emitting diodes is less than or equal to 80mm.
6. show module according to claim 4 or 5 described directly-down liquid crystals, it is characterized in that: the interval between the adjacent strip galley is less than or equal to 130mm.
7. directly-down liquid crystal according to claim 6 shows module, and it is characterized in that: the through hole on each angle of said reflector plate all is arranged between the 30mm to 60mm to the minimum lateral or the minimum fore-and-aft distance value range of said reflector plate bottom edge.
8. directly-down liquid crystal according to claim 7 shows module, it is characterized in that: the through hole that is positioned on the said reflector plate all is set to 50mm to the minimum lateral and the minimum fore-and-aft distance value of said reflector plate bottom edge.
9. a LCD TV comprises preceding frame and liquid crystal display module, it is characterized in that: said liquid crystal display module is set to show module like each described directly-down liquid crystal in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205547030U CN202433648U (en) | 2011-12-27 | 2011-12-27 | Liquid crystal television and direct type liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205547030U CN202433648U (en) | 2011-12-27 | 2011-12-27 | Liquid crystal television and direct type liquid crystal display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433648U true CN202433648U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205547030U Expired - Fee Related CN202433648U (en) | 2011-12-27 | 2011-12-27 | Liquid crystal television and direct type liquid crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433648U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226936A (en) * | 2015-06-02 | 2016-12-14 | Lg电子株式会社 | Display device |
| CN108369953A (en) * | 2015-12-24 | 2018-08-03 | 索尼公司 | Imaging device and electronic equipment |
| CN114326214A (en) * | 2022-01-20 | 2022-04-12 | 阿纳克斯（苏州）轨道系统有限公司 | LED display backlight structure with fixed light-emitting angle |
| WO2024045287A1 (en) * | 2022-08-29 | 2024-03-07 | 瑞仪光电(苏州)有限公司 | Reflective sheet capable of expanding peripheral reflection area, backlight module, and display apparatus |
-
2011
- 2011-12-27 CN CN2011205547030U patent/CN202433648U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226936A (en) * | 2015-06-02 | 2016-12-14 | Lg电子株式会社 | Display device |
| CN108369953A (en) * | 2015-12-24 | 2018-08-03 | 索尼公司 | Imaging device and electronic equipment |
| CN108369953B (en) * | 2015-12-24 | 2022-12-16 | 索尼公司 | Imaging device and electronic apparatus |
| CN114326214A (en) * | 2022-01-20 | 2022-04-12 | 阿纳克斯（苏州）轨道系统有限公司 | LED display backlight structure with fixed light-emitting angle |
| WO2024045287A1 (en) * | 2022-08-29 | 2024-03-07 | 瑞仪光电(苏州)有限公司 | Reflective sheet capable of expanding peripheral reflection area, backlight module, and display apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20151227 |
|
| EXPY | Termination of patent right or utility model |