CN201844276U - LED (light-emitting diode) backlight module, display and TV (television) - Google Patents
LED (light-emitting diode) backlight module, display and TV (television) Download PDFInfo
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- CN201844276U CN201844276U CN2010202723163U CN201020272316U CN201844276U CN 201844276 U CN201844276 U CN 201844276U CN 2010202723163 U CN2010202723163 U CN 2010202723163U CN 201020272316 U CN201020272316 U CN 201020272316U CN 201844276 U CN201844276 U CN 201844276U
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- backlit module
- substrate
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- led array
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Abstract
The utility model is suitable for the lighting field, and provides an LED (light-emitting diode) backlight module, a display and a TV (television), wherein the backlight module comprises a substrate, a plurality of LED chips and a cover board, wherein the LED chips are welded on the substrate by a die bonding wire, the cover board is fixedly arranged on the substrate, the cover board is provided with a plurality of reflection cups, at least one LED chip is arranged in the reflection cup, a packaging material is filled in the reflection cup to form an LED lighting unit, the LED backlight module comprises a plurality of LED arrays formed by LED lighting units, the LED arrays are accessed into an external driving power supply, the LED arrays are electrically connected with an external control circuit, and the external control circuit controls the light and shade of LED lighting units in the LED arrays to simultaneously change. The LED backlight module comprises the LED arrays, the LED arrays are formed by the LED lighting units, the external control circuit controls the light and shade of the LED lighting units in the LED arrays to simultaneously change, the operation and control are easy, and the contrast of the LED backlight module can be improved.
Description
Technical field
The utility model belongs to lighting field, relates in particular to a kind of LED-backlit module, display and television set.
Background technology
Many weeks, LED is as the new generation of green lighting source, has numerous advantages such as light efficiency height, life-span are long, bright in luster, energy-saving and environmental protection, and application is more and more widely grown as indoor and outdoor lighting, backlight, medical treatment, traffic, plant etc.
LED is applied to backlight, and wherein with the fastest developing speed is the television set industry.And the contrast of LED-backlit module is difficult to control in the existing TV, causes its contrast low.
The utility model content
The purpose of the utility model embodiment is to provide a kind of LED-backlit module, is intended to solve the contrast that has module backlight now and is difficult to control, the problem that contrast is low.
The utility model embodiment is achieved in that a kind of LED-backlit module, comprises that substrate, solid crystalline substance are wired in a plurality of led chips of described substrate and are fixedly arranged on cover plate on the described substrate, and described cover plate has a plurality of reflectors; At least one led chip is located in the described reflector, and encapsulating material is filled in described reflector and forms the LED luminescence unit, and described LED-backlit module has a plurality of led array of being made up of a plurality of LED luminescence units; Each led array inserts external drive power supply, each led array and be electrically connected with external control circuit that LED luminescence unit light and shade in the described led array of control changes simultaneously.
In the utility model embodiment, the upper surface of described substrate is printed with the driver circuit that is electrically connected with described led chip, and the lower surface of described substrate is provided with the pad that is electrically connected with described external control circuit.
Another purpose of the utility model embodiment is to provide a kind of display, and described display adopts above-mentioned LED-backlit module.
Another purpose of the utility model embodiment is to provide a kind of television set, and described television set has aforementioned display device.
This LED-backlit module has a plurality of led array, led array is made up of a plurality of LED luminescence units, by external control circuit control led array the LED luminescence unit light and shade in the led array is changed simultaneously, be easy to control, help to improve the contrast of LED-backlit module.
Description of drawings
Fig. 1 is the front view of the LED-backlit module that provides of the utility model embodiment;
Fig. 2 is the rearview of the LED-backlit module that provides of the utility model embodiment;
Fig. 3 is the side-looking enlarged drawing of the LED-backlit module that provides of the utility model embodiment;
Fig. 4 is the profile of the LED-backlit module that provides of the utility model embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Among the utility model embodiment, the LED-backlit module has a plurality of led array, led array is made up of a plurality of LED luminescence units, by external control circuit control led array the LED luminescence unit light and shade in the led array is changed simultaneously, be easy to control and help to improve the contrast of LED-backlit module.
The LED-backlit module that the utility model embodiment provides comprises that substrate, solid crystalline substance are wired in a plurality of led chips of described substrate and are fixedly arranged on cover plate on the described substrate, and described cover plate has a plurality of reflectors; At least one led chip is located in the described reflector, and encapsulating material is filled in described reflector and forms the LED luminescence unit, and described LED-backlit module has a plurality of led array of being made up of a plurality of LED luminescence units; Each led array inserts external drive power supply, each led array and be electrically connected with external control circuit that LED luminescence unit light and shade in the described led array of control changes simultaneously.
The display that the utility model embodiment provides adopts above-mentioned LED-backlit module.
The television set that the utility model embodiment provides has aforementioned display device.
Below in conjunction with specific embodiment realization of the present utility model is described in detail.
Shown in Fig. 1～4, the LED-backlit module that the utility model embodiment provides comprises that substrate 1, solid crystalline substance are wired in a plurality of led chips 2 of substrate and are fixedly arranged on cover plate 3 on the substrate, and the bonding or injection moulding of cover plate 3 is in substrate 1.The upper surface of substrate 1 is printed with the driver circuit that is electrically connected with led chip 2, and the lower surface of substrate 1 is provided with the pad 4 that is electrically connected with external control circuit.
Above-mentioned cover plate 3 has a plurality of reflectors 31, and the inner surface of reflector 31 is the conical surface, and the angle that this conical surface and substrate are 1 is 120 °.Solid brilliant bonding wire has one or more led chips 2 in the reflector 31, and encapsulating material is filled in reflector 31 and forms LED luminescence unit 5, and encapsulating material is the silica gel that contains fluorescent material.Led chip 2 is blue light or ultraviolet light chip, therewith correspondingly, is evenly equipped with the light that the fluorescent material that is complementary with led chip 2 produces required color in the silica gel, produces white light as blue-light LED chip and yellow fluorescent powder coupling.
Among the utility model embodiment, driver circuit is electrically connected a plurality of LED luminescence units 5 and forms led array 6, promptly forms 1 * 2 led array as two adjacent LED luminescence units are cascaded, and LED-backlit module then shown in Figure 1 has eight led array; Four adjacent LED luminescence units are cascaded promptly forms 2 * 2 led array, and LED-backlit module then shown in Figure 1 has four led array.Backlight with respect to side, it is more even that the led array 6 with equal number LED luminescence unit 5 is distributed in the light that substrate 1 sends the LED-backlit module.Cover plate 3 can be made by the white material with high reflectance, as PPA (Polyphosphoric Acid, polyphosphoric acids), PA (polyamide is commonly called as nylon), PVC (Polyvinylchloride, polyvinyl chloride); Also can make, as PC (Polycarbonate, Merlon), glass by transparent material.The thickness of made cover plate 3 is 1～20 times of thickness of led chip 2.
Should be appreciated that 5 parallel connections of LED luminescence unit, series connection or series-parallel connection in each led array 6, only need the interior LED luminescence unit light and shade of array to change simultaneously and get final product.
The utility model embodiment also inserts the external drive power supply by above-mentioned pad 4 with each led array 6, and the light and shade of being regulated each led array 6 by external control circuit changes, and has promoted the contrast of LED-backlit module greatly.
Obviously, identical size and power LED module backlight, the led array that has is many more, and contrast is high more.
For strengthening the radiating effect of LED-backlit module, promptly set firmly led chip 2 parts in substrate 1 solid brilliant part and be embedded with the heavy copper 11 of through hole, led chip 2 is fixedly arranged on the heavy copper 11 of through hole by heat-conducting glue.
This LED-backlit module has a plurality of led array, led array is made up of a plurality of LED luminescence units, by external control circuit control led array the LED luminescence unit light and shade in the led array is changed simultaneously, be easy to control, help to improve the contrast of LED-backlit module.Simultaneously, it is more even that led array is distributed in the light that substrate sends the LED-backlit module.In addition, led chip is fixedly arranged on the heavy copper of through hole, has strengthened radiating effect.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. LED-backlit module comprises that substrate, solid crystalline substance are wired in a plurality of led chips of described substrate and are fixedly arranged on cover plate on the described substrate, and described cover plate has a plurality of reflectors; At least one led chip is located in the described reflector, and encapsulating material is filled in described reflector and forms the LED luminescence unit, it is characterized in that described LED-backlit module has a plurality of led array of being made up of a plurality of LED luminescence units; Each led array inserts external drive power supply, each led array and be electrically connected with external control circuit that LED luminescence unit light and shade in the described led array of control changes simultaneously.
2. LED-backlit module as claimed in claim 1 is characterized in that the upper surface of described substrate is printed with the driver circuit that is electrically connected with described led chip, and the lower surface of described substrate is provided with the pad that is electrically connected with described external control circuit.
3. LED-backlit module as claimed in claim 2 is characterized in that, the LED luminescence unit in the described led array is via described driver circuit parallel connection, series connection or series-parallel connection.
4. LED-backlit module as claimed in claim 2 is characterized in that, described led array inserts described external drive power supply via described pad.
5. LED-backlit module as claimed in claim 1 is characterized in that described led array is distributed in described substrate.
6. LED-backlit module as claimed in claim 1 is characterized in that, described substrate is embedded with the heavy copper of through hole, and described led chip is fixedly arranged on the heavy copper of described through hole.
7. LED-backlit module as claimed in claim 1 is characterized in that, described led array is 2 * 2LED array, and four adjacent LED luminescence unit serial or parallel connections form described 2 * 2LED array.
8. a display is characterized in that, described display adopts as each described LED-backlit module of claim 1～7.
9. a television set is characterized in that, described television set has display as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202723163U CN201844276U (en) | 2010-07-27 | 2010-07-27 | LED (light-emitting diode) backlight module, display and TV (television) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202723163U CN201844276U (en) | 2010-07-27 | 2010-07-27 | LED (light-emitting diode) backlight module, display and TV (television) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844276U true CN201844276U (en) | 2011-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202723163U Expired - Fee Related CN201844276U (en) | 2010-07-27 | 2010-07-27 | LED (light-emitting diode) backlight module, display and TV (television) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354693A (en) * | 2011-10-25 | 2012-02-15 | 佛山市国星光电股份有限公司 | Capsulation structure of surface light source including a plurality of reflection cups |
| CN103363398A (en) * | 2012-03-26 | 2013-10-23 | 三星显示有限公司 | Backlight assembly |
-
2010
- 2010-07-27 CN CN2010202723163U patent/CN201844276U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354693A (en) * | 2011-10-25 | 2012-02-15 | 佛山市国星光电股份有限公司 | Capsulation structure of surface light source including a plurality of reflection cups |
| CN102354693B (en) * | 2011-10-25 | 2013-07-31 | 佛山市国星光电股份有限公司 | Capsulation structure of surface light source including a plurality of reflection cups |
| CN103363398A (en) * | 2012-03-26 | 2013-10-23 | 三星显示有限公司 | Backlight assembly |
| CN103363398B (en) * | 2012-03-26 | 2016-11-23 | 三星显示有限公司 | Backlight assembly |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20170727 |