Light-emitting diode light source module and application thereof
A technology of light-emitting diodes and light source modules, which is applied to light-emitting diode light source modules and their application fields on backlight modules and liquid crystal displays, and can solve the problem of bright and dark areas of backlight modules, difficulties in reducing the cost of light-emitting diode light sources, and color problems. inequality problem
Active Publication Date: 2013-07-31
INNOLUX CORP
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Problems solved by technology
Once the light-emitting diode backlight module is doped with light-emitting diode chips outside the specification range, the backlight module is prone to produce bright and dark areas or uneven colors
On the other hand, the design of the LED backlight module with a small specification range will make it difficult to reduce the cost of the LED light source, and it will not be mass-producible.
Method used
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[0035] The invention discloses a light-emitting diode light source module and its application, which can use light-emitting diode chips with a wide range of specifications, thereby effectively reducing costs and improving mass production. In order to make the narration of the present invention more detailed and complete, refer to the following description and cooperate Figure 2A to Figure 8.
[0036] Please refer to Figure 2A to Figure 2C ,in Figure 2A to Figure 2C It is a graph showing the relationship between the driving current (IF) and the wavelength of the blue LED chip, the green LED chip and the red LED chip respectively. Under different driving currents, the light-emitting wavelengths of the blue, green and red light-emitting diode chips will all change. Such as Figure 2A and Figure 2B As shown, the light-emitting wavelength of the blue and green light-emitting diode chips will have a short shift when the driving current is large, that is, the light-emitting wa...
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Abstract
The invention relates to a light-emitting diode (LED) light source module and an application thereof. The light-emitting diode light source module at least comprises a first light-emitting diode unit of a first color system, which comprises at least one first light-emitting diode chip; and a second light-emitting diode unit of the first color system, which comprises at least one second light-emitting diode chip, wherein when the same driving current is imposed on the first light-emitting diode chip and the second light-emitting diode chip, the first light-emitting diode chip and the second light-emitting diode chip belong to a first specification range and a second specification range respectively, and the first specification range and the second specification range have different opticalspecifications.
Description
technical field [0001] The present invention relates to a light source module and its application, and in particular to a light-emitting diode (LED) light source module and its application on a backlight module and a liquid crystal display. Background technique [0002] Most of the current backlight modules of liquid crystal displays use cold cathode tubes (CCFL) as the light source. Because cold cathode tubes have the advantages of mature development and low price, they are widely used in the market. However, cold-cathode tubes have poor color rendering, need high-voltage drive, contain mercury (Hg) which is not conducive to environmental protection, the light-emitting spectrum includes ultraviolet (UV) bands, slow start-up speed, and the tube is fragile , and difficult to control chroma and other issues. Therefore, the search for a new light source has become one of the very important topics in the development of a new generation of liquid crystal display backlight syste...
Claims
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IPC IPC(8): F21S2/00H05B37/00G02F1/13357F21Y101/02
Inventor 白维铭
Owner INNOLUX CORP