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High color gamut white light LED and backlight module group

A high color gamut, white light technology, applied in electrical components, circuits, semiconductor devices, etc., can solve problems such as low reliability, high LED power, and shortened life of quantum dot materials, and achieve the effect of improving reliability

Inactive Publication Date: 2017-11-07
HISENSE VISUAL TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

However, due to the high power of the LED used in the backlight module of the LCD TV, and the blue light radiation energy and high junction temperature on the surface of the blue light chip are likely to shorten the life of the quantum dot material, so the reliability of encapsulating the quantum dot material into the LED has been low

Method used

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  • High color gamut white light LED and backlight module group
  • High color gamut white light LED and backlight module group
  • High color gamut white light LED and backlight module group

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Embodiment Construction

[0015] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0016] see image 3 , image 3 It is a schematic diagram of the packaging structure of the high color gamut white LED of the present invention. The present invention proposes a high color gamut white light LED 10, and the high color gamut white light LED 10 is applied to a backlight module (not shown in the figure) of a liquid crystal television to realize a high color gamut display. The packaging structure of the high color gamut white LED 10 includes, from bottom to top, a blue chip 1 , a heat insulating layer 2 , a green fluorescent material layer 3 and a red quantum dot material layer 4 . Specifically, the green fluorescent material layer 3 includes a first substrate 31 and a green fluorescent powder 32 mixed in the first substrate 31 . The red quantum dot material layer 4 includes a second substrate 41 and a red quantum dot material 42 mixed in the second subs...

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Abstract

The invention provides a high color gamut white light LED and a backlight module group. The packaging structure of the high color gamut white light LED comprises a blue light chip, a thermal insulation layer, a green fluorescent material layer and a red quantum dot material layer which are arranged from the bottom to the top in turn, wherein the green fluorescent material layer comprises first base material and green phosphor which is mixed in the first base material, and the red quantum dot material layer comprises second base material and red quantum dot material which is mixed in the second base material. The reliability of packaging the quantum dot material in the LED can be effectively enhanced.

Description

technical field [0001] The invention relates to a packaging structure of LEDs, in particular to a packaging structure of high color gamut white LEDs. Background technique [0002] The color gamut that can be displayed by a general LCD TV is not large, and its display color gamut is generally around 68% to 72% NTSC (National Television System Committee, National Television System Committee), so it cannot provide good color effects. With the improvement of consumers' requirements for image quality, high color gamut backlight technology is becoming the focus of research in the industry. For example, the ULED product launched by Hisense has a color gamut of more than 100% NTSC and outstanding color expression. It can be expected that the market is looking forward to the emergence of LCD TVs with a higher color gamut. [0003] At present, the backlight solution with the highest color gamut on LCD TVs is to use blue light to excite quantum dot materials to produce white light, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/48H01L33/58
CPCH01L33/48H01L33/58
Inventor 曹晓梅高上张志睿
Owner HISENSE VISUAL TECH CO LTD
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