Quantum dot LED package structure

A technology of LED packaging and quantum dots, which is applied in the direction of electrical components, circuits, semiconductor devices, etc., can solve the problems of difficult liquid crystal display narrow frame display, blue color shift at the edge of backlight, and decrease in fluorescence efficiency, so as to improve luminous efficiency and service life , easy to display with narrow borders, good heat dissipation effect
CN107565003AActive Publication Date: 2018-01-09SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
Publication Date
2018-01-09

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Abstract

The invention provides a quantum dot LED package structure which includes a nonmetal bracket, an LED chip, a first barrier layer, a quantum dot silica gel layer, a second barrier layer, and an undopedsilica gel layer. The quantum dot silica gel layer can improve the color gamut and color saturation of a liquid crystal display. The first barrier layer can radiate the LED chip and stop outside water oxygen from invading the LED chip. The second barrier layer can stop outside water oxygen from invading the quantum dot silica gel layer and the LED chip and achieve a further radiating effect. Thus, the quantum dot LED package structure of the invention provides an environment isolated from water oxygen and having a good radiating effect for quantum dots, and can improve the luminescence efficiency and service life of quantum dots. Compared with the existing quantum dot LED package structure, the quantum dot LED package structure of the invention has high reliability and low production cost, and can help to easily realize a narrow-bezel liquid crystal display.
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Description

Technical field

[0001] The invention relates to the field of display technology, in particular to a quantum dot LED packaging structure. Background technique

[0002] With the development of semiconductor lighting technology, light-emitting diodes (LEDs) as backlights have been widely used in the fields of tablet computers, notebook computers, liquid crystal displays, large-size LCD TVs, and indoor and outdoor lighting.

[0003] At present, white light LEDs are commonly used as backlight sources in liquid crystal display devices, and the most common white light LED is the structure of blue light emitting chip plus yellow YAG phosphor. The color saturation of the LCD screen using this LED is low (generally 72% NTSC Color gamut), the color is not bright enough. In order to improve the color saturation, the yellow phosphor is usually changed to red-green (RG) phosphor, but this method can only increase the color gamut by about 25% (90% NTSC color gamut) , Can not meet the new BT.2020...

Claims

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