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Perovskite microsphere, mixed-color optical conversion film, and displayer

A perovskite and microsphere technology, which is applied in the direction of luminescent materials, electric solid-state devices, semiconductor devices, etc., can solve the problems that hinder the wide application of perovskite materials and the stability of devices.

Active Publication Date: 2020-03-27
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the perovskite structure has the disadvantage of water and oxygen sensitivity, which makes the stability of devices based on this material a big problem, hindering the wide application of perovskite materials in the field of light-emitting displays.

Method used

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  • Perovskite microsphere, mixed-color optical conversion film, and displayer
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  • Perovskite microsphere, mixed-color optical conversion film, and displayer

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Embodiment Construction

[0040] In order to make the above content of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail in conjunction with the accompanying drawings.

[0041] In describing the present invention, it is to be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or components must have a particular orientation, be constructed and operate in a particular orientation and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", "third", etc. (if any) in the description and claims of the present disc...

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Abstract

The invention provides a perovskite microsphere, a mixed-color optical conversion film and a preparation method of the mixed-color optical conversion film, and a displayer. The red and green perovskite microspheres having a coating structure and provided by the invention are used as an optical conversion material of a white light OLED displayer, so that the photon utilization rate of an organic light-emitting material can be improved, the display power consumption is reduced, and the process difficulty and cost are reduced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a simple and efficient display structure. Background technique [0002] The down-conversion white organic light-emitting diode (OLED) display is to excite the green and red light conversion layers through the blue OLED to generate green light and red light, which are mixed with the transmitted blue light to form white light. Compared with the conventional pixelated OLED display Or an OLED display that makes white light pass through a color film to generate white light. The structure of this white OLED display is relatively simple. In order to improve the color purity and color gamut of this down-conversion white light OLED, it is necessary to develop light conversion materials with high luminous efficiency, narrow luminous peak, and wide color gamut. [0003] In recent years, perovskite materials have attracted much attention due to their advantages such as adjustable bandgap, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02C09K11/66H01L27/32H10K99/00
CPCC09K11/665C09K11/025H10K59/30H10K71/00Y02B20/00C09K11/02H10K59/38H10K2102/331H10K50/125H10K85/30
Inventor 胡智萍
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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