The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2018
Filed:
Dec. 30, 2015
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, CN;
Tao Hu, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The present invention provides a display device, which includes a color filter, a quantum dot (QD)-injected photonic crystal film, and a backlight module. The QD-injected photonic crystal film is formed by injecting QDs into a photonic crystal film. Due to the light guiding effect of the photonic crystal, the light emission efficiency of the QDs can be effectively improved. The photonic crystal film includes red, green, and blue light transmission zones. The QDs injected into red, green, and blue light transmission zones of the photonic crystal film are respectively red, green, and blue QDs, so that when white mixed light emitting from the backlight source reaches the QD-injected photonic crystal film, light transmission zones of the photonic crystal film allow only light of corresponding colors to pass such that the QDs contained therein emit light of corresponding colors. Further, these colors of light respectively transmit through the color filters of corresponding colors. Light of other colors is reflected back by the photonic crystal film to be subjected to scattering and re-reflection by the optical film for being subsequently allowed to transmit through the other two light transmission zones of photonic crystal film.