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:
Apr. 05, 2022
Filed:
Oct. 29, 2020
Lextar Electronics Corporation, Hsinchu, TW;
Kiet Tuong Ly, Hsinchu, TW;
Fu-Hsin Chen, Hsinchu, TW;
Yi-Ting Tsai, Hsinchu, TW;
Hung-Chia Wang, Hsinchu, TW;
Chia-Chun Hsieh, Hsinchu, TW;
Hung-Chun Tong, Hsinchu, TW;
Yu-Chun Lee, Hsinchu, TW;
Tzong-Liang Tsai, Hsinchu, TW;
Lextar Electronics Corporation, Hsinchu, TW;
Abstract
A low blue light backlight module configured to emit a white light is provided. The low blue light backlight module includes a first light-emitting element, a second light-emitting element, a third light-emitting element and a fourth light-emitting element. The first light-emitting element is configured to emit a first light having a peak emission wavelength of about 610-660 nm. The second light-emitting element is configured to emit a second light having a peak emission wavelength of about 520-550 nm. The third light-emitting element is configured to emit a third light having a peak emission wavelength of about 480-580 nm. The fourth light-emitting element is configured to emit a fourth light having a peak emission wavelength of about 445-470 nm. The white light has an emission spectrum, and an area ratio of the spectrum under wavelength of 415-455 nm to the spectrum under wavelength of 400-500 nm is below 50%.