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:
Aug. 22, 2023
Filed:
Aug. 26, 2021
E Ink Holdings Inc., Hsinchu, TW;
Ching-Huan Liao, Hsinchu, TW;
Yi-Yu Tsai, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A light source device is used to generate illumination light and includes a plurality of light emitting components, at least one first fluorescent part, and at least one second fluorescent part. Each light emitting component is used to emit light. The first fluorescent part is disposed on at least one of the light emitting components and able to convert the light to first white light having a first color temperature. The second fluorescent part is disposed on at least one of the other light emitting components and able to convert the light to second white light having a second color temperature. The illumination light includes the first white light and the second white light, where the maximum difference between the first color temperature and the second color temperature is greater than or equal to 2000K.