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:
Nov. 12, 2024
Filed:
Nov. 01, 2023
E Ink Holdings Inc., Hsinchu, TW;
Yi-Yu Tsai, Hsinchu, TW;
Ching-Huan Liao, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A light source module includes a light guide plate including a light entrance surface and a light source adjacent to the light entrance surface. The light source includes a light emitting device to emit a blue light, a first wavelength conversion unit on the light emitting device and a second wavelength conversion unit on the light emitting unit. When the blue light is incident to the first wavelength conversion unit, the blue light is converted into a first light. The first light has a wavelength in a range from 480 nm to 650 nm. When the blue light is incident to the second wavelength conversion unit, the blue light is converted to a second light. The second light has a wavelength different from the wavelength of the first light. The blue light, the first light and the second light combine to produce a white light.