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. 25, 2025
Filed:
Jun. 04, 2024
E Ink Holdings Inc., Hsinchu, TW;
Chao-Chun Cheng, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A front light module includes a light guide plate, a light source, first waterproof layers, a second waterproof layer, and a third waterproof layer. An edge of the light guide plate has an extending portion. The light source is located on the edge of the light guide plate. There are two first waterproof layers respectively located on a bottom surface and a top surface of the light guide plate. The second waterproof layer has a concave portion. The light source is located between the second waterproof layer and the edge of the light guide plate, and the extending portion of the light guide plate extends into the concave portion of the second waterproof layer. The third waterproof layer is located in the concave portion of the second waterproof layer and surrounds the extending portion of the light guide plate.