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:
Dec. 23, 2025
Filed:
Oct. 25, 2024
Radiant Opto-electronics Corporation, Kaohsiung, TW;
Radiant Opto-Electronics Corporation, Kaohsiung, TW;
Abstract
A backlight module has a first side viewing angle luminance LAS1 and a first normal viewing angle luminance LAN1 in the side viewing mode, wherein LAS1/LAN1>50%. The backlight module has a second side viewing angle luminance LAS2 and a second normal viewing angle luminance LAN2 in the narrow viewing mode, wherein LAS2/LAN2<0.5%. The first side angle and the second side angle occur in a slanting direction. The first normal view and the second normal view occur in a normal direction. When executing a side viewing execution step, an upper backlight unit and a lower backlight unit are activated to form the side viewing mode. When executing a narrow viewing execution step, the upper backlight unit is turned off and the lower backlight unit is activated to form the narrow viewing mode. The invention also provides a display device including the backlight module.