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:
Feb. 10, 2026
Filed:
Apr. 02, 2024
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;
Abstract
A direct-lit backlight module, a method of designing a backlight module and a display device are provided. The direct-light backlight module includes a substrate; an optical film layer; a reflector; and light-emitting elements. The substrate and the optical film layer are arranged oppositely; the light-emitting elements are arranged on a side of the substrate facing the optical film layer; the reflector is located between the substrate and the optical film layer and includes reflective structures surrounding the light-emitting elements; there is a gap between the reflective structures and the optical film layer, and there is air in the gap. In the thickness direction of the backlight module, a distance between one end of the reflective structure adjacent to the optical film layer and the optical film layer is OD1, and the distance between the substrate and the optical film layer is OD; and and 0.4≤X<0.6.