US 12,271,023 B2
Method of manufacturing a middle bezel, backlight module, and display device thereof
Bing Li, Shenzhen (CN); Liqiang Liu, Shenzhen (CN); and Limin Xiao, Shenzhen (CN)
Assigned to SHENZHEN TCL DIGITAL TECHNOLOGY LTD., Shenzhen (CN)
Appl. No. 18/267,236
Filed by SHENZHEN TCL DIGITAL TECHNOLOGY LTD., Shenzhen (CN)
PCT Filed Aug. 19, 2021, PCT No. PCT/CN2021/113616
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2022/142387, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 202011603897.9 (CN), filed on Dec. 29, 2020.
Prior Publication US 2023/0384509 A1, Nov. 30, 2023
Int. Cl. F21V 8/00 (2006.01); G02F 1/1333 (2006.01)
CPC G02B 6/0088 (2013.01) [G02F 1/133314 (2021.01); G02F 1/133317 (2021.01); G02F 2202/28 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of manufacturing a middle bezel useful for a backlight module, comprising:
providing a bezel body, a film layer, and a hot-melt adhesive;
heating the hot-melt adhesive, coating the heated hot-melt adhesive on a side of the bezel body, and covering the heated hot-melt adhesive with the film layer, to obtain a film-covered bezel body; and
curing the heated hot-melt adhesive of the film-covered bezel body to obtain the middle bezel;
wherein a step of providing the bezel body comprises:
providing a section material; and performing a processing treatment and a prime coating treatment on the section material to obtain the bezel body; wherein a polyester-based primer is used in the prime coating treatment, and the processing treatment comprises: processing a pre-foldable line and/or a V-shape notch capable of bending.