US 11,982,895 B2
Color filter substrate, method for manufacturing the same, and display panel
Shuyu Ke, Shenzhen (CN); and Haoxuan Zheng, Shenzhen (CN)
Assigned to HKC CORPORATION LIMITED, Shenzhen (CN)
Appl. No. 17/908,236
Filed by HKC Corporation Limited, Shenzhen (CN)
PCT Filed Dec. 22, 2021, PCT No. PCT/CN2021/140294
§ 371(c)(1), (2) Date Aug. 31, 2022,
PCT Pub. No. WO2022/166451, PCT Pub. Date Aug. 11, 2022.
Claims priority of application No. 202110159682.0 (CN), filed on Feb. 5, 2021.
Prior Publication US 2023/0122068 A1, Apr. 20, 2023
Int. Cl. G02F 1/1335 (2006.01)
CPC G02F 1/133516 (2013.01) [G02F 1/133512 (2013.01); G02F 2201/52 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A color filter substrate, comprising:
a substrate, comprising a display area and a non-display area, the non-display area surrounding the display area;
a black matrix layer, arranged on the substrate, wherein a groove is defined in the black matrix layer and is arranged around the display area;
a first filler, disposed inside the groove; and
a positioning mark, arranged inside the groove and having a different color than that of the first filler, and configured for a positioning purpose in a manufacturing process of the color filter substrate;
wherein the positioning mark and the first filler each have a color of blue or red.