Display substrate having a black matrix with a curved surface, method for manufacturing the same and display device

US9978995B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Jingang Fang · Beijing, CN
• Wulin Shen · Beijing, CN
• Hongda Sun · Beijing, CN
• Chun-I Lin · Taoyuan, TW

Key dates

• Filing date: Mar 14, 2016
• Grant date: May 22, 2018
• Expiry date: Mar 14, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/13

Abstract

A display substrate having a black matrix with a curved surface, a method for manufacturing the same and a display device are provided. The display substrate includes a black matrix disposed between adjacent pixels, wherein a sidewall of the black matrix is a concave curved surface. During the formation of a color film, since the sidewall of the black matrix is formed as a concave curved surface, color film droplets in one sub-pixel may return into the sub-pixel along the curved surface while splashing to the sidewall of the black matrix, thereby the contamination to adjacent pixels caused by the droplets splashing may be avoided, and a yield of the substrate may be ensured.