Display panel and display device

US11988923B2 · kind B2 · utility

Assignees

• MIANYANG HKC OPTOELECTRONICS TECHNOLOGY CO., LTD · CN
• HKC CORPORATION LIMITED · CN

Inventors

• Liu He · Beijing, CN
• Keming Yang · Mianyang, CN
• Rong Tang · Mianyang, CN
• Yizhen Xu · Beijing, CN
• Feng Jiang · Santa Clara, US
• Baohong Kang · Lo Wu, CN

Key dates

• Filing date: Dec 23, 2022
• Grant date: May 21, 2024
• Expiry date: Dec 23, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/1339
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A display panel and a display device are disclosed. The display panel includes a first substrate, a second substrate, and a liquid crystal layer disposed therebetween. The first substrate includes a first base and a planarization layer disposed on a side of the first substrate adjacent to the liquid crystal layer. A side of the planarization layer adjacent to the liquid crystal layer includes a textured structure, which includes at least one groove path. The first substrate further includes a bottom edge. An extending direction of the at least one groove path forms an included angle with the bottom edge, the included angle being greater than or equal to 45 degrees and less than or equal to 135 degrees. A liquid crystal material in the liquid crystal layer diffuses along the extending direction of the groove path through the groove path based on capillary phenomenon.