Display panel

US12144220B2 · kind B2 · utility

Assignees

• WUHAN TIANMA MICROELECTRONICS CO., LTD. · CN
• WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH · CN

Inventors

• Yu Xin · Nanhu, CN
• Kang Yang · Nanhu, CN
• Lijing Han · 红钢城街道, CN
• Xian Chen · Shanghai, CN

Key dates

• Filing date: Mar 20, 2023
• Grant date: Nov 12, 2024
• Expiry date: Mar 20, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/65

Abstract

A display panel having a first display region and a second display region is provided. The display panel includes sub-pixels. Light transmittance of a non-light-emitting region in the second display region is greater than light transmittance of a non-light-emitting region in the first display region. For a first sub-pixel of the sub-pixels located in the first display region and a second sub-pixel of the sub-pixels located in the second display region that emit a same color, the first sub-pixel corresponds to a first pixel circuit, and the second sub-pixel corresponds to a second pixel circuit, and a width-to-length ratio of a driving transistor in the second pixel circuit is greater than a width-to-length ratio of a driving transistor in the first pixel circuit.