Display panel and method of manufacturing thereof
US10964764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Aug 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/166
Abstract
A display panel and a method of manufacturing thereof are provided. The pixel defining block is formed by one-time exposing the column spacer column and the bank with a halftone mask, thereby omitting the process of individually forming the bank, and manufacturing time and manufacturing cost are reduced. The organic functional layer disposed above the bank is not directly contacted with the first electrode due to the bank structure, and the bank causes the defined region to be disconnected from the first electrode, and no current flows through the defined region. Thus, the defined region does not emit light, and the pixel region emits uniform light. The material of the bank is an organic photoresist, so hydrogen and oxygen are not introduced into the bank, and therefore not affect the thin film transistor, and improves stability of the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.