Title:
SLEW RATE ENHANCEMENT CIRCUIT, SOURCE DRIVER CHIP AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/127023
Kind Code:
A1
Abstract:
A slew rate enhancement circuit (60), a source driver chip and a display apparatus. The slew rate enhancement circuit (60) comprises: a first latch (101) for receiving and storing first data (D1); a second latch (102) for receiving and storing second data (D2), wherein the second data (D2) is the next piece of data of the first data (D1); a first level shifter (103); an amplifier (107); and a slew rate enhancement module (106) for receiving a high-voltage data signal (DH) and taking same as current input data, and adjusting the slew rate of an output stage of the amplifier (107) according to the value of a specified bit of the first data (D1), the value of a specified bit of the second data (D2) and the current input data.
Inventors:
PARK SANGMIN (CN)
NAM JANGJIN (CN)
NAM JANGJIN (CN)
Application Number:
PCT/CN2021/094639
Publication Date:
June 23, 2022
Filing Date:
May 19, 2021
Export Citation:
Assignee:
BEIJING ESWIN COMPUTING TECH CO LTD (CN)
HEFEI ESWIN IC TECH CO LTD (CN)
HEFEI ESWIN IC TECH CO LTD (CN)
International Classes:
G09G3/20
Foreign References:
| CN112542125A | 2021-03-23 | |||
| CN103377627A | 2013-10-30 | |||
| CN103731109A | 2014-04-16 | |||
| CN111613184A | 2020-09-01 | |||
| CN102346998A | 2012-02-08 | |||
| CN1485810A | 2004-03-31 | |||
| CN101630943A | 2010-01-20 | |||
| US10452088B1 | 2019-10-22 |
Attorney, Agent or Firm:
LIFANG & PARTNERS (CN)
Download PDF: