Title:
ELECTRIC SIGNAL DETECTION MODULE, DRIVE METHOD, PIXEL CIRCUIT AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/091268
Kind Code:
A1
Abstract:
An electric signal detection module, a drive method, a pixel circuit and a display apparatus. The electric signal detection module comprises an electric signal providing circuit (1), an operational amplifier (OP), a gain control circuit (15) and a main control circuit (16). The gain control circuit (15) comprises at least two stages of gain control sub-circuits connected in parallel to each other, and a discharging switch sub-circuit connected to the gain control sub-circuits in parallel; and the gain control sub-circuits comprise a gain switch sub-circuit and a gain capacitance sub-circuit connected in series to each other. The main control circuit (116) is configured to send a discharging switch signal to the discharging switch sub-circuit, and provide a gain switch control signal to the corresponding gain switch sub-circuit; the gain switch sub-circuit is configured to control, according to the gain switch control signal, the communication between a first end of the gain switch sub-circuit and a second end of the gain switch sub-circuit; and the discharging switch sub-circuit is configured to conduct or break, according to the discharging switch signal, a connection between a first end of a gain capacitance sub-circuit connected to the gain switch sub-circuit and a second end of the gain capacitance sub-circuit.
Inventors:
LIU WEI (CN)
DONG XUE (CN)
WANG HAISHENG (CN)
DING XIAOLIANG (CN)
LIU YINGMING (CN)
CHENG CHIH JEN (CN)
CAO XUEYOU (CN)
HAN YANLING (CN)
LI CHANGFENG (CN)
WANG PENGPENG (CN)
ZHANG PING (CN)
XU RUI (CN)
DONG XUE (CN)
WANG HAISHENG (CN)
DING XIAOLIANG (CN)
LIU YINGMING (CN)
CHENG CHIH JEN (CN)
CAO XUEYOU (CN)
HAN YANLING (CN)
LI CHANGFENG (CN)
WANG PENGPENG (CN)
ZHANG PING (CN)
XU RUI (CN)
Application Number:
PCT/CN2018/110640
Publication Date:
May 16, 2019
Filing Date:
October 17, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/3208
Foreign References:
| CN107749273A | 2018-03-02 | |||
| CN101950533A | 2011-01-19 | |||
| CN106328061A | 2017-01-11 | |||
| CN103384313A | 2013-11-06 | |||
| CN107086023A | 2017-08-22 | |||
| US20120086694A1 | 2012-04-12 | |||
| CN104700761A | 2015-06-10 |
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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