Title:
PIXEL CIRCUIT, DISPLAY SUBSTRATE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/019590
Kind Code:
A1
Abstract:
A pixel circuit (200, 300 and 500), comprising: a light-emitting device (OLED); a drive circuit (T0), used to respond to the electric potential at a first node (N1) so as to control the amount of drive current (Id) that is supplied to the light-emitting device (OLED) from a first power source (ELVDD); a storage capacitor (Cst), used to respond to a change in electric potential at a second node (N2) so as to cause a change in the electric potential at the first node (N1), wherein the electric potential at the second node (N2) may be switched between a first reference voltage (Vref) from a first reference power source (VREF) and a data voltage (Vdata) from a data cable (D(m)); and a compensatory capacitor (Cco), used to inhibit a change in the drive current (Id) caused by the change in the first reference voltage (Vref).
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Inventors:
XUAN MINGHUA (CN)
Application Number:
PCT/CN2018/074694
Publication Date:
January 31, 2019
Filing Date:
January 31, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/3225
Foreign References:
| CN206194348U | 2017-05-24 | |||
| CN1591104A | 2005-03-09 | |||
| CN101996579A | 2011-03-30 | |||
| CN105206221A | 2015-12-30 | |||
| CN105989796A | 2016-10-05 | |||
| CN106710526A | 2017-05-24 | |||
| CN205828388U | 2016-12-21 | |||
| US20160189635A1 | 2016-06-30 |
Other References:
See also references of EP 3660826A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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