Title:
GOA CIRCUIT OF DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2020/024409
Kind Code:
A1
Abstract:
Disclosed is a GOA circuit of a display panel. The GOA circuit of a display panel comprises multiple cascaded GOA units, n and m are set as natural numbers, and a pull-up control circuit of an nth level of the GOA unit comprises: a first thin-film transistor (T1), wherein a gate electrode is connected to an (n+m)th level horizontal scanning signal (G(n+1)), and a source electrode and a drain electrode are respectively connected to a high potential (Vgh) and a gate signal point (Q(n)); and a second thin-film transistor (T2), wherein a gate electrode is in a suspended state and reserves a welding point for connecting a start signal (STV), and a source electrode and a drain electrode are respectively connected to the high potential (Vgh) and the gate signal point (Q(n)); and a pull-down control circuit comprises: a third thin-film transistor (T4), wherein a gate electrode is connected to an (n-m)th level horizontal scanning signal (G(n-1)), and a source electrode and a drain electrode are respectively connected to an nth level horizontal scanning signal (G(n)) and a low potential (Vss); and a fourth thin-film transistor (T5), wherein a gate electrode is connected to the (n-m)th level horizontal scanning signal (G(n-1)), and a source electrode and a drain electrode are respectively connected to the gate signal point (Q(n)) and the low potential (Vss). The solution optimizes GOA circuit architecture design, and realizes that a display panel can be cut into strip-shaped screens with any length-width ratios.
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Inventors:
DU PENG (CN)
Application Number:
PCT/CN2018/107762
Publication Date:
February 06, 2020
Filing Date:
September 26, 2018
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
International Classes:
G09G3/36
Foreign References:
| CN104537991A | 2015-04-22 | |||
| CN107992229A | 2018-05-04 | |||
| CN107463041A | 2017-12-12 | |||
| CN105632564A | 2016-06-01 | |||
| CN103295516A | 2013-09-11 |
Attorney, Agent or Firm:
COMIPS INTELLECTUAL PROPERTY OFFICE (CN)
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