Title:
ACTIVE MATRIX SUBSTRATE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/044546
Kind Code:
A1
Abstract:
An active matrix substrate is provided with a demultiplexer circuit provided on the periphery. Each simple circuit in the demultiplexer circuit distributes a display signal from one signal output line to n source bus lines (n is an integer of 2 or greater). Each simple circuit includes n branch lines and n switching TFTs for individually controlling the on and off of electrical connections between the branch lines and the source bus lines. The demultiplexer circuit includes a plurality of booster circuits capable of increasing the voltage applied to the gate electrode of the switching TFT. Each booster circuit includes: a set-and-reset unit that performs a set operation for pre-charging a node connected to a gate electrode and a reset operation for resetting the potential of the node at mutually different times; and a booster unit that boosts the potential of the node pre-charged by the set operation.
Inventors:
YAMAMOTO KAORU
Application Number:
PCT/JP2018/030540
Publication Date:
March 07, 2019
Filing Date:
August 17, 2018
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G09G3/36; G02F1/133; G02F1/1368; G09G3/20
Foreign References:
| JP2005182034A | 2005-07-07 | |||
| JPH1145072A | 1999-02-16 | |||
| CN104409044A | 2015-03-11 | |||
| JP2009122157A | 2009-06-04 | |||
| JP2009134055A | 2009-06-18 | |||
| JP2012008224A | 2012-01-12 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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