Title:
DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2022104536
Kind Code:
A
Abstract:
To control a pixel circuit with less control signals.SOLUTION: A drive circuit controls a pixel circuit with control signal pulses. In a threshold compensation period, a threshold compensation transistor is held ON to write a threshold compensation voltage. In a data write period after the threshold compensation period, a data signal is written. A pulse width of control signal pulses is at least twice as long as the data write period. The drive circuit turns a first transistor ON with a starting edge of a first control pulse before the data write period starts, holds the first transistor ON and turns a second transistor ON with a starting edge of a second control signal pulse after the threshold compensation period ends so as to start the data write period, and turns the first transistor OFF with an ending edge of the first control signal pulse to end the data write period.SELECTED DRAWING: Figure 3
Inventors:
SHIMODA MASAMICHI
YANASE JIRO
MATSUEDA YOJIRO
YANASE JIRO
MATSUEDA YOJIRO
Application Number:
JP2021172300A
Publication Date:
July 08, 2022
Filing Date:
October 21, 2021
Export Citation:
Assignee:
TIANMA MICROELECTRONICS CO LTD
International Classes:
G09G3/3233; G09F9/30; G09G3/20; H01L27/32; H01L51/50; H05B33/02
Attorney, Agent or Firm:
Fujio Patent Office