Title:
ディスプレイ駆動装置
Document Type and Number:
Japanese Patent JP7385653
Kind Code:
B2
Abstract:
A display driving device includes a high voltage operating unit obtaining an operating current according to the application of the high power supply voltage from the first voltage application line; a low voltage operating unit that operates according to an application of a low power supply voltage to control the high voltage operating unit; a recycling circuit that receives the operating current from the high voltage operating unit via a relay coupling line and applies the low power supply voltage to the low voltage operating unit while supplying the received operating current to a reference potential line via the low voltage operating unit; and a current bypass circuit that flows a part of the operating current flowing through the relay coupling line into the reference potential line without supplying the part of the operating current to the recycling circuit according to a voltage increase in the low power supply voltage.
Inventors:
Hiroyoshi Ichikura
Application Number:
JP2021512118A
Publication Date:
November 22, 2023
Filing Date:
March 30, 2020
Export Citation:
Assignee:
LAPIS Semiconductor Co., Ltd.
International Classes:
G09G3/3208; G09G3/20; H10K50/10; H10K59/12
Domestic Patent References:
| JP2019132918A |
Foreign References:
| KR101918212B1 | ||||
| US20140111497 | ||||
| US20150325200 | ||||
| WO2012081222A1 | ||||
| US20080290909 | ||||
| US20090302683 |
Attorney, Agent or Firm:
Patent Attorney Corporation Rext International Patent Office