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公开(公告)号：US20150243241A1
公开(公告)日：2015-08-27
申请号：US14706703
申请日：2015-05-07
Applicant: JAPAN DISPLAY INC.
Inventor： Shouji NAGAO
CPC classification number: G09G3/3696 , G06F1/3262 , G06F1/3265 , G06F3/0412 , G06F3/044 , G06F3/047 , G09G2300/0426 , G09G2330/021 , Y02D10/153 , Y02D50/20
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
Abstract translation: 在具有触摸面板功能的液晶显示（LCD）装置中，在待机状态下功耗降低。 显示部分被分成由多个显示线组成的块。 对每个块设置对电极。 驱动电路向每个块的对电极选择性地将用于液晶显示器的电压和用于触摸屏扫描的电压提供。 驱动电路具有将视频电压提供给视频线的源极放大器。 驱动电路降低了源极放大器中的电流，使得电流低于正常工作时的电流，降低功耗，并停止源极放大器的工作，并将GND电压提供给视频线 进一步降低功耗。
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公开(公告)号：US20220027015A1
公开(公告)日：2022-01-27
申请号：US17498053
申请日：2021-10-11
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
IPC: G06F3/044 , G09G3/36 , G06F1/3234 , G06F3/041 , G06F3/047
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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Patent Agency Ranking
公开(公告)号：US20190213972A1
公开(公告)日：2019-07-11
申请号：US16351633
申请日：2019-03-13
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
IPC: G09G3/36 , G06F1/3234 , G06F3/041 , G06F3/044 , G06F3/047
CPC classification number: G09G3/3696 , G06F1/3262 , G06F1/3265 , G06F3/0412 , G06F3/044 , G06F3/047 , G09G2300/0426 , G09G2330/021 , Y02D10/153 , Y02D50/20
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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公开(公告)号：US20180061360A1
公开(公告)日：2018-03-01
申请号：US15805204
申请日：2017-11-07
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
CPC classification number: G09G3/3696 , G06F1/3262 , G06F1/3265 , G06F3/0412 , G06F3/044 , G06F3/047 , G09G2300/0426 , G09G2330/021 , Y02D10/153 , Y02D50/20
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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公开(公告)号：US20230168782A1
公开(公告)日：2023-06-01
申请号：US18104324
申请日：2023-02-01
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
IPC: G06F3/044 , G09G3/36 , G06F1/3234 , G06F3/041 , G06F3/047
CPC classification number: G06F3/0446 , G09G3/3696 , G06F1/3262 , G06F1/3265 , G06F3/0412 , G06F3/0445 , G06F3/044 , G06F3/047 , Y02D10/00 , Y02D30/50 , G09G2300/0426 , G09G2330/021
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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公开(公告)号：US20210064190A1
公开(公告)日：2021-03-04
申请号：US17094249
申请日：2020-11-10
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
IPC: G06F3/044 , G09G3/36 , G06F1/3234 , G06F3/041 , G06F3/047
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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公开(公告)号：US20200035191A1
公开(公告)日：2020-01-30
申请号：US16590431
申请日：2019-10-02
Applicant: Japan Display Inc.
Inventor： Shouji NAGAO
IPC: G09G3/36 , G06F1/3234 , G06F3/044 , G06F3/041 , G06F3/047
Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.
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