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公开(公告)号：US20200158574A1
公开(公告)日：2020-05-21
申请号：US16594085
申请日：2019-10-07
Applicant: Au Optronics Corporation , National Cheng-Kung University
Inventor： Chih-Lung Lin , Chia-En Wu , Chia-Lun Lee , Jui-Hung Chang , Jian-Shen Yu
Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.
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公开(公告)号：US10175098B2
公开(公告)日：2019-01-08
申请号：US15450583
申请日：2017-03-06
Applicant: AU Optronics Corporation
Inventor： Chih-Lung Lin , Chia-En Wu , Po-Syun Chen , Fu-Hsing Chen , Ming-Xun Wang , Ching-En Lee , Po-Cheng Lai , Jian-Shen Yu
Abstract: An optical sensing circuit has a plurality of optical sensing units arranged so that the optical sensing circuit is ambient light insensitive or sensitive to light within certain spectrum. The sensitive spectra corresponding to the plurality of optical sensing units are different from one another.
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公开(公告)号：US11035724B2
公开(公告)日：2021-06-15
申请号：US16590961
申请日：2019-10-02
Applicant: AU Optronics Corporation , NATIONAL CHENG KUNG UNIVERSITY
Inventor： Chih-Lung Lin , Fu-Hsing Chen , Chia-Lun Lee , Chia-En Wu , Jian-Shen Yu
Abstract: An optical sensing circuit includes a first light sensor, a second light sensor, a third light sensor, a capacitor, and a sampling circuit. The first light sensor, the second light sensor, and the third light sensor are respectively covered by a first color filter, a second color filter, and a third color filter. The first light sensor is coupled to the capacitor, the sampling circuit, and the third light sensor. The second light sensor is coupled to the first light sensor and is configured to receive a first sensing signal. The third light sensor is coupled between the first light sensor and a voltage source.
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Patent Agency Ranking
公开(公告)号：US10810957B2
公开(公告)日：2020-10-20
申请号：US16263008
申请日：2019-01-31
Applicant: AU Optronics Corporation
Inventor： Chia-Che Hung , Mao-Hsun Cheng , Jian-Shen Yu
IPC: G09G3/36 , G02F1/133 , G02F1/1362
Abstract: A display device driving method, applicable to a display device including a pixel circuit coupled with a first node point, a source driving circuit for providing a data signal, and a reading circuit, including following operations: coupling the first node point with the source driving circuit or the reading circuit; supplying a first control signal to the pixel circuit, wherein the first control signal is for enabling the pixel circuit to receive the data signal from the first node point; supplying a second control signal to an optical sensing circuit, wherein the second control signal is for enabling the optical sensing circuit to output a sensing signal to the reading circuit through the first node point; utilizing the reading circuit to amplify the sensing signal and output the amplified sensing signal, wherein duration of the second impulse overlaps with duration of the first impulse.
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公开(公告)号：US12078542B2
公开(公告)日：2024-09-03
申请号：US17742384
申请日：2022-05-11
Applicant: Au Optronics Corporation , National Cheng-Kung University
Inventor： Chih-Lung Lin , Chia-En Wu , Chia-Lun Lee , Jui-Hung Chang , Jian-Shen Yu
Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.
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公开(公告)号：US20220276097A1
公开(公告)日：2022-09-01
申请号：US17742384
申请日：2022-05-11
Applicant: Au Optronics Corporation , National Cheng-Kung University
Inventor： Chih-Lung Lin , Chia-En Wu , Chia-Lun Lee , Jui-Hung Chang , Jian-Shen Yu
Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.
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公开(公告)号：US11371885B2
公开(公告)日：2022-06-28
申请号：US16594085
申请日：2019-10-07
Applicant: Au Optronics Corporation , National Cheng-Kung University
Inventor： Chih-Lung Lin , Chia-En Wu , Chia-Lun Lee , Jui-Hung Chang , Jian-Shen Yu
Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.
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公开(公告)号：US20170031219A1
公开(公告)日：2017-02-02
申请号：US15083862
申请日：2016-03-29
Applicant: AU OPTRONICS CORPORATION
Inventor： Chih-Lung Lin , Jian-Shen Yu , Chia-En Wu , Chia-Che Hung
IPC: G02F1/1362 , G02F1/1368
CPC classification number: G09G3/3648 , G09G2300/0491 , G09G2300/0833
Abstract: A liquid-crystal pixel unit includes a storage capacitor, a liquid-crystal capacitor, a data writing circuit, and a source-follower type output circuit. The storage capacitor includes a first electrode and a second electrode. The second electrode is configured to receive a first reference voltage. The liquid-crystal capacitor includes a third electrode and a fourth electrode. The fourth electrode is configured to receive a second reference voltage. The data writing circuit is electrically connected to the first electrode and the third electrode. The data writing circuit is controlled by a control signal to charge a data voltage into the storage capacitor and the liquid-crystal capacitor. The source-follower type output circuit includes an input terminal and an output terminal. The input terminal is electrically connected to the first electrode. The output terminal is electrically connected to the third electrode.
Abstract translation: 液晶像素单元包括存储电容器，液晶电容器，数据写入电路和源极跟随器型输出电路。 存储电容器包括第一电极和第二电极。 第二电极被配置为接收第一参考电压。 液晶电容器包括第三电极和第四电极。 第四电极被配置为接收第二参考电压。 数据写入电路电连接到第一电极和第三电极。 数据写入电路由控制信号控制，以将数据电压充电到存储电容器和液晶电容器中。 源极跟随器型输出电路包括输入端子和输出端子。 输入端子电连接到第一电极。 输出端子电连接到第三电极。
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