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公开(公告)号：US20200326793A1
公开(公告)日：2020-10-15
申请号：US16664964
申请日：2019-10-28
Applicant: Au Optronics Corporation
Inventor： Mao-Hsun Cheng , Chia-Che Hung
Abstract: A touch panel includes a substrate and a first sensor element disposed on the substrate. The first sensor element includes a light-shielding conductive layer, a first transparent conductive layer, a first photosensitive layer, and a first electrode electrically connected to the first photosensitive layer. The light-shielding conductive layer and the first transparent conductive layer are interposed between the first substrate and the first photosensitive layer. A transmittance of the light-shielding conductive layer is smaller than a transmittance of the first transparent conductive layer.
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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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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：US11244617B1
公开(公告)日：2022-02-08
申请号：US17214967
申请日：2021-03-29
Applicant: AU Optronics Corporation
Inventor： Peng-Bo Xi , Chen-Chi Lin , Chia-Che Hung , Cheng-Nan Yeh , Chin-Tang Chuang , En-Chih Liu
IPC: G09G3/3233
Abstract: A driving method applicable to a display device, in which the display device includes multiple pixel circuits, and the method includes: adjusting multiple control signals according to a first display data such that the pixel circuits generate a first frame; receiving a second display data generated after the display data; and adjusting the control signals according to a time duration of the first frame such that the pixel circuits generate a second frame, where brightness for each of the pixel circuits is proportional to a duty ratio of one of the corresponding control signals, and an increment for the duty ratio of one of the corresponding control signals in the second frame is negatively correlated to a difference between a ratio of a preset time period to the time duration of the first frame and a ratio of the preset time period to the time duration of the second frame.
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公开(公告)号：US11158244B2
公开(公告)日：2021-10-26
申请号：US16880203
申请日：2020-05-21
Applicant: AU Optronics Corporation
Inventor： Chia-Che Hung , Mao-Hsun Cheng
IPC: G09G3/32
Abstract: A pixel circuit including a writing circuit, a compensation circuit, a reset circuit, a brightness control circuit, and a light emission control circuit is provided. The writing circuit provides a first data signal and a second data signal. A first compensation unit of the compensation circuit provides, in a first time period, a first driving current according to the first data signal. A second compensation unit of the compensation circuit provides, in a second time period separated from the first time period, a second driving current according to the second data signal. The reset circuit provides a reference voltage to the compensation circuit. The light emission control circuit conducts the first compensation unit to the brightness control circuit in the first time period, and conducts the second compensation unit to the brightness control circuit in the second time period.
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Patent Agency Ranking
公开(公告)号：US10861882B2
公开(公告)日：2020-12-08
申请号：US16512416
申请日：2019-07-16
Applicant: Au Optronics Corporation
Inventor： Mao-Hsun Cheng , Chia-Che Hung , Yung-Chih Chen , Cheng-Yeh Tsai , Cheng-Han Huang , Chen-Chi Lin
Abstract: A pixel structure includes a first TFT, an adhesive layer, an LED, and a detection conductive layer. The first TFT is coupled to a conductive layer and is configured to transmit display data to the conductive layer. The adhesive layer covers the conductive layer. The LED is disposed on the adhesive layer. The detection conductive layer is disposed on the adhesive layer, and the detection conductive layer, the adhesive layer, and the conductive layer constitute a detection capacitor. Here, a thickness of the detection conductive layer is equal to or slightly greater than a height of the LED.
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公开(公告)号：US20190279584A1
公开(公告)日：2019-09-12
申请号：US16030867
申请日：2018-07-10
Applicant: Au Optronics Corporation
Inventor： Ching-Lang Hung , Chia-Che Hung , Chia-Wei Kuo
IPC: G09G3/36
Abstract: A pixel circuit and a driving method thereof are provided. The pixel circuit includes first to second pixel electrodes, first to third liquid crystal capacitors, a first storage capacitor and first to third switches. The first liquid crystal capacitor and the first storage capacitor locate between the first pixel electrode and a first common voltage. The second liquid crystal capacitor locates between the first and the second pixel electrodes. The third liquid crystal capacitor locates between the second pixel electrode and the first common voltage. The first switch has ends for receiving a data voltage and a scan signal and coupled to the first pixel electrode. The second switch has ends for receiving a second common voltage and a reset signal and coupled to the first pixel electrode. The third switch has ends for receiving a reset voltage and the reset signal and coupled to the second pixel electrode.
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8.发明授权公开(公告)号：US10964254B2
公开(公告)日：2021-03-30
申请号：US16579922
申请日：2019-09-24
Applicant: AU Optronics Corporation
Inventor： Chia-Che Hung , Ting-Wei Guo , Mao-Hsun Cheng
IPC: G09G3/32
Abstract: The disclosure provides a pixel circuit including a lighting element, a current source, an amplitude control circuit, a pulse width control circuit, and an internal compensation circuit. The current source includes a driving transistor, and provides a driving current to the lighting element by the driving transistor. The amplitude control circuit includes a first switch, and provides a first voltage to the driving transistor by the first switch to determine magnitude of the driving current. The pulse width control circuit provides a second voltage to the first switch to determine a pulse width of the driving current. The internal compensation circuit is coupled with the current source and the amplitude control circuit, detects a threshold voltage of the first switch, and provides the driving current to an external compensation circuit to render the external compensation circuit detect a threshold voltage of the driving transistor.
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公开(公告)号：US10796631B2
公开(公告)日：2020-10-06
申请号：US16558876
申请日：2019-09-03
Applicant: AU OPTRONICS CORPORATION
Inventor： Chia-Che Hung , Mao-Hsun Cheng , Chen-Chi Lin , Meng-Xi Chan , Ting-Wei Guo , Peng-Bo Xi
IPC: G09G3/32
Abstract: A pixel circuit applied to an uLED display including a LED, a first transistor˜a sixth transistor and a capacitor. The LED is coupled between a first voltage and a first node. The first transistor is coupled between the first node and a second node. The second transistor is coupled between the second node and a second voltage lower than the first voltage. The third transistor is coupled between a third voltage and a third node. The fourth transistor is coupled between the third node and a fourth node. The fifth transistor is coupled between the fourth node and a fourth voltage. A terminal of the sixth transistor is coupled to the first node. The capacitor is coupled between the second node and the fourth node. The fourth transistor is controlled by a second control signal. The third transistor, the fifth transistor and the sixth transistor are controlled by a third control signal.
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公开(公告)号：US20200027904A1
公开(公告)日：2020-01-23
申请号：US16512416
申请日：2019-07-16
Applicant: Au Optronics Corporation
Inventor： Mao-Hsun Cheng , Chia-Che Hung , Yung-Chih Chen , Cheng-Yeh Tsai , Cheng-Han Huang , Chen-Chi Lin
Abstract: A pixel structure includes a first TFT, an adhesive layer, an LED, and a detection conductive layer. The first TFT is coupled to a conductive layer and is configured to transmit display data to the conductive layer. The adhesive layer covers the conductive layer. The LED is disposed on the adhesive layer. The detection conductive layer is disposed on the adhesive layer, and the detection conductive layer, the adhesive layer, and the conductive layer constitute a detection capacitor. Here, a thickness of the detection conductive layer is equal to or slightly greater than a height of the LED.
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