Patents by Inventor Te-Chen Chung
Te-Chen Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250393305Abstract: Disclosed are a manufacturing method for an array substrate, and an array substrate. The manufacturing method includes: forming a scanning line, a gate and a first insulating layer; forming a first transparent conductive layer and a negative photoresist layer, carrying out back lithography on the negative photoresist layer, and then carrying out first etching on the first transparent conductive layer; forming a semiconductor layer and a positive photoresist layer, carrying out back lithography on the positive photoresist layer, and then etching the semiconductor layer; and forming a second metal layer and a photoresist layer, using a halftone mask to carry out front lithography on the photoresist layer, first carrying out first etching on the second metal layer and carrying out second etching on the first transparent conductive layer, and after a semi-photoresist pattern layer is removed, carrying out second etching on the second metal layer.Type: ApplicationFiled: May 11, 2023Publication date: December 25, 2025Applicant: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen CHUNG, Yuan-hao CHANG, Yuan TAO
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Patent number: 12292630Abstract: A display panel with switchable wide and narrow viewing angles, a driving method, and a display device are provided. The display panel is provided with a patterned identification area and a non-identification area. The display panel includes a light adjusting box and a display box which are arranged in a stacked manner. The light adjusting box includes a first substrate, a second substrate and a first liquid crystal layer. The first substrate is provided with a common viewing angle electrode, the second substrate is provided with a first viewing angle electrode and a second viewing angle electrode matching the common viewing angle electrode, the first viewing angle electrode corresponds to the identification pattern area, and the second viewing angle electrode corresponds to the non-identification pattern area.Type: GrantFiled: April 6, 2022Date of Patent: May 6, 2025Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Jiajun Shen, Limei Jiang, Jun Jiang
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Patent number: 12210252Abstract: An array substrate and a manufacturing method therefor, and a display panel are provided. The manufacturing method includes: forming a scan line and a gate on a substrate; forming a first insulating layer covering the scan line and the gate on the substrate; forming a metal oxide semiconductor layer above the first insulating layer, the metal oxide semiconductor layer including a source, a drain and an active layer; coating an upper surface of the metal oxide semiconductor layer with a photosensitive material layer; photoetching the photosensitive material layer from the back side of the substrate by using a first metal layer as a mask to form a channel protection layer; performing conductorization treatment on the metal oxide semiconductor layer to enable the source and the drain to be conductive; forming a data line above the first insulating layer; and forming a pixel electrode above the first insulating layer.Type: GrantFiled: December 17, 2021Date of Patent: January 28, 2025Assignees: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD., PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Shengdong Zhang, Xiaoliang Zhou, Congwei Liao, Qingping Lin, Huan Yang, Zhongfei Zou, Te-Chen Chung
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Patent number: 12211854Abstract: An array substrate includes a substrate; a gate disposed on the substrate; a first insulating layer covering the gate; a first semiconductor layer and a second semiconductor layer that are provided on the first insulating layer, a channel corresponding to the gate being provided in the first semiconductor layer and second semiconductor layer, the second semiconductor layer including a first metal oxide semiconductor layer and a second metal oxide semiconductor layer which are stacked, both the first metal oxide semiconductor layer and the second metal oxide semiconductor layer being disconnected at the channel, and the oxygen vacancy concentration of the second metal oxide semiconductor layer being less than the oxygen vacancy concentration of the first metal oxide semiconductor layer; and a source and a drain that are provided on the second semiconductor layer, both the source and the drain being in electrically conductive contact with the second semiconductor layer.Type: GrantFiled: December 10, 2020Date of Patent: January 28, 2025Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Chih-Cheng Tsai, Huilong Zheng, Xingang Wang
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Publication number: 20240369868Abstract: A display panel with switchable wide and narrow viewing angles, a driving method, and a display device are provided. The display panel is provided with a patterned identification area and a non-identification area. The display panel includes a light adjusting box and a display box which are arranged in a stacked manner. The light adjusting box includes a first substrate, a second substrate and a first liquid crystal layer. The first substrate is provided with a common viewing angle electrode, the second substrate is provided with a first viewing angle electrode and a second viewing angle electrode matching the common viewing angle electrode, the first viewing angle electrode corresponds to the identification pattern area, and the second viewing angle electrode corresponds to the non-identification pattern area.Type: ApplicationFiled: April 6, 2022Publication date: November 7, 2024Inventors: TE-CHEN CHUNG, JIAJUN SHEN, LIMEI JIANG, JUN JIANG
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Publication number: 20240248353Abstract: An array substrate and a manufacturing method therefor, and a display panel are provided. The manufacturing method includes: forming a scan line and a gate on a substrate; forming a first insulating layer covering the scan line and the gate on the substrate; forming a metal oxide semiconductor layer above the first insulating layer, the metal oxide semiconductor layer including a source, a drain and an active layer; coating an upper surface of the metal oxide semiconductor layer with a photosensitive material layer; photoetching the photosensitive material layer from the back side of the substrate by using a first metal layer as a mask to form a channel protection layer; performing conductorization treatment on the metal oxide semiconductor layer to enable the source and the drain to be conductive; forming a data line above the first insulating layer; and forming a pixel electrode above the first insulating layer.Type: ApplicationFiled: December 17, 2021Publication date: July 25, 2024Inventors: SHENGDONG ZHANG, XIAOLIANG ZHOU, CONGWEI LIAO, QINGPING LIN, HUAN YANG, ZHONGFEI ZOU, TE-CHEN CHUNG
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Publication number: 20240222397Abstract: An array substrate and a manufacturing method thereof are provided. The array substrate includes: a substrate; a data line and a first insulation layer which are provided on the substrate; a metal oxide semiconductor layer provided above the first insulation layer, the metal oxide semiconductor layer including a source and a drain which are conductors and an active layer which is a semiconductor; a gate insulation layer provided on the metal oxide semiconductor layer, and a scan line and a gate provided on the gate insulation layer, the projection of the active layer on the substrate coinciding with an overlapping area of the projection of the scan line and the projection of the data line on the substrate, the projection of the gate on the substrate coinciding with the projection of the active layer on the substrate; and a pixel electrode provided above the first insulating layer.Type: ApplicationFiled: December 23, 2021Publication date: July 4, 2024Inventors: TE-CHEN CHUNG, HUILONG ZHENG, XINGANG WANG
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Publication number: 20230290788Abstract: An array substrate includes a substrate; a gate disposed on the substrate; a first insulating layer covering the gate; a first semiconductor layer and a second semiconductor layer that are provided on the first insulating layer, a channel corresponding to the gate being provided in the first semiconductor layer and second semiconductor layer, the second semiconductor layer including a first metal oxide semiconductor layer and a second metal oxide semiconductor layer which are stacked, both the first metal oxide semiconductor layer and the second metal oxide semiconductor layer being disconnected at the channel, and the oxygen vacancy concentration of the second metal oxide semiconductor layer being less than the oxygen vacancy concentration of the first metal oxide semiconductor layer; and a source and a drain that are provided on the second semiconductor layer, both the source and the drain being in electrically conductive contact with the second semiconductor layer.Type: ApplicationFiled: December 10, 2020Publication date: September 14, 2023Inventors: TE-CHEN CHUNG, CHIH-CHENG TSAI, HUILONG ZHENG, XINGANG WANG
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Patent number: 11315509Abstract: A driving method for a liquid crystal display device is provided. The liquid crystal display device has a wide viewing angle mode and a narrow viewing angle mode. The driving method includes: in the wide viewing angle mode, all the frames of the liquid crystal display device have the same display brightness; in the narrow viewing angle mode, the odd frames and the even frames of the liquid crystal display device have different display brightness. In the narrow viewing angle mode of the liquid crystal display device, by using an alternate driving method of bright frames and dark frames, the mura degree is significantly reduced, and the smoothness of dynamic picture display is improved, thereby improving the use experience of users.Type: GrantFiled: November 5, 2018Date of Patent: April 26, 2022Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Yanbing Qiao, Xiaoneng Yan, Te-Chen Chung, Chia-Te Liao
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Patent number: 11269204Abstract: A viewing angle switchable liquid crystal display device includes a display panel. The display panel includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The second substrate is provided with a first electrode and a second electrode. The first electrode is a common electrode, and the second electrode is a pixel electrode. The first substrate is provided with a third electrode for controlling the switching of the viewing angle. A periodic alternating voltage is applied to the third electrode when the viewing angle of the liquid crystal display device is switched, and a period of the periodic alternating voltage is an even multiple of a refresh period of each frame of the display panel.Type: GrantFiled: December 1, 2016Date of Patent: March 8, 2022Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Chia-Te Liao, Zifang Su, Limei Jiang
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Patent number: 11187928Abstract: A method for driving a liquid crystal display device capable of switching between a wide viewing angle and a narrow viewing angle. In a first viewing angle mode, a direct-current common voltage is applied to a common electrode and voltage signals are applied to a first bias electrode and a second bias electrode. In a second viewing angle mode, a direct-current common voltage is applied to the common electrode, a first alternating-current voltage is applied to the first bias electrode and a second alternating-current voltage is applied to the second bias electrode. In addition, in the second viewing angle mode, pixel units covered by each first electrode strip of the first bias electrode have alternating positive and negative polarities, and pixel units covered by each second electrode strip of the second bias electrode have alternating positive and negative polarities.Type: GrantFiled: July 4, 2017Date of Patent: November 30, 2021Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Chia-Te Liao, Zifang Su, Limei Jiang
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Patent number: 11188169Abstract: A touch display panel with switchable viewing angles includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate is provided with a viewing angle control electrode. The second substrate is provided with a common electrode and a sensing circuit layer. The common electrode includes a plurality of electrode blocks arranged in an array and insulated from each other. The sensing circuit layer includes a plurality of sensing lines insulated from each other. The sensing lines are electrically connected to the electrode blocks in a one-to-one correspondence, respectively. Each frame of the display panel is divided into a display period and a touch period. The electrode blocks of the common electrode are used for image display during the display period, and the electrode blocks of the common electrode are used for touch sensing during the touch period.Type: GrantFiled: May 24, 2017Date of Patent: November 30, 2021Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Chia-Te Liao, Yuying He, Erlong Qi
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Publication number: 20210350757Abstract: A driving method for a liquid crystal display device is provided. The liquid crystal display device has a wide viewing angle mode and a narrow viewing angle mode. The driving method includes: in the wide viewing angle mode, all the frames of the liquid crystal display device have the same display brightness; in the narrow viewing angle mode, the odd frames and the even frames of the liquid crystal display device have different display brightness. In the narrow viewing angle mode, of the liquid crystal display device, by using an alternate driving method of bright frames and dark frames, the mura degree is significantly reduced, and the smoothness of dynamic picture display is improved, thereby improving the use experience of users.Type: ApplicationFiled: November 5, 2018Publication date: November 11, 2021Inventors: YANBING QIAO, XIAONENG YAN, TE-CHEN CHUNG, CHIA-TE LIAO
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Publication number: 20210286206Abstract: A viewing angle switchable liquid crystal display device includes a display panel. The display panel includes a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The second substrate is provided with a first electrode and a second electrode. The first electrode is a common electrode, and the second electrode is a pixel electrode. The first substrate is provided with a third electrode for controlling the switching of the viewing angle. A periodic alternating voltage is applied to the third electrode when the viewing angle of the liquid crystal display device is switched, and a period of the periodic alternating voltage is an even multiple of a refresh period of each frame of the display panel.Type: ApplicationFiled: December 1, 2016Publication date: September 16, 2021Inventors: TE-CHEN CHUNG, CHIA-TE LIAO, ZIFANG SU, LIMEI JIANG
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Publication number: 20210149511Abstract: A touch display panel with switchable viewing angles includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate is provided with a viewing angle control electrode. The second substrate is provided with a common electrode and a sensing circuit layer. The common electrode includes a plurality of electrode blocks arranged in an array and insulated from each other. The sensing circuit layer includes a plurality of sensing lines insulated from each other. The sensing lines are electrically connected to the electrode blocks in a one-to-one correspondence, respectively. Each frame of the display panel is divided into a display period and a touch period. The electrode blocks of the common electrode are used for image display during the display period, and the electrode blocks of the common electrode are used for touch sensing during the touch period.Type: ApplicationFiled: May 24, 2017Publication date: May 20, 2021Inventors: TE-CHEN CHUNG, CHIA-TE LIAO, YUYING HE, ERLONG QI
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Patent number: 10809551Abstract: A liquid crystal display device having switchable viewing angles includes a display panel and a display control module. The display panel includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The display control module is used for controlling the display panel to display images. The first substrate is provided with a first electrode. The second substrate is provided with a second electrode and a third electrode. The liquid crystal display device further includes a viewing angle control module. The display control module is further used to provide a synchronization signal to the viewing angle control module. According to the synchronization signal, when a next frame following a current frame on which a viewing angle switching signal is received starts to display, the viewing angle control module outputs a periodic alternating voltage for switching viewing angle to the first electrode.Type: GrantFiled: August 8, 2016Date of Patent: October 20, 2020Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Weifeng Fan, Peiyang Lin, Huilong Zheng
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Publication number: 20200159050Abstract: A method for driving a liquid crystal display device capable of switching between a wide viewing angle and a narrow viewing angle. In a first viewing angle mode, a direct-current common voltage is applied to a common electrode and voltage signals are applied to a first bias electrode and a second bias electrode. In a second viewing angle mode, a direct-current common voltage is applied to the common electrode, a first alternating-current voltage is applied to the first bias electrode and a second alternating-current voltage is applied to the second bias electrode. In addition, in the second viewing angle mode, pixel units covered by each first electrode strip of the first bias electrode have alternating positive and negative polarities, and pixel units covered by each second electrode strip of the second bias electrode have alternating positive and negative polarities.Type: ApplicationFiled: July 4, 2017Publication date: May 21, 2020Inventors: TE-CHEN CHUNG, CHIA-TE LIAO, ZIFANG SU, LIMEI JIANG
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Publication number: 20190179180Abstract: A liquid crystal display device having switchable viewing angles includes a display panel and a display control module. The display panel includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The display control module is used for controlling the display panel to display images. The first substrate is provided with a first electrode. The second substrate is provided with a second electrode and a third electrode. The liquid crystal display device further includes a viewing angle control module. The display control module is further used to provide a synchronization signal to the viewing angle control module. According to the synchronization signal, when a next frame following a current frame on which a viewing angle switching signal is received starts to display, the viewing angle control module outputs a periodic alternating voltage for switching viewing angle to the first electrode.Type: ApplicationFiled: August 8, 2016Publication date: June 13, 2019Applicant: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: TE-CHEN CHUNG, WEIFENG FAN, PEIYANG LIN, HUILONG ZHENG
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Patent number: 10288914Abstract: An LCD with switchable viewing angle includes a first substrate, second substrate, and a liquid crystal layer. The first substrate is provided with a first electrode and a second electrode. In an embodiment, the first electrode is a pixel electrode, and the second electrode is a common electrode. The second substrate is provided with a third electrode. Liquid crystal molecules in the liquid crystal layer are positive liquid crystal molecules. When a first bias voltage is applied to the third electrode, the LCD is displayed with a wide viewing angle; and when a second bias voltage greater than the first bias voltage is applied to the third electrode, the LCD is displayed with a narrow viewing angle.Type: GrantFiled: July 12, 2016Date of Patent: May 14, 2019Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Zifang Su, Limei Jiang
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Patent number: 10002578Abstract: An LCD device includes a color filter (CF) substrate, a thin film transistor (TFT) substrate and a liquid crystal layer. The CF substrate includes a first transparent substrate, a CF layer, a black matrix and a shielding layer. The TFT substrate includes a second transparent substrate, a pixel electrode, a common electrode, and an insulating layer disposed between the pixel electrode and the common electrode. A control signal in the form of an AC voltage is provided to the shielding layer of the CF substrate, and a DC common voltage is provided to the common electrode. An alternating electric field is generated between the AC voltage of the control signal of the shielding layer and the DC common voltage of the common electrode to push impurity ions existed in the liquid crystal layer to swing up and down in the liquid crystal layer.Type: GrantFiled: June 15, 2016Date of Patent: June 19, 2018Assignee: INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD.Inventors: Te-Chen Chung, Dalei Zhang, Zifang Su, Yongxin Ruan