Patents by Inventor Kung-Chen Kuo
Kung-Chen Kuo 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: 20190325813Abstract: A display device includes a pixel array, multiple data lines and multiple gate lines. The pixel array includes multiple pixels. At least one of the pixels includes a first sub-pixel and a second sub-pixel. The first sub-pixel includes a pixel circuit, which includes a first light-emitting element and a first driving circuit. The first driving circuit is coupled to and configured to control the first light-emitting element. The first driving circuit includes multiple TFTs. The second sub-pixel includes a pixel circuit, which includes a second light-emitting element and a second driving circuit. The second driving circuit is coupled to and configured to control the second light-emitting element. The second driving circuit includes multiple TFTs. The number of TFTs of the first driving circuit and the number of TFTs of the second driving circuit are different.Type: ApplicationFiled: March 18, 2019Publication date: October 24, 2019Inventors: Min-Hsin LO, Ker-Yih KAO, Cheng-Hsu CHOU, Kung-Chen KUO, Hung-Sheng LIAO
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Publication number: 20190279576Abstract: A display includes a substrate having a driver circuit with hybrid devices. The driver circuit includes first to fourth transistors. The first transistor includes a first control end connected to a clock signal, a first end connected to a high voltage, and a second end connected to a first node. The second transistor comprises metal oxide semiconductor, and includes a second control end connected to an input signal, a third end connected to a second node, and a fourth end connected to the first node. The third transistor comprises polysilicon semiconductor, and includes a third control end connected to the first node, and a fifth end connected to the high voltage, and a sixth end connected to an output voltage. The fourth transistor includes a fourth control end connected to the input signal, a seventh end connected to the third node, and an eighth end connected to the output voltage.Type: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Inventors: Kuan-Feng LEE, Yu-Sheng TSAI, Kung-Chen KUO
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Publication number: 20190266949Abstract: A driving circuit includes a current drive unit and a reset compensation and light emitting control circuit. The current drive unit includes a first transistor and a second transistor. The first transistor and the second transistor are connected in series, wherein the first transistor and the second transistor include a silicon semiconductor layer. The reset compensation and light emitting control circuit is coupled to the current drive unit. The reset compensation and light emitting control circuit includes a third transistor connected to a control terminal of the first transistor, wherein the third transistor is an oxide semiconductor transistor.Type: ApplicationFiled: May 14, 2019Publication date: August 29, 2019Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Ming-Chun TSENG, Cheng-Hsu CHOU, Kuan-Feng LEE
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Publication number: 20190259785Abstract: A display includes a pixel circuit. The pixel circuit includes a light emitting diode, a first transistor, a second transistor and a third transistor. The first transistor includes a first semiconductor layer. The first transistor has a first control terminal, a second terminal, and a third terminal electrically connected to the light emitting diode. The second transistor includes a second semiconductor layer, and is electrically connected to the third terminal. The third transistor is electrically connected to the first control terminal. A material of the first semiconductor layer is different from a material of the second semiconductor layer.Type: ApplicationFiled: May 3, 2019Publication date: August 22, 2019Inventors: Kuanfeng LEE, Kung-Chen KUO, Lien-Hsiang CHEN, Yu-Sheng TSAI
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Patent number: 10360853Abstract: A display includes a substrate having a driver circuit with hybrid devices. The driver circuit includes first to fourth transistors. The first transistor includes a first control end connected to a clock signal, a first end connected to a high voltage, and a second end connected to a first node. The second transistor comprises metal oxide semiconductor, and includes a second control end connected to an input signal, a third end connected to a second node, and a fourth end connected to the first node. The third transistor comprises polysilicon semiconductor, and includes a third control end connected to the first node, and a fifth end connected to the high voltage, and a sixth end connected to an output voltage. The fourth transistor includes a fourth control end connected to the input signal, a seventh end connected to the third node, and an eighth end connected to the output voltage.Type: GrantFiled: May 12, 2017Date of Patent: July 23, 2019Assignee: INNOLUX CORPORATIONInventors: Kuan-Feng Lee, Yu-Sheng Tsai, Kung-Chen Kuo
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Patent number: 10332446Abstract: A driving circuit includes a current drive unit and a reset compensation and light emitting control circuit. The current drive unit includes a first transistor and a second transistor. The first transistor and the second transistor are connected in series, wherein the first transistor and the second transistor include a silicon semiconductor layer. The reset compensation and light emitting control circuit is coupled to the current drive unit. The reset compensation and light emitting control circuit includes a third transistor connected to a control terminal of the first transistor, wherein the third transistor is an oxide semiconductor transistor.Type: GrantFiled: November 30, 2016Date of Patent: June 25, 2019Assignee: INNOLUX CORPORATIONInventors: Lien-Hsiang Chen, Kung-Chen Kuo, Ming-Chun Tseng, Cheng-Hsu Chou, Kuan-Feng Lee
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Publication number: 20190165070Abstract: A display device is disclosed, which includes: a first substrate; a first data line disposed on the first substrate; a first electrode disposed on the first substrate; and a first pixel defining layer disposed on the first electrode, wherein the first pixel defining layer exposes a part of the first electrode to define a first light emitting region, wherein, in a normal direction view of the first substrate, the first light emitting region partially overlaps the first data line.Type: ApplicationFiled: February 1, 2019Publication date: May 30, 2019Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Sheng-Kai HSU, Hsia-Ching CHU, Mei-Chun SHIH
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Publication number: 20190156758Abstract: A driving device includes a pixel array, a controller and a driver. The driver has a plurality of driving devices. Each of the driving devices includes a plurality of transistors and at least one capacitor to drive a light emitting device. By controlling the timing scheme of control signals applied to the driving device, the voltage for driving the light emitting device would not be affected by threshold voltages of the transistors.Type: ApplicationFiled: January 21, 2019Publication date: May 23, 2019Inventors: Lien-Hsiang Chen, Kung-Chen Kuo, Ming-Chun Tseng
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Patent number: 10242624Abstract: A driving device includes a pixel array, a controller and a driver. The driver has a plurality of driving devices. Each of the driving devices includes a plurality of transistors and at least one capacitor to drive a light emitting device. By controlling the timing scheme of control signals applied to the driving device, the voltage for driving the light emitting device would not be affected by threshold voltages of the transistors.Type: GrantFiled: August 1, 2016Date of Patent: March 26, 2019Assignee: INNOLUX CORPORATIONInventors: Lien-Hsiang Chen, Kung-Chen Kuo, Ming-Chun Tseng
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Patent number: 10236329Abstract: A display device is disclosed, which includes: a first substrate with a data line disposed thereon, wherein the data line extends along a data line-extension-direction; and plural pixel units disposed on the first substrate and each of the plural pixel units comprising: a transistor disposed on the first substrate; an insulating layer disposed on the transistor and including a via hole; a first electrode disposed on the insulating layer and electrically connecting to the transistor; and a pixel defining layer disposed on the first electrode and exposing partial first electrode to form a light emitting region. Herein, in a first pixel unit of the pixel units, an extension direction of a connecting line defined by a minimum distance between a first outline of the via hole and a second outline of the light emitting region is not perpendicular and not parallel to the data-line-extension direction.Type: GrantFiled: September 5, 2017Date of Patent: March 19, 2019Assignee: INNOLUX CORPORATIONInventors: Lien-Hsiang Chen, Kung-Chen Kuo, Sheng-Kai Hsu, Hsia-Ching Chu, Mei-Chun Shih
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Publication number: 20180069065Abstract: A display device is disclosed, which includes: a first substrate with a data line disposed thereon, wherein the data line extends along a data line-extension-direction; and plural pixel units disposed on the first substrate and each of the plural pixel units comprising: a transistor disposed on the first substrate; an insulating layer disposed on the transistor and including a via hole; a first electrode disposed on the insulating layer and electrically connecting to the transistor; and a pixel defining layer disposed on the first electrode and exposing partial first electrode to form a light emitting region. Herein, in a first pixel unit of the pixel units, an extension direction of a connecting line defined by a minimum distance between a first outline of the via hole and a second outline of the light emitting region is not perpendicular and not parallel to the data-line-extension direction.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Sheng-Kai HSU, Hsia-Ching CHU, Mei-Chun SHIH
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Publication number: 20170365219Abstract: A display includes a substrate having a driver circuit with hybrid devices. The driver circuit includes first to fourth transistors. The first transistor includes a first control end connected to a clock signal, a first end connected to a high voltage, and a second end connected to a first node. The second transistor comprises metal oxide semiconductor, and includes a second control end connected to an input signal, a third end connected to a second node, and a fourth end connected to the first node. The third transistor comprises polysilicon semiconductor, and includes a third control end connected to the first node, and a fifth end connected to the high voltage, and a sixth end connected to an output voltage. The fourth transistor includes a fourth control end connected to the input signal, a seventh end connected to the third node, and an eighth end connected to the output voltage.Type: ApplicationFiled: May 12, 2017Publication date: December 21, 2017Inventors: Kuan-Feng LEE, Yu-Sheng TSAI, Kung-Chen KUO
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Publication number: 20170186782Abstract: A display includes a pixel circuit. The pixel circuit includes a light emitting diode, a first transistor, a second transistor and a third transistor. The first transistor includes a first semiconductor layer. The first transistor has a first control terminal, a second terminal, and a third terminal electrically connected to the light emitting diode. The second transistor includes a second semiconductor layer, and is electrically connected to the third terminal. The third transistor is electrically connected to the first control terminal. A material of the first semiconductor layer is different from a material of the second semiconductor layer.Type: ApplicationFiled: December 20, 2016Publication date: June 29, 2017Inventors: Kuanfeng LEE, Kung-Chen KUO, Lien-Hsiang CHEN, Yu-Sheng TSAI
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Publication number: 20170162115Abstract: A driving circuit includes a current drive unit and a reset compensation and light emitting control circuit. The current drive unit includes a first transistor and a second transistor. The first transistor and the second transistor are connected in series, wherein the first transistor and the second transistor include a silicon semiconductor layer. The reset compensation and light emitting control circuit is coupled to the current drive unit. The reset compensation and light emitting control circuit includes a third transistor connected to a control terminal of the first transistor, wherein the third transistor is an oxide semiconductor transistor.Type: ApplicationFiled: November 30, 2016Publication date: June 8, 2017Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Ming-Chun TSENG, Cheng-Hsu CHOU, Kuan-Feng LEE
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Publication number: 20170061884Abstract: A pixel structure including a data transistor, a switching transistor, a driving transistor, a compensation transistor, an illumination transistor, an organic light-emitting diode (OLED) and a first capacitor is provided. The data transistor transmits a data signal to a node according to a scan signal. The switching transistor provides a first reference signal to the node according to a first illumination signal. The driving transistor includes a gate, a source receiving a first operation voltage and a drain. The compensation transistor is coupled between the gate and the drain and receives a control signal. The illumination transistor receives a second illumination signal and is coupled to the drain. The OLED includes an anode coupled to the illumination transistor and a cathode receiving a second operation voltage. The first capacitor is coupled between the node and the gate.Type: ApplicationFiled: August 23, 2016Publication date: March 2, 2017Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Ming-Chun TSENG
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Publication number: 20170047010Abstract: A driving device includes a pixel array, a controller and a driver. The driver has a plurality of driving devices. Each of the driving devices includes a plurality of transistors and at least one capacitor to drive a light emitting device. By controlling the timing scheme of control signals applied to the driving device, the voltage for driving the light emitting device would not be affected by threshold voltages of the transistors.Type: ApplicationFiled: August 1, 2016Publication date: February 16, 2017Inventors: Lien-Hsiang CHEN, Kung-Chen KUO, Ming-Chun TSENG
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Publication number: 20160232840Abstract: In an OLED display panel with threshold voltage compensation, a data programming transistor has a first control end for receiving a first control signal, a first end connected to a data line, and a second end. A driving transistor has a second control end, a third end, and a fourth end. A storage capacitor is connected to the second end and the second control end. A compensating transistor has a third control end for receiving a second control signal, a fifth end connected to the storage capacitor, and a sixth end connected to the fourth end. A compensating capacitor is connected to the third end, the fifth end, and the second control end. A turn-on transistor has a fourth control end for receiving a third control signal, a seventh end connected to the fourth end, and an eighth end connected to an OLED device.Type: ApplicationFiled: January 5, 2016Publication date: August 11, 2016Inventors: Ming-Chun TSENG, Kung-Chen KUO
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Patent number: 9230483Abstract: A pixel circuit includes an OLED, a driving transistor, first and second transistors, a storage capacitor and a coupling capacitor. The OLED includes an anode and a cathode connected to a first voltage source. The driving transistor includes a first node connected to a second voltage source, a second node, and a third node connected to the anode. The first transistor includes first, second and third terminals connected to a data driving line, a first control signal source, and the second node, respectively. The second transistor includes a first terminal, a second terminal connected to a second control signal source, and a third terminal connected to the anode and the third node. The storage capacitor includes first and second terminals connected to a third voltage source and the second transistor, respectively. The coupling capacitor includes first and second terminals connected to the second transistor and the second node, respectively.Type: GrantFiled: April 24, 2014Date of Patent: January 5, 2016Assignee: INNOLUX CORPORATIONInventors: Ming Chun Tseng, Yi Hua Hsu, Kung-Chen Kuo, Lien-Hsiang Chen
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Publication number: 20150269889Abstract: An OLED display device and a driving method thereof are disclosed. The display device includes a display panel, m scan lines, n first control lines, n second control lines and a compensation driving circuit. The display panel includes a plurality of pixel units. Each of the pixel units has a compensation circuit. The pixel units are arranged into m rows, and pixel units of the rows are divided into n groups. The scan lines are disposed corresponding to and electrically connected with the pixel units of the rows. The first control lines and the second control lines are disposed corresponding to the groups and electrically connected with the pixel units of the corresponding groups. The ratio (m/n) is a positive integer, and 2?(m/n)<m. The compensation driving circuit is electrically connected with the pixel units through the scan lines, the first control lines and the second control lines.Type: ApplicationFiled: March 18, 2015Publication date: September 24, 2015Inventors: Hung-Lin HSU, Chun-Yu CHEN, Chien-Hsiang HUANG, Kung-Chen KUO, Ming-Chun TSENG
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Publication number: 20150243218Abstract: An organic light-emitting diode (OLED) display is provided. A pixel array includes a plurality of pixels, wherein the pixel includes an emitting device and a driving transistor. A first gate of the driving transistor receives a driving signal, and a second gate of the driving transistor receives a compensation signal. A gate driving circuit provides the compensation signal according to a total current value flowing through the emitting devices of the pixels. When the total current value is between a first reference value and a second reference value, the gate driving circuit adjusts a voltage level of the compensation signal according to the total current value. The first reference value is 90% of a target current value, and the second reference value is 50% of a target current value.Type: ApplicationFiled: February 6, 2015Publication date: August 27, 2015Inventors: Ming-Chun TSENG, Cheng-Hsu CHOU, Chun-Yu CHEN, Kung-Chen KUO