Patents by Inventor Jin Hyeong YU
Jin Hyeong YU 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: 20230170451Abstract: Disclosed is a display device including: a substrate including a plurality of first pads transmitting a gate signal, a plurality of second pads transmitting a data signal, a plurality of third pads transmitting a first power voltage, and a plurality of fourth pads transmitting a second power voltage different from the first power voltage within a display area; and a plurality of display modules, each of which includes a light emitting diode connected to first to fourth electrodes attached to the first to fourth pads, a first transistor connected to the first electrode and the second electrode, a second transistor connected to the third electrode, and a light emitting diode connected to the second transistor and the fourth electrode.Type: ApplicationFiled: February 11, 2022Publication date: June 1, 2023Inventors: Jong Woo Jin, Jin Hyeong Yu
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Patent number: 11443545Abstract: A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.Type: GrantFiled: November 27, 2020Date of Patent: September 13, 2022Assignee: SILICON DISPLAY TECHNOLOGYInventors: Jong Woo Jin, Jin Hyeong Yu, Youn Duck Nam
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Patent number: 11227137Abstract: A sensor pixel according to a feature of the present invention includes: a detection electrode that forms capacitance with a recognition target; and a sensor pixel circuit that is connected to the detection electrode, generates a detection signal by using the detection electrode, and to which a DC voltage for resetting is supplied, wherein a coupling pulse is periodically applied to the recognition target that forms the capacitance with the detection electrode, and the detection signal may be changed according to the coupling pulse.Type: GrantFiled: October 28, 2020Date of Patent: January 18, 2022Assignee: SILICON DISPLAY TECHNOLOGYInventors: Jong Woo Jin, Jin Hyeong Yu, Kwanwon Lim, Youn Duck Nam
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Publication number: 20210174045Abstract: A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.Type: ApplicationFiled: November 27, 2020Publication date: June 10, 2021Inventors: Jong Woo JIN, Jin Hyeong Yu, Youn Duck Nam
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Publication number: 20210142025Abstract: A sensor pixel according to a feature of the present invention includes: a detection electrode that forms capacitance with a recognition target; and a sensor pixel circuit that is connected to the detection electrode, generates a detection signal by using the detection electrode, and to which a DC voltage for resetting is supplied, wherein a coupling pulse is periodically applied to the recognition target that forms the capacitance with the detection electrode, and the detection signal may be changed according to the coupling pulse.Type: ApplicationFiled: October 28, 2020Publication date: May 13, 2021Inventors: Jong Woo JIN, Jin Hyeong YU, Kwanwon LIM, Youn Duck NAM
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Patent number: 10977475Abstract: A fingerprint recognition sensor according to an exemplary embodiment of the present invention includes: a photo sensor for sensing light that is diffuse-reflected from a finger of a user and incident on the photo sensor, or that is transmitted through the finger and incident on the photo sensor; a first matrix positioned on the photo sensor and including a first opening; a second matrix positioned on the first matrix and including a second opening; and a cover layer including one surface contacting the finger and positioned on the second matrix, wherein, from among light that is diffuse-reflected from the finger and incident on the cover layer or that is transmitted through the finger and incident on the cover layer, light having an angle, formed by a normal line on the one surface of the cover layer and a path of the light incident on the cover layer, that is greater than a critical angle, sequentially passes through the second opening and the first opening and is incident on the photo sensor.Type: GrantFiled: July 5, 2019Date of Patent: April 13, 2021Assignee: SILICON DISPLAY TECHNOLOGYInventors: Jong Woo Jin, Jin Hyeong Yu, Hyunwoo Jin, Jun Woo Chung, Youn Duck Nam
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Publication number: 20210053334Abstract: A lamination jig according to an exemplary embodiment of the present invention includes: a base plate having a predetermined depth, and including at least one substrate mounting unit into which the substrate is inserted and fixed; and at least one discharging hole installed in the base plate and at least part thereof overlapping the substrate mounting unit.Type: ApplicationFiled: August 4, 2020Publication date: February 25, 2021Inventors: Daebong SEO, Byungchan SEO, Junseo KIM, Jun HUR, Jimin SO, Yejun HAN, Hoemin JUNG, Jin Hyeong YU, Kwanwon LIM
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Patent number: 10931906Abstract: There is provided a sensor pixel, including: a first transistor controlled depending on a mode selection voltage supplied to one end thereof; a second transistor including a gate connected to the other end of the first transistor; and a photoconductor connected to one end of the second transistor, wherein the sensor pixel operates in an optical mode when the first transistor is turned on, and the sensor pixel operates in a capacitive mode when the first transistor is turned off.Type: GrantFiled: April 9, 2019Date of Patent: February 23, 2021Assignee: SILICON DISPLAY TECHNOLOGYInventors: Kijoong Kim, Jin Hyeong Yu, Young Man Park
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Patent number: 10755070Abstract: A fingerprint and image sensor includes a plurality of data lines, a plurality of scan lines, to which a plurality of scan signals is transferred, a plurality of reset scan lines, to which a plurality of reset scan signals is transferred, and a sensor panel, which is reset by a reset voltage, which is synchronized to a corresponding reset scan signal and is transferred, generates a pixel voltage according to light supplied during an exposure period, and includes a plurality of sensor pixels, which is synchronized to a corresponding scan signal and transfers the pixel voltage to a corresponding data line, and the exposure period may be a period from a time point, at which the corresponding reset scan signal is changed to an off-level, to a time point, at which the corresponding scan signal is changed to an on-level.Type: GrantFiled: December 10, 2018Date of Patent: August 25, 2020Assignee: SILICON DISPLAY TECHNOLOGYInventors: Kijoong Kim, Taehan Go, Jin Hyeong Yu, Ji Ho Hur, Jong Woo Jin, Young Man Park, Youn Duck Nam
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Publication number: 20200012833Abstract: A fingerprint recognition sensor according to an exemplary embodiment of the present invention includes: a photo sensor for sensing light that is diffuse-reflected from a finger of a user and incident on the photo sensor, or that is transmitted through the finger and incident on the photo sensor; a first matrix positioned on the photo sensor and including a first opening; a second matrix positioned on the first matrix and including a second opening; and a cover layer including one surface contacting the finger and positioned on the second matrix, wherein, from among light that is diffuse-reflected from the finger and incident on the cover layer or that is transmitted through the finger and incident on the cover layer, light having an angle, formed by a normal line on the one surface of the cover layer and a path of the light incident on the cover layer, that is greater than a critical angle, sequentially passes through the second opening and the first opening and is incident on the photo sensor.Type: ApplicationFiled: July 5, 2019Publication date: January 9, 2020Inventors: Jong Woo JIN, Jin Hyeong YU, Hyunwoo JIN, Jun Woo CHUNG, Youn Duck NAM
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Publication number: 20190327435Abstract: There is provided a sensor pixel, including: a first transistor controlled depending on a mode selection voltage supplied to one end thereof; a second transistor including a gate connected to the other end of the first transistor; and a photoconductor connected to one end of the second transistor, wherein the sensor pixel operates in an optical mode when the first transistor is turned on, and the sensor pixel operates in a capacitive mode when the first transistor is turned off.Type: ApplicationFiled: April 9, 2019Publication date: October 24, 2019Inventors: Kijoong Kim, Jin Hyeong Yu, Young Man Park
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Patent number: 10410734Abstract: The present invention relates to a shift register configured of a plurality of stages applying two clock signals among four clock signals that are sequentially generated as an input and applying a start signal as the input, wherein a first stage charges the start signal to a P-node and outputs a first output signal and a first carry signal by using the voltage of the P-node as a driving voltage when a first clock signal is applied, and resets the P-node when a second clock signal is applied, a second stage pre-charges a start signal input to the first stage to the P-node, charges the first carry signal to the P-node, outputs a second output signal and a second carry signal by using the voltage of the P-node as the driving voltage when the second clock signal is applied, and resets the P-node when a third clock signal is applied, and a third stage and following stages pre-charge a carry signal of the second previous stage to the P-node, charge the carry signal of the previous stage to the P-node, output the ouType: GrantFiled: June 15, 2017Date of Patent: September 10, 2019Assignee: SILICON DISPLAY TECHNOLOGYInventors: Kijoong Kim Kim, Jin Hyeong Yu, Ji Ho Hur
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Publication number: 20190180075Abstract: A fingerprint and image sensor includes a plurality of data lines, a plurality of scan lines, to which a plurality of scan signals is transferred, a plurality of reset scan lines, to which a plurality of reset scan signals is transferred, and a sensor panel, which is reset by a reset voltage, which is synchronized to a corresponding reset scan signal and is transferred, generates a pixel voltage according to light supplied during an exposure period, and includes a plurality of sensor pixels, which is synchronized to a corresponding scan signal and transfers the pixel voltage to a corresponding data line, and the exposure period may be a period from a time point, at which the corresponding reset scan signal is changed to an off-level, to a time point, at which the corresponding scan signal is changed to an on-level.Type: ApplicationFiled: December 10, 2018Publication date: June 13, 2019Inventors: Kijoong Kim, Taehan Go, Jin Hyeong Yu, Ji Ho Hur, Jong Woo Jin, Young Man Park, Youn Duck Nam
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Patent number: 10127430Abstract: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.Type: GrantFiled: December 28, 2016Date of Patent: November 13, 2018Assignee: SILICON DISPLAY TECHNOLOGYInventors: Jaemin Kim, Kijoong Kim, Jin Hyeong Yu, Young Man Park, Yeon Hwa Kim, Ji Ho Hur
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Publication number: 20180096733Abstract: The present invention relates to a shift register configured of a plurality of stages applying two clock signals among four clock signals that are sequentially generated as an input and applying a start signal as the input, wherein a first stage charges the start signal to a P-node and outputs a first output signal and a first carry signal by using the voltage of the P-node as a driving voltage when a first clock signal is applied, and resets the P-node when a second clock signal is applied, a second stage pre-charges a start signal input to the first stage to the P-node, charges the first carry signal to the P-node, outputs a second output signal and a second carry signal by using the voltage of the P-node as the driving voltage when the second clock signal is applied, and resets the P-node when a third clock signal is applied, and a third stage and following stages pre-charge a carry signal of the second previous stage to the P-node, charge the carry signal of the previous stage to the P-node, output the ouType: ApplicationFiled: June 15, 2017Publication date: April 5, 2018Inventors: Kijoong KIM, Jin Hyeong YU, Ji Ho HUR
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Patent number: 9847366Abstract: An exemplary embodiment of the present invention provides an infrared image sensor including: a sensor pixel connected with a data lead-out line and a scan line disposed on a surface of a substrate; a wavelength converter positioned in the sensor pixel and disposed in an internal movement path of infrared rays, including an anti-Stokes material that absorbs infrared rays and converts them into visible rays to emit them; and a photosensor part positioned in the sensor pixel to sense the visible rays converted by the wavelength converter.Type: GrantFiled: June 1, 2017Date of Patent: December 19, 2017Assignee: SILICON DISPLAY TECHNOLOGYInventors: Jaemin Kim, Kijoong Kim, Jin Hyeong Yu, Ji Ho Hur
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Publication number: 20170351901Abstract: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.Type: ApplicationFiled: December 28, 2016Publication date: December 7, 2017Inventors: Jaemin KIM, Kijoong Kim, Jin Hyeong YU, Young Man PARK, Yeon Hwa Kim, Ji Ho HUR
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Publication number: 20160232397Abstract: The present invention relates to an optical thin film transistor-type fingerprint sensor, which comprises a backlight unit for irradiating light, including at least one of a red light source, the green light source and the infrared light source; and a photo sensor unit for sensing light irradiated from the backlight unit and reflected by a fingerprint of a user.Type: ApplicationFiled: September 17, 2014Publication date: August 11, 2016Applicant: SILICON DISPLAY TECHNOLOGYInventors: Jin Hyeong YU, Ji Ho HUR, Tae Han GO