Patents by Inventor Deok-Jun Choi
Deok-Jun Choi 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: 20250046245Abstract: A display device is disclosed that includes a display panel including a plurality of pixels configured to receive an initialization voltage through an initialization voltage line, a controller configured to output a voltage control signal for controlling a voltage level of the initialization voltage, and a power manager configured to provide the initialization voltage to the initialization voltage line, change the voltage level of the initialization voltage to an initialization level at or after a power-on time at which a power starts to be supplied and before a display-on time at which an image starts to be displayed based on the voltage control signal, and change the voltage level of the initialization voltage to a target level corresponding to a luminance of the image at or after the display-on time based on the power control signal.Type: ApplicationFiled: March 13, 2024Publication date: February 6, 2025Inventors: HYOJUNG KIM, DEOK JUN CHOI, HYUN-CHANG KANG, YUNHEE KWAK, YOO-YOUNG PARK, Hyesun Sung, JI-HYEON SON, SEUNGBO SHIM, JEONG YONG LEE
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Publication number: 20240379465Abstract: A method includes: forming a MOSFET layer on a semiconductor wafer substrate, the MOSFET layer including: pixel driver circuits; and a display driver circuit; forming at least one line layer on the MOSFET layer; applying a first supply voltage to a first supply voltage line through a first supply voltage pad; connecting data fan-out lines connected to the pixel driver circuits with a first test line by controlling a test switching circuit in the MOSFET layer; measuring an electrical signal generated from each of the pixel driver circuits through a first test pad connected to the first test line; determining whether each of the pixel driver circuits is defective or not based on the measured electrical signal; and forming a light-emitting element layer including light-emitting elements on the at least one line layer when that the pixel driver circuits are determined to be not defective.Type: ApplicationFiled: December 7, 2023Publication date: November 14, 2024Inventors: Deok Jun CHOI, Hyo Jung KIM, KI YONG PARK, Yoo Young PARK, Hye Sun SUNG, Ji Hyeon SON, Seung Bo SHIM, Jeong Yong LEE
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Patent number: 12112690Abstract: A display device includes first data lines including first color data lines connected to first sub-pixels, second color data lines connected to second sub-pixels, and third color data lines connected to third sub-pixels, and fan out lines including first fan out lines, second fan out lines alternately arranged with the first fan out lines in a peripheral region, and third fan out lines, a data driver outputting data voltages to the first fan out lines and the second fan out lines connected to the first data lines in a first arrangement according to the first arrangement, and output the data voltages to the third fan out lines connected to the first data lines in a second arrangement according to the second arrangement, and a timing controller remapping input image data based on the first arrangement.Type: GrantFiled: April 12, 2023Date of Patent: October 8, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hee-Jeong Seo, Woo-Chul Kim, Deok Jun Choi
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Publication number: 20240233613Abstract: A display device includes first data lines including first color data lines connected to first sub-pixels, second color data lines connected to second sub-pixels, and third color data lines connected to third sub-pixels, and fan out lines including first fan out lines, second fan out lines alternately arranged with the first fan out lines in a peripheral region, and third fan out lines, a data driver outputting data voltages to the first fan out lines and the second fan out lines connected to the first data lines in a first arrangement according to the first arrangement, and output the data voltages to the third fan out lines connected to the first data lines in a second arrangement according to the second arrangement, and a timing controller remapping input image data based on the first arrangement.Type: ApplicationFiled: April 12, 2023Publication date: July 11, 2024Inventors: HEE-JEONG SEO, WOO-CHUL KIM, DEOK JUN CHOI
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Patent number: 12020637Abstract: A display device includes: a display panel including a plurality of pixels and configured to display an image; a driving controller including a timing controller and a driver controlled by the timing controller, the driving controller being configured to supply an electrical signal to the display panel; a memory configured to receive static image data from the driving controller and to store the static image data; and an interface configured to couple the driving controller to the memory so as to transmit and receive the static image data, wherein the driving controller and the memory are separate individual components.Type: GrantFiled: August 24, 2020Date of Patent: June 25, 2024Assignee: Samsung Display Co., Ltd.Inventors: Moon Sang Hwang, Deok Jun Choi, Weon Jun Choe
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Publication number: 20240135862Abstract: A display device includes first data lines including first color data lines connected to first sub-pixels, second color data lines connected to second sub-pixels, and third color data lines connected to third sub-pixels, and fan out lines including first fan out lines, second fan out lines alternately arranged with the first fan out lines in a peripheral region, and third fan out lines, a data driver outputting data voltages to the first fan out lines and the second fan out lines connected to the first data lines in a first arrangement according to the first arrangement, and output the data voltages to the third fan out lines connected to the first data lines in a second arrangement according to the second arrangement, and a timing controller remapping input image data based on the first arrangement.Type: ApplicationFiled: April 11, 2023Publication date: April 25, 2024Inventors: HEE-JEONG SEO, WOO-CHUL KIM, DEOK JUN CHOI
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Patent number: 11900871Abstract: A display device including: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.Type: GrantFiled: February 17, 2023Date of Patent: February 13, 2024Assignee: Samsung Display Co., Ltd.Inventors: Ji Hyun Ka, Tae Hoon Kwon, Ki Myeong Eom, Chung Yi, Se Byung Chae, Deok Jun Choi, Moon Sang Hwang
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Patent number: 11756488Abstract: A display device includes an oscillator which generates a reference clock signal having a frequency corresponding to frequency information provided from an external device, a register which stores a signal parameter for the reference clock signal, and the signal parameter indicates the number of pulses of the reference clock signal included in one horizontal time, a data driver which applies data signals to data lines connected to pixels based on the one horizontal time, and a controller which changes the signal parameter based on a change in the frequency of the reference clock signal in a way such that the one horizontal time is maintained substantially constant.Type: GrantFiled: August 13, 2021Date of Patent: September 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Kuk Kim, Deok Jun Choi, Ji Hyun Kim
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Publication number: 20230206831Abstract: A display device including: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.Type: ApplicationFiled: February 17, 2023Publication date: June 29, 2023Inventors: Ji Hyun KA, Tae Hoon KWON, Ki Myeong EOM, Chung YI, Se Byung CHAE, Deok Jun CHOI, Moon Sang HWANG
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Patent number: 11681830Abstract: A method for determining whether or not a display panel is a duplicate is provided. The method includes: generating, by a code generator in an electronic module, a code, the electronic module including a plurality of electronic components; transmitting, by the code generator, the code to each of a first sequence generator in the electronic module and a second sequence generator in a display panel, the display panel being configured to be mounted to the electronic module; generating, by the first sequence generator, a first response value, and transmitting the first response value to a certification component in the electronic module; generating, by the second sequence generator, a second response value, and transmitting the second response value to the certification component; and comparing, by the certification component, the received first response value and the received second response value.Type: GrantFiled: January 28, 2022Date of Patent: June 20, 2023Assignee: Samsung Display Co., Ltd.Inventors: Moon Sang Hwang, Weon Jun Choe, Deok Jun Choi
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Patent number: 11663968Abstract: A display device includes a display panel, an input sensor disposed on the display panel, a panel driving circuit which drives the display panel and generates a first driving voltage, and a readout circuit which controls the input sensor. The readout circuit receives the first driving voltage from the panel driving circuit and outputs transmit signals to control the input sensor.Type: GrantFiled: August 31, 2021Date of Patent: May 30, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ara Jo, Woo-Chul Kim, Inbok Song, Kanghee Lee, Deok Jun Choi
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Patent number: 11587505Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.Type: GrantFiled: March 11, 2022Date of Patent: February 21, 2023Assignee: Samsung Display Co., Ltd.Inventors: Ji Hyun Ka, Tae Hoon Kwon, Ki Myeong Eom, Chung Yi, Se Byung Chae, Deok Jun Choi, Moon Sang Hwang
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Publication number: 20220262316Abstract: A display device includes an oscillator which generates a reference clock signal having a frequency corresponding to frequency information provided from an external device, a register which stores a signal parameter for the reference clock signal, and the signal parameter indicates the number of pulses of the reference clock signal included in one horizontal time, a data driver which applies data signals to data lines connected to pixels based on the one horizontal time, and a controller which changes the signal parameter based on a change in the frequency of the reference clock signal in a way such that the one horizontal time is maintained substantially constant.Type: ApplicationFiled: August 13, 2021Publication date: August 18, 2022Inventors: Sang Kuk KIM, Deok Jun CHOI, Ji Hyun KIM
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Publication number: 20220199011Abstract: A display device includes: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to: receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region; and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.Type: ApplicationFiled: March 11, 2022Publication date: June 23, 2022Inventors: Ji Hyun KA, Tae Hoon KWON, Ki Myeong EOM, Chung YI, Se Byung CHAE, Deok Jun CHOI, Moon Sang HWANG
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Patent number: 11361705Abstract: A display device includes: a plurality of pixels arranged in a row direction and a column direction; a data driver configured to transmit a data signal to the plurality of pixels through a plurality of data lines; a scan driver configured to transmit a scan signal to the plurality of pixels through a plurality of scan lines; and a light emission driver configured to transmit a light emission signal to the plurality of pixels through a plurality of light emission lines, wherein each of the scan lines and the light emission lines is connected to the pixels arranged in the row direction among the plurality of pixels, the data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and the scan driver is configured to transmit the scan signal of a turn-on level to the pixels in an interlace manner.Type: GrantFiled: September 29, 2020Date of Patent: June 14, 2022Assignee: Samsung Display Co., Ltd.Inventors: Kang Hee Lee, Deok Jun Choi, Woo Chui Kim, In Bok Song
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Publication number: 20220165211Abstract: A display device includes a display panel, an input sensor disposed on the display panel, a panel driving circuit which drives the display panel and generates a first driving voltage, and a readout circuit which controls the input sensor. The readout circuit receives the first driving voltage from the panel driving circuit and outputs transmit signals to control the input sensor.Type: ApplicationFiled: August 31, 2021Publication date: May 26, 2022Inventors: Ara JO, Woo-Chul KIM, Inbok SONG, Kanghee LEE, Deok Jun CHOI
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Publication number: 20220156409Abstract: A method for determining whether or not a display panel is a duplicate is provided. The method includes: generating, by a code generator in an electronic module, a code, the electronic module including a plurality of electronic components; transmitting, by the code generator, the code to each of a first sequence generator in the electronic module and a second sequence generator in a display panel, the display panel being configured to be mounted to the electronic module; generating, by the first sequence generator, a first response value, and transmitting the first response value to a certification component in the electronic module; generating, by the second sequence generator, a second response value, and transmitting the second response value to the certification component; and comparing, by the certification component, the received first response value and the received second response value.Type: ApplicationFiled: January 28, 2022Publication date: May 19, 2022Inventors: Moon Sang HWANG, Weon Jun CHOE, Deok Jun CHOI
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Patent number: 11238182Abstract: A method for determining whether or not a display panel is a duplicate is provided. The method includes: generating, by a code generator in an electronic module, a code, the electronic module including a plurality of electronic components; transmitting, by the code generator, the code to each of a first sequence generator in the electronic module and a second sequence generator in a display panel, the display panel being configured to be mounted to the electronic module; generating, by the first sequence generator, a first response value, and transmitting the first response value to a certification component in the electronic module; generating, by the second sequence generator, a second response value, and transmitting the second response value to the certification component; and comparing, by the certification component, the received first response value and the received second response value.Type: GrantFiled: May 28, 2020Date of Patent: February 1, 2022Assignee: Samsung Display Co., Ltd.Inventors: Moon Sang Hwang, Weon Jun Choe, Deok Jun Choi
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Publication number: 20210110760Abstract: A display device includes: a plurality of pixels arranged in a row direction and a column direction; a data driver configured to transmit a data signal to the plurality of pixels through a plurality of data lines; a scan driver configured to transmit a scan signal to the plurality of pixels through a plurality of scan lines; and a light emission driver configured to transmit a light emission signal to the plurality of pixels through a plurality of light emission lines, wherein each of the scan lines and the light emission lines is connected to the pixels arranged in the row direction among the plurality of pixels, the data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and the scan driver is configured to transmit the scan signal of a turn-on level to the pixels in an interlace manner.Type: ApplicationFiled: September 29, 2020Publication date: April 15, 2021Inventors: Kang Hee LEE, Deok Jun CHOI, Woo Chul KIM, In Bok SONG
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Publication number: 20210082344Abstract: A display device includes: a display panel including a plurality of pixels and configured to display an image; a driving controller including a timing controller and a driver controlled by the timing controller, the driving controller being configured to supply an electrical signal to the display panel; a memory configured to receive static image data from the driving controller and to store the static image data; and an interface configured to couple the driving controller to the memory so as to transmit and receive the static image data, wherein the driving controller and the memory are separate individual components.Type: ApplicationFiled: August 24, 2020Publication date: March 18, 2021Inventors: Moon Sang HWANG, Deok Jun CHOI, Weon Jun CHOE