Patents Assigned to Silicon Works Co., Ltd.
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Patent number: 12032766Abstract: A display driving device capable of operating a source driver integrated circuit (IC) in a low power mode during a touch sensing period includes a source driver IC configured to operate in a first low power mode in which an analog data processing unit is deactivated or operate in a second low power mode in which both of the analog data processing unit and a digital data processing unit are deactivated, during a touch sensing period of a first frame; and a readout IC configured to supply touch sensor driving signals to touch sensors during the touch sensing period and receive touch sensing data from the touch sensors according to the touch sensor driving signals.Type: GrantFiled: March 2, 2023Date of Patent: July 9, 2024Assignee: Silicon Works Co., Ltd.Inventors: Jong Min Park, Seong Sik Yoon, Jung Min Choi
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Patent number: 11967044Abstract: Provided is a device for upscaling resolution based on a slice image, in which a low-resolution image is divided into a plurality of slice images so that a high-resolution image is generated. The device includes a convolution operation unit configured to convert a low-resolution input slice image into a high-resolution output slice image using a convolutional neural network. The convolutional neural network includes a cascading block configured to perform a convolution operation using a convolution filter having a predetermined size and a residual operation on an input feature map generated from the low-resolution input slice image to generate an output feature map, and an upscaling block configured to upscale the output feature map to generate the high-resolution output slice image.Type: GrantFiled: March 24, 2021Date of Patent: April 23, 2024Assignee: Silicon Works Co., Ltd.Inventors: Byung Cheol Song, Dong Yoon Choi, Ji Yun Park
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Patent number: 11874744Abstract: A mobile phone having a flash memory reset function, which solves a malfunction of the mobile phone due to an abnormal state of a flash memory, and a flash memory control apparatus thereof. The flash memory control apparatus includes an application processor configured to provide the hold signal and the chip select signal for resetting when it is determined, on the basis of error information due to a read error of an integrated circuit operating by reading flash data, that an abnormal case due to a read error for the flash data has occurred more than a predetermined number of times; and a flash memory configured to reset the flash data when the hold signal and the chip select signal for resetting are received.Type: GrantFiled: August 27, 2021Date of Patent: January 16, 2024Assignee: Silicon Works Co., Ltd.Inventor: Myung Kyu Jeon
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Patent number: 11823606Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.Type: GrantFiled: October 18, 2022Date of Patent: November 21, 2023Assignee: Silicon Works Co., Ltd.Inventors: Jun Young Park, Ki Taek Kim
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Publication number: 20230120995Abstract: Disclosed are a display driver for a low power driving and a timing controller for the display device. The display device may include the timing controller configured to transmit a packet to which one of first option information corresponding to a static pattern or second option information corresponding to a dynamic pattern is applied, and a source driver configured to receive the packet and to perform a low power mode corresponding to the static pattern based on the first option information or adaptive charge sharing corresponding to the dynamic pattern based on the second option information.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: Silicon Works Co., Ltd.Inventors: Nam Seok Seo, Sea Ho Kim, Hae Ju Kim, Je Jin Myoung, Won Sik Chae
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Patent number: 11588403Abstract: Provided is a buck-boost converting circuit including an LED current regulator and bypass switches. The buck-boost converting circuit includes switches coupled in a matrix form in order to individually control a plurality of LEDs connected in series, an LED current regulator, and a circuit capable of buck-boost conversion.Type: GrantFiled: December 21, 2020Date of Patent: February 21, 2023Assignee: Silicon Works Co., LtdInventors: Seung Jin Kim, Jae Seong Lee, Jung Sik Kim, Jeongjin Roh, Ju Pyo Hong, Ju Hyun Lee
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Patent number: 11586324Abstract: The present disclosure relates to a technology for assigning group labels during touch sensing, and more particularly to a technology for preventing two adjacent objects from receiving a same group label by searching for a valley when group labels are assigned and this allows labeling without performing any object separation process.Type: GrantFiled: August 17, 2021Date of Patent: February 21, 2023Assignee: Silicon Works Co., Ltd.Inventors: Mohamed Gamal Ahmed Mohamed, Young Ju Park, Sun Young Park
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Publication number: 20230038703Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.Type: ApplicationFiled: October 18, 2022Publication date: February 9, 2023Applicant: Silicon Works Co., Ltd.Inventors: Jun Young Park, Ki Taek Kim
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Patent number: 11558060Abstract: A ratiometric analog-to-digital conversion circuit includes a first voltage range operation circuit configured to use a first power supply voltage of a first voltage range, and output an analog signal corresponding to an external input signal; and a second voltage range operation circuit configured to use a second power supply voltage of a second voltage range, generate a digital value by analog-to-digital converting the analog signal, feed back the digital value for analog-to-digital conversion, and output a digital signal corresponding to the digital value and proportional to the input signal.Type: GrantFiled: August 18, 2021Date of Patent: January 17, 2023Assignee: Silicon Works Co., LtdInventor: Jang Hyun Yoon
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Patent number: 11557238Abstract: According to an embodiment, both the high-speed communication and the low-speed communication are performed using a single communication line, thereby reducing limitations on wiring on a PCB and increasing the utilization efficiency of a transmission line.Type: GrantFiled: July 22, 2021Date of Patent: January 17, 2023Assignee: Silicon Works Co., Ltd.Inventors: Do Seok Kim, Yong Hwan Mun, Young Soo Ryu
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Patent number: 11556217Abstract: Disclosed is a technology that supplies a signal to a panel driving integrated circuit (IC). A plurality of signals having different characteristics are stably provided to a panel driving IC according to a display operation or a touch operation, by controlling capacitance connected to a transmission conduction wire.Type: GrantFiled: May 17, 2021Date of Patent: January 17, 2023Assignee: Silicon Works Co., Ltd.Inventors: Jung Min Choi, Jong Min Park, Hee Yoon Jung, Seong Sik Yoon
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Patent number: 11553569Abstract: The present disclosure relates to an LED driving technique. The present disclosure provides a technique of measuring a time for reaching a forward voltage of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line and for compensating for an ON period of a PWM (pulse width modulation) signal by the measured time for reaching the forward voltage.Type: GrantFiled: August 20, 2021Date of Patent: January 10, 2023Assignee: Silicon Works Co., Ltd.Inventors: Ji Hwan Kim, Kyeong Rok Lee, Jong Hyun Yoon
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Patent number: 11538382Abstract: The present disclosure discloses a driving integrated circuit for a display which is configured using MIM capacitors. The driving integrated circuit includes a first circuit formed in a substrate corresponding to a first region of a chip, a second circuit formed in the substrate corresponding to a second region of the chip, a first MIM capacitor formed in a first layer over the substrate and having a first capacity for the first circuit, and a second MIM capacitor formed in a second layer over the substrate and having a second capacity for the second circuit.Type: GrantFiled: April 6, 2021Date of Patent: December 27, 2022Assignee: Silicon Works Co., LtdInventor: Hee Joo Kim
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Patent number: 11527193Abstract: The present disclosure discloses a display driving apparatus in which the consumption power of a chip is optimized through control for each output channel of the chip. The display driving apparatus includes a consumption current control circuit for each output channel. The consumption current control circuit is configured to selectively provide a control current having a high current amount in order to drive an output voltage for the output side of an output buffer in response to a change in the pattern having a great difference between an input voltage and an output voltage.Type: GrantFiled: July 23, 2021Date of Patent: December 13, 2022Assignee: Silicon Works CO., LtdInventors: Young Bok Kim, Taiming Piao
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Patent number: 11521532Abstract: The present disclosure relates to a data driving device, a data processing device, and a system for driving a display device and, more particularly, it relates to a data driving device, a data processing device, and a system for smoothly performing a low-speed communication through a communication line including an alternating current coupling capacitor.Type: GrantFiled: May 13, 2021Date of Patent: December 6, 2022Assignee: Silicon Works Co., Ltd.Inventors: Do Seok Kim, Yong Hwan Mun, Myung Yu Kim, Hyun Pyo Cho
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Patent number: 11509314Abstract: The present disclosure discloses an all-digital phase-locked loop. The all-digital phase-locked loop may include a time-to-digital conversion circuit configured to convert phase differences between a reference signal and a feedback signal into respective digital values and to output a first data signal and a second data signal corresponding to the respective digital values, a digital loop filter configured to select one of the first data signal and the second data signal as valid data and output a control signal by operating the valid data and a first register signal, a digitally controlled oscillator configured to generate an oscillation signal and control a frequency of the oscillation signal in response to the control signal, and a divider configured to divide the oscillation signal and output the feedback signal to the time-to-digital conversion circuit.Type: GrantFiled: July 30, 2021Date of Patent: November 22, 2022Assignee: Silicon Works Co., Ltd.Inventors: Jong Suk Lee, Young Bok Kim, Chung Hwan Son, Seok Jae Oh, Yeh Ju Ka
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Patent number: 11508274Abstract: The present disclosure relates to a technique for determining a fault of a data line disposed in a display panel using a data driving device. The data driving device may determine a fault of a data line by supplying a data voltage corresponding to a greyscale value to a data line and checking whether another data line is influenced by the data voltage.Type: GrantFiled: June 24, 2021Date of Patent: November 22, 2022Assignee: Silicon Works Co., Ltd.Inventor: Jung Min Choi
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Patent number: 11508319Abstract: A source driver capable of improving sensing accuracy even when a black image signal is provided to reduce motion blur during a sensing period for sensing signals of pixels of a display panel, and a display device including the same. The source driver includes an output buffer configured to output a source signal; a voltage terminal applied with a black image signal of a preset voltage level; a source output terminal connected to a data line of a display panel; and a switch circuit configured to connect one of an output terminal of the output buffer and the voltage terminal to the source output terminal, wherein the switch circuit connects the voltage terminal to the source output terminal during a black image insertion period of a sensing period in which a pixel of the display panel is sensed.Type: GrantFiled: August 27, 2021Date of Patent: November 22, 2022Assignee: Silicon Works Co., LtdInventors: Won Kim, Young Bok Kim
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Patent number: 11508281Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.Type: GrantFiled: December 18, 2020Date of Patent: November 22, 2022Assignee: Silicon Works Co., Ltd.Inventors: Jun Young Park, Ki Taek Kim
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Patent number: 11482180Abstract: Disclosed are a device and method for measuring an organic light emitting diode, which measures an amount of energy for compensating for a burn-in of an organic light emitting diode, by sensing a charged voltage of a sensing line connected to the organic light emitting diode. The device for measuring an organic light emitting diode includes an external current source, and is configured to measure an amount of energy for compensating for a burn-in, by sensing a charged voltage of a parasitic capacitor of a sensing line.Type: GrantFiled: February 7, 2018Date of Patent: October 25, 2022Assignee: Silicon Works Co., Ltd.Inventors: Kyung Jik Min, Jeong Hoon Choi, Dong Ju Kim, Jung Bae Yun