公开(公告)号：US20220114966A1

公开(公告)日：2022-04-14

申请号：US17450413

申请日：2021-10-08

Applicant: Silicon Works Co., Ltd.

Inventor： Seong Geon KIM ,  Young Bok KIM

IPC: G09G3/3258

Abstract: A display driving apparatus includes an internal reference voltage generation circuit configured to generate and provide an internal reference voltage; a sensing circuit configured to simultaneously sense pixel signals provided from pixels of a display panel and the internal reference voltage, and output a reference voltage sensing signal generated by sensing of the internal reference voltage and pixel sensing signals generated by sensing of the pixel signals; and an output circuit configured to sequentially select the reference voltage sensing signal and the pixel sensing signals, convert the pixel sensing signals into pixel data, convert the reference voltage sensing signal into reference data, and transmita the pixel data and the reference data.

公开(公告)号：US20220026856A1

公开(公告)日：2022-01-27

申请号：US17443799

申请日：2021-07-27

Applicant: Silicon Works Co., Ltd.

Inventor： Jong Suk LEE ,  Young Bok KIM ,  Chung Hwan SON ,  Seok Jae OH ,  Yeh Ju KA

IPC: G04F10/00 ,  H03L7/085

Abstract: The present disclosure discloses a time-to-digital conversion circuit for a clock and data recovery circuit. The time-to-digital conversion circuit may include a first time-to-digital conversion circuit enabled when a phase difference between a clock of an input signal and a recovery clock signal is greater than a reference phase difference and configured to output a first digital signal corresponding to the phase difference, and a second time-to-digital conversion circuit enabled when the phase difference is equal to or smaller than the reference phase difference and configured to output a second digital signal corresponding to the phase difference.

公开(公告)号：US20210358421A1

公开(公告)日：2021-11-18

申请号：US17317609

申请日：2021-05-11

Applicant: Silicon Works Co., Ltd.

Inventor： Won KIM ,  Young Bok KIM

IPC: G09G3/3291

Abstract: The present disclosure discloses a source driver capable of accurately sensing characteristics of a display panel by minimizing the influence of a floating channel. The source driver may include normal channels connected to pixels of a display panel, a floating channel under no-load; and a sampling circuit configured to sample signals of the normal channels and the floating channel. The source driver may provide a first reference voltage to the floating channel in a first period in which characteristics of the pixels are sensed.

公开(公告)号：US20170249913A1

公开(公告)日：2017-08-31

申请号：US15439200

申请日：2017-02-22

Applicant: SILICON WORKS CO., LTD.

Inventor： Young Bok KIM ,  Hyun Kyu JEON ,  Joon Ho NA

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2310/0251 ,  G09G2310/0291 ,  G09G2310/061

Abstract: Disclosed is a display driving device. The display driving device may include: a buffer circuit including a positive output amplifier and a negative output amplifier; a switch circuit including output switches connected in series between the positive output amplifier and a first source output terminal, between the positive output amplifier and a second source output terminal, between the negative output amplifier and the first source output terminal, and between the negative output amplifier and the second source output terminal, respectively; and a reset circuit configured to reset output terminals of the positive output amplifier and the negative output amplifier to a middle voltage immediately before switching of the switch circuit for polarity inversion of the first and second source output terminals.

公开(公告)号：US20170243797A1

公开(公告)日：2017-08-24

申请号：US15439178

申请日：2017-02-22

Applicant: SILICON WORKS CO., LTD.

Inventor： Young Bok KIM ,  Dong Hun Lee ,  Hyun Kyu Jeon ,  Joon Ho Na

IPC: H01L21/66 ,  H01L23/00

CPC classification number: H01L22/34 ,  G01R27/205 ,  G01R31/046 ,  G01R31/2884 ,  G09G3/006 ,  G09G3/3696 ,  G09G2300/0408 ,  H01L24/48 ,  H01L2224/48227 ,  H01L2924/00014 ,  H01L2924/30101 ,  H01L2224/85399 ,  H01L2224/05599

Abstract: Disclosed is a display driving device including a bonding resistance measurement circuit. The display driving device may include: first and second pads bonded to a pad of a display panel through a wire and configured to provide bonding resistance; and a bonding resistance measurement circuit configured to measure the bonding resistance by comparing an input voltage applied to the bonding resistance through the first pad to one or more preset reference voltages.

公开(公告)号：US20220038106A1

公开(公告)日：2022-02-03

申请号：US17389663

申请日：2021-07-30

Applicant: Silicon Works Co., Ltd.

Inventor： Jong Suk LEE ,  Young Bok KIM ,  Chung Hwan SON ,  Seok Jae OH ,  Yeh Ju KA

IPC: H03L7/093 ,  H03L7/099

Abstract: The present disclosure discloses a digital loop filter in an all-digital phase-locked loop. The digital loop filter may include a selection circuit configured to output one of a first data signal and a second data signal as valid data, a first operation circuit configured to output a first operation signal by adding or subtracting the valid data and a first register signal, a first register circuit configured to register the first operation signal and output the first operation signal as the first register signal, a second operation circuit configured to output a second operation signal by adding or subtracting a value of at least one bit of the valid data and the first register signal, and a second register circuit configured to store the second operation signal and output the second operation signal as a control signal.

公开(公告)号：US20220028324A1

公开(公告)日：2022-01-27

申请号：US17384575

申请日：2021-07-23

Applicant: Silicon Works Co., Ltd.

Inventor： Young Bok KIM ,  Taiming PIAO

IPC: G09G3/20

Abstract: 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.

公开(公告)号：US20210193056A1

公开(公告)日：2021-06-24

申请号：US17124934

申请日：2020-12-17

Applicant: SILICON WORKS CO., LTD.

Inventor： Taiming PIAO ,  Young Bok KIM ,  Won KIM ,  Young Ho SHIN

IPC: G09G3/3291 ,  G09G3/3233

Abstract: The present disclosure relates to a technology for adjusting differences among integrated circuits, that may occur in a pixel sensing, using bias voltages, and more particularly, a technology for adjusting a gain or an offset of each integrated circuit by adjusting a bias voltage.

公开(公告)号：US20170169777A1

公开(公告)日：2017-06-15

申请号：US15378316

申请日：2016-12-14

Applicant: SILICON WORKS CO., LTD.

Inventor： Young Bok KIM ,  Hak Jin JUNG ,  Hyun Kyu JEON ,  Joon Ho NA

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2300/0823 ,  G09G2310/0291 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/041

Abstract: An output circuit of a display driving device may include: a first buffer including first and third output units driven in a range of a positive output signal included in an output voltage domain corresponding to a display panel; a second buffer including second and fourth output units driven in a range of a negative output signal included in the output voltage domain corresponding to the display panel; a first body control unit configured to control a body voltage of the first output unit and the second output unit; and a second body control unit configured to control a body voltage of the third output unit and the fourth output unit.

公开(公告)号：US20160098951A1

公开(公告)日：2016-04-07

申请号：US14875938

申请日：2015-10-06

Applicant: SILICON WORKS CO., LTD.

Inventor： Young Bok KIM ,  Young Tae Kim ,  Joon Ho Na

IPC: G09G3/20

CPC classification number: G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2330/023

Abstract: Disclosed are a source driver and a display device including the same. The source driver may include: an output buffer unit including a pair of output buffers controlled by a first power down signal and another pair of output buffers controlled by a second power down signal; and a charge sharing unit configured to control output buffers to share charge when the first or second power down signal is enabled, the output buffers being driven in the same driving range among the pair of output buffers and the other pair of output buffers.

Abstract translation: 公开了一种源驱动器和包括其的显示装置。 源极驱动器可以包括：输出缓冲器单元，包括由第一掉电信号控制的一对输出缓冲器和由第二掉电信号控制的另一对输出缓冲器; 以及电荷共享单元，被配置为当所述第一或第二掉电信号被使能时，控制输出缓冲器共享电荷，所述输出缓冲器被驱动在所述一对输出缓冲器和所述另一对输出缓冲器中的相同的驱动范围内。