公开(公告)号：US11847278B2

公开(公告)日：2023-12-19

申请号：US17747521

申请日：2022-05-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sewhan Na ,  Jiheon Ok ,  Unki Park ,  Jaeyoul Lee ,  Hyunwook Lim

IPC: G06F3/041 ,  G09G3/20

CPC classification number: G06F3/04182 ,  G06F3/0412 ,  G09G3/2092 ,  G09G2300/0842 ,  G09G2310/0297

Abstract: A display device includes a display panel, a touch sensor, a display driver and a touch controller. The display driver drives the display panel based on input image data, and generates predicted noise data corresponding to the input image data by using an artificial neural network. The touch controller receives a touch sensing signal from the touch sensor by driving the touch sensor, converts the touch sensing signal that is an analog signal into touch sensing data that are digital data, and compensates the touch sensing data based on the predicted noise data.

公开(公告)号：US11657769B1

公开(公告)日：2023-05-23

申请号：US17895544

申请日：2022-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoungyoon Jang ,  Sewhan Na ,  Jonghee Na ,  Yonghoon Yu ,  Hyunwook Lim

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2360/16

Abstract: An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.

公开(公告)号：US11656729B2

公开(公告)日：2023-05-23

申请号：US17590008

申请日：2022-02-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junchul Park ,  Jonghee Na ,  Gwangho Nam ,  Taekon Yu ,  Hyunwook Lim ,  Woohyuk Jang ,  Bumsoo Kim ,  Byunghwee Park ,  Wongab Jung ,  Yoon-Kyung Choi

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0445 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166

Abstract: A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.

公开(公告)号：US11295677B2

公开(公告)日：2022-04-05

申请号：US17208206

申请日：2021-03-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jooyoung An ,  Jiheon Ok ,  Hyunwook Lim

IPC: G09G3/3266

Abstract: A display driver integrated circuit includes a first memory, a compensator, an accumulator and a second memory. The first memory stores a plurality of compensation data that are used to compensate for deterioration of a plurality of pixels. The compensator generates a plurality of output image data for image display by compensating a plurality of input image data based on the plurality of compensation data. The accumulator groups the plurality of pixels into a plurality of blocks, generates a plurality of block image data by sampling the plurality of output image data in block units, generates a plurality of block accumulation data in block units based on the plurality of block image data, and generates a plurality of pixel accumulation data in pixel units by synthesizing portions of the plurality of output image data and portions of the plurality of block accumulation data. The second memory stores the plurality of block accumulation data in a first period. The plurality of pixel accumulation data may be stored in a third memory in a second period longer than the first period.

公开(公告)号：US11223468B1

公开(公告)日：2022-01-11

申请号：US17194831

申请日：2021-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungho Ryu ,  Kyongho Kim ,  Kilhoon Lee ,  Yeongcheol Rhee ,  Taeho Lee ,  Hyunwook Lim ,  Younghwan Chang ,  Sengsub Chun

IPC: H04L7/00 ,  H04L27/01

Abstract: A receiver circuit includes an equalizer configured to generate an equalization signal by equalizing an input data signal transferred through a communication channel based on an equalization coefficient; a clock data recovery circuit configured to generate a data clock signal and an edge clock signal based on the equalization signal, generate a data sample signal including a plurality of data bits by sampling the equalization signal in synchronization with the data clock signal, and generate an edge sample signal including a plurality of edge bits by sampling the equalization signal in synchronization with the edge clock signal; and an equalization control circuit configured to control the equalization coefficient by comparing the plurality of data bits and the plurality of edge bits.

公开(公告)号：US11087721B2

公开(公告)日：2021-08-10

申请号：US16584228

申请日：2019-09-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taewoo Kim ,  Hongki Kwon ,  Jaehun Kim ,  Jinyong Park ,  Jaeyoul Lee ,  Hyunwook Lim ,  Woohyuk Jang ,  Hojun Chung

IPC: G09G5/393 ,  G06T5/00 ,  G06T5/50

Abstract: A display driver circuit includes a receiver that receives a still image or a moving image, a frame buffer that stores the still image received by the receiver in a still image mode, an image processor that performs an image enhancement operation on the moving image transferred from the receiver or the still image transferred from the frame buffer, and a motion processor that performs a motion compensation operation using a current frame output from the image processor and a previous frame stored in the frame buffer in a moving image mode. The previous frame is data which, in the moving image mode, are processed by the image processor before the current frame and are then stored in the frame buffer. The previous frame is output from the frame buffer to the motion processor in synchronization with the current frame.

公开(公告)号：US20210067310A1

公开(公告)日：2021-03-04

申请号：US16878728

申请日：2020-05-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JUNGPIL LIM ,  Kyungho Ryu ,  Kilhoon Lee ,  Hyunwook Lim

IPC: H04L7/00

Abstract: A display device including: a timing controller outputting a reference clock signal and a data packet, wherein the data, packet includes a clock signal embedded in a data signal; a clock and data recovery (CDR) circuit receiving the reference clock signal and the data packet; and a display panel displaying an image based on the data packet, wherein, when the CDR circuit receives the reference clock signal, a frequency band of the reference clock signal is detected using a first internal clock signal, a parameter associated with jitter characteristics of the clock and data recovery circuit is adjusted according to the detected frequency band, and a second internal clock signal is output by adjusting a frequency of the first internal clock signal and when the CDR circuit receives the data packet, the data signal and a clock signal synchronized with the data signal are recovered from the data packet.