公开(公告)号：US20240233618A9

公开(公告)日：2024-07-11

申请号：US18230668

申请日：2023-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： EUNJIN CHOI ,  GEONHWI PARK ,  JANG-MI LEE ,  KIHYUN PYUN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.

公开(公告)号：US20240135865A1

公开(公告)日：2024-04-25

申请号：US18230668

申请日：2023-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： EUNJIN CHOI ,  GEONHWI PARK ,  JANG-MI LEE ,  KIHYUN PYUN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.

公开(公告)号：US20230030280A1

公开(公告)日：2023-02-02

申请号：US17876490

申请日：2022-07-28

Applicant: Samsung Display Co., LTD.

Inventor： KIHYUN PYUN ,  JANG-MI LEE

IPC: G09G3/20

Abstract: A controller to drive a display includes a voltage code generator and a voltage code compensator. The voltage code generator is configured to generate a first voltage code to drive pixels in the display based on input image data. The voltage code compensator is to generate a second voltage code to drive the pixels by compensating zero-grayscale codes of the first voltage code based on the zero-grayscale codes of the first voltage code, one-grayscale codes of the first voltage code, and the input image data.

公开(公告)号：US20230274686A1

公开(公告)日：2023-08-31

申请号：US18079607

申请日：2022-12-12

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  JANG-MI LEE

IPC: G09G3/20 ,  G01R19/165

CPC classification number: G09G3/2096 ,  G01R19/16571 ,  G09G3/2007 ,  G09G2330/021 ,  G09G2300/0828

Abstract: A display device may include a display panel which displays an image based on image data, a power supply which provides a driving voltage to the display panel through a power line, a current sensor which generates first current data including average, minimum, and maximum sensing currents of a first period based on sensing currents generated by sampling a current flowing through the power line at a sampling frequency, generates second current data including average, minimum, and maximum sensing currents of a second period less than the first period based on the sensing currents, and includes a first controller controlling the image data or the power supply based on the second current data, and a timing controller which communicates with the current sensor, and includes a second controller controlling the image data or the power supply based on the first and second current data.

公开(公告)号：US20220261049A1

公开(公告)日：2022-08-18

申请号：US17454512

申请日：2021-11-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOSEOK YUN ,  TAEGON KIM ,  MYOUNGSEOP SONG ,  JONGMIN SHIM ,  JANG-MI LEE ,  KIHYUN PYUN

IPC: G06F1/18 ,  G09G3/20

Abstract: A circuit board assembly includes a main board and a connection board attached to the main board. The connection board includes a base board including a connecting pad area and a mounting area, wherein the connection board is attached to the main board in the connecting pad area, and wherein the mounting area is spaced apart from the connecting pad area in a first direction and includes a driving chip mounted thereon. The connection board further includes first connection pads disposed on the connecting pad area of the base board, and second connection pads disposed on the connecting pad area of the base board. The main board includes first main pads connected to the first connection pads in a one-to-one connection and a second main pad connected to the second connection pads in a many-to-one connection.

公开(公告)号：US20230386385A1

公开(公告)日：2023-11-30

申请号：US18128142

申请日：2023-03-29

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  JANG-MI LEE

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G3/2096 ,  G09G2330/028 ,  G09G2320/0242 ,  G09G2330/025

Abstract: A display apparatus includes a display panel, a power voltage generator, a current sensor, a driving controller and a data driver. The power voltage generator is configured to generate a power voltage and output the power voltage to the display panel. The current sensor is configured to sense a panel current of the display panel and output an overcurrent signal based on the panel current being greater than a threshold value. The driving controller is configured to generate a compensation value based on the overcurrent signal and generate a data signal to which the compensation value is applied. The data driver is configured to generate a data voltage based on the data signal and output the data voltage to the display panel.

公开(公告)号：US20230298528A1

公开(公告)日：2023-09-21

申请号：US18098695

申请日：2023-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： JANG-MI LEE ,  EUNJIN CHOI ,  KIHYUN PYUN

IPC: G09G3/3258 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/32 ,  G09G2330/08 ,  G09G2330/04

Abstract: Disclosed is a display device including a display panel, a voltage generator, a current detector, and a current controller. The display panel includes a pixel for receiving a driving voltage. The voltage generator generates the driving voltage, determines a voltage level of the driving voltage based on a voltage control signal, and performs a protection operation in response to a protection signal. The current detector detects a driving current of the display panel and outputs a current signal corresponding to the detected driving current. The current controller includes a current comparison unit that generates a result signal by comparing a present current level of the current signal from the current detector to a previous current level and a protection operating unit that receives the result signal and outputs the protection signal based on a change in the load and a difference between the target current and the current signal.

公开(公告)号：US20180151127A1

公开(公告)日：2018-05-31

申请号：US15714020

申请日：2017-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： HYEONUK WON ,  JANG-MI LEE ,  WONJIN SEO ,  HYUN-SIK YOON

IPC: G09G3/3275 ,  G09G3/36 ,  G09G3/3258

CPC classification number: G09G3/3275 ,  G09G3/3258 ,  G09G3/3659 ,  G09G3/3688 ,  G09G2300/0439 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2340/16 ,  G09G2360/16

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a timing controller. The display panel displays an image. The gate driver outputs a gate signal to the display panel. The data driver includes a plurality of data driving chips which outputs data voltages to the display panel based on data signals. The timing controller adjusts a waveform of the data signals based on a temperature of the data driving chips.