公开(公告)号：US20220101794A1

公开(公告)日：2022-03-31

申请号：US17323251

申请日：2021-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyun Ho Kim ,  Jung Taek Kim ,  Hong Kyu Kim ,  Hyung Keun Park ,  Joon Suk Baik ,  Young Soo Sohn ,  Yong Jin Shin ,  Se Keun Lee

IPC: G09G3/3266 ,  H01L27/32 ,  G09G3/3275

Abstract: A display device includes: a pixel connected to each of a first scan line, a second scan line, and a data line; a scan driver supplying a first scan signal to the first scan line and a second scan signal to the second scan line; a controller dividing one frame period into an active period and a blank period and generating a count signal in which a time duration of the blank period is counted and a power control signal; a data driver supplying a data signal to the data line; and a power supply controlling a source driving voltage supplied to the data driver according to a duration of the blank period based on the power control signal. When the count signal reaches a reference value, the controller supplies a start signal for output of the first scan signal to the scan driver.

公开(公告)号：US11289018B2

公开(公告)日：2022-03-29

申请号：US17065418

申请日：2020-10-07

Applicant: Samsung Display Co., Ltd.

Inventor： Kyun Ho Kim ,  Yong-Jin Shin ,  Seong Jun Kim ,  Jung-Taek Kim ,  Joon Suk Baik ,  Se Keun Lee ,  Uk Jae Jang ,  Sang Su Han

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A display device includes: a net power control circuit configured to analyze a screen load from an input image signal to generate a load signal including a load value corresponding to the screen load; and an overcurrent protection circuit configured to set a set current value at a predetermined ratio with respect to a global current value corresponding to the load value included in the load signal, and to determine whether or not the display device is powered off based on the set current value.

公开(公告)号：US11250774B2

公开(公告)日：2022-02-15

申请号：US17021971

申请日：2020-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Bong Gyun Kang ,  Kyun Ho Kim ,  Sung-Mo Yang ,  Young Soo Sohn

IPC: G09G3/3225

Abstract: A display device includes: a screen saver operable to cause an image to be displayed with a lowered luminance in a screen save mode by lowering a scale factor from a first value based on the image being displayed as a still image longer than a reference time; and an overcurrent protection circuit operable to detect an overcurrent and cause a power of the display device to be turned off based on a predetermined current value that is reduced according to the scale factor and comparison between the predetermined current value and a driving current supplied provided to a display panel in which the image is displayed.

公开(公告)号：US20180137828A1

公开(公告)日：2018-05-17

申请号：US15801899

申请日：2017-11-02

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Jun Park ,  Kyun Ho Kim ,  Shim Ho Yi ,  Yong Jin Shin ,  Yu Chol Kim

IPC: G09G3/36 ,  H01L27/32 ,  G02F1/1335 ,  G09G3/34 ,  G09G3/3258 ,  G09G3/20

Abstract: A display device capable of setting an optimal output enable value according to a color pattern and a method for driving the display device. A timing controller is configured to receive an image signal from an external source, identify a color pattern and set an output enable value corresponding to the identified color pattern. A scan driver is configured to receive the output enable value and generate a first scan signal having a first turn-on signal and a second scan signal adjacent to the first scan signal and having a second turn-on signal. The scan driver may adjust an interval between the first turn-on signal and the second turn-on signal based on the output enable value.

公开(公告)号：US12100341B2

公开(公告)日：2024-09-24

申请号：US18327859

申请日：2023-06-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Taek Kim ,  Sang Su Han ,  Kyun Ho Kim ,  Hyung Keun Park ,  Joon Suk Baik ,  Se Keun Lee

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/36

CPC classification number: G09G3/32 ,  G09G3/2092 ,  G09G3/3233 ,  G09G3/36 ,  G09G3/3648 ,  G09G2310/0205 ,  G09G2310/027 ,  G09G2310/0278 ,  G09G2310/061 ,  G09G2310/062 ,  G09G2320/0252 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.

公开(公告)号：US12016116B2

公开(公告)日：2024-06-18

申请号：US18208923

申请日：2023-06-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yong Jin Shin ,  Kyun Ho Kim ,  Uk Jae Jang ,  Bong Im Park

IPC: H05K1/02 ,  G09G3/00 ,  H01L23/498 ,  H05K1/14 ,  H05K1/18

CPC classification number: H05K1/0268 ,  G09G3/006 ,  H01L23/49838 ,  H05K1/14 ,  H05K1/18 ,  G09G2330/12 ,  H01L23/4985 ,  H05K2201/049 ,  H05K2201/10128

Abstract: A display device including: a display panel; a first substrate attached to a side of the display panel; and a second substrate attached to a side of the first substrate, wherein the display panel includes a first panel test pad and a second panel test pad, the first substrate includes a 1-1 circuit test lead overlapping and connected to the first panel test pad, a 1-2 circuit test lead overlapping and connected to the second panel test pad, a 2-1 circuit test lead overlapping and connected to the second substrate, a 1-1 test lead line connected to the 1-1 circuit test lead, a 1-2 test lead line connected to the 1-2 circuit test lead, and a first test lead line connected to the 2-1 circuit test lead, and the 1-1 test lead line and the 1-2 test lead line are connected to the first test lead line.

公开(公告)号：US11545068B2

公开(公告)日：2023-01-03

申请号：US17036916

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Su Han ,  Kyun Ho Kim ,  Seong Jun Kim ,  Jung Taek Kim ,  Hyung Keun Park ,  Joon Suk Baik ,  Se Keun Lee

IPC: G09G3/20

Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.

公开(公告)号：US11423848B2

公开(公告)日：2022-08-23

申请号：US17189614

申请日：2021-03-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang An Kwon ,  Kyun Ho Kim ,  Woo Mi Bae ,  Jun Woo Son

IPC: G09G3/32 ,  G09G3/3291 ,  G09G5/06

Abstract: A display device comprises a timing controller which provides data comprising a pre-emphasis value and an image data value, and a data driver which supplies to data lines a pre-emphasis voltage generated based on the pre-emphasis value during a first period of a horizontal period, and supplies to the data lines a data voltage generated based on the image data value during a second period of the horizontal period. The timing controller provides data based on which the pre-emphasis value is changed in correspondence with one screen mode selected from a plurality of screen modes having different target color coordinates.

公开(公告)号：US11282441B2

公开(公告)日：2022-03-22

申请号：US17037089

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Jung Taek Kim ,  Sang Su Han ,  Kyun Ho Kim ,  Hyung Keun Park ,  Joon Suk Baik ,  Se Keun Lee

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/36

Abstract: A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.

公开(公告)号：US10978012B2

公开(公告)日：2021-04-13

申请号：US16898011

申请日：2020-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Jun Park ,  Kyun Ho Kim ,  Shim Ho Yi ,  Yong Jin Shin ,  Yu Chol Kim

IPC: G09G3/36 ,  G09G3/20 ,  G02F1/13357 ,  G09G3/3258 ,  G09G3/34 ,  H01L27/32

Abstract: A display device capable of setting an optimal output enable value according to a color pattern and a method for driving the display device. A timing controller is configured to receive an image signal from an external source, identify a color pattern and set an output enable value corresponding to the identified color pattern. A scan driver is configured to receive the output enable value and generate a first scan signal having a first turn-on signal and a second scan signal adjacent to the first scan signal and having a second turn-on signal. The scan driver may adjust an interval between the first turn-on signal and the second turn-on signal based on the output enable value.