公开(公告)号：US20210304680A1

公开(公告)日：2021-09-30

申请号：US17143191

申请日：2021-01-07

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JINYOUNG ROH ,  BONGHYUN YOU ,  HYOJIN LEE ,  JAEKEUN LIM

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US20240338095A1

公开(公告)日：2024-10-10

申请号：US18423672

申请日：2024-01-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KYOUNGHUN BEEN ,  HYOJIN LEE ,  YOUNGSIK KIM ,  BYEONGKYU JEON

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041662 ,  G06F3/04184 ,  G06F3/0446 ,  G06F2203/04101

Abstract: Disclosed is an electronic device which include a display layer that includes a plurality of pixels, a sensor layer disposed on the display layer and includes a plurality of first electrodes and a plurality of second electrodes, a display driver that drives the display layer, and a sensor driver that drives the sensor layer and selectively operates, in a proximity sensing mode, in a first mode or a second mode different from the first mode. When the electronic device enters the proximity sensing mode, the display layer operates in an active period during which data are received from the display driver and a blank period during which the data are not received. The sensor driver operates in the second mode in a period overlapping the blank period.

公开(公告)号：US20220415233A1

公开(公告)日：2022-12-29

申请号：US17903423

申请日：2022-09-06

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JAEKEUN LIM ,  JINYOUNG ROH ,  HYOJIN LEE

IPC: G09G3/20

Abstract: A display device includes a display panel including a first display region and a second display region surrounding the first display region, where a first pixel having a first size is disposed in the first display region, and a second pixel having a second size is disposed in the second display region, a gate driver which applies a gate signal to a gate line, a data driver which applies a data voltage to a data line, and a timing controller which controls the gate driver and the data driver. The gate line includes a first gate line connected to both the first pixel and the second pixel, and a second gate line connected only to the second pixel. The data line includes a first data line which does not transmit the data voltage to the second pixel connected to the second gate line, and a second data line which transmits the data voltage to the second pixel connected to the second gate line.

公开(公告)号：US20220230571A1

公开(公告)日：2022-07-21

申请号：US17548960

申请日：2021-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JAEKEUN LIM ,  JINYOUNG ROH ,  HYOJIN LEE

IPC: G09G3/20

Abstract: A display device includes a display panel including a first display region and a second display region surrounding the first display region, where a first pixel having a first size is disposed in the first display region, and a second pixel having a second size is disposed in the second display region, a gate driver which applies a gate signal to a gate line, a data driver which applies a data voltage to a data line, and a timing controller which controls the gate driver and the data driver. The gate line includes a first gate line connected to both the first pixel and the second pixel, and a second gate line connected only to the second pixel. The data line includes a first data line which does not transmit the data voltage to the second pixel connected to the second gate line, and a second data line which transmits the data voltage to the second pixel connected to the second gate line.

公开(公告)号：US20220059034A1

公开(公告)日：2022-02-24

申请号：US17515742

申请日：2021-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： HYOJIN LEE ,  Sehyuk PARK ,  Jinyoung ROH ,  Geunjeong PARK ,  EUNHO LEE ,  Hui NAM ,  BONGHYUN YOU

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

公开(公告)号：US20220028334A1

公开(公告)日：2022-01-27

申请号：US17244095

申请日：2021-04-29

Applicant: Samsung Display Co., Ltd.

Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JINYOUNG ROH ,  HYOJIN LEE ,  JAEKEUN LIM

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283

Abstract: A display device includes a display panel which defines first and second display areas, and includes pixels connected to data lines and scan lines, respectively, a data driving circuit which drives the data lines, a scan driving circuit which drives the scan lines, and a driving controller which receives an image signal and a control signal, control the data and scan driving circuits according to an operation mode, and output clock signals. In a multi-frequency mode, the scan driving circuit includes a first scan driving circuit corresponding to the first display area and a second scan driving circuit corresponding to the second display area. The second scan driving circuit sequentially drives first scan lines among scan lines corresponding to the second display area during a first frame, and sequentially drives second scan lines among scan lines corresponding to the second display area during a second frame.

公开(公告)号：US20220020328A1

公开(公告)日：2022-01-20

申请号：US17219729

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： JAEKEUN LIM ,  HONGSOO KIM ,  JINYOUNG ROH ,  SEHYUK PARK ,  HYOJIN LEE

IPC: G09G3/3258

Abstract: A display device includes a pixel, wherein the pixel includes a light emitting element, a first transistor connected to a first power line and the light emitting element and controlled by a voltage of a first node, a second transistor connected to a data line and the first transistor and controlled by an i-th scan signal, a third-first transistor connected to the first transistor and a second node and controlled by a first control signal, a third transistor connected to the second node and the first node and controlled by a second control signal, and a dummy transistor including a first electrode receiving a reference voltage, a second electrode connected to the second node, and a control electrode connected to an emission line.

公开(公告)号：US20200243008A1

公开(公告)日：2020-07-30

申请号：US16739875

申请日：2020-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYOJIN LEE ,  EUNHO LEE ,  JINYOUNG ROH ,  SEHYUK PARK ,  BONG HYUN YOU

IPC: G09G3/3233 ,  H01L29/786 ,  G09G3/3258

Abstract: A display apparatus includes a display panel displaying an image based on input image data, a driving controller determining a low frequency driving mode and a normal driving mode based on the input image data, a gate driver outputting a gate signal, a data driver outputting a data voltage, and a power voltage generator outputting power voltages. The driving controller is configured to generate a writing frame in which data is written in a pixel of the display panel and a holding frame in which the written data is maintained without writing data in the pixel in the low frequency driving mode. The driving controller is configured to operate at least one of the driving controller, the data driver, and the power voltage generator in a power reducing mode during the holding frame.