公开(公告)号：US20220075980A1

公开(公告)日：2022-03-10

申请号：US17406299

申请日：2021-08-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JONG HYUN LEE ,  Eun Jin SUNG ,  Kyung Tea PARK ,  Kang Bin JO ,  Go Eun CHA

IPC: G06K9/00 ,  H01L51/52 ,  H01L27/32

Abstract: A display device includes a light emitting electrode on a thin film transistor layer. The thin film transistor layer includes a lower metal layer on a substrate and a semiconductor layer above and overlapping the lower metal layer. The lower metal layer includes a plurality of curved portions. Edges of respective ones of the curved portions are on concentric circles having substantially a same center point and an edge of the semiconductor layer is on the lower metal layer.

公开(公告)号：US20240103663A1

公开(公告)日：2024-03-28

申请号：US18519833

申请日：2023-11-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea PARK ,  Hyun Dae LEE ,  Kang Bin JO ,  Jong Hyun LEE

IPC: G06F3/041 ,  G06F3/044 ,  G06V40/13

CPC classification number: G06F3/04166 ,  G06F3/0443 ,  G06F3/0448 ,  G06V40/1306

Abstract: A display device includes a display panel including a plurality of touch electrodes, a touch driving circuit electrically connected to the plurality of touch electrodes, and a fingerprint sensor device disposed on one surface of the display panel and including a plurality of unit blocks. The fingerprint sensor device includes a plurality of fingerprint scan lines extending in a first direction, a plurality of fingerprint sensing lines extending in a second direction crossing the first direction, a plurality of sensor pixels respectively connected to the plurality of fingerprint scan lines and the plurality of fingerprint sensing lines, and a fingerprint scan driver having a plurality of stages for applying a fingerprint scan signal to each of the plurality of fingerprint scan lines. The touch driving circuit applies a start signal to the fingerprint scan driver.

公开(公告)号：US20230397885A1

公开(公告)日：2023-12-14

申请号：US18152640

申请日：2023-01-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Chul KIM ,  Kang Bin JO

IPC: A61B5/00 ,  G09G3/3233 ,  G06F3/041 ,  A61B5/021 ,  A61B5/024

CPC classification number: A61B5/6898 ,  G09G3/3233 ,  G06F3/0416 ,  G06F3/0414 ,  A61B5/02108 ,  A61B5/02416 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2360/14 ,  G09G2310/0213 ,  G09G2354/00 ,  G09G2380/08 ,  G09G2310/08 ,  G06F3/0412 ,  G09G3/2007

Abstract: A display device includes display pixels arranged in a display area of a display panel, light-sensing pixels arranged alternately with the display pixels in the display area, light-sensing scan lines, each divided into at least two horizontal lines disposed adjacent to each other and connected to light-sensing pixels disposed proximate to the at least two horizontal lines, a display scan driver configured to sequentially supply display scan signals to display pixels connected to each horizontal line through display scan lines corresponding to each horizontal line, a blood-pressure detecting circuit configured to measure a user's blood pressure using light-sensing signals input through the light-sensing pixels, and a display driving circuit configured to control a timing at which the display scan signals are supplied to the display scan lines and a timing at which sensing scan signals are supplied to the light-sensing scan lines.

公开(公告)号：US20230316966A1

公开(公告)日：2023-10-05

申请号：US18086659

申请日：2022-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Go Eun CHA ,  Il Nam KIM ,  Seung Hyun MOON ,  Dong Wook YANG ,  Hyun Dae LEE ,  Kang Bin JO

IPC: G09G3/00 ,  G01R31/28

CPC classification number: G09G3/006 ,  G01R31/2879 ,  G06V40/13

Abstract: A test system, a method of testing a display cell using the same, and a display device are provided. There is provided a test system comprising: a display cell including a pixel and a data line connected to the pixel, an optical sensor and a readout line connected to the optical sensor, and a signal selection unit for selectively connecting a test signal line to any one of the data line and the readout line; and a test member configured to apply a first test control signal to the signal selection unit in a data test mode and apply a second test control signal to the signal selection unit in a sensing test mode.

公开(公告)号：US20230114518A1

公开(公告)日：2023-04-13

申请号：US18064797

申请日：2022-12-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea PARK ,  Jong Hyun LEE ,  Kang Bin JO ,  Go Eun CHA

IPC: G09G3/20 ,  G06F3/041

Abstract: An input sensing device includes sensor pixels initialized in response to a reset signal provided through a reset line, and output a sensing signal to a read-out line in response to a scan signal provided through a scan line. A controller generates at least one start signal and clock signals. A selector selectively provides the at least one start signal and the clock signals to first control lines or second control lines. A reset driver connected to the first control lines, and supplying reset signals to at least some of the reset lines based on the at least one start signal and the clock signals provided through the first control lines. A scan driver is connected to the second control lines, and supplies scan signals to at least some of the scan lines based on the at least one start signal and the clock signals.

公开(公告)号：US20230075463A1

公开(公告)日：2023-03-09

申请号：US17662901

申请日：2022-05-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Hyun LEE ,  Il Nam KIM ,  Kang Bin JO ,  Dong Wook YANG

IPC: G06V40/13 ,  G09G3/3208

Abstract: A display device includes light emitting and receiving pixels, a reset line, a fingerprint scan line, a fingerprint sensing line, and first and second voltage lines in a display region. Each light receiving pixel includes a light receiving element including a first electrode and a second electrode connected to the second voltage line, a sensing transistor connecting the first electrode to the fingerprint sensing line according to a fingerprint scan signal applied to the fingerprint scan line and a reset transistor to connect the first voltage line to the first electrode according to a reset signal applied to the reset line. A first voltage applied to the first voltage line is greater than a second voltage applied to the second voltage line, and a third voltage applied to the fingerprint sensing line is greater than the second voltage and smaller than the first voltage.

公开(公告)号：US20240231534A9

公开(公告)日：2024-07-11

申请号：US18463400

申请日：2023-09-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byung Han YOO ,  Jung Woo PARK ,  Hyang A PARK ,  Dae Young LEE ,  Hyun Dae LEE ,  Kang Bin JO ,  Sang Hwan CHO ,  Sung-Chan JO

IPC: G06F3/041 ,  G06F3/04817 ,  G06F3/0488 ,  G06F21/32 ,  G06Q20/10 ,  G06Q20/40 ,  G06V40/12 ,  G06V40/13

CPC classification number: G06F3/04166 ,  G06F3/04817 ,  G06F3/0488 ,  G06F21/32 ,  G06Q20/108 ,  G06Q20/40145 ,  G06V40/1306 ,  G06V40/1365 ,  G06F2203/04104

Abstract: A method of driving an electronic device includes displaying a plurality of fingerprint recognition icons on a display device configured to perform fingerprint recognition, and releasing a lock state of the display device through a fingerprint authentication process upon determining at least one first fingerprint recognition icon among the plurality of fingerprint recognition icons is touched. The plurality of fingerprint recognition icons include at least one first fingerprint recognition icon configured to support the fingerprint recognition and at least one second fingerprint recognition icon configured to not support the fingerprint recognition.

公开(公告)号：US20240135744A1

公开(公告)日：2024-04-25

申请号：US18374547

申请日：2023-09-27

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Dae LEE ,  Il Nam KIM ,  Hyoung Wook JANG ,  Kang Bin JO ,  Go Eun CHA ,  Hee Chul HWANG

IPC: G06V40/13 ,  G06F1/16 ,  G06V40/12

CPC classification number: G06V40/1318 ,  G06F1/1643 ,  G06V40/1341 ,  G06V40/1365 ,  G06V2201/07

Abstract: A display device comprises a display panel comprising an image display area and a non-display area, display pixels comprising light-emitting elements in the image display area and pixel driving units connected to the light-emitting elements, light-sensing pixels comprising photo-detecting units in a fingerprint sensing area in the image display area, and sense driving units connected to the photo-detecting units, a light-sensing reset driver configured to supply reset signals to the sense driving units of the light-sensing pixels for at least each horizontal line among the light-sensing pixels in response to a line select signal from a display driving circuit; and a fingerprint scan driver configured to sequentially supply a fingerprint scan signal to the sense driving units of the light-sensing pixels in response to a fingerprint scan control signal from the display driving circuit.

公开(公告)号：US20240078835A1

公开(公告)日：2024-03-07

申请号：US18505052

申请日：2023-11-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea PARK ,  Jong Hyun LEE ,  Kang Bin JO ,  Go Eun CHA

IPC: G06V40/13 ,  G09G3/20

CPC classification number: G06V40/1306 ,  G06V40/1318 ,  G09G3/2092 ,  G09G2310/0275 ,  G09G2330/028

Abstract: An input sensing device includes: sensor pixels, a horizontal driver, a selection circuit, and a vertical driver. Each of the sensor pixels is connected to a plurality of driving lines and a one of a plurality of signal input lines. The horizontal driver sequentially applies a horizontal driving signal to the sensor pixels through the driving lines. The selection circuit is connected to n of the signal input lines (n is a natural number of 2 or more) and to one output line. The selection circuit sequentially outputs n sensing signals received through the n signal input lines to the one output line. The vertical driver receives the n sensing signals through the one output line. The horizontal driver applies the horizontal driving signal n times to a given one of the driving lines to correspond to the n sensing signals.

公开(公告)号：US20230360427A1

公开(公告)日：2023-11-09

申请号：US18135791

申请日：2023-04-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Nam KIM ,  Seung Hyun MOON ,  Dong Wook YANG ,  Hyun Dae LEE ,  Kang Bin JO ,  Go Eun CHA ,  Hee Chul HWANG

IPC: G06V40/13 ,  G09G3/3233 ,  H10K59/131 ,  H10K39/34

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  H10K59/131 ,  H10K39/34 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2360/14 ,  G09G2354/00

Abstract: A display device including: scan lines including first and second scan lines; pixels connected to the scan lines; photo sensors connected to some of the scan lines, the photo sensors including a first photo sensor connected to the first scan line and a readout line, and a second photo sensor connected to the second scan line and the readout line; a scan driver to provide scan signals to the scan lines; and a readout circuit to receive, through the readout line, detection signals which are outputted from the photo sensors in response to the scan signals, wherein, while the scan signals are provided to the first and second scan lines, the readout circuit samples a detection signal of one of the first photo sensor and the second photo sensor without sampling a detection signal of the other one of the first photo sensor and the second photo sensor.