公开(公告)号：US20250104463A1

公开(公告)日：2025-03-27

申请号：US18745083

申请日：2024-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim SONG ,  Cheol Gon LEE ,  Mu Kyung JEON

IPC: G06V40/13

Abstract: A fingerprint sensor includes: a gate line on a substrate and configured to supply a gate signal; a reset voltage line configured to supply a reset voltage; an initialization voltage line configured to supply an initialization voltage; a read-out line on the gate line and configured to supply a sensing signal; a light receiving element on the read-out line; a first sensor transistor configured to supply a sensing current based on a voltage of a sensor node, which is a first electrode of the light receiving element; a second sensor transistor comprising a second-first sensor transistor and a second-second sensor transistor connected in series between the reset voltage line and a gate electrode of the first sensor transistor; and a third sensor transistor comprising a third-first sensor transistor and a third-second sensor transistor connected in series between the read-out line and a first electrode of the first sensor transistor.

公开(公告)号：US20240423038A1

公开(公告)日：2024-12-19

申请号：US18439660

申请日：2024-02-12

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Hoe LEE ,  Hee Rim SONG ,  So Il YOON ,  Cheol Gon LEE ,  Mu Kyung JEON

IPC: H10K59/131

Abstract: A display device includes a substrate, a circuit layer, and an element layer. The substrate includes a display area, and a non-display area. The display area includes emission areas, a non-emission area, and light sensing areas in parts of the non-emission area. The element layer includes light emitting elements in the emission areas, and light sensing elements in the light sensing areas. The circuit layer includes light emitting pixel drivers, light sensing pixel drivers, data lines, read-out lines extending parallel to the data lines, first dummy lines extending in a first direction, and second dummy lines extending in a second direction and respectively paired with the data lines. The first dummy lines include a first read-out bypass line electrically connected to a first read-out line. The second dummy lines include a first read-out connection line electrically connected to the first read-out bypass line.

公开(公告)号：US20240135743A1

公开(公告)日：2024-04-25

申请号：US18340187

申请日：2023-06-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Cheol Gon LEE ,  Hee Rim SONG

IPC: G06V40/13 ,  G09G3/3233

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2354/00

Abstract: A display device includes a plurality of pixels configured to display light, a plurality of first optical sensors configured to sense the light, a plurality of second optical sensors configured to sense the light, a plurality of first scan lines respectively connected to the plurality of pixels and the plurality of first optical sensors, a plurality of second scan lines respectively connected to the plurality of second optical sensors, a first scan driver configured to output a first scan signal to each of the plurality of first scan lines, and a second scan driver configured to output a second scan signal to each of the plurality of second scan lines.

公开(公告)号：US20230343289A1

公开(公告)日：2023-10-26

申请号：US18108823

申请日：2023-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim SONG ,  Hee Jean PARK ,  Yu Jin LEE ,  Cheol Gon LEE ,  Mu Kyung JEON

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

CPC classification number: G09G3/3233 ,  G06V40/1318 ,  H10K39/34 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

公开(公告)号：US20230343277A1

公开(公告)日：2023-10-26

申请号：US18217960

申请日：2023-07-03

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol Gon LEE ,  Hee Jean PARK ,  Hee Rim SONG ,  Yu Jin LEE ,  Mu Kyung JEON

IPC: G06V40/13 ,  G09G3/32

CPC classification number: G09G3/32 ,  G06V40/1318 ,  G09G2300/0413 ,  G09G2300/0809 ,  G09G2330/028

Abstract: A display device includes: pixel circuits arranged in a first direction on each of a first pixel row and a second pixel row; dummy sensor circuits arranged in a predetermined interval between the pixel circuits on the first pixel row; sensor circuits arranged in the interval between the pixel circuits on the second pixel row; light emitting elements disposed on the pixel circuits and connected to each of the pixel circuits; first light receiving elements on at least some of the pixel circuits of the first pixel row and the dummy sensor circuits; and second light receiving elements on at least some of the pixel circuits of the second pixel row and the sensor circuits. One of the sensor circuits is connected to at least two of the first light receiving elements and at least two of the second light receiving elements.

公开(公告)号：US20230292560A1

公开(公告)日：2023-09-14

申请号：US18051951

申请日：2022-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JUN HYUN PARK ,  Hyeong Seok KIM ,  Young Wan SEO ,  Yu Jin LEE ,  Cheol Gon LEE

IPC: H10K59/126 ,  G09G3/3233 ,  H01L27/12

CPC classification number: H10K59/126 ,  G09G3/3233 ,  H01L27/1248 ,  G09G2320/0233 ,  G09G2300/0426 ,  G09G2300/0809

Abstract: A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.

公开(公告)号：US20210399083A1

公开(公告)日：2021-12-23

申请号：US17466254

申请日：2021-09-03

Applicant: Samsung Display Co., LTD.

Inventor： Jang Mi KANG ,  Cheol Gon LEE ,  Jae Yong JANG ,  Mee Hye JUNG

IPC: H01L27/32 ,  G06F3/044 ,  G06F3/041 ,  H01L51/52

Abstract: A display device includes a display panel having a display area and a non-display area, signal wires disposed in the display area, connection wires disposed in the display area and electrically connected to the signal wires, and touch electrodes disposed on the connection wires. The connection wires include diagonal portions extending in a diagonal direction, and first protrusion patterns protruding from the diagonal portions of the connection wires. Parts of the first protrusion patterns overlap the touch electrodes.

公开(公告)号：US20190148477A1

公开(公告)日：2019-05-16

申请号：US16189270

申请日：2018-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Hyun PARK ,  Cheol Gon LEE ,  Chong Chul CHAI ,  Yang Hwa CHOI

IPC: H01L27/32

Abstract: A display device includes: an initialization power line extending along a first direction; a scan line extending along the first direction and spaced apart from the initialization power line, a data line and a driving voltage line insulated from the initialization power line and the scan line and extending along the second direction; a first switching element including a first electrode connected to the driving voltage line, a first gate electrode overlapping the initialization power line, and a second electrode; a second switching element including a third electrode connected to the first gate electrode, a second gate electrode connected to the scan line, and a fourth electrode; a third switching element including a fifth electrode connected to the fourth electrode, a third gate electrode connected to the initialization power line, and a sixth electrode connected to the second electrode; and a light emitting element connected to the second electrode.

公开(公告)号：US20250048866A1

公开(公告)日：2025-02-06

申请号：US18788141

申请日：2024-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol Gon LEE ,  So Il YOON ,  Kyung Hoe LEE ,  Mu Kyung JEON

IPC: H10K59/131 ,  G06V40/13 ,  H10K59/126 ,  H10K59/65 ,  H10K59/88

Abstract: A display device may include: a substrate including a display area which includes a first area and a second area and a non-display area; data lines located in the first area and the second area; readout lines located in the first area and the second area, the readout lines being spaced apart from the data lines; connection lines extending from the first area to the second area, the connection lines being electrically connected to corresponding readout lines disposed in the second area; and bridge lines extending from the second area to the first area, the bridge lines being electrically connected to corresponding data lines disposed in the first area. The connection lines and the bridge lines does not overlap with each other.

公开(公告)号：US20230351962A1

公开(公告)日：2023-11-02

申请号：US18107681

申请日：2023-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim SONG ,  Hee Jean PARK ,  Cheol Gon LEE

IPC: G09G3/3233 ,  H10K59/60 ,  H10K59/126 ,  H10K59/131 ,  G06V40/13

CPC classification number: G09G3/3233 ,  H10K59/60 ,  H10K59/126 ,  H10K59/131 ,  G06V40/1318 ,  G09G2360/14

Abstract: A display includes a light emitting element that emits light, a driving transistor that controls a driving current flowing through the light emitting element, a light sensing element spaced apart from the light emitting element and generating a photocurrent according to external light, a first sensing transistor that controls a sensing current flowing to a readout line according to a voltage of a gate electrode of the first sensing transistor, which is electrically connected to an electrode of the light sensing element, and a shielding electrode disposed around a side of the gate electrode of the first sensing transistor in plan view.