公开(公告)号：US11929032B2

公开(公告)日：2024-03-12

申请号：US17887973

申请日：2022-08-15

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Dae Lee ,  Il Nam Kim ,  Seung Hyun Moon ,  Dong Wook Yang ,  Kang Bin Jo ,  Go Eun Cha

IPC: G06V40/13 ,  G09G3/3266

CPC classification number: G09G3/3266 ,  G06V40/1318 ,  G09G2300/0828 ,  G09G2310/0294 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device comprises a display panel which comprises scan lines, sensing lines, pixels electrically connected to each of the scan lines, and photo sensors electrically to each of the scan lines and the sensing lines, a scan driver which outputs scan signals to the scan lines according to a scan control signal, a timing controller which outputs the scan control signal to the scan driver, and a readout circuit which receives light sensing signals of the photo sensors from the sensing lines. The timing controller sets a frame frequency of the scan control signal to a first frame frequency in a first mode in which the display panel displays an image. The timing controller sets the frame frequency of the scan control signal to a second frame frequency in a second mode in which the photo sensors sense a fingerprint.

公开(公告)号：US11783620B2

公开(公告)日：2023-10-10

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: G09G3/3233 ,  G06V40/13 ,  G09G3/3208

CPC classification number: G06V40/1318 ,  G09G3/3208 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08

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：US11741739B2

公开(公告)日：2023-08-29

申请号：US16589416

申请日：2019-10-01

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Jin Sung ,  Ji Hun Ryu ,  Yun Ho Kim ,  Il Nam Kim ,  Won Sang Park ,  Jong In Baek ,  Katsumasa Yoshii

IPC: G06V40/13 ,  H01L31/12 ,  H01L27/146 ,  G09G3/3233 ,  H10K59/40 ,  H10K59/60 ,  H10K59/65 ,  H10K59/121

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  H01L27/14605 ,  H01L31/12 ,  H10K59/1216 ,  H10K59/40 ,  H10K59/60 ,  H10K59/65 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2354/00

Abstract: A display device may include: a first substrate including pixel areas; a circuit element layer disposed on a first surface of the first substrate, and including at least one conductive layer; a light emitting element layer disposed on the circuit element layer; pixels each including a circuit element and a light emitting element disposed on the circuit element layer and the light emitting element layer in a corresponding one of the pixel areas; a first light transmitting hole array layer including first light transmitting holes distributed in the circuit element layer; and a photo sensor array layer disposed on a second surface of the first substrate and configured to overlap with the first light transmitting hole array layer, the photo sensor array layer comprising photo sensors. The first light transmitting holes may include openings distributed in the at least one conductive layer.

公开(公告)号：US11690263B2

公开(公告)日：2023-06-27

申请号：US17028915

申请日：2020-09-22

Applicant: Samsung Display Co., LTD.

Inventor： Ji Hun Ryu ,  Il Nam Kim ,  Won Sang Park ,  Eun Jin Sung ,  Seong Ryong Lee ,  Jong Hyun Lee

IPC: H10K59/131 ,  H04M1/02 ,  H10K50/86 ,  H10K59/60

CPC classification number: H10K59/131 ,  H04M1/0266 ,  H04M1/0268 ,  H10K50/865 ,  H10K59/60

Abstract: A display device including a substrate; a display element layer on the substrate, the display element layer including light emitting devices; a circuit element layer between the substrate and the display element layer, the circuit element layer including signal lines and light transmitting areas which are located between the signal lines in a plan view and allow light to be transmitted therethrough; a first light blocking layer between the substrate and the circuit element layer, the first light blocking layer including first openings; and a second light blocking layer on the first light blocking layer, the second light blocking layer including second openings. The second light blocking layer includes second sub-light blocking layers disposed to be spaced apart from each other, the second sub-light blocking layers each having the second openings. The first openings of the first light blocking layer overlaps with an area between the second sub-light blocking layers.

公开(公告)号：US11170090B2

公开(公告)日：2021-11-09

申请号：US16997871

申请日：2020-08-19

Applicant: Samsung Display Co., LTD.

Inventor： Won Sang Park ,  Jin Oh Kwag ,  Il Nam Kim ,  Ji Hun Ryu ,  Seung Hyun Moon ,  Bong Hyun You ,  Jong Hyun Lee ,  Hee Chul Hwang

IPC: G06F21/32 ,  G06F3/042 ,  G06K9/00

Abstract: A display device includes a fingerprint sensor including a first layer having at least one photo sensor to generate a fingerprint image corresponding to reflected light from a fingerprint contact surface, light emitting elements to transmit light reflected by the fingerprint, and a second layer including pin holes to allow reflected light to be incident upon the at least one photo sensor; and fingerprint detector to receive the fingerprint image from the fingerprint sensor, to extract a first image corresponding to a first region of the fingerprint and a second image corresponding to a second region of the fingerprint, to compare the first and second images to determine similarity, and to perform fingerprint authentication, based on similarity determination, where the fingerprint first region is in contact with the fingerprint contact surface and the fingerprint second region is not in contact with the fingerprint contact surface.

公开(公告)号：US10572085B2

公开(公告)日：2020-02-25

申请号：US16004447

申请日：2018-06-11

Applicant: Samsung Display Co., Ltd.

Inventor： Keum Dong Jung ,  Ki Seo Kim ,  Il Nam Kim ,  Kyung Tea Park ,  Yun Ho Kim ,  Jae Kyoung Kim ,  Won Sang Park ,  Jong In Baek

IPC: G06F3/044 ,  G06K9/00 ,  G06F3/041

Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

公开(公告)号：US10096287B2

公开(公告)日：2018-10-09

申请号：US15157575

申请日：2016-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eun Jin Sung ,  Jong In Baek ,  Ji Young Moon ,  Il Nam Kim ,  Won Sang Park ,  Byeong Hee Won

IPC: G09G5/10 ,  G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, an illuminance sensor to measure illuminance, and a display controller which includes a processor a brightness controllers. The processor calculates an external illuminance value with reference to a signal from the illuminance sensor. The brightness controller turns off at least one of the pixels and controls the brightness of the display panel when the calculated external illuminance value is in a first region. The first region may be, for example, in a mesopic region.

公开(公告)号：US11922714B2

公开(公告)日：2024-03-05

申请号：US16931159

申请日：2020-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Hyun Lee ,  Ji Hun Ryu ,  Il Nam Kim ,  Jong In Baek ,  Eun Jin Sung

IPC: G06V40/13 ,  H10K50/84 ,  H10K59/12 ,  H10K59/65 ,  G02B5/20 ,  H01L27/146

CPC classification number: G06V40/1318 ,  H10K50/841 ,  H10K59/12 ,  H10K59/65 ,  G02B5/208 ,  H01L27/14623 ,  H01L27/14678

Abstract: Provided is a display device. The display device includes a display panel which includes a base substrate, a thin-film transistor layer on the base substrate, and a light emitting element layer comprising light emitting elements on the thin-film transistor layer; a cover window on the light emitting element layer of the display panel; and a fingerprint recognition sensor layer under the display panel. The base substrate includes a first base, a second base on the first base, and a light blocking layer between the first base and the second base, and the light blocking layer includes holes through which light reflected by a finger touching the cover window passes.

公开(公告)号：US11830282B2

公开(公告)日：2023-11-28

申请号：US18061520

申请日：2022-12-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Nam Kim ,  Won Sang Park

IPC: G06V40/13 ,  H01L27/146 ,  H01L25/18 ,  G06V10/147

CPC classification number: G06V40/1318 ,  G06V10/147 ,  H01L25/18 ,  H01L27/14605 ,  H01L27/14623

Abstract: A fingerprint sensor includes: a first layer including a plurality of pixels; a light transmitting hole array layer including a plurality of light transmitting holes providing light transmitting paths of light rays that are incident through the first layer; and a sensor layer including a plurality of photo sensors configured to sense the light rays that pass through the light transmitting holes and are incident on the sensor layer. A resolution at which the photo sensors are disposed in first areas on the sensor layer differs from a resolution at which the photo sensors are disposed in second areas on the sensor layer.

公开(公告)号：US11600096B2

公开(公告)日：2023-03-07

申请号：US16796341

申请日：2020-02-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soo Jung Lee ,  Keum Dong Jung ,  Yu Na Kim ,  Il Nam Kim

IPC: G06V40/13 ,  G06V10/75

Abstract: There are provided a fingerprint sensor and a display device including the same. The fingerprint sensor includes a base substrate in which a first sensing region and a second sensing region are defined on a plane, first photo sensors disposed on the first sensing region of the base substrate, and second photo sensors disposed on the second sensing region of the base substrate. The first sensing region has an area larger than that of the second sensing region, and the first photo sensor has a width wider than that of the second photo sensor.