公开(公告)号：US20240296763A1

公开(公告)日：2024-09-05

申请号：US18469768

申请日：2023-09-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Tae Hyeon YANG ,  Jun Young KO ,  Han Su CHO ,  Tae Joon KIM ,  Jae Woo CHOI

IPC: G09G3/00 ,  G06F3/041 ,  G06F3/044 ,  G09G3/3233

CPC classification number: G09G3/006 ,  G06F3/0412 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/0446 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2330/12

Abstract: A display device includes a touch panel and a display panel. The touch panel outputs touch sensing signals. At least one of a plurality of touch sensing signals is converted from a time domain to a frequency domain, and then information on a thickness of a common electrode is detected based on a peak of the converted touch sensing signal. As a result, it is possible to inspect whether the common electrode is formed with a uniform thickness without destroying the display device.

公开(公告)号：US20230229248A1

公开(公告)日：2023-07-20

申请号：US18086010

申请日：2022-12-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Bae KIM ,  Sang Kook KIM ,  Tae Joon KIM

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0446

Abstract: A display device includes a substrate. A plurality of sensing electrodes is on the substrate. A first touch insulating layer is disposed above the plurality of sensing electrodes. A plurality of driving electrodes is disposed on an upper surface of the first touch insulating layer. The plurality of driving electrodes receives a touch driving signal. A touch driving circuit sensing a change amount of mutual capacitance is formed between the plurality of driving electrodes and the plurality of sensing electrodes by the plurality of sensing electrodes. The first touch insulating layer includes an organic material.

公开(公告)号：US20200074913A1

公开(公告)日：2020-03-05

申请号：US16449049

申请日：2019-06-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Woo CHOI ,  Tae Joon KIM ,  Eun Sol SEO ,  Hyun Wook CHO

IPC: G09G3/20 ,  G06F3/044 ,  G06F3/041 ,  H04M1/725 ,  H04M1/02 ,  H04W52/02

Abstract: A display device is described including a display panel for displaying an image and an input sensing unit disposed on the display panel for sensing a user input. The input sensing unit includes: an electrode unit including first electrodes and second electrodes which intersect each other and a control unit for determining the proximity of an object or the shape of the object, based on capacitance change values of the first electrodes and the second electrodes. In a first mode the input sensing unit is driven using a self-capacitance method. The control unit may merge the capacitance change values, and determine the proximity of the object based on the merged value. In a second mode based on mutual capacitance, the control unit may determine the shape of the object.

公开(公告)号：US20240251607A1

公开(公告)日：2024-07-25

申请号：US18628242

申请日：2024-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Byoung Kwon CHOO ,  Seung Bae KANG ,  Bong Gu KANG ,  Tae Joon KIM ,  Jeong Min PARK ,  Joon-Hwa BAE ,  Hee Sung YANG ,  Woo Jin CHO

IPC: H10K59/123 ,  H10K50/84 ,  H10K50/86 ,  H10K59/12 ,  H10K59/38 ,  H10K59/40 ,  H10K71/00

CPC classification number: H10K59/123 ,  H10K50/84 ,  H10K50/865 ,  H10K59/38 ,  H10K59/40 ,  H10K71/00 ,  H10K59/1201

Abstract: A display device according to an embodiment includes: a substrate; a transistor that is disposed on the substrate; a light emitting diode that is disposed on the substrate, and connected to the transistor; and a passivation layer that is disposed between the transistor and the light emitting diode, wherein a surface step of the passivation layer is within a range of and including 1 nm to 30 nm.

公开(公告)号：US20240241600A1

公开(公告)日：2024-07-18

申请号：US18239225

申请日：2023-08-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung Rok LEE ,  Jin Woo PARK ,  Tae Joon KIM ,  Jung Mok PARK ,  II Ho LEE

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/0412

Abstract: A touch test device for a display device, includes a loading unit receiving a display device. The display device includes a touch sensing unit having driving electrodes and sensing electrodes. A touch driving circuit driving the driving electrodes and the sensing electrodes and detecting touch signal data for the driving electrodes, sensing signal data for the sensing electrodes, and touch data of touch nodes positioned at intersections between the driving electrodes and the sensing electrodes. A test processing circuit calculates parameter values inversely proportional to resistance deviations of the driving electrodes and the sensing electrodes, performs an arithmetic operation on the parameter values and the touch data of the touch nodes to provide corrected touch data, and detects defects in the driving electrodes and the sensing electrodes according to a result of comparing and analyzing the corrected touch data.

公开(公告)号：US20230359303A1

公开(公告)日：2023-11-09

申请号：US18174523

申请日：2023-02-24

Applicant: Samsung Display Co., LTD.

Inventor： Jin Woo PARK ,  Min Hong KIM ,  Tae Joon KIM ,  Il Ho LEE ,  Wan Kee JUN

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3266

CPC classification number: G06F3/04166 ,  G06F3/0412 ,  G06F3/0446 ,  G09G3/3266 ,  G09G2310/0267

Abstract: A touch detection module, includes: a plurality of driving electrodes arranged side by side; a plurality of sensing electrodes staggered with respect to the driving electrodes; and a touch driving circuit configured to supply touch driving signals to the plurality of driving electrodes and to detect touch detection signals through the plurality of sensing electrodes to identify touch position coordinates, wherein the touch driving circuit is configured: to vary frequency modulation parameter set values in response to a change in a frequency of reference clocks, and to generate and supply a frequency of the touch driving signals by using the reference clocks and a varied frequency modulation parameter set value.

公开(公告)号：US20230092537A1

公开(公告)日：2023-03-23

申请号：US17831330

申请日：2022-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jun Young KO ,  Tae Joon KIM ,  Eun Sol SEO ,  Yu Jin SIN ,  Jun Seong LEE ,  Jae Woo CHOI

IPC: G09G3/00 ,  G06F3/041 ,  G09G3/3233

Abstract: A method for inspecting a display device (which includes a pixel electrode and a touch sensor overlapping the pixel electrode) includes: adjusting an impedance value of a variable impedance circuit of an inspection apparatus according to a model of the display device; driving a power source generator of the inspection apparatus; supplying a pixel voltage to the pixel electrode through an output terminal connected to the variable impedance circuit; driving the touch sensor; and detecting a defect related to the pixel electrode based on sensing signals output from the touch sensor.

公开(公告)号：US20210117047A1

公开(公告)日：2021-04-22

申请号：US16931387

申请日：2020-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook CHO ,  Ye Rin OH ,  Min Hong KIM ,  Tae Joon KIM ,  Hyun Jae LEE

IPC: G06F3/044

Abstract: A touch sensor for a display device includes: a base layer including first and second sensing regions adjacent to each other in a first direction and a non-sensing region surrounding at least one side of each of the first and second sensing regions; first sensors disposed in each of the first and second sensing regions, the first sensors being arranged along a second direction intersecting the first direction, the first sensors being electrically connected to each other along the second direction; second sensors disposed in each of the first and second sensing regions, the second sensors being arranged along the first direction, the second sensors being electrically connected to each other along the first direction; and at least one third sensor located in the first sensing region and the second sensing region, wherein the at least one third sensor includes first and second sub-sensors electrically separated at a boundary between the first sensing region and the second sensing region, and the first and second sub-sensors have substantially the same size.

公开(公告)号：US20200159384A1

公开(公告)日：2020-05-21

申请号：US16583172

申请日：2019-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook CHO ,  Tae Joon KIM ,  Eun Sol SEO ,  Eung Kwan LEE ,  Jae Woo CHOI

IPC: G06F3/041

Abstract: An input sensing unit may include the following elements: a first sensing electrode including first sensors and a first connector coupling the first sensors; a second sensing electrode including second sensors and a second connector coupling the second sensors; a first sensing line including first sensing line parts and a third connector coupling the first sensing line parts; a second sensing line; and an insulating layer including a first insulating side and a second insulating side opposite the first insulating side. The first sensing line parts may overlap the first sensors and may be disposed on the first insulating side. The second sensing line may overlap the second sensors and may be disposed on the first insulating side. The first sensors may be disposed on the second insulating side. The second sensors may be disposed on the second insulating side.

公开(公告)号：US20240065047A1

公开(公告)日：2024-02-22

申请号：US18451188

申请日：2023-08-17

Applicant: Samsung Display Co., LTD.

Inventor： Eui Suk JUNG ,  Tae Joon KIM ,  Dong Hyun YANG ,  WONSEON YU ,  Hyeon Bum LEE

IPC: H10K59/126 ,  H10K59/122 ,  H10K59/38 ,  H10K59/35

CPC classification number: H10K59/126 ,  H10K59/122 ,  H10K59/38 ,  H10K59/352

Abstract: According to embodiments, a light emitting display device and a vehicle including the light emitting display device include a light emitting diode disposed on a substrate and including a light emitting layer; a pixel defining layer having an opening corresponding to the light emitting layer; light blocking linear patterns disposed on the pixel defining layer and the light emitting layer and extending in a first direction; a color converting layer disposed between the light blocking linear patterns; and an upper transparent organic layer disposed between the light blocking linear patterns and disposed on the color converting layer.