公开(公告)号：US11295673B2

公开(公告)日：2022-04-05

申请号：US17070438

申请日：2020-10-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Bon Yong Koo ,  Byung Chang Yu ,  Yu Jin Lee ,  Kyung Hoon Chung

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, a timing controller which generates an emission start signal, an emission driver which supplies an emission control signal to the plurality of pixels based on the emission start signal received from the timing controller, a first scan driver which supplies a first scan signal to the plurality of pixels, a second scan driver which supplies a second scan signal to the plurality of pixels, and a data driver which supplies a data signal to the plurality of pixels. The timing controller adjusts a period in which the emission start signal is supplied based on a change of a driving frequency.

公开(公告)号：US11205380B2

公开(公告)日：2021-12-21

申请号：US16852630

申请日：2020-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Bon Yong Koo ,  Yu Jin Lee ,  Kyung Hoon Chung ,  Chong Chul Chai

IPC: G09G3/325 ,  G09G3/36 ,  G09G3/3291

Abstract: A pixel including: a light-emitting element; a first transistor including a first electrode coupled to a power source and a second electrode coupled to the light-emitting element; a first capacitor between a second and a third node; a second transistor between the third node and a data line and turned on by a scan signal; a third transistor between a first node and the second node and turned on by a first control signal; a fourth transistor between the power source and the third node and turned on by a second control signal; a fifth transistor between the power source and the first electrode of the first transistor and turned on by an emission control signal; a sixth transistor between the second node and the light-emitting element and turned on by a previous emission control signal; and a second capacitor between the power source and the first node.

公开(公告)号：US20210280659A1

公开(公告)日：2021-09-09

申请号：US17139676

申请日：2020-12-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Hyeong Seok Kim ,  Young Wan Seo ,  Yu Jin Lee ,  Cheol Gon Lee

IPC: H01L27/32 ,  G09G3/3233 ,  H01L27/12

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：US11114033B2

公开(公告)日：2021-09-07

申请号：US16855038

申请日：2020-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Bon Yong Koo ,  Yu Jin Lee ,  Kyung Hoon Chung ,  Chong Chul Chai

IPC: G09G3/325 ,  G09G3/36 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel including: a light emitter; a first transistor including first and second electrodes respectively connected to power and the light emitter, the first transistor controlling driving current; a first capacitor between a second and third node; a second transistor between the third node and data line and turned on by a scan signal; a third transistor between a first and second node, and turned on by a control signal; a fourth transistor between power and the third node, and turned on by a emission control signal; a fifth transistor between power and the first electrode, and turned on by the emission control signal; a sixth transistor between the second node and the light emitter, and turned on by another emission control signal; and a second capacitor between power and the first node, wherein the fourth, fifth and sixth transistors turn-on/off at least four times in a non-emission period.