公开(公告)号：US20190081261A1

公开(公告)日：2019-03-14

申请号：US15895722

申请日：2018-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Seung-Jun LEE ,  Geunjeong PARK ,  Hui NAM ,  Myungho LEE

IPC: H01L51/50 ,  H01L27/32 ,  H01L27/15 ,  H01L33/08 ,  G09G3/3233 ,  C09K11/08 ,  B82Y40/00 ,  B82Y20/00

Abstract: A quantum-nano light emitting diode (Q-NED) pixel includes a switching transistor configured to transfer a data voltage in response to a scan signal, a storage capacitor configured to store the data voltage transferred by the switching transistor, a driving transistor coupled to a first power supply voltage line, and configured to generate a driving current based on the data voltage stored in the storage capacitor, a plurality of Q-NEDs configured to emit light based on the driving current, the Q-NEDs having an ohmic contact resistance at anodes and cathodes of the Q-NEDs, a first sensing transistor configured to couple the Q-NEDs to a sensing line in response to a sensing signal when a sensing operation for sensing the ohmic contact resistance of the Q-NEDs is performed, and a second sensing transistor configured to decouple the Q-NEDs from a second power supply line in response to an inverted sensing signal.

公开(公告)号：US20190206320A1

公开(公告)日：2019-07-04

申请号：US16238123

申请日：2019-01-02

Applicant: Samsung Display Co., Ltd.

Inventor： Hui NAM ,  Myungho LEE

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/32

Abstract: A pixel of an organic light emitting display device and an organic light emitting display device having the same includes an organic light emitting diode, a first switching transistor configured to transfer a data signal, a storage capacitor configured to store the data signal, a driving transistor configured to generate a driving current of the organic light emitting diode, a first initialization transistor and a second initialization transistor configured to simultaneously provide an initialization signal to the organic light emitting diode and the driving transistor, a second switching transistor configured to be turned on in response to a second scan signal and transfer the data signal or the initialization signal, a first emission control transistor configured to transfer a high power voltage to the driving transistor, and a second emission control transistor configured to transfer the driving current to the organic light emitting diode.

公开(公告)号：US20190164467A1

公开(公告)日：2019-05-30

申请号：US16186311

申请日：2018-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan SEO ,  Myungho LEE

IPC: G09G3/20 ,  G09G3/36 ,  G09G3/3266 ,  G09G3/3275

Abstract: A gate driver includes a plurality of stages, a memory and a selector. The plurality of stages provides a plurality of gate signals to a plurality of gate lines. The memory receives a gate input signal applied to at least one of the stages and outputs the gate input signal as a selection signal. The selector outputs a vertical start signal to a scan start point among the stages based on the selection signal.

公开(公告)号：US20170140737A1

公开(公告)日：2017-05-18

申请号：US15207522

申请日：2016-07-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sungyeon CHO ,  Taejin KIM ,  Hui NAM ,  Myungho LEE

IPC: G09G5/37 ,  G06F1/16

CPC classification number: G09G5/37 ,  G06F1/1652 ,  G09G3/001 ,  G09G2300/0413 ,  G09G2320/029 ,  G09G2340/0407 ,  G09G2340/0464 ,  G09G2340/14 ,  G09G2360/144 ,  G09G2360/145 ,  G09G2380/02

Abstract: A display device includes a housing, a flexible display panel, a light receiving sensor, and an area calculator. The flexible display panel is coupled to the housing and displays a reference image and an output image. The flexible display panel has an exposed area with a size that varies with movement of the flexible display panel in a first direction relative to the housing. The sensor senses the reference image and generates sensing data based on the reference image. The area calculator calculates the exposed area of the flexible display panel based on the sensing data.