公开(公告)号：US10515589B2

公开(公告)日：2019-12-24

申请号：US15685377

申请日：2017-08-24

申请人： LG Display Co., Ltd.

发明人： Hyuckjun Kim ,  Seokhyun Hong ,  Myunggi Lim

IPC分类号： G09G3/3241 ,  G09G3/3291 ,  H01L51/50 ,  H05B33/08 ,  G09G3/3233

摘要： The present invention provides an OLED display device including a display panel, a data driver and a timing controller. The display panel has sub-pixels for displaying images. The data driver supplies a data signal to data lines of the sub-pixels. The timing controller supplies the data signal to the data driver and controls the data driver. The data driver outputs a stress prevention voltage for preventing application of stress to driving transistors included in the sub-pixels in response to a stress compensation signal output from the timing controller, and the stress prevention voltage is applied to M (M being an integer equal to or greater than 1) sub-pixels selected per frame.

公开(公告)号：US10509939B2

公开(公告)日：2019-12-17

申请号：US15679233

申请日：2017-08-17

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Rui Xu ,  Haisheng Wang ,  Xiaoliang Ding ,  Yingming Liu ,  Shengji Yang

IPC分类号： G06K9/00 ,  G09G3/3241 ,  G09G3/20 ,  G09G3/3225

摘要： An optical signal modulation circuit is configured to provide an optical signal for a fingerprint recognition process. The optical signal modulation circuit includes a first modulation unit and a first control unit. The first modulation unit has a control terminal connected to a signal output terminal of a first control unit, a signal input terminal connected to a first modulation signal terminal, and a signal output terminal connected to a light emitting element.

公开(公告)号：US10453395B2

公开(公告)日：2019-10-22

申请号：US15992477

申请日：2018-05-30

申请人： JOLED INC.

发明人： Hiroshi Takahara ,  Hitoshi Tsuge

IPC分类号： G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G5/02 ,  H01L33/56 ,  H01L33/58 ,  H01L27/32 ,  H01L27/12 ,  H01L51/52 ,  G09G3/20 ,  H01L29/786 ,  H01L27/15

摘要： An electroluminescent (EL) display apparatus and method of controlling are provided. A display screen includes gate and source signal lines. A pixel corresponds to each intersection of the gate and source signal lines. Each pixel includes: an EL device including anode and cathode terminals, the cathode terminal being connected to a common reference voltage; a driving transistor to flow a current to the EL device; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device; a second switch transistor to supply, to the driving transistor, an image signal from one source signal line; and a third switch transistor provided between the anode terminal of the EL device and a voltage line. The voltage line is configured to supply a reverse bias voltage for reverse biasing the anode terminal of the EL device.

公开(公告)号：US20190237018A1

公开(公告)日：2019-08-01

申请号：US16155854

申请日：2018-10-09

申请人： Samsung Display Co., Ltd.

发明人： Ji Tae KIM ,  Kyoung Ju SHIN

IPC分类号： G09G3/3241 ,  G09G3/3266 ,  G09G3/3275

CPC分类号： G09G3/3241 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809 ,  G09G2310/08 ,  G09G2320/062 ,  G09G2320/064

摘要： A pixel includes an organic light emitting diode, a first transistor, a second transistor, and a third transistor. The first transistor includes a first electrode, a second electrode, and a gate electrode and may control a current applied to the organic light emitting diode from a first power source, wherein the gate electrode is electrically connected to a first node. The second transistor is electrically connected between the organic light emitting diode and the second electrode of the first transistor and may turn on in response to a first emission control signal. The third transistor is electrically connected between the first power source and the first electrode of the first transistor and may turn on in response to a second emission control signal. The second transistor may turn on two or more times during one frame. The third transistor may turn on exactly once in the one frame.

公开(公告)号：US20190206324A1

公开(公告)日：2019-07-04

申请号：US16223039

申请日：2018-12-17

申请人： LG Display Co., Ltd.

发明人： Taegung Kim ,  Kyung-Rok Kim ,  Juyoung Noh

IPC分类号： G09G3/3241 ,  G09G3/32

CPC分类号： G09G3/3241 ,  G09G3/32 ,  G09G2310/027 ,  G09G2310/061 ,  G09G2310/08

摘要： Disclosed is a light emitting display apparatus. The light emitting display apparatus includes a plurality of pixels provided in a display area of a substrate and connected to a data line, a clock line, and a pixel driving power line. The plurality of pixels each include a pixel driving chip connected to the data line, the clock line, and the pixel driving power line to sequentially output a driving current through a plurality of output terminals thereof and a plurality of light emitting devices respectively connected to the plurality of output terminals. Accordingly, a gate driving circuit and a gate line connected to the gate driving circuit are removed from one end of a display panel and omitted, thereby minimizing the number of pad parts disposed in the display panel.

公开(公告)号：US20190204954A1

公开(公告)日：2019-07-04

申请号：US16226278

申请日：2018-12-19

申请人： LG DISPLAY CO., LTD.

发明人： Taegung KIM ,  Kyung-Rok Kim

IPC分类号： G06F3/044 ,  G09G3/32 ,  G09G3/3241 ,  H01L27/32

CPC分类号： G06F3/044 ,  G09G3/32 ,  G09G3/3241 ,  H01L27/323 ,  H01L27/3258

摘要： Disclosed is a display apparatus which senses a user touch and has a simplified configuration. The display apparatus including a substrate including a display area includes a plurality of pixel areas and a non-display area surrounding the display area, a plurality of pixels including a pixel driving chip provided in each of the plurality of pixel areas of the substrate and a light emission part connected to the pixel driving chip, and a plurality of touch electrodes disposed in the display area to overlap two or more pixels. A first pixel driving chip of two or more pixel driving chips overlapping a corresponding touch electrode of the plurality of touch electrodes is connected to the corresponding touch electrode.

公开(公告)号：US10269297B2

公开(公告)日：2019-04-23

申请号：US15748956

申请日：2017-06-28

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Xiaochuan Chen ,  Shengji Yang ,  Can Zhang ,  Lei Wang

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/3258 ,  G09G3/3241 ,  G09G3/3291

摘要： A pixel circuit, a driving method of the pixel circuit, and a display panel, the pixel circuit includes a first sub-pixel circuit configured to write a first data voltage provided by the first data line under control of the first scan line, and generate a compensation voltage at the first node; at least one second sub-pixel circuit configured to perform threshold voltage compensation by the compensation voltage generated at the first node; the at least one second sub-pixel circuit is configured to write a second data voltage provided by the second data line under control of the second scan line based on a display mode.

公开(公告)号：US10235933B2

公开(公告)日：2019-03-19

申请号：US14490513

申请日：2014-09-18

申请人： Ignis Innovation Inc.

发明人： Arokia Nathan ,  Gholamreza Chaji ,  Stefan Alexander ,  Peyman Servati ,  Richard I-Heng Huang ,  Corbin Church

IPC分类号： G09G3/3233 ,  G09G3/3241

摘要： A display degradation compensation system and method for adjusting the operating conditions for pixels in an OLED display to compensate for non-uniformity or aging of the display. The system or method sets an initial value for at least one of peak luminance and an operating condition, calculates compensation values for the pixels in the display, determines the number of pixels having compensation values larger than a predetermined threshold compensation value, and if the determined number of pixels having compensation values larger than said predetermined threshold value is greater than a predetermined threshold number, adjusts the set value until said determined number of pixels is less than said predetermined threshold number.

公开(公告)号：US10224347B2

公开(公告)日：2019-03-05

申请号：US15496092

申请日：2017-04-25

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Hajime Kimura

IPC分类号： H01L27/12 ,  G09G3/3241 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/36

摘要： In case the size of the transistor is enlarged, power consumption of the transistor is increased. Thus, the present invention provides a display device capable of preventing a current from flowing to a display element in signal writing operation without varying potentials of power source lines for supplying a current to the display element per row. In setting a gate-source voltage of a transistor by applying a predetermined current to the transistor, a potential of a gate terminal of the transistor is adjusted so as to prevent a current from flowing to a load connected to a source terminal of the transistor. Therefore, a potential of a wire connected to the gate terminal of the transistor is differentiated from a potential of a wire connected to a drain terminal of the transistor.

公开(公告)号：US10209555B2

公开(公告)日：2019-02-19

申请号：US15628956

申请日：2017-06-21

申请人： Japan Display Inc.

发明人： Yuji Maede

IPC分类号： G02F1/1335 ,  G02B5/20 ,  G02F1/13 ,  G09G3/3241 ,  G02F1/1343 ,  G02F1/1362

摘要： According to one embodiment, a display device, including a first insulating, a first common electrode located on a side of the first insulating layer, a second common electrode being adjacent to the first common electrode, and a second insulating, wherein the first insulating layer is in contact with the second insulating layer at a position corresponding to the first boundary portion, the second common electrode is contact with any one of the first and second insulating layers at a position corresponding to the second boundary portion, and being in contact with both the first and second insulating layers at a position corresponding to the third boundary portion.