公开(公告)号：US11715416B1

公开(公告)日：2023-08-01

申请号：US17976871

申请日：2022-10-31

申请人： Innolux Corporation

发明人： Hirofumi Watsuda ,  Tzu-Min Yan ,  Tsau-Hua Hsieh

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G2300/08 ,  G09G2310/0272 ,  G09G2310/061

摘要： A method for driving an active-matrix pixel array is provided. The method includes the following steps: during a first period, inputting a data signal into a control terminal of a second transistor of the each of pixel circuits from a first terminal of a first transistor of the each of the pixel circuits; during a second period, turning-on a third transistor of the each of the pixel circuits, so that a current generated by according to the data signal flows through the light emitting unit of the each of the pixel circuits; and during a third period, inputting a reset signal into the control terminal of the second transistor of the each of the pixel circuits from the first terminal of the first transistor of the each of the pixel circuits.

公开(公告)号：US20220076619A1

公开(公告)日：2022-03-10

申请号：US17529289

申请日：2021-11-18

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32 ,  G09G3/20

摘要： A display device includes a plurality of pixels. One of the pixels includes a light emitting diode and a driving circuit coupled to the light emitting diode. A display frame period includes at least two emission periods. The light emitting diode emits light according to a data signal including a gray level in each of the at least two emission periods.

公开(公告)号：US10803789B1

公开(公告)日：2020-10-13

申请号：US16439686

申请日：2019-06-12

申请人： InnoLux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G06F1/00 ,  G09G3/32 ,  H01L27/12 ,  G09G3/20 ,  G09G3/3225

摘要： A light-emitting device is used to emit light in a frame. The frame is split into a first field and a second field. The light-emitting device includes a scan line extending in a row direction; a first data line and a second data line extending in a column direction; a first pixel circuit coupled to the scan line and the first data line; a second pixel circuit coupled to the scan line and the second data line; a first light-emitting diode (LED) and a second LED driven by the first pixel circuit; and a third LED and a fourth LED driven by the second pixel circuit. The first LED and the fourth LED are arranged in different rows and driven in the first field, and the second LED and the third LED are arranged indifferent rows and driven in the second field.

公开(公告)号：US20240312399A1

公开(公告)日：2024-09-19

申请号：US18674909

申请日：2024-05-26

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G2300/0426 ,  G09G2300/0452

摘要： A display device is provided. The display device includes a first pixel, a first emission signal line and a second emission signal line. The first pixel includes a blue sub-pixel, a green sub-pixel and a red sub-pixel. The blue sub-pixel includes a first emission control switch. The green sub-pixel includes a second emission control switch. The red sub-pixel includes a third emission control switch. The first emission signal line is electrically connected to the first emission control switch and the second emission control switch. The second emission signal line is electrically connected to the third emission control switch.

公开(公告)号：US12039921B1

公开(公告)日：2024-07-16

申请号：US18177774

申请日：2023-03-03

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32

CPC分类号： G09G3/32 ,  G09G2300/0426 ,  G09G2300/0452

摘要： A display device is provided. The display device includes a first pixel, a first emission signal line and a second emission signal line. The first pixel includes a blue sub-pixel, a green sub-pixel and a red sub-pixel. The blue sub-pixel includes a first emission control switch. The green sub-pixel includes a second emission control switch. The red sub-pixel includes a third emission control switch. The first emission signal line is electrically connected to the first emission control switch and the second emission control switch. The second emission signal line is electrically connected to the third emission control switch.

公开(公告)号：US20230027951A1

公开(公告)日：2023-01-26

申请号：US17375004

申请日：2021-07-14

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32 ,  G09G3/20

摘要： A light emitting device and a light emitting method are provided. The light emitting device includes a plurality of sub-pixels. Each of the sub-pixels displays a grayscale during a frame. The frame includes N sub-frames. Each of the sub-frames include a scan period and an emission period. Each of the sub-pixels include a pixel circuit and a light emitter. The pixel circuit include a current control circuit and a pulse width modulation (PWM) circuit. The current control circuit receives an analog signal, and outputs a driving current according to the analog signal. The PWM circuit receives M digital signals and M reference pulse signals, and outputs a PWM pulse according to the M digital signals and the M reference pulse signals. The light emitter receives the driving current and the PWM pulse during emission period of each of the N sub-frames.

公开(公告)号：US20220093035A1

公开(公告)日：2022-03-24

申请号：US17027711

申请日：2020-09-22

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32 ,  G09G3/20

摘要： A display device including a pixel circuit is provided. The pixel circuit includes a first sub-pixel circuit and a second sub-pixel circuit. The first sub-pixel circuit includes a first driving transistor, a second driving transistor and a first light-emitting unit. The first light-emitting unit is electrically connected to the first driving transistor and the second driving transistor. The second sub-pixel circuit includes a third driving transistor and a second light-emitting unit. The second light-emitting unit is electrically connected to the third driving transistor. A voltage level of a first gate terminal of first driving transistor of the first sub-pixel circuit is associated with a voltage level of a second gate terminal of the third driving transistor of the second sub-pixel circuit.

公开(公告)号：US11005475B1

公开(公告)日：2021-05-11

申请号：US16734496

申请日：2020-01-06

申请人： InnoLux Corporation

发明人： Kazuyuki Hashimoto ,  Hirofumi Watsuda ,  Hidetoshi Watanabe

IPC分类号： H03K19/01 ,  H03K17/76 ,  H03K19/094 ,  H03K19/0185

摘要： An emission driver includes a latch circuit and a buffer circuit. The latch circuit receives a first signal, a second signal, and a first clock signal. The latch circuit includes a first output terminal and a second output terminal. The first output terminal of the latch circuit outputs a third signal according to the first clock signal. The second output terminal of the latch circuit outputs a fourth signal in reverse to the third signal according to the first clock signal. The buffer circuit includes a first input terminal, a second input terminal and a third output terminal. The first input terminal of the buffer circuit receives the third signal. The second input terminal of the buffer circuit receives the fourth signal. The third output terminal of the buffer circuit outputs an emission signal according to the third signal and the fourth signal.

公开(公告)号：US11682341B2

公开(公告)日：2023-06-20

申请号：US17375004

申请日：2021-07-14

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G09G3/32 ,  G09G3/20

CPC分类号： G09G3/32 ,  G09G3/2074 ,  G09G2300/0814 ,  G09G2310/027

摘要： A light emitting device and a light emitting method are provided. The light emitting device includes a plurality of sub-pixels. Each of the sub-pixels displays a grayscale during a frame. The frame includes N sub-frames. Each of the sub-frames include a scan period and an emission period. Each of the sub-pixels include a pixel circuit and a light emitter. The pixel circuit include a current control circuit and a pulse width modulation (PWM) circuit. The current control circuit receives an analog signal, and outputs a driving current according to the analog signal. The PWM circuit receives M digital signals and M reference pulse signals, and outputs a PWM pulse according to the M digital signals and the M reference pulse signals. The light emitter receives the driving current and the PWM pulse during emission period of each of the N sub-frames.

公开(公告)号：US20220301103A1

公开(公告)日：2022-09-22

申请号：US17206134

申请日：2021-03-19

申请人： Innolux Corporation

发明人： Hirofumi Watsuda

IPC分类号： G06T3/40 ,  G06T7/90

摘要： A driving method adapted to drive a first pixel of a display device to display an image in a frame time is provided. The driving method includes dividing the frame time into a first sub-frame time and a second sub-frame time; providing a first data with a first gray level; and controlling the first pixel to be emitted in the first sub-frame time or in the second sub-frame time according to the first data. When the first gray level is greater than a predetermined gray level, controlling the first pixel to be emitted in the first sub-frame time, and when the first gray level is less than or equal to the predetermined current level, controlling the first pixel to be emitted in the second sub-frame time.