公开(公告)号：US11996028B2

公开(公告)日：2024-05-28

申请号：US17597948

申请日：2022-01-10

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Linfeng Liu

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3225

CPC classification number: G09G3/2081 ,  G09G3/2011 ,  G09G3/2022 ,  G09G3/32 ,  G09G3/3225 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/08

Abstract: A pixel circuit and a display panel are provided in the present application. The pixel circuit includes a driving module, a pulse amplitude modulation module, a pulse width modulation module, an internal compensation module, and an electrical potential maintaining module. High grayscale display is controlled by the pulse amplitude modulation module in a pulse amplitude modulation manner, low grayscale display is controlled by the pulse width modulation module in a pulse width modulation manner, and the internal compensation module performs internal compensation on a first terminal of the driving module, to realize an internal compensation and hybrid driving of the pixel circuit.

公开(公告)号：US11972718B2

公开(公告)日：2024-04-30

申请号：US18184987

申请日：2023-03-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazunori Matsuyama ,  Noriyuki Shikina

IPC: G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/2074 ,  G09G3/2022 ,  G09G3/2081 ,  G09G3/3225

Abstract: A display device displays an image in which each frame is formed by at least two subframes. The display device includes a drive unit configured to drive a plurality of pixels in a pixel array so as to drive pixels in at least two rows based on pixel data of each row of each supplied subframe data. The drive unit drives the plurality of pixels so as to cause pixels in a row not matching a row in the supplied current subframe data to emit light with a first condition, and cause pixels in a row matching the row in the current subframe data to emit light with a second condition. The second condition is a condition in which a light emission amount is larger than in the first condition when causing the pixels to emit light in accordance with identical pixel values.

公开(公告)号：US11899211B2

公开(公告)日：2024-02-13

申请号：US17357855

申请日：2021-06-24

Applicant: Microsoft Technology Licensing, LLC

Inventor： Raymond Kirk Price ,  Michael Bleyer ,  Christopher Douglas Edmonds

IPC: G02B27/01 ,  F21V8/00 ,  G09G3/02 ,  G09G3/34 ,  H01S5/042 ,  G09G3/20

CPC classification number: G02B27/0172 ,  G02B6/005 ,  G02B6/0023 ,  G09G3/02 ,  G09G3/2081 ,  G09G3/3413 ,  H01S5/0425 ,  H01S5/0428 ,  G02B2027/014 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/0178

Abstract: A near-eye display device comprises a pupil-expansion optic, a laser, a drive circuit coupled operatively to the first and second lasers, a spatial light modulator (SLM), and a computer. The SLM has a matrix of electronically controllable pixel elements and is configured to receive emission from the laser and to direct the emission in spatially modulated form to the pupil-expansion optic. Coupled operatively to the drive circuit and to the SLM, the computer is configured to parse a digital image, trigger the emission from the laser by causing the drive circuit to drive a periodic current through a gain structure of the laser, and control the matrix of pixel elements such that the spatially modulated form of the emission projects an optical image corresponding to the digital image, wherein the periodic current includes plural cycles of modulation driven through the gain structure while the optical image is projected.

公开(公告)号：US20180197477A1

公开(公告)日：2018-07-12

申请号：US15915403

申请日：2018-03-08

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： Rajesh Manohar DIGHDE ,  Ying ZHENG

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/2003 ,  G09G3/2074 ,  G09G3/2081 ,  G09G3/3233 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/04

Abstract: Sub-pixel compensation is described. In at least some implementations, a computing device includes a plurality of sub-pixels within a pixel which may generate an alternating display to approximate the display of a single sub-pixel. In other implementations, a voltage is applied to sub-pixels of a color such that a voltage across a first sub-pixel is proportional to a voltage across one or more additional sub-pixels. In other implementations, a change in a voltage drop across a sub-pixel is detected, and the change is compensated for by altering a voltage of a second sub-pixel within the pixel.

公开(公告)号：US10013932B2

公开(公告)日：2018-07-03

申请号：US15403893

申请日：2017-01-11

Applicant: Japan Display Inc.

Inventor： Yasuyuki Teranishi

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3607 ,  G09G3/207 ,  G09G3/2081 ,  G09G3/3648 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0857 ,  G09G2310/08

Abstract: A liquid crystal display device in which pixels having a memory function are arranged includes: a display drive unit performing display driving by a driving method for obtaining halftone gray scales by setting plural frames as one cycle and temporarily changing gray scales of respective pixels within one cycle; and a pixel drive unit supplying a voltage having the same phase as, or the reverse phase to, a common voltage the polarity of which is inverted in a given cycle and applied to counter electrodes of liquid crystal capacitors to pixel electrodes of the liquid crystal capacitors. The pixel drive unit supplies an intermediate voltage between high- and low-voltage sides of the common voltage to the pixel electrodes of the liquid crystal capacitors at the time of transition from the supply of the voltage having the same phase to the supply of the voltage having reverse phase.

公开(公告)号：US20180182279A1

公开(公告)日：2018-06-28

申请号：US15576233

申请日：2016-05-27

Applicant: Apple Inc.

Inventor： Kapil V. SAKARIYA ,  Tore NAUTA ,  Hopil BAE ,  Henry C. JEN

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2022 ,  G09G3/2014 ,  G09G3/2018 ,  G09G3/2081 ,  G09G3/32 ,  G09G2300/0804 ,  G09G2300/0857 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2310/0272 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0295

Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.

公开(公告)号：US20180144715A1

公开(公告)日：2018-05-24

申请号：US15581637

申请日：2017-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tetsuya SHIGETA ,  Do-young KWAG ,  Seong-phil CHO

IPC: G09G5/10 ,  G09G3/32 ,  G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/2081 ,  G09G3/32 ,  G09G2320/0613 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2320/0686 ,  G09G2340/06 ,  G09G2360/16

Abstract: A display apparatus and controlling method thereof are provided. The display apparatus includes a display including a plurality of light emitting components, a display driver that drives the display by applying a current to the plurality of light emitting components, a storage that stores current intensity information for each of a plurality of display modes providing different color gamuts, and a processor that acquires current intensity information corresponding to a present display mode, among the plurality of display modes, from the storage and controls the display driver to apply the current to the plurality of light emitting components based on the acquired current intensity information.

公开(公告)号：US09972251B2

公开(公告)日：2018-05-15

申请号：US15217143

申请日：2016-07-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Ho-Jin Ryu ,  Seong-Hyun Kim

IPC: G09G3/30 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3266 ,  G09G3/2081 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2310/0205 ,  G09G2310/0251 ,  G09G2320/045

Abstract: Disclosed is a method of driving an organic light emitting diode display that includes a first organic light emitting diode, and a first driving circuit to operate the first organic light emitting diode, the method includes supplying a first gate pulse and a second gate pulse to a first gate line connected to the first driving circuit, and supplying a first data signal and a first compensation signal to a data line connected to the first driving circuit.

公开(公告)号：US20180102092A1

公开(公告)日：2018-04-12

申请号：US15724383

申请日：2017-10-04

Applicant: Japan Display Inc.

Inventor： Masahiro KUBOTA ,  Norio NAKAMURA

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2003 ,  G09G3/2081 ,  G09G3/325 ,  G09G3/3266 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/064 ,  G09G2330/02

Abstract: A display apparatus includes: a display device including a plurality of pixels each including a light emitting element; and a controller configured to control light emission timing of each of the pixels. The controller is configured to divide a time period during which a frame image is being displayed into certain unit time segments, and then switch light emission of the pixel on and off in a manner such that a light quantity per each of the unit time segment is equalized.

公开(公告)号：US09928806B2

公开(公告)日：2018-03-27

申请号：US14733594

申请日：2015-06-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Takashi Toyooka

IPC: G09G3/36 ,  G09G5/10 ,  G09G3/20 ,  G09G5/18 ,  H04N5/74 ,  G09G3/34 ,  G09G3/00

CPC classification number: G09G5/10 ,  G09G3/002 ,  G09G3/2022 ,  G09G3/2081 ,  G09G3/3406 ,  G09G3/3648 ,  G09G5/18 ,  G09G2310/066 ,  G09G2320/0633 ,  H04N5/74

Abstract: An image display apparatus includes a light-source driving circuit that drives a light source to cyclically change brightness. A control unit controls a pixel to turn on and off over a plurality of subfields in a field so that transmittance or reflectance in the pixel over the plurality of subfields in the field corresponds to a gray level specified for the pixel. The control unit also arranges the plurality of subfields such that two or more gray-level defining subfields maintain a predetermined relationship with respect to the cyclical change in brightness of the light source caused by drive of a light-source driving circuit.