公开(公告)号：US11462176B2

公开(公告)日：2022-10-04

申请号：US17130941

申请日：2020-12-22

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Wenhao Qiao

IPC: G06F3/00 ,  G09G3/3275 ,  G09G3/3225 ,  G09G3/20

Abstract: Embodiments relate to a display device including bonding pads on a display element where data signals for a plurality of columns of pixels are provided to a same bonding pad in a time-divisional manner. Each of the bonding pads is connected to a plurality of demultiplexer circuits for sampling data signals at the bonding pad, storing the data signals, and transferring the sample data signals to corresponding columns of pixels. Each column of pixels includes a plurality of columns of subpixels, and a period during which a demultiplexer circuit samples the bonding pad for a column of subpixels of a first color may at least partially overlap with a period during which the demultiplexer circuit transfers previously sampled data signals to a column of subpixels of a second color.

公开(公告)号：US20230011187A1

公开(公告)日：2023-01-12

申请号：US17371892

申请日：2021-07-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Wenhao Qiao ,  Donghee Nam ,  Alexander Klement ,  Min Hyuk Choi

IPC: G09G3/3258 ,  G09G3/3291 ,  G02B27/01

Abstract: Embodiments relate to a display device including two or more sections of pixels in a display area powered by supply voltages in power rails. The display device also includes two or more power detection circuits connected to two or more locations along the power rails to detect local voltages at the locations. Depending on an image being display during a frame, the two or more sections of pixels may cause changes in local voltages at the two or more locations. The detected local voltages are provided to two or more voltage regulators, and the two or more voltage regulators update supply voltages provided to the power rails to compensate for the changes in the local voltages.

公开(公告)号：US11475849B1

公开(公告)日：2022-10-18

申请号：US17319015

申请日：2021-05-12

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Wenhao Qiao ,  Cheonhong Kim ,  Min Hyuk Choi

IPC: G09G5/00 ,  G09G3/3291

Abstract: Embodiments relate to a display device with reduced scanning time by using a reference line separate from a data line to improve frame rate of the display device. A first pixel in a first row samples a reference voltage during a first period and samples a data voltage during a second period. A second pixel in a second row adjacent to the first row samples the reference voltage during a third period and samples the data voltage during a fourth period, where the third period overlaps with at least a portion of the second period. The reference voltage is provided by the reference line that is connected to a reference buffer, and the data voltage is provided by the data line connected to a source driver circuit.

公开(公告)号：US11741898B1

公开(公告)日：2023-08-29

申请号：US17738830

申请日：2022-05-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Alexander Klement ,  Aaron Jacob Steyskal ,  Donghee Nam ,  Wenhao Qiao ,  Wonjae Choi

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/00

CPC classification number: G09G3/3233 ,  G09G3/002 ,  G09G2320/0693 ,  G09G2330/021

Abstract: A power supply unit adapts based on an image to be displayed by a display panel. The power supply unit includes a controller circuit for generating a power control signal, and a power supply circuit for generating one or more power supply voltages having a waveform based the power control signal. The controller circuit receives a set of configuration parameters from a display device and generates the power control signal based on the set of configuration parameters. The configuration parameters are stored in a look-up table of the display device.