公开(公告)号：US20230317012A1

公开(公告)日：2023-10-05

申请号：US17709989

申请日：2022-03-31

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Qianqian Wang ,  Min Hyuk Choi ,  Gang Chen

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

CPC classification number: G09G3/3258 ,  G02B27/0172 ,  G09G3/3291 ,  G09G2300/0876 ,  G02B2027/0178 ,  G09G2310/0297

Abstract: Embodiments relate to a display device including pixels that compensate a threshold voltage of a driving transistor using the body effect. Pixel data for the driving transistor increases the source-bulk voltage of the driving transistor during a compensation period as a result of the body effect. A separate reference voltage is not received at the pixel for the purpose of compensating the threshold voltage of the driving transistor. The increased source-bulk voltage is then used in an emission period of the pixel to compensate for the threshold voltage of the driving transistor.

公开(公告)号：US20230317006A1

公开(公告)日：2023-10-05

申请号：US18122619

申请日：2023-03-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Gyungmin Kim ,  Min Hyuk Choi ,  Takanori Shibasaki

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2330/028 ,  G09G2320/045

Abstract: Embodiments relate to a display device including pixels that compensate a threshold voltage of a driving transistor, the pixels arranged in a plurality of rows. The gate of the driving transistor of each pixel is coupled to a pixel data switch and a reference voltage switch, configured to selectively provide pixel data provided via a data line and a reference voltage provided via a separate reference voltage line to the gate of the driving transistor, respectively. As pixel data and the reference voltage are provided to the driving transistor via separate lines, the compensation period of the pixel may overlap in time with a data writing period of pixels of a previous row of the display device, increasing the rate at which the display device is able to program the pixels of each row.

公开(公告)号：US11513573B2

公开(公告)日：2022-11-29

申请号：US17093423

申请日：2020-11-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Zhiming Zhuang ,  Kyung Won Park

IPC: G06F1/20 ,  H01L51/52 ,  H05K7/20 ,  G02B27/01

Abstract: A system includes a display panel, a temperature sensor configured to measure a temperature of the display panel, a thermoelectric device coupled to the display panel and configured to transfer heat to or from the display panel, and a controller electrically coupled to the temperature sensor and the thermoelectric device. The controller is configured to receive the measured temperature of the display panel and, based on the measured temperature of the display panel, send a second signal to the thermoelectric device to cause the thermoelectric device to remove a first quantity of heat from the display panel or send a third signal to the thermoelectric device to cause the thermoelectric device to provide a second quantity of heat to the display panel.

公开(公告)号：US12051384B2

公开(公告)日：2024-07-30

申请号：US18115938

申请日：2023-03-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Gyungmin Kim ,  Min Hyuk Choi ,  Takanori Shibasaki ,  Qianqian Wang

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2300/0452 ,  G09G2330/021 ,  G09G2380/00

Abstract: A display may be foveated to reduce power consumption and increase row scan timing margin. In one embodiment, the display includes pixels, where a first set of the pixels are formed to have a low resolution and a second set of the pixels are formed to have a high resolution. A first subset of the first set of pixels is formed in a first pixel cell layout and includes anodes formed in a first anode layout. A second subset of the second set of pixels is formed in a second pixel layout and includes anodes formed in a second anode layout. In another embodiment, the display similarly includes pixels formed to have a low resolution or a high resolution. The pixels of this embodiment may be formed in the same anode layout.

公开(公告)号：US11682663B2

公开(公告)日：2023-06-20

申请号：US17098494

申请日：2020-11-16

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Young Bae Kim ,  Donghee Nam ,  Min Hyuk Choi ,  Zhiming Zhuang

IPC: H01L25/18 ,  G09G3/3275 ,  H01L23/00 ,  H10K19/20 ,  H10K59/12 ,  H01L25/00 ,  H10K71/00

CPC classification number: H01L25/18 ,  G09G3/3275 ,  H01L24/80 ,  H01L25/50 ,  H10K19/20 ,  H10K59/12 ,  H10K71/00 ,  G09G2300/0452 ,  G09G2300/08 ,  G09G2310/0297 ,  H01L2224/80007 ,  H01L2224/80098 ,  H01L2224/80203

Abstract: A display system includes (a) a display element having an organic light emitting diode-containing display active area disposed over a silicon backplane, (b) a display driver integrated circuit (DDIC) attached to the display element and electrically connected with the display active area, and (c) a thermal barrier disposed within the silicon backplane, where the thermal barrier is configured to inhibit heat flow through the silicon backplane and into the display active area.

公开(公告)号：US20230317000A1

公开(公告)日：2023-10-05

申请号：US17709978

申请日：2022-03-31

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Gang Chen ,  Qianqian Wang ,  Min Hyuk Choi

IPC: H01L27/32 ,  G09G3/3233

CPC classification number: H01L27/326 ,  G09G3/3233 ,  G09G2300/0443 ,  G09G2300/0842 ,  G09G2310/08

Abstract: Embodiments relate to a display device with subpixels that share switch transistors that selectively connect sources of driving transistors to a high voltage source. Further, part of reset transistors or part of a select transistor may be shared across multiple subpixels. The reset transistor selectively connects an anode of an organic light emitting diode (OLED) to a low voltage source. The select transistor selectively passes through pixel data from a data line when a gate signal is received via a gate line. Driver transistors and capacitors of the subpixels are independent and not shared. In this way, the dimensions of the subpixels may be reduced and enable increase in the density of the pixels.

公开(公告)号：US11686945B2

公开(公告)日：2023-06-27

申请号：US17529674

申请日：2021-11-18

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Zhiming Zhuang ,  Wonjae Choi ,  Cheonhong Kim

IPC: G02B27/01 ,  G02B27/00 ,  G06F3/01 ,  G06F3/147 ,  G09G3/3208 ,  G09G5/10 ,  G09G3/32 ,  G09G3/3225

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B27/0101 ,  G02B27/0179 ,  G06F3/013 ,  G06F3/147 ,  G09G3/3208 ,  G09G5/10 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.

公开(公告)号：US11600235B1

公开(公告)日：2023-03-07

申请号：US17556810

申请日：2021-12-20

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Zhiming Zhuang ,  Dong Chen

IPC: G09G3/34 ,  H04N5/225 ,  H04N5/235

Abstract: Embodiments relate to coordinating operation of an under-display camera and a portion of a display panel over the camera to reduce impact of light emitted from the display panel during light sensing periods of the under-display camera. Depending on the level of light in the surrounding of an electronic device, the light emission period of the display panel and the light sensing period of the under-display camera are adjusted. The timing of the light emission period and the light sensing period are controlled so that a row of pixels in the display panel is not in the light emission period when corresponding row or rows of sensors in the under-display camera are in the light sensing period. In this way, the under-display camera may capture images without the influence of light emitted from the display panel.

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：US20250046301A1

公开(公告)日：2025-02-06

申请号：US18787739

申请日：2024-07-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Balasubramanian Sivakumar ,  Min Hyuk Choi ,  Gang Chen ,  Gyungmin Kim ,  Ahmet Tura ,  Hai Jung In ,  Weiwei Wang ,  Suhui Lee ,  Woong Hwang ,  Wanyue Song ,  Wai Sze Tiffany Lam ,  Wanli Chi ,  Nikolaos Sarafianos ,  Rakesh Ranjan ,  Alexander Sorkine Hornung ,  Seonghyeon Nam ,  Hyunyoung Jung ,  Ruiming Xie ,  Ju Lin ,  Niko Moritz ,  Frank Torsten Bernd Seide

IPC: G10L15/16 ,  G02B6/26 ,  G02B6/27 ,  G02B6/34 ,  G06F40/40 ,  G10L15/02 ,  G10L15/18 ,  H10K59/12

Abstract: A display device includes a diffusion layer providing a single well, an optical element configured to receive light and output the received image light including a concentric series of lens segments made up of active facets, and a waveguide having an in-coupling grating and a waveguide body optically coupled to the image light, where a polarizing component is disposed over an output surface of the optical element. A method to improve a yield of silicon backplane displays includes connecting a diode having a resolution to a backplane and repairing a defect on a pixel display area by dividing the pixel display area into at least one subcircuit, while improving geometry stylization transfer for 3D models of real-world environments. A method for suppressing crosstalk for user conversations includes receiving multiple speech signals captured by multiple microphones and generating directional data for the multiple speech signals based on spatial filtering.