公开(公告)号：US12057067B2

公开(公告)日：2024-08-06

申请号：US17709989

申请日：2022-03-31

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Qianqian Wang ,  Min Hyuk Choi ,  Gang Chen

IPC: G09G3/3233 ,  G02B27/01 ,  G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G02B27/0172 ,  G09G3/3258 ,  G09G3/3291 ,  G02B2027/0178 ,  G09G2300/0876 ,  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：US11910643B1

公开(公告)日：2024-02-20

申请号：US17484638

申请日：2021-09-24

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Min Hyuk Choi ,  Cheonhong Kim ,  Zhiming Zhuang

IPC: H10K59/12 ,  G09G3/3225 ,  G06F3/01 ,  G02B27/01 ,  H01L27/12

CPC classification number: H10K59/12 ,  G02B27/0172 ,  G06F3/011 ,  G09G3/3225 ,  H01L27/1218 ,  G02B2027/0178 ,  G09G2310/0297 ,  H10K59/1201

Abstract: A method of manufacturing a display system includes forming a display element having a display active area over a silicon backplane, forming a display driver integrated circuit (DDIC), and bonding the display element to the display driver integrated circuit (DDIC). The display active area may include a light emitting diode such as an organic light emitting diode (OLED). Separately forming the display and the display circuitry may simplify formation of the OLED and allow for a higher density control interface between the display and the DDIC.

公开(公告)号：US11727892B1

公开(公告)日：2023-08-15

申请号：US18054016

申请日：2022-11-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Qianqian Wang ,  Gang Chen ,  Min Hyuk Choi ,  Zhiming Zhuang

IPC: G09G3/36 ,  G06T3/40 ,  G06F3/01 ,  G06V10/25 ,  G06T7/13

CPC classification number: G09G3/3611 ,  G06F3/013 ,  G06T3/4053 ,  G06T7/13 ,  G06V10/25

Abstract: Described is a system including a display, a display controller, and control logic communicatively coupled to the display. The display controller determines, based on coordinates of a focus point on the display, boundaries of a first image region and a second image region in an output image to be rendered. The focus point is determined through tracking an eye movement of a user viewing the display. The first image region has a higher resolution than the second image region. The display controller is configured to send image data together with control signals to the control logic. The control signals cause the control logic to render the output image on the display using the image data. As part of rendering the second image region, the control logic outputs a shared signal onto signal lines that are coupled to light sources in a group of adjacent rows or columns.

公开(公告)号：US11621316B1

公开(公告)日：2023-04-04

申请号：US17580514

申请日：2022-01-20

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Min Hyuk Choi ,  Cheonhong Kim ,  Richard Han Soo Cho

IPC: H01L27/12 ,  H01L27/32 ,  H01L51/00 ,  G06F3/041 ,  H01L21/768

Abstract: A device such as a micro-OLED includes a display element having a display active area disposed over a silicon backplane and a display driver integrated circuit (DDIC) electrically coupled to the display element through at least one contact that extends through the silicon backplane. Through silicon via (TSV) technology may be used to form the contacts. A chip-on-flex architecture may be used to orient and attach the DDIC to the silicon backplane.

公开(公告)号：US11615740B1

公开(公告)日：2023-03-28

申请号：US17102386

申请日：2020-11-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Cheonhong Kim ,  Zhiming Zhuang

IPC: G09G3/3225 ,  G09G3/36 ,  G09G3/34

Abstract: Example devices may include a display (such as an emissive display), and a controller, where the controller is configured to determine an image content parameter for a displayed image shown on the display, and adjust a duty ratio of the display based on the image content parameter. The duty ratio may be dynamically adjusted based on, for example, an image content parameter that may be related to the brightness of the image, or a portion thereof. The controller may be configured to determine an image content parameter for each of one or more portions of a displayed image, and adjust a duty ratio for corresponding parts of the display based on the image content parameter associated with the respective one or more portions of the displayed image.

公开(公告)号：US11487357B2

公开(公告)日：2022-11-01

申请号：US17220744

申请日：2021-04-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Cheonhong Kim ,  Youngshik Yoon

IPC: G06F3/01 ,  G09G3/3275 ,  G09G3/3266 ,  G09G3/20

Abstract: In one embodiment, a computing system may determine a first region and a second region of an image based on gaze data of a user. The second region of the image may be displayed with lower image resolution. The system may access a first pixel value associated with the first region of the image and cause a first source driver circuit to generate a first pixel signal. The first pixel signal may be configured to control a luminance of a first number of pixels of the display. The system may access a second pixel value associated with the second region of the image and cause a second source driver circuit to generate a second pixel signal. The second pixel signal may be configured to control a second number of pixels, which is larger than the first number and may include a longer pulse duration than the first pixel signal.

公开(公告)号：US12266305B2

公开(公告)日：2025-04-01

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

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：US12087222B2

公开(公告)日：2024-09-10

申请号：US17709978

申请日：2022-03-31

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Gang Chen ,  Qianqian Wang ,  Min Hyuk Choi

IPC: G09G3/3233 ,  G09G3/00 ,  H10K59/121

CPC classification number: G09G3/3233 ,  H10K59/121 ,  G09G3/002 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852

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：US20230282177A1

公开(公告)日：2023-09-07

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 ,  G09G2380/00 ,  G09G2300/0452 ,  G09G2330/021

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：US11698530B2

公开(公告)日：2023-07-11

申请号：US17027521

申请日：2020-09-21

Applicant: Meta Platforms Technologies, LLC

Inventor： Min Hyuk Choi ,  Zhiming Zhuang ,  Wonjae Choi

IPC: G02B27/01 ,  G02B27/00 ,  G06F3/01 ,  G09G3/3233

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G06F3/013 ,  G06F3/015 ,  G09G3/3233 ,  G02B2027/014 ,  G02B2027/0187

Abstract: A method of leakage-compensated global illumination comprises obtaining position data for at least one of a head or an eye of a user of a display system by an application processor, rendering image data for an image frame by the application processor based on the position data, modifying the image data to compensate for leakage associated with a global illumination by a display of the display system, and sending the image data to a display driver circuit of the display system for displaying the image frame on the display through the global illumination.