公开(公告)号：US11410591B2

公开(公告)日：2022-08-09

申请号：US16945331

申请日：2020-07-31

Applicant: Google LLC

Inventor： David Morris Hoffman ,  Sangmoo Choi ,  Sun-il Chang ,  Ion Bita

IPC: G09G3/20 ,  G09G3/3208

Abstract: A display panel includes a first set of pixels that each include a respective red sub-pixel and a respective green sub-pixel and a second set of pixels that each include a respective blue sub-pixel and a respective green sub-pixel, where the first set of pixels and the second set of pixels are arranged on the display panel such that at least one side of each of the pixels in the first set of pixels is adjacent to at least one of the pixels in the second set of pixels, at least one side of each of the pixels in the first set of pixels is not adjacent to any pixel, and the green sub-pixels are arranged on the display panel such that the green sub-pixels are evenly distributed in the display panel.

公开(公告)号：US20220187878A1

公开(公告)日：2022-06-16

申请号：US17598738

申请日：2021-02-17

Applicant: Google LLC

Inventor： Sun-il Chang ,  Sangmoo Choi

IPC: G06F1/16

Abstract: A device includes: an array of light emitting elements extending in a first plane, each light emitting element being arranged to emit light; an array of pixel driver elements extending in a second plane beneath the array of pixels, in which each pixel driver element is configured to drive a corresponding light emitting element of the array of light emitting elements; a hole positioned within the array of light emitting elements and the array of pixel driver elements, in which the hole extends from the first plane through the second plane, a first multiple of light emitting elements from the array of light emitting elements in a first region adjacent the hole are arranged to provide a first resolution, and a second multiple of light emitting elements from the array of elements in a second region away from the hole are arranged to provide a second resolution.

公开(公告)号：US20220157234A1

公开(公告)日：2022-05-19

申请号：US17596047

申请日：2019-11-20

Applicant: Google LLC

Inventor： Hyunchul Kim ,  Sun-il Chang ,  Wonjae Choi

IPC: G09G3/3208

Abstract: A burn-in compensation method and a computing device configured for burn-in compensation is disclosed. The burn-in compensation can minimize or eliminate a burn-in of an OLED display having areas with different pixel densities. Each area of the OLED display may be divided into zones that include one or more pixels and a burn-in factor may be computed for the zones. A limiting burn-in factor may be determined from a limiting zone that exhibits the highest burn-in. Other zones with burn-in factors that area significantly different from the limiting burn-in factor can be adjusted so that the pixels in the adjusted zones can be driven to radiate similar light at a power similar to the liming zone. The burn-in compensation may be performed for each area and a transition region may be created between areas to minimize light artifacts after burn-in compensation.

公开(公告)号：US20210391391A1

公开(公告)日：2021-12-16

申请号：US17446554

申请日：2021-08-31

Applicant: GOOGLE LLC

Inventor： Sangmoo Choi ,  Sun-il Chang ,  Jyothi Karri ,  Ion Bita

IPC: H01L27/32 ,  G09G3/3225 ,  G06F3/041 ,  H04M1/02

Abstract: A display configuration to extend the light emitting and touch sensitive portion of a display panel into areas normally reserved for other light devices is disclosed. In the configuration, light devices and the display panel are configured to operate together. The display panel may include an aperture through the display panel to provide an unobstructed light path to a light device. The display panel may also include a routing area to provide space for data lines feeding pixels to be rerouted around the aperture. The routing area is partially obstructed by data lines but otherwise transparent. Accordingly, some display devices may be positioned behind the routing area and still operate.

公开(公告)号：US20210126059A1

公开(公告)日：2021-04-29

申请号：US16830750

申请日：2020-03-26

Applicant: Google LLC

Inventor： Sun-il Chang ,  Sangmoo Choi ,  Hyunchul Kim

IPC: H01L27/32

Abstract: A display panel includes a plurality of array sites arranged in an array defined by a plurality of rows and a plurality of columns. The display panel includes a first area of the array having a first pixel density and a second area of the array having a second pixel density lower than the first pixel density. The second area of the array includes a plurality of the array sites that are devoid of pixels. Rows of the second area that border the first area include at least one pixel and columns of the second area that border the first area include at least one pixel.

公开(公告)号：US20250087170A1

公开(公告)日：2025-03-13

申请号：US18959505

申请日：2024-11-25

Applicant: Google LLC

Inventor： Sangmoo Choi ,  Sun-il Chang

IPC: G09G3/3266 ,  G09G3/20

Abstract: A display device includes subpixels of a first, second, and third colors, scan lines, and column lines. The subpixels are arranged in an array of rows and columns, with each subpixel in a column being electrically connected to a same column line. Each subpixels in a column is configured for receiving electronic scan signals that control a light output from an emissive element of the subpixel from a scan line and from the column line connected to the subpixel. One or more line drivers provide the electronic scan signals, during a time period for rendering a frame, to subpixels in a first set of columns first to subpixels of the first color and then to the subpixels of the third color and to subpixels in a second set of columns first to subpixels of the third color and then to the subpixels of the first color.

公开(公告)号：US12217698B2

公开(公告)日：2025-02-04

申请号：US18033604

申请日：2021-05-11

Applicant: GOOGLE LLC

Inventor： Sangmoo Choi ,  Sun-il Chang

IPC: G09G3/20 ,  G09G3/3266

Abstract: A display device includes subpixels of a first, second, and third colors, scan lines, and column lines. The subpixels are arranged in an array of rows and columns, with each subpixel in a column being electrically connected to a same column line. Each subpixels in a column is configured for receiving electronic scan signals that control a light output from an emissive element of the subpixel from a scan line and from the column line connected to the subpixel. One or more line drivers provide the electronic scan signals, during a time period for rendering a frame, to subpixels in a first set of columns first to subpixels of the first color and then to the subpixels of the third color and to subpixels in a second set of columns first to subpixels of the third color and then to the subpixels of the first color.

公开(公告)号：US11978378B2

公开(公告)日：2024-05-07

申请号：US17880223

申请日：2022-08-03

Applicant: Google LLC

Inventor： David Morris Hoffman ,  Sangmoo Choi ,  Sun-il Chang ,  Ion Bita

IPC: G09G3/20 ,  G09G3/3208

CPC classification number: G09G3/2003 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2360/144

Abstract: A display panel includes a first set of pixels that each include a respective red sub-pixel and a respective green sub-pixel and a second set of pixels that each include a respective blue sub-pixel and a respective green sub-pixel, where the first set of pixels and the second set of pixels are arranged on the display panel such that at least one side of each of the pixels in the first set of pixels is adjacent to at least one of the pixels in the second set of pixels, at least one side of each of the pixels in the first set of pixels is not adjacent to any pixel, and the green sub-pixels are arranged on the display panel such that the green sub-pixels are evenly distributed in the display panel.

公开(公告)号：US11948520B2

公开(公告)日：2024-04-02

申请号：US17786961

申请日：2020-03-31

Applicant: GOOGLE LLC

Inventor： Sang Young Youn ,  Sun-il Chang ,  Wonjae Choi ,  Sangmoo Choi

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/0252 ,  G09G2320/064 ,  G09G2340/0435

Abstract: PWM-frame rate misalignment is mitigated through implementation of a discrete variable refresh rate (VRR) scheme. A target frame rate is limited to a frame rate selected from only those frame rates that facilitate alignment of each frame period to a specified edge of a PWM cycle of a brightness control signal of a display panel. This alignment results in each frame period at the selected frame rate starting at a same point in a corresponding PWM cycle and ending at a same point in a corresponding PWM cycle to help ensure a constant effective duty cycle across each successive frame period, which in turn mitigates perception of flicker that otherwise would arise. Further, the discrete VRR scheme can employ a compensation mode for compensating for the delay in rendering or otherwise obtaining a frame for display so as to maintain a consistent duty cycle in the brightness control signal.

公开(公告)号：US11687126B2

公开(公告)日：2023-06-27

申请号：US17598738

申请日：2021-02-17

Applicant: Google LLC

Inventor： Sun-il Chang ,  Sangmoo Choi

IPC: G06F1/16 ,  H10K59/00 ,  H01L27/32

CPC classification number: G06F1/1686 ,  G06F1/1688 ,  H01L27/3225

Abstract: A device includes: an array of light emitting elements extending in a first plane, each light emitting element being arranged to emit light; an array of pixel driver elements extending in a second plane beneath the array of pixels, in which each pixel driver element is configured to drive a corresponding light emitting element of the array of light emitting elements; a hole positioned within the array of light emitting elements and the array of pixel driver elements, in which the hole extends from the first plane through the second plane, a first multiple of light emitting elements from the array of light emitting elements in a first region adjacent the hole are arranged to provide a first resolution, and a second multiple of light emitting elements from the array of elements in a second region away from the hole are arranged to provide a second resolution.