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：US12217690B2

公开(公告)日：2025-02-04

申请号：US18553136

申请日：2021-08-09

Applicant: Google LLC

Inventor： Sangmoo Choi

IPC: G09G3/3233 ,  G06V40/13

Abstract: An example device includes a display panel; a fingerprint sensor configured to sense a fingerprint through the display panel; and processing circuitry configured to: responsive to activation of the fingerprint sensor: activate a local high brightness mode by at least increasing an amount of light radiated from a first portion of the display panel that overlies the fingerprint sensor; and temporarily decrease controlled brightness of a second portion of the display panel that is non-overlapping with the first portion.

公开(公告)号：US12213364B2

公开(公告)日：2025-01-28

申请号：US17556306

申请日：2021-12-20

Applicant: Google LLC

Inventor： David Morris Hoffman ,  Ion Bita ,  Sangmoo Choi

IPC: H10K59/35 ,  H10K59/131

Abstract: In general, the subject matter described in this disclosure can be embodied in a display panel. The display panel includes a first area of multiple pixels that has a first density of light emitting diodes (LEDs), and that has an equal representation of LEDs of a first color, a second color, and a third color. Each pixel in the first area has: (i) a first sub-pixel comprising an LED of the first color, (ii) a second sub-pixel comprising an LED of the second color, and (iii) a third sub-pixel comprising an LED of the third color. The display panel includes a second area of multiple pixels that borders the first area, that has a second density of LEDs that is lower than the first density, and that has an unequal representation of LEDS of the first color, the second color, and the third color.

公开(公告)号：US12106733B2

公开(公告)日：2024-10-01

申请号：US17932555

申请日：2022-09-15

Applicant: Google LLC

Inventor： Sangmoo Choi ,  Mark Mienko

IPC: G09G5/10 ,  G09G3/3208

CPC classification number: G09G5/10 ,  G09G3/3208 ,  G09G2360/144 ,  G09G2360/145

Abstract: This document describes systems and directed at rejecting display leakage light in under-display sensors. In aspects, an ambient light sensor of an electronic device rejects leakage light originating from pixels in a display using a look-up table and an ambient light calculating formula. In implementations, the look-up table is developed based on a variety of operating conditions that the electronic device may experience, including variable refresh rates and display luminosities. The look-up table includes pre-calculated values of a leakage light ratio, for given operating conditions, that can be used to reject leakage light originating from displays by computing the ambient light calculating formula.

公开(公告)号：US12051370B2

公开(公告)日：2024-07-30

申请号：US17754830

申请日：2021-02-02

Applicant: Google LLC

Inventor： Sangmoo Choi ,  Chang Ju Kang ,  Jae Won Choi

IPC: H10K59/131 ,  G09G3/3225 ,  G09G3/3258 ,  H01L23/522

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2320/02 ,  G09G2320/0209 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2330/02 ,  G09G2354/00 ,  H01L23/5226 ,  H10K59/131 ,  H10K59/1315

Abstract: Techniques to provide uniform luminance across a computing device display, such as an active matrix organic light emitting diode (AMOLED) display. In some examples, a computing device display may include a hole within the active area of the display that may be used for a camera, a button or some other function. The hole may result in a non-uniform voltage drop in a power supply mesh in regions of the active area near the hole. The power supply mesh may provide electrical energy to elements of the display. The techniques of this disclosure include portions of the power supply mesh that are not connected to the voltage supply bus to ensure a uniform voltage drop across the active area of the display.

公开(公告)号：US11980057B2

公开(公告)日：2024-05-07

申请号：US17595198

申请日：2020-05-22

Applicant: GOOGLE LLC

Inventor： Sangmoo Choi ,  Jyothi Karri ,  Ion Bita

IPC: H10K59/121 ,  G06F3/044 ,  H10K59/12 ,  H10K59/126 ,  H10K59/131 ,  H10K59/40 ,  H10K59/65 ,  H10K71/00

CPC classification number: H10K59/121 ,  G06F3/0446 ,  H10K59/126 ,  H10K59/131 ,  H10K59/40 ,  H10K59/65 ,  H10K71/00 ,  H10K59/1201

Abstract: A display configuration to facilitate imaging through the display is disclosed. The imaging can be achieved by positioning a camera behind a through-transmissive area of a display. The through-transmissive area is configured to reduce the interaction between the light propagating through the display and circuit elements of the display. The configuration of the through-transmissive area can be characterized by reduced pixel density, rearranged circuit elements, and a light blocking layer to prevent light from diffracting from gaps formed by circuit elements.

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.