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31. 发明授权

US11908399B2 Column interchangeable demultiplexer structure in displays 有权
公开(公告)号：US11908399B2
公开(公告)日：2024-02-20
申请号：US17905427
申请日：2020-11-25
申请人： GOOGLE LLC
发明人： Sangmoo Choi
IPC分类号： G09G3/3208
CPC分类号： G09G3/3208 , G09G2300/0426 , G09G2300/0452 , G09G2310/0297 , G09G2310/08 , G09G2330/021
摘要： A display includes subpixel emissive areas of first, second, and third colors arranged in an array that includes rows and columns. The display also includes scan lines, column lines, and electronic subpixel circuits arranged in the array, with each subpixel circuit in a column of the array being electrically connected to a same column line and each electronic subpixel circuit configured for receiving electronic signals from a scan line and from a column line and for converting the received signals into a current signal provided to one of the subpixel emissive areas to drive light emission from the subpixel emissive area. The display further includes demultiplexer (DEMUX) switches, where every other column line of the columns lines is configured to be connected to at least two outputs from a column line driver through the DEMUX switches.

32. 发明公开

US20230298505A1 SELECTIVE BLACK LEVEL CONTROL IN ACTIVE MATRIX DISPLAYS 审中-公开
公开(公告)号：US20230298505A1
公开(公告)日：2023-09-21
申请号：US17910641
申请日：2021-07-30
申请人： Google LLC
发明人： Sangmoo Choi , Daniel Solomon
IPC分类号： G09G3/20 , G09G3/3225
CPC分类号： G09G3/2074 , G09G3/3225 , G09G2300/08 , G09G2340/0435 , G09G2320/0233 , G09G2320/0242 , G09G2310/0202
摘要： A method includes: (a) receiving initial image frame data to display an image frame on a display panel, a luminance of each pixel of the display corresponding to a gray level; (b) identifying dark pixels at or below a first threshold gray level; (c) identifying pixels to be modified as a subset of the dark pixels neighbored by at least one bright pixel exceeding a second threshold gray level; (d) increasing by an incremental amount the gray level of the pixels to be modified, providing modified image frame data composed of: (i) the dark pixels that are neighbored by at least one bright pixel having gray levels that have been increased by the incremental gray level amount, and (ii) other pixels that have gray levels from the initial image frame data; and (e) displaying the image frame using the modified image frame data.

33. 发明公开

US20230222972A1 UNDER-DISPLAY SENSOR OPERATION 审中-公开
公开(公告)号：US20230222972A1
公开(公告)日：2023-07-13
申请号：US18000909
申请日：2020-08-31
申请人： Google LLC
发明人： Sangmoo Choi , Yi Zhang
IPC分类号： G09G3/3225 , G06V40/13
CPC分类号： G09G3/3225 , G06V40/1318 , G09G2360/145 , G09G2360/148
摘要： An example method includes programming, based on image data of a frame of a plurality of frames and during a non-emission period of the frame, pixels of a plurality of pixels of a display of a computing device; causing pixels of the plurality of pixels to emit light during an emission period of the frame, wherein an amount of light emitted by the pixels during the emission period is based on the programming; and synchronizing operation of one or more sensors and operation of the plurality of pixels by at least causing the one or more sensors to emit, during a particular portion of the emission period of the frame, electromagnetic radiation through the display.

34. 发明申请

US20230101133A1 END-TO-END CAMERA ARCHITECTURE FOR DISPLAY MODULE 有权
公开(公告)号：US20230101133A1
公开(公告)日：2023-03-30
申请号：US17785751
申请日：2020-10-06
申请人： Google LLC
发明人： Sangmoo Choi , Chang Ju Kang
IPC分类号： H04M1/02 , H04N23/90 , H04N5/265 , H10K50/84 , H01L23/538 , G06F1/16
摘要： A display module is described that has two or more front-facing camera modules at opposing edges of a computing device. Using images acquired by both camera modules, when a user is looking directly at the display, it is possible to generate an image of the user as though he/she was looking directly toward the lens of a camera module.

35. 发明申请

US20230006169A1 OLED DISPLAY MODULE STRUCTURE FOR MITIGATING DARK SPOT VISIBILITY IN BACK COVER OPEN REGIONS 有权
公开(公告)号：US20230006169A1
公开(公告)日：2023-01-05
申请号：US17758273
申请日：2020-08-28
申请人： GOOGLE LLC
发明人： Jyothi Karri , Sangmoo Choi
IPC分类号： H01L51/52 , H01L51/00
摘要： A mobile computing device includes an emissive display panel configured to emit light from a front surface of the display panel, with the display panel having a plurality of transparent layers and an opaque back cover layer. The mobile computing device also includes a light sensor located behind the opaque back cover layer, and the opaque back cover layer includes an opening through which light from outside the display that is transmitted through the transparent layers of the display can pass to reach the sensor. An air gap separates the light sensor from the transparent layers of the display panel. The plurality of transparent layers includes a reflection attenuating layer on a back side of the display panel configured to attenuate the reflection of light from an interface between a transparent layer of the display panel and the air gap.

36. 发明申请

US20220415250A1 REDUCING SCREEN CORNER BEZEL SIZE 有权
公开(公告)号：US20220415250A1
公开(公告)日：2022-12-29
申请号：US17274900
申请日：2020-08-27
申请人： Google LLC
发明人： Sangmoo Choi , Adrian Gheorghe Manea
IPC分类号： G09G3/3208
摘要： A display panel includes an array of pixels extending in a plane and arranged in rows, wherein a first plurality of the rows extend to an edge of the pixel array and one or more rows at a corner of the pixel array are recessed from the edge. The display panel includes driver circuits each connected to a corresponding row of the pixel array and occupying an area in the plane, the area having a long dimension and an orthogonal short dimension. A first set of driver circuits are connected to corresponding rows of the first plurality of rows and a second set of driver circuits are connected to corresponding rows at the corner of the pixel array. The long dimension of each of the drivers of the first set of drivers is greater than the long dimension of each of the drivers of the second set of drivers.

37. 发明申请

US20220406854A1 DISPLAY PANEL STRUCTURE WITH UNI-COLOR DATA LINES 有权
公开(公告)号：US20220406854A1
公开(公告)日：2022-12-22
申请号：US17756382
申请日：2020-02-07
申请人： Google LLC
发明人： Sangmoo Choi , Sun-il Chang
IPC分类号： H01L27/32 , G09G3/3266
摘要： A display device includes a plurality of subpixel emissive areas of a first color, a second color, and a third color arranged in an array having a plurality of rows and columns. Rows of the array include subpixel emissive areas arranged in a repeating pattern of a first color subpixel emissive area, a second color subpixel emissive area, a third color subpixel emissive area, and a second color subpixel emissive area. Alternating columns of the array include subpixel emissive areas: (a) arranged in a repeating pattern of a subpixel emissive area of the first color and a subpixel emissive areas of the third color, and (b) including only subpixel emissive areas of the second color. The display device further includes a plurality of scan lines, a plurality of column lines, and a plurality of electronic subpixel circuits arranged in the array. Each electronic subpixel circuit is configured for receiving electronical signals from a scan line and from a column line and for converting the received signals into a current signal provided to one of the subpixel emissive areas to drive light emission from the subpixel emissive area, where electronic subpixel circuits arranged in a column of the array drive columns of emissive areas having only one color.

38. 发明申请

US20220278186A1 SUPPRESSING SCATTERING OF LIGHT TRANSMITTED THROUGH OLED DISPLAYS 有权
公开(公告)号：US20220278186A1
公开(公告)日：2022-09-01
申请号：US17627041
申请日：2020-09-17
申请人： GOOGLE LLC
发明人： Sangmoo Choi , Jyothi Karri , Ion Bita , Chia-Kai Liang
IPC分类号： H01L27/32 , H01L51/52
摘要： An apparatus includes a display panel having a first pixel area having a first pixel density and a second pixel area having a second pixel density higher than the first, the panel configured to generate images viewable from a front side and a sensor positioned at the back side arranged to receive incident light transmitted from the front to the back through the first pixel area. The first pixel area has light emitting pixels and signal lines electrically connecting pixel circuits associated with the pixels, and the panel includes a layer having a light blocking material patterned to provide apertures to transmit the incident light between some of the light emitting pixels and the signal lines and to block the incident light from the pixel circuits and the signal lines. Apertures can have different dimensions.

39. 发明申请

US20220189415A1 SYNCHRONOUSLY AND LOCALLY TURNING-OFF SUB-PIXELS IN UNDER-DISPLAY SENSOR AREA OF AMOLED PANEL 有权
公开(公告)号：US20220189415A1
公开(公告)日：2022-06-16
申请号：US17291987
申请日：2020-09-03
申请人： Google LLC
发明人： Sangmoo Choi , Sun-il Chang , Sang Young Youn
IPC分类号： G09G3/3291 , G09G3/20
摘要： An apparatus is described that includes a display panel and a sensor. The display panel includes an array of pixels configured to direct light through a front side of the display panel. Each pixel includes sub-pixels, each of which includes an organic light emitting diode (OLED) and an integrated circuit (IC) for controlling an electrical current to the OLED. The sensor is arranged at a back side of the display panel. The sensor includes an emitter configured to emit electromagnetic radiation transmitted through a first area of the display panel. The IC of sub-pixels of the array of pixels outside the first area includes a first IC arrangement. The IC of sub-pixels of the array of pixels within the first area includes a transistor in addition to the first IC arrangement. The transistor is configured to operate as a control switch controlling emission of light from the sub-pixel.

40. 发明授权

US11145256B1 Dynamic control of scan signals in AMOLED displays 有权
公开(公告)号：US11145256B1
公开(公告)日：2021-10-12
申请号：US17014585
申请日：2020-09-08
申请人： Google LLC
发明人： Sangmoo Choi , Sang Young Youn
IPC分类号： G09G3/3266 , G09G3/3225
摘要： This document describes systems and techniques for dynamic control of scan signals in active-matrix organic light-emitting diode (AMOLED) displays. Displays in portable electronic devices, such as smartphones, include tens of thousands of pixels. Scan signals in the display control the brightness and color of individual pixels. A leading source of power consumption in AMOLED displays, however, is the parasitic capacitance in the scan lines that carry the scan signals. As the frame rate of AMOLED displays has increased, the frequency of scan signals and the associated parasitic capacitance has also increased. The described AMOLED display can dynamically control the number of pulses in scan signals to reduce power consumption without degrading image quality.

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