公开(公告)号：US20240233673A1

公开(公告)日：2024-07-11

申请号：US18408803

申请日：2024-01-10

Applicant: Snap Inc.

Inventor： Trent D. Whitten

IPC: G09G3/36 ,  G09G3/32

CPC classification number: G09G3/3648 ,  G09G3/32 ,  G09G2310/0289 ,  G09G2330/021

Abstract: A pixel level-shifter for driving a pixel of a display has a reduced power consumption and a reduced size. The pixel level-shifter includes an internal reference voltage generator that receives an external reference voltage signal and generates an internal reference voltage signal based on the external reference voltage signal. A level-shifting circuit receives a low voltage pixel output signal and generates a boosted drive signal based on the low voltage pixel output signal and the internal reference voltage signal. A first transistor circuit is coupled between a high voltage pixel supply voltage node and a pixel electrode node and includes a control node coupled to receive the boosted drive voltage signal. The first transistor circuit controls application of a high voltage pixel supply voltage signal on the pixel electrode node in response to the boosted drive signal.

公开(公告)号：US20230282150A1

公开(公告)日：2023-09-07

申请号：US18040410

申请日：2021-11-23

Applicant: Snap Inc.

Inventor： Ian Kyles ,  Trent D. Whitten ,  Jamie J. LeVasseur

IPC: G09G3/20 ,  G09G3/18 ,  G09G3/14

CPC classification number: G09G3/2085 ,  G09G3/2018 ,  G09G3/2074 ,  G09G3/18 ,  G09G3/14 ,  G09G2310/0264 ,  G09G2300/0452 ,  G09G2300/0456

Abstract: A system of the present invention reduces the size and/or increases the efficiency of a display system or device that integrates or includes a display, for example, an LED display such as a microLED display and OLED display or an LCoS display into such system or device. Embodiments of the present disclosure include, but are not limited to, a display wherein the at least two pixels are four pixels comprising two green pixels, one blue pixel, and one red pixel, and wherein a pixel logic circuit maintains the red pixel in an on state while driving the two green pixels and the blue pixel in accordance with a field sequential color (FSC) pixel drive process or method.