Invention Grant
- Patent Title: Parallel pipelines for computing backlight illumination fields in high dynamic range display devices
-
Application No.: US16152358Application Date: 2018-10-04
-
Publication No.: US10607552B2Publication Date: 2020-03-31
- Inventor: Jens Roever
- Applicant: NVIDIA Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Nvidia Corporation
- Current Assignee: Nvidia Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Artegis Law Group, LLP
- Main IPC: G09G5/02
- IPC: G09G5/02 ; G09G3/34 ; G09G3/20 ; G09G3/36
Abstract:
A display controller generates a backlight illumination field (BLIF) based on a coarse point-spread function (PSF) and a correction PSF. The display controller samples the coarse PSF to accumulate light contributions from a larger neighborhood of LEDs around a given LCD pixel. The display controller samples the correction PSF to generate correction factors for a smaller neighborhood of LEDs around the given LCD pixel. The display controller interpolates samples drawn from the coarse PSF and samples drawn from the correction PSF and then combines the interpolated samples to generate a full resolution BLIF.
Public/Granted literature
- US20190266954A1 PARALLEL PIPELINES FOR COMPUTING BACKLIGHT ILLUMINATION FIELDS IN HIGH DYNAMIC RANGE DISPLAY DEVICES Public/Granted day:2019-08-29
Information query
