Yuan N Chen

US Patent:

20160026037, Jan 28, 2016

Filed:

Jul 23, 2014

Appl. No.:

14/339263

Inventors:

- Cupertino CA, US
Yuan Chen - Orlando FL, US
Zhibing Ge - Sunnyvale CA, US

International Classification:

G02F 1/1335
G02F 1/1368

Abstract:

A display may have a thin-film transistor layer formed from a layer of thin-film transistor circuitry on a substrate, a color filter layer, and a layer of liquid crystal material interposed between the thin-film transistor layer and the color filter layer. The thin-film transistor layer, the liquid crystal layer, and the color filter layer may be sandwiched between upper and lower polarizers. A backlight unit may supply backlight illumination for pixels in the display. The color filter layer may have a black matrix with an array of openings. Color filter elements of different colors may be formed in the openings. The black matrix may have sidewalls that are steep or that are undercut. The profile of the black matrix helps block improperly colored off-axis light and thereby reduces undesired color mixing in the display.