The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2017
Filed:
Jul. 23, 2014
Apple Inc., Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
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.