Liquid crystal display with color motion blur compensation structures

US9798199B2 · kind B2 · utility

Assignee

• Apple Inc. · US

Inventors

• Yuan Chen · Campbell, US
• Zhibing Ge · Los Altos, US
• Adria Fores Herranz · San Jose, US
• Chia Hsuan Tai · San Jose, US
• Hossein Nemati · Santa Clara, US
• Jun Jiang · Nagoya, JP
• Cheng Chen

Key dates

• Filing date: Sep 10, 2015
• Grant date: Oct 24, 2017
• Expiry date: Sep 10, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2201/52
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.