LCD in which the transparent electrode of a pixel is coated with a conducting material to modify its electrode work function to prevent flicker

US7006183B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Mark Thomas Johnson · Arendonk, BE
• Adrianus A. Van Der Put · Eindhoven, NL
• Gerard Cnossen · Singapore, SG
• Michael Buchel · Eindhoven, NL
• Josephus Paulus Augustinus Deeben · Eindhoven, NL
• Tom Marshall · Hartsdale, US
• Kevin Haberern · Cary, US

Key dates

• Filing date: Feb 6, 2001
• Grant date: Feb 28, 2006
• Expiry date: Feb 6, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2320/0247
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In a display device comprising a first substrate having at least one transparent, first picture electrode of a first material, a second substrate comprising at least one second picture electrode of a second material which, jointly with the picture electrode on the first substrate and an intermediate opto-electronic material, defines a pixel, and means for supplying electric voltages to the picture electrodes, the work function between the two picture electrodes is decreased in that at least one of the picture electrodes is coated with at least one layer of conducting material, or a layer of a material comprising a dipole.