Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
James C. Morizio0
Kristina M. Johnson0
Sangrok Lee0
Date of Patent
June 28, 2005
0Patent Application Number
102894590
Date Filed
November 7, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An enhanced frame buffer pixel circuit with two control transistors and a separate capacitor put in as a memory capacitor before the memory transistor yields a high contrast ratio by removing induced charge and solving a charge sharing problem between the memory capacitor and the liquid crystal display (LCD) capacitor. The memory transistor may be made of either CMOS or PMOS. The frame buffer pixel can be used to drive binary displays which expresses ON and OFF only if a comparator is put in after the pixel electrode circuit to represent gray levels with reduced sub-frame frequency.
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