Variable Storage of Bits on a Backplane

• US 20070097047A1
• Filed: 05/11/2006
• Published: 05/03/2007
• Est. Priority Date: 05/20/2003
• Status: Active Grant

• Current Assignee: Syndiant Incorporated
• Original Assignee: Syndiant Incorporated
• Inventors: Guttag, Karl
• Granted Patent: US 8,004,505 B2
• Time in Patent Office: Days
• US Class Current: 345/84
• CPC Class Codes: G06F 3/147 using display panels
• CPC Class Codes: G09G 2300/0809 Several active elements per pixel in active matrix panels
• CPC Class Codes: G09G 2300/0857 Static memory circuit, e.g. flip-flop
• CPC Class Codes: G09G 2310/0221 with use of split matrices G09G3/3644 and G09G3/3666 take precedence
• CPC Class Codes: G09G 2310/0275 Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
• CPC Class Codes: G09G 3/2014 by modulation of the duration of a single pulse during which the logic level remains constant
• CPC Class Codes: G09G 3/2022 using sub-frames
• CPC Class Codes: G09G 3/34 by control of light from an independent source
• CPC Class Codes: G09G 3/346 based on modulation of the reflection angle, e.g. micromirrors micromirrors devices per se G02B26/0833
• CPC Class Codes: G09G 5/10 Intensity circuits

Abstract

The present invention provides a various methods, systems and devices for controlling light modulating elements and/or spatial light modulators. In some embodiments of the present invention, a recursive feedback method is used to control light modulating elements and/or spatial light modulators.

Claims

1-125. -125. (canceled)

126. A method comprising:

storing a first group of bit positions of a plurality of pixels in bit position arrays on a backplane;

storing at least one second group of bit positions on said backplane; and

combining on said backplane said first group and said at least one second group to thereby control one or more light modulating elements, wherein said second group of bit positions is stored for a shorter period of time on said backplane than said first group of bit positions is stored on said backplane.

169. The method of claim 126, wherein one or more light modulating elements are controlled using at least one pulse width.

127. A system comprising:

means for storing a first group of bit positions of a plurality of pixels in bit position arrays on a backplane;

means for storing at least one second group of bit positions on said backplane; and

control means for combining on said backplane said first group and said at least one second group to thereby control one or more light modulating elements, wherein said second group of bit positions is stored for a shorter period of time on said backplane than said first group of bit positions is stored on said backplane.

170. The system of claim 127, wherein one or more light modulating elements are controlled using at least one pulse width.

128. A method comprising:

storing a first group of bit positions of a plurality of pixels in bit position arrays on a backplane;

storing at least one summary bit of said plurality of pixel value on said backplane, and

combining on said backplane said first group and said at least one summary bit to thereby control one or more light modulating elements.

129. The method of claim 128, wherein said summary bit is based on selected bit positions and said selected bit positions are selected based on a count step for controlling said pulse width.

130. A system comprising:

means for storing a first group of bit positions of a plurality of pixels in bit position arrays on a backplane;

means for storing at least one summary bit of said plurality of pixel value on said backplane, and

means for combining on said backplane said first group and said at least one summary bit to thereby control one or more light modulating elements.

171. The system of claim 128, wherein one or more light modulating elements are controlled using at least one pulse width.

131-168. -168. (canceled)

171-1. The system of claim 130, wherein one or more light modulating elements are controlled using at least one pulse width.