Invention Grant
- Patent Title: Microdisplay and interface on single chip
- Patent Title (中): 微型显示器和单芯片接口
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Application No.: US10831545Application Date: 2004-04-23
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Publication No.: US07283105B2Publication Date: 2007-10-16
- Inventor: James M. Dallas , David B. Hollenbeck , Per Harold Larsen , Rainer M. Malzbender , Earle R. Vickery, III , Michael Wayne Yee
- Applicant: James M. Dallas , David B. Hollenbeck , Per Harold Larsen , Rainer M. Malzbender , Earle R. Vickery, III , Michael Wayne Yee
- Applicant Address: US CO Longmont
- Assignee: Displaytech, Inc.
- Current Assignee: Displaytech, Inc.
- Current Assignee Address: US CO Longmont
- Agency: Marsh Fischmann & Breyfogle LLP
- Agent Robert G. Crouch
- Main IPC: G09G3/00
- IPC: G09G3/00

Abstract:
A microdisplay having interface circuitry on the same silicon backplane to allow it to receive digital images and video in a variety of formats and convert same to field sequential color signals for generation of full color images. It includes column data processors having a comparator for each block of N-columns of pixels. Image data is double-buffered in SRAM memory cells located beneath the pixel electrodes, but not within each pixel. The stored data is logically associated with each pixel via the column data processors. Image compression is accomplished by converting RGB data to a variant of YUV data and sampling the color components of the converted data less frequently than the luminance components. The SRAM image buffer consumes a reduced amount of power. A temperature compensation scheme allows the temperature of the microdisplay to be sensed and the drive voltage to the pixel electrodes to be varied in response thereto.
Public/Granted literature
- US20040263502A1 Microdisplay and interface on single chip Public/Granted day:2004-12-30
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