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System and method for automated calibration and correction of display geometry and color

A technique for calibrating systems, display devices, used in static indicators, cathode ray tube indicators, instruments, etc., to solve problems such as incompleteness, imperceptibility, misalignment of display surfaces and optical paths

Active Publication Date: 2013-06-05
GEO SEMICONDUCTOR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Most image display devices suffer from various forms of geometric or optical distortion
These distortions have various causes such as geometrical setup, non-ideal properties of the various optical components within the system, misalignment between individual components, complex display surfaces and optical pathways, etc. incomplete
The amount of distortion varies greatly from system to system, some are subtle and some are annoying

Method used

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  • System and method for automated calibration and correction of display geometry and color
  • System and method for automated calibration and correction of display geometry and color
  • System and method for automated calibration and correction of display geometry and color

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Embodiment Construction

[0040] For simplicity and clarity of explanation, where appropriate, like numeral references have been repeated among the figures to indicate corresponding or analogous parts. Additionally, numerous specific details are given in this application in order to provide a thorough understanding of embodiments and / or implementations of the invention. However, it will be understood by those skilled in the art that the embodiments and / or implementations described herein may be practiced without these details. Furthermore, the present application does not give detailed descriptions of methods, procedures or components known in the prior art so as not to obscure the embodiments and / or implementations of the present invention. Moreover, these descriptions should not be read as limitations of the invention, but rather as descriptions of the structure and operation of various embodiments and / or implementations of the invention.

[0041] Important distortions in display devices include: di...

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Abstract

Various embodiments are described herein for a system and method for calibrating a display device to eliminate distortions due to various components such as one or more of lenses, mirrors, projection geometry, lateral chromatic aberration and color misalignment, and color and brightness non-uniformity. Calibration for distortions that vary over time is also addressed. Sensing devices coupled to processors can be used to sense display characteristics, which are then used to compute distortion data, and generate pre-compensating maps to correct for display distortions.

Description

technical field [0001] The invention relates to the calibration of display devices. Background technique [0002] Most image display devices suffer from various forms of geometric or optical distortion. These distortions have various causes such as geometrical setup, non-ideal properties of the various optical components within the system, misalignment between individual components, complex display surfaces and optical pathways, etc. incomplete. The amount of distortion varies greatly from system to system, some are subtle and some are annoying. The effect of distortion also varies from system to system, changing the color of the image, or changing the shape or geometry of the image. Contents of the invention [0003] An aspect of the present invention provides a display calibration system for a display device having a viewing surface. The display calibration system includes at least one sensing device for sensing information about at least one of a shape, size, bounda...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G09G5/02G09G5/10
Inventor 佐拉沃·S·巴锡马桑德·瓦基利
Owner GEO SEMICONDUCTOR INC