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Optical propagation characteristic control device and optical display device, control program and method therefor

A technology of propagation characteristics and optical display, applied in nonlinear optics, optics, projection devices, etc., can solve problems such as degradation and time increase

Inactive Publication Date: 2008-01-09
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a problem that image quality deteriorates depending on the method of determining T1 and T2
[0019] On the other hand, in the invention described in Patent Document 2, since the number of grayscale levels corresponding to the number of grayscale levels of the backlight is held, there is a problem that if the number of grayscale levels of the backlight is increased, the The problem that the size of the gray scale table and the time required to generate the gray scale table will increase at the same time

Method used

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  • Optical propagation characteristic control device and optical display device, control program and method therefor
  • Optical propagation characteristic control device and optical display device, control program and method therefor
  • Optical propagation characteristic control device and optical display device, control program and method therefor

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Embodiment Construction

[0173] Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 17 show embodiments of a light propagation characteristic control device, an optical display device, a light propagation characteristic control program, an optical display device control program, a light propagation characteristic control method, and an optical display device control method of the present invention.

[0174] In this embodiment, as shown in FIG. 1, the light propagation characteristic control device, the optical display device, the light propagation characteristic control program, the optical display device control program, the light propagation characteristic control method and the control method of the optical display device of the present invention are used for In the projection display device 100 .

[0175] First, the configuration of the projection display device 100 will be described with reference to FIG. 1 .

[0176] The block diagram of FIG....

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Abstract

The invention is aimed to provide an optical propagation characteristic controller which improves image quality by extending a luminance dynamic range and the number of gray scales, and is suitable to reduce a table size and a generation time. A projection type display device 100 temporarily determines transmissivity T2 of each pixel of a color modulation light valve based upon HDR display data, determines transmissivity T1 of each pixel of a luminance modulation light valve based upon the temporarily determined transmissivity T2 and HDR display data, and determines a control value of each pixel of the luminance modulation light valve based upon the determined transmissivity T1. Based upon the determined transmissivity T1 and HDR display data, transmissivity T2 of each pixel of the color modulation light valve is determined and based upon the determined transmissivity T2, a control value of each pixel of the color modulation light valve is determined.

Description

technical field [0001] The present invention relates to a device, a program and a method for controlling the light propagation characteristics of an optical system that modulates light from a light source through a plurality of light modulating elements, and in particular to a method for realizing the expansion of the luminance dynamic range and the number of gray levels, and improving the image quality. A light propagation characteristic control device, an optical display device, a light propagation characteristic control program and an optical display device control program, and a light propagation characteristic control method and a control method of the optical display device suitable in terms of reducing the size of the table and generation time while reducing the table size. Background technique [0002] In recent years, the image quality of optical display devices such as LCD (Liquid Crystal Display), EL, Plasma Display, CRT (Cathode Ray Tube), projector, etc. Human v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/31H04N9/69G09G3/20G02F1/13G02B26/00G02F1/03G02F1/133G02F1/1335G03B21/00G09G3/34G09G3/36
CPCH04N9/3197G09G2320/066H04N9/3179G09G3/20H04N9/3126H04N9/69
Inventor 旭常盛中村旬一内山正一新田隆志
Owner SEIKO EPSON CORP