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Display control circuit and projector apparatus

A technology of display control and light modulation device, applied in electrical components, optics, instruments, etc., can solve problems such as crosstalk, and achieve the effect of power consumption suppression

Inactive Publication Date: 2013-01-02
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, crosstalk occurs at the moment when the right and left images are switched

Method used

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  • Display control circuit and projector apparatus
  • Display control circuit and projector apparatus
  • Display control circuit and projector apparatus

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Hereinafter, embodiments of the present invention (hereinafter referred to as examples) will be described. Description will be given in the following order.

[0028] 1. Embodiment (controlling light source brightness: example of increasing light source current in a stepwise manner according to lens opening)

[0029] 2. Modify the embodiment

[0030]

[0031] [Example of increasing light source current in a stepwise manner according to lens opening]

[0032] In the following, reference will be made to Figures 1 to 8A Through 8C illustrate embodiments of the present invention. In this embodiment, an example (hereinafter referred to as "this example") in which the present invention is applied to a 3D display system 10 including projecting right and left images on a screen 13 in a time-division manner will be described. Device 1, and shutter glasses 21.

[0033] figure 1 An example of the internal configuration of the 3D display system 10 is shown.

[0034] fig...

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PUM

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Abstract

The invention relates to a display control circuit and a projector apparatus. The display control circuit includes: a device drive unit writing left and right images alternately into a light modulation device in time division based on time-division display type stereoscopic image data including the left and right images; a shutter glass drive unit driving opening and closing of liquid crystal shutters in the shutter glasses; a light source drive unit maintaining the total sum of light source current to be constant over cycles when an opening and closing period of the liquid crystal shutters is taken as one cycle; and a control unit controlling the timing of opening and closing the liquid crystal shutters with respect to the shutter glass drive unit, the timing of writing the left and right images with respect to the device drive unit and the luminance level of the light source in the opening and closing period with respect to the light source drive unit.

Description

technical field [0001] The present invention relates to a display control circuit and a projection device suitable for use, for example, when displaying 3D images in a time-division manner. Background technique [0002] There is a technique of generating a stereoscopic image (hereinafter referred to as "3D image") in which stereoscopic vision can be realized by a user using images captured by two cameras of the same object, which are set to correspond to the user's right eye and Parallax between the left eye. The images acquired by the two cameras are referred to as "left image" for the left eye and "right image" for the right eye (hereinafter, the right image and the left image may be collectively referred to as "right and left images"). [0003] As display devices through which a user can view 3D images, there are 3D display devices and projection devices that project images on a screen. These display devices alternately display right and left images in a time-division m...

Claims

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Application Information

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IPC IPC(8): H04N13/00G02B27/22
CPCG02B27/22G02B27/2264H04N13/0459H04N13/00H04N13/0497H04N13/0438H04N13/341H04N13/363H04N13/398G02B30/24
Inventor 汤野智己
Owner SONY CORP