A high frame rate, true color and high resolution projection display method

A technology of projection display and true color, which is applied in the direction of using projection device, image reproducer, optics, instrument, etc., and can solve the problems of pulse number grayscale modulation that cannot be used to switch, affect the frame rate, affect the dynamic display effect, etc.

Inactive Publication Date: 2008-07-09
ZHEJIANG UNIV
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Problems solved by technology

When the switching speed of the spatial light modulator is relatively slow compared to the application, we cannot use the pulse number of the switch for grayscale modulation, otherwise it will affect the frame rate and affect the effect of dynamic display
In the case that the response speed and resolution of MEMs devices are limited by technology, process and other conditions, and cannot achieve a large leap, the device itself limits its application expansion

Method used

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  • A high frame rate, true color and high resolution projection display method
  • A high frame rate, true color and high resolution projection display method
  • A high frame rate, true color and high resolution projection display method

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Embodiment Construction

[0019] Utilize a plurality of projection displays with image generators of light intensity binarization characteristic type, and make their images completely superimpose on the on the projection screen (3), and make the light intensity of each projector reach the target area carry out optical encoding according to the power of 2, forming a n grayscale image (n is the number of projection systems). The schematic diagram of the principle structure diagram of the basic projection display system is shown in Figure 1.

[0020] Monochrome multi-grayscale implementation. Utilizing the system principle, in Figure 1, 2-1 to 2-8 are semi-transparent and semi-reflective beam splitters, and projectors 1-1 to 1-8 are switching characteristic spatial light modulators (DMD) as the projection of the display device system, the projection system only uses a monochrome projection display system (black and white display system) composed of a light intensity binarized spatial light modulator, th...

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Abstract

The invention discloses a novel projection display method which has high-frame rate, true color and high resolution. The novel projection display method takes advantage of binary-conversion feature of a high-frame rate and high resolution projection display system to lead the images of a plurality of projectors to be overlapped and carry out binary coding through light intensity and realize enlarging gray level on the basis of not lowering the frame rate of a single projector to achieve the true-color, high-frame rate and high-resolution projection display. The binary coding is the binary coding of light intensity of projector images, which not only can realize true color projection display but also can be extended to realize ultrahigh-frame rate and colorful projection display with higher chromatic number or gray level. The method of bit-combination colorized projection display provided by the invention can be used in DMD high-speed projection display with 8000Hz frame rate and gray binary system, the experiment testifies that an 8000Hz true-color and high-resolution projection display system can be formed as long as 8 projectors with the frame rate are utilized together.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic display, especially photoelectric projection display, three-dimensional display, volumetric three-dimensional display and high frame rate display, liquid crystal display on silicon, digital micromirror display and other application occasions. The purpose is to change the color projector with only bright and dark states at the highest frame rate into a binary digital gray scale or true color projection display system through optical coding. Background technique [0002] An important trend in the development of modern 3D display technology is true 3D display, and true 3D display represented by volumetric 3D display has become the mainstream of development. In volumetric 3D display, at least 8,000 to 10,000 frames of images are required per second, that is, a high-frame-rate, high-resolution display is required, because 3D space display requires a large amount of volume data, so the current hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G03B21/00
Inventor 李海峰刘旭姜文锋
Owner ZHEJIANG UNIV
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