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Moving image display device and method

A dynamic image and display device technology, which is applied in image communication, static indicators, cathode ray tube indicators, etc., can solve the problems of unsmooth image display, difficulty in improving the display speed of dynamic images, and increased costs, so as to suppress dynamic images Effects of flickering, smooth dynamic screen display, and reduction of memory capacity

Inactive Publication Date: 2007-05-02
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned conventional technology, since a new intermediate frame needs to be generated from two frame images, the calculation processing is huge, and it is difficult to increase the display speed of the dynamic picture.
In addition, to generate a new intermediate frame, it is necessary to ensure a large frame memory capacity, which is the main cause of cost increase
In addition, when the display method is switched between a moving image and a still image, there may be a case where a virtual image appears when the display method is switched, and the image may not be displayed smoothly.

Method used

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  • Moving image display device and method

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Embodiment 1

[0031] (A-1) Hardware composition of the projector:

[0032] (A-2) The composition and operation of the intermediate frame generation circuit:

[0033] (A-3) Effect:

Embodiment 2

[0035] C. Variations:

[0036] A. Embodiment 1:

[0037] (A-1) Hardware composition of the projector:

[0038] FIG. 1 is a block diagram showing a hardware configuration of a projector 100 as an embodiment of the moving image display device of the present application. This projector 100 has a function of displaying a moving image at least twice the frame rate of the original moving image. A specific configuration for displaying at twice or more the frame rate will be described in detail later.

[0039] As shown in the figure, the projector 100 of this embodiment has an image signal input circuit 110, a memory writing control circuit 120 connected to the image signal input circuit 110, and a frame memory 130 connected to the memory writing control circuit 120. , the motion vector detection circuit 150 that is connected with the frame memory 130, the intermediate frame generation circuit 140 that is connected with the frame memory 130 and the motion vector detection circuit 1...

example 1

[0084] Next, a modified example of the method of determining the luminance coefficients K2 and K3 will be described using FIGS. 8 to 10 . In this modified example, the luminance coefficient determination circuit 210 shown in FIG. 2 determines the luminance coefficients K2 and K3 according to the number n of intermediate frame images to be generated and the characteristics of the sine wave regardless of the motion vector V.

[0085] In this modified example, when the number of intermediate frame images generated by the synthesis circuit 230 is set by the CPU 190, the luminance coefficient determination circuit 210 determines the number of intermediate frame images for each intermediate frame image according to the table shown in FIG. 8 . The angle θ(rd) (0≤θ≤π) of the brightness coefficients K2 and K3 is obtained. In the table shown in FIG. 8 , values ​​obtained by dividing the interval from 0 to π by the number of intermediate frame images are defined. According to this table...

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Abstract

The invention provides a moving image display apparatus. The synthesizing circuit inputs signals representing the brightness coefficient K2 and the brightness coefficient K3 from the multiplexer, and inputs the overscanned frame image data D1 in pixel units from the first latch circuit. When the start frame image read the third time and the after frame image read the first time are input simultaneously, the synthesizing circuit calculates the brightness coefficient K2 for the brightness value of the pixels of the start frame image, and calculates the brightness coefficient K3 for the brightness value of the pixel of the after frame image. Then, it synthesizes the pixels of the start frame image and the pixels of the after frame image for which the respective brightness coefficients were calculated, and generates the intermediate frame image data D 2. As a result, it moving image flicker is suppressed using an easier method than in the past, and it is possible to realize smoother moving image display.

Description

technical field [0001] The present invention relates to a technique for displaying a moving image by continuously displaying a plurality of frame images, and specifically relates to a technique for synthesizing a plurality of frame images to generate intermediate frame images. Background technique [0002] Conventionally, for example, when displaying images on moving image display devices such as CRTs and televisions, flickering may appear on the entire screen when the refresh rate is lower than 60 Hz. However, even when a sufficient refresh rate can be ensured, when a moving image of a moving object moving on the screen is displayed, flickering may not appear on the entire screen, but only on a portion of the moving object on the screen. Such flickering is hereinafter referred to as "moving screen flickering". This phenomenon often occurs, for example, when displaying a moving image in which a person, a vehicle, an airplane, etc. move within a screen at a constant speed, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/377G02F1/133G09G3/20G09G3/36H04N5/66
CPCG09G2320/0247G09G5/397G09G5/008H04N7/014H04N21/4825H04N7/0132G09G5/399G09G2320/106G09G3/2096G09G2320/0261G09G3/20G09G3/36H04N5/66
Inventor 竹内启佐敏佐川隆博饭坂英仁稻积满广
Owner SEIKO EPSON CORP
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