Unlock instant, AI-driven research and patent intelligence for your innovation.

Digital display device and display method thereof

A technology of digital display and display method, applied in identification devices, static indicators, instruments, etc., can solve the problems of different lighting states, insufficient detection omission, insufficient noise disposal, etc., to achieve the effect of eliminating the suspected outline of animation

Inactive Publication Date: 2007-04-11
FUJITSU HITACHI PLASMA DISPLAY LTD
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the adjacent pixel areas of p1 and p6, when p6 is viewed from the front and when viewed obliquely as shown by the line of sight, the overlapping SF lighting states are different, so animation pseudo-outlines occur.
[0011] As mentioned above, using existing techniques to detect the region where the animated suspected outline occurs has the possibility of insufficient detection omission
That is, there is a problem of insufficient handling of noise
[0012] In addition, according to the existing method, when the pixel region in which the pseudo-moving outline occurs can be accurately detected, there is also a problem that when the amount of motion of the pixel region increases, it is widely observed that due to the Animated suspected outlines or similar noisy areas caused by residual images

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital display device and display method thereof
  • Digital display device and display method thereof
  • Digital display device and display method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0054] First, the basic technical configuration will be described below. In FIG. 1, the PDP device 1 includes: a display control and drive circuit unit 2; a panel (PDP) 160, and the like. A display control and driving circuit section (hereinafter referred to as a circuit section) 2 is connected to the panel 160 . The circuit unit 2 includes: a control circuit (controller) portion of the entire device; and a display drive circuit (driver) portion.

[0055] The hardware configuration of the PDP device 1 includes, for example, a PDP module in which ICs such as circuits are mounted on the back side of the chassis by bonding panel 160 to the chassis (not shown), or a power supply circuit (not shown). The ends of the panel 160 are connected by a drive module (a module in which a driver IC or the like is mounted on a flexible substrate) corresponding to the driver circuit section. The PDP module configured in this way is accommodated in the outer casing to form a PDP device unit. ...

Embodiment approach 2

[0095] Embodiment 2 will be described below. FIG. 16 shows the configuration of a PDP apparatus 1b according to Embodiment 2 of the present invention. The difference between the second embodiment and the first embodiment is that a dither part 80 is provided in the circuit part 2b, and a dither part 80 is inserted between the first error diffusion part 30 and the judgment and switching part 101. The contour detection unit 50 and the determination and switching unit 100 are replaced by another suspected contour detection unit 501 and the determination and switching unit 101 . The judging and switching unit 100 in Embodiment 1 selects the output signal of the code conversion unit 90 for the pseudo-moving contour detection area, but in Embodiment 2, the judging and switching circuit 101 switches to select the code converting unit 90 for the pseudo-moving contour detection region. Either the output signal of 90 or the output signal of dither unit 80 .

[0096] FIG. 17 shows a bloc...

Embodiment approach 3

[0103] Embodiment 3 will be described below. FIG. 19 shows the configuration of a PDP apparatus 1c according to Embodiment 3 of the present invention. The difference between the third embodiment and the second embodiment is that in the circuit unit 2c, the exercise amount information (d2) obtained as a result of the exercise detection unit 40 is input to the determination and switching unit 102 for use.

[0104] In Embodiment 3, the output signal (d2) of the motion detection part 40 is input into the judgment and switching part 102, and it controls according to the generation|occurence|state of an animation pseudo-contour. The judging and switching unit 102 switches the output of the dithering unit 80 and the limit of the number of real gray levels in the target pixel region according to the amount of motion based on the motion amount information (d2) and the output signal (d6) of the pseudo-contour detection portion 501. The output of the processing unit 170. The judging and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In a display method of a PDP apparatus or the like, there is provided a technique for reducing or eliminating dynamic false contours in a display video image by determining and detecting an occurrence region of dynamic false contours in display data with good accuracy for coping. In a false-contour detection unit in a PDP apparatus, a carry detection unit detects, as a dynamic-false-contour occurrence region, a pixel region corresponding to carry in an SF on-cell pattern of adjacent pixels based on a video image signal in view of a predetermined condition. In a width control unit, a detection region is expanded according to a motion amount. A detection region is expanded according to a motion amount in a width control unit. A diffusion processing (actual gray-scale number restriction processing) based on dither or error diffusion is performed to the detection region. A detection condition of the carry is that an on-cell state of an SF with higher weighting is different between the adjacent gray scales sandwiching the carried gray scale therebetween.

Description

technical field [0001] The present invention relates to a digital display device such as a plasma display device (PDP device) and a display method technology, in particular to a method for displaying gray levels using a sub-field method. A technology that processes noise such as contours or image quality deterioration. Background technique [0002] In a digital display device such as a PDP device that controls pixel display on a display panel based on a digital signal of display data, an image (moving image) is displayed using a known sub-field method. With the grayscale display using the subfield method, there is a problem of noise called pseudo-contouring. [0003] In the subfield method of the PDP apparatus, one field corresponding to an image (frame) of a display panel screen is composed of a plurality of weighted subfields (abbreviated as SF), for example, 10 SFs (SF1 to SF10). Gradation is represented by a combination (SF lighting pattern) of light emission (lighting...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313
CPCG09G3/2051G09G2320/103G09G2320/0266G09G3/2059G09G3/288G09G2320/0261G09G2320/0271
Inventor 竹内正宪千秋丰木村雄一郎
Owner FUJITSU HITACHI PLASMA DISPLAY LTD