JPS62143575A - image display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses an IA, particularly a liquid crystal display, for image display in an image display device, and uses an IA system, particularly a liquid crystal display, to display an image, and uses an in-interlace video signal that appears to be an interlaced video signal of a television. The present invention relates to an image display device that displays an image.

[Summary of the invention]

The present invention provides an image display device for displaying television images.
The vertical direction of the image display body is 400iI.
I! I1 or more, transfer image 11 (1H (horizontal image period) of 11 (horizontal image period) in 6 fields of TV to 2 lines of series fj6 of image symbol, and shift 1 line at a time between odd and even fields. Provided is an image display device that displays an apparently interlaced image using a slow running signal of the inclace method of a television, which improves the resolution in the vertical direction by displaying the image. The purpose is to

[Conventional technology]

For example, devices that display television images on liquid crystal displays have recently become commercially available. In these devices, one screen consists of one field of a television interlaced signal (in Japan, one field has 26x5 scanning lines). Therefore, unlike a cathode ray tube type image display device in which one screen is composed of two fields (=one frame), the number of scanning lines in the vertical direction is approximately A or V4 of a cathode ray tube. For other examples, see the bibliography Koroyuki.
Others include "Commercialized LCD Pocket Color TV",
Nikkei Electronics, September 10, 19811, P2
11 to 240, and for V4 examples, % Kaisho 60-
120677, which discloses each technology.

[Problems to be Solved by the Invention and Objective 1] However, in the method described above in which one screen is displayed in one field, the number of scanning lines in one direction is smaller than that of a cathode ray tube. will be low. For example, the 21st Δ(C
), in the conventional example, the in IM ly in the vertical direction is 1A compared to the cathode ray tube, and the outline of the image is not very smooth.

In view of the above-mentioned drawbacks of the conventional technology, the present invention provides II! , Kakeage, and Increase images are displayed to increase the resolution in four directions, as well as to create images with smooth contours.
The purpose is to provide the following information.

[Solving problems/Komeno J Dan]

The problems with the rice polishing technique mentioned above! -#! In order to decide
In the present invention, (1) a) The number of pixels in the vertical direction is 400111Id
As described above, in an image display device having an image display body in which pixels are arranged in a matrix, b) In an odd field of a television image signal, the horizontal image period of the n-th (n=j, 12.) Picture IN
'l# in, +i! 2m line 1'' and 2nd m + 1st line (m = 1, 2, -) 6
C) In the even field of the television image signal, the image information of the n-th horizontal image period is transferred to the 2m-1th line and the 2m-th line of the previous image display body. characterized by having means for transferring to the un-A group in the row,
(2) a) The image display body is an image display body in which red, green, and blue pixels are alternately and repeatedly arranged without pixels of the same color in the vertical direction of the screen, and b) in the horizontal direction. When transferring the artist information of the image period to the two rows of water 'F iu+i A group in which the image display body is located, the color pixels of each row are given an x11 ratio, and means for sending the color information of the image to 11. It is characterized by having the following.

[Effect]

In the above configuration, by shifting the 111 minutes of the television image signal by one line in odd and even fields and transmitting it to two lines of picture points, the vertical solution is 1.
1 (a bold image display device can be realized).Also, in a color image display device, when transferring 1H of image signals to two rows of pixel groups, the Since the color information of the image is transferred, an image-5=display device with high resolution in the vertical direction can be realized as well.

[Stylistic implementation sequence]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a diagram illustrating one configuration of a picture-one clothing display device according to the present invention. Reference numeral 101 is a /ftresine, which sends the video signal to each memory 102, 106, 104, horizontal image of the body, g.
Therefore, a write signal is provided for the transfer. J02 and 103 are the shift registers 101, and the memory to be driven is an image that changes every 1H as shown in Figure 3. Store (sample/hold). Memory 102
and memory 102 whose outputs are both 1)! ! connected n
104 display (4) shows the Ei 1 zone number data D, D.
,... are paid t, R.

105 is a line adjustment signal output circuit, and 104 is a pulse SI for selecting one of the row directions of the display body.

Sl ・82ml l+ s, m, s, m+1 + −
'l Output.

Two selection pulses are output to IH as shown in Figure 6.

In Figure 6, the left side is the timing at #-Ei field,
The right side shows the timing for an even field. In an odd field, the image information of the nth horizontal image period is 1
05 line selection (output pulses 81 m and S z m +1 from the S'4 output IIJ path are transferred to the pixel groups of the 2mth row [1 and the 2m+1th row 11 in the display body 105. The image information of the n-th horizontal image period is transmitted to the display body 10 by output pulses 531111 and 82m from the line selection signal output circuit 105.
5, it is transferred to the pixel group of the 2m-1th row, xr, and the 2mth row. (Refer to Figure 4.) By the above operations, Figure 2 (
An image display device 4 having a higher resolution in the vertical direction can be realized compared to the case where a conventional image display device is displayed as an artist as shown in b) (FIG. 2()). Here, nodd indicates the scanning line of the odd field, and neVen indicates the scanning line of the even field.

Next, the case of color display will be explained. 50 in g5 diagram
1 is R (亦), G (Green), B (Iku) color video signal.
This is a color signal selection and supply circuit that selectively supplies a color signal to memory 1 and memory 2 for each H. 102 is common to the memory 1 in FIG. Its circuit configuration consists of an analog switch T (T is opened and closed by the output signal from the shift register 101), one end of which is connected to the color video signal line supplied from the 501 color No. 1g selection supply circuit, and one end of which is connected to the capacitor 14c. ), and Banfa amplifier B connected to T (B is the output enable signal O
K enables output. ) as many sample and hold circuits as there are pixels in the horizontal direction of the display 104. Memory 2 also has a similar configuration.

The analog switch T is sequentially connected to three color video signals supplied from the color signal selection and supply circuit 501.

As shown in FIG. 4, in a display body 401 in which color pixels are arranged in a mosaic pattern, the n-th video information in an odd field is transferred to the 2mth row and the 2m+1th row of the display body 401. Since the color pixels at the top and bottom of each row are different, 5
01 color (from r1 column selection supply circuit to memory 1 and memory 2)
The color film gap signal supplied to the second m'fz and 'J@2
R, G, and B are combined and supplied by 1tlL so that the first color pixels of row m-t-1 are G and B. Its 几, O, U and color projection It (tll combination with No. 4 is 1H
I am involved in each case.

〔effect〕

As explained above, according to the present invention, the image information of the n-th scanning line of the odd field and even field of the television image signal is transmitted to the display body having 400 pixels or more in the vertical direction. By transferring the image in two lines, with each field shifted by one line, it is possible to obtain an image display device with increased resolution in the vertical direction of the image.

[Brief explanation of drawings]

Fig. 1: Configuration diagram of an image display device according to the present invention.
°-・ -i Misanfu system figure 2...Image display diagram on the image display device
... Timing chart diagram of the image display device according to the present invention Fig. 4... Furl diagram of image signal transfer = 9- Fig. 5... Memory configuration diagram 0 Above Fig. 1 Miss Sji:・Nikacho 1 (Ku No. 4 □Rain Sef, -Rudo□- Survival

Claims (2)

[Claims] (1) a) In an image display device having an image display body in which the number of pixels in the vertical direction is 400 or more and the pixels are arranged in a matrix, b) In an odd field of a television image signal, the nth (n =1, 2,...) horizontal image period image information,
The 2mth row and the 2m+1st row (m=1) of the image display body
, 2, . An image display device characterized by having means for transmitting data to a 2mth row pixel group. (2) a) The image display body is an image display body in which red, green, and blue pixels are arranged alternately and repeatedly without adjacent pixels of the same color in the vertical direction of the screen, and b) in the horizontal direction. A patent claim characterized in that when image information of an image period is transferred to a horizontal pixel group of two rows of the image display body, means is provided for transferring image color information corresponding to color pixels of each row. Image display device according to item 1 within the scope of