JPH05108036A - Display device - Google Patents

Abstract

PURPOSE:To easily make the display device large in size and inexpensive although the display device has high resolution by consisting of the device of plural display areas which differ in resolution and increasing the resolution toward the center part. CONSTITUTION:The display device 1 is divided equally and vertically into five; and the center display area 1a has the highest resolution, the display areas 1b above and below it have 2nd high resolution, and the uppermost and lowermost display areas have the lowest resolution. Display data from a CPU 2 are written in display memories 5a-5c corresponding to the display areas 1a-1 of the display device 1 by a CPU 4, and they are read out and supplied by drivers 6a-6c to the respective display areas 1a-1c, where the data are displayed. Namely, when the display device 1 is viewed, the center part of the display screen is easily seen, so the display areas which are closer to the center part are made higher in resolution, so that the visual resolution of the display device 1 does not decrease so much even when the resolution is decreased with the distance from the center part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device suitable for application to a liquid crystal display device, an electroluminescence display device, a plasma display device and the like.

[0002]

2. Description of the Related Art A conventional display device of this type has a uniform resolution over the entire surface.

[0003]

Therefore, in the conventional display device, the display area is limited when trying to obtain a high resolution display device, and the display area is limited when trying to obtain a high resolution display device. If they are the same, of course, they will be more expensive than those with medium and low resolutions.

In view of the above point, the present invention is to propose a display device which can be easily made large even with high resolution and which is relatively inexpensive for high resolution.

[0005]

The display device according to the present invention comprises a plurality of display areas 1a, 1b having different resolutions.
1c. As a result, it is possible to set a desired area of the plurality of display areas to a desired high resolution and lower the resolution of the other display areas.

The present invention further includes a plurality of display areas 1a,
As for 1b and 1c, the resolution becomes higher toward the center. When a human looks at a display device, his or her line of sight is likely to reach the center of the display surface.Therefore, by setting the resolution to a desired higher resolution in a display area closer to the center, the resolution increases as the distance from the center increases. The decrease does not significantly reduce the visual resolution of the display device.

[0007]

Embodiments of the present invention will be described in detail below with reference to FIG. In this example, for example, the liquid crystal display device 1 is vertically divided into five equal parts, and the display region 1a at the center has the highest resolution (high resolution) among the display regions of each strip shape, and the display regions 1b above and below it. 1b has the next highest resolution (medium resolution), and the top and bottom display areas 1c, 1c
Has the lowest resolution (low resolution).

Reference numeral 2 is a CPU (microcomputer) 2 as a display data source, and the display data from this is CP
Written into memory 3 controlled by U4. The display data stored in the memory 3 is stored in the display areas 1a, 1b, 1b, 1 of the display device 1 by the CPU 4.
It is distributed and written in the display memories 5a, 5b, 5c corresponding to c, 1c. Then, the memories 5a and 5
After the display data stored in b and 5c are read out and supplied to D / A converters (not shown) and converted into analog signals, the display drivers 6a and 6a are respectively supplied.
b, 6c, and each of the display regions 1a, 1b, 1c of the display device 1 is supplied to the signal electrodes intersecting with the scan electrodes, and displayed on the display device 1.

Next, another embodiment of the present invention will be described with reference to FIG. The display device 1 in this case is composed of a high-resolution display area 1a at the center thereof, a rectangular annular medium-resolution display area 1b, and an outermost rectangular annular low-resolution display area 14c. To be done. Since the circuit configuration is the same as that of FIG. 2, the illustration and description thereof are omitted.

Next, another embodiment of the present invention will be described with reference to FIG. In the embodiment in this case, two small liquid crystal display devices 1 as shown in FIG. 1 or 2 are provided on or near the human head, and the display light from the display device 1 is reflected by the reflecting mirror 8. The optical path of the display light is made to make a U-turn through the lens 9 and the reflecting mirror 10, and it is focused so as to be incident on both eyes 11 of the human and projected so as to focus on each retina thereof. Then, the stereoscopic image signals whose patterns are deviated from each other are supplied to the respective display devices 1 corresponding to both eyes 11 to enable the stereoscopic image reproduction.

[0011]

According to the present invention described above, it is possible to easily obtain a large-sized display device even with a high resolution, and it is possible to obtain a relatively inexpensive display device for a high resolution.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing another embodiment.

FIG. 3 is a layout drawing showing still another embodiment.

[Explanation of symbols]

 1 Display Device 1a Display Area 1b Display Area 1c Display Area 2 CPU 3 Memory 4 CPU 5a Memory 5b Memory 5c Memory 6a Display Driver 6b Display Driver 6c Display Driver

Claims (2)

[Claims] 1. A display device comprising a plurality of display areas having different resolutions. 2. The display device according to claim 1, wherein the plurality of display areas have a higher resolution as they are closer to the central portion.