KR20080006708U - Imaging device of concave face - Google Patents

Abstract

The present invention relates to a concave image display apparatus.

The concave image display device of the present invention is composed of an image display panel which displays an image on the front surface and has a concave shape on the inside of the front surface, and the image display panel may be configured by bending a flexible film.

According to the present invention, an image display device such as a monitor or a television has a concave shape inward, so that the outside of the screen and the center of the screen are located at the same distance as the user's eyes, thereby increasing the size of each unit pixel constituting the screen. From the user's point of view, the outside and the center can all be seen to be the same size, and occupy less space on the left and right or top and bottom than the flat image display panel, and in the case of having the same viewing angle, the panel is actually compared to the flat image display panel. The size may be small, and an image display apparatus having a viewing angle of 180 degrees or more that cannot be realized in a flat image display panel may be implemented.

Image display device, concave, flexible, unit pixel, viewing angle

Description

Recessed image display device {IMAGING DEVICE OF CONCAVE FACE}

1 is a perspective view showing a conventional image display apparatus.

2 to 4 are perspective views showing one example of the concave image display device of the present invention.

Fig. 5 is a schematic diagram showing the difference between the occupied lengths of the image display device of the present invention and the conventional flat image display device.

6 is a schematic view showing a state displayed on a plane when the unit pixel of the inventive image display device is projected on the plane;

Fig. 7 is a schematic diagram of an improved flat type image display device showing a resizing state on a plane so that each unit pixel of the image display device of the present invention is shown to a user with a constant width.

8 is a schematic view showing a state in which a curvature control device is additionally configured in the inventive image display device.

9 is a schematic diagram comparing sizes according to viewing angles of the inventive image display apparatus and the flat type image display apparatus.

Fig. 10 is a schematic diagram explaining the actual size of pixels of a flat image display device compared with an effective size seen by a user.

11 is a schematic diagram illustrating that the actual size of the pixel of the present invention is the same as the effective size seen by the user.

<Detailed Description of Major Symbols in Drawing>

10: image display unit 20: case

a: width difference b, b1, b2: viewing angle

d: distance between user and image display device

L100a, L100b: length of image display device

c1, c2, c3: unit pixel size e1, e2, e3: effective pixel size

100, 100a, 100b: image display panel 101: plane

110: pixel size `111: plane pixel size

200: frame 300: curvature control device

The present invention relates to a concave image display apparatus.

The image display apparatus refers to a device installed in various devices such as an LCD monitor, a CRT monitor, a television, a display window of a mobile phone, a display window of a digital calendar, and the like to display an image.

Televisions, a representative example of such an image display device, have been displayed by a vacuum tube method in the past, and thus the screen has taken out a convex shape. Therefore, the outer portion of the screen had a screen distortion that appeared smaller in size than the center.

Meanwhile, thanks to the development of LCD, PDP and the like, recent monitors and wide televisions are characterized by being composed of an image display unit 10 of a flat panel and a case 20 on the outer side thereof, as shown in FIG. It will look the same in and will be free from distortion.

Meanwhile, since the 1990s, televisions and wide visions with large screens have emerged, which allows users to view larger and wider screens.

Especially, in the case of wide monitors, the distance between users and the monitor screen is only 40 to 50 cm, but the width increases to 60 cm, 80 cm, etc., so that the user is smaller than the actual size when looking outside the center of the monitor. There was a visible problem.

In addition, in the case of a wide TV installed in the living room, the distance between the television and the user is only a few meters, causing inconveniences when looking outside the TV screen.

In addition, in the case of the TV and the monitor as described above, the distance between the center of the screen and the outside of the screen is different from the user's eyes, there is a problem that the user's eyes easily tired.

The concave image display device of the present invention is intended to solve such a problem. The concave image display device has a concave shape inside the image display device such as a monitor or a television so that the outside of the screen and the center of the screen are located at the same distance from the user's eyes. The goal is to make the outside feel and the center feel the same.

In addition, the distance between the outside and the center of the screen from the user's eyes is also different, the purpose is to alleviate the eye fatigue caused by frequently changing the focus of the eye.

In addition, there is also an object of taking the shape of the image display panel concave inward so as to occupy less space on the left and right or up and down than the flat wide image display panel.

In particular, although the image display panel is configured by bending a flexible film, it is also possible to adjust the optimum curvature radius of the screen according to the distance between the user and the screen, so that the user can use at any distance.

The present invention relates to a concave image display apparatus.

In the concave image display device of the present invention, the image display device such as a monitor or a television has a concave shape inwardly so that the user can have both the outside of the screen and the center of the screen at the same distance as the user's eyes. The same feeling can be obtained and eye fatigue can be much reduced as compared with the conventional flat image display apparatus.

In addition, the concave shape of the image display panel can be made to occupy less space on the left and right or upper and lower sides than the flat wide image display panel.

In particular, the image display panel is configured to have a flexible curvature radius of the flexible film, and to adjust the optimal curvature radius of the screen according to the distance between the user and the screen, so that each unit constituting the screen at any distance When the size of the pixel is viewed from the user's point of view, the outside and the center can all look the same size.

To this end, the concave image display apparatus of the present invention is configured to include an image display panel in which an image is displayed on the front surface and has a concave shape inside the front surface.

In this case, it is preferable that the image display panel is configured by bending a flexible film.

However, if the user can not bend arbitrarily, such as LCD (LCD) or plasma (PDP) type image display devices which are widely commercialized at present, it is preferable to have a radius of curvature to suit an appropriate use distance.

In particular, when the image display panel is formed in a flat state, the length of the unit pixel is gradually increased toward the outer portion so that the size of the unit pixel as viewed from the user's point of view, that is, the effective size of the unit pixel is configured to be the same. It is preferable.

Prior to the description of the invention, the terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors are construed to explain their own design in the best way possible. Based on the principle that the concept can be properly defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical ideas of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, the concave image display device of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a conventional flat image display device composed of an image display unit 10 and a case 20.

2 to 4 show examples of the concave image display device of the present invention.

In the case of FIG. 2, the image display panel 100 is provided at the center, and the image display panel 100 has a concave shape to the left and right toward the front inner side.

In addition, it can be seen that the flat frame 200 is installed on the outside.

Meanwhile, in the case of FIG. 3, the image display panel 100 and the frame 200 are concave to the left and right together.

In addition, the case of FIG. 4 shows the example which took concave shape not only right and left but also up and down.

Meanwhile, although not shown, the present invention may be configured as an image display panel 100 concave only in the vertical direction, which is the same as that of FIGS. 2 to 3.

FIG. 5 illustrates the difference between the image display device of the present invention and the conventional image display device configured as described above. As shown in the drawing, it can be seen that the two image display devices have a left and right width difference (a) when viewed from the front. have.

That is, the image display device of the present invention is easier to install in a narrow space to the left and right than the conventional image display device.

The image display panel 100 of the present invention can be concave in various ways.

Substrates such as glass may be manufactured in an arc shape and concave, or a flexible image display panel 100 may be used.

However, when the image display panel 100 is concave as described above, it is preferable that the unit pixels constituting the screen appear at regular intervals and sizes up, down, left, right, up, down, left, and right when the user views the image display panel 100. In order to do so, it is preferable to configure the image display panel 100 to have a suitable radius of use, that is, a radius of curvature suitable for a proper distance between the user and the screen.

However, if the image display panel 100 itself is manufactured in a concave shape in the processing of the product, even if the user is a suitable use distance, there is a disadvantage that the user must optimally use only a predetermined distance.

Therefore, after forming the image display panel 100 in a flexible form rather than forming the image display panel 100 in a concave shape from the beginning, it is possible to adjust the image display panel 100 to have an optimum curvature radius according to the distance of the user. It is desirable to.

However, when the image display panel 100 cannot be formed concavely or in a flexible form, the pixel size and spacing of the flat image display device are gradually increased from the center of the screen to the outside, so that the user's eyes It is possible to make the size of the pixel shown in FIG. I, the effective pixel size constant.

When the concave image display panel 100 having the pixel sizes 110 formed at equal intervals as shown in FIG. 6B is projected on the plane 101 as shown in FIG. The planar pixel size 111 is projected while getting larger and larger as shown in FIG.

In FIG. 10, this is schematically shown.

In the conventional flat image display apparatus, each unit pixel size (c1, c2, c3) is the same, and the unit pixel size (c1) at the center of the screen is the same as the effective pixel size (e1), but the effective pixel size toward the outside (e2, e3) becomes smaller than the unit pixel sizes c2 and c3.

Similarly, in order to implement the effective pixel sizes e1, e2, and e3 of the same size, the unit pixel sizes c1, c2, and c3 may be made larger and larger toward the outside of the screen.

As shown in FIG. 7, the unit pixel sizes c1, c2, and c3 of the planar image display panel 100a, which are improved to obtain a constant viewing angle b1 and b2, are gradually increased from the center of the screen toward the outside. desirable.

In a specific manner, a pair of substrates spaced apart from each other at regular intervals and a panel is formed by a liquid crystal or a cell gap between the two substrates. An electrode is provided on one substrate so that the liquid crystal between the substrates Responsive to change the optical properties, the distance and size of the unit pixel can be adjusted by arranging each electrode in a close arrangement in the center and a wide arrangement in the outer.

Herein, the unit pixel refers to a module in which one or several electrodes for single or multi-color display are connected to be recognized as a single point on the image display panel 100 or the improved flat panel image display panel 100a. The liquid crystal display device capable of automatic control of the aperture ratio is described in detail in Korean Patent Laid-Open Publication No. 10-2005-0067646.

In another method, according to the curvature angle of the image display panel 100 through the program stored in the control unit in a state where each electrode is closely arranged, two to three electrodes at a time react as if one to three By doing so, the unit pixels in the user's view may be adjusted to look the same.

That is, by recognizing several unit pixels as one unit pixel as in a liquid crystal display device capable of automatic control of aperture ratio for each pixel (see Japanese Patent Application Laid-Open No. 10-2005-0067646), several unit pixels on the outside are recognized as one. Is displayed.

According to the present invention, the image display panel 100 is concave so that the screen recognized by the user can be evenly arranged.

On the other hand, more innovative proposals are possible using these features.

Specifically, as shown in FIG. 8, one side is connected to the image display panel 100, and the other side is connected to one side of the frame 200 to control the curvature control device 300 for controlling the curvature of the image display panel 100. You can add more.

Although not shown, the curvature control device 300 may be connected to a central processing unit (CPU) of an internal or external device and controlled by a program embedded in the central processing unit, or may be manually adjusted by configuring a screw and a knob for turning the screw. have.

As such, the curvature of the image display panel 100 may be adjusted such that all pixels on the screen are at the same distance from the user according to the distance between the user and the image display panel 100.

9 compares the size of the actual panel L100a of the conventional flat image display panel 100a with the size of the actual panel of the concave image display panel 100b of the present invention. The actual sizes (L100a, L100b) of the panel and the distance (d) between the user and the screen determine the viewing angle (b), which makes the user feel how big the screen is. The actual size of the panel (L100a, L100b) can be expressed as follows.

L100a = 2d * tan (b / 2)

L100b = d * b

Here b is a value by the arcian method, and when the viewing angle is 180 degrees, b has a value of about 3.14. Tan means tangent in trigonometric functions, and * means multiplication. When the viewing angle is 180 degrees, the value of tan (b / 2) becomes infinity and L100a becomes infinity. That is, the conventional flat image display device 100 is a reason why the viewing angle is 180 degrees or more can not be implemented. On the other hand, when the viewing angle is 180 degrees, L100b is 3.14 times d, and when the distance between the user and the screen is 50cm, the viewing angle may be 180 degrees with a screen of about 150cm. In addition, it can be seen that the size of the concave image display panel 100b of the present invention may be smaller than that of the conventional planar image display panel 100a as it can be seen that L100b < L100a always have the same viewing angle.

As shown in Fig. 11, since any position of the image display panel has the same distance from the user's eyes, the central unit pixel size c1 is the same as the effective pixel size e1 as seen by the user, The unit pixel sizes c2 and c3 are also the same as the effective pixel sizes e2 and c3 viewed by the user. That is, there is a relationship where c1 = c2 = c3 = e1 = e2 = e3.

At any position of the screen in the image display apparatus 100 of the present invention, the actual pixel size and the effective size visible to the user's eyes become the same.

According to the present invention, an image display device such as a monitor or a television has a concave shape inward, so that the user can have both the outside of the screen and the center of the screen at the same distance as the user's eyes, so that both the outside of the screen and the center can feel the same. . In other words, when the size of each unit pixel constituting the screen is viewed from the user's point of view, the outside and the center may appear to be the same size.

In addition, in the conventional flat image display apparatus, since the distance between the center and the outer portion of the screen is different from the user, the eyes are easily tired, but the eye fatigue can be reduced by the present invention.

In addition, the concave shape of the image display panel can be made to occupy less space on the left and right or upper and lower sides than the flat image display panel.

In addition, when the same viewing angle has the same size, the size of the image display panel can be reduced, and an image display panel having a viewing angle of 180 degrees or more that cannot be realized in the conventional flat image display panel can be implemented.

In particular, when the image display panel is configured by bending a flexible film, the user can adjust the degree of bending of the image display panel to suit the distance to the image display panel.

Claims (3)

In the image display apparatus, And an image display panel 100 configured to display an image on the front surface and have a concave shape on the inside of the front surface. Concave image display device. The method of claim 1, The image display panel 100 is characterized in that the flexible film is configured bent, Concave image display device. The method of claim 2, And a curvature control device (300) configured to control the curvature of the image display panel (100).

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