JPH0646349B2 - Large display - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a large-sized display device configured by arranging a plurality of small liquid crystal panels or EL panels connected to each other, and more specifically, to a large-sized display device that is intruded from the connected portion. The present invention relates to a large-sized display device in which the displayed light is prevented from transmitting on the display surface and the display is improved.

[Conventional technology]

Since a conventional large-sized liquid crystal display device cannot obtain a large-sized liquid crystal panel, a large-sized liquid crystal panel is obtained by arranging a plurality of small liquid crystal panels in series as described above.
It was displayed by the transmitted light from the backlight.

Further, each liquid crystal panel always has a terminal portion, which is connected with a flexible tape or the like. However, it is difficult to bring the connecting portions of the individual liquid crystal panels into close contact with each other without a gap, and there is a problem that light always passes through the gaps formed in the connecting portions and the shadow of the above-mentioned connection is reflected on the display surface.

To solve this problem, there is a technique disclosed in Japanese Patent Laid-Open No. 59-206869.

As for the contents, a light-shielding material is applied to the connecting surface of the liquid crystal panel, and a masking tape for closing the gap of the connecting portion is attached on the display surface. In this way, the transmitted light from the connecting portion was removed to obtain a good display.

[Problems to be solved by the invention]

However, in the device having the above-described configuration, the width of the masking tape between pixels and the width of the masking tape at the connecting portion are different, so that the pixel pitch changes at the connecting portion as a whole display screen, and the view of that portion deteriorates. There is a problem.

It is an object of the present invention to provide a large-sized display device which prevents the deterioration of the visual appearance in the connecting portion of the liquid crystal panel described above and has excellent display characteristics.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a large-sized display device configured by arranging a plurality of panels so as to be connected to each other, with a width that does not cover the pixels of the panel on the connection portion on the display surface side of the panel, and A light-shielding member / light-reflecting member whose surface is a mirror surface is arranged, and the light-shielding member / light-reflecting member is arranged so as to cover at least one pixel in the peripheral portion of the panel.
The optical member has a beam splitting function, which divides light incident from the panel and refracts light in the surface direction of the light shielding member / light reflecting member.

[Action]

According to the above-described means, the light transmitted through the pixels on the peripheral edge of the panel covered by the optical member having the beam splitting function is incident on the optical member. Then, this light is divided into one that is transmitted through the optical member and emitted from the surface thereof and one that is refracted in the optical member, by the beam splitting function provided to the optical member. Then, the light refracted in the optical member goes toward the surface direction of the light blocking member / light reflecting member, is reflected here, and then is emitted from the surface of the optical member.

That is, since the optical member is provided on the connecting portion, and the viewer feels that light is transmitted from that portion, the display surface can be viewed without being aware of the connecting portion.

〔Example〕

The first and second embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a main part of a liquid crystal display device showing a first embodiment of the present invention, and FIG. 2 is a side sectional view of a connecting part in FIG.

In FIGS. 1 and 2, 1 is a small liquid crystal panel, which is connected in a mosaic pattern. The portion where the liquid crystal panels 1 are in contact with each other is the connecting portion 2, and a gap is formed. Since the light is transmitted from the connecting portion 2 to the display side, the connecting portion 2 is blocked from the display side by the light shielding member / light reflecting member 3 in the shape of a cross with a triangular cross-section and a size that does not cover the pixel. ing.

The surface of the light-shielding member / light-reflecting member 3 is processed to be a mirror surface for reflecting light. For example, a metal surface is polished or a plastic material is subjected to mirror surface treatment (plating or the like). It is a thing.

Then, an optical member 4 having a beam splitting function is provided so as to cover the light shielding member / light reflecting member 3 as described above. The optical member 4 is, for example, a transparent acrylic or the like trapezoidal, and has a size that covers at least one pixel 5 in the peripheral portion of the liquid crystal panel 1. Further, the angle θ of the portion in contact with the liquid crystal panel 1 is adjusted according to the refractive index of the material used.

In FIG. 2, reference numeral 6 is a sealant provided to seal the pixel 5.

Therefore, as shown by the arrow in FIG. 2, the light transmitted through the pixel 5 is incident on the optical member 4 and is transmitted through the optical member 4 and emitted from above by the beam splitting function of the optical member 4. , Which are reflected in the optical member 4 and directed toward the surface of the light-shielding member / light-reflecting member 3.
Since the surface of the light-shielding member / light-reflecting member 3 is a mirror surface as described above, the light is reflected upward and emitted from the optical member 4 here.

Therefore, the viewer feels that the light is also transmitted from the connecting portion 2 of the liquid crystal panel 1.

In this case, the transmitted light from the pixels in the peripheral portion of the connecting portion 2 of the liquid crystal panel 1 causes mixing, so that the contrast is lowered, but since the connecting portion 2 is not noticed by the viewer, the display surface is easy to see.

Next, a second embodiment will be described.

FIG. 3 is a side sectional view of a connecting portion showing a second embodiment,
The liquid crystal panel 1 is connected in the same manner as in the first embodiment, and the connecting portion 2 thereof is provided with a light shielding member / light reflecting member 3a and an optical member 4a having a beam splitting function under the same conditions as in the first embodiment. Are arranged. However, the light-shielding member / light-reflecting member 3a and the optical member 4a have a semicircular cross section.

Also in the second embodiment configured in this way, as in the first embodiment, it is possible to make the connecting portion 2 an easy-to-see display surface that does not cause the viewer to be aware of it by the light incident on the optical member 4a from the pixel 5.

Although the liquid crystal panel has been used in the first and second embodiments, the present invention can be applied to other display systems, for example, a large-sized display device including an EL panel.

〔The invention's effect〕

As described above in detail, according to the present invention, in a large-sized display device in which a plurality of EL panels and the like are arranged so that a liquid crystal panel is connected to each other, a light-shielding material having a surface and a mirror surface is provided on a connection portion on the display surface side of the panel. Since the double-sided light reflecting member is arranged, the light-shielding member / light-reflecting member and the optical member having the beam splitting function are arranged so as to cover at least one pixel on the peripheral edge of the panel. ,
The light that is transmitted through the optical member and emitted and that is refracted in the optical member are separated, and the light refracted in the optical member goes to the surface of the light-shielding member / light-reflecting member where Is emitted.

As a result, light appears to be transmitted through the joint as in other places, and therefore the viewer can see the display without being aware of the joint of the panel. Can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a main part showing a first embodiment of the present invention, and FIG.
The drawing is a partially enlarged side sectional view, and FIG. 3 is a side sectional view showing a second embodiment. 1 ... Liquid crystal panel 2 ... Connection part 3, 3a ... Shading / light-reflecting member 4, 4a ... Optical member 5 ... Pixel 6 ... Sealant

Claims (1)

[Claims] 1. A large-sized display device constituted by arranging a plurality of panels connected to each other, wherein a light-shielding member having a width that does not cover the pixels of the panel and has a mirror surface on the connection portion on the display surface side of the panel. And a light-reflecting member disposed so as to cover the light-shielding member / light-reflecting member and at least one pixel on the peripheral edge of the panel to transmit the light incident from the panel and the surface of the light-shielding member / light-reflecting member. A large-sized display device including an optical member having a beam splitting function that divides the light into one that bends in the direction.