JPH01302222A - Liquid crystal display device - Google Patents

Abstract

PURPOSE:To make the space between the liquid crystal devices inconspicuous, in case that plural numbers of the liquid crystal devices are arranged so as to constitute a large screen by mounting slightly larger light transparent films than the display area of liquid crystal pannels on the monitoring side of the liquid crystal display device, respectively. CONSTITUTION:The large screen is constituted by arranging the devices A1, A2, A3... in the longitudinal and lateral directions. The light transparent films 5 are provided on the devices by sticking the films on the devices so as to project slightly over the external sizes B1, B2, B3... of the liquid crystal pannels 3 and the color filters 4, respectively. The large screen is constituted by overlapping the upper and lower and left and right light transparent films 5 respectively in such way that the films 5 are sticked on the devices A1, A2, A3 and A4 as shown by a full line, a broken line, a single dot chain line and a double dotted chain line, respectively. Thus, as the monitor does not directly watch the space between the liquid crystal devices, and the reflectances of the display part and the space part between the devices become to a uniform, the space between the liquid crystal devices becomes inconspicuous.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a liquid crystal display device.

[Conventional technology]

FIG. 5 is a perspective view showing a conventional liquid crystal display device. In FIG. (2) is a circuit board on which drivers and the like are mounted; (3) is a liquid crystal panel electrically connected to the end of the circuit board (2) and attached to the front of the liquid crystal display device (A); (4) has the same external shape as the liquid crystal panel (3),
It is a color filter divided into R, G, and 83 colors, and is pasted on the front of the liquid crystal panel (3).

Next, the operation will be explained. A light source emits light within the housing (1) and irradiates the liquid crystal panel (3) from behind.

The circuit board (2) generates a liquid crystal driving voltage from the data sent from the previous stage and applies it to the liquid crystal panel (3). The amount of light transmitted through the liquid crystal panel (3) is adjusted by the applied voltage.

Color display is performed by passing the transmitted light through the R10 and B color filters (4).

A large screen is constructed by stacking a plurality of liquid crystal display devices (A) vertically and horizontally.

[Problem to be solved by the invention]

Conventional liquid crystal display devices are constructed as described above, so when multiple liquid crystal display devices are stacked side by side, a gap is created between the liquid crystal display devices, and this gap is extremely There was a problem in that it was noticeable and the image quality was impaired.

This invention was made to solve the above-mentioned problems, and an object thereof is to obtain a liquid crystal display device in which gaps are not noticeable when a plurality of liquid crystal display devices are arranged side by side.

[Means to solve the problem]

A liquid crystal display device according to the present invention is a liquid crystal display device consisting of a liquid crystal panel, a color filter, and a housing, in which a light-transmitting film slightly larger than the display range of the liquid crystal panel is provided on the viewing side of the liquid crystal display device. .

[For production]

In the liquid crystal display device of the present invention, a light transmission film slightly larger than the liquid crystal panel is provided on the front surface of the liquid crystal panel, so when the liquid crystal display devices are stacked, the light transmission film closes the gap between the liquid crystal display devices. Therefore, the reflectance of the front surface of the liquid crystal display device becomes the same, and uniform image quality can be obtained.

[Example] Fig. 1 is a perspective view showing a liquid crystal display device according to an embodiment of the present invention, Fig. 2 is a layout drawing showing a state in which a plurality of liquid crystal display devices are arranged side by side, and Fig. 3 is a perspective view of a light transmitting film. In the figure, (1) to (4) indicate the same or corresponding parts as in FIG. (5) is a light-transmitting film pasted on the front surface of the liquid crystal display device (A), and is pasted so that the four sides of the film slightly protrude from the display area of the liquid crystal panel (3). In this example, when the gap between the liquid crystal display devices (A) is d,
Only X that satisfies d/2<x<d is made to protrude.

Figure 2 shows this liquid crystal display device (A,), (A,), (
A.).

(A4)... is arranged vertically and horizontally to construct a large screen. In Figure 1, Bll Bm+
831B shows the outline of the liquid crystal panel (3) and color filter (4).The light transmitting film (5) is for the liquid crystal display device (A1) with a solid line, and that of the liquid crystal display device (A2) is a broken line. The device (A3) is shown by the dashed line, and the liquid crystal display it (A, '') is shown by the two-dot chain line.The light transmitting film (5) of the liquid crystal display device (A) is shown as follows. Be sure to use light-transmitting films on the top, bottom, left, and right sides (5)
A large screen is constructed by overlapping the images.

In the above embodiment, the light transmitting film (5) is attached so as to protrude from all sides, but generally the protruding length of the light transmitting film (5) of the adjacent liquid crystal display device (A) is It is sufficient that the sum of the lengths exceeds d, and if one of the protrusions is made zero, the other should be made to protrude more than d.

Further, the light-transmitting film (5) may be provided with a light-appropriate property; in this case, it will have an anti-reflection function. As such a film, for example, Nitto Denko Corporation's A
Examples include the G series, Toshiku Co., Ltd.'s Tuft Tsubu, and Dai Nippon Printing Co., Ltd.'s NT series (all trademarks).

Furthermore, in the above embodiment, the color filter (4) and the light-transmitting film (5) were separated, but as shown in FIG. (4) may be fixed together.

〔Effect of the invention〕

As described above, according to the present invention, a light transmitting film slightly larger than the display part is provided on the front surface of the liquid crystal display device, so when a large screen is constructed by arranging a plurality of liquid crystal display devices, there is a gap between the liquid crystal display devices. The viewer does not directly see the gap, and the reflectance between the display area and the gap becomes uniform, which has the effect of making the gap less noticeable.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a liquid crystal display device according to an embodiment of the present invention, FIG. 2 is a layout diagram showing a state in which a plurality of liquid crystal display devices are arranged side by side, and FIGS. 3 and 4 are views showing another example of the present invention. FIG. 5 is a perspective view of a conventional liquid crystal display device. In each figure, the same reference numerals indicate the same or corresponding parts, (A)
, (A,), (Am)... are liquid crystal display devices, (1) is a housing, (2) is a circuit board, (3) is a liquid crystal panel, (4
) is a color filter, and (5) is a light transmitting film.

Claims (1)

[Claims] (1) A liquid crystal display device comprising a liquid crystal panel, a color filter, and a housing, characterized in that a light transmitting film slightly larger than the display range of the liquid crystal panel is provided on the viewing side of the liquid crystal display device.