JPH073524B2 - Liquid crystal display - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device used as a large-screen display for guidance and advertisement at stations, airports, etc., and for projection in halls, theaters, etc.

2. Description of the Related Art Liquid crystal displays have been widely used in watches and calculators since they can be displayed with low power. Then, recently, a large-sized liquid crystal display including a large number of display elements has been developed. This was to meet the public and social needs of providing information to a large number of people at once.

The structure of the liquid crystal display element constituting such a large-sized liquid crystal display will be described with reference to FIG. In this liquid crystal display element, a seal resin 2 is arranged around two glass plates 1a and 1b as transparent substrates that transmit light from a light source to form a constant gap, and a liquid crystal 3 is enclosed inside the gap. ing. Further, transparent electrodes 4 are provided on the two glass plates 1a and 1b, and the electrode lead-out portions 4a and 4b of the electrodes 4 are connected to a liquid crystal drive circuit (not shown). Polarizing plates 5a and 5b are attached to both outer surfaces of the glass plates 1a and 1b.
A diffusion plate 7 is attached to the light source 6 side. Reference numeral 9 is a connection substrate which is planarly connected to the electrode lead-out portions 4a and 4b.

Problems to be Solved by the Invention In the conventional liquid crystal display device, the liquid crystal display element 8 is used alone, and the liquid crystal display element 8 and the connection substrate 9 are connected in a plane. Then, in forming a large screen, there is a problem that discontinuity occurs between the liquid crystal display elements 8.

The present invention solves such a problem, and has a function of holding a liquid crystal display element, and narrows the joints generated from the liquid crystal display elements when a large number of liquid crystal display elements are arranged and makes them continuous. The purpose is to provide the necessary mechanical strength by

Means for Solving the Problems In order to solve this problem, the present invention sandwiches the connection substrate between the electrode lead-out portion of the liquid crystal display element and the end face of the holding substrate to electrically connect the liquid crystal display element and the connection substrate. They are connected, and a liquid crystal display element is vertically combined with a holding substrate.

Action With this structure, the joint generated between the liquid crystal display elements is narrowed, and at the same time, the holding structure is provided which has the electrical connection of the liquid crystal display elements.

EXAMPLE FIG. 1 to FIG. 4 are views showing a liquid crystal display device according to an example of the present invention. In FIG. 1, 8 is a liquid crystal display element, which is the same as the liquid crystal display element explained in the conventional example. It is made up of two glass plates, a sealing resin, a liquid crystal, an electrode extraction part, a polarizing plate and a diffusion plate. The connection substrate 9 is previously bent with respect to the liquid crystal display element 8 so as to be connected to the electrode lead-out portions 4a and 4b, and the connection substrate 9 and the electrode lead-out portions 4a and 4b are thermocompression bonded. Reference numeral 10 denotes a holding substrate having a recess 10a at the tip facing the electrode extraction portions 4a, 4b and a through hole 10b at the center, 11
Is a cushioning material made of a rubber-based molded product, and 12 is a frame for mounting. A rubber-based cushioning material 11 is placed on the thermocompression-bonded connection board 9, and a concave portion at the tip of the holding board 10 is inserted so that the cushioning material 11 is inserted.
10a is applied, and the metal frame 12 covers the electrode lead-out portions 4a and 4b of the liquid crystal display element 8 and the sealing resin 2, and the right angle portion of the liquid crystal display element 8 and the through hole 10b of the holding substrate 10 are bridged.

FIG. 2 is a configuration diagram when the electrode lead-out portions 4a and 4b are provided above and below the liquid crystal display element 8. The liquid crystal display element 8 is held by the four holding substrates 10 and the metal frame 12 into a unit, and a large number of the liquid crystal display units 13 are stacked to form a large screen as shown in FIGS.

EFFECTS OF THE INVENTION As described above, according to the present invention, it is possible to arrange a large number of liquid crystal display elements in an easy and strong holding structure, and it is possible to narrow a visually discontinuous portion.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a liquid crystal display device according to an embodiment of the present invention, FIG. 2 is a perspective view of the same part, and FIGS. 3 and 4 show a case where a liquid crystal display element is combined to form a large screen. Is a perspective view and a sectional view, and FIG. 5 is a sectional view of a general liquid crystal display element. 1a, 1b …… glass plate, 3 …… liquid crystal, 4a, 4b …… electrode extraction part, 6 …… light source, 8 …… liquid crystal display element, 9 …… connection board, 10 …… holding board, 11 …… buffer Material, 12 ... Gold frame.

Claims (2)

[Claims] 1. An electrode lead-out portion comprising an electrode lead-out portion of an end face of a liquid crystal display element constituted by arranging liquid crystal between transparent substrates which transmit light from a light source and an end face of a holding substrate holding the liquid crystal display element. And the connection board that connects the external circuit with
A liquid crystal display device comprising a plurality of the liquid crystal display elements arranged vertically and horizontally by vertically combining the liquid crystal display element and a holding substrate. 2. The liquid crystal display device according to claim 1, wherein a concave portion is provided on an end surface of the holding substrate facing the electrode lead-out portion, and a cushioning material is arranged in the concave portion.