JPS63174327U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 4 are diagrams showing a first embodiment of the liquid crystal display device of this invention, FIG. 1 is a sectional view showing the main parts of the device, and FIG. 2 is a state before connecting an external circuit board. 3 is a sectional view taken along the line - in FIG. 2, FIG. 4 is a sectional view showing a state of thermal fusion using a heat seal connector, and FIG. 5 is a second embodiment of this invention. 6 and 7 are diagrams showing a third embodiment of the invention, FIG. 6 is a sectional view corresponding to FIG. 5, and FIG. 7 is an external circuit. Planar views showing the substrate, FIGS. 8 and 9
The figures show a fourth embodiment of this invention, and FIG. 8 is a plan view showing the state before connection of the external circuit board, and FIG.
The figure is a cross-sectional view showing the connection state of the external circuit board.
0 to 14 are diagrams showing a conventional liquid crystal display device, FIG. 10 is a plan view of the device, FIG. 11 is a sectional view taken along the line - in FIG. 10, and FIGS. 12 and 13 are FIG. 14 is a plan view showing the polymer film pre-cutting process, FIG. 14 is a plan view showing the final cutting process, and FIG. 15 is a sectional view showing another conventional example. 21... Upper substrate, 22... Lower substrate, 23... Upper transparent electrode, 24... Lower transparent electrode, 28... Sealing agent, 29... Liquid crystal, 30... Display area, 3
DESCRIPTION OF SYMBOLS 1... Upper electrode extraction part, 32... Lower electrode extraction part, 33... First external circuit board, 34... Second external circuit board, 35, 54, 64... Upper external electrode,
36, 55, 65... lower external electrode, 37... heat seal connector, 43, 53, 63... external circuit board.

Claims (1)

[Claims for Utility Model Registration] (1) Two polymer film substrates having transparent electrodes inside are bonded together facing each other with a sealant interposed therebetween, and an enclosure defined by the sealant and both substrates. A liquid crystal is sealed in the space to form a display area within the sealed area, the polymer film substrate is extended outside the display area together with a transparent electrode to form an electrode lead-out part, and the pair of electrode lead-out parts are provided with an external In a liquid crystal display device in which a circuit board is connected, the electrode lead-out portions of both boards are extended in the same direction, and an external circuit board is inserted between the two electrode lead-out parts, and the external electrodes of the external circuit board are extended in the same direction. and the transparent electrode of the electrode extraction portion are electrically connected by thermal fusion through a heat seal connector. (2) The utility model registration request is characterized in that the external circuit board is composed of one sheet, and external electrodes are formed on both sides of the external circuit board to be connected to both transparent electrodes of both electrode extraction parts. The liquid crystal display device according to scope 1. (3) The liquid crystal display device according to claim 1 or 2, wherein the connection portion of the external electrode of the external circuit board is comb-shaped.