Coordinate input device and luqid crystal display device using the device

Abstract

The present invention provides a transparent capacitive coordinate input device that can be combined and mounted in a liquid crystal display device, and a liquid crystal display device using the coordinate input device. The coordinate input device (1) of the present invention has: an upper thin film substrate (2) on which one electrode layer (3) is formed on the back surface, and a lower thin film substrate on which the other electrode layer is formed on the surface opposite to one electrode layer (3). (5), transparently forming the upper / lower film substrates (2), (5), and one electrode layer (3) and the other electrode layer (not shown), simultaneously on the upper film substrate (2) and The transparent dielectric film (4) is sandwiched between the lower film substrates (5) for bonding.

Description

technical field [0001] The present invention relates to, for example, a capacitive coordinate input device as a pointing device such as a personal computer (computer). Background technique [0002] Figure 7 It is a schematic diagram of a conventional coordinate input device. This coordinate input device 100 is a kind of pointing device mounted on a notebook computer, and realizes coordinate input by changing electrostatic capacitance. [0003] First, the conventional coordinate input device 100 is arranged in such a way that the X electrode layer 103 composed of a plurality of X electrodes 102 is laminated on the upper surface of the film substrate 101 (detection substrate) made of synthetic resin, and the X electrode layer 103 composed of a plurality of X electrodes 102 is laminated on the back of the film substrate 101. In the Y electrode layer 105 constituted by the Y electrodes 104, the X electrodes 102 and the Y electrodes 104 are arranged in a matrix. [0004] The X ...

AI Technical Summary

Problems solved by technology

[0009] However, in the conventional coordinate input device 100, since the film substrate 101 or the control circuit substrate 110 are opaque, even if the conventional coordinate input device 100 is placed in front of a liquid crystal unit (not shown), it cannot be seen through the input device 100. Images displayed on the liquid crystal unit, etc.

[0010] For this reason, the conventional capacitive coordinate input device 100 cannot be incorporated into a liquid crystal display device.

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