Coordinate input device, image display device and electronic apparatus with the same

Abstract

The present invention provides a coordinate input device capable of making the appearance more beautiful and easy to input coordinates by scanning an operation surface with a pointing body, an image display device and an electronic device including the same. Wherein, in the coordinate input device of the analog type resistive film method, the first light-transmitting substrate (32) and the second light-transmitting substrate (31) are oppositely arranged with an insulating layer sandwiched between them, respectively on the inner surface side of each light-transmitting substrate. A transparent conductive film is formed, and the printed circuit (38, 37) connected to the transparent conductive film is formed on the outer periphery; the front of the liquid crystal display unit (20) is equipped with a liquid crystal display device (10) of a coordinate input device (30), and the coordinate input device (30) The input device forms a decorative printing layer (41) between the transparent conductive film (34) formed on the inner surface side of the second light-transmitting substrate and the second light-transmitting substrate, the first and second light-transmitting substrates The printed circuit formed on the outer peripheral portion of the substrate is hidden by the decorative printed layer, and cannot be visually recognized from the side of the operation surface of the second translucent substrate.

Description

technical field [0001] The present invention relates to a coordinate input device, an image display device and an electronic device provided with the coordinate input device, and particularly relates to a coordinate input device capable of scanning a pointer on an operation surface for coordinate input and an image display device provided with the coordinate input device, and An electronic device including such an image display device. Background technique [0002] In recent years, as a display unit of an electronic device such as a portable information terminal, a transparent sensor panel (touch panel) is arranged on the liquid crystal display unit in order to directly operate an object such as a menu item displayed on the display unit with a pointer such as a finger or a pen. The device on the front side is already known to us. [0003] FIG. 5 is a cross-sectional view showing an example of a liquid crystal display device including such a sensor panel. [0004] The liqui...

AI Technical Summary

Problems solved by technology

[0011] However, in the liquid crystal display device 100 of the above-mentioned structure, since the frame body 145 is provided on the outer peripheral edge of the upper substrate 131 of the induction plate 130, when the liquid crystal display device 100 is mounted on, for example, Image 6 When placed on the display portion 601e of the mobile phone 601 shown, there is a problem that the thickness of the mobile phone becomes thicker, or the frame 145 is seen when viewing the display portion, and there is a problem that the appearance is poor.

[0012] And, if there is the above-mentioned frame body 145 on the upper surface of the sensor board 130 (the outer surface of the upper substrate 131), then there is a step between the operation surface (the outer surface of the upper substrate 131) and the frame body 145, and the obstacle indicator 140 is placed on the sensor board. Scanning on the top of the 130, there is a problem that the usability is poor and dust and the like are easy to adhere to the above-mentioned steps.

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