Optical receiving device and optical touch panel device provided with same

摘要

A light-receiving device 10 includes a plurality of light-receiving units 10A, 10B, and 10C, in which, in the element substrate 11A constituting the light-receiving unit 10A, the rear surface of a second terminal forming area 16Ac, upon which a connection pad PAc is formed, is bonded to the front surface of a cover glass 14B covering a plurality of light-receiving elements 12 constituting the light-receiving unit 10B, and in the element substrate 11C constituting the light-receiving unit 10C, the rear surface of a first terminal forming area 16Cb, upon which a connection pad PCb is formed, is bonded with the front surface of the cover glass 14B of the light-receiving unit 10B. As a result, an increase in manufacturing cost and a decrease in yield are mitigated so that it is possible to provide a light-receiving device upon which light-receiving elements are disposed continuously over a long distance at a high density, as well as an optical touch panel device provided with the same.

主权项

1. A light-receiving device, comprising a plurality of light-receiving units,
wherein each of the plurality of light-receiving units comprises:
a plurality of light-receiving elements;first and second terminal forming regions respectively provided for forming first and second connection terminals for connecting first and second circuits to the plurality of light-receiving elements, respectively; anda light-receiving element forming region disposed between the first and second terminal forming regions, the light-receiving element forming region being provided for forming the plurality of light-receiving elements, wherein each of the plurality of light-receiving units comprises a substrate and a protective member, wherein the plurality of light-receiving elements and the first and second connection terminals are formed on a front surface of the substrate, wherein the protective member is disposed so as to cover the plurality of light-receiving elements, wherein a rear surface of the first or second terminal forming region in the substrate of one of the light-receiving units and a front surface of the protective member of a light-receiving unit that is different from said one of the light-receiving units are bonded together, wherein the plurality of light-receiving elements are aligned in the light-receiving element forming region, wherein the plurality of light-receiving units comprise a first light-receiving unit and a second light-receiving unit, the first light-receiving unit having a rear surface of the substrate thereof in the second terminal forming region bonded to another light-receiving unit, the second light-receiving unit having a front surface of the protective member bonded to said first light-receiving unit, and wherein the first light-receiving unit and the second light-receiving unit are bonded together such that the plurality of light-receiving elements disposed on the first light-receiving unit and the plurality of light-receiving elements disposed on the second light-receiving unit are in a line with a regular gap from a plan view.