US 7,321,672 B2
Image reading apparatus and image reading system equipped with the image reading apparatus
Kazuhiro Sasaki, Sagamihara (Japan); and Minoru Kanbara, Hachioji (Japan)
Assigned to Casio Computer Co., Ltd., Tokyo (Japan)
Filed on Mar. 25, 2005, as Appl. No. 11/90,368.
Claims priority of application No. 2004-091190 (JP), filed on Mar. 26, 2004; and application No. 2004-091191 (JP), filed on Mar. 26, 2004.
Prior Publication US 2005/0213173 A1, Sep. 29, 2005
Int. Cl. G06K 9/00 (2006.01); G06K 5/00 (2006.01); G06K 9/74 (2006.01)
U.S. Cl. 382—124  [250/556; 356/71] 19 Claims
OG exemplary drawing
 
1. An image reading system comprising:
an image display device which comprises a display panel with an image display area that is formed by a plurality of display pixels, and which emits display light corresponding to a display signal from the image display area from a viewing field side of the image display device so as to display an image; and
a photosensor panel which reads an image of a detectable object placed on a read area that receives at least a portion of the display light emitted from the image display area;
wherein the photosensor panel comprises:
a transparent substrate which has the read area and which is provided on the viewing field side of the image display device;
a plurality of photosensors which are formed in the read area above the transparent substrate;
a driver circuit section, which drives the photosensors, and which is formed above the transparent substrate at an outer side of the read area as one unit with the photosensors above the transparent substrate;
a transparent insulating film provided over the plurality of photosensors and the driver circuit section;
a transparent conductive film for electrostatic protection, which is provided above the transparent insulating film;
a plurality of external connection terminals for the driver circuit section which are provided at an end part of the transparent substrate;
a plurality of external connection terminals for the transparent conductive film which are provided at the end part of the transparent substrate;
a first lead around wire which is provided under the transparent insulating film, and which connects the driver circuit section and the plurality of external connection terminals for the driver circuit section; and
a second lead around wire which is provided on the transparent insulating film, and which connects the transparent conductive film and the plurality of external connection terminals for the transparent conductive film.