LIGHT-EMITTING ELEMENT ARRAY AND LIGHT PRINT HEAD PROVIDED WITH SAME, AND IMAGE FORMING DEVICE

• Main Authors: TAKEUCHI, Taro, WATANABE, Takanori
• Format: Patent
• Language: English; French; German
• Published: 13.03.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CINEMATOGRAPHY; CORRECTION OF TYPOGRAPHICAL ERRORS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; MAGNETOGRAPHY; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; PRINTING; SELECTIVE PRINTING MECHANISMS; SEMICONDUCTOR DEVICES; STAMPS; TRANSPORTING; TYPEWRITERS

A light-emitting element array includes a semiconductor substrate that is rectangular, a plurality of light-emitting elements on the semiconductor substrate in a row along a first long side of the semiconductor substrate, a plurality of electrode pads on the semiconductor substrate in a plurality of rows along a second long side of the semiconductor substrate, and a plurality of wires on the semiconductor substrate to connect the plurality of light-emitting elements to the plurality of electrode pads. The plurality of electrode pads in the plurality of rows includes a first electrode pad in a row of the plurality of rows closest to the second long side and having a larger area than a second electrode pad in another row of the plurality of rows.