PHOTOELECTRIC CONVERSION DEVICE, IMAGING SYSTEM AND MOBILE OBJECT

• Main Authors: TASHIRO KAZUAKI, SASAGO TOMOYA
• Format: Patent
• Language: English; Japanese
• Published: 06.09.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a photoelectric conversion device that can further improve accuracy of sensitivity adjustment.SOLUTION: A photoelectric conversion device comprises: a pixel array including a plurality of pixels each of which includes a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and the second electrode, in which the plurality of pixels includes a first pixel having a first color filter and a second pixel having a second color filter being different from the first color filter; a potential supply line that supplies a potential to the first electrode of the first pixel and the first electrode of the second pixel; and a control line that can supply potentials being different to each other to the second electrode of the first pixel and the second electrode of the second pixel to compensate for a difference between dependence on bias voltage to the photoelectric conversion layer having sensitivity of the first pixel, and dependence on bias voltage to the photoelectric conversion layer having sensitivity of the second pixel.SELECTED DRAWING: Figure 1 【課題】感度調整の精度をより向上させることが可能な光電変換装置を提供する。【解決手段】第１の電極と、第２の電極と、前記第１の電極及び前記第２の電極の間に配された光電変換層と、を各々が含む複数の画素を含む画素アレイであって、前記複数の画素は、第１のカラーフィルタを有する第１の画素と、前記第１のカラーフィルタとは異なる第２のカラーフィルタを有する第２の画素とを含む、画素アレイと、前記第１の画素の前記第１の電極と、前記第２の画素の前記第１の電極とに対し電位を供給する電位供給線と、前記第１の画素の感度の前記光電変換層へのバイアス電圧に対する依存性と、前記第２の画素の感度の前記光電変換層へのバイアス電圧に対する依存性との違いを補償するように、前記第１の画素の前記第２の電極と、前記第２の画素の前記第２の電極とに対し、互いに異なる電位を供給可能である、制御線とを備えることを特徴とする光電変換装置。【選択図】図１