SOLID STATE IMAGE PICKUP DEVICE, DRIVING METHOD OF SOLID STATE IMAGE PICKUP DEVICE AND ELECTRONIC APPARATUS

• Main Authors: HAN SANGMAN, MIYAUCHI TAKESHI, OWADA HIDEKI, TATSUTA KAZUKI, OKURA SHUNSUKE, TAKAYANAGI ISAO
• Format: Patent
• Language: English; Japanese
• Published: 10.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEMICONDUCTOR DEVICES

To provide a solid state image pickup device, a driving method of the solid state image pickup device and an electronic apparatus which can reduce the kTC noise of an LCG signal, prevent reduction in the SNR at a coupling point of an HCG signal and the LCG signal and increase the image quality.SOLUTION: A solid state image pickup device switches a first reset transistor and a second reset transistor to a conduction state at a start point of a reset period PR1, retains a first reset line in the connection state with a reset potential in a prescribed first period PR11 after the start of the reset period PR1, switches the first reset line to the floating state by switching the second reset transistor to the non-conducting state such that the impedance of the first reset line becomes high after the elapse of the first period PR1, and switches the first reset transistor to the non-conducting state at the termination point of the reset period PR1 after the elapse of a second period PR12.SELECTED DRAWING: Figure 3 【課題】ＬＣＧ信号のｋＴＣノイズを低減でき、ＨＣＧ信号とＬＣＧ信号の結合点におけるＳＮＲの低下を防止でき、ひいては高画質化を図ることが可能な固体撮像装置、固体撮像装置の駆動方法、および電子機器を提供する。【解決手段】リセット期間ＰＲ１の開始時点に第１のリセット用トランジスタおよび第２のリセット用トランジスタを導通状態に切り換え、リセット期間ＰＲ１が開始してから所定の第１の期間ＰＲ１１は第１のリセットラインをリセット電位との接続状態に保持し、第１の期間ＰＲ１経過後に、第１のリセットラインのインピーダンスが高くなるように、第２のリセット用トランジスタを非導通状態に切り換えて、第１のリセットラインをフローティング状態に切り換え、第２の期間ＰＲ１２が経過してリセット期間ＰＲ１の終了時点になると第１のリセット用トランジスタを非導通状態に切り換える。【選択図】図３