Solid-state imaging device, driving method thereof and electronic apparatus

A driving method of a solid-state imaging device, comprising:

• in a solid-state imaging device including a semiconductor substrate including a light receiving surface which is divided according to pixels arranged in a matrix shape and is formed with a photoelectric converting section;
• an electrochromic film which is formed on the semiconductor substrate on a light incident path corresponding to the photoelectric converting section, in a portion of pixels selected from the pixels, and has light transmittance changing from a first transmittance to a second transmittance according to voltage applied thereto;
• a lower electrode which is formed below the electrochromic film;
• and an upper electrode which is formed above the electrochromic film, selecting the applied voltage so that the light transmittance of the electrochromic film becomes a predetermined value and applying the voltage to the electrochromic film.

A driving method of a solid-state imaging device, comprising:

• in a solid-state imaging device including a semiconductor substrate including a light receiving surface which is divided according to pixels arranged in a matrix shape and is formed with a photoelectric converting section;
• an electrochromic film which is formed on the semiconductor substrate on a light incident path corresponding to the photoelectric converting section, in at least a portion of the pixels, and has light transmittance changing from a first transmittance to a second transmittance according to voltage applied thereto;
• a lower electrode which is formed below the electrochromic film;
• and an upper electrode which is formed above the electrochromic film, detecting an amount of electric charge accumulated in the photoelectric converting section and applying a voltage to the electrochromic film according to the electric charge amount.

An electronic apparatus comprising:

• a solid-state imaging device;
• an optical system which introduces incident light to an imaging section of the solid-state imaging device;
• and
• a signal processing circuit which processes an output signal of the solid-state imaging device,
• wherein the solid-state imaging device includes
• a semiconductor substrate including a light receiving surface which is divided according to pixels arranged in a matrix shape and is formed with a photoelectric converting section,
• an electrochromic film which is formed on the semiconductor substrate on a light incident path corresponding to the photoelectric converting section, in a portion of pixels selected from the pixels, and has light transmittance changing from a first transmittance to a second transmittance according to voltage applied thereto,
• a lower electrode which is formed below the electrochromic film, and
• an upper electrode which is formed above the electrochromic film.

An electronic apparatus comprising:

• a solid-state imaging device;
• an optical system which introduces incident light to an imaging section of the solid-state imaging device;
• and
• a signal processing circuit which processes an output signal of the solid-state imaging device,
• wherein the solid-state imaging device includes
• a semiconductor substrate including a light receiving surface which is divided according to pixels arranged in a matrix shape and is formed with a photoelectric converting section,
• an electrochromic film which is formed on the semiconductor substrate on a light incident path corresponding to the photoelectric converting section, in at least a portion of the pixels, and has light transmittance changing from a first transmittance to a second transmittance according to voltage applied thereto,
• a lower electrode which is formed below the electrochromic film,
• an upper electrode which is formed above the electrochromic film, and
• a voltage applying section which detects an amount of electric charge accumulated in the photoelectric converting section and applies a voltage to the electrochromic film according to the electric charge amount.