Image pickup unit and image pickup display system

Patent metadata

Field	Value
Publication number	US-9357143-B2
Application number	US-201313870156-A
Country	US
Kind code	B2
Filing date	Apr 25, 2013
Priority date	Jun 13, 2012
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

An image pickup unit includes: a plurality of pixels each including a photoelectric conversion device and a field-effect transistor. Each of the pixels includes a light-blocking layer in a peripheral region of the photoelectric conversion device, and the light-blocking layer is maintained to a predetermined electric potential.

First claim

What is claimed is:

1. An image pickup section with at least one pixel comprising:
(a) a photoelectric conversion device including a first conductivity type semiconductor layer, an intrinsic semiconductor layer, and a second conductivity type semiconductor layer,
(b) a peripheral area located outside of the photoelectric conversion device, and
(c) a light blocking layer within the peripheral area and surrounding the first conductivity type semiconductor layer in plan view.

2. The image pickup section according to claim 1 , wherein the at least one pixel is connected to a read out control line and a signal line.

3. The image pickup section according to claim 2 , wherein the light blocking layer is not overlaid with the read out control line.

4. The image pickup section according to claim 2 , wherein the light blocking layer is provided in the same layer as the read out control line.

5. The image pickup section according to claim 4 , wherein the light blocking layer and the read out control line are made of the same material.

6. The image pickup section according to claim 1 , wherein the photoelectric conversion device is configured to receive incident light and generate an electric charge corresponding to the incident light.

7. The image pickup section according to claim 1 , wherein a portion of the light blocking layer overlaps a portion of the photoelectric conversion device.

8. The image pickup section according to claim 1 , wherein the light-blocking layer has a predetermined electric potential.

9. The image pickup section according to claim 1 , wherein the light-blocking layer and the first conductivity type semiconductor layer are connected to a predetermined electric potential.

10. The image pickup section according to claim 1 , wherein the light-blocking layer is in-between a gate electrode and a substrate.

11. The image pickup section according to claim 1 , wherein the light-blocking layer is provided in the same layer as a gate electrode.

12. The image pickup section according to claim 1 , wherein the first conductivity type semiconductor comprises a low temperature poly-silicon.

13. The image pickup section according to claim 1 , wherein the photoelectric conversion device converts x-ray incident light into electric charges.

14. An image pickup display system comprising:
an image pickup unit;
an image processing section; and
a display unit,
wherein, the image pickup unit comprises:
(a) an image pickup section,
(b) a row scanning section,
(c) a column scanning section, and
(d) a system control section configured to control the row scanning section and the column scanning section, and
wherein the image pickup section comprises:
(a) a plurality of pixels arranged in a matrix,
(b) for each pixel, a photoelectric conversion device including a first conductivity type semiconductor layer, an intrinsic semiconductor layer, a second conductivity type semiconductor layer, and a peripheral area located outside of the photoelectric conversion device, and
(c) for each pixel, a light blocking layer within the peripheral area of the photoelectric conversion device and surrounding the first conductivity type semiconductor layer in plan view.

Assignees

• Sony Corp

Inventors

• Yamada Yasuhiro

Classifications

• H04N5/32 Primary

  Transforming X-rays (cameras or camera modules for generating image signals from X-rays H04N23/30; circuitry of SSIS for transforming X-rays into image signals H04N25/30) · CPC title

• H04N25/621

  for the control of blooming · CPC title

• H04N25/50

  Control of the SSIS exposure · CPC title

• H04N5/351 Primary

  Electricity · mapped topic

• H04N5/3591

  Electricity · mapped topic