Image sensor
AssigneeSK hynix Inc.
InventorTae Gyu Park
Life of this patent
Estimating the term…
Abstract
An image sensor including contiguous color filters is disclosed. The image sensor includes a grid disposed between color filters, a first reflective layer disposed over an upper portion of the grid and patterned to include first reflective structures at borders between adjacent sensor pixels to reflect light, and a second reflective layer disposed over and spaced from the first reflective layer and patterned to include second reflective structures at borders between adjacent sensor pixels to reflect light, and each second reflective structure formed in an angular shape to direct reflected light incident to borders between adjacent sensor pixels into adjacent sensor pixels.
Claims18
An image sensor comprising:
- an array of sensor pixels to detect incident light to output pixel signals indicative of an image of the incident light;
- color filters respectively formed over the sensor pixels to filter light incident to the sensor pixels, respectively;
- a grid disposed between the color filters to form borders between adjacent sensor pixels;
- a first reflective layer disposed over an upper portion of the grid and patterned to include first reflective structures at borders between adjacent sensor pixels to reflect light;
- and
- a second reflective layer disposed over and spaced from the first reflective layer and patterned to include second reflective structures at borders between adjacent sensor pixels to reflect light, and each second reflective structure formed in an angular shape to direct light incident to borders between adjacent sensor pixels into adjacent sensor pixels.
An image sensor comprising:
- a first reflective layer disposed over a grid located between a first color filter of a first pixel and a second color filter of a second pixel, and configured to reflect first incident light that has penetrated the first color filter and second incident light that has penetrated the second color filter;
- and
- a second reflective layer configured to enable the first incident light and the second incident light reflected from the first reflective layer to be respectively reflected to the first color filter and the second color filter, and formed in an angular shape.
Dependencies are inferred from the claim text.