Patent ID: 9736353
Date: 2017-08-15
CPC Classifications: G06T,H01L,H04N

Claim:
1. An image sensor comprising: a pixel array comprising a plurality of unit pixel arrays, wherein each of the plurality of unit pixel arrays comprises a plurality of unit pixel blocks arranged in a 4×4 matrix, wherein each of the plurality of unit pixel blocks comprises a phase difference detecting unit so that each of the plurality of unit pixel arrays comprises phase difference detecting units, wherein the phase difference detecting unit comprises a first phase difference detecting pixel and a second phase difference detecting pixel, wherein the first and the second phase difference detecting pixels have first and second openings, respectively, wherein the first and the second openings are arranged in an eccentrically manner with respect to each other, and wherein the phase difference detecting units arranged at each of the plurality of unit pixel blocks are asymmetrical to each other on the basis of a boundary line between adjacent unit pixel blocks, and the phase difference detecting unit of each of the plurality of unit pixel blocks is located at different position from the phase difference detecting unit of adjacent unit pixel blocks, wherein the first phase difference detecting pixel and the second phase difference detecting pixel are located at different rows and at the same column, and wherein the plurality of unit pixel blocks are arranged in a matrix having row lines and column lines, and in each of the unit pixel arrays, arrangements of the phase difference detecting units arranged in the plurality of unit pixel blocks at the same row line are the same as each other, arrangements of the phase difference detecting units arranged in the plurality of unit pixel blocks at odd-numbered row lines are the same as each other, arrangements of the phase difference detecting units arranged in the plurality of unit pixel blocks at even-numbered row lines are the same as each other, and the arrangements of the phase difference detecting units arranged in the plurality of unit pixel blocks at the even-numbered row lines are opposite to the arrangements of the phase difference detecting units arranged in the plurality of unit pixel blocks at the odd-numbered row lines.