Image sensor

An image sensor and pixel technology, applied in the field of image sensors, can solve the problems of low image quality, four corner brightness and color differences, and achieve the effect of improving image quality and reducing brightness and color differences

Active Publication Date: 2013-07-17
GALAXYCORE SHANGHAI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The problem solved by the present invention is that the images generated by the image sensor in the prior art have different performances in the four areas of A, B, C, and D, the brightness and color of the four corners will be different, and the image quality is low

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Embodiment Construction

[0030] refer to figure 1, in the prior art, the generated image has different performances in the four areas A, B, C, and D, and often the brightness and color of the four corners will be different, resulting in low image quality. After serious research, the inventor found that during the imaging process of the image sensor, since a part of the photosensitive diode 11 overlaps with the transmission tube 12, the arrangement (including position and layout) of the transmission tube 12 relative to the photosensitive diode will affect the reception of the photosensitive diode 11. The amount of light, so when light enters the pixel array, the amount of light input in the four areas A, B, C, and D is basically equal to the symmetrical positions of the x-axis and y-axis, but due to the four areas A, B, C, and D The arrangement of the middle transmission tube 12 relative to the corresponding photodiode 11 is asymmetrical with respect to the x-axis and the y-axis, which leads to the fac...

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Abstract

The invention discloses an image sensor. The image sensor comprises a substrate and a pixel array. The pixel array comprises a plurality of pixels which are arrayed in rows and lines, wherein each pixel comprises a photosensitive diode and a transmission pipe. For the pixels with the same color channel, the arrangement way, corresponding to the corresponding photosensitive diode, of the transmission tube at least comprises a first arrangement way and a second arrangement way which are axially symmetrical; and the symmetrical axis of the first arrangement way and the second arrangement way is along the direction of the pixel row or the pixel line. The imaging quality of the image sensor can be improved.

Description

technical field [0001] The present invention relates to imaging devices, and more particularly to image sensors. Background technique [0002] Image sensors belong to the optoelectronic components in the optoelectronic industry. With the rapid development of digital technology, semiconductor manufacturing technology and the Internet, the market and the industry are now facing the arrival of the era of video, video, and communication integration across various platforms. The beauty of the daily life of future human beings. With its application in daily life, it is undoubtedly a digital camera product, and its development speed can be described as changing with each passing day. In just a few years, digital cameras have developed from hundreds of thousands of pixels to 4 million, 5 million pixels or even higher. Not only in developed European and American countries, digital cameras already occupy a large market, but also in developing China, the digital camera market is also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/146H04N5/335
Inventor 李杰
Owner GALAXYCORE SHANGHAI
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