Integrated Photosensitive Chip Quadrangular Layout for Mobile Terminals
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Solution Overview
Problem
The integration of ambient light sensing and image sensing chips in mobile terminals requires light-transmitting holes, affecting the appearance and pixel density due to parallel arrangement, and existing solutions that integrate them compromise pixel count for image sensing.
Innovation Solution
A photosensitive chip with an image sensing portion and ambient light sensing portions spliced into a quadrangular pattern, allowing both to share a single light-transmitting hole without affecting each other's sensing areas, reducing the number of holes needed and maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ambient light sensing chip and image sensing chip are arranged in parallel, then both chips can function independently, but the mobile terminal requires at least one light-transmitting hole which affects appearance effect
Solution Approach 1:
The patent merges the ambient light sensing chip and image sensing chip into a single integrated photosensitive chip. The chip includes both an ambient light sensing area and an image sensing area with pixel array, allowing both sensing functions to coexist in one unified structure. This integration eliminates the need for separate light-transmitting holes for each chip, thereby improving appearance effect while maintaining independent sensing capabilities through spatial separation of sensing areas within the integrated chip.
2Shape
If the ambient light sensing chip is integrated into the image sensing chip, then the appearance effect is improved by reducing light-transmitting holes, but the ambient light sensing chip occupies part of the image sensing chip area causing loss in pixel count
Solution Approach 1:
The integrated photosensitive chip is segmented into distinct functional areas: an ambient light sensing area and an image sensing area with pixel array. This spatial segmentation allows each sensing function to operate independently without interfering with the other. The ambient light sensing chip occupies a specific region without encroaching on the pixel array area, thereby maintaining full pixel count for image sensing while achieving integration for improved appearance effect.
3Device complexity
If the ambient light sensing chip is integrated into the image sensing chip, then the number of light-transmitting holes is reduced, but the photographing effect is affected due to occupied pixel area
Solution Approach 1:
The patent transitions from a two-dimensional arrangement where separate chips require separate light-transmitting holes to a three-dimensional integrated structure. The photosensitive chip integrates multiple sensing layers and areas vertically and horizontally, allowing light to be directed to different sensing regions through a single light-transmitting hole. This dimensional change enables reduced device complexity while preserving photographing effect through optimized light path design and spatial arrangement of sensing areas.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures effective ambient light sensing and image capture without reducing pixel count, enhancing the mobile terminal's appearance and functionality by minimizing light-transmitting holes while maintaining photosensitive effects.
Implementation Method 1
the photosensitive chip is disposed in the light projection area, and is configured to receive the incident light and perform corresponding photosensitive processing
Data Source
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AI summary
A photosensitive chip, a mobile terminal and a photographing method are provided. The photosensitive chip includes an image sensing portion and ambient light sensing portions, the image sensing portion and the ambient light sensing portions are spliced to form a preset pattern, and the preset pattern is of a quadrangular structure.