Detection Circuit Storage Sub-Circuit Group Dynamic Signal Management

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Solution Overview

Problem

Current detection devices face challenges in achieving fast reading and large storage capacity of photo-generated electrons, leading to reduced information obtained from images due to limitations in capacitance and storage capabilities.

Innovation Solution

A detection circuit comprising an output control sub-circuit, a first storage sub-circuit, a photosensitive device, and a second storage sub-circuit group, where the second storage sub-circuit group is dynamically controlled to store excess electrical signals when the first storage sub-circuit is saturated, allowing for expanded storage capacity and fast reading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single storage sub-circuit is used, then the device structure is simple, but the storage capacity is limited and cannot meet large-scale electron storage requirements

Engineering Contradiction:

Improvecircuit structureVSAvoidstorage capacity

Core Design Contradiction:

Device complexityVSQuantity of substance

Solution Approach 1:

The storage system is divided into multiple storage sub-circuits (first storage sub-circuit and second storage sub-circuit group), each capable of independently storing photo-generated electrons. This segmentation allows the system to achieve large storage capacity while maintaining manageable circuit complexity through modular design.

Inventive Principle:

Principle #1Segmentation

2Quantity of substance

If the storage capacity is increased to meet large electron storage requirements, then the information acquisition is improved, but the reading speed becomes slow

Engineering Contradiction:

Improvestorage capacityVSAvoidreading speed

Core Design Contradiction:

Quantity of substanceVSSpeed

Solution Approach 1:

Multiple storage sub-circuits can be read out simultaneously through parallel reading paths, which maintains fast reading speed even as storage capacity increases. Each sub-circuit has its own reading control, enabling independent and concurrent operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The reading mechanism is made dynamic through the output control sub-circuit that can selectively control which storage sub-circuit is being read at any given moment. This dynamic control allows efficient management of reading operations across multiple storage units.

Inventive Principle:

Principle #15Dynamics

3Quantity of substance

If multiple storage sub-circuits are added to expand storage capacity, then the storage capability is improved, but the circuit complexity increases

Engineering Contradiction:

Improvestorage capacityVSAvoidcircuit structure

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The output control sub-circuit serves multiple functions: it controls the connection between different storage sub-circuits and the reading terminal, manages signal routing, and coordinates reading operations. This multi-functional design reduces the need for separate control circuits for each storage unit.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple storage sub-circuits are merged into a unified storage system with shared control mechanisms. The first and second storage sub-circuits are combined through the output control sub-circuit, creating an integrated system that achieves large capacity without proportionally increasing control complexity.

Inventive Principle:

Principle #5Merging (Combining)

4Quantity of substance

If the capacitance is increased to store more photo-generated electrons, then the storage capacity is improved, but the reading speed decreases

Engineering Contradiction:

Improvestorage capacityVSAvoidreading time

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

Instead of using one large capacitor with slow reading, the system segments storage across multiple smaller storage sub-circuits. These can be read out in parallel or sequentially with optimized timing, reducing the overall reading time while maintaining large total storage capacity.

Inventive Principle:

Principle #1Segmentation

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

The solution enables detection devices to meet both fast reading and large storage capacity requirements, enhancing the application range by dynamically managing electrical signal storage through the second storage sub-circuit group.

Implementation Method 1

The photosensitive device is coupled to a device voltage terminal and an output node, and is configured to convert received optical signals into electrical signals

Methodology Applied

Scientific EffectPhotoelectric effect: Photoelectric Effect

Data Source

PatentUS11079272B2Detection circuit and driving method therefor, detection substrate and detection device comprising a second storage sub-circuit group with a second voltage terminal group and a second control signal terminal group

Publication Date: 2021.08.03 BEIJING BOE OPTOELECTRONCIS TECH CO LTD

AI summary

A detection circuit includes a photosensitive device, a first storage sub-circuit, a second storage sub-circuit group, and an output control sub-circuit. The photosensitive device is coupled to a device voltage terminal and an output node. The first storage sub-circuit is coupled to the output node and a first voltage terminal. The second storage sub-circuit group is coupled to the output node, a second voltage terminal group and a second control signal terminal group. The output control sub-circuit is coupled to a signal receiving terminal, a first control signal terminal, and the output node.