Display Panel Boost Circuit Reduces Power Consumption

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Solution Overview

Problem

The increasing demand for high potential levels for data writing in display devices leads to a larger potential difference that integrated circuits (ICs) need to provide, resulting in higher power consumption and driving capability requirements.

Innovation Solution

A display panel with a boost circuit that includes multiple boost units, each comprising a charging module, a bootstrap module, and an initialization module. These modules work together to boost the gate line potential, allowing for a low potential input and a high potential output, thereby reducing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by stationary object

If the IC directly provides gate line potential, then the gate line potential can be provided, but the power consumption increases and driving capability requirement increases

Engineering Contradiction:

Improvepower consumptionVSAvoiddriving capability

Core Design Contradiction:

Use of energy by stationary objectVSReliability

Solution Approach 1:

The gate line potential generation is segmented into multiple stages: a first potential is provided by the IC, then a boost circuit boosts this first potential to generate a second potential with higher absolute value. This segmentation allows the IC to operate at lower power while achieving the required high potential through the boost circuit.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The boost circuit is pre-configured with capacitors and switching elements that are charged during non-display periods. This preliminary charging action allows the circuit to quickly generate high potential when needed without requiring the IC to continuously provide high power.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the potential difference that the IC needs to provide becomes larger, then the gate line potential can be adjusted according to customer demand, but the driving capability required by the IC increases and power consumption grows

Engineering Contradiction:

Improvepotential level adjustmentVSAvoidpower consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts potential levels by using control signals to switch between different charging modes and bootstrap configurations. The boost circuit can adaptively provide different potential differences based on real-time requirements without the IC needing to directly provide all potential levels.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The boost circuit acts as an intermediary between the IC and the gate lines. It receives a first potential from the IC and transforms it into a second potential with higher absolute value, thereby providing adaptability for different potential requirements while keeping the IC's power consumption low.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Use of energy by stationary object

If a boost circuit is introduced to reduce power consumption, then power consumption is reduced, but the device complexity increases

Engineering Contradiction:

Improvepower consumptionVSAvoidcircuit structure

Core Design Contradiction:

Use of energy by stationary objectVSDevice complexity

Solution Approach 1:

The boost circuit is integrated within the display panel structure, with the charging module, bootstrap module, and initialization module nested together. The capacitors and switching elements are arranged in a compact configuration that minimizes additional space while providing the required functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The boost circuit is designed to serve multiple functions: charging capacitors, bootstrapping potentials, and initializing the gate lines. This multi-functionality reduces the need for separate circuits and minimizes overall device complexity while achieving power consumption reduction.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 boost circuit effectively reduces power consumption by allowing a high potential to be output to the gate lines while maintaining a low potential input, ensuring normal driving of the display panel and maintaining display quality.

Implementation Method 1

the bootstrap module at least includes a first module and a first capacitor

Methodology Applied

Scientific EffectCapacitance: Capacitance

Implementation Method 2

a bootstrap module, and an initialization module that are electrically connected, the bootstrap module at least includes a first module and a first capacitor

Methodology Applied

Scientific EffectBootstrap effect:

Data Source

PatentUS20250061834A1Display panel, driving method thereof and display device

Publication Date: 2025.02.20 SHANGHAI AVIC OPTO ELECTRONICS CO LTD

AI summary

Display panel, driving method thereof and display device are provided. The display panel includes a display area and a non-display area. The display area includes a plurality of pixel units and a plurality of gate lines electrically connected to the plurality of pixel units. The non-display area includes a boost circuit including a plurality of boost units. A boost unit of the plurality of the boost units includes a charging module, a bootstrap module, and an initialization module that are electrically connected. The bootstrap module at least includes a first module and a first capacitor.