Display Panel With Independent Driving Circuits for Power Optimization

Solution Overview

Problem

Conventional display panels consume excessive power as all display areas update their contents simultaneously, regardless of the frequency of content changes, leading to unnecessary power usage.

Innovation Solution

The display panel features structurally separated first and second signal lines connected to independent driving circuits, allowing each display area to independently update its content, thereby optimizing power consumption based on the content update frequency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If all display areas update contents simultaneously using a unified driving circuit, then the display panel structure is simple, but power consumption increases

Engineering Contradiction:

Improvedriving circuit structureVSAvoidpower consumption

Core Design Contradiction:

Device complexityVSUse of energy by moving object

Solution Approach 1:

The display panel is divided into multiple display areas (first display area and second display area), each with independent driving circuits (first driving circuit and second driving circuit). This segmentation allows each area to be controlled independently, enabling different frame rates for different content types, thus reducing overall power consumption while maintaining simple individual circuit structures.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If all display areas use the same frame rate, then the driving circuit is simple, but energy efficiency decreases

Engineering Contradiction:

Improvedriving control structureVSAvoidenergy efficiency

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

Different display areas are assigned different frame rates according to their specific content requirements. The first display area can operate at a higher frame rate for frequently updated content, while the second display area operates at a lower frame rate for static or slowly changing content. This local differentiation optimizes energy efficiency without requiring complex centralized control.

Inventive Principle:

Principle #3Local quality

3Loss of energy

If display areas are updated at different frequencies, then energy efficiency improves, but the driving circuit structure becomes complex

Engineering Contradiction:

Improvepower consumptionVSAvoiddriving circuit structure

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The display panel is divided into multiple display areas (first display area and second display area), each with independent driving circuits (first driving circuit and second driving circuit). This segmentation allows each area to be controlled independently, enabling different frame rates for different content types, thus reducing overall power consumption while maintaining simple individual circuit structures.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11030948B2Display panel

Publication Date: 2021.06.08 AU OPTRONICS CORP

AI summary

The disclosure provides a display panel including first pixel structures, second pixel structures, first signal lines, second signal lines, a first driving circuit, and a second driving circuit. The first signal lines and the first pixel structures are disposed in a first display area and electrically connected. The second signal lines and the second pixel structures are disposed in a second display area and electrically connected. The first display area and the second display area are arranged in a first direction. The first signal lines and the second signal lines are arranged in a second direction. The first direction and the second direction are perpendicular. The first signal lines and the second signal lines are structurally separated. The first drive circuit is electrically connected to the first signal lines. The second driving circuit is electrically independent from the first driving circuit and electrically connected to the second signal lines.