Mini LED Pixel Driving Chip Integration for Wiring Complexity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mini LED display panels face challenges with excessive wire requirements, increased power consumption, and high manufacturing costs due to complex drive designs and limited wiring methods, which hinder high-resolution displays and efficient power usage.
Innovation Solution
A display panel design featuring a substrate with pixel circuits that include a pixel driving chip and light-emitting elements, where the pixel driving chip receives and stores data signals to drive the light-emitting elements, reducing the number of scan times and power consumption by using a combination of Active-matrix and Passive-Matrix driving methods, and simplifying the wiring structure to a single Cu wire layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional Mini LED backlight design is used with complex drive circuits, then light emission control is achieved, but wire requirements increase and manufacturing costs rise
Solution Approach 1:
The patent combines the gate driving circuit and data driving circuit into a single pixel driving chip that is integrated with the light-emitting element on the same substrate. This merging of previously separate components into one unified chip reduces the number of external wires needed and simplifies the overall wiring structure, directly addressing the contradiction between manufacturing ease and device complexity
Solution Approach 2:
The pixel driving chip performs multiple functions including data signal reception, storage, gate driving, and light-emitting element control, all within a single integrated component. This multi-functionality eliminates the need for separate gate driving circuits and data driving circuits, reducing wire requirements and manufacturing complexity while maintaining full display control capability
2Reliability
If multiple scan times are used to write data signals, then data writing completeness is improved, but power consumption increases
Solution Approach 1:
The pixel driving chip includes an internal register that stores data signals before they are written to the light-emitting element. This preliminary storage capability allows the chip to buffer data during the first scan and complete the writing process in subsequent scans without requiring repeated high-power writing operations, thereby reducing overall power consumption while ensuring data completeness
Solution Approach 2:
The patent implements a dynamic scanning mechanism where the first scan operates at a higher frequency to initialize data, and subsequent scans operate at lower frequencies to complete the writing process. This dynamic adjustment of scanning frequency across different phases ensures reliable data writing while minimizing power consumption during the longer writing period
3Ease of operation
If conventional driving circuits are used, then light emission control is achieved, but the number of wires and manufacturing complexity increase
Solution Approach 1:
The gate driving circuit and data driving circuit are merged into a single pixel driving chip that is integrated with the light-emitting element on the same substrate. This integration reduces the number of external connections and wires needed while maintaining full control capability over light emission, directly resolving the contradiction between ease of operation and device complexity
Solution Approach 2:
The driving circuits are nested within the pixel structure itself, with the gate driving circuit and data driving circuit contained inside the pixel driving chip that is already integrated with the light-emitting element. This nested arrangement eliminates the need for separate external driving circuits and reduces wiring complexity while preserving light emission control 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 solution reduces the number of scan times, power consumption, and manufacturing costs while improving display resolution and user experience by integrating gate and data driving circuits with the pixel driving chip on the same substrate, allowing for efficient light emission control with reduced wiring complexity.
Implementation Method 1
each of the plurality of pixel circuits comprises a pixel driving chip and at least one light-emitting element electrically connected to the pixel driving chip, and the pixel driving chip is configured to receive and store a data signal and drive the at least one light-emitting element to emit light according to the data signal
Data Source
AI summary
A display panel and a driving method thereof, and a display device. The display panel includes a substrate and a plurality of pixel circuits arranged in an array on the substrate, each of the plurality of pixel circuits includes a pixel driving chip and at least one light-emitting element electrically connected to the pixel driving chip, and the pixel driving chip is configured to receive and store a data signal and drive the at least one light-emitting element to emit light according to the data signal.