Mini LED Panel Driving Chip Integration

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Solution Overview

Problem

Existing mini LED light-emitting panels require a separate driving circuit for each LED, increasing production costs and leading to inefficiencies in driving multiple LEDs with the 2T1C drive circuit.

Innovation Solution

A light-emitting panel design featuring minimal repeating units with a driving chip comprising multiple submodules and a capacitor, allowing a single driving chip to control multiple light-emitting devices through scan and data signals, reducing the number of required driving chips and integrating the panel for improved efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate driving circuit (2T1C) is used for each LED lamp, then each LED can be driven independently, but the production cost of the driving circuit increases

Engineering Contradiction:
Improveindependent LED controlVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Multiple driving submodules (first driving submodule, second driving submodule, etc.) are merged into a single driving chip that can control multiple light emitting devices simultaneously, reducing the total number of driving chips needed while maintaining independent control capability for each LED

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The driving chip is designed with multiple driving submodules that can drive different light emitting devices using the same scan signal and different data signals, making a single driving chip universal for controlling multiple LEDs rather than requiring dedicated circuits for each

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple driving chips are used to control multiple LEDs, then each LED receives dedicated control signals, but the integration of the panel decreases

Engineering Contradiction:
Improvededicated control signalVSAvoidpanel integration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple driving functions are merged into a single driving chip structure, where first driving submodule, second driving submodule, and additional submodules are integrated together, reducing the number of separate driving chip components on the panel

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The driving chip utilizes time-multiplexed scanning signals across different spatial dimensions, allowing a single chip to control multiple LEDs arranged in arrays by sequentially activating different submodules with the same scan signal combined with distinct data signals for each LED

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11854464B2Display device and light-emitting panel
Publication Date: 2023.12.26 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
  • US11854464B2 patent drawing
  • US11854464B2 patent drawing
  • US11854464B2 patent drawing

AI summary

The present disclosure provides a display device and a light-emitting panel. The light-emitting panel includes a plurality of minimal repeating units, the minimal repeating units include a driving chip and a light emitting device, and the driving chip and the light emitting device are electrically connected, wherein the driving chip includes a first driving submodule, a second driving submodule, and a capacitor, and the light emitting device includes a first light emitting device and a second light emitting device. The first driving submodule is electrically connected to a first end of the first light emitting device, and the second driving submodule is electrically connected to a first end of the second light emitting device.