Multi-LED Pixel Circuit Layout for Low-Power High-Quality Displays
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Solution Overview
Problem
Existing display devices struggle to achieve high resolution, high display quality, low power consumption, and high reliability simultaneously.
Innovation Solution
The display device incorporates a pixel structure that includes a first transistor, a second transistor, a first conductive layer, and a light-emitting diode package. The light-emitting diode package consists of multiple light-emitting diodes connected through various conductive layers, with a constant potential supplied to the first conductive layer. This configuration allows for efficient power management and high display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple light-emitting diodes are integrated in a single pixel with multiple transistors and conductive layers, then display quality and resolution are improved, but device complexity increases
Solution Approach 1:
The pixel is segmented into multiple functional regions with separate light-emitting diodes (first LED, second LED, third LED) each controlled by dedicated transistors (first transistor, second transistor, third transistor). This segmentation allows independent control of different color channels or display zones, enabling high-color-gamut display and flexible display modes while maintaining manufacturing precision through modular architecture
Solution Approach 2:
The patent introduces a fourth conductive layer to provide constant potential supply, adding a new dimensional layer to the pixel structure. This fourth layer works in conjunction with the first through third conductive layers to establish multiple electrical potential planes, enabling complex electrical control schemes without increasing the physical footprint of the pixel, thus improving display quality without proportionally increasing device complexity
2Use of energy by moving object
If multiple conductive layers are used to connect transistors and light-emitting diodes, then power management efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The first conductive layer serves multiple functions: it connects the second electrode of the first light-emitting diode, connects the fourth electrode of the second light-emitting diode, and receives constant potential supply. This multi-functional design consolidates electrical connections, improving power management efficiency by enabling coordinated control of multiple LEDs while reducing the number of separate manufacturing steps required
Solution Approach 2:
The fourth conductive layer is specifically designed to supply constant potential to the first conductive layer, creating an equipotential reference plane. This equipotential design stabilizes the electrical environment for the light-emitting diodes, improving power consumption efficiency by reducing electrical fluctuations and enabling more precise current control, while the constant potential supply simplifies the manufacturing process by providing a stable reference during assembly
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
This configuration enables the display device to achieve high resolution, high display quality, low power consumption, and high reliability, addressing the limitations of existing technologies.
Implementation Method 1
The light-emitting diode package includes a first light-emitting diode, a second light-emitting diode
Data Source
AI summary
A display device with high display quality is provided. A display device with low power consumption is provided. In the display device, a first transistor, a second transistor, a first conductive layer, and a light-emitting diode package are included in a pixel. The light-emitting diode package includes a first light-emitting diode, a second light-emitting diode, a second conductive layer, a third conductive layer, and a fourth conductive layer. The first light-emitting diode includes a first electrode and a second electrode. The second light-emitting diode includes a third electrode and a fourth electrode. One of a source and a drain of the first transistor is electrically connected to the first electrode through the second conductive layer. One of a source and a drain of the second transistor is electrically connected to the third electrode through the third conductive layer. The first conductive layer is electrically connected to each of the second electrode and the fourth electrode through the fourth conductive layer. A constant potential is supplied to the first conductive layer.