Organic Light Emitting Display Unit Structure and Circuit
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Solution Overview
Problem
Existing organic light emitting display units face challenges in increasing the light emitting area of organic light emitting diodes while maintaining good driving performance and extending the lifespan of the display unit, due to the limitations imposed by the number and layout of signal lines.
Innovation Solution
The proposed solution involves an organic light emitting display unit structure where adjacent pixels share common reset and light emitting signal lines, reducing the area required for signal lines and increasing the light emitting area of the organic light emitting diodes, while maintaining good driving performance by using a low current to provide sufficient display brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If each pixel is equipped with independent signal lines, then driving performance is maintained, but the light emitting area is reduced due to more signal lines occupying space
Solution Approach 1:
Adjacent pixels share common reset signal lines and common light emitting signal lines, merging previously independent signal lines into shared resources. This reduces the total number of signal lines required, thereby increasing the light emitting area while maintaining proper driving control through the shared lines.
2Area of moving object
If the number of signal lines is reduced, then the light emitting area increases, but the complexity of signal line management increases
Solution Approach 1:
The display panel is divided into groups of adjacent pixels that share common signal lines. By segmenting the pixel array into manageable groups with shared resources, the system reduces overall signal line count while keeping the management complexity localized and organized through the grouping structure.
3Duration of action of stationary object
If more signal lines are used, then driving control is simplified, but the display unit lifespan is reduced due to higher current requirements
Solution Approach 1:
By merging signal lines across adjacent pixels, the system reduces the total current draw from the display unit. This extension of lifespan is achieved while maintaining driving control through the shared signal lines that coordinate the operation of multiple pixels.
4Duration of action of stationary object
If signal lines are optimized for low current operation, then lifespan is extended, but the number of signal lines must be reduced
Solution Approach 1:
Common signal lines serve multiple adjacent pixels simultaneously, making them universal resources that perform the same function across different pixel groups. This multi-functionality allows the system to operate with fewer signal lines at lower current levels, extending lifespan while maintaining control capability.
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 design effectively increases the light emitting area of organic light emitting diodes and extends the lifespan of the display unit by reducing the number of signal lines and optimizing their layout, ensuring efficient operation with low current usage.
Implementation Method 1
a first organic light emitting diode, wherein a first terminal of the first organic light emitting diode is coupled to a third terminal of the fourth switch, and a second terminal of the first organic light emitting diode is coupled to a second voltage
Data Source
AI summary
An organic light emitting display unit structure including a first pixel, a second pixel adjacent to the first pixel, a first scan line electrically connected to the first pixel, a second scan line electrically connected to the second pixel, a data line, a power line, a sustaining signal line, a common reset signal line and a common light emitting signal line is provided. The power line and the sustaining signal line are respectively electrically connected to both of the first pixel and the second pixel. The data line intersects with the first scan line and the second scan line and is electrically connected to the first pixel and the second pixel. The common reset signal line and the common light emitting signal line are substantially disposed inside the first pixel and the second pixel respectively and are electrically connected to the first pixel and the second pixel.