OLED Pixel Data-Line Layout for Low-Power High-Resolution Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In OLED display devices, connecting pixels of different colors to a single data line increases power consumption and reduces resolution when pixels of the same color are disposed along a data line.
Innovation Solution
The display device incorporates a unique arrangement of scan lines and data lines, where each data line is connected only to pixels displaying the same color, with a specific overlapping structure of light emitting units and driving units to minimize power consumption while maintaining high resolution, utilizing a pentile matrix configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pixels representing different colors are connected to one data line, then device complexity is reduced, but power consumption increases
Solution Approach 1:
The patent segments the data lines into multiple separate lines (first data line, second data line, third data line), where each data line is dedicated to transmitting data to pixels of a specific color. This segmentation eliminates the need for complex switching mechanisms required in shared data line configurations, thereby reducing device complexity while simultaneously lowering power consumption by avoiding frequent voltage transitions on shared lines.
Solution Approach 2:
The patent implements local quality by assigning different data lines to different color channels (red, green, blue pixels). Each data line is optimized for its specific color group, allowing independent voltage control and signal optimization. This localized approach reduces the overall power consumption by eliminating the need to switch between different voltage levels for different colors on the same line, while maintaining a relatively simple connection structure.
2Use of energy by moving object
If pixels representing the same color are connected to one data line, then power consumption is reduced, but resolution is lowered
Solution Approach 1:
The patent divides the display into three separate data transmission channels (first data line for red pixels, second data line for green pixels, third data line for blue pixels). This segmentation allows each color to be driven independently with optimized voltage levels, reducing power consumption while maintaining the ability to address individual pixels for high resolution.
Solution Approach 2:
The patent adds a color-dimension to the data line organization, creating a three-dimensional addressing scheme where pixels are identified by both their spatial position and color channel. This dimensional expansion allows the system to group same-color pixels on separate lines (reducing power consumption) while still providing individual pixel control (maintaining resolution).
Data Source
AI summary
A display device includes: scan lines extending in a first direction; first data lines, second data lines, and third data lines extending in a second direction; a first driving unit connected to the scan lines and the first data lines; a first light emitting unit connected to the first driving unit; a second driving unit connected to the scan lines and the second data lines; a second light emitting unit connected to the second driving unit; a third driving unit connected to the scan lines and the second data lines; and a third light emitting unit connected to the third driving unit. The first light emitting unit overlaps the second driving unit or the third driving unit, the second light emitting unit overlaps the first driving unit or the third driving unit, and the third light emitting unit overlaps the first driving unit or the second driving unit.