OLED Array Substrate with Single Driver for Transparent Display
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Solution Overview
Problem
Current OLED display devices face challenges in achieving a high screen-to-body ratio due to the need for components like cameras and sensors, which disrupt the consistency and synchronization of the display area, especially with the use of separate drivers for transparent and non-transparent regions.
Innovation Solution
The implementation of an OLED array substrate with a non-transparent display area using active driving mode and a transparent display area using passive driving mode, both driven by a single display driver integrated chip, along with specific electrode and light emitting structure configurations, to ensure consistency and synchronization of the display and improve light transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate drivers are used for transparent and non-transparent display areas, then each area can be independently controlled, but the display consistency and synchronization between areas deteriorates
Solution Approach 1:
The patent merges the control of transparent and non-transparent display areas by using a single display driver integrated chip to drive both first OLED sub-pixels (non-transparent) and second OLED sub-pixels (transparent). This unification ensures synchronized control and consistent display performance across different display areas while maintaining the ability to independently address each pixel type through separate electrode structures and driving modes.
2Device complexity
If a single display driver integrated chip drives both active and passive OLED sub-pixels, then device complexity is reduced, but the difficulty of signal channel allocation increases
Solution Approach 1:
The patent segments the data signal channels within the single display driver integrated chip to separately control first OLED sub-pixels (active driving mode) and second OLED sub-pixels (passive driving mode). By dividing the signal channels and assigning them to different pixel types with distinct driving modes, the system reduces overall device complexity while systematically managing the complexity of signal allocation through structured channel segmentation.
3Illumination intensity
If transparent display area uses passive driving mode, then light transmission performance is improved, but the precision of display control deteriorates
Solution Approach 1:
The patent applies different driving modes to different regions: active driving mode for non-transparent display areas requiring precise control, and passive driving mode for transparent display areas prioritizing light transmission. This local differentiation allows each area to operate optimally according to its specific requirements, with the single display driver integrated chip coordinating both modes through segmented signal channels.
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 solution allows for a full-screen display with improved imaging performance and reduced diffraction issues, enabling a seamless integration of components like cameras and sensors without compromising the overall display quality.
Implementation Method 1
a lower electrode, a first OLED light emitting structure disposed over the lower electrode, and an upper electrode disposed over the first OLED light emitting structure
Data Source
AI summary
A display device, a display panel thereof, and an OLED array substrate. The OLED array substrate includes a display area, and the display area includes a non-transparent display area and a transparent display area. The non-transparent display area is provided with first OLED sub-pixels arranged in an array, and the transparent display area is provided with second OLED sub-pixels in one row and several columns. When the columns of second OLED sub-pixels are driven, the transparent display area performs a display function; when the columns of second OLED sub-pixels are not driven, the transparent display area performs a light transmitting function.