Slidable Display Data Driver Voltage Order Control
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Solution Overview
Problem
Existing display devices face challenges in efficiently adjusting the order of data voltages to accommodate different display modes, leading to suboptimal display quality when the display area is expanded or contracted.
Innovation Solution
A slidable display device with a data driver that includes an opposite direction channel selector and a channel direction controller, which adjusts the order of data voltages based on mode selection signals to optimize display quality across various modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display area is expanded to include the second display area, then the display area increases, but the order of data voltages becomes incorrect leading to degraded display quality
Solution Approach 1:
The data driver dynamically adjusts the output order of data voltages based on the current display mode. When the second display area is activated, the data driver reverses the output order for the corresponding pixel columns, allowing the same hardware to correctly support both single-area and expanded dual-area display modes without physical reconfiguration
Solution Approach 2:
The invention changes the parameter of data voltage output order based on display mode. By controlling whether to output data voltages in normal or reversed order to specific pixel columns, the system adapts to different display area configurations, ensuring correct image rendering in both first and second display areas
2Device complexity
If the data driver outputs data voltages in a fixed order, then the device complexity is reduced, but the adaptability to different display modes deteriorates
Solution Approach 1:
The data driver incorporates dynamic control capability by receiving mode selection signals and automatically adjusting the output order of data voltages accordingly. This dynamic adaptation allows the same data driver hardware to correctly support multiple display modes (single first display area or expanded first and second display areas) without requiring different physical devices
Solution Approach 2:
The data driver is designed with multi-functionality to handle different display configurations. By integrating mode selection signal reception and automatic output order adjustment, a single data driver can universally support both normal display mode and expanded display mode, eliminating the need for separate data drivers for different display areas
Data Source
AI summary
A display device, which is a slidable display device, includes a display panel and a data driver. The display panel includes a first display area, a second display area that is in one of a taken-in position and a taken-out-of position of the display device, and a pad area located on one side of the first display area. The display panel includes pixels disposed in the first and second display areas, and is driven in a first mode in which an image is displayed in the first display area or a second mode in which an image is displayed in the first and second display areas. The data driver generates data voltages based on pixel data, outputs the data voltages to the pixels, and controls an order of the data voltages output in the second mode.