Foldable Display Gamma Line Voltage Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Foldable display devices face issues with visible boundaries between separated display areas when multiple display areas output a single image, leading to luminance deviations and unsightly boundaries.
Innovation Solution
The implementation of a foldable display device with a display panel divided by folding lines, where each data integrated circuit includes gamma voltage generators connected by an external gamma line to minimize voltage deviations and reduce boundaries between display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple data integrated circuits are used to drive separate display areas, then the display device can be folded with reduced volume and weight, but luminance deviations occur between display areas causing visible boundaries
Solution Approach 1:
The patent connects gamma voltage generators from multiple data integrated circuits through external gamma lines to share a common reference potential. This merging of reference potentials across separate circuits eliminates luminance deviations between display areas while maintaining the folded structure's reduced volume and weight benefits.
Solution Approach 2:
External gamma lines act as intermediaries between the gamma voltage generators of different data integrated circuits. These connection lines transmit reference potentials across the folding boundary, serving as a mediator that synchronizes voltage references and eliminates visible boundaries between display areas driven by separate circuits.
2Ease of manufacture
If multiple data integrated circuits operate independently, then device complexity is reduced for easier manufacturing, but boundaries become visible between display areas
Solution Approach 1:
The patent maintains segmentation of the display device into multiple independently manufacturable data integrated circuits, each capable of driving separate display areas. This allows easier manufacturing through modular production while the external gamma line connections add minimal complexity to synchronize voltage references across segments.
Data Source
AI summary
A foldable display device includes a display panel. The display panel includes a plurality of display areas divided by at least one or more folding lines. A plurality of data integrated circuits is configured to output a data voltage to the plurality of display areas. Each of the plurality of data integrated circuits includes at least one or more gamma voltage generators that are configured to output a plurality of gamma voltages. The at least one or more gamma voltage generators are connected by an external gamma line, so that boundaries between the display areas may be minimized or reduced.