Display Demux Detour Line Layout for Narrow Bezel Resolution Scaling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The width of the non-display area in display devices increases as the number of data lines increases to improve resolution, making it difficult to arrange signal transmission lines with sufficient distances and limiting the number of lines that can be arranged, thereby hindering resolution improvement.
Innovation Solution
The display device incorporates a substrate with a main area and a subsidiary area, featuring a circuit array layer with demux circuits that output multiple data signals from one data driving signal, and utilizes detour lines and auxiliary voltage supply lines to reduce the non-display area width without compromising resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of data lines is increased to improve resolution, then the resolution is improved, but the width of the non-display area increases
Solution Approach 1:
The patent introduces a subsidiary area that protrudes from the main area in a direction perpendicular to the display area, creating a third spatial dimension for arranging signal transmission lines. This allows data lines and other signal lines to be routed through the subsidiary area rather than expanding the non-display area width in the plane of the display surface, thereby resolving the contradiction between increasing data line count for higher resolution and maintaining a compact non-display area width.
2Area of stationary object
If the width of the non-display area is reduced to increase the display area ratio, then the display area ratio is increased, but it becomes difficult to arrange signal transmission lines with sufficient distances
Solution Approach 1:
The subsidiary area protruding from the main area provides an additional spatial dimension for routing signal transmission lines. This allows the non-display area width to be minimized while still accommodating all necessary data lines and other signal lines with adequate spacing, as the lines can extend into the protruding subsidiary area rather than being constrained to the planar non-display area.
3Measurement precision
If the number of data lines is increased to improve resolution, then the resolution is improved, but the number of signal transmission lines that can be arranged is limited
Solution Approach 1:
The subsidiary area provides additional spatial capacity in a perpendicular direction, enabling an increased number of data lines and signal transmission lines to be arranged without being constrained by the width of the non-display area. This dimensional extension allows the patent to support higher resolution displays with more data lines while maintaining a compact overall structure.
Data Source
AI summary
A display device includes a circuit array layer including a plurality of pixel drivers, data lines, and demux circuits disposed in a demux area of the non-display area, where the demux area is disposed adjacent to the subsidiary area, and a display driver circuit which supplies data driving signals associated with the data lines. A second data input line, which is electrically connected to a second demux circuit disposed in a second demux area of the demux area being a side area of the demux area in a first direction, includes a main input line; a demux detour line disposed in the display area and electrically connected to the main input line; and a detour additional line electrically connected between the demux detour line and an input terminal of the second demux circuit.