Display Data Driving Apparatus Bezel Width Reduction
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Solution Overview
Problem
The existing design of display apparatuses, such as liquid crystal display apparatuses, results in increased bezel size due to the diagonal arrangement of data fan-out lines, which increases the length of these lines and consequently the bezel width, as the distance between data pads is narrower than the distance between data lines.
Innovation Solution
The proposed solution involves a data driving apparatus with a configuration that includes multiple data drivers and common voltage pads, allowing data signals to be output in a manner that reduces the slope and length of data fan-out lines by making them parallel to the data lines, thereby decreasing the bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data pads are positioned close to each other to reduce pitch, then data pad density is improved, but data fan-out line length increases due to diagonal connection requirement
Solution Approach 1:
The patent repositions data pads from a configuration requiring diagonal connections to one where pads are arranged along the data line direction, enabling parallel connections. This dimensional reorganization of pad placement allows fan-out lines to connect directly perpendicular to data lines rather than diagonally, reducing line length while maintaining high pad density
Solution Approach 2:
The patent employs asymmetric positioning of data pads relative to data lines, where pads are offset to align with data line extensions rather than being symmetrically distributed. This asymmetric arrangement enables fan-out lines to connect in parallel to data lines, transforming the connection geometry from diagonal to parallel and reducing overall line length
2Ease of manufacture
If data fan-out lines are arranged diagonally to connect data pads and data lines, then connection is achieved, but bezel width increases
Solution Approach 1:
The patent changes the connection dimension from diagonal to parallel by repositioning data pads along the data line direction. This allows fan-out lines to extend perpendicular to data lines rather than diagonally, reducing the horizontal space required and thereby decreasing bezel width while maintaining connection feasibility
Solution Approach 2:
Instead of connecting data pads to data lines in the conventional diagonal manner, the patent inverts the connection approach by arranging pads to enable perpendicular parallel connections. This inverted geometry reduces the horizontal footprint of fan-out lines, leading to a smaller bezel width
Data Source
AI summary
A data driving apparatus includes a first data driver and a second data driver. The first data driver is configured to generate data signals to data lines of a display panel, and includes data pads configured to output the data signals, a first common voltage pad configured to output a common voltage to the display panel, and a gate driving signal pad configured to output a gate driving signal to a gate driver, which is configured to output a gate signal to a gate line of the display panel. The second data driver is disposed between two first data drivers; is configured to generate the data signal provided to the data line; and includes a second common voltage pad configured to output the common voltage to the display panel. Thus, a width of a bezel of the display apparatus may be decreased.