Touch Display Bezel Width Reduction via Layered Wiring
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Solution Overview
Problem
Current touch display devices have a wide bezel width due to the arrangement of data and touch connection lines, which increases the distance between the touch display panel and the control unit, failing to meet market requirements for slimness and competitiveness.
Innovation Solution
The touch display device arranges data connection lines in two wiring layers and touch connection lines in the same layer as one of the data connection line layers, reducing the bezel width by minimizing the space occupied by data connection lines and allowing for a more compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data connection lines and touch connection lines are arranged in separate wiring layers, then signal interference is reduced, but bezel width increases
Solution Approach 1:
The patent merges data connection lines and touch connection lines into the same wiring layer, allowing them to be arranged in an interleaved pattern. This combining approach reduces the total space required for wiring while maintaining signal integrity through proper routing design, thereby reducing bezel width without completely separating the signal paths
Solution Approach 2:
The patent transitions from a single-layer wiring arrangement to a multi-dimensional routing strategy where data lines and touch lines are interleaved within the same layer. This dimensional reorganization allows for more efficient space utilization, reducing the horizontal space required and consequently decreasing bezel width while maintaining signal separation through vertical alternation
2Adaptability or versatility
If more connection lines are arranged between touch display panel and control unit, then connectivity is improved, but distance between panel and control unit increases
Solution Approach 1:
The patent combines multiple connection lines (data lines and touch lines) into a single integrated wiring layer structure. This merging allows for compact routing of all necessary connections within a reduced spatial envelope, improving connectivity while minimizing the distance between the touch display panel and control unit
3Area of stationary object
If line-thinning technology is adopted, then wiring space is reduced, but bezel width still increases due to wiring arrangement
Solution Approach 1:
The patent applies a dimensional reorganization principle by interleaving data lines and touch lines within the same wiring layer. This approach maximizes the utilization of the reduced wiring space achieved through line-thinning technology, arranging conductors in an alternating pattern that minimizes horizontal space requirements and consequently reduces bezel width beyond what line-thinning alone can achieve
Data Source
AI summary
The embodiments of the present application relate to the technical field of touch display device, and disclose a touch display device, including a touch display panel and a control unit arranged on a side of the touch display panel, with a first wiring area being arranged between the touch display panel and the control unit; wherein a plurality of data connection lines and a plurality of touch connection lines are led out of a side edge of the touch display panel, the plurality of data connection lines being connected with a plurality of data pins on the control unit in a one-to-one correspondence manner, while the plurality of touch connection lines being connected with a plurality of touch pins on the control unit in a one-to-one correspondence manner; and wherein within the first wiring area, the plurality of data connection lines are divided into two wiring layers, the plurality of touch connection lines being arranged at least in layer in which one wiring layer of the data connection lines are located. According to the above technical scheme, by arranging the data connection lines in a layering manner, a bezel width occupied by the data connection lines is reduced, and influence of the data connection lines on the bezel width is in turn reduced, facilitating development of the slim bezel of the touch display device.