Touch-Controlling Base Plate Narrow Frame Design
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Solution Overview
Problem
Conventional touch-controlled screens require wide black boundary frames to accommodate lead wires, reducing the screen-to-body ratio and increasing costs, especially when narrow frames are desired.
Innovation Solution
A touch-controlling base plate with a touch-controlling region and a non-touch-controlling region, where the touch-controlling region features alternating first and second electrically conductive units intersecting perpendicularly, and the non-touch-controlling region includes lead wires and touch-controlling units, allowing for reduced lead wire placement and narrower frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lead wire layout is used to connect touch-controlling units, then electrical connection is achieved, but wide black boundary frames are required which reduce screen-to-body ratio
Solution Approach 1:
The patent transitions from planar lead wire routing to three-dimensional vertical connections by introducing through-holes in the base plate. This allows lead wires to connect to touch-controlling units on the opposite side of the base plate, eliminating the need for wide horizontal boundary frames and significantly increasing the screen-to-body ratio.
Solution Approach 2:
The base plate is segmented into multiple layers with through-holes creating separate connection paths. The touch-controlling units are distributed across opposite sides of the base plate, allowing independent routing of lead wires through vertical channels rather than requiring horizontal space for connections.
2Reliability
If lead wires are placed to connect touch-controlling units, then electrical connection is established, but black boundary frames increase in size
Solution Approach 1:
The patent moves lead wire connections from the horizontal plane to the vertical dimension by using through-holes in the base plate. This allows lead wires to extend vertically through the base plate thickness rather than horizontally across the display area, dramatically reducing the width of black boundary frames.
Solution Approach 2:
The through-holes in the base plate serve as intermediary structures that facilitate vertical connections between touch-controlling units on opposite sides. These holes act as mediators that enable electrical connection without requiring horizontal space, thereby reducing boundary frame width.
3Ease of operation
If conventional touch-controlling structure is used, then touch control function is achieved, but manufacturing cost increases
Solution Approach 1:
The patent merges the touch-controlling units with the base plate structure by integrating them into a single integrated component. The touch-controlling units are formed as part of the base plate assembly, eliminating separate manufacturing steps and reducing assembly complexity, thereby lowering overall manufacturing cost.
Solution Approach 2:
The base plate serves multiple functions: it provides structural support, contains the touch-controlling units, provides electrical connections through vertical through-holes, and defines the display area. This multi-functionality reduces the need for separate components and simplifies manufacturing, reducing overall cost.
Data Source
AI summary
A touch-controlling region of a touch-controlling base plate includes a touch-controlling layer; a non-touch-controlling region includes a plurality of lead wires and at least one touch-controlling unit; the touch-controlling layer includes a plurality of first electrically conductive units and a plurality of second electrically conductive units; the touch-controlling unit is located on at least a first side of the touch-controlling layer; the lead wires are connected to the touch-controlling unit, and are located on a same one side of the touch-controlling layer; and a plurality of lines of the first electrically conductive units that are arranged in the first channel direction are grouped into two groups, and at least one of the groups is connected to the lead wires via each line of the first electrically conductive units that are located at an edge of the first side of the touch-controlling layer.