Integrated Bezel Touch Screen for Narrower Display Borders
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Solution Overview
Problem
Existing display apparatuses face limitations in reducing the bezel width due to the presence of physical button keys, which hinder thinning and aesthetic improvements.
Innovation Solution
Integration of a touch screen with bezel touch units and bezel wirings, utilizing transparent or opaque metal mesh bezel touch electrodes, and a touch driving unit that applies driving signals through bezel wirings, replacing physical buttons with touch icons in the bezel area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If physical button keys are provided in the bezel area, then user input functionality is achieved, but the bezel width cannot be reduced
Solution Approach 1:
The patent replaces mechanical button keys with a touch-sensitive electrode structure that detects user input through electrical signal changes rather than mechanical pressure. This allows the bezel area to be reduced while maintaining full input functionality through capacitive or resistive touch sensing.
Solution Approach 2:
The touch electrode structure in the bezel area serves multiple functions: it provides user input capability, maintains structural integrity of the display panel, and can be integrated with the display's existing electrode layers. This multi-functionality eliminates the need for separate mechanical buttons while preserving input functionality.
2Ease of operation
If separate touch panel is attached to display panel, then touch input capability is achieved, but device complexity increases
Solution Approach 1:
The patent combines the touch sensor electrodes with the display panel's existing electrode structures, specifically utilizing the common electrode and pixel electrode layers for touch sensing functions. This integration eliminates the need for a separate touch panel attachment, reducing structural complexity while maintaining touch input capability.
Solution Approach 2:
The display panel's electrode structures serve dual purposes: displaying images and detecting touch inputs. The common electrode and pixel electrodes are configured to function as both display elements and touch sensing elements, thereby eliminating the need for separate touch panel components.
3Device complexity
If any component of display panel is utilized as touch electrode, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent merges the touch electrode function with existing display panel components, specifically using the common electrode and pixel electrode that are already precisely positioned during display manufacturing. This approach leverages the existing precision manufacturing processes rather than introducing new alignment requirements.
Solution Approach 2:
The touch electrode structures are pre-configured during the display panel manufacturing process itself, utilizing the same fabrication steps and alignment procedures already in place for creating the display electrodes. This preliminary integration avoids subsequent alignment operations and maintains manufacturing precision standards.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a narrower bezel design, enhances usability, and improves aesthetics by allowing touch input functionality in the bezel area, increasing touch sensitivity and accelerating feedback.
Implementation Method 1
a touch driving unit configured to apply a touch driving signal to the plurality of touch electrodes, wherein the touch driving unit applies the touch driving signal to the bezel touch unit through the plurality of bezel wirings in the non-display area
Data Source
AI summary
An aspect of the present disclosure is directed to providing a touch screen integrated display apparatus that receives a user's input in place of a deleted button key in a bezel area. The display apparatus with an integrated touch screen can include a display area including a plurality of touch electrodes, a non-display area adjacent to the display area and including a bezel touch unit and a plurality of bezel wirings, and a touch driving unit configured to apply a touch driving signal to the plurality of touch electrodes. The touch driving unit applies the touch driving signal to the bezel touch unit through the plurality of bezel wirings in the non-display area.