Touch Display Device With Independent Haptic and Light Control
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Solution Overview
Problem
Current touch panels in electronic devices have inflexible display modes that restrict the ability to dynamically change display content and position based on user needs, limiting the display effect and flexibility.
Innovation Solution
A touch display device incorporating a circuit board with control units to drive piezoelectric elements for vibration feedback and light-emitting elements for dynamic image and text display, allowing independent control of light sources and enabling diverse and flexible display options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional touch panel with preset display areas is used, then the device structure is simple, but the display mode is inflexible and cannot be dynamically changed according to user needs
Solution Approach 1:
The touch panel is divided into multiple independently controllable display areas, each capable of displaying different content. This segmentation allows flexible configuration of display regions without requiring a complete redesign of the entire panel structure
Solution Approach 2:
The display areas are designed to be dynamically adjustable in size, position, and function. Users can freely configure the display regions according to their needs, transforming the static display structure into a dynamic one that adapts to different usage scenarios
2Adaptability or versatility
If light-emitting elements are added to enable dynamic display, then display flexibility is improved, but the device complexity increases
Solution Approach 1:
The touch panel integrates multiple functions including touch sensing, display, and light emission within a single device structure. The same hardware components serve multiple purposes, reducing the need for separate dedicated components for each function
Solution Approach 2:
The display characteristics such as brightness, color, and display area size are controlled by changing electrical parameters of the light-emitting elements rather than physically reconfiguring the hardware. This allows dynamic adjustment of display content through software control
3Ease of operation
If piezoelectric elements are added for tactile feedback, then user interaction is enhanced, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The piezoelectric elements are integrated into the existing touch panel structure, combining the tactile feedback function with the display and touch sensing functions. This merging approach allows adding haptic feedback capability without requiring a completely separate manufacturing process
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 rich and diverse text or image display with tactile feedback, enhancing user interaction and experience by allowing customizable and dynamic content presentation.
Implementation Method 1
The plurality of piezoelectric elements are disposed on the second surface of the circuit board. The first control unit is adapted to control the first driver group to drive at least one of the plurality of piezoelectric elements to vibrate
Implementation Method 2
The plurality of light-emitting elements are disposed in arrays on the first surface of a circuit board and each surrounded by the backlight module. The second control unit is adapted to control the second driver group to drive at least one of the plurality of light-emitting elements to emit light
Implementation Method 3
The backlight module is disposed on the first surface of the circuit board
Data Source
AI summary
A touch display device is provided, including a circuit board, a backlight module, a plurality of light-emitting elements, a plurality of piezoelectric elements, and a panel. The circuit board has a first surface and a second surface. The circuit board is provided with a first control unit, a first driver group, a second control unit, and a second driver group. The backlight module is disposed on the first surface of the circuit board. The plurality of light-emitting elements are disposed on the first surface of a circuit board. The panel is stacked on the backlight module. The first control unit is adapted to control the first driver group to drive at least one of the plurality of piezoelectric elements to vibrate, and the second control unit is adapted to control the second driver group to drive at least one of the plurality of light-emitting elements to emit light.