Touch Display Light Control Element Assembly
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Solution Overview
Problem
The assembly of touch display apparatuses is complicated due to the need for precise alignment of infrared light sources and sensors, leading to increased production costs and difficulties in achieving high light energy utilization efficiency.
Innovation Solution
A touch display apparatus design featuring a body with a display module that emits image beams, a light control element to reflect these beams into an imaging space, and a touch module positioned around the imaging space to recognize user interactions, simplifying alignment and enhancing light energy utilization efficiency through self-luminous display technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared light source and sensor are arranged on opposite sides of light control element for accurate alignment, then touch sensing accuracy is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent extracts the infrared light source and sensor from the traditional opposite-side arrangement and repositions them to adjacent sides of the light control element. This extraction from the conventional configuration reduces the alignment precision requirements while maintaining touch sensing functionality, thereby simplifying the assembly process without significantly compromising measurement accuracy.
Solution Approach 2:
The patent introduces a reflective plate as an intermediary element to facilitate the optical path between the infrared light source and sensor when they are positioned on adjacent sides. This mediator enables the infrared signals to reach the sensor through reflection, maintaining sensing accuracy while allowing for easier assembly compared to direct opposite-side alignment.
2Use of energy by moving object
If traditional display module is used, then imaging function is achieved, but light energy utilization efficiency is low
Solution Approach 1:
The patent converts the previously wasted backlight light energy into useful imaging light by using a reflective plate to redirect the backlight toward the imaging space. This transforms what was previously a loss (backlight energy not utilized for imaging) into a beneficial contribution to the imaging function, thereby improving overall light energy utilization efficiency.
Solution Approach 2:
The patent makes the backlight serve multiple functions: it still provides illumination for the display module while simultaneously contributing to the imaging function through reflection. This multi-functionality increases the utility of the backlight energy, improving light energy utilization efficiency without requiring additional light sources.
3Measurement precision
If touch module is positioned to overlap opening for accurate touch detection, then touch recognition accuracy is improved, but assembly alignment difficulty increases
Solution Approach 1:
The patent uses the reflective plate as a mediator that enables the touch module to be positioned on adjacent sides rather than directly overlapping the opening. The reflective plate facilitates the optical path for touch detection while allowing more flexible positioning, thereby maintaining touch recognition accuracy while significantly easing assembly alignment requirements.
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
This design simplifies the assembly process, reduces production costs, and improves light energy utilization efficiency by using a self-luminous display module and positioning the touch module around the imaging space, allowing for effective touch operation recognition.
Implementation Method 1
The light control element is disposed to overlap the opening of the body and is adapted to reflect the image beams coming from the display module to an imaging space to display an image frame of the display module
Implementation Method 2
Through the self-luminous characteristic of the display module, the light energy utilization efficiency of the touch display apparatus is effectively improved
Data Source
AI summary
A touch display apparatus including a body, a display module, a light control element, and a touch module is provided. The body has an opening. The display module is disposed in the body and is suitable for emitting a plurality of image beams toward the opening. The light control element is disposed to overlap the opening of the body and is suitable for reflecting the image beams coming from the display module to an imaging space to display an image frame of the display module. The imaging space and the display module are located on two opposite sides of the light control element. The touch module is disposed on one side of the light control element and is configured to recognize a touch operation of a user in the imaging space.