Transparent ITO Touch Control Structure for Under-Display Camera
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display panels with under-display cameras lack touch control functionality in the camera area due to the absence of metal wires, which affects user experience, and the use of indium tin oxide (ITO) wires at low temperatures results in poor conductivity and compromised touch control.
Innovation Solution
A display panel with a transparent first touch control structure made of ITO, positioned between the substrate and the organic luminescent layer, ensuring conductivity and light transmittance, while a second touch control structure using metal wires is employed in the peripheral area to maintain touch functionality without obstructing light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If no metal wires are provided in the camera area to enable image pickup, then light transmittance is improved, but touch control functionality is lost
Solution Approach 1:
The display panel is divided into a camera area and a peripheral area, with different touch control structures used in each region. The camera area uses a transparent first touch control structure while the peripheral area uses a second touch control structure, allowing each region to have optimized properties for its specific function.
Solution Approach 2:
Different touch control structures are applied to different regions of the display panel. The first touch control structure in the camera area is designed with high light transmittance properties, while the second touch control structure in the peripheral area has different characteristics, making each part suitable for its local requirements.
2Ease of operation
If ITO wires are used in the camera area to enable touch control, then touch control functionality is improved, but conductivity deteriorates due to low temperature processing requirements
Solution Approach 1:
The processing temperature parameter is optimized for ITO wire formation, with the organic luminescent layer prepared before ITO deposition to enable higher temperature processing. This allows the ITO wires to be formed with better conductivity while maintaining the required touch control functionality in the camera area.
Solution Approach 2:
The organic luminescent layer is prepared in advance before the ITO touch control wires are deposited. This preliminary action enables the subsequent ITO processing to occur at higher temperatures without damaging the organic layer, thereby improving the conductivity of the ITO wires.
3Illumination intensity
If ITO wires are used in the camera area to maintain light transmittance, then light transmittance is improved, but conductivity deteriorates
Solution Approach 1:
The processing temperature parameter is changed and optimized by preparing the organic luminescent layer before ITO deposition. This allows ITO wires to be formed at higher temperatures that improve conductivity while maintaining the transparent properties necessary for light transmittance in the camera area.
Solution Approach 2:
The display panel uses a composite structure combining transparent ITO touch control wires with an organic luminescent layer. The specific arrangement and processing of these materials create a composite system that achieves both good light transmittance and improved conductivity.
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
The solution enables effective touch control and image pickup in the camera area with improved conductivity and light transmittance, enhancing user experience by integrating transparent ITO touch control within the camera area and metal wire touch control in the peripheral area.
Implementation Method 1
treating the initial structure of the first touch control structure by annealing to obtain the first touch control structure
Data Source
AI summary
Disclosed are a display panel, a manufacturing method thereof and display equipment. The display panel comprises a display area, the display area comprises a camera area and a peripheral area surrounding the camera area, the camera area is provided with a transparent first touch control structure, and the first touch control structure is arranged between a substrate and an organic luminescent layer.