Display Panel Groove Structures for Laser Remote Control
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Solution Overview
Problem
Liquid crystal display (LCD) panels face challenges in controlling light reflection from laser irradiation, leading to weak reflected light and invisible laser emission, which hinders normal control and display functionality.
Innovation Solution
A display panel design featuring a first substrate with a driving structure layer and a second substrate with a black matrix layer, including groove structures that allow light meeting a preset wavelength condition to be incident, enabling remote control of pixel units through detection signals and adjusting refresh frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional black matrix layer is used without groove structures, then the display panel maintains simple structure and manufacturing process, but laser light cannot penetrate effectively and remote control functionality is lost
Solution Approach 1:
The black matrix layer incorporates groove structures that create porous pathways, allowing laser light to penetrate through the otherwise opaque layer. These grooves enable selective light transmission while maintaining the light-blocking function for normal display operation, thus adding remote control functionality without completely redesigning the black matrix layer
Solution Approach 2:
The black matrix layer is segmented into multiple regions: opaque regions for light blocking and groove structures for light transmission. This segmentation allows different portions of the black matrix layer to perform different functions, enabling both display and remote control operations simultaneously
2Adaptability or versatility
If the black matrix layer completely blocks light to maintain display quality, then natural light interference is minimized, but laser light cannot incident into the pixel units for remote control
Solution Approach 1:
The black matrix layer exhibits local quality variation with opaque regions for light blocking and groove structures for light transmission. This local differentiation allows the layer to block natural light while permitting laser light to pass through specific pathways, achieving both display quality and remote control functionality
Solution Approach 2:
The groove structures, which could potentially allow unwanted light intrusion, are designed to selectively transmit laser light while blocking natural light. The potential harm of light penetration is converted into the benefit of enabling laser remote control functionality
3Adaptability or versatility
If groove structures are added to enable laser penetration, then remote control functionality is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The groove structures have optimized parameters including depth of 70%-90% of black matrix layer thickness and irregular distribution patterns. These parameter specifications provide manufacturing guidance while ensuring functional performance, balancing remote control capability with manufacturability
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 effectively enables remote control of the display panel by allowing light meeting specific wavelengths to penetrate and control pixel units, ensuring normal display functionality while minimizing the impact of natural light on switching transistors.
Implementation Method 1
an orthographic projection of the groove structure on the first base substrate at least partially overlaps with an orthographic projection of a channel region of a switching transistor in a corresponding pixel unit on the first base substrate to enable light meeting a preset wavelength condition to be incident into the display panel
Data Source
AI summary
Provided are a display panel and manufacturing method thereof, control method and display apparatus. The display panel includes a first substrate including first base substrate and driving structure layer, and a second substrate including second base substrate and black matrix layer, driving structure layer includes multiple switching transistors, the display panel includes multiple pixel units, each pixel unit includes a switching transistor. One side of black matrix layer close to first substrate is provided with multiple groove structures corresponding to multiple pixel units one-to-one. Orthographic projection of black matrix layer on first base substrate covers those of multiple switching transistors on first base substrate, and orthographic projection of the groove structure on first base substrate at least partially overlaps with that of a channel region of switching transistor in corresponding pixel unit on first base substrate to enable light meeting preset wavelength condition to be incident into the display panel.