Under-Display Module Structure With Substrate Holes and Back Plate Opening
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Solution Overview
Problem
Existing display devices face challenges in integrating modules such as cameras and sensors without increasing the size of the bezel part, which can make these components visible and affect the display area.
Innovation Solution
A display device design that incorporates modules within the display area by using a substrate with light-transmitting areas and openings in the back plate, allowing modules to be received without increasing the bezel size, and includes a flexible substrate with holes to enhance light sensitivity and reduce color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If modules such as cameras and sensors are disposed outside the display area, then they can be easily integrated, but the bezel size increases and the modules become visible
Solution Approach 1:
The module is nested within the display area by placing it in a cavity formed in the back plate. The back plate has a cavity that receives the module, and the flexible substrate has openings that allow light to reach the module while maintaining the display area's appearance. This nesting approach allows module integration without increasing bezel size.
Solution Approach 2:
The solution moves the module from the traditional side/bezel area to the third dimension by creating a cavity in the back plate. The module is positioned within the display area's depth, utilizing the space between the back plate and the flexible substrate. This dimensional change allows the module to be hidden while remaining accessible to light.
2Illumination intensity
If the flexible substrate is made completely transparent to allow light through to the module, then light sensitivity improves, but color accuracy deteriorates due to color shift
Solution Approach 1:
The flexible substrate has different optical properties in different regions. The region corresponding to the module area has higher transparency to allow light to reach the module, while other regions maintain normal display characteristics. This local quality differentiation allows the substrate to serve dual functions: enabling module operation and maintaining display quality.
Solution Approach 2:
The transparency parameter of the flexible substrate is changed locally in the module area. By adjusting the material composition or thickness in specific regions, the substrate allows more light transmission where needed while maintaining color accuracy in display areas. This parameter change enables selective light transmission without compromising overall color fidelity.
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
Modules like cameras and sensors are hidden within the display area, maintaining the bezel size and improving light sensitivity while reducing color shift and maintaining functionality.
Implementation Method 1
a second area in which a plurality of pixels and a plurality of light-transmitting areas are arranged
Implementation Method 2
the module receives light from outside through the bank layer and the multiple light-transmitting areas
Data Source
Figure 1
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Figure 4
AI summary
The present disclosure relates to a display device including: a flexible substrate including an active area and a bezel area disposed outside the active area, the active area including a module area in which multiple holes are provided; a back plate disposed on one surface of the flexible substrate, and being provided with an opening disposed in a manner that corresponds to the module area; a thin-film transistor and wire formation layer disposed on another surface of the flexible substrate, and including multiple light-transmitting areas disposed in a manner that corresponds to the opening; and a module received within the opening of the back plate, wherein the module receives light from outside through the multiple light-transmitting areas, the multiple holes, and the opening.