Display Screen Assembly Non-Display Area Key Illumination
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Solution Overview
Problem
Traditional mobile phone display screens have a limited display area-to-exterior surface ratio due to non-display areas that cannot effectively show images, making it difficult to achieve a larger screen size and ergonomic design.
Innovation Solution
A display screen assembly that includes a light guide plate covering the non-display area, illuminated by a light source, and a light shielding band to enhance the display area, allowing the non-display area to be utilized for key arrangements, thereby increasing the display area and improving ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the ink area is used to shield the edge area where images cannot be displayed, then the display screen can be protected, but the display area to exterior surface ratio cannot be improved
Solution Approach 1:
The non-display area of the display screen is transformed into a multi-functional region by adding a light guide plate and light source. This area now serves both as a structural shielding element (original ink area function) and as an illuminated key input area, effectively increasing the usable display area without adding external complexity to the device structure.
Solution Approach 2:
The solution utilizes the previously wasted two-dimensional non-display area by introducing a third dimension - illumination from below through the light guide plate. This transforms the flat, non-functional edge area into a vertically layered structure that provides both shielding and illuminated key display functions, effectively expanding the functional display area.
2Area of moving object
If the ink layer is applied on the inner surface of the cover plate to shield the edge area, then the edge area can be protected, but the ratio of display area to exterior surface cannot be improved
Solution Approach 1:
The non-display area is transformed into a multi-functional region that simultaneously provides structural shielding (original ink layer function) and illuminated key input functionality. This allows the display area to be effectively increased while maintaining protective shielding, resolving the contradiction between protection and display area ratio.
Solution Approach 2:
The solution changes the optical parameters of the non-display area by introducing illumination. The previously dark, non-functional edge area is transformed into a lit area with visible keys, changing its functionality from purely protective to both protective and interactive, thereby improving ergonomics and increasing effective display area.
3Area of moving object
If the non-display area is utilized for key arrangements with illumination, then the display area is enlarged, but additional components (light guide plate, light source) are added
Solution Approach 1:
The solution merges multiple functions into the non-display area: structural shielding, illumination, and key display. By combining these functions into a single integrated region rather than adding separate components, the effective display area is enlarged while the increase in structural complexity is minimized through functional integration.
Solution Approach 2:
The non-display area becomes a universal region that performs multiple functions simultaneously - shielding, illumination, and key input display. This multi-functionality allows the display area to be effectively increased without requiring proportionally more complex structural components, as the same space serves multiple purposes.
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 enlarges the display area by utilizing the non-display area for key arrangements, enhancing the visual effect and ergonomic design of the display screen assembly.
Implementation Method 1
a light guide plate (20) and/or additional components thereof
Implementation Method 2
The light guide plate (20) is arranged on one side (for example, the upper side of FIG. 1 and FIG. 2) of the display screen (10) that is adjacent to the display surface (11)
Implementation Method 3
The ink layer is used to shield the area at the edge of the display screen where images cannot be displayed
Data Source
AI summary
A display screen assembly comprises a display screen, a touch panel, and a cover plate that are stacked sequentially. The display screen includes a display surface, the display surface has a display area and a non-display area surrounding the display area; the touch panel covers the non-display area and is provided with at least one virtual key; the cover plate comprises a light shielding band corresponding to the non-display area, the light shielding band comprises a key area, and the key area is configured to correspond to the at least one virtual key. The display screen assembly further has a lighting assembly configured to illuminate the key area.