Flexible Display Device Rear-Folded Frame Design
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Solution Overview
Problem
Current display technologies, such as LCDs and OLEDs, face challenges in achieving a frameless design due to the presence of side frames and scanning circuits, which hinder the development of thinner, high-definition displays that meet customer demands for narrower frames, especially in large-screen applications.
Innovation Solution
A flexible display device design that incorporates a display area on the front surface and non-display areas on the rear surface, where the side frames are folded behind the rear surface, creating a frameless structure by utilizing specific bending lines and angles to conceal the frames, allowing for a seamless viewing experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If side frames and scanning circuits are disposed on the front surface of the display, then the display structure is simple to manufacture, but the frame width increases and aesthetic appeal deteriorates
Solution Approach 1:
The patent moves the side frames from the front surface (2D plane) to the rear surface of the display, utilizing the third dimension (depth) to resolve the contradiction. The bending lines enable the side frames to be folded backward, effectively hiding them while maintaining the front surface's aesthetic appearance.
Solution Approach 2:
The display is divided into multiple regions separated by bending lines, allowing different parts (front display area, side display areas, rear non-display areas) to be independently positioned and folded. This segmentation enables the side frames to be separated from the front view while maintaining structural integrity.
2Area of moving object
If the display area is expanded to meet large-screen demands, then the viewing area increases, but the side frame width proportionally increases affecting high-definition design
Solution Approach 1:
By utilizing the rear surface and folding mechanism, the patent allows the display area to expand without proportionally increasing the visible frame width. The side frames are positioned in the depth dimension rather than the front plane, decoupling display area expansion from frame width increase.
3Shape
If side frames are completely removed to achieve frameless design, then aesthetic appeal improves, but structural support and scanning circuit placement become problematic
Solution Approach 1:
Instead of placing the side frames on the front surface as conventional displays do, the patent inverts the arrangement by positioning them on the rear surface. This inversion achieves the frameless appearance from the front while maintaining structural support functions in the rear.
Solution Approach 2:
The patent employs flexible bending lines that allow the side frames to be folded backward while maintaining structural integrity. These flexible elements enable the frameless appearance without compromising the structural support function.
Data Source
AI summary
A display device comprises a backlight module, a display panel and a first glue layer. The backlight module comprises a light guiding plate, a flexible reflecting sheet and a light source. The light guiding plate is provided with a light incoming face, a light outgoing face, a back face and a plurality of side faces. The flexible reflecting sheet is provided with a first area segment and a plurality of second area segments. The back face of the light guiding plate leans against the first area segment; the second area segments are connected to the first area segment and are bent relative to the first area segment; and at least part of the second area segments cover the side faces of the light guiding plate correspondingly. The light source is arranged on the flexible reflecting sheet and is aligned with the light incoming face of the light guiding plate. The light outgoing face faces the display panel. The display panel and the backlight module adhere to each other through the first glue layer. The first glue layer is located between the display panel and the second area segments of the flexible reflecting sheet. The invention also discloses an assembling method of the display device. Thus, the display device can achieve the frame narrowing function.