Bendable Display Panels With Color Flexible Connection Substrate
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Solution Overview
Problem
Conventional display devices face limitations in achieving a narrower frame and arbitrary outer shapes due to the need for straight-line connections of flexible substrates, which restricts design and mechanism flexibility.
Innovation Solution
The configuration includes two adjacent display units with signal lines passing through between them, allowing connections from the inside and eliminating the need for outer circumference mounting areas, enabling a narrower frame and arbitrary shapes such as circular or oval designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flexible substrate is mounted on peripheral part and bent toward back surface for connection, then signal connection is achieved, but frame width increases and outer shape flexibility is limited
Solution Approach 1:
The patent moves the connection path from the peripheral dimension (mounting on outer circumference) to the internal dimension (passing through between display units). Signal lines are routed through the interior space between adjacent display units, allowing connection without increasing frame width.
Solution Approach 2:
The connection structure is nested within the display device itself. The flexible substrate and signal lines are positioned within the internal space between display units, utilizing the existing structural volume rather than adding external mounting areas.
2Reliability
If flexible substrate is mounted on peripheral part for connection, then signal connection is achieved, but outer shape is constrained to include straight-line portions
Solution Approach 1:
The connection path is relocated from the peripheral boundary (which constrains shape) to the internal space between display units. This allows the outer circumference to be shaped freely (circular, oval, or other curved shapes) while signal lines pass through the interior via flexible substrates connected to inner surfaces.
Solution Approach 2:
The display device is divided into multiple adjacent display units with mounting areas positioned on their inner surfaces. This segmentation allows independent routing of signal lines for each display unit through the flexible substrate, enabling arbitrary outer shapes without compromising connection reliability.
3Reliability
If mounting area is provided on outer circumference for flexible substrate connection, then signal connection is achieved, but frame becomes wider
Solution Approach 1:
Mounting areas are relocated from the outer circumferential dimension to the internal dimension between display units. This repositioning eliminates the need for peripheral mounting spaces, reducing frame width while maintaining connection functionality through flexible substrates connected to inner surfaces.
Solution Approach 2:
The mounting area function is extracted from the outer circumference and relocated to the internal space between display units. This separation allows the outer frame to be minimized while the connection function is fulfilled through internally positioned mounting areas and flexible substrates.
Data Source
AI summary
Provided is a configuration of a display device that can have a narrower frame. A display device (1) includes a first display unit (11) including a first substrate (111); a second display unit (12) including a second substrate (121) that is arranged so as to be adjacent to the first substrate (111) in an in-plane direction of the first substrate (111); a first line group (1171) that supplies a signal to the first display unit (11), the first line group (1171) passing through between the first substrate (111) and the second substrate (121); and a second line group (1271) that supplies a signal to the second display unit (12), the second line group (1271) passing through between the first substrate (111) and the second substrate (121). The first display unit (11) includes a mounting area to which the first line group (1171) is connected, in a part that is opposed to the second display unit (12), and the second display unit (12) includes a mounting area to which the second line group (1271) is connected, in a part that is opposed to the first display unit (11).