Overlapping Thin Display Layouts With Optical Bonded Cover Glass
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Solution Overview
Problem
Existing display units in automotive cockpits are limited by rectangular shapes and overlapping designs that are visible and require additional space, making it difficult to create non-rectangular, aesthetically pleasing layouts without increasing costs or complexity.
Innovation Solution
A multi-display arrangement with thin display units arranged in an overlapping manner, optically bonded to a cover glass, allowing for non-rectangular shapes and using cured liquid optically clear adhesive to conceal overlaps, with optional bending and cooling mechanisms to manage heat and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If display units are arranged in an overlapping manner, then non-rectangular shapes and aesthetic versatility are improved, but visibility of overlaps and device complexity increase
Solution Approach 1:
The patent applies dimensional change by transitioning from a traditional side-by-side 2D arrangement to a stacked 3D overlapping arrangement of display units. Multiple display units are positioned at different depths along the z-axis, creating a multi-layered structure that enables non-rectangular display outlines while utilizing spatial depth to organize components efficiently.
Solution Approach 2:
The patent implements nesting by placing display units within a shared housing structure where smaller display units are positioned within the spatial envelope of larger ones. The housing contains multiple display units at different positions and orientations, with some displays nested within the projected area of others, creating a compact integrated assembly.
2Shape
If display units are made thinner, then aesthetic appearance and integration are improved, but structural strength and heat dissipation capability worsen
Solution Approach 1:
The patent employs composite material structures where thin display units are combined with supporting housing structures and mounting brackets. The housing serves as a structural backbone that provides mechanical support to the thin displays, while thermal interface materials and heat sinks integrated into the housing address heat dissipation requirements without increasing display thickness.
3Shape
If display units are optically bonded to cover glass, then aesthetic appearance and seamlessness are improved, but manufacturing precision requirements and difficulty of repair increase
Solution Approach 1:
The patent introduces an optical bonding layer or adhesive intermediary between the display units and cover glass. This bonding medium fills gaps and accommodates minor misalignments, enabling optical integration while reducing the stringency of manufacturing tolerances. The intermediary material refractive index is matched to minimize optical distortion at interfaces.
4Adaptability or versatility
If non-rectangular display shapes are created using masking, then shape flexibility is improved, but additional space requirements and material usage increase
Solution Approach 1:
The patent segments the display system into multiple independent display units that can be selectively activated. Instead of using masking to create non-rectangular shapes from a single large display, the system divides the display area into discrete units that can be arranged in various configurations, allowing shape flexibility without requiring excess display material or masking components.
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
Enables cost-effective, aesthetically versatile display layouts with reduced visibility of overlaps, improved heat management, and enhanced durability, suitable for automotive, medical, aircraft, and industrial applications.
Implementation Method 1
the display units are optically bonded to a cover glass
Implementation Method 2
the space between display surface and adjacent cover glass surface is filled with cured liquid optically clear adhesive
Data Source
AI summary
A multi display arrangement includes at least two display units. A pair of the display units consists of thin display units that are arranged in an overlapping manner. The display units are optically bonded to a cover glass. At least one of the display units has a surface that is arranged at least partly with a larger distance to an adjacent surface of the cover glass than a respective surface of a respective other display unit.