Display Device Layer Gaps for High-Resolution Crosstalk Control
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Solution Overview
Problem
Existing display devices face challenges in achieving high resolution, preventing crosstalk between light-emitting devices, and ensuring reliable operation without film separation during fabrication.
Innovation Solution
A display device comprising multiple light-emitting devices with specific electrode and layer configurations, including gaps and insulating films, to inhibit unintended luminance and crosstalk, and enhance color gamut and aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light-emitting devices are arranged closely to increase resolution, then display resolution is improved, but crosstalk between adjacent light-emitting devices occurs
Solution Approach 1:
A gap is introduced between adjacent light-emitting devices to act as an intermediary barrier. This gap prevents harmful light from one device from affecting neighboring devices, thereby eliminating crosstalk while allowing the devices to be arranged in a high-resolution configuration.
2Object-generated harmful factors
If gaps are introduced between light-emitting devices to prevent crosstalk, then crosstalk is reduced, but aperture ratio decreases
Solution Approach 1:
The light-emitting structure is segmented into distinct units with gaps between them. This segmentation allows for the prevention of crosstalk while the overall design optimizes the aperture ratio through controlled spacing and structural configuration.
3Measurement precision
If multiple light-emitting devices are fabricated in close proximity to increase resolution, then display resolution is improved, but film separation occurs during fabrication
Solution Approach 1:
Gaps are pre-formed between adjacent light-emitting devices during the fabrication process. This preliminary action prevents film separation by ensuring physical separation of the devices before subsequent fabrication steps, thereby maintaining reliability while achieving high resolution.
4Area of moving object
If light-emitting devices are positioned close together, then aperture ratio is improved, but unintended luminance occurs in adjacent devices
Solution Approach 1:
Gaps serve as intermediary barriers between light-emitting devices, preventing light from one device from causing unintended luminance in adjacent devices. This allows the devices to be positioned close together for high aperture ratio while maintaining controlled light emission.
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 enables a display device with increased resolution, reduced crosstalk, and improved reliability by preventing film separation, resulting in a novel and convenient display device.
Implementation Method 1
By voltage application to this element, light emission can be obtained from the light-emitting organic compound
Data Source
AI summary
A novel display device that is highly convenient, useful, or reliable is provided. The display device includes first to fourth light-emitting devices, and the first light-emitting device contains a light-emitting material and includes a first layer sandwiched between a first electrode and a second electrode and a second layer sandwiched between the first layer and the first electrode. The second light-emitting device contains a light-emitting material and includes a third layer sandwiched between a third electrode and a fourth electrode and a fourth layer sandwiched between the third layer and the third electrode, a first gap is positioned between the third electrode and the first electrode, and the fourth layer is continuous with the second layer over the first gap. The third light-emitting device contains a light-emitting material and includes a fifth layer sandwiched between a fifth electrode and a sixth electrode and a sixth layer sandwiched between the fifth layer and the fifth electrode, a second gap is positioned between the fifth electrode and the third electrode, and a third gap overlapping with the second gap is positioned between the sixth layer and the fourth layer.