Transparent Display Dot-Array Structure for High Transmittance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional transparent display technologies suffer from low light transmittance, high cost, and reliability issues, particularly in liquid crystal display panels and organic light-emitting diode (OLED) displays, which limit their brightness and service life.
Innovation Solution
A transparent display device utilizing a scattered display panel with a dot-array structure, comprising a light source, a first base substrate with a light incident and emitting surface, and protrusions with an inverted trapezoidal shape, where the distribution density of protrusions increases away from the light source, and low-refractive-index portions between protrusions, enabling high light transmittance and uniform illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid crystal display panels or OLED displays are used for transparent displays, then display function is achieved, but light transmittance is low and service life is limited
Solution Approach 1:
The patent extracts and removes the problematic liquid crystal layer and color filter layer from the display structure, keeping only the necessary electrode layers and transparent conductive layers. This extraction eliminates the main causes of low light transmittance and limited service life while maintaining the basic display function through a simplified structure.
Solution Approach 2:
The patent replaces expensive and limited-life OLED materials with durable, inexpensive inorganic transparent conductive layers and simple electrode structures. This substitution uses materials with longer service lives and better stability while maintaining display functionality through electromagnetic field control.
2Adaptability or versatility
If transparent display technologies are implemented, then visual experience is enhanced, but manufacturing cost is high
Solution Approach 1:
The patent segments the display structure into independent functional layers: transparent electrode layers, inactive layer, active layer, and color emission layers. This segmentation allows each layer to be optimized and manufactured separately using standard thin-film deposition techniques, reducing overall manufacturing complexity and cost while maintaining high visual quality.
Solution Approach 2:
The patent changes the material parameters from organic OLED materials to inorganic transparent conductive materials with different optical and electrical properties. This parameter change enables the use of established, cost-effective thin-film fabrication processes while achieving superior transparency and durability.
3Illumination intensity
If uniform illumination is achieved in transparent displays, then display quality is improved, but light transmittance decreases
Solution Approach 1:
The patent applies local quality by creating an inactive layer with specific light scattering properties in certain regions while maintaining high transparency in other areas. The inactive layer contains transparent resin with scattered particles that provide uniform background illumination where needed, while the active display regions maintain high light transmittance for clear image display.
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 achieves high light transmittance (>80%) and improved brightness uniformity, reducing manufacturing complexity and costs while enhancing the reliability and service life of the transparent display device.
Implementation Method 1
the dot-array structure includes a plurality of protrusions, orthographic projections of the plurality of protrusions on the light emitting surface are distributed in an array; and an orthographic projection of each protrusion on a first plane is in an inverted trapezoidal shape
Implementation Method 2
A transparent display device utilizing a scattered display panel with a dot-array structure... enabling high light transmittance and uniform illumination
Implementation Method 3
the transparent display device further includes a plurality of low-refractive-index portions, the plurality of low-refractive-index portions are disposed in gaps formed between any two adjacent protrusions
Data Source
AI summary
A transparent display device and a backlight module are provided. The transparent display device includes: a scattered display panel including a display side; a first base substrate on a side of the scattered display panel facing away from the display side; a light source on a side of the first base substrate; and a dot-array structure between the scattered display panel and the first base substrate. The first base substrate includes a light incident surface and a light emitting surface. The dot-array structure includes a plurality of protrusions, and orthographic projections of the plurality of protrusions on the light emitting surface are distributed in an array. An orthographic projection of each protrusion on a first plane is in an inverted trapezoidal shape in a direction from the first base substrate to the scattered display panel.