Resin Layer Oxidation for Low Power Display Manufacturing
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Solution Overview
Problem
Current display devices face challenges in achieving low power consumption, high visibility across varying ambient brightness, and all-weather functionality while being thin and lightweight, with existing manufacturing methods being complex.
Innovation Solution
A method for manufacturing a display device involving the formation of a resin layer over a substrate, followed by heat treatment in an oxygen-containing atmosphere to create a conductive layer, and subsequent separation steps to form a thin and lightweight structure with a conductive layer exposed, allowing for the integration of reflective and light-emitting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a flexible light-emitting device using an organic EL element is used, then visibility in dark environments is improved, but power consumption increases
Solution Approach 1:
The patent combines a reflective liquid crystal display element and a light-emitting element (OLED or EL element) into a single display device. The reflective element provides low power consumption by reflecting ambient light, while the light-emitting element provides illumination in dark environments. This merging allows the device to achieve both low power consumption and good visibility in dark environments by selecting the appropriate display mode based on ambient lighting conditions.
2Illumination intensity
If a transflective liquid crystal display device is used, then visibility across different ambient brightness is improved, but device complexity increases
Solution Approach 1:
The patent divides the display device into distinct functional regions: a reflective liquid crystal display region and a light-emitting element region. Each region has its own electrode structure and optical characteristics. This segmentation allows independent optimization of each region's manufacturing process and simplifies the overall device structure compared to a fully transflective design, while still achieving visibility across different ambient brightness conditions.
3Illumination intensity
If multiple layers and materials are used to achieve low power consumption and high visibility, then display performance is improved, but manufacturing process complexity increases
Solution Approach 1:
The patent designs the electrode structure and layer configuration to serve multiple functions simultaneously. The same electrode layers and insulating layers are used for both the reflective liquid crystal display element and the light-emitting element, allowing a single manufacturing process to create both functional regions. This multi-functionality reduces the number of separate manufacturing steps and simplifies the overall production process while maintaining high display performance and low power consumption.
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 method results in a display device with low power consumption, high visibility, and all-weather capability, while simplifying the manufacturing process and reducing material complexity.
Implementation Method 1
a first heat treatment on the first layer while a gas containing oxygen is supplied
Data Source
AI summary
A method for manufacturing a display device with low power consumption is provided.A method for manufacturing a display device includes a step of forming a first layer over a substrate by using a material containing a resin or a resin precursor, a step of forming a first region and a second region thinner than the first region in the first layer, a step of forming a first resin layer including a first region and a second region thinner than the first region by performing first heat treatment on the first layer in a gas containing oxygen, a step of forming, over the first resin layer, a layer to be separated including a display element, and a step of separating the layer to be separated and the substrate from each other. A step of forming a conductive layer over the first resin layer in a position overlapping with the second region is included in the step of forming the layer to be separated. A step of exposing the conductive layer by removing the first resin layer is included after the step of separating the layer to be separated and the substrate from each other.