18427817. MANUFACTURING DEVICE OF DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE simplified abstract (Japan Display Inc.)
Contents
MANUFACTURING DEVICE OF DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE
Organization Name
Inventor(s)
MANUFACTURING DEVICE OF DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18427817 titled 'MANUFACTURING DEVICE OF DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE
Simplified Explanation: The patent application describes a manufacturing method for a display device that involves precise control of the evaporation rate during the deposition process.
- An evaporation source emits material to the processing substrate.
- A film thickness measurement device applies an acoustic impedance correction value based on the frequency of a crystal oscillator.
- The evaporation rate is measured by the amount of change in the frequency of the crystal oscillator.
- A controller ensures the evaporation rate remains constant by controlling the evaporation source.
Key Features and Innovation:
- Precise control of the evaporation rate during the deposition process.
- Use of a film thickness measurement device with an acoustic impedance correction value.
- Real-time monitoring and adjustment of the evaporation rate.
- Ensuring uniformity and consistency in the thickness of the layers formed.
Potential Applications:
- Manufacturing of high-quality display devices.
- Production of OLED screens with precise layer thickness.
- Fabrication of electronic components requiring controlled evaporation processes.
Problems Solved:
- Inconsistent layer thickness in display device manufacturing.
- Lack of real-time monitoring and control during the deposition process.
- Difficulty in achieving uniformity in transparent layers.
Benefits:
- Improved display device performance and quality.
- Enhanced efficiency in manufacturing processes.
- Cost-effective production of electronic components.
Commercial Applications: Potential commercial applications include the manufacturing of smartphones, tablets, TVs, and other electronic devices requiring high-quality display screens with precise layer thickness control.
Prior Art: Readers can explore prior patents related to evaporation rate control in deposition processes, film thickness measurement devices, and display device manufacturing methods.
Frequently Updated Research: Stay updated on advancements in evaporation rate control technologies, film thickness measurement techniques, and display device manufacturing innovations for the latest developments in the field.
Questions about Display Device Manufacturing: 1. How does the use of an acoustic impedance correction value improve the deposition process? 2. What are the potential challenges in implementing real-time monitoring of the evaporation rate in display device manufacturing?
Original Abstract Submitted
According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate, forming an organic layer, forming an upper electrode, forming a first transparent layer, and forming a second transparent layer. In a deposition process, an evaporation source emits a material to the processing substrate and a film thickness measurement device, and the film thickness measurement device applies an acoustic impedance correction value which differs depending on a frequency of a crystal oscillator, and measures an evaporation rate based on an amount of change in the frequency of the crystal oscillator, and a controller controls the evaporation source such that the evaporation rate becomes constant.
