OLED Resin Hardening via UV Transmitter
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Solution Overview
Problem
In organic light emitting diode (OLED) displays, the resin layer between the display panel and the cover window may not be fully hardened, leading to overflow and requiring additional processes or components to control, which increases manufacturing costs and complexity.
Innovation Solution
Incorporating an ultraviolet (UV) ray transmitter in the touch screen circuit film and metal wire to increase the hardening degree of the resin layer by allowing UV rays to reach and cure the resin, reducing the need for additional components and processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the resin layer is made to cover the pad area, then the bonding between display panel and cover window is improved, but the resin layer cannot be fully hardened due to UV ray blockage, leading to overflow
Solution Approach 1:
The touch screen circuit film is segmented with through holes at specific positions to allow UV rays to pass through. These through holes are strategically located to enable UV penetration to the resin layer in the pad area while maintaining the overall integrity and bonding function of the circuit film.
Solution Approach 2:
The through holes in the touch screen circuit film act as intermediaries that transmit UV rays from the upper layer to the resin layer below. This mediator structure allows the UV curing process to reach areas that would otherwise be blocked by the circuit film, enabling complete hardening of the resin.
2Reliability
If additional components or processes are added to control resin overflow, then the resin overflow problem is solved, but manufacturing cost and complexity increase
Solution Approach 1:
The touch screen circuit film itself is modified to include through holes that enable its own UV curing function. This self-service approach eliminates the need for additional components or processes to control resin overflow, as the circuit film's structure directly enables complete resin hardening and prevents overflow.
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
Efficiently controls the overflow of the resin layer by ensuring complete hardening, eliminating the need for cleansing processes and additional components, thus reducing manufacturing costs and improving process efficiency.
Implementation Method 1
at least one of the touch screen circuit film and the metal wire including an ultraviolet ray transmitter configured to increase a hardening degree of the resin layer in the pad area
Data Source
AI summary
An organic light emitting diode display includes a display panel including a display area to which a touch screen panel is attached and a pad area in which a metal wire is formed; a cover window on one side of the display panel; a resin layer between the display panel and the cover window; and a touch screen circuit film in the pad area and connected to the touch screen panel, at least one of the touch screen circuit film and the metal wire including an ultraviolet ray transmitter configured to increase a hardening degree of the resin layer in the pad area.