Push Button Switch With OLED Display And Low Friction Guide Pins
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Solution Overview
Problem
Conventional push button switches with high operation frequency experience durability issues, such as wear-out and looseness, and liquid crystal displays have complex configurations, narrow viewing angles, and significant power consumption, which are not suitable for stable operation in broadcasting applications.
Innovation Solution
A push button switch with a display device featuring a switching body, metallic round pins with low friction, an organic light emitting display device, and a flexible printed circuit board with a control IC, along with elastic adhesives and sheets to secure the display device, providing stable operation and wide viewing angles while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resin materials with high durability are used in sliding parts, then wear resistance is improved, but friction coefficient remains high causing poor operation feeling
Solution Approach 1:
The invention uses a composite structure combining resin material with a metal plate having a low friction coefficient. The metal plate is bonded to the sliding surface of the resin plunger, creating a composite component that achieves both wear resistance from the resin and smooth operation from the metal surface. This resolves the contradiction by integrating materials with complementary properties.
2Ease of operation
If lubricating agent is applied to sliding part, then operation smoothness is improved, but durability decreases due to contamination and degradation
Solution Approach 1:
The invention replaces the chemical lubrication system (grease/lubricating agents) with a mechanical solution - a metal plate having inherently low friction properties. This substitution eliminates the need for lubricating agents that degrade and contaminate, while maintaining smooth operation through the physical properties of the metal surface.
3Adaptability or versatility
If liquid crystal display device is used, then display function is achieved, but configuration becomes complicated and power consumption increases
Solution Approach 1:
The invention extracts and eliminates the backlight unit from the display system, using only the liquid crystal panel without the complex backlight assembly. This reduces device complexity and power consumption while maintaining the display function through the liquid crystal's light modulation capability.
4Adaptability or versatility
If liquid crystal display device is used, then display function is achieved, but viewing angle becomes narrow
Solution Approach 1:
The invention changes the viewing angle parameter by orienting the liquid crystal molecules in a specific alignment mode that provides wide viewing angles. This parameter optimization allows the display to maintain good visibility and color accuracy from various viewing positions without requiring complex multi-domain structures.
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 ensures long-lasting, stable operation with unchanged initial force and feeling, wide viewing angles, and reduced power consumption, making it suitable for high-frequency applications like broadcasting without adding unnecessary forces or complexity.
Implementation Method 1
an organic light emitting display device attached to the holder
Implementation Method 2
metallic round pins having a small friction coefficient fastened to the grooves
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A push button switch is provided, which has a long life, high stability in operation, an operation force and an operation feeling which do not change from the initial state, and a display device which has a wide viewing angle and is capable of realising low power consumption. A push button switch with a display device comprises a switching body 16 including a case 1 having an opening part 1A on the upper side thereof and a case cover 13 covering the case 1, a switching element 10 provided within the switching body 16, and a plunger 12 protruding upward from a round hole 14 of the case cover 13, wherein up and down movement of the plunger 12 is guided within the switching body 16 to connect with the switching element 10 so as to open and close an electric circuit, the push button switch with a display device further comprises longitudinal grooves 6 provided at four corners of the outer side surfaces 3 of the case 1, metallic round pins 11 having a small friction coefficient fastened to the grooves 6, an operational button 21 covering the switching body 16 and being arranged in convex-concave fitting with the plunger 12, a holder 18 fixed within the operational button by a supporting plate 17, and an organic light emitting display device (organic light emitting diode panel) 19 attached to the holder 18.