JRPanel - Membrane switch&Graphic overlay&Acrylic panel

  👉https://www.jrpanel.com/T👈 HMI HMI is a study of the interactive relationship between the system and the user. The system can be a variety of machines, it can also be a computer based systems and software. The HMI interface usually refers to the part that is visible to the user. The user communicates with the system through a HMI interface and performs operations.   The Three Stages of HMI   The first stage   When the computer was just born, the keyboard was transplanted from a typewriter to a computer. People could only communicate with the computer through character commands. At this time, the corresponding operating system was only DOS. Most people who have studied computers know that learning DOS needs to remember many commands operate, and you need to be familiar with the function of each key position of the keyboard. Therefore, the threshold of the earliest personal computer HMI is very high. Ordinary users must have a period of professional learning if th...

  👉https://www.jrpanel.com/T👈 1. Shape: shape, conductor line, insulation treatment, liner combination, etc. should meet the requirements of the drawing or provide physical samples. 2. Material: panel, substrate, silver paste, carbon ink, spacer, adhesive, adhesive, reinforcing plate, insulation printing should meet the requirements of the drawing. 3. Check appearance quality: The scope of this inspection is wide.    Panel: There must be no obvious defects (such as lack of strokes in characters that affect readability; stains, light transmission points; deinking, stains, scratches; transparent window overflow, residual glue, etc.); no offset phenomenon (printing sleeve Plate deviation ≤ 0.2mm; upper and lower line key combination deviation ≤ 0.5mm; circuit and key sheet, panel and face key combination deviation ≤ 0.3mm; panel and circuit combination after the surrounding blank area deviation ≤ 0.2mm; panel The offset between the button bump and the substrate is less tha...

👉https://www.jrpanel.com/T History has fixed in the minds of membrane-switch engineers the belief that 100 ohms is the maximum circuit resistance they should build into their products. The ability to achieve this low level of circuit resistance was made possible through the availability of highly conductive silver inks with volume resistivities of 0.03 ohms/square/mil or less. But these inks are expensive and add to the cost of a completed switch. Where did the 100-ohm barrier come from? Should we be putting this limitation on each membrane switch we manufacturer? The answer is a profound NO! Circuit Resistance as defined by ASTM F1680 is “electrical resistance as measured between two terminations whose internal contacts, when held closed, complete a circuit.” Since today’s microcontroller input current requirements are much lower than they were ten years ago, acceptable resistance levels are consequently higher than the 100-ohm limit we’ve traditionally followed. I recently asked an ...

👉https://www.jrpanel.com/T With the large number of user interface options available today, it is easy to forget why the membrane switch is an excellent choice for medical instrumentation. The basic advantages are still the same as they were two decades ago, when membrane switches became the interface of choice for a multitude of products, including toys and games, high-end appliances, industrial controllers, and automotive controls. These advantages have been enhanced by developments in materials, processes, and design expertise. Membrane switch applications are well suited for medical electronics, which are limited to a specific or small number of functions, are portable, and require a high degree of visibility. Membrane switches are particularly suitable for handheld medical applications and portable devices because they are lightweight, low profile, durable, easy to clean, and RoHS-compliant. This article discusses seven key features and characteristics of membrane switches that c...

👉 https://www.jrpanel.com/T 👈 Circuit layer printing is the most important factor reflecting the inherent quality of membrane switches. Circuit should be restricted by parameters such as current, resistance, withstand voltage, insulation, and life span. This is also a concrete manifestation of the penetration of screen-printed products into functional and high-tech fields. To ensure the function of the circuit, the screen of the printed circuit should be guaranteed first. Combining the requirements of the circuit parameters and the requirements of the structural elements in the circuit for screen printing are described below.   (1) The resistance of a wire made of the same thick conductor is inversely proportional to the cross-sectional area of the wire; the current passed is proportional to the cross-sectional area; its contact abrasion resistance is proportional to the thickness of the contact. It can be seen that the thickness of the circuit pattern printed by the me...

👉 https://www.jrpanel.com/T 👈 Since graphene was discovered by two scientists at the University of Manchester, the United Kingdom in 2004, it has quickly attracted the attention of the world due to its high strength, good toughness, and light weight. In 2010, two scientists were awarded the Nobel Prize in Physics for the discovery. In the past ten years, the research on graphene has been very hot. Graphene is also regarded as a "revolutionary material" because of its extremely broad application prospects in the fields of energy, biotechnology, aerospace and aviation. Some experts predict that the global graphene industry will exceed US$100 billion in the next 5 to 10 years.   According to related research reports, Graphene is a honeycomb-like quasi-two-dimensional structure formed by hybridization of C atoms with sp2 electron orbitals, and is another allotrope of C. Compared with other new materials, graphene has many excellent characteristics, such as high carrier mobility...

  👉https://www.jrpanel.com/T👈 Product  abstract : The conductive ink JRPanel uses is the ink with the lowest resistance in the electro-ink series, with a resistance value of 0.01 ohms/□.mil, having excellent conductivity. It is mainly suitable for membrane switches, RFID antennas and printed conductors. The printed thickness is thinner than general conductive ink, which can save printing ink consumption. With characteristics of good flexibility and fast curing, it has strong adhesion to various substrates such as polyester fibers, paper fabrics, and plastic films. There is no need to add thinner and it can be used directly. Under strict conditions of use, the solvent used can obtain a longer storage time. Application characteristics: · Very low resistance · No thinner · Strong adhesion · Low dosage · Good flexibility · Fast curing · Excellent screen printing performance Production Specifications Before curing Color Silver Viscosity 25,000  ...