Process and Quality Assurance in the Capacitive Touch Panels Manufacturing Process

Overview and history of the Capacitive Touch Panel:

A Capacitive Touch Panel is a device that uses a human finger to sense the position and movement of the finger. The technology is used in many devices such as smartphones, tablets, laptops, and desktop computers. This technology was invented by Dr. Sam Hurst in 1983 at the University of Toronto. It was initially used for touch screens to control airplanes and later it was used in the medical field to detect heartbeats.

Nowadays, as a leading manufacturer of capacitive touch panels in China, Micron is the first company can produce 86 Inch Metal Mesh Capacitive Touch Screen. The company has been a pioneer in the capacitive touch panel industry and has mastered the advanced capacitive touch panel manufacturing process.

Microm capacitive touch panel products have been used in more than 40 countries for more than 12 years. Micron’s product has been recognized by many customers who have won us a lot of good reputation and a high reputation.

Difference: Capacitive VS Resistive Touch Panels

Capacitive touch panels are the most popular type of touch panel. They use a simple electrical charge to detect if a finger is touching the screen.

The manufacturing process for capacitive touch panels is very similar to that of resistive touch panels. However, there are some key differences in how these two technologies work.

Capacitive Touch Panel

The capacitive touch panel is an advanced touch screen technology. It has high sensitivity and can be used for a variety of applications, such as mobile phones and computers. Capacitive TFT displays do not use pressure sensitivity at all, they actually use electrical resistance instead.

When you place your finger on the screen, it introduces an electric field that changes how much current can flow through each pixel in the array (the grid of pixels). The more current that flows through each pixel, the brighter it appears on the screen. Less current will dim it down until eventually, it lights up no more so it appears black again. Capacitive screens also require fewer layers than resistive screens.

Resistive Touch Panels

Resistive touch panels work by detecting changes in electrical resistance when a user presses on them with their finger(s). A sensor grid beneath each button senses when a button is pressed and sends an electrical signal to a processor which then determines if it was pressed correctly (If you press too hard) or incorrectly (if you don’t press hard enough).

Resistive TFT (Thin Film Transistor) displays rely on pressure to detect where the user is touching or clicking on the screen. A layer of conductive material lines the front glass surface, and when you press down on the display, your finger creates a bridge between two points that closes an electrical circuit. The computer then interprets this as a single click or tap.

The main difference between the two is that resistive touch panels are based on pressure while capacitive touch panels are based on electrical fields produced by the user touching the screen with his finger or another object such as a stylus pen or gloved hand.

Here are the major processes of capacitive touch panels manufacturing process:

• Cu-Sputtering
• Black Oxide
• Etching
• Sheet Lamination
• Sheet Laser
• Bonding FPC
• Cover Lamination
• Degassing
• Appearance Inspection
• Function Check
• Shipment

The Unique Advantages of MICRON Metal Grid Copper

• The first manufacturer in China that has passed the 3M patent authorization.
• The only one that can pass the high temperature and high humidity (temperature 85 degrees, humidity 85%) reliability test of the client, with excellent stability and environmental reliability.
• Ultra-narrow frame (86-inch multilateral outlet, the narrowest frame is 4.8mm, the widest <1cm).
• Foldable/large-area special-shaped touch (true borderless design).
• No optical problems (no moiré, black vision, rainbow pattern problems).
• Writing with precision active pen/pencil/electromagnetic capacitor pen.
• The industry’s first low-cost mold opening test, reducing customer proofing costs.

Equipment Used In The Production Of a Capacitive Touch Panel:

Capacitive touch panels are used in a many applications in large size. The manufacturing process for these devices requires manufacturers to carefully consider the quality assurance process. This is due to the fact that each panel is made up of many components and must be carefully inspected before being shipped out for final assembly.

The capacitive touch panel is made up of several layers, including an outer layer called the cover glass and an inner layer called the sensor film. The sensor film consists of several layers of metal, which are covered by a thin insulating layer. The cover glass is made from tempered glass or plastic and provides protection for the other layers within the capacitive touch panel.

The manufacturing process begins with the production of parts used in the assembly process, such as motherboards, cables, and connectors. These parts are then tested for quality assurance before being assembled into their final form. During this process, each part is closely inspected for any defects or damage that could cause problems later on down the line during assembly or usage by consumers.

The Capacitive Touch Panels Manufacturing Process are using the following Structure and content of the product:

• 1.The glass : The glass is used to create the outer layer of the panel, which is responsible for protection and durability.
• 2. The Conductive Layers: These conductive layers are used to detect a human touch on the surface of the panel through a process known as electrostatic induction.
• 3. The Resistive Layers: These resistive layers are responsible for detecting multiple touches on the panel at once through a process known as mutual capacitance sensing (MCS).
• 4. The Protective Layers: These protective layers are used to protect all other layers from damage during transportation and storage.

What Makes This Capacitive Touch Panel So Unique?

The main function of a Capacitive Touch Panel is to detect finger touches over its surface and provide feedback to the user through electronic signals. This technology uses electric fields and does not rely on any mechanical contact between conductive objects like resistive touchscreen devices do. Therefore, it is possible to build larger transparent surfaces that provide better visibility of what is behind them because there is no interference from the screen itself when pressed against it.

The following are some of the most common fundamental qualities of manufacturers of capacitive touch panels:

1. Against Glare (AG):

Tiny surface irregularities produced by anti-glare touch screens enhance screen visibility in bright environments or outside. It is created by applying regulated acid etching and chemical-based surface treatment.

2. AR (Anti-Reflective):

An optical coating is applied to the surface of an anti-reflective panel to lessen reflections. Through the process of vacuum evaporation, reflection is reduced. This strategy can also improve the effectiveness of conventional imaging systems since less light is lost due to less reflection.

3. Anti-Fingerprint (AF):

A screen’s surface is shielded against smearing and fingerprint imprints thanks to an anti-fingerprint coating. The touch panel is quicker to clean and more aesthetically pleasant because of the AF surface’s ability to remove smudges quickly. The surface of the AFP coating is hydrophobic.

4. Functions in the Rain:

The capacitive touch panel’s capacity to recognize finger touches even when the screen is wet is referred to as wet functionality. Due to electrostatic field distortion, the touch panel may not respond to wet palms. On the other hand, the capacitive touch panel features a sensor that determines whether the screen is wet or dry. It eliminates erroneous signals by switching from single-finger touch to multi-finger touch depending on dampness and dryness.

5. Use of Gloves:

Some capacitive touch displays may be used with covered gloves, while others cannot be used while wearing gloves. The electric field on the panel surface may change depending on the conductivity of the coating on the gloves. The performance of a screen may be affected by coated gloves depending on fingertip pressure or time.

Conclusion:

If you want to buy the right Capacitive Touch Panels for your project, Micron capacitive touch panels are your best choice which can provide customized designs to meet your needs. They are made with the best quality materials and are designed to last long. The capacitive touch panel can be used in many different applications such as medical equipment, industrial control panels, kiosks, and so on. You can use these touch screens in any place where you need an interactive display or human interface device.