Customized TFT LCD Touch Panel Solutions

What role does the touch panel play in the display?

The display cover is the first line of defense for the touchscreen system. It not only protects the LCD screen but also delivers a vivid, immersive visual experience through exceptional light transmittance. Its refined appearance also imbues the end product with a unique aesthetic. Through customized processes, we can also achieve high-end features such as anti-reflection, anti-fingerprint, and anti-glare, ensuring clear vision, smooth touch, and a comprehensive user experience.

A touch panel, also known as a touch screen, is a device that integrates input and display functions, allowing users to interact directly with content on the screen through their fingers or a stylus.

The scientific and professional integration of touch panels and cover plates provides users with a variety of options. Hot Display is dedicated to tailoring the most suitable touch solutions for you - whether it is consumer electronics, industrial equipment or smart home, we use professional craftsmanship and innovative technology to illuminate the world and protect the wonderful for each product.

Our customization capabilities

Cover Material: Tempered glass (up to 7H)/acrylic

Cover Shape:Support special-shaped cutting/opening/edging (2.5D, 3D)/transmittance

Cover color:Support different color silk screen (usually black or white)

Cover Thickness:0.55/0.7/1.0/1.1/1.8/2.0/3.0/4.0/5.0/6.0/8.0/10.0(mm) etc.

Light Transmittance:High light transmission efficiency, which directly affects the visual effect of the touch screen.

Opening the hole:  Can open through holes with a diameter of ≤10mm

Logo Printing：Support logo silk screen printing and multiple colors

Cover surface Treatment:AG anti-glare: A treatment that eliminates mirroring issues on the screen surface; AR anti-reflection: A coating applied to the cover glass to reduce reflected light, improving touchscreen visibility in sunlight; AF anti-fingerprint: A coating applied to the cover glass to increase the gloss of the glass surface; and a slippery coating that significantly reduces sliding resistance, preventing water droplets and fingerprints from remaining on the surface.

Customized touch function chip:  A touch sensor is a translator that translates the action of "touch" into a "language" that machines can understand. We offer customized sensor materials, thicknesses, FPCs, interfaces, and more.

Types of Touch Panels And Key Points To Consider

Capacitive touch panel:

It works by utilizing the human body's current sensing. The screen surface is coated with a transparent ITO layer, which creates an electrostatic field. When a finger (which carries bioelectricity) touches the screen, it draws a tiny current. The controller detects the current changes at the four corners or edges of the screen to accurately calculate the location of the touch point.

Features and application  of capacitive touch panels

Capacitive touch panels Features：

• Supports real multi-touch:It can recognize ten or more touch points at the same time, and perfectly supports complex gestures such as two-finger zooming, image rotation, and multi-key game operations.

• High sensitivity: No need to press hard, just a light touch will respond, and the operation is smooth and follow-up.

• High light transmittance: Typically >90%, much higher than the ~75% of resistive screens. This means a brighter screen, more vivid colors, and a clearer, more detailed display, with the touch screen layer barely noticeable.

• High Definition: Ideal for high-resolution displays (e.g. Retina, 4K).

• High and low temperature resistance: The operating temperature range is generally better than that of resistive screens (e.g. -20°C ~ 70°C).

• Dustproof and waterproof: The glass surface is easy to seal and can better support dustproof and waterproof design (such as IP67/IP68 rating).

Characteristics and application scenarios of capacitive touch panels

Capacitive touch panels are the most widely used touch technology today, the one we encounter most often in our daily lives. Capacitive touch technology's multi-touch capabilities, high definition, durability, and seamless user experience make it the preferred interactive technology for digital transformation in sectors ranging from consumer electronics to automotive, commercial, and even industrial applications. Its application continues to expand as costs decrease and specialized features such as anti-interference, wide operating temperature ranges, and glove operation are refined.

Resistive touch panel:

It consists of two layers of flexible plastic film coated with ITO (indium tin oxide) and a glass substrate, separated by a fine spacer. When a finger or stylus presses the screen, the two ITO layers come into contact, and the controller calculates the location of the touch point by detecting the voltage change.

Features of Resistive touch panel

• Core advantages: This is the most significant feature of resistive screens. Because they rely on physical pressure rather than electric field induction, they can be operated with any object, including fingers (bare or gloved), nails, ordinary styluses, plastic sticks, and more. This is a critical requirement in industries such as industry and medicine.

• Strong anti-interference ability: It is completely unaffected by non-conductive media such as water, oil, dust, and dirt. Even when there is liquid or dirt on the screen surface, it can still work stably without false touches.

• Low cost:

  The structure and manufacturing process are relatively simple, the technology is very mature, and it is one of the lowest-cost options among all touch technologies, making it very attractive for budget-sensitive projects.

• High Precision: (When using a thin stylus) With a thin hard stylus, very high positioning accuracy can be achieved, suitable for scenarios requiring precise input such as signing and drawing.

Application scenarios of resistive touch panels

Although capacitive touch technology has become mainstream in the consumer electronics field, resistive touch, with its advantages such as low cost, strong anti-interference ability, good environmental adaptability, and the ability to be operated with any object, remains an irreplaceable solution in fields such as industrial control, medical equipment, and the catering industry, especially in scenarios where gloves must be worn or in environments with high levels of dust, oil, and moisture.

How to choose a suitable touch solution

When choosing the right touch technology, it's important to consider multiple factors, including product positioning, usage environment, cost, and user experience. Resistive and capacitive touch technologies are complementary, and there's no absolute superiority or inferiority; the only consideration is suitability for the application scenario.

Learn more: Capacitive touch screens vs. resistive touch screens