This product is mainly designed for industrial applications. To address touch failure issues caused by water, oil, dust and other contaminants, we have optimized the sealing performance of the touch module, achieving an IP65 or higher waterproof rating. It can be reliably deployed even in outdoor scenarios. Meanwhile, we adopt industrial-grade touch ICs for superior touch performance and stability.
How to Solve the Poor Vibration Resistance of Touch Modules in Industrial Applications? 1.The FPC bonding end adopts secondary hot-pressing with high temperature and high pressure using ACF conductive adhesive to improve the bonding strength of the bonding interface. The bonding area is reinforced with both a reinforcing steel sheet and a PI reinforcing film for double-layer protection, which restrains FPC bending displacement and micro-slip under high-frequency vibration.
2.The bonding area is fully encapsulated by dispensing UV reinforcing adhesive, which isolates moisture and vibration-induced tensile stress to prevent delamination and peeling at the bonding position. The conductive area of golden fingers is avoided, with encapsulation only applied to the edges and bending stress sections.
3.The FPC outlet end adopts an arc-shaped buffer bending design with a reserved S-shaped stress relief section to avoid sharp right-angle hard bending. A slack allowance is reserved for the FPC during overall equipment assembly to eliminate pre-installation tension and prevent continuous pulling force applied to the bonding position under long-term vibration.
4.A locking socket is adopted at the connector end to replace the conventional lockless straight plug interface. After the FPC plug is inserted, it is mechanically locked to eliminate intermittent contact failures caused by slight plug loosening under vibration.
5.Black explosion-proof ink is printed on the back of the cover glass, combined with a laminated PET explosion-proof film on the rear side. In case of glass breakage, fragments will adhere together without splashing. Meanwhile, this structure buffers impact energy and prevents the lamination layer from being punctured by single-point impact.
How to Solve Problems Such as Cover Glass Shattering from Impact and Bubbling & Delamination of the Lamination Layer? 1.Black explosion-proof ink is printed on the back of the cover glass, which is further fitted with a PET explosion-proof film on the rear side. It keeps broken glass fragments adhered without splashing when impact occurs, buffers impact energy, and prevents the lamination layer from being punctured by single-point impact.
2.High-viscosity, high and low temperature resistant industrial-grade OCA optical adhesive with great ductility and anti-creep performance is adopted. It can offset interlayer stress generated by thermal expansion, contraction and tiny deformation of different materials under long-term vibration.
3.The lamination process adopts a high-pressure defoaming procedure to ensure no tiny air bubbles remain at the bonding interface. The finished modules undergo pre-treatment via high-low temperature cycling and vibration aging to release internal stress inside the adhesive layer in advance, preventing bubble precipitation and interlayer delamination during subsequent operation.
4.UV edge-sealing adhesive is dispensed around the four sides of the screen to fully seal and reinforce the bonding edges between the cover glass and the sensor. It blocks the intrusion of moisture and dust, restrains the edges of the lamination layer, and prevents delamination and bubbling starting from the corners and edges under vibration.
5.We adopt the glass sensor touch solution instead of conventional thin PET sensors to enhance the tensile and deformation resistance of electrodes, reducing the risk of ITO circuit breakage and electrode displacement under stress.
How to Improve Touch Accuracy of Touch Modules for Glove Operation in Industrial？ 1.The TX driving voltage of the screen is increased. While conventional consumer screens adopt a driving voltage of around 3.3V, we upgrade it to a high driving voltage ranging from 7V to 12V for industrial scenarios. This enhances capacitive sensing penetration capability, enabling effective coupling capacitance through thick PU gloves, thin rubber gloves and cotton work gloves to support direct touch operation with gloves worn.
2.The touch sampling frequency is raised to boost the signal-to-noise ratio, filter weak clutter interference caused by glove materials, and eliminate touch stuttering, disconnection and drift issues.
3.The built-in Glove Mode of the touch IC is enabled. The algorithm automatically amplifies weak sensing signals and lowers the trigger threshold to adapt to subtle capacitance changes under thick insulating media.
4.The sensor wiring design is optimized by enlarging the area of sensing electrodes and rearranging the layout of TX/RX channels, which expands the capacitive sensing coupling area and amplifies valid sensing signals under glove-operated conditions.
5.We lower the touch trigger threshold and increase signal gain. Parameter calibration is carried out separately for three insulating materials including cotton yarn, rubber and PU. This ensures effective touch activation with thick gloves while preventing false touches and signal jitter.
6.Adaptive noise filtering and dynamic baseline calibration functions are enabled. Significant baseline offset often occurs when operating with thick gloves. Real-time dynamic baseline refreshing continuously corrects capacitive drift to prevent failures during long presses and sliding operations.
7.Adaptive touch area recognition is added. Thick gloves lead to a larger contact area during operation, and the algorithm adapts to the recognition logic for large touch points, preventing the system from mistakenly identifying valid touch commands as interference signals and shielding them directly.
FAQ 1.Q: Why can your touch screen support stable glove touch? A: We increase the TX driving voltage to 7V~12V, raise the touch sampling frequency and enable the built-in Glove Mode of the touch IC. Combined with optimized sensor electrode layout and professional parameter calibration for cotton, rubber and PU gloves, the touch module can capture weak capacitive signals through thick insulating gloves for accurate touch control.
2.Q: Will frequent vibration in industrial equipment cause loose FPC or touch failure? A: Multiple anti-vibration designs are adopted, including secondary high-temperature and high-pressure ACF bonding, double-layer reinforcement with steel sheet and PI film, UV full encapsulation on bonding area, arc S-shaped stress relief FPC design and locking-type connectors, which effectively avoid poor contact caused by vibration and pulling force.
3.Q: How do you solve cover glass splashing and lamination bubbling problems after impact? A: Black explosion-proof ink and PET explosion-proof film are applied on the back of cover glass to bond broken fragments and buffer impact force. High-viscosity temperature-resistant OCA adhesive, high-pressure defoaming process and high-low temperature vibration aging pre-treatment prevent layer bubbling and delamination. Edge UV sealing further blocks moisture and dust to avoid edge peeling under vibration.
4.Q: What material do you use for the touch sensor and what are its advantages? A: We adopt glass sensor instead of ordinary PET sensor. It features excellent tensile and deformation resistance, greatly lowering the risk of ITO line breakage and electrode displacement under long-term vibration and thermal stress in complex industrial environments.
5.Q: How to guarantee stable touch performance for long-time sliding and long pressing with gloves? A: We equip the module with adaptive noise filtering, dynamic baseline calibration and adaptive large touch point recognition algorithms. The system corrects capacitive drift in real time and identifies large contact areas from gloved fingertips to effectively prevent touch drift, stuttering, disconnection and operation failure.
