Resistive LCD is an inductive liquid crystal display device capable of receiving input signals from contacts and other inputs. The resistive LCD locates the touch point through the pressure difference between two layers of conductive materials (such as ITO coatings). These two layers of materials are respectively coated on the opposite surfaces of a film and glass. When a touch operation occurs, the ITO under the film can contact the ITO coating on the glass layer, resulting in a change in resistance, which then triggers signal transmission and processing.
Simple structure, lower cost
Can be activated by any object that applies pressure due to its pressure-applying function
Resistant to water/dirt
Lower power consumption
Different input methods
Resistive LCD supports multiple methods such as fingers, styluses, or other objects that apply pressure, while capacitive LCD display only supports body touch.
Different surface materials and durability
Resistive LCD is film+glass, capacitive is glass+glass/glass+film; surface hardness differs, resistive is easily damaged when cracked, while capacitive can still work with small cracks.
Different anti-interference abilities
Capacitive LCD display is more sensitive and thus has poorer anti-interference abilities.
Touch detection
When a user touches the screen with a finger or other object, the two layers of conductive materials contact at the touch point, causing a change in resistance at that point.
Signal transmission
The change in resistance is detected by sensors and converted into electrical signals, which are then transmitted to the processor via conversion circuits.
Position calculation
The processor receives the signals and performs computations to determine the exact location of the touch point (X, Y coordinates).
Interface response
Based on the location information of the touch point, the system drives the corresponding connected devices or software interfaces to complete the user's operational instructions.
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