Profile: Graphic Display Systems, Inc. designs and builds custom membrane switches. Our custom membrane switches have proven themselves repeatedly in field applications and in the harshest environmental testing. Our solutions & technologies are used by various customers in the medical, military, automotive, agricultural, industrial and consumer industries. The non-tactile membrane switch is typically constructed as two circuit layers separated by a spacer. The top and bottom layer can both have circuit patterns that are shorted together, or one layer of circuitry where interlocking fingers are electrically connected by a shorting bar. There is no tactile or click as part of the actuation. Because there is no tactile response, it is common for the application to have an audible response such as a beep, or a light, so that the operator is aware that the contact has been made. We specialize in designing and building membrane switches that need to withstand harsh environments, or require a higher level of reliability than typical silver on polyester switches. We can use a variety of circuit configurations and materials that are proven to last longer & perform reliably. Tactile membrane switches provide tactile feedback to the users, assuring them that the circuit connection was made. We offer three basic options for tactile feedback including metal domes, heat formed polymer domes, and elastomeric membrane keypads. Each of these options offer a unique set of features and advantages, as well as cost tradeoffs. Each option must be configured to meet the performance requirements of the end use. This often requires specific combinations of materials and assembly techniques to assure the reliability of the tactile switch.