Response time may refer to any of the following:
1. The response time is the total elapsed time from when a request is made to when it is completed. For example, a company may show an expected response time for an e-mail response as eight hours. With an eight-hour response time, you can expect to wait up to eight hours to receive a response.
2. With an LCD (liquid-crystal display), a response time is how many frames are displayed each second. Response time is important for users considering an LCD and plans on using that display for full-motion video. An LCD with a slow response time can result in ghosting.