A touch sensitive active matrix display device, the device comprising: a display having a viewing surface; and a touch sensitive sensor integrated with and under said display, said touch sensitive sensor comprising a flexible substrate, a lower conductive layer on said flexible substrate and an upper conductive layer separated from said lower conductive layer by a spacer arrangement; and wherein: said touch sensor is operable by touching said viewing surface of said display; wherein said display comprises electronic paper display medium and has a backplane comprising an active matrix, said active matrix having an array of field-effect transistors comprising an organic semiconductor, said transistors configured to control said display; and in that said transistors of said backplane are disposed directly onto said upper conductive layer without a separate substrate to support the backplane, with a dielectric isolation layer deposited between said upper conductive layer and the electroactive layers of the backplane, with said dielectric isolation layer providing electrical insulation between said upper conductive layer and the electroactive layers of the backlane; whereby said touch sensitive active matrix display device is a combined display and touch sensitive sensor device that is flexible as a whole. a display having a viewing surface; and a touch sensitive sensor integrated with and under said display, said touch sensitive sensor comprising a flexible substrate, a lower conductive layer on said flexible substrate and an upper conductive layer separated from said lower conductive layer by a spacer arrangement; and wherein: said touch sensor is operable by touching said viewing surface of said display; wherein said display comprises electronic paper display medium and has a backplane comprising an active matrix, said active matrix having an array of field-effect transistors comprising an organic semiconductor, said transistors configured to control said display; and in that said transistors of said backplane are disposed directly onto said upper conductive layer without a separate substrate to support the backplane, with a dielectric isolation layer deposited between said upper conductive layer and the electroactive layers of the backplane, with said dielectric isolation layer providing electrical insulation between said upper conductive layer and the electroactive layers of the backlane; whereby said touch sensitive active matrix display device is a combined display and touch sensitive sensor device that is flexible as a whole. said touch sensor is operable by touching said viewing surface of said display; wherein said display comprises electronic paper display medium and has a backplane comprising an active matrix, said active matrix having an array of field-effect transistors comprising an organic semiconductor, said transistors configured to control said display; and in that said transistors of said backplane are disposed directly onto said upper conductive layer without a separate substrate to support the backplane, with a dielectric isolation layer deposited between said upper conductive layer and the electroactive layers of the backplane, with said dielectric isolation layer providing electrical insulation between said upper conductive layer and the electroactive layers of the backlane; whereby said touch sensitive active matrix display device is a combined display and touch sensitive sensor device that is flexible as a whole.