TOUCHSCREEN BASED ON TOTAL-REFLECTION LIGHT WAVE TECHNOLOGY, TOUCH APPARATUS, AND TOUCH DISPLAY APPARATUS USING TOUCHSCREEN

摘要

A touchscreen based on a total-reflection light wave technology comprises a transparent touch substrate, a first light guide component, a touch control light source, a second light guide component, and a light receiving apparatus. The touch substrate comprises an upper surface and a lower surface opposite to the upper surface in parallel, and the upper surface is a touch surface. The first light guide component is disposed below the lower surface of the touch substrate. The touch control light source is disposed below the lower surface of the touch substrate and is close to the first light guide component. The second light guide component is disposed below the lower surface of the touch substrate. The light receiving apparatus is disposed below the lower surface of the touch substrate. The light receiving apparatus and the touch control light source are separately located below the two opposite sides of the touch substrate. The light receiving apparatus right faces the second light guide component. The touch control light source right faces the first light guide component. The touchscreen has the advantages that a touch suspension height does not exist, the strong light interference resistance capacity is high, wide and high edge protrusions do not exist and the narrow edge design is facilitated. The present invention also provides a touch apparatus and a touch display apparatus using the touchscreen.