| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve picture quality by lowering the factor of reflection between a touch switch and a liquid crystal display element rather than a conventional case by adhering the display screen of the liquid crystal display element and the rear side of input area of the transparent touch switch through a transparent adhesive agent. SOLUTION: A liquid crystal layer is formed and held between two transparent glass boards 1a and 1b, and a deflection board 2a and a deflection board 2b with reflection board are stuck on the respective transparent boards 1a and 1b. Besides, a driver IC 3 for driving liquid crystal is mounted at the terminal part of the transparent board 1a. On the display screen of that liquid crystal display element, an analog resistant film type touch switch 4 using glass and a film is adhered by a transparent adhesive agent 5. The entire rear side of the input area is coated with the transparent adhesive agent 5 at least. In this case, when the transparent adhesive agent 5 of refraction factor from 1.47 to 1.57 after hardening, the refraction factor of glass boards 1a and 1b is almost equal with 1.52, the reflection between the touch switch 4 and the liquid crystal display element is almost eliminated and picture quality is improved.</p> |
