| 摘要 |
<p>PURPOSE:To attain a bright display with a high aperture rate of each picture element, by arranging thin film transistors TRs, which switch a liquid crystal, into an array on one substrate constituting a display panel and arranging a photodetecting circuit on the other substrate so that this circuit faces the array. CONSTITUTION:An MOS TR constituted with a gate electrode 13, a gate insulating film 14, a semiconductor film 15 consisting of amorphous material or the like, a source electrode 16, and a drain electrode 17 is formed on a substrate 11 consisting of a transparent insulating material, and a liquid crystal driving transparent electrode 18 is connected to the electrode 17. A color filer 19 is provided on the MOS TR and the electrode 18 for every picture element. Another MOS TR constituted with a gate electrode 20, a gate insulating film 21, a semiconductor film 22, a source electrode 23, and a drain electrode 24 is formed on a substrate 12 which faces the substrate 11 and consists of a transparent insulating material, and a diode 25 is connected to the electrode 24 and is connected to an earth electrode 27 through an ohmic junction layer 26. The liquid crystal driving array and the photodetecting array are formed independently of each other in this manner to attain a bright display with a high aperture rate of each picture element.</p> |
