| 摘要 |
PROBLEM TO BE SOLVED: To provide a new solid light emission device with a little cross talk which can prevent decrease of aperture rate of pixels. SOLUTION: On one surface of a substrate 1, a row of plural rear face electrodes 4 is installed, and a strong electric field drift layer 6 is formed so as to cover the plural rear face electrodes 4, a luminous layer 2 is laminated on the strong electric field drift layer 6, and a row of plural transparent electrodes 3 is installed on the luminous layer 2 in a crossing direction to the rear face electrodes 4. The strong electric field drift layer 6 has also a function to supply electrons to the luminous layer 2 in order to illuminate the luminous layer 2 by the drift of the electrons injected from the rear face electrodes 4 when a voltage is applied between the transparent electrodes 3 and the rear face electrodes 4 taking the transparent electrodes 3 as positive electrodes. As for the strong electric field drift layer 6, the region almost overlapped with the rear face electrodes 4 is composed of a porous semiconductor layer 6a of an oxidized porous polycrystal silicon layer, and the rest of the region is composed of a semiconductor layer 6b of a polycrystal silicon layer. |
