| 摘要 |
1,166,658. Temperature indicators. TEXAS INSTRUMENTS Inc. Oct.17, 1966 [Oct. 24, 1965], No.46248/68. Heading G1D. [Also in Divisions G5 and H1] A display device comprises thermo-chromic layer 31 over heating elements 51 to 55 for example. The thermo-chromic material may be CuI, AgI, HgI, TII, HgBr, T1Br, HgI 2 , PbI 3 , HgBr 2 , Cu 2 HgI 4 , Ag 2 HgI 4 , Pb 2 HgI 4 , Hg 2 HgI 4 , TI 2 HgI 4 , Cu 2 PbI 4 , Ag 2 PbI 4 , TI 2 PbI 4 , Hg 2 PbI 4 , Cu(BO 2 ) 2 , PbCrO 4 , HgO, Di(NN-diethylene diamine), and copper perchlorate for instance. Reference is also made to oxides, sulfides, chromates, borates, and organic materials. The heating elements may be resistors of tin oxide or tantalum formed by evaporation, sputtering or etching on a ceramic substrate or diode-resistor pairs diffused into, or epitaxially deposited upon, semi-conductor mesas formed in Si layer 40. |
