Light-emissive device having co-evaporated cathode
First Claim
Patent Images
1. A method of manufacturing a light-emissive device, the method comprising:
- depositing an anode;
depositing a light-emissive region; and
depositing a cathode by co-evaporating barium metal and a fluoride or oxide of a low work function metal so as to reduce reflectivity of the cathode.
0 Assignments
0 Petitions
Accused Products
Abstract
A light-emissive device comprising: a light-emissive region (12); a first electrode (10) located on a viewing side of the light-emissive region for injecting charge carriers of a first type: and a second-electrode (11) located on a non-viewing side of the light-emissive region for injecting charge carriers of a second type; and wherein there is a reflectivity-influencing structure (13) located on the non-viewing side of the light-emissive region and including a light absorbent layer comprising graphite and/or a fluoride or oxide of a low work function metal.
-
Citations
8 Claims
-
1. A method of manufacturing a light-emissive device, the method comprising:
-
depositing an anode; depositing a light-emissive region; and depositing a cathode by co-evaporating barium metal and a fluoride or oxide of a low work function metal so as to reduce reflectivity of the cathode. - View Dependent Claims (2, 3, 4)
-
-
5. A light-emissive device comprising:
-
an anode; a light-emissive region; and a low or non-reflective cathode comprising a mixture of co-evaporated barium metal and a fluoride or oxide of a low work function metal. - View Dependent Claims (6, 7, 8)
-
Specification