A process for manufacturing a transport vehicle laminated glazing includes placing in succession to form a stack: a first glazing, a first lamination interlayer made of polymeric material, a second lamination interlayer made of polymeric material and, in a reserve produced in the latter, a flexible OLED element or screen, which is directly extended toward one edge of the glazing by a connection element that is connected thereto and that extends out of the stack, a third lamination interlayer made of polymeric material, and a second glazing, then in subjecting the resulting assembly to a vacuum at room temperature so as to remove air from the stack, then heating the resulting assembly to a temperature of at most equal to 85° C. while continuing to subject it to a vacuum.