The ornamental design for a videoconferencescreen, as shown and described.
FIG. 1 is a front elevational view of a video conference screen according
to the present invention and disposed in a video conference cabinet
illustrated by the dashed lines;
FIG. 2 is a fragmentary enlarged view of a transition pattern between
opaque borders and transparent video screen portions of the video
conference screen hereof, the transition pattern surrounding each of the
transparent portions of the screen; and,
FIG. 3 is a fragmentary enlarged view of the transition pattern of a second
embodiment of my new design, it being understood that the complete front
elevational view of the second embodiment is identical to FIG. 1.
The dashed lines of the drawing figures illustrate environmental cabinet
structure for the video conference screen hereof and which cabinet
structure forms no part of the present design.