DE1806573A1 - Information display device - Google Patents

Description

Dipl.-IB «· Dr.-lay. HEINZ NICKELS 1806573

, .ATHWTAWWAIiT ^

Detmolderstrasse 26th

H / MÜ 18.9.1968

Pirma Heinz Nixdorf, 479 Paderborn, Pontanus-Str. 55

"Information display device"

The invention "relates to an information display device, "at which the picture on the screen according to the usual Interlace is written to be halftone dot Display of texts in 3? Form of digits, characters and letters «

Display devices for the aforementioned display are in the

009821/0275

schiedeiisten design types and forms as "known. To flicker-free as possible indicator" belonging to the art to get these devices to the screen, it has gone over _for a fluorescent tube with a long glowing phosphorus to use "The relatively rapidly decaying color components of the Light are darkened by a filter.

The disadvantage as described above in a display device is that the image _f is colored and thus acts tiring for the eye of the observer. Another disadvantage can be seen in the fact that a not inconsiderable part of the light output is lost »

Ultimately, it must be mentioned as a disadvantage that the information or the like appearing on the screen with single-line font width can be displayed, whereby the font display in terms of its legibility in many Cases leaves much to be desired.

The inventor has become aware of the aforementioned deficiency set the task of disclosing an information display device in which the aforementioned disadvantages do not exist are »The task set is achieved according to the invention in that the texts appearing on the screen In

00 98 21 / 027B

double line width are shown as line width and the screen has a dark frame grille in front of it to prevent flicker «

Another feature of the invention can be seen in

that the mesh size of the frame grid compared to the Line grid of the screen is made smaller *

The following description serves to explain the subject matter according to the invention, one embodiment of which is shown in the drawing. It shows

Fig. 1 is a perspective bar position of the viewing device}

Fig. 2 the frame grid and

Fig. 3 Display device according to Fig. 1 with attached frame grille.

Bas the housing of the sighting device known to be on which is not to be discussed in more detail, is denoted by 1. The information that appears on the screen 2 is Numbers 6 or the like are written using the usual interlace method, i.e. the even-numbered and odd-numbered ones Lines of the image alternate, according to the invention, the digits 6 or the like are double the line width as

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- 4 written as line width (see Pig. 1).

The double line width results in correspondingly fine pitch bfti a highly readable S _c hriftdarstellung in contrast to the known single-line font width.

The eye of the observing person can, however, still fixate the changing lines in the writing represented according to the invention at a distance that is customary in television, whereby the eye feels a flickering. As Workaround e the screen 2 is set, the frame grid 3 according to the invention goal, which has a fine dark formed grid * The distance between the individual meshes 4 of this frame grating 3 is according to the invention is substantially smaller compared to the distance between the individual line screens 5 of the screen 2 _e Due to the attached frame grille 3, the restless flickering on the screen 2 disappears. The frame grille 3 is designed in such a way that - only a slight amount of brightness is lost.

009821/0275

Claims (1)

Claims 1 © Information display device, "in which the image on the Screen is written according to the usual interlace method, for the display of text in the form of a grid point, in Form of digits, characters and letters, d u r c h marked that the texts appearing on the screen (2) are double the width of the line are shown as line width and the. Screen (l) a front dark frame grille (3) to prevent of flicker » 2β information display device according to claim 1, as through characterized in that the mesh size (4) of the frame grid (3) is smaller than the line grid (5) of the screen (2) is. Dr. Heinz Nickels patent attorney 009821/0275