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US 5,268,828 AGranted
Illuminant display device
AssigneeTakiron Co., Ltd.
InventorMasanobu Miura
Life of this patent
Estimating the term…
Abstract
An illuminant display device having a wired substrate with a large number of LEDs mounted thereon, and a case frame member for accommodating the wired substrate. An illuminant dot being composed of a plurality of the LEDs and a plurality of the illuminant dots being aligned in a horizontal direction in each case frame member. A plurality of the illuminant display devices are arranged in a matrix form to form a large-scale display unit. Alignment of the illuminant display devices in a horizontal direction is easily and accurately maintained.
Claims7
An illuminant display device comprising:
- a wired substrate;
- a plurality of LEDs mounted on said substrate;
- a case frame member, said substrate being accommodated in said case frame member;
- a plurality of independent illuminant dots each being composed of more than one of said LEDs, said illuminant dots being disposed along said substrate;
- means for operating said illuminant dots independently of one another;
- at least two stop member insertion holes, each of which has a cross section enlarged vertically toward a rear end portion thereof, and each of which is formed in a rear portion of said case frame member;
- at least one spacer having a wedge-shaped cross-section interposed between said rear portion of said case frame member and a box member for accommodating a plurality of said case frame members so as to arrange said case frame members in an inclined state with respect to said box member;
- stop members threadedly engaged through said stop member insertion holes at right angles to said box member to fix said case frame members to said box member.
5 more elements
Dependencies are inferred from the claim text.