CN202904214U

CN202904214U - DLP seamless butt-joint screen

Info

Publication number: CN202904214U
Application number: CN 201220598723
Authority: CN
Inventors: 徐金龙
Original assignee: BEIJING ZDVISION TECHNOLOGY Co Ltd
Current assignee: BEIJING ZDVISION TECHNOLOGY Co Ltd
Priority date: 2012-11-14
Filing date: 2012-11-14
Publication date: 2013-04-24
Anticipated expiration: 2022-11-14

Abstract

The utility model provides a DLP seamless butt-joint screen, and belongs to the technical field of DLP screens. Uniform through-holes are distributed on the peripheral edges of the screen, wherein the dimensional precision among the through-holes and between the through-hole and the edge of the screen is within 0.04mm. A titanium alloy pin is U-shaped, wherein two parallel ends of the titanium alloy pin penetrate through two through-holes of adjacent screens and are fixed on a supporting plate, and the closed end of the titanium alloy pin connects the two screens together in a butt-joint manner through the through-holes of the adjacent screens. According to the utility model, seamless butt-joint of DLP rear projection butt-joint screens is realized, and the physical gap between the screens reaches 0mm; optical seam has no gap beyond 3 meters, and a plurality of screens are turned into an integral whole after butt-joint; expansion and contraction of the screens slide within the structure of a box body along with a fixing device of the screens, and the plurality of the screens get bigger or smaller synchronously because of expansion and contraction; and gaps never emerge among the screens.

Description

A kind of DLP slitless connection screen

Technical field

The utility model relates to a kind of DLP slitless connection screen, belongs to DLP Screen Technology field.

Background technology

Existing DLP screen has screen frame, and sticks with glue on screen frame, and this has just caused unavoidable physics piece, and visually the larger splicing seams of piece black surround between screen and the screen is large, and side sees screen edge, can see thickness of glass.The physics splicing seams of existing DLP giant-screen because the technique that ordinary screen forms is restricted, causes the physics piece to be difficult to reduce between 0.4mm～1mm.(as depicted in figs. 1 and 2) mostly conventional DLP giant-screen is to be comprised of one group of Fresnel Lenses, black cylindrical mirror, a series of glass and screen frame.Rear projection screen cylindrical mirror and Fresnel Lenses are clamped between a large scale glare proof glass and the large scale white glass, and then the end face at lens and glass is fixed on the screen frame with various glue, form one independently individual.Then, single screen individuality is fixed on the casing, splices.This structure DLP giant-screen exists splicing seams larger, and has larger physical-gap at the outside surface edge joint position, and screen physics splicing slit generally can't be eliminated greater than 0.4 millimeter optics splicing black lines.Screen nexine and outer field glass can lose 25% brightness, and the green of glass can make the imaging look of color on screen become, and the reduction color is unsaturated or inconsistent.Phenomenon causes watch crystal to come unglued to come off, have potential safety hazard owing to expand with heat and contract with cold etc.

Summary of the invention

The purpose of this utility model is to have larger physical-gap in order to solve existing DLP giant-screen at the outside surface edge joint position, the problem that the optics splicing black lines can't be eliminated, and then a kind of DLP slitless connection screen is provided.

The purpose of this utility model is achieved through the following technical solutions:

A kind of DLP slitless connection screen, comprise: screen, back up pad, the titanium alloy pin, lock-screw and casing, described back up pad is fixedly connected with casing, be distributed with uniform through hole on the edge around the described screen, between through hole and the through hole, dimensional accuracy between the edge of through hole and screen is within 0.04 millimeter, described titanium alloy pin be shaped as U-shaped, the parallel two ends of titanium alloy pin is passed two through holes of adjacent screen and is fixed on the back up pad by lock-screw, the blind end of titanium alloy pin is docking together two screens through the through hole of adjacent screen

The utlity model has following advantage: the utility model has been realized DLP back projection docking screen slitless connection, and the screen physical-gap reaches 0 millimeter; The optics piece is seamless outside 3 meters, and a plurality of screens are an integral body after the screen docking; Expanding with heat and contract with cold along with sliding between the stationary installation of screen and the body structure of screen, a plurality of screens expand with heat and contract with cold for becoming synchronously large or dwindling; Can not produce the slit between the screen, the screen docking technique has removed the glass of nexine with 4 millimeters of skins, and projection brightness and color can revert to imaging on the screen fully.The utility model is applicable to the docking of 50 inches, 60 inches, 67 inches, 70 inches, 80 inches or 100 inches different size screens.

Description of drawings

Fig. 1 and Fig. 2 are the structural representation of existing screen;

Fig. 3 is the cross-sectional view of DLP slitless connection screen of the present utility model;

Fig. 4 is the one-piece construction synoptic diagram of DLP slitless connection screen of the present utility model;

Fig. 5 is the structural representation that screen docks with screen.

Reference numeral 5 among the figure is screen docking points.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail: present embodiment is implemented under take technical solutions of the utility model as prerequisite, has provided detailed embodiment, but protection domain of the present utility model is not limited to following embodiment.

Such as Fig. 3～shown in Figure 5, a kind of DLP slitless connection screen that present embodiment is related, comprise: screen 1, back up pad 2, titanium alloy pin 3, lock-screw 4 and casing 6, described back up pad 2 is fixedly connected with casing 6, be distributed with uniform through hole 7 on the edge around the described screen 1, between through hole 7 and the through hole 7, dimensional accuracy between the edge of through hole 7 and screen 1 is within 0.04 millimeter, described titanium alloy pin 3 be shaped as U-shaped, titanium alloy pin 3 parallel two ends are passed two through holes 7 of adjacent screen 1 and are fixed on the back up pad 2 by lock-screw 4, and the blind end of titanium alloy pin 3 is docking together two screens 1 through the through hole 7 of adjacent screen 1.

Slitless connection screen of the present utility model is that the screen combination by a plurality of formed objects forms; Concrete combined method is: (such as Fig. 3～shown in Figure 5) horizontal and vertical unlimited docking splicing of screen, the screen surrounding is along being distributed with uniform through hole, between the Kong Yukong, the dimension precision requirement at Kong Yuping edge is within 0.04 millimeter, docking between screen and the screen adopted the titanium alloy pin that screen is docked mutually and coupled together, the titanium alloy pin is shaped as the U-shaped structure, the parallel two ends of titanium alloy pin is passed two through holes of adjacent screen, the blind end of titanium alloy pin is docking together screen through the through hole of adjacent screen, titanium alloy pin blind end center pit closely cooperates apart from the hole with two adjacent screens, two parallel openings of titanium alloy pin are fixed on a kind of metal profile, pin with lock-screw between titanium alloy pin and the back up pad, screen, the titanium alloy pin, lock-screw and the as a whole slitless connection screen that is of back up pad combination, the back up pad in the screen unit is connected with body structure.The utility model is the technical scheme of docking through physics between the screen, make mosaic screen be fused to integral body, variation along with environment temperature, the titanium alloy pin take lock-screw as axle with screen up and down or swing (seeing Fig. 4), for integral translation, can not become large or the screen skin glass comes off and damages because the heat expansion problem produces screen slots between screen and the body structure.

The above; it only is the better embodiment of the utility model; these embodiments all are based on the different implementations under the utility model general idea; and protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims

1. DLP slitless connection screen, comprise: screen (1), back up pad (2), titanium alloy pin (3), lock-screw (4) and casing (6), described back up pad (2) is fixedly connected with casing (6), it is characterized in that, described screen (1) is distributed with uniform through hole (7) on the edge all around, between through hole (7) and the through hole (7), dimensional accuracy between the edge of through hole (7) and screen (1) is within 0.04 millimeter, described titanium alloy pin (3) be shaped as U-shaped, the parallel two ends of titanium alloy pin (3) is passed two through holes (7) of adjacent screen (1) and is fixed on the back up pad (2) by lock-screw (4), and the blind end of titanium alloy pin (3) is docking together two screens (1) through the through hole (7) of adjacent screen (1).