The present invention relates to a theater having provided with a screen having curvature, and a chair control system for same and, more specifically, to a theater comprising: a screen having predetermined curvature in the long axial direction or the short axial direction; and theater chairs provided so as to face the center of the screen, wherein the screen is tilted. Therefore, by providing the angles of theater chairs to vary with respect to the location in a theater having provided with a screen that has curvature in the horizontal axis as well as the vertical axis, the present invention enables securing of an optimal field of vision for audience.

The present invention relates to a method of providing image data based on cloud streaming. In particular, the method uses memory space of a terminal, prestores image data in the terminal, captures an execution screen regarding execution of a specific application, extracts video content from the prestored image data based on the captured execution screen and information regarding the execution screen, simultaneously encodes individual items of the extracted video content, and provides the encoded video content to a screen. Thus, according to the present invention, usage of the cloud streaming server and the network may be reduced by an amount commensurate with the resources utilization of the terminal. Network load may also be reduced when a live video or a VOD video is not being watched, and the rich GUI experience may be guaranteed in a standby state.

The present invention relates to a variable screen system for providing audience with more enhanced immersion by having a content image projected on a screen that is in the shape of a curved surface. More particularly, the present invention relates to a variable screen system comprising: a support for fixing a frame on which a screen is formed; and a theater server for controlling the support and thereby changing the curvatures of the frame or the screen formed on the frame.

The present invention relates to a screen-holding structure, and more specifically to a screen-holding structure to withstand the weight of the screen by means of a screen holding apparatus for the entire region or a part of the screen to prevent the phenomenon in which a screen held by a frame sags downward due to the weight of the screen. According to the present invention, the curved surface of the screen can be smoothly maintained by minimizing the downward sagging phenomena of the curved screen, thereby allowing content image to be projected onto the screen without distortion, and consequently allowing a viewing environment having a high sense of immersion and enhanced stereoscopic effect to be provided to an audience.

The present invention relates to a curved screen support comprising a plurality of vertical bars arranged vertically from the ground, and a plurality of horizontal bars attached to the vertical bars at one end in the horizontal direction with respect to the ground, wherein horizontal bars are characterized in that the line connecting the other ends of the horizontal bars arranged on the same vertical axis has a curved shape of a set curvature, and the line connecting the other ends of the horizontal bars arranged on the same horizontal axis has a curved shape of set curvature. Therefore, according to the present invention, a curved screen having a curvature along the horizontal axis as well as the vertical axis can be stably held, and by controlling the curvature and angle of the curved screen, enhanced life-like effects can be provided to an audience.

The present invention relates to a screen, and more specifically to a screen, to which a content images are projected, comprising screen regions each having a mutually different reflectance. According to the present invention, with respect to implementing a screen having a non-flat surface, as the content images can be projected onto all screen regions while maintaining uniform brightness, an audience can be provided with a content viewing environment by means of screens having a variety of shapes, while satisfactorily maintaining the quality of the of the projected a content images.

Some embodiments of the present disclosure provide a system for controlling a physical effect in a theater, the system comprising: an audio/video (A/V) component, the A/V component being capable of processing A/V media that is associated with data indicating when the physical effect should be activated; a show control device communicably linked to the A/V component, the show control device being capable of translating the data into one or more signals that are capable of causing the physical effect to be activated; and a control assembly communicably linked to the show control device, the control assembly capable of receiving the one or more signals and activating the physical effect in response.

A projection zoom lens is constituted by: a negative first lens group; a positive moving second lens group; a positive moving third lens group; a positive final lens group; at least one lens group positioned between the final lens group and the third lens group; and an aperture stop provided between adjacent moving lens groups. The aperture stop is a variable stop, of which the aperture diameter changes such that the numerical aperture of the zoom lens becomes constant. The zoom lens satisfies Conditional Formulae below:
2.8<Bf/Im(1)
L/Im<12(2) wherein Bf is the back focus of the entire system at the reduction side at the wide angle end, Im is the maximum effective image circle diameter at the reduction side, and L is the distance from the lens surface most toward the magnification side to the lens surface most toward the reduction side when the projection distance is infinity.