● 1987 1 turn1992 In February, the digital film projector technology was in the early stage.

● 1987 The technicians of Hughes Company in the United States first invented the liquid crystal light tube to display images and high-resolution graphics. Later, TexasInstruments (hereinafter referred to as "TI") developed the first digital micromirror device (DMD) in 1988. The principle of this device is to switch and drive multiple groups of lens films according to the digital signals "0" and "1", so that they are linked at high speed and deflected at a certain angle, thus reflecting the bright color and fineness of image light. At the beginning of 1990, Germany released the feasibility report of developing laser digital projector for the first time, and manufactured the first stable laser image projector in February 1992. 1992 At the beginning of this year, Hughes Company of America cooperated with JVC Company of Japan to develop a projector system based on ILA technology. ● May1992-May 1997, Pre-transmission and projection system test of digital movies, digital projector market test stage.

●1992 in may, American Pacific bell company started the project of "experimental system of film future technology". As part of the experiment, they tried to transmit the feature film Bugsy in high-definition format through the telephone network. At the end of the year, American AMC cinema projection system tested Pacific Bell's "Future Film System" with the film "sDraculla of Bramstock".

● 1994 65438+ 10, American GLV projection technology company Echelle (later renamed as SiliconLightMachines company) was established to develop a digital projector system based on laser grating scanning technology. In July of the same year, seven United Art theaters in the United States began to use Pacific Bell's "Future Film Technology System". At the end of the year, Pacific Bell's "Future Film Technology Experiment" project tried to transmit the final live broadcast of NBA from Detroit to three other distant cities.

●1In August, 1995, Macrovision, an American copyright protection company, successively carried out video and film experimental projects of CineGuardSystem in Poland, South Africa, the Philippines and Latin America.

● 1997 65438+ 10, the U.S. company TI began to manufacture the prototype of DLP (using the DMD digital micromirror chip dedicated by TI company). In May of that year, it introduced a DMD chip with the resolution of1280x1024 (DMD1210).

From the end of1997 to1June, 999, digital projectors and transmission methods were constantly maturing, and digital movies finally began to be shown commercially.

●1At the end of 1997, the Cinenet Digital Film Experimental Project of the European Union conducted live experiments on Bach's "OrpheusintheUnderworld" concert from Lyon, France to Paris, France and London, England.

● 1998 10 10. In October, the American low-budget film TheLastBroadcast was transmitted in theaters in five cities in the United States, and it was shown for the first time with a DLP digital film projector made by DPI, an international digital projector company.

●1999 in may, French Cannes international film festival invited MITIC, the technical organization responsible for film technology innovation, to hold a special exhibition of digital films for the first time, and the American feature film "TheLastBroadcast" was shown by a DLP digital projector.

●1June, 999 18, Star Wars I-Phantom Threat (also translated as Star Wars I: Phantom Crisis) directed by the famous director george lucas began a one-month digital screening in six American cinemas, using a projector based on the digital optical processor (DLP) chip technology of TI. This is the first commercial screening of digital movies, marking the first year of the digital history of the world's movies. The release of Star Wars 1 was an unprecedented success, with a global box office of over 400 million dollars.

● From July 1999 to July 165438+ 10, Disney successfully screened the films Mount Tai, Toy Story 2, mission to mars, Dinosaur and Two Hundred Years of Mankind with DLP digital projector.

Touring demonstration

● At the beginning of 2000, American TI company took DLP digital movie projector to France, Britain, Belgium and other countries in Europe to show the movie Toy Story 2; In the following six months, ChristieDigitalSystems, a Canadian Electrohome projector manufacturer, Barco, a Belgian projector manufacturer, and DPI, an international digital projector company acquired by Imax in the United States, were granted the franchise rights to manufacture digital film projectors using DLP chip technology by TI. Projections that can provide commercial services in the market are basically digital projectors using DLP technology of TI company.

● In March 2000, Kodak Company of the United States cooperated with Qualcomm Company to establish a digital film system in its Hollywood Imaging Technology Center. At the same time, Boeing Digital Film Company successfully carried out the application satellite transmission experiment at the annual ShoWest exhibition, and digitally showed the movie SpyKids.

● In June 2000, 20th Century Fox Company cooperated with Cisco Company for the first time, and conducted a digital film screening experiment based on network transmission. The Internet technology based on IP protocol of Cisco Company is used in the experiment. The signal of the animated film "Titan". E from Fox Company is composed of real people and computer-generated images, which are directly transmitted from Fox's Hollywood studio to the computer server of Atlanta's SuperComm exhibition for storage through Qwest's virtual private optical fiber network, and then shown on the spot through DLP digital projector.

● In July 2000, Warner Bros., following the Disney Company, realized the premiere of the movie "Perfect Storm" in the digital cinema in London, England. At the same time, "Jurassic Park III was shown in the digital cinema of Universal Studios California, and THX Digital Service Company compressed and burned the whole movie and multi-channel audio content to 13 DVD-R and downloaded it to the servers of various cinemas".

However, the most successful film was the global digital screening of george lucas's Star Wars series Star Wars Prequel II: Attack of the Clone Wars in May 2002. If we say that in Star Wars I, only a large number of digital stunt techniques are used, then in the filming of prequel trilogy II: Attack of the Clones, "George? Lucas abandoned the traditional film camera for the first time and adopted digital shooting equipment in an all-round way. The whole movie won't have an inch of film, and all the images are recorded and expressed with 0 and 1, making it the first live-action movie without film. This kind of screening method saves the time and expense of "gluing" several times after the digital film is made and then copying it in a large number in the cinema square, thus ensuring the consistent picture quality of the film.