On January 6, 2015, the "2014 China Film Market Impact Research Report" showed that Chinese films have been increasing their contribution to the national economy and have become the main engine of global box office growth. In 2014, the overall scale of the industry driven by movies exceeded 68.7 billion yuan, indirectly providing no less than 500,000 jobs. With the rapid development of the movie market today, large LED screens are rarely seen in theaters of various lines that are popular with urbanites. In the face of the relative blankness of the movie market, can the LED display, which integrates many broadcasting advantages, get a share of the huge movie market?
Il-vantaġġi ta 'skrins LED fit-teatri huma ovvji
In the face of the relative blankness of the movie market, does the large LED screen have enough advantages to compete with traditional theater playback equipment and enter the movie playback market?
Bħala wirja ta 'dot matrix grafika dinamika elettronika ġdida, skrin kbir LED huwa tip ta' midja ta 'rilaxx ta' informazzjoni li tista 'taħdem awtomatikament u kontinwament fil-mases. Huwa tisbiħ mill-isbaħ li jista 'jtejjeb l-atmosfera u jżejjen l-ambjent. Dan huwa aktar realistiku Il-mod ta 'espressjoni se jipprovdi lill-udjenza b'mod ta' parteċipazzjoni aktar interattiv, aktar ħaj u interessanti, u jissodisfa l-ħtiġijiet suġġettivi tal-udjenza.
Meta mqabbel ma 'sistemi tradizzjonali ta' daqq ta 'films, it-teatri tal-films tradizzjonali jużaw sistemi ta' projezzjoni, għalhekk se jkun hemm ċertu grad ta 'problemi ta' defocusing. Normalment, anki jekk ikun aġġustat tajjeb, l-ammont ta 'defocusing ta' 1-2 pixels huwa komuni ħafna. Dan għaliex fundamentalment, id-distanza proġettata mill-proġettazzjoni għaċ-ċentru tal-iskrin hija differenti mid-distanza proġettata għall-erba 'kantunieri. Il-prinċipju tal-projezzjoni jiddetermina wkoll li hemm tliet kuluri primarji fit-tubu tal-projezzjoni, u l-arranġament tagħhom huwa differenti fil-pożizzjoni. Per eżempju, meta rranġati orizzontalment, il-forma ġeometrika naturali proġettata fuq skrin ċatt, anke jekk jintużaw diversi tekniki biex jikkoreġu u jikkoreġu Huwa komuni ħafna li r-riżultat ikollu 2-3 pixels ta 'distorsjoni residwa. L-effett dirett ta 'din il-konverġenza ħażina huwa l-flanging tal-kulur. Meta tipproġetta films, il-frekwenza ta 'aġġornament tal-proġekter hija ġeneralment ta' 48 Hz, li tista 'wkoll tipproduċi ftit teptip. Fl-istess ħin, l-iskrin huwa dawl rifless, għalhekk għandu jintuża sfond abjad, li jirriżulta f'kuntrast baxx u kuntrast baxx.
U l-qari tal-films fuq l-iskrin LED kbir huwa diġitali għal diġitali, kollox huwa proċess elettroniku, il-kulur tad-dawl LED huwa kostanti għal żmien twil, flimkien ma 'l-iskrin LED huwa awto-luminuż, m'hemm l-ebda skrin , l-ebda lenti, l-ebda riflessjoni, l-ebda dija, u Huwa sfond iswed, għalhekk il-kuntrast huwa ħafna akbar, u l-kuntrast tal-immaġni huwa wkoll ħafna akbar. Skont ir-riżultati attwali tal-kejl, il-kuntrast tal-iskrin tal-wiri LED se jkun diversi drabi dak tal-iskrin anki jekk ikun tip ta 'ġewwa, għalhekk il-kuntrast tal-immaġni se jkun ħafna aħjar. Dan jiddetermina wkoll li l-użu ta 'skrins LED biex tilgħab films mhux se jibqa' jkollu l-problemi komuni ta 'rata ta' aġġornament baxxa, konverġenza ħażina u defocus fid-daqq ta 'films tradizzjonali.
From the perspective of the audience's viewing habits and physiological habits, the actual brightness of the cinema projectors projected on the screen is quite low, and it is often necessary to close all doors and windows and can only be used in a dark environment. Since the projection beam is inherently insufficient in brightness, the viewing conditions are degraded, which mainly affects audiences who are closer to the projector at the back of the movie theater. These audiences will feel a beam of light on their heads and cause discomfort. Without a projection system, There is no so-called "mans". Anyone who has experienced theater knows that when watching a movie in a movie theater, the human eye has to go through the process of "dark adaptation" when entering the theater and the process of "bright adaptation" when leaving the theater. In both cases, there are human eye cone cells. Physiological studies believe that "dark adaptation" is not obvious to the human eye, but it takes a long time; although the time is short, the "bright adaptation" has a strong sense of discomfort to the human eye. The eye is often in a state of alternating between pyramidal cells and cylindrical cells, which can cause obvious fatigue of the eye and even cause other diseases. These two situations do not exist for LED screen movie broadcasting.
Moreover, the current indoor small-pitch LED screen generally solves the problem of multi-signal cut-in and processing in indoor use. It is easy to switch at any time, and there will be no format problems in the projection. Furthermore, in terms of service life and supporting facilities for projection, the longest light source of the traditional projection system is only 20,000 hours. Each projection hall must have an independent projection room, which must occupy a large independent space. Compared with the general life of LED display screens up to 100,000 hours and the need for special projection halls, there is a problem of excessive long-term investment costs.
Avviż fit-teknoloġija tal-iskrin LED L-iskrins LED huma mistennija li jidħlu fis-swali
As a flat panel display, LED display is composed of small LED module panels. Although the price of a single LED lamp bead cannot be taken seriously, when hundreds of thousands of LED lamps are combined together, the cost required is difficult to ignore. Take the small-pitch LED display of P2.5 specification as an example. It has a total of 160,000 lamp beads per square meter; if the spacing is further to the level of 1 mm, there will be 1 million lamp beads per square meter. The large LED screen in the room is calculated as 100 inches, and the cost of the lamp beads will affect the cost of the entire LED screen. Therefore, the primary reason that affects the entry of LED screens into theaters is the excessive investment in the early stage. Secondly, the problems of low brightness and high gray, heat dissipation and seam are also the key factors.
From the development of the LED screen industry in recent years, it can be seen that the competition of conventional LED screens is particularly fierce, and the price war has almost invaded the company's basic profits. Following this, various emerging markets have developed rapidly. Outdoor media, advertising, outdoor surface mounts, special-shaped screens and other markets have performed well. Among them, high-density, small-pitch LED displays have become the hottest products in the industry. In the past few years, most of the indoor LED display screens could only be viewed from a distance, because the distance has not yet reached the technology of close viewing. The spacing of the LED display screen determines the viewing distance and pixels, as long as the dot spacing is small enough, close viewing can be completed. With the continuous progress and renewal of LED technology, the civilian market of LED displays is gradually being valued by many LED companies.
Although the information revealed by various data points to the LED display screen or will replace the traditional movie screen to become a new round of dominance in theaters, Zhao Handing, secretary general of the large-screen projection display equipment branch of the China Electronic Video Industry Association, raised several questions:
1. At present, 3D laser projectors are commonly used in theaters. The movies watched by the audience are softly reflected light. This kind of light is softer and less harmful to the eyes, which can meet the requirements of the audience for watching movies for a long time. However, what the LED display screen emits is self-luminous, and the light has not been effectively moderated, and there are not enough data or experiments to prove whether it can allow people to watch for a long time.
2. Għalkemm bl-avvanz kontinwu tat-teknoloġija LED, l-industrija ġeneralment temmen li l-problema tal-ispiża li kienet l-akbar ostaklu għas-sostituzzjoni ta 'skrins tradizzjonali bi skrins tal-wiri LED kienet mistennija li tiġi solvuta, iżda fil-futur, se l-prestazzjoni tal-ispiża tqabbel mas-sistema ta 'daqq tal-lejżer 3D ġeneralment rikonoxxuta? Il-vantaġġ assolut jeħtieġ li jiġi studjat.
3. Like many new things, whether the emerging LED display screen can be recognized by practitioners in the film industry is also a question to be verified.
4. The problem of large power consumption of LED display screens needs to be solved technically.
Of course, when talking about the entry of LED displays into the malleable space of cinema systems, Zhao Handing also expressed his appreciation for the advantages of LED display screens in simplifying the projection room and adjusting the brightness. Zhao Handing believes: "The idea of replacing traditional screens with LED display screens is very innovative, but more experiments are needed to demonstrate."
Indeed, when LED displays are hesitant to enter the LED screen civilian market, breakthroughs in technology and cost have brought hope for LED screens to enter the market of 68.7 billion yuan in the film industry. It cannot be ignored that the current cost and technological breakthroughs are still insufficient for LED screens to enter the film industry at this stage. However, to borrow a fashionable phrase: dreams are still necessary, what if they are realized?
