CN101815189A - Large-screen television with high brightness - Google Patents
Large-screen television with high brightness Download PDFInfo
- Publication number
- CN101815189A CN101815189A CN201010127424A CN201010127424A CN101815189A CN 101815189 A CN101815189 A CN 101815189A CN 201010127424 A CN201010127424 A CN 201010127424A CN 201010127424 A CN201010127424 A CN 201010127424A CN 101815189 A CN101815189 A CN 101815189A
- Authority
- CN
- China
- Prior art keywords
- air
- air outlet
- optical
- light
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2073—Polarisers in the lamp house
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
- G03B33/10—Simultaneous recording or projection
- G03B33/12—Simultaneous recording or projection using beam-splitting or beam-combining systems, e.g. dichroic mirrors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
Abstract
The invention discloses a large-screen television with the high brightness, consisting of a casing, a system circuit board, an optical projection system, a radiating structure and a display screen. The optical projection system comprises an optical engine and a reflecting mirror, wherein the optical engine is arranged on a lower hollow cavity of the casing, and provided with a light source, a filtering mirror, an optical system assembly and a protection lens; and the reflecting mirror is arranged on an upper hollow cavity, and a separator is arranged between the upper hollow cavity and the lower hollow cavity. The optical system assembly is sequentially provided with a first compound eye, an optical filter, a second compound eye, a polarizing sheet, a diachronic mirror, a prism and a micro-display chip according to the trend of optical paths; and the radiating structure consists of a radiating fan and an air flue, the air flue has two air inlet flues and four air outlets, and the four air outlets comprise a red-light air outlet, a blue-light air outlet, a green-light air outlet and a polarizing sheet air outlet. The brightness before the screen is well improved, and the uniformity problem of a picture can be solved with no obvious dark areas, and the whole machine power is low.
Description
Technical field
The invention belongs to a kind of television set, be specifically related to a kind of large-screen television with high brightness.
Background technology
At present, traditional television set mainly contains plasma, liquid crystal, CRT picture tube TV (flat-screen CRT, super flat CRT, ultra-thin CRT etc.), rear-projection TV (CRT rear-projection, DLP rear-projection, LCOS rear-projection, liquid crystal rear-projection), and their brightness is all about 200-550cd/m2.Plasma can reach more than 60 inches in the market, and liquid crystal also can reach more than 47 inches, but its shortcoming is exactly visible angle, reaction speed, particularly uses after a period of time, and brightness is low before the screen; CRT picture tube TV major advantage is exactly that visible angle is big, reaction speed is fast, and color rendition is fine, but its screen maximum just about 34 inches, and very thick very heavy, also take.Problems such as rear-projection in the market (CRT rear-projection, DLP rear-projection, LCOS rear-projection, liquid crystal rear-projection) is owing to the caloric value height, and brightness is usual, and bulb life is short show inferior slightly.Traditional large-screen receiver, bulb power is big, and the light utilization ratio is low, and bulb life is short, and bulb damages easily, and brightness is not high.The method that improves brightness at present has two kinds: the one, and the light percent of pass of raising LCD panel; Another kind is exactly the brightness that increases back of the body lamp source.Yet only improve the brightness in back of the body lamp source, the brightness that improves is limited, generally can reach about 500cd/m2, the light percent of pass that improves liquid crystal panel is also referred to as " polishing technology ", display screen surface cans be compared to has adorned one deck glass, strengthen the reflection of light, but also improved the color contrast and the saturation of screen.And the use of " polishing technology " also is easy to allow eyes " be stabbed " by light, also causes eye fatigue easily, even causes health problems such as eyesight decline and headache.And it should be noted that: bright in the extreme as LCD at the middle body of screen, and reducing nearly 25% near marginal portion brightness meeting.
Summary of the invention
Improve visual fatigue and the not high deficiency of bringing of brightness in order to overcome existing TV brightness, the object of the present invention is to provide a kind of large-screen television with high brightness, can not only well improve the preceding brightness of screen, and can solve the picture homogeneity question, there is not tangible dark space, and complete machine power is little, the cost performance height.
For achieving the above object, the technical solution used in the present invention is: this large-screen television with high brightness, by casing, system circuit board, optical projection system, radiator structure and display screen are formed, described optical projection system comprises the light engine that is installed on the casing lower cavity, be installed in the speculum of upper cavity, one dividing plate is arranged between upper cavity and lower cavity, it is characterized in that: described light engine is provided with light source, filter, module of optical system and projection lens, described module of optical system are pressed the trend of light path successively by first compound eye, filter, second compound eye, polarizer, dichronic mirror, prism, micro display chip constitutes; Described radiator structure is made of radiator fan and air channel, and described air channel has two air intake vent air channels and four air outlets, and four air outlets are respectively ruddiness air outlet, blue light air outlet, green glow air outlet, polarizer air outlet.
The light source of described light engine adopts high-power bulb.
Adopt the beneficial effect of technique scheme to be: this large-screen television with high brightness employing light engine is implemented in the projection on the tv display screen, adopted full HD digital television chip, can make the large-screen HDTV (High-Definition Television), large-screen television with high brightness is mainly realized high brightness by light engine and radiator structure.By optimizing light path design, light engine is provided with light source, filter, module of optical system and projection lens, described module of optical system is made of first compound eye, filter, second compound eye, polarizer, dichronic mirror, prism, micro display chip successively by the trend of light path, improve the utilance of optical system, improve brightness light.Improve radiator structure, its radiator structure is made of radiator fan and air channel, the air channel has two air intake vent air channels and four air outlets, four air outlets are respectively ruddiness air outlet, blue light air outlet, green glow air outlet, polarizer air outlet, after heat dissipation wind channel improves, can increase the air exhaust air rate, light source bulb wick and some lamp ballast are cooled off and improve the complete machine internal temperature, and increasing bulb power, improved the brightness value of large screen television greatly, effectively dispel the heat, prolonged the useful life of lamp.
The data that the large-screen high brightness tv product that adopts above-mentioned technology manufacturing is tested on full white luminance signal (70 inches are example):
| Test result | Test result | ||
| Coordinate points | ??LV?cd/m 2 | Coordinate points | ??LV?cd/m 2 |
| ??P1 | ??929.9 | ??P6 | ??964.1 |
| ??P2 | ??953.2 | ??P7 | ??855 |
| ??P3 | ??932.8 | ??P8 | ??921.6 |
| ??P4 | ??928.4 | ??P9 | ??939.7 |
| ??P5 | ??996.1 | ||
| Average brightness value | ??935.6 |
The brightness of this large-screen television with high brightness product, size, the contrast of power consumption and existing TV
| The PDP TV | The LCD TV | Large-screen television with high brightness | |
| Display size (inch) | ??63 | ??65 | ??71 |
| Power consumption (watt) | ??800 | ??600 | ??240 |
| Brightness (cd/m 2) | ??400 | ??350 | ??900 |
From as can be seen last, the product by above-mentioned technology is made has solved the low shortcoming of the little brightness of traditional tv size, and the picture good uniformity does not have tangible dark space, and complete machine power is little.And adopted full HD digital television chip, and can become full HD high brightness TV, can be applied to the office field widely, video conference, school's multimedia, home theater, indoor and outdoor interdynamic video electronic system makes the user remove to realize bigger display size with lower cost.
Description of drawings
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of large-screen television with high brightness.
Fig. 2 is a light engine light path system schematic diagram.
Fig. 3 is a light engine air channel structure schematic diagram.
Embodiment
Large-screen television with high brightness as shown in Figure 1, by casing 1, system circuit board 8, optical projection system, radiator structure and display screen 2 are formed, casing 1 has upper cavity 3 and lower cavity 4, be provided with a dividing plate 5 between the cavity of top and the bottom, described optical projection system comprises the light engine 6 that is installed on the casing lower cavity, be installed in the speculum of upper cavity, one dividing plate is arranged between upper cavity and lower cavity, speculum 7 is mounted on the upper cavity, system circuit board 8 be located at base plate 9 on, light engine 6, the system circuit board 8 common video display systems of forming, reflex on the display screen 2 by the speculum 7 that is fixed on upper cavity, enough become complete large-screen television with high brightness.The light path system of light engine as shown in Figure 2, have light source, filter, module of optical system and projection lens, the light source of described light engine adopts high-power bulb, and described module of optical system is made of the first compound eye a, filter b, the second compound eye c, polarizer e, dichronic mirror f, prism g, micro display chip successively by the trend of light path.Radiator structure as shown in Figure 3, constitute by radiator fan 10,11 and air channel, described air channel has 12,13 and four air outlets of two air intake vents, and four air outlets are respectively ruddiness air outlet 14, blue light air outlet 15, green glow air outlet 16, polarizer air outlet 17.The size of air outlet air quantity as required, the size of appropriate design air outlet and position.Radiator fan adds components and parts exhaust air rate in the big machine, and better heat radiating effect can increase bulb power, improves the brightness value of large-screen receiver, makes display effect more outstanding, and the scope of application is broader, uses for more user.
Claims (2)
1. large-screen television with high brightness, form by casing, system circuit board, optical projection system, radiator structure and display screen, described optical projection system comprises the light engine that is installed on the casing lower cavity, the speculum that is installed in upper cavity, one dividing plate is arranged between upper cavity and lower cavity, it is characterized in that: described light engine is provided with light source, filter, module of optical system and projection lens, and described module of optical system is made of first compound eye, filter, second compound eye, polarizer, dichronic mirror, prism, micro display chip successively by the trend of light path; Described radiator structure is made of radiator fan and air channel, and described air channel has two air intake vent air channels and four air outlets, and four air outlets are respectively ruddiness air outlet, blue light air outlet, green glow air outlet, polarizer air outlet.
2. large-screen television with high brightness according to claim 1 is characterized in that: the light source of described light engine adopts high-power bulb.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127424A CN101815189A (en) | 2010-03-19 | 2010-03-19 | Large-screen television with high brightness |
| PCT/CN2010/001490 WO2011113186A1 (en) | 2010-03-19 | 2010-09-26 | High-brightness and large-sized screen tv |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010127424A CN101815189A (en) | 2010-03-19 | 2010-03-19 | Large-screen television with high brightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101815189A true CN101815189A (en) | 2010-08-25 |
Family
ID=42622295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010127424A Pending CN101815189A (en) | 2010-03-19 | 2010-03-19 | Large-screen television with high brightness |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101815189A (en) |
| WO (1) | WO2011113186A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113186A1 (en) * | 2010-03-19 | 2011-09-22 | 南阳首控光电有限公司 | High-brightness and large-sized screen tv |
| CN104777705A (en) * | 2014-01-10 | 2015-07-15 | 三菱电机株式会社 | Projection image display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383034A (en) * | 2002-05-24 | 2002-12-04 | 杭州浙大科特光电科技有限公司 | Optical engine of back-projecting liquid crystal TV set |
| CN1461973A (en) * | 2002-05-27 | 2003-12-17 | 尼康株式会社 | Lighting optical device, exposure device and exposure method |
| CN101114112A (en) * | 2006-07-27 | 2008-01-30 | 上海信诚至典网络技术有限公司 | Projecting camera LCD cooling down mechanism |
| CN201039359Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100434170B1 (en) * | 2001-05-15 | 2004-06-04 | 엘지전자 주식회사 | Cooling structure for projection television |
| CN100373937C (en) * | 2005-12-29 | 2008-03-05 | 海信集团有限公司 | High-definition optical display TV light engine lamp box air channel |
| CN101634754A (en) * | 2008-07-25 | 2010-01-27 | 成都欧恒光电科技有限公司 | LCD projection optical engine adopting LED light source and projection device thereof |
| CN201290150Y (en) * | 2008-09-17 | 2009-08-12 | 南阳金光数字显示有限公司 | Sealing device for split type casing of MD display terminal |
| CN101815189A (en) * | 2010-03-19 | 2010-08-25 | 南阳首控光电有限公司 | Large-screen television with high brightness |
-
2010
- 2010-03-19 CN CN201010127424A patent/CN101815189A/en active Pending
- 2010-09-26 WO PCT/CN2010/001490 patent/WO2011113186A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383034A (en) * | 2002-05-24 | 2002-12-04 | 杭州浙大科特光电科技有限公司 | Optical engine of back-projecting liquid crystal TV set |
| CN1461973A (en) * | 2002-05-27 | 2003-12-17 | 尼康株式会社 | Lighting optical device, exposure device and exposure method |
| CN101114112A (en) * | 2006-07-27 | 2008-01-30 | 上海信诚至典网络技术有限公司 | Projecting camera LCD cooling down mechanism |
| CN201039359Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011113186A1 (en) * | 2010-03-19 | 2011-09-22 | 南阳首控光电有限公司 | High-brightness and large-sized screen tv |
| CN104777705A (en) * | 2014-01-10 | 2015-07-15 | 三菱电机株式会社 | Projection image display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011113186A1 (en) | 2011-09-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100825 |