CN101729834A - Liquid crystal television system capable of being used under outdoor environment - Google Patents
Liquid crystal television system capable of being used under outdoor environment Download PDFInfo
- Publication number
- CN101729834A CN101729834A CN200910237728A CN200910237728A CN101729834A CN 101729834 A CN101729834 A CN 101729834A CN 200910237728 A CN200910237728 A CN 200910237728A CN 200910237728 A CN200910237728 A CN 200910237728A CN 101729834 A CN101729834 A CN 101729834A
- Authority
- CN
- China
- Prior art keywords
- brightness
- lcd
- screen body
- liquid crystal
- automatic
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a liquid crystal television system capable of being used under an outdoor environment, belonging to the technical field of radiated televisions and media and comprising a liquid crystal television panel, a liquid crystal television driving plate, an LED backlight system, an automatic brightness regulating system, an automatic temperature control system, an anti-ultraviolet photic film, a sound reinforcement system and a sealing shell, wherein the liquid crystal television driving plate is connected with the automatic brightness regulating system by an RS 232 interface for controlling the brightness of the liquid crystal television; an audio interface on the liquid crystal television driving plate is connected with the sound reinforcement system; the automatic temperature control system is used for transmitting temperature data to the liquid crystal television driving plate for controlling the work of a blower; and the anti-ultraviolet photic film is bonded to high photic glass in the front of the sealing shell and forms a closed temperature preserving space of an ultra bright television together with the sealing shell. The liquid crystal television system is widely applied to places such as walking streets, bus advertising kiosks, leisure squares, street signposts, ships, cars and the like.
Description
Technical field
Present technique belongs to radio and television, media technology field, and a kind of liquid crystal television system that can use under outdoor environment particularly is provided, and is widely used in shopping mall, public transport kiosk, Entertainment Plaza, street signpost, boats and ships, place such as vehicle-mounted.
Background technology
Conventional LCD TV is because back light source brightness is low, working temperature is low, antijamming capability is low, anti-uv-ray is low, structural strength is low and do not have windproof, rainproof design, all be unsuitable for outdoor application, the display screen of life outdoor videos all is a LED display, and the displaying of picture category mainly relies on lamp box to show.The pixel interval of LED is bigger, be difficult to realize in-plant watch and closely clearly literal show, be not suitable for doing undersized display screen outdoor; The amount of being written into of the picture display message of lamp box class is very little, and at most just several pictures are very big for the waste of advertising resource, and market demand has a kind of information amount of being written into big and can clear display image and the display screen of closely watching of literal.
Conventional liquid crystal display screen is used for outdoor needs and solves brightness problem, windproof problem, rainproof problem, heat dissipation problem, low temperature use problem, antiultraviolet problem.Want to see distinct image outdoor, the mean flow rate of LCD TV must reach 1500cd/m
2More than, and the screen body of liquid crystal display screen must be done windproof, rainproof treatment.The high brightness of screen body causes the rapid increase of backlight caloric value, and the temperature at outdoor noon in summer also may be that the ambient temperature of shielding body reaches more than 40 ℃, heat dissipation environment is extremely abominable, and the heat radiation of screen body also must have the cooling system of special high coefficient of heat transfer could guarantee that LCD TV normally uses.Outdoor LCD TV is when using winter, also can face the low temperature problem, the serviceability temperature normal temperature type working temperature of LCD TV design is 0～60 ℃, the wide temperature range type working temperature is-20～70 ℃, super wide temperature range type working temperature is-30～80 ℃, and use response speed of liquid crystal also can prolong at low temperatures, especially at the northern area of China, nighttime temperature when winter is the coldest even be lower than-40 ℃, exceeded the temperature range that LCD TV is used, need carry out special design to LCD TV and could satisfy outdoor instructions for use under ultralow temperature.Illumination under the outdoor daylight can reach cd/m up to ten thousand
2, and the brightness at night even can hang down 0.1cd/m
2There is huge illumination gap, single high brightness is set not only can causes huge power consumption, but under low-light (level), watch super bright LCD TV also to have dazzling sensation, so the LCD TV of outdoor unattended duty also needs to be provided with automatic brightness adjusting device.
Summary of the invention
The object of the present invention is to provide a kind of liquid crystal television system that can use under outdoor environment, increased the brightness in LCD TV backlight source, the brightness of LCD TV is reached can be at the 1500cd/m of outdoor clear demonstration
2Increase the structural strength of LCD TV, and automatic brightness adjusting device, heat up start-up system and automatic heat radiation system automatically in the structure of LCD TV, have been increased, screen body integral body has rainproof, windproof design, increased the glass that high-transmittance posts the antiultraviolet film in the front of liquid crystal panel.
The present invention includes LCD TV panel, LCD TV drive plate, LED-backlit system, brightness automatic adjustment system, auto temperature controlled system, antiultraviolet light transmission film, sound reinforcement system, seal casinghousing, as shown in Figure 1.The LCD TV drive plate connects the brightness of brightness automatic adjustment system control LCD TV by the RS232 interface, audio interface on the LCD TV drive plate connects sound reinforcement system, auto temperature controlled system is passed to the LCD TV drive plate with temperature data, the work of control blower fan, the antiultraviolet light transmission film is affixed on the high transparent glass of seal casinghousing front, forms the airtight keeping warmth space of super bright TV with seal casinghousing.
The ambient brightness value that the brightness automatic adjustment system is measured according to illuminance transducer, brightness is adjusted to the screen body automatically, makes the brightness of screen body adjust variation voluntarily according to outdoor illumination.
The brightness automatic adjustment system is made up of illuminance transducer, screen body brightness automatic adjustment system, according to the ambient brightness value of being measured by illuminance transducer, offers screen body brightness automatic adjustment system, and brightness is adjusted to the screen body automatically.Its basic principle is: by the data based program command of brightness point by point duty ratio by the gated sweep plate, the LED-backlit module is carried out the stage adjustment of brightness, variation with the brightness that conforms, avoid because of bright excessively cause watch dazzling and power wastage, watching of avoiding causing because of brightness is low excessively is unclear.This gated sweep plate can be realized the articulating control to the polylith lamp plate, realizes the brightness uniformity digitlization adjustment and the brightness program control of whole screen, as illustrates shown in Figure 2.Automatically adjust shielding body brightness continually according to the outdoor illumination of sensor senses for avoiding shielding body brightness meeting, influence is watched.The brightness adjustment of screen body is set to interim adjustment, and promptly in certain outdoor illumination range, the screen body of LCD TV adopts same brightness, according to the variation of outdoor illumination several brightness sections is set.When outdoor illumination greater than 1500lx/m
2The time, high-high brightness 2200cd/m is adjusted in the brightness of screen body automatically
2More than; When outdoor illumination at 1000～1500lx/m
2The time, brightness 1600cd/m is adjusted in the brightness of screen body
2When outdoor illumination at 500～1000lx/m
2The time, the brightness of screen body is adjusted to the brightness of screen body and is set to 1100cd/m
2When outdoor illumination at 100～500lx/m
2The time, 600cd/m is adjusted in the brightness of screen body
2When outdoor illumination is lower than 100lx/m
2The time, 100cd/m is adjusted in the brightness of screen body
2Below.
The antiultraviolet light transmission film is affixed on the high transparent glass of seal casinghousing front, as shown in Figure 4, forms the confined space of super bright TV with seal casinghousing.
Auto temperature controlled system is made up of temperature sensor, automatic control circuit system, automatic electromagnetic iron system, blower fan, air channel, radiator backlight and standby air-conditioning, as shown in Figure 3.Temperature sensor is passed to the automatic control circuit system with ambient temperature data, produces control level according to temperature information and offers automatic electromagnetic iron system, the work of control blower fan and the unlatching in air channel.When outdoor temperature is lower than 0 ℃, the opening sequence of LCD TV is to open the LED-backlit system earlier, and the heat that utilizes the LED-backlit system to produce is realized the heating to the screen body, and this moment, seal casinghousing was the space of a sealing, air outlet and air inlet all seal, as shown in Figure 5.When the temperature in the seal casinghousing space rose to more than 0 ℃, LCD TV panel and signal source were opened; When the temperature in the seal cavity rose to more than 40 ℃, air outlet and air inlet on the housing were opened automatically, realized seal casinghousing and extraneous heat loss through convection.Air outlet is positioned at the top of seal casinghousing, and for guaranteeing rainproof requirement, cover plate is arranged at the top of air outlet, and as shown in Figure 6, for preventing entering of dust, air inlet is provided with the dust cover of cleaning easy to assemble, as shown in Figure 7.Radiator backlight adopts and arranges perpendicular to picture, be provided with the fin equal length of radiator backlight in the bottom or be slightly larger than the finedraw Parallel airflow of the band forced air supply of fin, concavo-convex bottom vertical at fin is blown in making progress, have in the extractor fan of bottom shape symmetry at the top of radiator backlight, as shown in Figure 8, form the ventilation heat abstractor of superbright LCD TV.In extreme cold and extremely overheated area, under overheated or cold excessively situation, when relying on LED-backlit internal system heat within ten minutes, can't be heated on 0 ℃, or when extremely the heat loss through convection of overheated dependence blower fan can't drop to the screen body temperature degree of LCD TV in 50 ℃, automatically open the air-conditioning decorum, and close ventilating opening up and down, rely on air-conditioning to adjust the interior temperature constant temperature of housing about 25 ℃.
Sound reinforcement system adopts the automatic tuning system of voice, according to the automatic volume of adjusting megaphone of the size of environmental noise, guarantees that personnel can catch the sound of play content within 15 meters.
Description of drawings
Fig. 1 is the system configuration principle schematic.
Fig. 2 is brightness automatic adjustment system figure.
Fig. 3 is auto temperature controlled system figure.
Fig. 4 is for LCD TV panel and housing and post the high transparent glass connection layout of ultraviolet film.Wherein, seal casinghousing 1, the high saturating glass 2 of ultraviolet film, liquid crystal panel 3, light guide plate 4, backlight 5, radiator 6.
Fig. 5 is the inlet and outlet design drawing of closing.Wherein, the air inlet 8 of the air outlet 7 of sealing, sealing.
The inlet and outlet design drawing of Fig. 6 for opening.Wherein, the air outlet 9 of unlatching, the air inlet of opening 10, last dust cover 11.
Fig. 7 is an air inlet dust cover design drawing.Wherein, the air inlet dust cover 12 of dismantled and assembled cleaning.
Fig. 8 is fin and air channel design drawing.Wherein, radiator 6, air exhauster 13, hair-dryer 14.
Embodiment
Fig. 1～8 are embodied as a kind of embodiment of the present invention.
The present invention includes LCD TV panel, LCD TV drive plate, LED-backlit system, brightness automatic adjustment system, auto temperature controlled system, antiultraviolet light transmission film, sound reinforcement system, seal casinghousing.As shown in Figure 1.The LCD TV drive plate connects the brightness of brightness automatic adjustment system control LCD TV by the RS232 interface, audio interface on the LCD TV drive plate connects sound reinforcement system, auto temperature controlled system is passed to the LCD TV drive plate with temperature data, the work of control blower fan, antiultraviolet light transmission film is affixed on the high transparent glass of seal casinghousing front, form the airtight keeping warmth space of super bright TV with seal casinghousing.
The brightness automatic adjustment system: according to the ambient brightness value of being measured by illuminance transducer, offer screen body brightness automatic adjustment system, brightness is adjusted to the screen body automatically.Its basic principle is: by the data based program command of brightness point by point duty ratio by the gated sweep plate, the LED-backlit module is carried out the stage adjustment of brightness, variation with the brightness that conforms, avoid because of bright excessively cause watch dazzling and power wastage, watching of avoiding causing because of brightness is low excessively is unclear.This gated sweep plate can be realized the articulating control to the polylith lamp plate, realizes the brightness uniformity digitlization adjustment and the brightness program control of whole screen, and its schematic diagram as shown in Figure 2.Automatically adjust shielding body brightness continually according to the outdoor illumination of sensor senses for avoiding shielding body brightness meeting, influence is watched.The brightness adjustment of screen body is set to interim adjustment, and promptly in certain outdoor illumination range, the screen body of LCD TV adopts same brightness, according to the variation of outdoor illumination several brightness sections is set.When outdoor illumination greater than 1500lx/m
2The time, high-high brightness 2200cd/m is adjusted in the brightness of screen body automatically
2More than; When outdoor illumination at 1000～1500lx/m
2The time, brightness 1600cd/m is adjusted in the brightness of screen body
2When outdoor illumination at 500～1000lx/m
2The time, the brightness of screen body is adjusted to the brightness of screen body and is set to 1100cd/m
2When outdoor illumination at 100～500lx/m
2The time, 600cd/m is adjusted in the brightness of screen body
2When outdoor illumination is lower than 100lx/m
2The time, 100cd/m is adjusted in the brightness of screen body
2Below.
Automatic temperature-controlled Adjustment System
The antiultraviolet light transmission film is affixed on the high transparent glass of seal casinghousing front, as shown in Figure 4, forms the confined space of super bright TV with seal casinghousing.
Auto temperature controlled system is made up of temperature sensor, automatic control circuit system, automatic electromagnetic iron system, blower fan, air channel, radiator backlight and standby air-conditioning, as shown in Figure 3.Temperature sensor is passed to the automatic control circuit system with ambient temperature data, produces control level according to temperature information and offers automatic electromagnetic iron system, the work of control blower fan and the unlatching in air channel.When outdoor temperature is lower than 0 ℃, the opening sequence of LCD TV is to open the LED-backlit system earlier, and the heat that utilizes the LED-backlit system to produce is realized the heating to the screen body, and this moment, seal casinghousing was the space of a sealing, air outlet and air inlet all seal, as shown in Figure 5.When the temperature in the seal casinghousing space rose to more than 0 ℃, LCD TV panel and signal source were opened; When the temperature in the seal cavity rose to more than 40 ℃, air outlet and air inlet on the housing were opened automatically, realized seal casinghousing and extraneous heat loss through convection.Air outlet is positioned at the top of seal casinghousing, and for guaranteeing rainproof requirement, cover plate is arranged at the top of air outlet, and as shown in Figure 6, for preventing entering of dust, air inlet is provided with the dust cover of cleaning easy to assemble, as shown in Figure 7.Radiator backlight adopts and arranges perpendicular to picture, be provided with the fin equal length of radiator backlight in the bottom or be slightly larger than the finedraw Parallel airflow of the band forced air supply of fin, concavo-convex bottom vertical at fin is blown in making progress, have in the extractor fan of bottom shape symmetry at the top of radiator backlight, as shown in Figure 8, form the ventilation heat abstractor of superbright LCD TV.In extreme cold and extremely overheated area, under overheated or cold excessively situation, when relying on LED-backlit internal system heat within ten minutes, can't be heated on 0 ℃, or when extremely the heat loss through convection of overheated dependence blower fan can't drop to the screen body temperature degree of LCD TV in 50 ℃, automatically open the air-conditioning decorum, and close ventilating opening up and down, rely on air-conditioning to adjust the interior temperature constant temperature of housing about 25 ℃.
Sound reinforcement system: adopt the automatic tuning system of voice,, guarantee that personnel can catch the sound of play content within 15 meters according to the automatic volume of adjusting megaphone of the size of environmental noise.
Claims (4)
1. the liquid crystal television system that can use under outdoor environment is characterized in that: comprise LCD TV panel, LCD TV drive plate, LED-backlit system, brightness automatic adjustment system, auto temperature controlled system, antiultraviolet light transmission film, sound reinforcement system, seal casinghousing; The LCD TV drive plate connects the brightness of brightness automatic adjustment system control LCD TV by the RS232 interface, audio interface on the LCD TV drive plate connects sound reinforcement system, auto temperature controlled system is passed to the LCD TV drive plate with temperature data, the work of control blower fan, antiultraviolet light transmission film is affixed on the high transparent glass of seal casinghousing front, form the airtight keeping warmth space of super bright TV with seal casinghousing;
The ambient brightness value that the brightness automatic adjustment system is measured according to illuminance transducer, brightness is adjusted to the screen body automatically, makes the brightness of screen body adjust variation voluntarily according to outdoor illumination.
2. system according to claim 1, it is characterized in that: the brightness automatic adjustment system is made up of illuminance transducer, screen body brightness automatic adjustment system, the brightness adjustment of screen body is set to interim adjustment, in certain outdoor illumination range, the screen body of LCD TV adopts same brightness, according to the variation of outdoor illumination several brightness sections is set; When outdoor illumination greater than 1500lx/m
2The time, high-high brightness 2200cd/m is adjusted in the brightness of screen body automatically
2More than; When outdoor illumination at 1000～1500lx/m
2The time, brightness 1600cd/m is adjusted in the brightness of screen body
2When outdoor illumination at 500～1000lx/m
2The time, the brightness of screen body is adjusted to the brightness of screen body and is set to 1100cd/m
2When outdoor illumination at 100～500lx/m
2The time, 600cd/m is adjusted in the brightness of screen body
2When outdoor illumination is lower than 100lx/m
2The time, 100cd/m is adjusted in the brightness of screen body
2Below.
3. system according to claim 1 is characterized in that: auto temperature controlled system is made up of temperature sensor, automatic control circuit system, automatic electromagnetic iron system, blower fan, air channel, radiator backlight and standby air-conditioning; Temperature sensor is passed to the automatic control circuit system with ambient temperature data, produces control level according to temperature information and offers automatic electromagnetic iron system, the work of control blower fan and the unlatching in air channel; When outdoor temperature was lower than 0 ℃, the opening sequence of LCD TV was to open the LED-backlit system earlier, and the heat that utilizes the LED-backlit system to produce is realized the heating to the screen body, and this moment, seal casinghousing was the space of a sealing, and air outlet and air inlet all seal; When the temperature in the seal casinghousing space rose to more than 0 ℃, LCD TV panel and signal source were opened; When the temperature in the seal cavity rose to more than 40 ℃, air outlet and air inlet on the housing were opened automatically, realized seal casinghousing and extraneous heat loss through convection; Air outlet is positioned at the top of seal casinghousing, and for guaranteeing rainproof requirement, cover plate is arranged at the top of air outlet, and for preventing entering of dust, air inlet is provided with the dust cover of cleaning easy to assemble; Radiator backlight adopts and arranges perpendicular to picture, be provided with the fin equal length of radiator backlight in the bottom or be slightly larger than the finedraw Parallel airflow of the band forced air supply of fin, concavo-convex bottom vertical at fin is blown in making progress, have in the extractor fan of bottom shape symmetry at the top of radiator backlight, form the ventilation heat abstractor of superbright LCD TV.
4. system according to claim 1 is characterized in that: sound reinforcement system adopts the automatic tuning system of voice, according to the automatic volume of adjusting megaphone of the size of environmental noise, guarantees that personnel can catch the sound of play content within 15 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102377285A CN101729834B (en) | 2009-11-18 | 2009-11-18 | Liquid crystal television system capable of being used under outdoor environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102377285A CN101729834B (en) | 2009-11-18 | 2009-11-18 | Liquid crystal television system capable of being used under outdoor environment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101729834A true CN101729834A (en) | 2010-06-09 |
| CN101729834B CN101729834B (en) | 2012-06-13 |
Family
ID=42449920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102377285A Expired - Fee Related CN101729834B (en) | 2009-11-18 | 2009-11-18 | Liquid crystal television system capable of being used under outdoor environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101729834B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129778A (en) * | 2010-12-20 | 2011-07-20 | 北京同方瑞博数字技术有限公司 | Multimedia traffic light |
| CN108170180A (en) * | 2017-12-13 | 2018-06-15 | 深圳市飓风智云科技有限公司 | The real-time dynamic cooling system of display device intelligence and method |
| CN112181017A (en) * | 2020-09-17 | 2021-01-05 | 武汉海微科技有限公司 | Temperature protection algorithm based on vehicle-mounted display screen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812195Y (en) * | 2005-07-14 | 2006-08-30 | 深圳市奥拓电子有限公司 | Outdoor panel display |
| CN100578602C (en) * | 2007-08-27 | 2010-01-06 | 重庆大学 | Automatic brightness control device of outdoor full color LED big screen display screen and method thereof |
| CN100555406C (en) * | 2007-11-09 | 2009-10-28 | 汇众联合传媒科技有限公司 | To method for regulating outdoor display screen brightness |
| CN201171223Y (en) * | 2008-02-22 | 2008-12-24 | 四川长虹电器股份有限公司 | Outdoor liquid crystal flat-plate television |
| CN201185540Y (en) * | 2008-02-22 | 2009-01-21 | 四川长虹电器股份有限公司 | Outdoor display apparatus |
-
2009
- 2009-11-18 CN CN2009102377285A patent/CN101729834B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129778A (en) * | 2010-12-20 | 2011-07-20 | 北京同方瑞博数字技术有限公司 | Multimedia traffic light |
| CN108170180A (en) * | 2017-12-13 | 2018-06-15 | 深圳市飓风智云科技有限公司 | The real-time dynamic cooling system of display device intelligence and method |
| CN112181017A (en) * | 2020-09-17 | 2021-01-05 | 武汉海微科技有限公司 | Temperature protection algorithm based on vehicle-mounted display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101729834B (en) | 2012-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101968601A (en) | Image display apparatus | |
| US9443477B2 (en) | Liquid crystal display (LCD) system and method | |
| CN102112906B (en) | LCD apparatus with heat dissipation arrangements | |
| CN206801372U (en) | A kind of transparent multimedia windowpane | |
| WO2013182733A1 (en) | Information display and a method for cooling an information display | |
| CN102982745B (en) | Outdoor liquid crystal display equipment with semiconductor automatic temperature control system device | |
| CN203340448U (en) | Integrated communication cabinet system | |
| US11293908B2 (en) | System and method for detecting gas recirculation or airway occlusion | |
| CN102907088A (en) | Display enclosure | |
| CN101729834B (en) | Liquid crystal television system capable of being used under outdoor environment | |
| CN101510019A (en) | Liquid crystal apparatus, projection apparatus and electronic equipment | |
| CN201550216U (en) | Windproof and rainproof liquid crystal display television | |
| CN101710475B (en) | Multifunctional display system for pedestrian street | |
| CN205422320U (en) | Intelligent window | |
| CN101707035B (en) | Multifunctional road inquiring and displaying system of bus stop | |
| CN101719343B (en) | Movable display system positioned on the car roof of taxi | |
| CN209311835U (en) | LCD display | |
| CN104299482B (en) | A kind of two-way variable semiconductor temperature control teaching experiment system | |
| CN107100504A (en) | A kind of transparent multimedia windowpane | |
| CN102768427A (en) | Outdoor LCD (Liquid Crystal Display) device and temperature adjustment system thereof | |
| CN202025163U (en) | Liquid crystal display device | |
| CN201541314U (en) | Liquid crystal display television capable of displaying on double surfaces | |
| CN102129778A (en) | Multimedia traffic light | |
| Joshi et al. | Thermal Management of Outdoor Digital Displays-A Review | |
| CN102135677B (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |