1, LG new TV "back to the original"
Today, flat-panel TVs have completely entered the era of intelligence. Almost all new television models will be equipped with smart operating systems and have Internet connectivity. Users can directly connect to the Internet via TV, directly access rich Internet video resources and download rich APP applications. . However, for some elderly users or consumers who only need to watch basic TV functions, the smart operating system and Internet functions are very redundant, and they also increase the purchase cost for these users. In order to meet the needs of this segment of consumers, LG introduced a 49-inch LCD TV, the 49LF5400. In this era of smart gaming, it can be described as “back to basicsâ€. It only has the most basic functions, but it will not do anything in terms of quality. The compromise.
Streamlining the "smart" and focusing on the picture quality For consumers who only need basic functions, smart operating systems, installing APP applications, connecting to the Internet and other features are all burdensome. They will only add extra costs to the TV. These users are relatively more It is hoped that TV makers can focus on improving the industrial design of products, improving quality and image quality, and the LG 49LF5400 is a product built on this concept.
Although the price is close to the people, but the LG 49LF5400 is still equipped with the most advanced graphics processing technology, although not equipped with 4K ultra-high resolution, but in the current 4K film source, the game is still very rare 1080p resolution is more practical, after all, 4K LCD panel costs Relatively higher. In addition, this model is equipped with all of LG's most advanced picture quality technologies, such as the use of IPS hard screen panels, equipped with LG's unique triple XD engine, 24 frames of real theaters, etc., in addition to audio support for the second generation " "Hyun bright vocal" technology for users to create better audio and video effects. First of all, let's go through the following video to get a basic understanding of the LG 49LF5400.
In terms of pricing, LG adopted a relatively novel method this time, which is based on the number of products reserved: The initial price of LG 49LF5400 is 3,499 yuan, but with the increase in the number of bookings, when the number of bookings exceeds 2,000, its sale The price dropped to 3,099 yuan. As of noon yesterday, the number of orders has exceeded 5,000, so the final price of the LG 49LF5400 is 3,099 yuan, which is very tempting for a famous brand of 49-inch televisions.
Let's take a detailed test of this model and see how it performs under the price-friendly conditions.
2, Appearance: white body before the wild environment Many consumers for the "people-friendly" TV's common impression is: cheap, simple features, workmanship and poor performance. However, compared with 49-inch LCD TVs with prices of 3,000 yuan for other brands on the market, the LG 49LF5400 omits intelligent Internet features, so it will not make too many compromises in terms of workmanship and color performance. From the perspective of design and workmanship, it still maintains a good standard.
LG 49LF5400 looks white This LG 49LF5400 body is all white, very suitable for any style of home environment to match, the screen around the border on the use of imitation metal elements, and the narrow border design allows it to see It's lighter. In order to ensure the stability of the fuselage, LG 49LF5400 does not reduce the thickness of the frame to the extreme, but it will not seem burdensome.
LG 49LF5400 LG 49LF5400 fuselage on the back of the fuselage contains "bright spots", from afar it is completely white, and the front echoes, but in fact on both sides of the border and the back above the use of a large number of ancient Chinese copper coins The pattern elements represent auspiciousness and wealth.
Copper coin design on the back of LG 49LF5400
The LG 49LF5400 coin design symbolizes the auspicious LG 49LF5400's coin pattern is relatively small, so it won't disappoint the host, playing embellishment and rendering. However, due to the fact that the back of the TV's body is seldom noticed by users, we feel that it would be better if it were “transferred†to the front.
Remote Control of LG 49LF5400
Because it does not carry any intelligence-related elements, so the LG 49LF5400 uses the most traditional button-type remote control, but also does not have voice and air mouse features, it also put a lot of shortcut keys are placed on the remote control, such as menu settings , screen aspect ratio, program guide, sleep settings, etc., allows users to quickly operate.
3. Materials: not luxurious but solid and reliable In terms of overall materials, although the LG 49LF5400 does not use components such as metal backplanes as high-end models, it is also solid and reliable. , It will not appear severe shaking, the overall market price than the 49-inch LCD TV is more solid, solid.
The border of LG 49LF5400 with the word "2015" is affixed with the words "2015 NEW" on the upper right of the body of LG 49LF5400, indicating that it is the model that LG will push next year. The TV is currently accepting reservations and will be officially released at 10:00 on the morning of December 10.
LG 49LF5400 Brands LOGO
The bottom frame of LG 49LF5400 also uses a metal texture element (the actual material is engineering plastics). Its brand LOGO is located in the center of the bottom frame and is very eye-catching. In addition, its control buttons and switch buttons follow the previous five-position lever. , hidden under the brand LOGO.
Video interface of LG 49LF5400
LG 49LF5400 USB and HDMI Interface In the video interface, LG 49LF5400 is equipped with two HDMI, component, AV, cable and other common interfaces, and is equipped with a USB data interface, allowing users to external U disk and mobile hard disk and other large capacity Storage device, directly read the multimedia file. Although the overall interface is not particularly rich, it is basically enough.
4, menu: simple and quick and easy to use Let's take a look at the menu design part of the LG 49LF5400. Since the functions are relatively basic, this model only provides basic settings and related functions such as automatic shutdown, file management, etc. Even if you do not read the instructions, you can easily use most of the functions for older people. The statement is very convenient.
LG 49LF5400's menu Through the video on the first page, we can see that the LG 49LF5400 operates very smoothly, which has a lot to do with its simple features, and it will not cause software errors or crashes.
Image settings
Advanced Image Settings In the advanced image settings, we can see that the LG 49LF5400 has features such as dynamic contrast, dynamic color, gamma adjustment, noise reduction, and anti-glare effect, which are basically hard to see in the same price model. To that, LG shows its great importance to the display of this TV.
Sound settings
The file management function LG 49LF5400 supports direct playback of most pictures, audio and video files. In the video introduction at the beginning of the article, we can see that the speed of reading pictures is very fast. Even if you open a folder containing multiple files, open And the preview is very fast.
5, color: quality of color is more outstanding Below we take a look at the part of the color expression that we are most concerned about, we through the objective and subjective two major ways to carry out. First of all, in the objective test section, we use the Topcon BM7A luminance colorimeter to complete. Before the test we let the LG 49LF5400 work for one hour and restore it to the factory mode.
Test Instruments: Topcon BM7A Brightness Colorimeter
LG 49LF5400 color test results Through the above picture, we can see that the NTSC color gamut of the LG 49LF5400 is about 76%, which is slightly higher than the current mainstream LCD TVs and LCD monitors, which can mainly perform relatively more vivid red and green, However, it is somewhat lacking in some blue and orange colors, but overall it has achieved satisfactory results.
6, actual combat: the dynamic picture performance is smooth After watching the above objective test results, the next for everyone to show 1080p full HD image content real shot. Real shots are divided into two parts, static pictures and dynamic video. It should be noted that since the effect of using a digital camera and the actual performance of LCD TVs are somewhat different, the following pictures are for reference only.
Full HD picture real shot (a)
Full HD picture real shot (2)
Full HD picture real shot (3)
Full HD video real shot (1)
Full HD video real shot (2)
In the actual screen test, the LG 49LF5400 has a good degree of transparency, achieving a good balance between detail performance and overall picture sharpness. Judging from the video introduction at the beginning of this article, the LG 49LF5400 is also very smooth when playing full HD video. With 24-frame technology and LG's unique XD engine, it can increase the sense of flow and clarity of dynamic images.
7. Summary: The market has laid the tone. Since the amount of reservation for this model in Jingdong has exceeded 2,000 units, its final price is 3099 yuan. Compared with other models currently on the market with a 49-inch price tag of 3,000 yuan, the LG 49LF5400 has not shrunk in appearance, quality, and overall quality. After testing in the above, we can see that it is dynamic. The effects in the picture and static effects are very ideal, and are in a higher gear in this price segment. Therefore, we can see that this TV has a price advantage, mainly because it is functionally streamlined and cost-effective, not to sacrifice image quality.
LG 49LF5400 relatively focused on the performance of the picture quality we mentioned at the beginning of the article, not all consumers need smart operating system or Internet capabilities, LG launched this TV not only fully meet their needs, but also While guaranteeing high quality, it also effectively reduces the purchase cost, so it is an ideal choice for users who like to have simple functions. After all, it takes 3,000 yuan to buy a well-known brand, high-quality, and large-screen TV. Possibly, LG fills this market gap well. Of course, if users need to use the Internet function after purchasing, they can also purchase the network set-top box separately. The combined price of the two also has more advantages than the smart TV with the same size and well-known brands.
The two major directions of TV development in the future LG's new product promotion concept also reveals two major directions for the development of TV in the future: one is to have powerful comprehensive performance and carry more functions, such as comprehensive intelligent internetization, support and mobile phones, etc. Product interaction, with a powerful online video and game platform, somatosensory voice control, you can connect WeChat and so on, is the absolute media center of the family; and the other is to do a good job of TV "points", that is, focus on the product of the industry Design, build the best display effect, regard it as a powerful display terminal, consumers can external set-top boxes, players, game consoles and other equipment according to their own preferences or actual needs.
According to the difference in the number of output phases, it can be divided into single-phase and three-phase AC power supplies.
The output power of single-phase adjustable AC power supply ranges from 500VA to 200KVA, the output power of three-phase adjustable AC power supply ranges from 3KVA to 600KVA, the output voltage is divided into 0 ~ 150Vac, 150 ~ 300Vac, and the output frequency is adjustable from 45Hz to 70Hz with 50/60Hz fixed frequency output.
Through the friendly operation panel, you can read the output data such as output voltage, output current, output power, power factor, etc., providing accurate data records for your test, and can add RS485 interfaces as standard, following the MODBUS-RTU international communication protocol, which can realize remote control and operating status monitoring of the power supplies.
This series of adjustable AC Power Supplies have comprehensive protection functions, such as: over voltage, over current, over temperature and short circuit protections, which can protect the AC power supplies and DUT from damages. At present, it is mainly used for Various electrical appliance manufacturers conduct grid simulation tests on electrical appliances according to the voltage/frequency requirements of different countries. Imported electrical appliances are used for the domestic demand for variable voltage and frequency conversion, as well as various AC motors and AC transformers.
Today, flat-panel TVs have completely entered the era of intelligence. Almost all new television models will be equipped with smart operating systems and have Internet connectivity. Users can directly connect to the Internet via TV, directly access rich Internet video resources and download rich APP applications. . However, for some elderly users or consumers who only need to watch basic TV functions, the smart operating system and Internet functions are very redundant, and they also increase the purchase cost for these users. In order to meet the needs of this segment of consumers, LG introduced a 49-inch LCD TV, the 49LF5400. In this era of smart gaming, it can be described as “back to basicsâ€. It only has the most basic functions, but it will not do anything in terms of quality. The compromise.
Streamlining the "smart" and focusing on the picture quality For consumers who only need basic functions, smart operating systems, installing APP applications, connecting to the Internet and other features are all burdensome. They will only add extra costs to the TV. These users are relatively more It is hoped that TV makers can focus on improving the industrial design of products, improving quality and image quality, and the LG 49LF5400 is a product built on this concept.
Although the price is close to the people, but the LG 49LF5400 is still equipped with the most advanced graphics processing technology, although not equipped with 4K ultra-high resolution, but in the current 4K film source, the game is still very rare 1080p resolution is more practical, after all, 4K LCD panel costs Relatively higher. In addition, this model is equipped with all of LG's most advanced picture quality technologies, such as the use of IPS hard screen panels, equipped with LG's unique triple XD engine, 24 frames of real theaters, etc., in addition to audio support for the second generation " "Hyun bright vocal" technology for users to create better audio and video effects. First of all, let's go through the following video to get a basic understanding of the LG 49LF5400.
In terms of pricing, LG adopted a relatively novel method this time, which is based on the number of products reserved: The initial price of LG 49LF5400 is 3,499 yuan, but with the increase in the number of bookings, when the number of bookings exceeds 2,000, its sale The price dropped to 3,099 yuan. As of noon yesterday, the number of orders has exceeded 5,000, so the final price of the LG 49LF5400 is 3,099 yuan, which is very tempting for a famous brand of 49-inch televisions.
Let's take a detailed test of this model and see how it performs under the price-friendly conditions.
2, Appearance: white body before the wild environment Many consumers for the "people-friendly" TV's common impression is: cheap, simple features, workmanship and poor performance. However, compared with 49-inch LCD TVs with prices of 3,000 yuan for other brands on the market, the LG 49LF5400 omits intelligent Internet features, so it will not make too many compromises in terms of workmanship and color performance. From the perspective of design and workmanship, it still maintains a good standard.
LG 49LF5400 looks white This LG 49LF5400 body is all white, very suitable for any style of home environment to match, the screen around the border on the use of imitation metal elements, and the narrow border design allows it to see It's lighter. In order to ensure the stability of the fuselage, LG 49LF5400 does not reduce the thickness of the frame to the extreme, but it will not seem burdensome.
LG 49LF5400 LG 49LF5400 fuselage on the back of the fuselage contains "bright spots", from afar it is completely white, and the front echoes, but in fact on both sides of the border and the back above the use of a large number of ancient Chinese copper coins The pattern elements represent auspiciousness and wealth.
Copper coin design on the back of LG 49LF5400
The LG 49LF5400 coin design symbolizes the auspicious LG 49LF5400's coin pattern is relatively small, so it won't disappoint the host, playing embellishment and rendering. However, due to the fact that the back of the TV's body is seldom noticed by users, we feel that it would be better if it were “transferred†to the front.
Remote Control of LG 49LF5400
Because it does not carry any intelligence-related elements, so the LG 49LF5400 uses the most traditional button-type remote control, but also does not have voice and air mouse features, it also put a lot of shortcut keys are placed on the remote control, such as menu settings , screen aspect ratio, program guide, sleep settings, etc., allows users to quickly operate.
3. Materials: not luxurious but solid and reliable In terms of overall materials, although the LG 49LF5400 does not use components such as metal backplanes as high-end models, it is also solid and reliable. , It will not appear severe shaking, the overall market price than the 49-inch LCD TV is more solid, solid.
The border of LG 49LF5400 with the word "2015" is affixed with the words "2015 NEW" on the upper right of the body of LG 49LF5400, indicating that it is the model that LG will push next year. The TV is currently accepting reservations and will be officially released at 10:00 on the morning of December 10.
LG 49LF5400 Brands LOGO
The bottom frame of LG 49LF5400 also uses a metal texture element (the actual material is engineering plastics). Its brand LOGO is located in the center of the bottom frame and is very eye-catching. In addition, its control buttons and switch buttons follow the previous five-position lever. , hidden under the brand LOGO.
Video interface of LG 49LF5400
LG 49LF5400 USB and HDMI Interface In the video interface, LG 49LF5400 is equipped with two HDMI, component, AV, cable and other common interfaces, and is equipped with a USB data interface, allowing users to external U disk and mobile hard disk and other large capacity Storage device, directly read the multimedia file. Although the overall interface is not particularly rich, it is basically enough.
4, menu: simple and quick and easy to use Let's take a look at the menu design part of the LG 49LF5400. Since the functions are relatively basic, this model only provides basic settings and related functions such as automatic shutdown, file management, etc. Even if you do not read the instructions, you can easily use most of the functions for older people. The statement is very convenient.
LG 49LF5400's menu Through the video on the first page, we can see that the LG 49LF5400 operates very smoothly, which has a lot to do with its simple features, and it will not cause software errors or crashes.
Image settings
Advanced Image Settings In the advanced image settings, we can see that the LG 49LF5400 has features such as dynamic contrast, dynamic color, gamma adjustment, noise reduction, and anti-glare effect, which are basically hard to see in the same price model. To that, LG shows its great importance to the display of this TV.
Sound settings
The file management function LG 49LF5400 supports direct playback of most pictures, audio and video files. In the video introduction at the beginning of the article, we can see that the speed of reading pictures is very fast. Even if you open a folder containing multiple files, open And the preview is very fast.
5, color: quality of color is more outstanding Below we take a look at the part of the color expression that we are most concerned about, we through the objective and subjective two major ways to carry out. First of all, in the objective test section, we use the Topcon BM7A luminance colorimeter to complete. Before the test we let the LG 49LF5400 work for one hour and restore it to the factory mode.
Test Instruments: Topcon BM7A Brightness Colorimeter
LG 49LF5400 color test results Through the above picture, we can see that the NTSC color gamut of the LG 49LF5400 is about 76%, which is slightly higher than the current mainstream LCD TVs and LCD monitors, which can mainly perform relatively more vivid red and green, However, it is somewhat lacking in some blue and orange colors, but overall it has achieved satisfactory results.
6, actual combat: the dynamic picture performance is smooth After watching the above objective test results, the next for everyone to show 1080p full HD image content real shot. Real shots are divided into two parts, static pictures and dynamic video. It should be noted that since the effect of using a digital camera and the actual performance of LCD TVs are somewhat different, the following pictures are for reference only.
Full HD picture real shot (a)
Full HD picture real shot (2)
Full HD picture real shot (3)
Full HD video real shot (1)
Full HD video real shot (2)
In the actual screen test, the LG 49LF5400 has a good degree of transparency, achieving a good balance between detail performance and overall picture sharpness. Judging from the video introduction at the beginning of this article, the LG 49LF5400 is also very smooth when playing full HD video. With 24-frame technology and LG's unique XD engine, it can increase the sense of flow and clarity of dynamic images.
7. Summary: The market has laid the tone. Since the amount of reservation for this model in Jingdong has exceeded 2,000 units, its final price is 3099 yuan. Compared with other models currently on the market with a 49-inch price tag of 3,000 yuan, the LG 49LF5400 has not shrunk in appearance, quality, and overall quality. After testing in the above, we can see that it is dynamic. The effects in the picture and static effects are very ideal, and are in a higher gear in this price segment. Therefore, we can see that this TV has a price advantage, mainly because it is functionally streamlined and cost-effective, not to sacrifice image quality.
LG 49LF5400 relatively focused on the performance of the picture quality we mentioned at the beginning of the article, not all consumers need smart operating system or Internet capabilities, LG launched this TV not only fully meet their needs, but also While guaranteeing high quality, it also effectively reduces the purchase cost, so it is an ideal choice for users who like to have simple functions. After all, it takes 3,000 yuan to buy a well-known brand, high-quality, and large-screen TV. Possibly, LG fills this market gap well. Of course, if users need to use the Internet function after purchasing, they can also purchase the network set-top box separately. The combined price of the two also has more advantages than the smart TV with the same size and well-known brands.
The two major directions of TV development in the future LG's new product promotion concept also reveals two major directions for the development of TV in the future: one is to have powerful comprehensive performance and carry more functions, such as comprehensive intelligent internetization, support and mobile phones, etc. Product interaction, with a powerful online video and game platform, somatosensory voice control, you can connect WeChat and so on, is the absolute media center of the family; and the other is to do a good job of TV "points", that is, focus on the product of the industry Design, build the best display effect, regard it as a powerful display terminal, consumers can external set-top boxes, players, game consoles and other equipment according to their own preferences or actual needs.
Variable Frequency AC Power Supplies
The VFP series AC Power Supplies are high precision, high efficiency, low THD adjustable AC power supplies that converts the input mains power through AC→DC→AC conversion, and gives a pure sine wave AC output with adjustable voltage & frequency within a certain range. Also known as Variable Frequency AC Power Source.
According to the difference in the number of output phases, it can be divided into single-phase and three-phase AC power supplies.
The output power of single-phase adjustable AC power supply ranges from 500VA to 200KVA, the output power of three-phase adjustable AC power supply ranges from 3KVA to 600KVA, the output voltage is divided into 0 ~ 150Vac, 150 ~ 300Vac, and the output frequency is adjustable from 45Hz to 70Hz with 50/60Hz fixed frequency output.
Through the friendly operation panel, you can read the output data such as output voltage, output current, output power, power factor, etc., providing accurate data records for your test, and can add RS485 interfaces as standard, following the MODBUS-RTU international communication protocol, which can realize remote control and operating status monitoring of the power supplies.
This series of adjustable AC Power Supplies have comprehensive protection functions, such as: over voltage, over current, over temperature and short circuit protections, which can protect the AC power supplies and DUT from damages. At present, it is mainly used for Various electrical appliance manufacturers conduct grid simulation tests on electrical appliances according to the voltage/frequency requirements of different countries. Imported electrical appliances are used for the domestic demand for variable voltage and frequency conversion, as well as various AC motors and AC transformers.
Variable Frequency AC Power Supplies, AC Variable Frequency Power Supplies, Variable Frequency AC Power Sources, Variable Frequency Power Supplies, Variable Frequency Power Sources
Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com