With the advent of the Spring Festival, the television market will usher in a peak of consumption. In today's "technical" speculation, 4K flat-panel TVs featuring high-definition picture quality have become the focus of the market. Into the store, each brand will have a sticker “4K†in front of the TV!
The introduction and recommendation of the sales staff in the store are all about the head, what technology and parameters have been used, and what effect television has on these technologies. Although many consumers do not know what these technologies and parameters are, there are these sounding high-tech parameters that make them particularly true.
But what exactly did you choose?
According to reports, there are more than 20 brands of 4K flat-panel TVs sold through physical stores and network platforms, involving thousands of products of different specifications and types!!!
The solution comes:
In order to provide consumers with fair, objective, and detailed product information and service information, the Tianjin Consumers Association conducted a comparative test of 4K flat-panel TVs from October 2015 to January 2016. The comparison test sample involves 17 brands of 4K flat-panel TVs with screen sizes ranging from 48 to 55 inches, and the purchase price ranges from RMB 2599 to RMB 6,499, which basically covers the brand and network of 4K flat-panel TVs in the city. Shopping platform kingpin brand.
17 brands of 4K TVs are: Skyworth, LG, Hisense, Sharp, LeTV, Xiaomi, Pioneer, PPTV, Samsung, TCL, Haier, Panda, Changhong, Sony, Philips, Konka, Sanyo.
Each brand sample was tested on 12 items, including 4 basic requirements for appearance, structure, signage, image display format, clarity, re-evaluation rate, horizontal brightness angle of view, brightness (white field brightness and peak brightness), and contrast ratio. , brightness uniformity, color gamut coverage, color brightness and other 8 performance tests.
As there is no national standard for 4K flat-panel TVs at present, in accordance with the relevant national standard "Test methods must be objective, and can provide meaningful and reproducible results" requirements, the City Consumer Association entrusts testing organizations to draw reference standards and propose testing methods. Comparing the standards and bringing the experts to the argumentation and approval of the release of SPBJ JD.1-2015 Super HD Display Comparison Test Implementation Rules (hereinafter referred to as the Rules).
Today, the authority came out! Oven!
First of all science and technology problems:
What does "4K" mean?
Official explanation: 4K TV is the use of 4K resolution TV, 4K resolution refers to the pixel resolution of 4096×2160, which is 4 times the resolution of 2K projectors and high-definition television, belonging to Ultra HD resolution. At this resolution, viewers will be able to see every detail in the picture, every close-up.
In a word: a clearer TV!
The evaluation results are as follows:
Basic requirements: Image display format and industry standard SJ/T The appearance, structure, logo, etc. of the digital TV liquid crystal display general specification requirements. The results of this comparative test show that the test results of the 17 brand TV sets meet the above standards. Claim.
Performance test: mainly refers to the light color performance, which is the main test item to measure the display characteristics of flat-panel TVs. The items involved in this comparative experiment include 8 items such as sharpness, reappearance rate, horizontal brightness viewing angle, brightness (white field brightness and peak brightness), contrast, brightness uniformity, color gamut coverage, and color brightness. (The red line in the figure indicates the required limit)
Sharpness performance is the key performance of a 4K flat-panel TV, which is different from ordinary flat-panel TVs. It refers to the clearness of details of TV images that can be perceived by human eyes. The horizontal or vertical resolution of 4K flat-panel TVs from five brands such as Skyworth, Konka, Changhong, Panda and Philips did not meet the requirements. In particular, the test results of 4K flat-panel TVs with 2 brand names such as Konka and Panda were lower than the test results. Other brand sample results.
Due to the directionality of the screen, the brightness of the image will change with the viewing angle, leading to the problem of viewing angle of the flat-panel TV. The rule requires that the viewing angle of brightness in the horizontal direction of the screen is ≥85°, that is, it can be obtained in a horizontal range of at least 85°. Better image quality. The test results of nine sample 4K flat-panel TVs such as PPTV, TCL, Changhong, Sony, Haier, LG, Sanyo, Philips and Xiaomi failed to meet the requirements.
Brightness refers to the brightness of the picture, and higher brightness can enhance the picture performance and viewing effect of the television to a certain extent. The Philips brand 4K flat-panel TV is slightly below the required limit.
Contrast is the gradient of the screen display from black to white. The larger the ratio, the more gradient levels from black to white, and the richer the color performance. Panda, Changhong and other brands of 4K flat-panel TVs have lower sample contrast detection indicators.
Brightness uniformity refers to the difference in brightness between the center of the television screen and the edge image. The test results of the brightness uniformity of the 4K flat TV set of Skyworth brand failed to meet the regulatory requirements.
Color gamut coverage refers to the percentage of the total visible spectrum area of ​​the uniform color space in the gamut area of ​​the display device. The increase of the color gamut area can not only make the entire TV picture look more real, transparent and layered, but also the clarity of the picture will be greatly improved with the richness of color. Samples of 4K flat-panel TVs from five brands such as Skyworth, Konka, Changhong, Sony, and Panda failed to meet the requirements for the detection of color gamut coverage. In particular, Panda’s 4K flat-panel TVs have a wide gap between the requirements.
Color brightness refers to the brightness or brightness of a color. It is one of the three elements of color. The relationship between the color level and space mainly depends on the contrast of the brightness of the color. The test results of the color brightness of 4K flat-panel TVs from five brands such as Konka, Changhong, Panda, Pioneer and Philips failed to meet the requirements.
Product distribution and installation services:
Millet music as delivery is not free
17 brands of 4K flat-panel TV samples, millet 4K TV distribution, installation fees, a total of up to 200 yuan. LeTV and Xiaomi 4K flat-panel TVs have to pay 100 yuan for the delivery of goods. Other brands are free to distribute. In the case where only the mounting method is required, millet, panda, Konka, TCL, Changhong and Sharp's 6 brand 4K flat-panel TVs are charged with the installation cost of the rack, in which Panda charges 50 yuan, Sharp charges 60 yuan, and millet. Receive 100 yuan.
Overall, millet brand 4K flat-panel TVs have the highest distribution and installation costs. Xiaomi must charge 100 yuan for the distribution and installation service. In the case of only providing the installation method of the pedestal, Xiaomi also needs to charge a setup fee of 100 yuan. It can be described as the most expensive service.
in conclusion
Don't say anything, direct ranking and scoring!!
Originally, Hisense 4K TV is the strongest! Panda's lowest...
Little friends, know how to choose it? Still do not understand?
Expert advice:
Buy 4K flat-panel TVs to "compared with the three models," consumers in the purchase of a variety of products to compare the quality of the picture, if conditions allow it to carry their own 4K resolution source, through the USB interface Play on the store prototype to see if its display meets its sensory needs. And compare product prices, after-sales service and other aspects, and choose high-cost products.
Before the purchase, we must confirm whether there are other costs besides the purchase price of the product itself, such as shipping fees and installation fees.
Do not transport or disassemble the 4K flat panel TV by yourself. The liquid crystal display is large and fragile, and the screen may be damaged during shipment of the product.
The introduction and recommendation of the sales staff in the store are all about the head, what technology and parameters have been used, and what effect television has on these technologies. Although many consumers do not know what these technologies and parameters are, there are these sounding high-tech parameters that make them particularly true.
According to reports, there are more than 20 brands of 4K flat-panel TVs sold through physical stores and network platforms, involving thousands of products of different specifications and types!!!
The solution comes:
In order to provide consumers with fair, objective, and detailed product information and service information, the Tianjin Consumers Association conducted a comparative test of 4K flat-panel TVs from October 2015 to January 2016. The comparison test sample involves 17 brands of 4K flat-panel TVs with screen sizes ranging from 48 to 55 inches, and the purchase price ranges from RMB 2599 to RMB 6,499, which basically covers the brand and network of 4K flat-panel TVs in the city. Shopping platform kingpin brand.
17 brands of 4K TVs are: Skyworth, LG, Hisense, Sharp, LeTV, Xiaomi, Pioneer, PPTV, Samsung, TCL, Haier, Panda, Changhong, Sony, Philips, Konka, Sanyo.
Each brand sample was tested on 12 items, including 4 basic requirements for appearance, structure, signage, image display format, clarity, re-evaluation rate, horizontal brightness angle of view, brightness (white field brightness and peak brightness), and contrast ratio. , brightness uniformity, color gamut coverage, color brightness and other 8 performance tests.
As there is no national standard for 4K flat-panel TVs at present, in accordance with the relevant national standard "Test methods must be objective, and can provide meaningful and reproducible results" requirements, the City Consumer Association entrusts testing organizations to draw reference standards and propose testing methods. Comparing the standards and bringing the experts to the argumentation and approval of the release of SPBJ JD.1-2015 Super HD Display Comparison Test Implementation Rules (hereinafter referred to as the Rules).
Today, the authority came out! Oven!
First of all science and technology problems:
What does "4K" mean?
Official explanation: 4K TV is the use of 4K resolution TV, 4K resolution refers to the pixel resolution of 4096×2160, which is 4 times the resolution of 2K projectors and high-definition television, belonging to Ultra HD resolution. At this resolution, viewers will be able to see every detail in the picture, every close-up.
In a word: a clearer TV!
The evaluation results are as follows:
Basic requirements: Image display format and industry standard SJ/T The appearance, structure, logo, etc. of the digital TV liquid crystal display general specification requirements. The results of this comparative test show that the test results of the 17 brand TV sets meet the above standards. Claim.
Performance test: mainly refers to the light color performance, which is the main test item to measure the display characteristics of flat-panel TVs. The items involved in this comparative experiment include 8 items such as sharpness, reappearance rate, horizontal brightness viewing angle, brightness (white field brightness and peak brightness), contrast, brightness uniformity, color gamut coverage, and color brightness. (The red line in the figure indicates the required limit)
Product distribution and installation services:
Millet music as delivery is not free
17 brands of 4K flat-panel TV samples, millet 4K TV distribution, installation fees, a total of up to 200 yuan. LeTV and Xiaomi 4K flat-panel TVs have to pay 100 yuan for the delivery of goods. Other brands are free to distribute. In the case where only the mounting method is required, millet, panda, Konka, TCL, Changhong and Sharp's 6 brand 4K flat-panel TVs are charged with the installation cost of the rack, in which Panda charges 50 yuan, Sharp charges 60 yuan, and millet. Receive 100 yuan.
in conclusion
Don't say anything, direct ranking and scoring!!
Little friends, know how to choose it? Still do not understand?
Expert advice:
Buy 4K flat-panel TVs to "compared with the three models," consumers in the purchase of a variety of products to compare the quality of the picture, if conditions allow it to carry their own 4K resolution source, through the USB interface Play on the store prototype to see if its display meets its sensory needs. And compare product prices, after-sales service and other aspects, and choose high-cost products.
Before the purchase, we must confirm whether there are other costs besides the purchase price of the product itself, such as shipping fees and installation fees.
Do not transport or disassemble the 4K flat panel TV by yourself. The liquid crystal display is large and fragile, and the screen may be damaged during shipment of the product.