Internet cafe big screen weapon! Evaluation of BM320F display in 800 million time and space

　　[PConline evaluation]As a niche old brand, "800 million time and space" seems more like a sentimental existence to some old users. Since the brand was founded in 1992, it has been committed to the PC market. In 2001, it was among the top ten famous brands in China. After the subsequent transformation, it engaged in the research and development and production of liquid crystal display materials, became the main domestic liquid crystal material provider, and gradually faded out of the consumer market.

　　Until this year, Huishijie Electronics Co., Ltd. was authorized by the brand in the field of 800 million time and space display, and the "800 million time and space" products returned to the PC market. BM320F is the masterpiece of big screen, with 32-inch IPS-ADS panel and 10.7mm slim steel frame, which strives to bring strong visual impact to consumers in both display effect and appearance.

● Monitor specification parameters

　● Introduction to the features of BM320F in 800 million time and space:

　　The above table lists the basic parameters and features of this new product. You can read it in detail to deepen your understanding of this product. Let’s start with PConline and make a detailed evaluation of it.

Appreciation of appearance and details of BM320F in 800 million time and space;

　　800 million time and space BM320F is a 32-inch large-screen display, which is made of IPS-ADS panel material, closely follows the fashion trend in appearance, and incorporates the minimalist design concept and extremely narrow bezel, making this display more eye-catching.

　　The clean back is made of matte texture, and the screw holes on the back indicate that this large-screen monitor supports wall hanging function.

　　BM320F will make the fuselage thickness 10.7mm in 800 million time and space, and the slim design will make the fuselage light and thin. Aluminum alloy middle frame is used around the screen to ensure the strength of the fuselage.

　　The border of the 800 million-hour BM320F is one of its appearance features. The super-large screen size is matched with the extremely narrow border of only 6.7mm, so that the line of sight is not limited by the border, thus having a better view.

　　BM320F in 800 million time and space puts the physical OSD button at the back of the display with the logo on the front, which is both beautiful and convenient to operate.

　　Electroplated aluminum alloy die-casting base, beautiful luster, showing gorgeous and elegant temperament.

　　In terms of interface, it is equipped with two common video input interfaces, DVI and VGA, which basically meet the needs of users for multi-platform access.

　　According to the nameplate information, the power of this 32-inch large-screen monitor is only 35W, and its energy-saving and environmental protection features make it suitable for bulk purchase in Internet cafes, offices and other places.

● Gray scale test

　　Gray scale refers to the hierarchical relationship between the darkest black and the brightest white of a display. In terms of contrast between light and dark and black and white color transition, the clearer the image, the more natural the transition, the better. On the gray scale, the performance of 32-level gray scale and 256-level gray scale is mainly used for testing.

　　In the 32-level gray-scale real shot, the color scale display of BM320F in 800 million time and space is relatively general, although there is no obvious color difference, and the gradient range is small. The boundary of some color blocks in the upper left corner is not clear, so it is difficult to distinguish.

　　However, it performed well in the 256-level gray scale test. It can be seen from the real shot that this gray scale gradient has a wide transition range, and the transition is more natural and distinct than the 32-bit gray scale, and most of the squares are completely displayed.

● Test

　　In terms of color saturation, the brighter and more transparent the picture displayed by the display, and the smoother the transition, the better the performance, and vice versa.

　　800 million time BM320F adopts IPS-ADS panel, which has good performance in color saturation, clear image quality and full color. Excessive is natural, and the color has high permeability.

● Test

　　In the real shot, there are slightly dark areas on the left and right edges of BM320F screen in 800 million time and space, but the overall dark part is not obvious, which is good enough for a 32-inch screen.

　　There is no light leakage at the edge of the screen when the monitor is in a real black picture. Excellent performance.

● Contrast test of image restoration effect

　　The following chart is a comparison between the real shot and the original picture, from which we can basically see how the color reproduction effect of a display is.

　　Note: Due to the shooting of the camera, there will be some loss in the real shot picture, and the style of the picture will be different due to the different cameras. Here is for basic reference only.

　　It can be seen from the comparison chart of the color reproduction effect of the picture that the BM320F display in 800 million time and space has a deep reproduction of the red in the three primary colors, and the other colors are still more accurate; In the natural scenery picture test, the color of the safflower picture is biased, and the color is more orange. The green plant map is slightly brighter; The ultra-high contrast of this monitor is excellent in LCD pictures, which can highlight the details of the picture. The character’s skin color is slightly brighter, and the overall restoration effect is more natural and delicate.

● Measured data of BM320F display in 800 million time and space.

　

　　The 800 million space-time BM320F adopts IPS-ADS high-definition panel, and the viewing angle can reach 178. From the real shot pictures, the multi-view images are uniform, the colors are consistent and the brightness distribution is uniform. It can easily meet the viewing needs of users from different angles.

● Display brightness | Contrast | Color gamut | Color temperature | Color level | Brightness uniformity test

　　The following data were tested by the professional monitor screen color correction instrument "Starscream Spyder4Elite 4". The test items include color gamut coverage, color reproduction accuracy, color temperature consistency, chromaticity uniformity, brightness uniformity, gamma curve and so on.

Color temperature of ambient light: 6500K K.

Ambient light illumination: 51Lux

Signal input: DVI

Comply with ISO3664 standard.

● Color gamut test:

Color gamut coverage: 97% sRGB 76% AdobeRGB

　　After measuring the color gamut of this monitor, it is found that its sRGB color gamut can reach 97% and Adobe RGB color gamut can reach 76%, and the color gamut coverage is relatively normal, which basically meets the needs of mass users for color diversification.

● Brightness uniformity test

　　According to the brightness uniformity test, the brightness value of 225.1cd/㎡ in the center of BM320F is the highest, while the brightness value in the lower left corner is the lowest, which is 198.3cd/㎡, and the brightness difference is 12%. Compared with the 32-inch screen, the overall uniformity is controlled in an acceptable range, and the overall screen display is even and soft.

● Color temperature consistency test:

　　The purpose of color temperature consistency test is to test the stability of white point color temperature of display under different brightness.We test the brightness of all-white picture and all-black picture as well as chromaticity coordinates when the brightness level is 0%, 25%, 50%, 75% and 100% respectively, and calculate the contrast and color temperature values. The color temperature value and contrast ratio should not change much under each brightness.

　　In 800 million time and space, the white point color temperature of BM320F is kept at 7300K under different brightness, and the performance is very stable. Compared with the standard 6500K color temperature, the overall display effect is slightly cooler.

● Color standard test

　　In terms of color accuracy, Δ E value is regarded by us as a key indicator to measure the quality of a product, Δ The closer e is to 1, the more accurate the color standard is. The average of this monitor Δ E is only 1.11, which is very close to the standard level, and the overall performance is excellent. And Δ The maximum value of e is only 3.81, which shows that this monitor has a high level of accuracy in color reproduction.

When △E≤ 1, the human eye can hardly distinguish the difference between the two colors;
When 1<△E<3, the human eye needs to be able to distinguish subtle color differences after comparison;
When △E<5, the human eye can distinguish the color difference and consider it as two similar colors.
When △E>5, most people can see the color difference and think it is a completely different color.

Summary of PConline evaluation room:

800 million time and space BM320F　　picture　　evaluating　　forum　　quote

　　As a large-screen display suitable for Internet cafes and home audio-visual entertainment, the 10.7mm slim body and 6.7mm ultra-narrow bezel of the 800 million-hour BM320F, supplemented by baking paint, have a noble and simple appearance. In terms of screen display, the performance of BM320F is also remarkable. IPS-ADS panel provides ultra-wide visual range and 16.7M color number display, and the performance of color reproduction accuracy is in the upper-middle level.

　　800 million time and space, after many years to return to the consumer market, not only to reconsider the current market demand, but also to get consumer recognition of its brand. Therefore, 800 million time and space promised to provide an effective warranty for BM320F for up to three years, so as to dispel users’ concerns about product quality. At present, the price of this product is 1299 yuan, which is very cost-effective. Friends who like to pursue big-screen entertainment may wish to consider it.