Flat panel TV is mainly a kind of commonly used television appliances in daily life. Flat panel TV is mainly flat panel display. Compared with traditional TV series or traditional display, flat panel TV is more light and thin, and its characteristics are very good. It solves the problem of slow response and low sensitivity of some levels. At the same time, it also consumes energy Very low radiation does not have very healthy characteristics for the human body.
In our daily life, we also have to face some problems in choosing flat-panel TV. At the same time, from the perspective of contrast, dynamic definition and some service life are the focus of our attention, so we must pay attention to these purchasing skills when purchasing in daily life.
1. Contrast: the contrast of plasma is mostly 3000:1, 4000:1 and 5000:1, even as high as 10000:1, while the contrast of LCD TV is basically between 400:1 and 1200:1. In the environment with sufficient lighting such as stores, the picture of LCD TV will be brighter than that of plasma; however, in the relatively dark environment of home, LCD will be more dazzling. For example, if the brightness is lowered, it will lose the sense of image hierarchy and the details of dark picture. Compared with plasma, the picture is softer, clearer and clearer.
2. View angle: due to the different light-emitting principles, although the viewing angle of plasma and LCD TV can reach 170 degrees, when viewing at a large deflection angle, the picture will have color deviation, while the plasma has no such problem. Therefore, in the whole family to watch or living room area is larger, plasma TV is more suitable.
3. Dynamic definition / response speed: dynamic definition refers to the visual clarity that human eyes feel when watching moving pictures. The response speed is the response time of TV circuit to moving picture processing. Plasma has excellent dynamic definition and extremely fast response speed (less than 1ms), whether it is still scenery pictures or fast sports pictures, can be clearly displayed, without tailing phenomenon. The response speed of liquid crystal is between 8 and 25 ms. when playing the low-speed moving picture, the picture quality is more delicate than that of plasma, but the dynamic picture performance is far inferior to that of plasma. When playing the fast moving picture, it is easy to produce tailing phenomenon and image overlap, which will cause visual fatigue and affect the health of vision.
4. Power consumption: from the product data, the power of 42 inch plasma is generally about 350W, higher than that of liquid crystal of the same size. However, due to the different light-emitting principle, the power consumption of plasma and liquid crystal in different pictures is also different. Plasma is the screen pixel self luminous, with the change of screen brightness, power consumption is also changing, 350W refers to its power at peak brightness. No matter how the picture changes, the backlight of liquid crystal always glows, so the power consumption is fixed. For example, the power consumption of plasma is higher when playing variety shows with brighter pictures; while in ordinary brightness pictures (news, sports events, TV series, etc.), plasma and liquid crystal are almost the same; when the picture is relatively dark, such as playing movies, the power consumption of plasma is lower than that of liquid crystal.
5. Service life: at present, both plasma and liquid crystal TVs can reach 60000 hours of display life (display capacity decreases by 50%), but in fact, after 16000 hours, plasma and LCD TVs will have certain screen display capacity attenuation, and the attenuation range is about 10% - 40% according to the actual use.
The above is how to choose a tablet computer. The characteristics of tablet computer are very good. It solves the problem of slow response and low brightness of some levels. At the same time, it is also very low radiation for energy consumption. In the selection, we should pay attention to the key points of purchasing, such as dynamic definition and some service life. We must do the right thing choice.
