What are the factors that affect the price of bar LCD screens?
Posting time: 2021-07-29 16:38
Nowadays, the use range of bar LCD screens is more extensive, and there are many types of bar screen products on the market, and the prices of products from different manufacturers are still relatively large. This is a headache for consumers and they don't know how to distinguish and choose. Because various manufacturers have different price positions in the production of bar LCD screens, the quality requirements are also different. Then, what are the factors that cause the different prices of bar LCD screens? Let's briefly introduce it below.
1. The viewing angle of the bar LCD screen
For the LCD monitors currently on the market, the viewing angles are symmetrical, but the top and bottom are not necessarily the same. The top and bottom viewing angles are usually smaller than the left and right viewing angles. Since the light source of the backlight tube has a certain directionality when it is output after refraction and reflection, color distortion will occur when viewed outside this range. Generally, the horizontal viewing angle is the main parameter. The larger the value, the larger the viewing angle.
2. The brightness and contrast of the bar LCD screen
Brightness is one of the important indicators reflecting the performance of liquid crystal displays. The brightness of LCD screens is measured in square candles (cd/m2) or nits, and the brightness is generally between 100 and 130 nits. It should be noted that the data is not all of the product performance. A brighter product is not necessarily a better product. The uniform brightness is the key, which is not found in the product specifications. Whether the brightness is uniform or not is closely related to the number and configuration of the light source and reflector. The brightness of the place far away from the light source must be darker.
3. The response time and refresh frequency of the bar LCD screen (ie scanning frequency)
Response time is a specific indicator of LCD display. It refers to the speed at which each pixel of the LCD display reacts to the input signal, and its unit is milliseconds (ms). The smaller the response time, the faster the pixel response, and the longer the response time. When displaying dynamic images (even the cursor of a mouse), there will be more serious display tailing. The current standard response time of liquid crystal displays should be less than 30ms.
4. Pixel pitch of bar LCD screen
The meaning of the pixel pitch of the bar LCD is similar to the dot pitch of the CRT. However, the former is not as important as the latter for product performance. The number of pixels of an LCD display is relatively fixed. Therefore, as long as the size and resolution are the same, the pixel pitch of all products should be the same. For example, a 15-inch LCD monitor with a resolution of 1024768 has a pixel pitch of 0.297mm (some products are also labeled as 0.30mm).
