high contrast lcd module made in china

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MiniLED backlights in LCDs can potentially offer numerous advantages over other flat panel display technologies, most notably in high brightness, high contrast ratio, lower power consumption than WOLED TV and higher efficiency. The superior performance makes MiniLED backlights attractive for use in a variety of applications, ranging from large TVs to IT applications. Automotive and industrial applications are also advantageously addressed by MiniLED backlight technologies due to their higher brightness and higher contrast ratio.

DSCC’s Quarterly Advanced IT Display Shipment and Technology Report tracks advanced display shipments and forecasts shipments for all high-end displays into the tablet, notebook PC and desktop monitor markets. We are now in an age of display technology and form factor competition in the IT markets where brands and OEMs can choose between a wide variety of display technologies and alternative form factors.

Due to the expectation that OLEDs and MiniLED backlit LCDs will see growing penetration into the tablet, notebook and desktop monitor markets, DSCC has developed a cost model that compares all existing and emerging advanced display technologies entering these markets. These include a-Si LCD/Oxide LCD/LTPS LCD/ MiniLED backlit LCD/rigid OLED/flexible OLED/foldable OLED/WOLED/Inkjet OLED IT panel display costs. The OLED cost model examines all of the different form factors currently sold into, or coming into, the IT Panel market. In addition, the cost model differentiates between panels made in China, Taiwan and Korea. Panels covered range from 10.9” to 32”. More displays will be added as these categories continue to emerge. The report Includes detailed BOM breakdown, costs and margins and forecasts these parameters out to 2025.

Given the price sensitivity of the TV market, costs play a big factor in determining which TV technologies are likely to dominate. This report quantifies and forecasts costs, prices and margins for panel suppliers at the high end of the TV market, covering 31" to 83" sizes . It covers costs from various regions of production for OLEDs, Quantum Dot (QLED) and LCD. It also examines new approaches to manufacturing OLED TVs including ink jet printing and their impact on costs.

Contrast is one of the main factors that affect the display effect of the liquid crystal module. The so-called contrast refers to the contrast between the bright area and the dark area in the display screen of the liquid crystal module. For monochrome displays, the higher the contrast, the clearer the display, while for color displays, the higher the contrast, the more vivid and vivid the image. There are two main contrast parameters for liquid crystal modules, one is the typical value, and the other is the maximum value. The maximum value is often an instantaneous value, which is not representative, and the typical value has reference value. At present, the contrast ratio of mainstream liquid crystal modules is generally at the level of 400:1 to 600:1, and the good ones can reach 1000:1 or even higher. The contrast of the liquid crystal module is too low, it is difficult to see the display content.

The contrast of the liquid crystal module directly affects the gray level and color level performance in the image. The increase in contrast will make the image have a stronger sense of hierarchy, and the bright and dark areas will be obvious, which means that the user can more easily see the image in the dark and gray conditions of the scene. How to improve the contrast of the LCD module? There are several ways.

This program is the most economical. For liquid crystal modules, different viewing angles require different driving voltages. If the voltage is too low, the LCD module will be dim. When the voltage is too high, the LCD module will display a non-selected segment (ghosting). Therefore, when discussing the best contrast, we must first determine the voltage, and improve the contrast of the liquid crystal module by optimizing the voltage.

The contrast of the liquid crystal module can be improved by improving the panel technology of the liquid crystal module, and the contrast of the display screen using a TN panel is relatively low. IPS and VA technologies can be adopted, that is, liquid crystal modules using IPS type panels and VA type panels. The contrast ratio of the liquid crystal modules of these two types of panels is much higher than that of TN. And generally, the current LCD module manufacturer adopts this technology.

The higher the polarization efficiency of the polarizer, the better the contrast of the liquid crystal module. The effect of the negative display is the most obvious. If the polarization degree of the polarizer is changed from 98% to 99%, the contrast of the negative LCD display can be increased from 45 to more than 1000, and the contrast of the positive LCD can be increased from 7 to 10 . For ambient light, the stronger the reflectivity of the polarizer, the better the contrast; when using a backlight, the higher the transmittance of the polarizer, the better the contrast.

The initial alignment of the liquid crystal molecules in the liquid crystal module determines the contrast, response time, viewing angle and other properties of the display screen, and the alignment layer material can induce uniform alignment of the liquid crystal molecules. The new type of soluble polyimide uses high-quality rubbing fibers and high-quality rubbing equipment to make the liquid crystal molecules evenly arranged, thereby improving the contrast of the liquid crystal module.