Introduction to the functions of various components of the LCD display screen


 
       液晶显示屏为每个像素配备半导体开关,其处理过程类似于大规模集成电路的处理过程。因为每个像素可以直接由点脉冲控制,所以每个节点相对独立并且可以连续控制。这种设计不仅是提高了显示屏的反应速度,而且可以精确控制显示灰度。因此,TFT液晶显示屏的颜色更加逼真。
 
液晶显示屏各部分的功能描述如下:
1.TFT:薄膜晶体管,一种确定液晶是否带电的开关器件(薄膜晶体管只接通或断开,当薄膜晶体管接通时,从其源输出电压,对液晶和存储电容器充电,充电电压由LCD驱动电路确定)。
 
2.玻璃底板:用于隔离。
 
3.行电极:扫描电极,也称为栅极总线,连接到每个子像素中的薄膜晶体管的栅极。
 
4.列电极:信号电极,也称为漏极总线,连接到每个子像素中的薄膜晶体管的漏极。
 
5.存储电容:容量约为0.5pF。其极与透明显示电极/透明公共电极连接。由于透明显示电极与透明公共电极之间的容量约为0.1pF,在下一次画面更新之前无法保持电压(例如,当刷新率为60 Hz时,保持时间约为16ms),因此需要借助存储电容进行维护。
 
6.偏振玻璃板:即偏振板,内偏振玻璃板1为水平开口,外偏振玻璃板2为垂直开口。
 
7.透明显示电极与每个薄膜晶体管的源极连接,并与透明公共电极形成充电电极,以对每个像素中的液晶进行充电。
 
8.彩色滤光片:也称为彩色滤光玻璃,是一块由许多晶体管组成的玻璃。LCD屏幕显示彩色图像,这通常是通过在透明公共电极和偏振玻璃板之间添加滤色器来实现的。当光通过液晶层时,它通过滤色器。由于滤色器水平排列为红色、绿色和蓝色,因此R、G和B颜色被划分为三个独立的点,每个点对应于一个子像素。另一方面,相邻的R,G,B点具有不同的灰度变化,同时形成一个像素,并且许多像素具有不同的灰度变化。从空间相加和色彩混合的原理,我们可以看到一幅彩色图片。
 
9.光漫射器:背光发出的光经过光漫射器后,可以均匀分布到每个像素上。
 
 
 
 

RELATED NEWS


How do LCD panels work?

At present, most of the liquid crystal display technologies use TN, STN, and TFT as the main axes, so we will discuss their operation principles from these three technologies.


Introduction to the functions of various components of the LCD display screen

液晶显示屏为每个像素配备半导体开关,其处理过程类似于大规模集成电路的处理过程。因为每个像素可以直接由点脉冲控制,所以每个节点相对独立并且可以连续控制。这种设计不仅是提高了显示屏的反应速度,而且可以精确控制显示灰度。因此,TFT液晶显示屏的颜色更加逼真。


The advantages and application fields of small pitch LED display screens

With the rapid development of international business informatization, LED display screen products have been widely used in fields such as indoor and outdoor advertising, cultural squares, commercial buildings, hotels, shopping malls, sports venues, and stage performance backgrounds. It can be seen that the usage rate of LED display screens is still quite high, but these LED products are all using traditional spacing LED displays. With the gradual maturity of LED display screen technology, LED display screen manufacturers have begun to focus on the broader indoor display screen application market. Have you ever thought of placing a small pitch LED display screen in the living room and conference room after LCD TVs and projectors? Dreams are necessary, but they still need to be crossed step by step.


How can we obtain the optimal quotation for LED display module?

Q: How can we obtain the optimal quotation for LED display module? Answer: The following customers can get the best price for LED display module:


How to repair and clean LED display screens?

Firstly, we need to conduct inspections The general inspection of LED display screens adopts a "monthly inspection system", while the maintenance of large LED display screens follows a "weekly inspection system". The specific maintenance content and response speed promise:


Seven tips for improving the heat dissipation of indoor LED display screens

In practical applications, improving the heat dissipation of indoor LED display screens not only effectively improves the efficiency of LED display screen heat dissipation, but also achieves the effect of saving electricity, which is more conducive to improving the service life of LED display screens.