發(fā)布時間：2019-03-27 18:14

【摘要】：針對液晶面板和觸摸屏綁定后容易出現(xiàn)顯示Mura的問題,提出了不同液晶原屏需選用不同光學(xué)膠或者不同綁定工藝的方法。首先,對液晶屏的結(jié)構(gòu)進行等效簡化,將其等效為:上偏光片、CF基板、液晶層、TFT基板以及下偏光片,并對不同液晶原屏的各部分參數(shù)進行測試。接著,根據(jù)實際尺寸建立仿真模型并將光學(xué)膠的參數(shù)代入進行仿真分析。熱分析結(jié)果表明,不同的液晶原屏需要采用不同熱力學(xué)參數(shù)的光學(xué)膠進行綁定。通過仿真得出結(jié)論,文中所用的液晶原屏1需采用彈性模量為1.65×10~8Pa以下、線膨脹系數(shù)為1.2×10~(-3) m/℃以下的光學(xué)膠,而液晶原屏2需采用彈性模量為1.65×10~7Pa以下、線膨脹系數(shù)為1.2×10~(-3) m/℃以下的光學(xué)膠。本文提出的光學(xué)膠的選用方法可操作性強,對實際生產(chǎn)中的良品率提高具有重要的意義。
[Abstract]:In order to solve the problem that Mura display is easy to appear when LCD panel and touch screen are bound, a method of selecting different optical adhesive or different binding process for different LCD panel is put forward in this paper. Firstly, the structure of LCD screen is simplified equivalent to: upper polarizing plate, CF substrate, liquid crystal layer, TFT substrate and lower polarizing plate, and the parameters of each part of different LCD screen are tested. Then, the simulation model is established according to the actual size, and the parameters of optical adhesive are substituted for simulation analysis. The results of thermal analysis show that different liquid crystal screens need to be bound by optical adhesives with different thermodynamic parameters. The simulation results show that the elastic modulus of LCD panel 1 is less than 1.65 脳 10~8Pa and the linear expansion coefficient is below 1.2 脳 10 ~ (- 3) m / 鈩，

本文編號：2448423