基于labVIEW的AM-OLED显示屏测试系统

发布时间：2018-11-15 07:28

【摘要】：为方便对AM-OLED显示屏的各项性能进行测试,本文设计了基于labVIEW(Laboratory Virtual Instrument Engineering Workbench实验室虚拟仪器工程平台)的AM-OLED显示屏V-I-L曲线自动化测试系统,实现了在同一个软件下对显示屏的电压、电流、亮度、色坐标等特性的测试。首先,构建硬件电路即基于FPGA的AM-OLED显示屏驱动电路。接着,在此基础上利用labVIEW平台设计了AM-OLED显示屏V-I-L曲线测试系统的软件系统。最后,利用该系统对自主研发的基于MOTFT技术的12.2cm(4.8in)AM-OLED显示屏进行了测试,验证了系统的可靠性。通过对测试结果进行分析,AM-OLED显示屏达到设计亮度时各像素所需的数据电压约为9.2V。总之,本系统实现了对显示屏性能参数的自动化测试,为显示屏的白平衡调节和AMOLED专用驱动芯片设计提供了数据支持,为显示屏的优化设计指明方向。
[Abstract]:In order to test the performance of AM-OLED display screen, an automatic test system for V-I-L curve of AM-OLED display screen is designed based on labVIEW (Laboratory Virtual Instrument Engineering Workbench laboratory virtual instrument engineering platform. The voltage, current, luminance and color coordinate of the display screen are tested under the same software. First of all, build the hardware circuit that is based on FPGA AM-OLED display driver circuit. Then, the software system of V-I-L curve testing system for AM-OLED display screen is designed based on labVIEW platform. Finally, the 12.2cm (4.8in) AM-OLED display based on MOTFT technology is tested by the system, and the reliability of the system is verified. Through the analysis of the test results, the data voltage of each pixel when the AM-OLED screen reaches the design brightness is about 9.2 V. In a word, the system realizes the automatic test of the display screen performance parameters, provides data support for the white balance adjustment of the display screen and the design of the AMOLED special drive chip, and points out the direction for the optimization design of the display screen.
【作者单位】：华南理工大学电子与信息学院;华南理工大学发光材料与器件国家重点实验室;
【基金】：国家自然科学基金资助项目(No.61204089) 广东省自然科学基金(No.S2012010008648) 中央高校基本科研业务费专项资金资助项目(No.2013ZZ0046)
【分类号】：TN873

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