Image sticking time

Image sticking time Image sticking Residual image time sifter a black box is displayed. 

Fig. 3.20 Relationship between image sticking time and resistivity of the ceR image sticMi time represents the residual time for a pattern after showii a fixed black box on the panel for 24 hours.

Recently, it was elucidated that dipole moment of ETM (electron transport material) could be an important factor of initial luminance decrease in OLED. It is well known that luminance decrease at initial phase is a main reason for image sticking. In this chater, we will focus on electron transporting material-dependent life-time pattern and found the relationship between dipole moment of electron transpoting material and initial life-time tendency, it is explained how dipole moment of ETM affected initial luminance decrease in OLED [24-26]. 

SPMs are simpler to operate than electron microscopes. Because the instruments can operate under ambient conditions, the set-up time can be a matter of minutes. Sample preparation is minimal. SFM does not require a conducting path, so samples can be mounted with double-stick tape. STM can use a sample holder with conducting clips, similar to that used for SEM. An image can be acquired in less than a minute in fact, movies of ten fiames per second have been demonstrated. ... 

---