Abstract: A display panel, a method for driving a display panel and a display device. The display panel includes a demultiplexer, a data terminal, data lines, and sub-pixels, the demultiplexer includes an input terminal connected to the data terminal. The demultiplexer includes switches connected to data lines, which are connected to the sub-pixels including a first sub-pixel, a second sub-pixel, and a third sub-pixel that emit lights of different colors. The method includes: supplying, by the data terminal, data signals to the input terminal of the demultiplexer, and turning on the switches with predetermined time durations respectively to input the data signals to the data lines, the data signals including a first data signal corresponding to the first sub-pixel, and a turned-on time duration of the switch corresponding to a time period in which the first data signal is supplied to the input terminal of the demultiplexer being the longest.

Abstract: The present invention features compositions and methods for the localization and concentration of various growth factors (e.g., vascular endothelial growth factor (VEGF), or an angiopoietin-1 (ANG1) protein, or an angiopoietin-2 (ANG2) protein) within a scaffold structure. The present invention may also be used to promote the rebuilding of vasculature on de-celled organs (e.g., a kidney) or artificial organs.

Abstract: A technology of 3D printing integration of hard materials and cells, a preparation of bone-repair functional module with osteogenic microenvironment, bone organoid method and the application of quick repair of bone defects are provided. A preparation method of biological microenvironmental factors as independent osteogenic factors is further provided. The present integrated 3D printing technology realizes 3D printing of cells and hard materials synchronously by adjusting the temperature, so as to build a real sense of biomimetic bone tissue, which can be customized according to the specific defects and clinical needs of patients.