Array substrate, preparation method thereof and display panel
An array substrate and substrate substrate technology, which is applied in the manufacture of semiconductor/solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of poor TFT stability, uneven display screen, start-up voltage drift, etc., to improve working stability, Avoid short circuits and improve user experience
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[0063] The embodiments of the present application provide an array substrate, such as figure 2 As shown, the array substrate includes: a base substrate 1, a light shielding layer 2 located on the base substrate 1, a buffer layer 3 located on the light shielding layer 2, and a buffer layer 3 located on the buffer layer 3 The source layer 8, and the light shielding part 11; the buffer layer 3 has a groove 12;
[0064] The active layer 8 includes: a semiconductor region 4, and a first conductive region 9 and a second conductive region 10 of the semiconductor region 4;
[0065] The semiconductor region 4 and the light shielding portion 11 fill the groove 12; such as image 3 As shown, the shape of the orthographic projection of the light shielding portion 11 on the base substrate 1 is annular, the side surface of the semiconductor region 4 is completely surrounded by the light shielding portion 11, the first conductive region 9 and the The second conductive region 10 is located...
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