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发明公开
CN107369693A 一种阵列基板及其制备方法、显示面板 有权

一种阵列基板及其制备方法、显示面板
摘要：
本发明涉及显示技术领域，公开了一种阵列基板及其制备方法、显示面板，阵列基板包括衬底基板和多个薄膜晶体管开关，每一个薄膜晶体管开关包括：形成于衬底基板的遮光块，遮光块形成有开口方向背离衬底基板的第一凹槽；形成于遮光块背离衬底基板一侧的缓冲层，缓冲层与第一凹槽对应的部位形成第二凹槽；形成于第二凹槽内的沟道层；形成于沟道层背离衬底基板一侧的栅绝缘层、栅极、层间绝缘层、源漏电极以及钝化层。上述结构采用非金属材料制备遮挡块，避免出现双TFT效应，且利用第一凹槽两侧凸起遮挡非薄膜晶体管开关区域的光线，可提高薄膜晶体管开关的稳定性。
摘要（英）：

The invention relates to the technical field of display, and discloses an array substrate, a preparation method of the array substrate, and a display panel. The array substrate comprises an underlayer substrate and a plurality of thin film transistor (TFT) switches, wherein each TFT switch comprises a light shielding block formed on the underlayer substrate, a buffer layer formed on one side, deviated from the underlayer substrate, of each light shielding block, a channel layer formed in a second groove, and a grid insulating layer, a grid electrode, an interlayer insulating layer, a source-drain electrode and a passivation layer formed on one side, deviated from the underlayer substrate, of each channel layer; first grooves with opening directions deviated from the underlayer substrate are formed in the light shielding blocks; and the second grooves are formed in the buffer layers corresponding to the first grooves. According to the array substrate, the light shielding blocks are prepared by non-metal materials, so that a double TFT effect can be avoided; and bulges on the two sides of the first grooves are utilized to shield light without a TFT switch region, so that the stability of the TFT switches can be improved.

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