A kind of thin film transistor used in display panel and display panel

Abstract

The present invention provides a thin film transistor used in a display panel and the display panel. The thin film transistor includes: a gate located above a glass substrate in the display panel and a gate insulating layer, and the gate insulating layer covers the gate; The electrode is located in the non-display area of ​​the display panel; an active layer is provided above the gate insulating layer, and the active layer is located above the gate, and a source electrode and a drain electrode are also provided on the active layer; wherein, in the direction away from the glass substrate Above, the gate sequentially includes a first non-metal layer and a metal layer. The present invention can improve the influence of reflected light, reduce the reflectivity and improve the display quality without increasing the cost of the display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a thin film transistor used in a display panel and the display panel. Background technique [0002] The structure diagram of AM (active) display device is as follows figure 1 As shown, the schematic diagram of the structure of the thin film transistor contained in it is shown in figure 2 shown. figure 1 with figure 2 The symbols 1', 2', 3', 4', 5', and 6' are glass substrates, insulating layers, a-Si layers (amorphous silicon layers), data lines, gate lines, and pixel electrodes, respectively. [0003] AM display devices include AM-OLED (OLED, organic light emitting diode) and AM-LCD (LCD, liquid crystal display) panels. [0004] The metal electrodes of thin film transistors in AM display devices generally use metals such as Cu, Al, Ag, Au, Mo, Cr or composite metal structures such as Mo and Cu, Mo and Al, Mo and Al, and Mo. However, no matter whether the previous single ...

AI Technical Summary

Problems solved by technology

[0005] In the case of external light source illumination, the metal electrode of the thin film transistor has strong reflected light, which affects the display effect of the AM display device, especially when the angle between the human line of sight and the AM display device is small, the reflection The more intense the light, the greater the impact on the picture

In order to improve the metal reflection of the AM-OLED panel, the current practice in the industry is to attach a 1 / 4λ wavelength polarizer on the AM-OLED panel to reduce the metal reflection, but this will increase the cost of the AM-OLED panel

Similarly, AM-LCD panels also have the problem of reflective metal electrodes. The current practice is to add a low-reflection film layer and anti-glare structure to the upper polarizer of the AM-LCD panel to improve the impact of reflected light, thereby improving the display quality. , which will increase the complexity of the AM-LCD panel structure and also increase the cost of the AM-LCD panel

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