Two-dimensional display panel and its black matrix structure

Abstract

A black matrix structure includes a semiconductor layer and a light-shielding layer. The semiconductor includes a first surface and a second surface, and the light-shielding layer is provided on the first surface of the semiconductor layer, wherein the second surface of the semiconductor layer is the ambient light incident surface.

Description

technical field [0001] The invention relates to a flat display panel and its black matrix structure, in particular to an OLED display panel with a black matrix structure provided with a light-shielding layer and a semiconductor layer. Background technique [0002] Organic Light Emitting Diode (OLED) display is a kind of electroluminescence (EL) display, which has the advantages of high brightness, fast response, thin and short, low power consumption and wide viewing angle. It is expected to replace liquid crystal displays and plasma displays and become the mainstream of the new generation of flat panel displays. [0003] Generally speaking, because the wire patterns or electrodes made of metal materials inside the OLED display will reflect the ambient light source and cause poor contrast, so the OLED display will be provided with a black matrix or polarizer to prevent Improve the shortcomings of poor contrast. [0004] Please refer to figure 1 . figure 1 It is a schemati...

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Problems solved by technology

[0005] However, because the existing black matrix structure is composed of materials such as chromium, chromium oxide and chromium nitride, toxic substances will be produced after the etching process, such as hexavalent chromium (Cr 6+ ) and cause environmental pollution problems, so many advanced countries have studied to limit the scope of application of the above materials

Furthermore, the antistatic ability of the existing black matrix structure is not good, and it is easy to cause the organic light emitting diode display to be damaged by static electricity

In addition, although the polarizing film attached to the surface of the substrate can effectively reduce the reflection caused by the ambient light source, the light emitted by the OLED itself has a transmittance of only about 43%, which reduces the brightness of the OLED display. With the increase of power consumption, the practice of installing polarizers at the same time will also cause problems such as increased panel thickness and attachment process yield.

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