Display module, thinning method of display panel, display panel and display device

Abstract

The present application discloses a display module, a thinning method of a display panel, a display panel and a display device, so as to avoid the phenomenon of acid leakage and improve the yield of product preparation. The display module provided by the present application includes: a display panel, a protective film on the surface to be protected of the display panel, a first acid-resistant film on the protective film, and a second acid-resistant film on the first acid-resistant film , and sealant; the display panel includes a substrate to be thinned and a touch substrate disposed oppositely; the surface to be protected is the surface of the touch substrate away from the substrate to be thinned, and the substrate to be thinned is divided into areas to be thinned and non-thinned The protective film covers part of the surface to be protected; the orthographic projection of the first acid-resistant film on the surface to be protected falls into the surface to be protected, and the protective film falls into the first acid-resistant film on the orthographic projection of the first acid-resistant film; The first acid-resistant film falls into the second acid-resistant film in the orthographic projection of the second acid-resistant film; the frame sealant covers the area of ​​the surface to be protected that is not covered by the protective film, the side surface of the touch substrate and the side surface of the non-thinning area.

Description

technical field [0001] The present application relates to the field of display technology, and in particular, to a display module, a method for thinning a display panel, a display panel and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED) products are widely used in display and other fields due to their advantages of self-luminescence, high efficiency, low operating voltage, lightness, and flexibility. In the display device, the touch function is widely used, for example, a touch screen panel (Touch Screen Panel, TSP) can be provided on the OLED panel. In the prior art process of thinning the OLED glass substrate, the glass is mainly peeled and thinned by immersion in acid solution. When the single-sided thinning process is required, it is necessary to apply an acid-resistant film to the side that does not need to be thinned. For protection, for example, in order to prevent the touch electrodes of the TSP from being corroded, an acid-resis...

AI Technical Summary

Problems solved by technology

However, even if a layer of acid-resistant film is attached, acid seepage will still occur during the thinning process, resulting in poor corrosion of TSP, resulting in poor contact electrical properties of the product, and affecting the production yield of the product.

[0003] In summary, the single-sided thinning process of the existing technology is prone to acid seepage, which affects the yield of product preparation

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