Substrate protective film and preparation method thereof, substrate and preparation method of display panels

Abstract

The invention provides a substrate protective film and a preparation method thereof, a substrate and a preparation method of display panels. The substrate comprises multiple panel areas, and multipledisplay panels are formed accordingly, each panel area is provided with a first area, and the first areas correspond to bending areas of the display panels. The substrate protective film comprises thewhole film layer and a hollow part formed in the whole film layer, the size of the whole film layer is matched with the size of the substrate, and the hollow part is used for exposing the first areasof each panel area when a substrate protective film adheres to the substrate. According to the substrate protective film and the preparation method thereof, the substrate and the preparation method of the display panels, not only can adhering efficiency be improved, but also the existence of protective films in the bending areas can be prevented, so that the occurrence of wrinkling can be avoidedwhen a flexible substrate is bent.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a substrate protection film and a manufacturing method thereof, a substrate and a manufacturing method of a display panel. Background technique [0002] With the deepening of OLED technology, full screen technology is becoming a development trend, and in order to realize full screen, Bending (bending) technology is the key technology. [0003] In order to protect the flexible substrate, a protective film is usually attached to the back of the flexible substrate. At present, the large-size flexible substrate is usually cut into multiple small-size display panels, and there are two main ways to attach the protective film. The first way is as figure 1 As shown, a protective film 1 with a small size corresponding to the display panel is used, and the protective film 1 has a hollow portion 11 corresponding to the bending area when the protective film 1 is attached to the dis...

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Problems solved by technology

[0004] However, since the protective films in the above two methods are small in size, they need to be attached to the divided display panels one by one, resulting in more lamination equipment required and low attachment efficiency

Moreover, for the above-mentioned second method, there is also the problem of incomplete removal of the protective film, resulting in wrinkles when the flexible substrate is bent, thereby causing breakage of the wiring

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