Anti-peeping display panel, anti-peeping display device, manufacturing method and using method

Abstract

The invention discloses an anti-peeping display panel, an anti-peeping display device, a manufacturing method and a using method. The anti-peeping display panel comprises a display substrate and a peep-proof device arranged on the light-emitting side of the display substrate, the display substrate comprises a substrate body, a driving circuit layer, an anode, a light-emitting layer, a cathode with a first preset thickness and a light extraction layer with a second preset thickness, the driving circuit layer, the anode, the light-emitting layer, the cathode and the light extraction layer are sequentially stacked on the substrate body, and light emitted from the light extraction layer is quasi-collimation light; the peep-proof device comprises a first film layer with a fixed refractive index and a second film layer with a variable refractive index, the contact surface of the first film layer and the second film layer is of a non-planar structure, and the second film layer changes the refractive index in response to a loaded voltage so that the peep-proof device can directly emit or deflect and emit quasi-collimation light. According to the display panel provided by the embodiment of the invention, the display panel can be adjusted between peep-proof display and wide-viewing-angle display by limiting the thicknesses of the cathode and the light extraction layer and arranging the peep-proof device with the variable refractive index on the light emitting side of the display substrate.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an anti-peep display panel, an anti-peep display device, a manufacturing method and a use method. Background technique [0002] The OLED display device is gradually becoming a mainstream device of a mainstream small and medium-sized display panel. This kind of OLED display device mostly uses an active matrix backplane, and the device structure is composed of a fully reflective anode, a semireflective and translucent cathode, and an organic film interposed therebetween. The fully reflective anode and the semi-reflective cathode together form a microcavity structure, which can enhance the brightness of the front surface of the device and improve the color purity of the front surface. [0003] Anti-peeping display is one of the special requirements of display panels, that is, for frontal observers, the panel display is normal, and for observers outside a certain angle (30°), the b...

AI Technical Summary

Problems solved by technology

On the one hand, the existing anti-peeping displays need to narrow the light output angle through a relatively complex structure. On the other hand, most of them cannot be flexibly adjusted. Applicability is not high

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