Display screen, display device and preparation method of display screen
A technology of display screen and cathode layer, applied in semiconductor/solid-state device manufacturing, electrical components, electrical solid-state devices, etc., can solve the problems of increasing the light transmittance of the cathode layer, increasing the light diffraction rate, reducing the image effect, etc., so as to reduce the diffraction phenomenon, reduce light loss, improve the effect of image effects
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Embodiment 2
[0083] An embodiment of the present invention also provides a display device, including the display screen in the above embodiment and a photosensitive element located on the back of the display screen, wherein the hollow area 500 in the display screen corresponds to the photosensitive element.
[0084] Wherein, the display device can be applied to smart phones, tablet computers, notebook computers, and mobile terminals with display screens or other terminal devices. Photosensitive devices are cameras, sensors, and other devices with biometric recognition capabilities, which can be used for fingerprint recognition, palmprint recognition or face recognition.
[0085] Since the display device provided in this embodiment includes the display screen described in the above embodiment, the display device also has the same advantages as the above display screen. For details, please refer to related descriptions, which will not be repeated here.
[0086] In this embodiment, the cathod...
Embodiment 3
[0089] Such as Image 6 As shown, a method for preparing a display panel provided by an embodiment of the present invention includes the following steps:
[0090] S100: Provide an array substrate.
[0091]The array substrate 100 is used to carry other components of the display device, and to control current or voltage of other components disposed thereon. The array substrate 100 generally includes a substrate, a TFT array layer on the substrate and a planarization layer covering the TFT array layer.
[0092] S200: forming an anode layer on the array substrate.
[0093] The anode layer is formed on the planar layer of the array substrate by deposition, evaporation or sputtering; the anode layer generally includes a plurality of anode blocks arranged in an array, and each anode block passes through a via hole formed in the planarization layer Connect to source or drain in TFT array layer.
[0094] S300: Form a light emitting layer on the anode layer, the light emitting layer...
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