Display screens and electronic devices

Abstract

A display screen and an electronic device are disclosed. The display screen has a first display region and a second display region. The display screen includes an anode layer, a pixel defining layer disposed on the anode layer, a number of isolation pillars disposed on the pixel defining layer, and a driving layer group. The pixel defining layer and the isolation pillars form a sub-pixel isolation structure, and the isolation pillars, the pixel defining layer, the driving layer group, and the anode layer are disposed in the first display region and the second display region. The second display region has a vacant region corresponding to a region forming the isolation pillar and without the isolation pillar formed therein, and the pixel defining layer is provided with an opening under the vacant region.

1 . A display screen having a first display region and a second display region, comprising:
 an anode layer;   a pixel defining layer disposed on the anode layer;   a plurality of isolation pillars disposed on the pixel defining layer; and   a driving layer group;   wherein the pixel defining layer and the isolation pillars form a sub-pixel isolation structure, and the isolation pillars, the pixel defining layer, the driving layer group, and the anode layer are disposed in the first display region and the second display region; the second display region has a vacant region corresponding to a region forming the isolation pillar and without the isolation pillar formed therein, and the pixel defining layer is provided with an opening under the vacant region.   
     
     
         2 . The display screen of  claim 1 , wherein
 a plurality of surface plasmon resonance structures are disposed in the driving layer group corresponding to a region of the opening, and the surface plasmon resonance structures comprise a plurality of metal prisms spaced apart from each other;   or a plurality of metal spirals are disposed in the anode layer corresponding to the region of the opening, to form the surface plasmon resonance structures.   
     
     
         3 . The display screen of  claim 2 , wherein the metal spirals have a width of 150 nm to 400 nm. 
     
     
         4 . The display screen of  claim 2 , wherein the metal spirals are two-dimensional spirals. 
     
     
         5 . The display screen of  claim 2  wherein the metal spirals are Archimedes spirals. 
     
     
         6 . The display screen of  claim 2 , wherein a planarization layer is disposed under the anode layer, and the planarization layer is provided with a through hole; and the through hole corresponds to a central region of the metal spirals. 
     
     
         7 . The display screen of  claim 6 , wherein a radius of the through hole is 20 nm to 150 nm. 
     
     
         8 . The display screen of  claim 2 , wherein the metal prisms are close to each other. 
     
     
         9 . The display screen of  claim 8 , wherein the metal prisms have trapezoidal cross sections. 
     
     
         10 . The display screen of  claim 9 , wherein the number of the metal prisms is four, and lower bottoms of the trapezoidal cross sections of the four metal prisms are inwardly and centrally symmetrically distributed. 
     
     
         11 . The display screen of  claim 8 , wherein a gap between adjacent metal prisms is 20 nm to 50 nm. 
     
     
         12 . The display screen of  claim 2 , wherein the metal prisms have a thickness of 20 nm to 150 nm. 
     
     
         13 . The display screen of  claim 1 , wherein the opening is square. 
     
     
         14 . The display screen of  claim 1 , wherein a plurality of vacant regions are provided, and the vacant regions are arranged uniformly. 
     
     
         15 . The display screen of  claim 1 , wherein a plurality of vacant regions are provided, and the vacant regions are arranged at an interval. 
     
     
         16 . The display screen of  claim 1 , wherein the display screen is an OLED display screen; the OLED display screen comprises an OLED device, and the OLED device comprises a cathode layer, a sub-pixel light emitting structure, the anode a layer, the pixel defining layer, and the isolation pillars; the anode layer and the cathode layer are disposed oppositely, the sub-pixel light emitting structure, the pixel defining layer, and the isolation pillars are disposed between the anode layer and the cathode layer; the pixel defining layer is disposed on the anode layer, and the isolation pillars are disposed on the pixel defining layer. 
     
     
         17 . The display screen of  claim 1 , wherein the driving layer group comprises a base layer, a buffer layer located on the base layer, a semiconductor silicon layer formed on the buffer layer, a gate insulating layer covering on the semiconductor silicon layer, a first metal layer formed on the gate insulating layer, a dielectric layer covering the first metal layer, a second metal layer formed on the dielectric layer, two interlayer insulating layers covering on the second metal layer, and a third metal layer formed on the interlayer insulating layers. 
     
     
         18 . The display screen of  claim 17 , wherein the plasmon resonance structures provided in the driving layer group are provided in the second metal layer. 
     
     
         19 . An electronic device, comprising:
 a display screen having a first display region and a second display region; the display screen comprising a plurality of isolation pillars, a pixel defining layer, a driving layer group and an anode layer; the isolation pillars, the pixel defining layer, the driving layer group and the anode layer being disposed in the first display region and the second display region;   the second display region has a vacant region corresponding to a region forming the isolation pillar and without the isolation pillar formed therein, and the pixel defining layer is provided with an opening under the vacant region;   a plurality of surface plasmon resonance structures being disposed in the driving layer group corresponding to a region of the opening; the surface plasmon resonance structures comprising a plurality of metal prisms spaced apart;   or a plurality of metal spirals being disposed in the anode layer corresponding to the region of the opening, to form the surface plasmon resonance structures; and   an under-screen photosensitive module being disposed corresponding to the second display region and being capable of sensing light that is incident through the display screen.   
     
     
         20 . The electronic device of  claim 19 , wherein the under-screen photosensitive module is at least one of a photosensor and a camera.