Display panel and display device

Abstract

A display panel and a display device, the display panel comprising: a first display region; a second display region, at least partially positioned on one side of the first display region; a plurality of pixel units, the density of pixel units in the first display region being less than the density of pixel units in the second display region, and the pixel units comprising pixel circuits; and first power supply lines, configured to supply a first voltage signal to the pixel circuits. The first power supply lines comprise a plurality of first wires, a plurality of second wires, and a plurality of third wires, the first wires extending from the second display region to the first display region, the plurality of second wires being positioned in the first display region, positioned between adjacent first wires, and extending in a first direction, and the third wires extending along a second direction, the first direction intersecting with the second direction. The third wires extend from the second display region to the first display region, and adjacent second wires are spaced apart in the first direction. The second wires being connected to the first wires by means of the third wires.

What is claimed is: 
     
         1 . A display panel, comprising:
 a first display region;   a second display region, located at least on one side of the first display region;   a plurality of pixel units, located in the first display region and the second display region, a density of pixel units in the first display region being less than that of pixel units in the second display region, and each of the plurality of pixel units comprising a pixel circuit; and   a first power supply line, configured to supply a first voltage signal to the pixel circuit,   wherein the first power supply line comprises a plurality of first conductive lines, a plurality of second conductive lines, and a plurality of third conductive lines, each of the plurality of first conductive lines extends from the second display region to the first display region, each of the plurality of second conductive lines is located in the first display region and located between adjacent ones of the plurality of first conductive lines, each of the plurality of second conductive lines extends in a first direction, each of the plurality of third conductive lines extends in a second direction, and the first direction intersects with the second direction, and   adjacent ones of the plurality of second conductive lines are spaced apart from each other in the second direction, and the second conductive line is connected with the first conductive line by the third conductive line.   
     
     
         2 . The display panel according to  claim 1 , wherein the plurality of second conductive lines are sequentially arranged in the first direction. 
     
     
         3 . The display panel according to  claim 1 , wherein the adjacent ones of the plurality of second conductive lines are not directly connected. 
     
     
         4 . The display panel according to  claim 1 , wherein a length of a part of the first conductive line located in the first display region in the first direction is greater than that of the second conductive line in the first direction. 
     
     
         5 . The display panel according to  claim 1 , wherein the first conductive line comprises parts located in different layers, and the parts located in the different layers are connected through a via hole that penetrates an insulation layer. 
     
     
         6 . The display panel according to  claim 1 , wherein the first power supply line further comprises a fourth conductive line, the fourth conductive line extends in the second direction, the second conductive line is connected to the first conductive line by the fourth conductive line, and a length of the fourth conductive line in the second direction is less than or equal to that of the third conductive line in the second direction. 
     
     
         7 . The display panel according to  claim 1 , wherein a plurality of fourth conductive lines are provided, the plurality of fourth conductive lines are located between adjacent ones of the plurality of third conductive lines, and the plurality of fourth conductive lines are sequentially arranged in the second direction, and adjacent ones of the plurality of fourth conductive lines are spaced apart from each other in the second direction. 
     
     
         8 . The display panel according to  claim 6 , wherein a part of the first conductive line is located in a same layer as the fourth conductive line. 
     
     
         9 . The display panel according to  claim 1 , wherein the pixel units in the first display region constitute a plurality of pixel islands, each of the plurality of pixel islands at least comprises two pixel units located in two adjacent rows, the first conductive line and the second conductive line overlap with the two pixel units located in the two adjacent rows, respectively. 
     
     
         10 . The display panel according to  claim 1 , wherein the first direction is perpendicular to the second direction. 
     
     
         11 . The display panel according to  claim 1 , wherein the first power supply line further comprises a fifth conductive line, the fifth conductive line extends in the first direction, and the fifth conductive line is located in the second display region, and the fifth conductive line and the second conductive line adjacent thereto are spaced apart from each other in the first direction. 
     
     
         12 . The display panel according to  claim 9 , further comprising an initialization signal line configured to supply an initialization signal to the pixel circuit, wherein the second conductive line is surrounded by a part of the initialization signal line. 
     
     
         13 . The display panel according to  claim 12 , wherein the first conductive line comprises a first part and a second part, the first part of the first conductive line is located in a same layer as the second conductive line, and the second part of the first conductive line is not located in a same layer as the second conductive line, and the first part of the first conductive line is surrounded by the part of the initialization signal line. 
     
     
         14 . The display panel according to  claim 9 , further comprising a base substrate and a data line, wherein the data line is configured to supply a data signal to the pixel circuit, and the data line comprises a first data line, wherein the first data line extends from the first display region to the second display region, and an orthographic projection of the first data line partially overlaps with an orthographic projection of the third conductive line on the base substrate. 
     
     
         15 . The display panel according to  claim 14 , wherein the first data line comprises a first part and a second part, and the first part of the first data line partially overlaps with the third conductive line, the second part of the first data line does not overlap with the third conductive line. 
     
     
         16 . The display panel according to  claim 14 , wherein two first data lines are provided, the two first data lines are connected with two adjacent columns of pixel units, respectively, and orthographic projections of the two first data lines partially overlap with an orthographic projection of a same third conductive line on the base substrate. 
     
     
         17 . The display panel according to  claim 14 , further comprising a gate line, wherein the gate line is configured to supply a scan signal to a row of pixel units, the gate line comprises a first gate line, the first gate line extends from the second display region to the first display region, and the light transmission region is defined by two adjacent first gate lines and two adjacent first data lines. 
     
     
         18 . The display panel according to  claim 15 , wherein the first conductive line comprises a first part and a second part, the first part of the first conductive line is located in a same layer as the second conductive line, and the second part of the first conductive line is not located in a same layer as the second conductive line, and the first part of the first conductive line is surrounded by the part of an initialization signal line, the initialization signal line is configured to supply an initialization signal to the pixel circuit, and the second conductive line is surrounded by a part of the initialization signal line. 
     
     
         19 . The display panel according to  claim 18 , wherein the first part of the first conductive line has a first sub-portion extending in the first direction and a second sub-portion extending in the second direction, the second sub-portion has a branch, and the branch extends in the first direction. 
     
     
         20 . A display device, comprising the display panel according to  claim 1  and a sensor, wherein the sensor is located at a side of the display panel and overlaps with the first display region.