MATRIX SUBSTRATE AND DISPLAY DEVICE Russian patent published in 2021 - IPC H01L27/32 

FIELD: image displaying.

SUBSTANCE: present invention relates to the field of image display. The matrix substrate contains: subpixels (11), which are located in the display area (B1) and contain a light emitting element, and the light emitting element contains a first electrode, a light emitting layer and a second electrode; positive voltage source cables (12) that are located in the display area (B1) and are electrically connected to the first electrode; the bus (13) of the positive voltage source, which is located in the peripheral area (B2) and is electrically connected to the cables (12) of the positive voltage source; three positive voltage source access terminals (14, 15, 16), which are located on the side of the positive voltage source bus (13) at a distance from the display area (B1) and are respectively electrically connected to the positive voltage source bus (13); negative voltage source cable (17), which is located in the peripheral region (B2); an auxiliary electrode (18), which is located in the peripheral region (B2) and is electrically connected to the negative voltage source cable (17) and the second electrode, respectively; three negative voltage source access terminals (19, 20, 21) that are located on the side of the positive voltage source bus (13) away from the display area (B1) and are respectively electrically connected to the negative voltage source cable (17); and an auxiliary negative voltage source cable (22) that is located in the peripheral region (B2) and is electrically connected to the negative voltage source access terminal (20) and the auxiliary electrode (18), respectively.

EFFECT: uniformity of brightness of images.

17 cl, 10 dwg