OLED display panel and manufacturing method thereof
View Patent ↗An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1 . A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2 . Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3 a.
1. An OLED display panel comprising:
a substrate;
a wire over the substrate;
a layer of insulating material over the wire;
a display area including a plurality of OLED elements over the substrate; and
a low resistance metal film over the layer of insulating material and extending along an exterior edge of the display area, the low resistance metal film conducting with a transparent electrode of each OLED element,
wherein the low resistance metal film conducts with the wire via a contact passing through the layer of insulating material.
2. The OLED display panel according to claim 1 , wherein the transparent electrode is common to all OLED elements.
3. The OLED display panel according to claim 1 , wherein the low resistance metal film comprises aluminum or silver.
4. The OLED display panel according to claim 1 , wherein the low resistance metal film is divided into a plurality of films.
5. The OLED display panel according to claim 1 , wherein a plane shape of the display area is rectangular and the low resistance metal film is located at least along a pair of long edges and one short edge of the display area.
6. The OLED display panel according to claim 5 , wherein a hook shaped low resistance metal film is further located at four corners of the display area.
7. The OLED display panel according to claim 4 , wherein the low resistance metal film is divided at four corners of the display area.
8. The OLED display panel according to claim 4 , wherein one of the plurality of films conducts with the wire via the contact.
9. The OLED display panel according to claim 1 , wherein the low resistance metal film conducts with the wire through an indium tin oxide layer.