In addition, as shown in FIG. 4, in a direction perpendicular to the first extension direction Dir1, the first electrode 1511 of the first pixel unit Px1 corresponding to the first outline 2631 has a fifth width W5, the first electrode 1511 has a sixth width W6 between the first outline 2631 and the second outline 1611, and the sixth width W6 is greater than the fifth width W5. In this case, the width of the first electrode 1511 is gradually increased from the first outline 2631 to the second outline 1611. Thus, the heat generated at the first electrode 1511 between the first outline 2631 and the second outline 1611 can be decreased. In another embodiment of the present disclosure, the first electrode 1511 of the first pixel unit Px1 corresponding to the second outline 1611 has a seventh width W7 in the direction perpendicular to the first extension direction Dir1, and the seventh width W7 is greater than the sixth width W6.
Embodiments 2 and 3
FIG. 6 and FIG. 7 are respectively top views showing a part of a display region of an OLED display device of Embodiments 2 and 3, wherein FIG. 6 and FIG. 7 are respectively a normal direction view of the first substrate shown in FIG. 2. Herein, the structure of the OLED display devices of Embodiments 2 and 3 are similar to that of Embodiment 1, except the shapes and the positions of the first electrode, the light emitting regions and the via holes.
