OLED display panel and OLED display device

Abstract

The invention discloses an OLED display panel and an OLED display device. The OLED display panel is respectively configured with a first power bus and a second power bus, first sub-pixels of a centraldisplay area are enabled to be electrically connected to the first power bus and obtain first driving voltage from the first power bus, and second sub-pixels of a transitional display area are enabled to be electrically connected to the second power bus and obtain second driving voltage from the second power bus; and the area of the second sub-pixels is less than the area of the first sub-pixels,and the second driving voltage provided by the second power bus is higher than the first driving voltage provided by the first power bus, thereby being capable of compensating the brightness difference between the first sub-pixels and the second sub-pixels, thus enabling the brightness of the whole special-shaped display area to keep in balance, and avoiding a visual saw-tooth phenomenon caused by the brightness difference of different areas.

Description

technical field [0001] The invention relates to the technical field of organic light emitting diodes, in particular to an OLED display panel and an OLED display device. Background technique [0002] In the prior art, the display area of ​​the OLED display panel is mostly rectangular, so the sub-pixels of the OLED display panel are all designed to be rectangular. However, in the OLED special-shaped display panel, since the contour line used to define the peripheral outline of the OLED display panel often includes Arc, when it is necessary to arrange the sub-pixels along the outline of the display panel to form a special-shaped display area, such as figure 1 As shown, the rectangular sub-pixels 3 cannot completely coincide with the contour line, resulting in a stepped area 30a formed on the outer peripheral contours of adjacent rows and columns with different numbers of sub-pixels, thereby forming a visual jagged phenomenon. [0003] Generally, references such as figure 1 An...

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Problems solved by technology

[0004] However, if the special-shaped display panel is driven by a driving circuit in the prior art, the sub-pixels in the central display area 30 and the transitional display area 40 are all driven by the same power bus, and the rectangular sub-pixels 3 in the central display area 30 It is the same as the driving voltage of the special-shaped sub-pixel 4 in the transitional display area 40, but since the area of ​​the special-shaped sub-pixel 4 in the transitional display area 40 is different from the area of ​​the sub-pixel 3 in the central display area 30, the The luminous intensity of the special-shaped sub-pixel 4 in the transitional display area 40 is different from that of the rectangular sub-pixel 3 in the central display area 30, for example: when the area of ​​the special-shaped sub-pixel 4 is smaller than the area of ​​the rectangular sub-pixel 3, in the same Driven by the driving voltage, the luminance of the special-shaped sub-pixel 4 will be smaller than the luminance of the rectangular sub-pixel. Therefore, using this kind of scheme in the prior art, the luminance difference in different regions will still produce a certain visual difference. sawtooth phenomenon

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