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CN-224234113-U - Display panel and display device

CN224234113UCN 224234113 UCN224234113 UCN 224234113UCN-224234113-U

Abstract

The application provides a display panel and a display device, wherein the display panel comprises a display area and a non-display area arranged at the periphery of the display area, the non-display area comprises a virtual pixel area arranged adjacent to the display area, the display panel further comprises a light-emitting layer, the light-emitting layer comprises a plurality of light-emitting parts and a plurality of virtual light-emitting parts, the thickness of the virtual light-emitting parts of the virtual pixel area is smaller than that of the light-emitting parts of the display area, and the difference between the saturated vapor pressure at the edge of the display area and the saturated vapor pressure in the middle of the display area in the drying process is reduced, so that the difference between the light-emitting parts at the edge of the display area and the thickness of the light-emitting parts in the middle of the display area can be reduced, the brightness uniformity of the display panel can be improved, and the process yield of the display panel is further improved.

Inventors

  • FAN YINGCHUN

Assignees

  • 武汉华星光电技术有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (10)

  1. 1. A display panel comprising a display region and a non-display region disposed at a periphery of the display region, the non-display region comprising a virtual pixel region disposed adjacent to the display region, the display panel further comprising: A light emitting layer including a plurality of light emitting parts and a plurality of virtual light emitting parts, the light emitting parts being disposed in the display region, the virtual light emitting parts being disposed in the virtual pixel region; Wherein the thickness of the virtual light emitting part is smaller than the thickness of the light emitting part.
  2. 2. The display panel of claim 1, wherein a thickness of the virtual light emitting portion near the display area is less than a thickness of the virtual light emitting portion far from the display area.
  3. 3. The display panel according to claim 2, wherein a thickness of the plurality of virtual light emitting portions gradually increases in a direction in which the display area is directed toward the virtual pixel area.
  4. 4. The display panel according to claim 2, wherein a ratio of a thickness of the dummy light emitting portion nearest to the display region to a thickness of the light emitting portion is greater than or equal to 0.2 and less than or equal to 0.4, and/or The ratio of the thickness of the virtual light emitting portion farthest from the display area to the thickness of the light emitting portion is greater than or equal to 0.7 and less than or equal to 0.9.
  5. 5. The display panel of claim 2, wherein the virtual pixel area comprises at least two sub-virtual pixel areas, wherein one of the sub-virtual pixel areas is disposed on a side of the other sub-virtual pixel area away from the display area; The thickness of the virtual light emitting part of the sub-virtual pixel area which is closer to the display area is smaller than that of the virtual light emitting part of the sub-virtual pixel area which is farther from the display area.
  6. 6. The display panel according to any one of claims 1 to 5, wherein the flatness of the dummy light emitting portion is smaller than the flatness of the light emitting portion.
  7. 7. The display panel of claim 6, wherein the flatness of the virtual light emitting portion near the display area is less than the flatness of the virtual light emitting portion far from the display area.
  8. 8. The display panel according to claim 6, wherein a flatness of the plurality of virtual light emitting portions gradually increases in a direction in which the display area is directed toward the virtual pixel area.
  9. 9. The display panel of any one of claims 1 to 5, further comprising: The first dykes are arranged in the display area to form a plurality of first openings in a surrounding mode, and the light-emitting parts are arranged in the first openings; The plurality of second dams are arranged in the virtual pixel area to form a plurality of second openings in a surrounding mode, and the virtual light emitting part is arranged in the second openings; wherein the height of the first dykes and dams is less than or equal to the height of the second dykes and dams.
  10. 10. A display device comprising the display panel according to any one of claims 1 to 9.

Description

Display panel and display device Technical Field The present application relates to the field of display technologies, and in particular, to a display panel and a display device. Background The organic light emitting diode display technology has the characteristics of self-luminescence, wide viewing angle, high contrast, high response speed, light weight, thin profile and the like, and has become a main trend of the display technology. Compared with the method for manufacturing the organic light-emitting diode device by adopting a fine metal mask and vacuum evaporation, the ink-jet printing technology has the advantages that the fine metal mask is not needed due to accurate alignment, the material utilization rate can reach 95 percent, and the ink-jet printing technology is paid attention to, so that the ink-jet printing technology becomes the main trend of manufacturing the large-size organic light-emitting diode device in the future. The raw material for inkjet printing is liquid, and a solid film is formed by vacuum decompression drying. In the drying process, the saturated vapor pressure at the edge of the display area is different from the saturated vapor pressure in the middle of the display area, so that the drying effect at the edge of the display area is different from the drying effect in the middle of the display area, the thickness of the luminescent layer at the edge of the display area is different from the thickness of the luminescent layer in the middle of the display area, the edge of a display picture is different from the brightness in the middle of the display area, and the product yield is influenced. Therefore, it is necessary to provide a display panel and a display device to improve the defect. Disclosure of utility model The embodiment of the application provides a display panel and a display device, which can improve the brightness uniformity of the display panel. In order to achieve the above object, according to a first aspect of the present application, there is provided a display panel including a display area and a non-display area disposed at a periphery of the display area, the non-display area including a virtual pixel area disposed adjacent to the display area, the display panel further including: A light emitting layer including a plurality of light emitting parts and a plurality of virtual light emitting parts, the light emitting parts being disposed in the display region, the virtual light emitting parts being disposed in the virtual pixel region; Wherein the thickness of the virtual light emitting part is smaller than the thickness of the light emitting part. Optionally, the thickness of the virtual light emitting part near the display area is smaller than the thickness of the virtual light emitting part far from the display area. Alternatively, the thickness of the plurality of virtual light emitting parts is gradually increased in a direction in which the display area points to the virtual pixel area. Optionally, the ratio of the thickness of the virtual light emitting part nearest to the display area to the thickness of the light emitting part is greater than or equal to 0.2 and less than or equal to 0.4, and/or The ratio of the thickness of the virtual light emitting portion farthest from the display area to the thickness of the light emitting portion is greater than or equal to 0.7 and less than or equal to 0.9. Optionally, the virtual pixel area includes at least two sub-virtual pixel areas, wherein one sub-virtual pixel area is disposed at a side of the other sub-virtual pixel area away from the display area; The thickness of the virtual light emitting part of the sub-virtual pixel area which is closer to the display area is smaller than that of the virtual light emitting part of the sub-virtual pixel area which is farther from the display area. Alternatively, the flatness of the dummy light emitting portion is smaller than the flatness of the light emitting portion. Alternatively, the flatness of the virtual light emitting part near the display area is smaller than that of the virtual light emitting part far from the display area. Alternatively, the flatness of the plurality of virtual light emitting parts gradually increases in a direction in which the display area points to the virtual pixel area Optionally, the display panel further includes: The first dykes are arranged in the display area to form a plurality of first openings in a surrounding mode, and the light-emitting parts are arranged in the first openings; The plurality of second dams are arranged in the virtual pixel area to form a plurality of second openings in a surrounding mode, and the virtual light emitting part is arranged in the second openings; wherein the height of the first dykes and dams is less than or equal to the height of the second dykes and dams. According to a second aspect of the present application, there is provided a display device comprising a display panel as described above