FIELD OF THE INVENTION

The present invention relates to a display technology field, and more particularly to a display panel and a display device.

BACKGROUND OF THE INVENTION

In the field of display technology, OLED (Organic Light-emitting Diode) displays are widely used because of properties of light weight, self-illumination, wide view angle and quick response.

In the OLED display, in order to strictly eliminate the erosion of the external water vapor, a thin film encapsulation method is generally adopted, that is, a thin film encapsulation layer is provided. Due to the ductility during the formation of the thin film encapsulation layer, in order to avoid an increase of the ineffective area around the OLED device caused by the extension of the thin film encapsulation layer, as shown inFIG. 1, two circles of barrier pillars22may be disposed around the organic light emitting device21. However, the encapsulation film23located on the left side of the barrier pillar22is easily collapsed and broken due to a large slop, which causes intrusion of water vapor and damages the OLED panel2.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a display panel and a display device which can prevent intrusion of moisture and can improve a yield of the display panel.

The embodiment of the present invention provides a display panel, including:

a substrate;

an organic light emitting device, disposed on the substrate;

a plurality of barrier pillars, wherein the plurality of barrier pillars are disposed on the substrate, and the plurality of barrier pillars are disposed around the organic light emitting device;

a water absorbing layer, wherein the water absorbing layer is disposed on the substrate, and the water absorbing layer is disposed around the plurality of barrier pillars; and

a thin film encapsulation layer, disposed on the organic light emitting device, the substrate, the plurality of barrier pillars and the water absorbing layer.

In some embodiments, the plurality of barrier pillars are two circles of barrier pillars disposed around the organic light emitting device; and

the water absorbing layer is disposed between the two circles of barrier pillars, or the water absorbing layer is disposed around the two circles of barrier pillars.

In some embodiments, a height of the barrier pillars adjacent to an edge region of the display panel is smaller than a height of the barrier pillars away from the edge region of the display panel.

In some embodiments, the barrier pillars include a body and a water absorbing film layer disposed on the body.

In some embodiments, constituent materials of the water absorbing layer include an organic water absorbing material and/or an inorganic water absorbing material.

In some embodiments, the inorganic water absorbing material includes calcium carbonate, and the organic water absorbing material includes a resin and/or an acrylate.

In some embodiments, constituent materials of the water absorbing layer include an epoxy resin, an acrylic resin and a curing agent.

In some embodiments, a height of the water absorbing layer is less than heights of the barrier pillars.

In some embodiments, the height of the water absorbing layer ranges from 0.1 micron to 0.3 micron.

In some embodiments, the thin film encapsulation layer includes:

a first thin film encapsulation layer, disposed on the substrate, the organic light emitting device and the barrier pillars;

a second thin film encapsulation layer, disposed on the first thin film encapsulation layer, wherein the second thin film encapsulation layer is also disposed on a side of the barrier pillars adjacent to the organic light emitting device; and

a third thin film encapsulation layer, disposed on the first thin film encapsulation layer, the second thin film encapsulation layer and the water absorbing layer.

The embodiment of the present invention further provides a display device, including a display panel;

wherein the display panel includes:

a substrate;

an organic light emitting device, disposed on the substrate;

a plurality of barrier pillars, wherein the plurality of barrier pillars are disposed on the substrate, and the plurality of barrier pillars are disposed around the organic light emitting device;

a water absorbing layer, wherein the water absorbing layer is disposed on the substrate, and the water absorbing layer is disposed around the plurality of barrier pillars; and

a thin film encapsulation layer, disposed on the organic light emitting device, the substrate, the plurality of barrier pillars and the water absorbing layer.

In some embodiments, the plurality of barrier pillars are two circles of barrier pillars disposed around the organic light emitting device; and

the water absorbing layer is disposed between the two circles of barrier pillars, or the water absorbing layer is disposed around the two circles of barrier pillars.

In some embodiments, a height of the barrier pillars adjacent to an edge region of the display panel is smaller than a height of the barrier pillars away from the edge region of the display panel.

In some embodiments, the barrier pillars include a body and a water absorbing film layer disposed on the body.

In some embodiments, constituent materials of the water absorbing layer include an organic water absorbing material and/or an inorganic water absorbing material.

In some embodiments, the inorganic water absorbing material includes calcium carbonate, and the organic water absorbing material includes a resin and/or an acrylate.

In some embodiments, constituent materials of the water absorbing layer include an epoxy resin, an acrylic resin and a curing agent.

In some embodiments, a height of the water absorbing layer is less than heights of the barrier pillars.

In some embodiments, the height of the water absorbing layer ranges from 0.1 micron to 0.3 micron.

In some embodiments, the thin film encapsulation layer includes:

a first thin film encapsulation layer, disposed on the substrate, the organic light emitting device and the barrier pillars;

a second thin film encapsulation layer, disposed on the first thin film encapsulation layer, wherein the second thin film encapsulation layer is also disposed on a side of the barrier pillars adjacent to the organic light emitting device; and

a third thin film encapsulation layer, disposed on the first thin film encapsulation layer, the second thin film encapsulation layer and the water absorbing layer.

Compared with the display panel and the display device of the prior art, the display panel and the display device of the present invention can absorb external water vapor when the thin film encapsulation layer is broken by providing the water absorbing layer, thereby improving the yield of the display panel.

