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US 10,833,294 B2Granted
Display panel and display device
AssigneeXiamen Tianma Micro-Electronics Co., Ltd.
InventorsChuanli Leng, Jialing Li
Life of this patent
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Abstract
The present disclosure relates to the technical field of display technology, and provides a display panel and a display device for increasing a light transmittance and improving a transparent display effect of the display panel. The display panel includes a display layer having a light-transmitting region and a light-emitting region. The display panel also includes a first light adjustment layer disposed on a first surface of the display layer. With respect to light propagating into the display layer via the first surface, at least one portion of the light, which is directed towards the light-emitting region, is redirected by the first light adjustment layer to pass through the light-transmitting region.
Claims20
A display panel, comprising:
- a display layer comprising a light-transmitting region and a light-emitting region;
- and
- a first light adjustment layer disposed on a first surface of the display layer,
- wherein the light-emitting region comprises a first edge portion and a first center portion, wherein a distance between the first edge portion and the light-transmitting region is smaller than a distance between the first center portion and the light-transmitting region,
- wherein the first light adjustment layer overlaps the light-emitting region and the light-transmitting region, a portion of the first light adjustment layer overlapping the light-emitting region and a portion of the first light adjustment layer overlapping the light-transmitting region have an identical refractive index, and a thickness of the first light adjustment layer decreases with an increase in its distance from a center of the light-transmitting region, so that with respect to light propagating into the display layer via the first surface, at least one portion of the light, which is directed towards the light-emitting region, is redirected by the first light adjustment layer to pass through the light-transmitting region;
- and with respect to light propagating to the first light adjustment layer in a direction perpendicular to a plane of the display panel, a portion of the light propagating toward the first edge portion is redirected by the first light adjustment layer to a smaller extent than a portion of the light propagating toward the first center portion,
- wherein the thickness of the first light adjustment layer is a thickness in a direction perpendicular to the display panel.
4 more elements
A display panel comprising:
- a display layer comprising a light-transmitting region and a light-emitting region;
- and
- a first light adjustment layer disposed on a first surface of the display layer,
- wherein the light-emitting region comprises a first edge portion and a first center portion, wherein a distance between the first edge portion and the light-transmitting region is smaller than a distance between the first center portion and the light-transmitting region,
- wherein the first light adjustment layer overlaps the light-emitting region and the light-transmitting region,
- a portion of the first light adjustment layer overlapping the light-emitting region and a portion of the first light adjustment layer overlapping the light-transmitting region have an identical thickness, and
- the first light adjustment layer has a refractive index decreasing with an increase in its distance from a center of the light-transmitting region so that with respect to light propagating into the display layer via the first surface, at least one portion of the light, which is directed towards the light-emitting region, is redirected by the first light adjustment layer to pass through the light-transmitting region;
- and with respect to light propagating to the first light adjustment layer in a direction perpendicular to a plane of the display panel, a portion of the light propagating toward the first edge portion is redirected by the first light adjustment layer to a smaller extent than a portion of the light propagating toward the first center portion.
5 more elements
A display device, comprising a display panel, the display panel comprising:
- a display layer comprising a light-transmitting region and a light-emitting region;
- and
- a first light adjustment layer disposed on a first surface of the display layer,
- wherein the light-emitting region comprises a first edge portion and a first center portion, wherein a distance between the first edge portion and the light-transmitting region is smaller than a distance between the first center portion and the light-transmitting region,
- wherein the first light adjustment layer overlaps the light-emitting region and the light-transmitting region, a portion of the first light adjustment layer overlapping the light-emitting region and a portion of the first light adjustment layer overlapping the light-transmitting region have an identical refractive index, and a thickness of the first light adjustment layer decreases with an increase in its distance from a center of the light-transmitting region, so that with respect to light propagating into the display layer via the first surface, at least one portion of the light, which is directed towards the light-emitting region, is redirected by the first light adjustment layer to pass through the light-transmitting region;
- and with respect to light propagating to the first light adjustment layer in a direction perpendicular to a plane of the display panel, a portion of the light propagating toward the first edge portion is redirected by the first light adjustment layer to a smaller extent than a portion of the light propagating toward the first center portion,
- wherein the thickness of the first light adjustment layer is a thickness in a direction perpendicular to the display panel.
4 more elements
Dependencies are inferred from the claim text.