CN-122028610-A - Display panel and display device

CN122028610ACN 122028610 ACN122028610 ACN 122028610ACN-122028610-A

Abstract

The present disclosure provides a display panel and a display device. In a specific embodiment, the display panel comprises a display area, a non-display area arranged on the periphery of the display area, a driving circuit layer and a light-emitting functional layer which are arranged on a substrate in a laminated mode, wherein the light-emitting functional layer comprises a plurality of light-emitting units, electrodes of the light-emitting units far away from the substrate are reflection electrodes, the non-display area comprises a circuit area arranged on a first side and a second side opposite to the display area, the display panel further comprises a light filtering structure formed by a plurality of filtering sublayers which are arranged in a laminated mode, the light filtering structure is arranged between a thin film transistor of the circuit area and the display area, and refractive indexes of adjacent filtering sublayers are different. The display panel of the embodiment of the disclosure can have higher gate driving reliability.

Inventors

Cui Ronghao
XUAN LIYAN
WANG MING
FANG JINGANG
HE FANG

Assignees

合肥鑫晟光电科技有限公司
京东方科技集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260205

Claims (11)

1. A display panel is characterized by comprising a display area, a non-display area arranged at the periphery of the display area, a driving circuit layer and a luminous functional layer which are arranged on a substrate in a laminated mode, wherein the luminous functional layer comprises a plurality of luminous units, a first electrode of the luminous units far away from the substrate is a reflecting electrode, The non-display area includes a circuit area disposed on opposite first and second sides of the display area, The display panel further comprises a light filtering structure with a plurality of filtering sublayers which are sequentially stacked, wherein the light filtering structure is arranged between the thin film transistor of the circuit area and the display area, and refractive indexes of adjacent filtering sublayers are different.
2. The display panel of claim 1, wherein the circuit region comprises a plurality of thin film transistors, and wherein at least a portion of the active layers of the plurality of thin film transistors are metal oxide semiconductor materials.
3. The display panel of claim 1, wherein the non-display region comprises the circuit region and a redundant region disposed between the circuit region and the display region, The light filtering structure is arranged in the redundant area.
4. The display panel of claim 1, wherein the light filtering structure comprises a plurality of first filtering sub-layers and second filtering sub-layers disposed between the first filtering sub-layers, the second filtering sub-layers being layers of insulating material, the refractive index of a first filtering sub-layer being different from the refractive index of an adjacent second filtering sub-layer, The number of the plurality of first filtering sublayers is odd.
5. The display panel of claim 2, wherein an orthographic projection of the first filter sub-layer onto the substrate at least partially overlaps an orthographic projection of the second filter sub-layer onto the substrate.
6. The display panel of claim 5, wherein the orthographic projection of the plurality of filter sublayers on the substrate base plate comprises a common overlap.
7. The display panel of claim 4, wherein the number of first filter sublayers is 3 or greater.
8. The display panel according to claim 1, wherein the display panel comprises a metal oxide semiconductor layer, a first transparent conductive layer on a side of the metal oxide semiconductor layer close to the substrate, and a second transparent conductive layer on a side of the metal oxide semiconductor layer away from the substrate, The plurality of filtering sublayers includes a first sublayer located on the metal oxide semiconductor layer, a second sublayer located on the first transparent conductive layer, and a third sublayer located on the second transparent conductive layer.
9. The display panel according to claim 8, wherein the light-emitting unit further includes a second electrode located on the second transparent conductive layer near the substrate side with respect to the first electrode, The plurality of filter sublayers further comprises a fourth sublayer arranged on the surface of the third sublayer close to the substrate, the display panel further comprises at least one middle film layer arranged between the film layer where the fourth sublayer is arranged and the second transparent conductive layer, the at least one middle film layer comprises a first opening, The third sub-layer is disposed in the first opening.
10. The display panel of claim 1, wherein the display area further comprises opposing third and fourth sides, An extension range of the light filtering structure in a first direction exceeds a range of an outer boundary of the circuit region in the first direction, and the first direction is a direction from a third side to the fourth side.
11. A display device comprising the display panel of any one of claims 1-10.

Description

Display panel and display device Technical Field The present disclosure relates to the field of display technology. And more particularly, to a display panel and a display device. Background Currently, in high-end display products, organic Light emitting diodes (Organic Light) including oxide thin film transistors are generally usedAn OLED display technology, and a gate driving circuit (GATE DRIVER On Array, GOA) is built in the Array substrate. However, GOA is prone to driving failure, resulting in reliability problems for the display panel. Disclosure of Invention An object of the present disclosure is to provide a display panel and a display device to solve at least one of the problems of the related art. In order to achieve the above purpose, the present disclosure adopts the following technical scheme: the first aspect of the present disclosure provides a display panel including a display region and a non-display region disposed at a periphery of the display region, further including a driving circuit layer and a light emitting functional layer disposed on a substrate in a stacked manner, the light emitting functional layer including a plurality of light emitting units, a first electrode of the light emitting unit remote from the substrate being a reflective electrode, The non-display area includes a circuit area disposed on opposite first and second sides of the display area, The display panel also comprises a light filtering structure with a plurality of filtering sublayers which are sequentially stacked, wherein the light filtering structure is arranged between the thin film transistor of the circuit area and the display area, and the refractive indexes of the adjacent filtering sublayers are different. Optionally, the circuit region includes a plurality of thin film transistors, and at least a portion of the active layers of the plurality of thin film transistors are metal oxide semiconductor materials. Optionally, the non-display region includes a circuit region and a redundant region disposed between the circuit region and the display region, and the light filtering structure is disposed in the redundant region. Optionally, the light filtering structure comprises a plurality of first filtering sublayers and second filtering sublayers arranged among the first filtering sublayers, wherein the second filtering sublayers are insulating material layers, the refractive index of each first filtering sublayer is different from that of the adjacent second filtering sublayers, and the number of the plurality of first filtering sublayers is an odd number. Optionally, the orthographic projection of the first filter sub-layer onto the substrate at least partially overlaps the orthographic projection of the second filter sub-layer onto the substrate. Optionally, the orthographic projection of the plurality of filter sublayers onto the substrate base plate includes a common overlap. Optionally, the number of first filtering sublayers is 3 or more. Optionally, the display panel comprises a metal oxide semiconductor layer, a first transparent conductive layer positioned on one side of the metal oxide semiconductor layer close to the substrate, and a second transparent conductive layer positioned on one side of the metal oxide semiconductor layer far from the substrate, The plurality of filter sublayers includes a first sublayer located on the metal oxide semiconductor layer, a second sublayer located on the first transparent conductive layer, and a third sublayer located on the second transparent conductive layer. Optionally, the light emitting unit further comprises a second electrode positioned on the second transparent conductive layer and close to the substrate side relative to the first electrode; The plurality of filter sublayers further comprise a fourth sublayer arranged on the third sublayer close to the surface of the substrate, the display panel further comprises at least one middle film layer arranged between the film layer where the fourth sublayer is arranged and the second transparent conductive layer, the at least one middle film layer comprises a first opening, and the third sublayer is arranged in the first opening. Optionally, a first transparent conductive layer and a second transparent conductive layer Optionally, the display area further includes a third side and a fourth side opposite to each other, and the light filtering structure extends beyond an outer boundary of the circuit area in the first direction, where the first direction is a direction in which the third side faces the fourth side. A second aspect of the present disclosure provides a display device comprising the display panel described above. The beneficial effects of the present disclosure are as follows: The present disclosure is directed to the current problem, a display panel and a display device are formulated, and a light filtering structure is arranged between a display area of the display panel and a thin film transist