Display device
地域：
Sakai
摘要
A display device includes: a display element provided to a display region; an analysis element provided to a frame region disposed around the display region; and a sealing layer sealing the display element and the analysis element. The display element includes: a TFT layer including a resin film; and a light-emitting element layer including a first electrode, a functional layer, and a second electrode. The analysis element includes: a first metal film formed on the resin film; an analysis layer formed on the first metal film; a second metal film formed to cover at least a portion of an edge of the analysis layer, and electrically connected to the first metal film; and a ground wire electrically connected through the first metal film to the second metal film.
說明書
The disclosure relates to a display device.
- Patent Document 1 discloses a configuration of an inspection element (an analysis element) including an analysis layer and provided to a frame region. The frame region is disposed around a display region provided with a display element. The analysis layer of this inspection element includes a light-emitting layer. When emitting light, the light-emitting layer, formed in a functional layer (the analysis layer) of the display element, is checked from outside how it emits light and inspected for deterioration.
- [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2018-098070 (published on Jun. 21, 2018)
As to the above display device, use of, for example, the secondary ion mass spectrometry (SIMS) is known to inspect for deterioration of the analysis layer formed of a plurality of organic layers including the light-emitting layer.
權利要求
The invention claimed is:1. A display device, comprising:a display element provided in a display region; an analysis element provided in a frame region disposed around the display region; and a sealing layer sealing the display element and the analysis element, the display element including:a thin-film transistor (TFT) layer including a resin film; and a light-emitting element layer including a first electrode, a functional layer, and a second electrode, and the analysis element including:a first analysis electrode formed on the resin film; an analysis layer formed on the first analysis electrode; a second analysis electrode electrically connected to the first analysis electrode; and a ground wire electrically connected through the first analysis electrode to the second analysis electrode, wherein the analysis layer is in direct contact with the first analysis electrode and the second analysis electrode, and the first analysis electrode and the second analysis electrode have a same fixed potential. 2. The display device according to claim 1 , whereinthe analysis layer is formed in the same layer, and of the same material, as the functional layer. 3. The display device according to claim 1 , whereinthe functional layer includes a light-emitting layer, and the analysis layer includes an analysis light-emitting layer corresponding to the light-emitting layer. 4. The display device according claim 1 , whereinthe display element further includes a plurality of sub-pixels having the functional layer that includes a plurality of the light-emitting layers each emitting light in a different color, and the analysis element includes a plurality of analysis sub-pixels each corresponding to one of the plurality of sub-pixels, each of the analysis sub-pixels including a corresponding one of a plurality of analysis light-emitting layers each corresponding to one of the plurality of light-emitting layers. 5. The display device according to claim 1 , whereinthe analysis layer is larger in a plan-view than the functional layer. 6. The display device according to claim 1 , whereinthe first analysis electrode is formed in the same layer, and of the same material, as the first electrode. 7. The display device according to claim 1 , whereinthe first analysis electrode comprises indium tin oxide (ITO). 8. The display device according to claim 1 , whereinthe second analysis electrode is formed in the same layer, and of the same material, as the second electrode. 9. The display device according to claim 1 , whereinthe second analysis electrode comprises silver. 10. The display device according to claim 1 , whereinthe light-emitting element layer further includes an edge cover covering an edge of the first electrode and having an opening to expose the first electrode, and the analysis element is not provided with the edge cover, such that the first analysis electrode is at least partially exposed. 11. The display device according to claim 1 , whereinthe ground wire is formed in the same layer, and of the same material, as the first analysis electrode. 12. The display device according to claim 1 , whereinthe ground wire intersects with and extends out of the sealing layer. 13. The display device according to claim 1 , whereinthe second analysis electrode is formed to cover a whole surface of the analysis layer. 14. The display device according to claim 1 , whereinthe display element further includes a plurality of sub-pixels having the functional layer that includes a plurality of the light-emitting layers each emitting light in a different color, the analysis element includes a plurality of analysis sub-pixels each corresponding to one of the plurality of sub-pixels, each of the analysis sub-pixels including a corresponding one of a plurality of analysis light-emitting layers each corresponding to one of the plurality of light-emitting layers, and the second analysis electrode covers at least one of four side edges of a top or bottom surface of the analysis light-emitting layers of the analysis sub-pixels from a plan-view. 15. The display device according to claim 1 , whereinthe second analysis electrode is formed in the same layer, and of the same material, as the second electrode. 16. The display device according to claim 1 , whereinthe second analysis electrode comprises silver. 17. The display device according to claim 1 , whereinthe second analysis electrode is formed to cover at least a portion of an edge of the analysis layer. 18. The display device according to claim 17 , whereinthe portion of the edge of the analysis layer comprises a front surface of the analysis layer. 19. The display device according to claim 17 , whereinthe second analysis electrode has an aperture that exposes the portion of the edge of the analysis layer. 20. The display device according to claim 1 , whereinthe first analysis electrode and the second analysis electrode are grounded.
意見反饋