JP-2022518308-A5 -

Dates

Publication Date

20221227

Application Date

20191225

Description

This is a top view of one of the display panels related to the technology .This is a top view of a display panel according to several embodiments.Figure 2 shows an enlarged view of the first display subgroup, the second display subgroup, and the corresponding photosensitive means in the display panel.This is another top view of a display panel according to several embodiments.Figure 4 shows an enlarged view of the first virtual subgroup, the second virtual subgroup, and the corresponding photosensitive means in the display panel.Figure 4 shows the spacing between rows and columns of the photosensitive array in the display panel.This is yet another top view of a display panel according to several embodiments.Figure 7 shows enlarged views of each display subgroup and virtual subgroup in the display panel.These are cross-sectional views along the A-A' direction in Figures 2 and 4.This is a cross-sectional view of an OLED display panel according to several embodiments.This is a cross-sectional view in the direction of B-B' in Figure 1.This is a cross-sectional view in the B-B' direction in Figures 2 and 4.This is another cross-sectional view in the B-B' direction in Figures 2 and 4.This is a cross-sectional view of a display device according to several embodiments. Returning to and referring to Figure 1, based on the RGB grid design structure, the photosensitive means of the related technology is designed in such a way that one photosensitive means is provided below the gap between two adjacent subpixels along the row direction X-X'. Figure 1 shows only the photosensitive layer S in each photosensitive means. After adding a photosensitive means to the OLED display panel described above, the gap between two adjacent subpixels is very small (along the row direction X-X', the width of the gap is so small that it is almost negligible compared to the width of each subpixel). The photosensitive layer S requires a certain area to receive light reflected by the edges and valleys of the finger surface. Therefore, when the photosensitive layer S is located below the gap between the R, G, and B subpixels along the row direction X-X' , there is a region where the orthographic projection of the photosensitive layer on the panel surface of the OLED display panel and the orthographic projection of the light-emitting layers of two adjacent subpixels on the panel surface of the OLED display panel inevitably overlap. Light reflected by the edges and valleys of the finger surface passes through the light-emitting layers of the R, G, and B subpixels and irradiates the surface of the photosensitive layer located below the gap between two adjacent subpixels. Here, the panel surface of the OLED display panel can be understood as the display surface of the OLED display panel. In the above design method, each photosensitive means is located below a different R light-emitting layer, G light-emitting layer, and B light-emitting layer. There are three possible positions for the photosensitive means: below the gap between the R subpixel and the G subpixel, below the gap between the G subpixel and the B subpixel, and below the gap between the R subpixel and the B subpixel. Referring back to Figure 9, along the vertical Z-Z' direction of the panel surface of the display panel 01, the overlapping portion between the first subpixel and the photosensitive layer in the photosensitive means (specifically shown in the cross-sectional direction in Figure 9 as the second sub-photosensitive layer S2 and the third sub-photosensitive layer S3 in the photosensitive layer) is specifically the first light-emitting layer 1101 of the first light-emitting element 110 in the first subpixel; the overlapping portion between the second subpixel and the photosensitive layer (specifically shown in the cross-sectional direction in Figure 9 as the first sub-photosensitive layer S1 and the third sub-photosensitive layer S3 in the photosensitive layer) is the second light-emitting layer 1201 of the second light-emitting element 120 in the second subpixel; and the overlapping portion between the third subpixel and the photosensitive layer (specifically shown in the cross-sectional direction in Figure 9 as the first sub-photosensitive layer S1 and the second sub-photosensitive layer S2 in the photosensitive layer) is the third light-emitting layer 1301 of the third light-emitting element 130 in the third subpixel. As shown in Figure 12, the specific structure of the display panel 01 is as follows. The active layer D(a) of the drive transistor D in each subpixel is arranged on the base substrate 200. The gate insulating layer 201 covers the active layer D(a), The gate D(g) of the drive transistor D in each subpixel arranged on the gate insulating layer 201, The first interlayer insulating layer 202 covering the gate D(g) A storage capacitor electrode C1 and the gate T(g) of a switching transistor T are arranged on the first interlayer insulating layer 202, and the two ma