Display panel and display device

Abstract

The application relates to the display field and discloses a display panel and a display device, which have a substrate, a pixel definition layer, a light-emitting device and a touch structure layer; the pixel definition layer and the light-emitting device are located on the same side of the substrate; the pixel definition layer has a plurality of openings, and the light-emitting device comprises a first light-emitting layer; the orthographic projection of a metal grid line on the substrate is located in the orthographic projection of the pixel definition layer on the substrate; along a direction perpendicular to the extending direction of the metal grid line and parallel to the substrate, the distance between the two side edges of the orthographic projection of each metal grid line on the substrate and the edges of the orthographic projection of the pixel definition layer on the substrate is a first interval d; along a direction perpendicular to the substrate, the distance between the surface of the metal grid line facing the substrate and the surface of the pixel definition layer away from the substrate is a second interval h; d and h satisfy the following relationship: theta >= 35 DEG; and the display effect of the display panel is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] Limited by the product demand of flexible folding, narrow frame and the like, a touch structure layer of an OLED (Organic Light-Emitting Diode) adopts a flexible multi-layer on cell (FMLOC) structure form, and the flexible touch structure layer is arranged on an encapsulation layer of an OLED backplane. The flexible multi-layer on cell design is currently mainstream in the field of OLED touch display, and is the main process direction in the mobile phone screen industry. Based on the consideration of reducing resistance and improving sensitivity, a metal mesh form is adopted in the touch structure layer to realize touch control. SUMMARY

[0003] The present application discloses a display panel and a display device, which are used to improve the display effect of the display panel.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions.

[0005] In a first aspect, the present application provides a display panel, comprising: a substrate base plate, a pixel definition layer, a light emitting device and a touch structure layer.

[0006] The pixel definition layer and the light emitting device are located on the same side of the substrate base plate; wherein the pixel definition layer has a plurality of openings, and the light emitting device comprises a first light emitting layer located in the openings.

[0007] The touch structure layer is located on the side of the light emitting device away from the substrate base plate, and the touch structure layer comprises a metal mesh line, and the orthographic projection of the metal mesh line on the substrate base plate is located in the orthographic projection of the pixel definition layer on the substrate base plate; wherein each metal mesh line and the pixel definition layer whose orthographic projection is covered by the orthographic projection of the metal mesh line:

[0008] In a direction perpendicular to the extension direction of the metal mesh line and parallel to the substrate base plate, the distance between the two side edges of the orthographic projection of each metal mesh line on the substrate base plate and the edges of the orthographic projection of the pixel definition layer on the substrate base plate is a first distance d;

[0009] In a direction perpendicular to the substrate base plate, the distance between the surface of the metal mesh line facing the substrate base plate and the surface of the pixel definition layer away from the substrate base plate is a second distance h;

[0010] The relationship between d and h satisfies the following relationship: θ≥35°.

[0011] The display panel provided by the application comprises a substrate, a pixel definition layer arranged on one side of the substrate, a plurality of openings in the pixel definition layer, and a first light-emitting layer in the light-emitting device arranged in the openings. When light emitted by the first light-emitting layer is emitted towards the pixel definition layer away from the substrate side and towards the touch structure layer, the light emitted by the first light-emitting layer cannot be emitted from the metal grid lines due to the shielding effect of the metal grid lines, thereby causing display unevenness during display. Here, the positional relationship between the metal grid lines and the first light-emitting layer is adjusted and designed as follows: along a direction perpendicular to the extension direction of the metal grid lines and parallel to the substrate, the distance between the two side edges of the orthographic projection of each metal grid line on the substrate and the edges of the orthographic projection of the pixel definition layer on the substrate is a first distance d; along a direction perpendicular to the substrate, the distance between the surface of the metal grid line towards the substrate and the surface of the pixel definition layer away from the substrate is a second distance h; d and h satisfy the following relationship: θ≥35°. When d and h satisfy the above relationship, the incident angle of the light emitted from the first light-emitting layer to the metal grid lines is θ. If θ is greater than or equal to the critical angle, when the light enters a medium with a lower refractive index from a medium with a higher refractive index, if the incident angle is greater than a certain critical angle θc (the light is far away from the normal line), the refracted light will disappear, and all incident light will be reflected without entering the medium with a lower refractive index. Among the light emitted from the first light-emitting layer and incident on the metal grid lines, the light with an incident angle greater than the critical angle will not be emitted, thereby causing total internal reflection. Therefore, during bright screen display, the metal grid lines will not cause display problems. It is ensured that the light emitted by the first light-emitting layer will not cause display unevenness due to the shielding of the metal grid lines formed by the metal grid lines.

[0012] Optionally, the metal grid lines form touch electrodes in the touch structure layer, and the touch electrodes comprise a plurality of first electrodes and a plurality of second electrodes.

[0013] The first distance corresponding to each first electrode is d1, and the second distance is h1; d1 and h1 satisfy the following relationship: θ1≥35°;

[0014] The first distance corresponding to each second electrode is d2, and the second distance is h2; d2 and h2 satisfy the following relationship: θ2≥35°.

[0015] Optionally, the first distance d1 corresponding to each first electrode is greater than or equal to 9 μm; and the first distance d2 corresponding to each second electrode is greater than or equal to 9 μm.

[0016] Optionally, the first intervals d1 corresponding to the first electrodes are equal; the first intervals d2 corresponding to the second electrodes are equal.

[0017] Optionally, the first intervals d1 corresponding to the first electrodes are equal to the first intervals d2 corresponding to the second electrodes.

[0018] Optionally, the first electrodes and the second electrodes are arranged in the same layer, and the second intervals h1 corresponding to the first electrodes are equal to the second intervals h2 corresponding to the second electrodes.

[0019] Optionally, the first electrodes and the second electrodes are arranged in different layers.

[0020] The second intervals h1 corresponding to the first electrodes are not equal to the second intervals h2 corresponding to the second electrodes.

[0021] Optionally, the second intervals h1 corresponding to the first electrodes are 10-13 μm.

[0022] The second intervals h2 corresponding to the second electrodes are 10-13 μm.

[0023] Optionally, the second intervals h1 corresponding to the first electrodes are 11.5 μm; the second intervals h2 corresponding to the second electrodes are 11.5 μm.

[0024] Optionally, the second intervals h1 corresponding to the first electrodes are 10-12 μm.

[0025] The second intervals h2 corresponding to the second electrodes are 11-13 μm.

[0026] Optionally, the second intervals h1 corresponding to the first electrodes are 11 μm; the second intervals h2 corresponding to the second electrodes are 12 μm.

[0027] Optionally, in a direction perpendicular to the extending direction of the first electrodes and parallel to the substrate, the line width of the first electrodes is 2.5-4.5 μm, and / or,

[0028] In a direction perpendicular to the extending direction of the second electrodes and parallel to the substrate, the line width of the second electrodes is 2.5-4.5 μm.

[0029] Optionally, a packaging layer is formed between the pixel defining layer and the touch structure layer, and the refractive index of the packaging layer ranges from 1.5 to 1.6.

[0030] Optionally, the light emitting device further comprises a second light emitting layer, the second light emitting layer is located on the side of the pixel defining layer away from the substrate base, and the orthographic projection of the second light emitting layer on the substrate base is located within the orthographic projection of the pixel defining layer on the substrate base.

[0031] In a second aspect, the present application provides a display device comprising the display panel of any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A cross-sectional view of the positional relationship between the light emitting device in the pixel defining layer and the metal grid line in the touch structure layer is provided for an embodiment of the present application.

[0033] Figure 2 A cross-sectional view of the light emitting device in the pixel defining layer is provided for an embodiment of the present application.

[0034] Figure 3 A top view of the positional relationship between the light emitting device in the pixel defining layer and the metal grid line in the touch structure layer is provided for an embodiment of the present application.

[0035] Figure 4 An effect diagram of total internal reflection of light emitted by the light emitting device layer is provided for an embodiment of the present application.

[0036] Figure 5 An effect diagram of no total internal reflection of the light emitting device is provided for an embodiment of the present application.

[0037] Figure 6 A structural diagram of the metal grid line and the pixel defining layer is provided for an embodiment of the present application.

[0038] Figure 7 Another structural diagram of the metal grid line and the pixel defining layer is provided for an embodiment of the present application.

[0039] Figure 8 An opening shape diagram in the pixel defining layer is provided for an embodiment of the present application.

[0040] Figure 9 Another opening shape diagram in the pixel defining layer is provided for an embodiment of the present application.

[0041] Figure 10 Another opening shape diagram in the pixel defining layer is provided for an embodiment of the present application.

[0042] Icon: 100 - substrate substrate; 200 - pixel definition layer; 210 - opening; 220 - light emitting device; 221 - first light emitting layer; 222 - second light emitting layer; 223 - cathode; 224 - anode; 300 - encapsulation layer; 400 - touch structure layer; 410 - first electrode; 420 - second electrode. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] Due to the existence of the metal grid in the touch structure layer, when the display device is in bright screen display, the metal grid will have a shielding effect, and the problem of uneven display will occur.

[0045] As shown in Figure 1 The embodiments of the present application provide a display panel, which comprises a substrate substrate 100, a pixel definition layer 200, a light emitting device 220 and a touch structure layer 400.

[0046] The pixel definition layer 200 and the light emitting device 220 are located on the same side of the substrate substrate 100; wherein the pixel definition layer 200 has a plurality of openings 210; the light emitting device 220 comprises a first light emitting layer 221 located in the opening 210.

[0047] The touch structure layer 400 is located on the side of the light emitting device 220 away from the substrate substrate 100, and the touch structure layer 400 comprises a metal grid line, the orthographic projection of the metal grid line on the substrate substrate 100 is located in the orthographic projection of the pixel definition layer 200 on the substrate substrate 100; wherein each metal grid line and the pixel definition layer 200 in the orthographic projection of the metal grid line on the substrate substrate 100 cover:

[0048] Along the direction perpendicular to the extension direction of the metal grid line and parallel to the substrate substrate 100, the distance between the two side edges of the orthographic projection of each metal grid line on the substrate substrate 100 and the edges of the orthographic projection of the pixel definition layer 200 on the substrate substrate 100 is a first distance d;

[0049] Along the direction perpendicular to the substrate substrate 100, the distance between the surface of the metal grid line towards the substrate substrate 100 and the surface of the pixel definition layer 200 away from the substrate substrate 100 is a second distance h;

[0050] d and h satisfy the following relationship: θ≥35°.

[0051] AsFigure 2 As shown, regarding the light emitting device 200, the light emitting device 200 comprises an anode 224, a first light emitting layer 221 and a cathode 223 which are sequentially stacked on the substrate 100 in the direction from the touch layer to the substrate.

[0052] It should be noted that the display panel provided by the present application comprises a substrate, a pixel definition layer arranged on one side of the substrate, a plurality of openings in the pixel definition layer, and a first light emitting layer in the light emitting device in the openings. When the light emitted by the first light emitting layer 221 is emitted towards the pixel definition layer 200 away from the substrate 100 to the touch structure layer 400, due to the shielding effect of the metal grid lines, the light emitted by the first light emitting layer 221 cannot be emitted from the metal grid lines, thereby causing display unevenness during display. Here, the positional relationship between the metal grid lines and the first light emitting layer 221 is designed as follows: along a direction perpendicular to the extension direction of the metal grid lines and parallel to the substrate 100, the distance between the two side edges of the projection of each metal grid line on the substrate 100 and the edges of the projection of the pixel definition layer on the substrate is a first distance d; along a direction perpendicular to the substrate 100, the distance between the surface of the metal grid line towards the substrate and the surface of the pixel definition layer 200 away from the substrate 100 is a second distance h; d and h satisfy the following relationship: θ≥35°. When d and h satisfy the above relationship, if the incident angle of the light emitted from the first light emitting layer 221 to the metal grid line is greater than or equal to the critical angle, the critical angle refers to when the light enters from a medium with a higher refractive index to a medium with a lower refractive index, if the incident angle is greater than a certain critical angle θc (the light is far away from the normal line), the refracted light will disappear, all incident light will be reflected without entering the low refractive index medium, the light emitted from the first light emitting layer 221 to the metal grid line will not be emitted when the incident angle of the light to the metal grid line is greater than the critical angle, thereby causing total internal reflection, and therefore there will be no display problem caused by the metal grid lines during bright screen display; it is ensured that the light emitted by the first light emitting layer 221 will not cause display unevenness due to the shielding of the metal grid lines formed by the metal grid lines.

[0053] Specifically, the metal grid lines form touch electrodes in the touch structure layer, and the touch electrodes comprise a plurality of first electrodes 410 and a plurality of second electrodes 420; wherein:

[0054] The first distance corresponding to each first electrode is d1, and the second distance is h1; d1 and h1 satisfy the following relationship: θ1≥35°;

[0055] The first interval corresponding to each second electrode is d2, and the second interval is h2; d2 and h2 satisfy the following relationship: θ2≥35°.

[0056] It should be noted that, as shown in Figure 3 the first electrode 410 and the second electrode 420 in the figure are structure diagrams of different layers; of course, if the first electrode 410 and the second electrode 420 are arranged in the same layer, the first electrode 410 located on both sides of the second electrode 420 is connected through a bridge layer (not shown in the figure), the touch electrode includes the first electrode 410 and the second electrode 420 arranged vertically in a staggered manner, the metal grid line forms the first electrode 410 and the second electrode 420, when the light emitted by the first light-emitting layer 221 in the light-emitting device 220 is emitted towards the pixel defining layer 200 away from the substrate 100, due to the shielding effect of the metal grid line, the light emitted by the first light-emitting layer 221 cannot be emitted from the metal grid line, thereby causing display unevenness during display; here, the position relationship between the metal grid line and the first light-emitting layer 221 is adjusted as follows:

[0057] As shown in Figure 4 , the first interval corresponding to each first electrode 410 is d1, and the second interval is h1; d1 and h1 satisfy the following relationship: θ1≥35°, when d1 and h1 satisfy the above relationship, if the incident angle of the light emitted from the first light-emitting layer to the first electrode 410 is greater than or equal to the critical angle, the incident light from the first light-emitting layer to the first electrode 410 will not be emitted from the touch structure layer 400, thereby causing total internal reflection in the encapsulation layer 300, and therefore the first electrode 410 will not cause display problems during bright screen display.

[0058] The critical angle is a necessary condition for total internal reflection, and the above critical angle refers to when light enters from a medium with a higher refractive index to a medium with a lower refractive index, if the incident angle is greater than the critical angle θc (the angle formed by the light far away from the normal line), the refracted light will disappear, and all incident light will be reflected without refraction. That is, in the encapsulation layer 300 of the embodiment of the application, the touch structure layer 400 is a medium with a lower refractive index.

[0059] The first interval corresponding to each second electrode 420 is d2, and the second interval is h2; wherein d2 and h2 satisfy the following relationship: θ2≥ 35°; similarly, when d2 and h2 satisfy the above relationship, if the incident angle of the light emitted from the first light-emitting layer to the second electrode 420 is greater than or equal to the critical angle, the incident light from the first light-emitting layer to the second electrode 420 will not be emitted from the touch structure layer, so that total internal reflection occurs in the encapsulation layer, and therefore the second electrode 420 will not cause display problems when displaying in bright screen. It is ensured that the light emitted by the first light-emitting layer 221 will not cause display unevenness due to the shielding of the metal grid lines. As shown in FIG. 8, the arrows represent the emitted light of the first light-emitting layer 221, and all of them undergo total internal reflection. Figure 4 Figure 4

[0060] Of course, in order to ensure that the emitted light of the first light-emitting layer 221 undergoes total internal reflection, the encapsulation layer 300 is formed between the pixel definition layer 200 and the touch structure layer 400, and the refractive index of the encapsulation layer 300 ranges from 1.5 to 1.6.

[0061] Specifically, the first electrode 410 can be a driving electrode, and the second electrode 420 can be a sensing electrode; of course, the first electrode 410 can be a sensing electrode, and the second electrode 420 can be a driving electrode, which is not specifically limited here.

[0062] Of course, when the positions of the first light-emitting layer 221 and the metal grid lines are specifically set, the first electrode 410 and the second electrode 420 can be disposed in the same layer or in different layers, and specifically include:

[0063] For example, the first electrode 410 and the second electrode 420 are disposed in the same layer, and the distance h1 between the surface of the first electrode 410 facing the substrate 100 and the surface of the light-emitting device 220 away from the substrate 100 is equal to the distance h2 between the surface of the second electrode 420 facing the substrate 100 and the surface of the light-emitting device 220 away from the substrate 100.

[0064] In one specific embodiment, within the range allowed by process error, the second spacing h1 corresponding to the first electrode 410 is 10-13 μm; specifically, h1 is 10 μm, 11 μm, 11.5 μm, 12 μm, or 13 μm. Within the range allowed by process error, the second spacing h2 corresponding to the second electrode 420 is 10-13 μm; specifically, h2 is 10 μm, 11 μm, 11.5 μm, 12 μm, or 13 μm.

[0065] ​​In a specific embodiment, the first spacing d1 corresponding to each first electrode 410 is greater than or equal to 9 μm within the range of process error; the first spacing d2 corresponding to each second electrode 420 is greater than or equal to 9 μm. When the first spacing d1 corresponding to each first electrode 410 is greater than or equal to 9 μm; the first spacing d2 corresponding to each second electrode is greater than or equal to 9 μm, the incident angle θ of the light emitted from the first light emitting layer 221 to the metal grid line adjacent to the first light emitting layer 221 of the light emitting device 220 is greater than the critical angle θc, and the light will undergo total internal reflection, thus ensuring the uniformity of the bright screen display and improving the display effect.

[0066] If the incident angle of part of the light emitted from the first light emitting layer 221 to the first electrode 410 is less than the critical angle, i.e., the four solid arrows in the figure represent the emitted light that does not undergo total internal reflection, this part of the light will not undergo total internal reflection, and when it is incident on the first electrode 410, it will be emitted from the edge of the first electrode 410, because the shielding of the first electrode 410 will cause display unevenness in the bright screen display; similarly, if the incident angle of part of the light emitted from the first light emitting layer to the second electrode 420 is less than the critical angle, this part of the light will not undergo total internal reflection, and when it is incident on the second electrode 420, it will be emitted from the edge of the second electrode 420, because the shielding of the second electrode 420 will cause display unevenness in the bright screen display.

[0067] To solve the display unevenness problem caused by part of the light emitted from the first light emitting layer 221 not undergoing total internal reflection, when the incident angle of part of the light emitted from the first light emitting layer 221 to the metal grid line adjacent thereto is less than the critical angle, this part of the light will not undergo total internal reflection and will be uniformly emitted from the edge of the metal grid line, and of course part of the light will be shielded by the metal grid line, such as the dashed arrows in the figure. Figure 5 However, as long as the first spacing d1 corresponding to each first electrode is equal; the first spacing d2 corresponding to each second electrode is equal, the light shielded by the metal grid line will be the same, and similarly the light not shielded by the metal grid line will be uniformly emitted from the edge of the metal grid line, so that the light intensity displayed in the bright screen display is consistent and display unevenness does not occur.

[0068] To further enhance the display effect, the first spacing d1 corresponding to the first electrode 410 is equal to the first spacing d2 corresponding to the second electrode 420.

[0069] For example, the first electrode 410 and the second electrode 420 are not in the same layer; the second spacing h1 corresponding to the first electrode 410 is not equal to the second spacing h2 corresponding to the second electrode 420.

[0070] In one embodiment, the second distance h1 corresponding to the first electrode 410 is 10-12 μm within the range of process error; specifically, h1 is 10, 11, 11.5 or 12 μm. The second distance h2 corresponding to the second electrode 420 is 11-13 μm within the range of process error; specifically, h2 is 11, 11.5, 12 or 13 μm.

[0071] In one embodiment, the first distance d1 corresponding to each of the first electrodes 410 is greater than or equal to 9 μm within the range of process error; the first distance d2 corresponding to each of the second electrodes 420 is greater than or equal to 9 μm within the range of process error. When the first distance d1 corresponding to each of the first electrodes is greater than or equal to 9 μm; the first distance d2 corresponding to each of the second electrodes is greater than or equal to 9 μm, the incident angle θ of the light emitted from the first light-emitting layer to the metal grid line adjacent to the first light-emitting layer of the light-emitting device is greater than the critical angle θc, and the light will undergo total internal reflection, thus ensuring the uniformity of the bright display and improving the display effect.

[0072] If the incident angle of some of the light emitted from the first light-emitting layer 221 to the first electrode 410 is less than the critical angle, the light will not undergo total internal reflection, and when the light is incident on the first electrode 410, it will be emitted from the edge of the first electrode 410, because the first electrode 410 will cause display unevenness in the bright display; similarly, if the incident angle of some of the light emitted from the first light-emitting layer to the second electrode 420 is less than the critical angle, the light will not undergo total internal reflection, and when the light is incident on the second electrode 420, it will be emitted from the edge of the second electrode 420, because the second electrode 420 will cause display unevenness in the bright display. Figure 5 The four solid arrows in FIG. 4 represent the emitted light that does not undergo total internal reflection, and this part of the light will not undergo total internal reflection, and when it is incident on the first electrode 410, it will be emitted from the edge of the first electrode 410, because the first electrode 410 will cause display unevenness in the bright display; similarly, if the incident angle of some of the light emitted from the first light-emitting layer to the second electrode 420 is less than the critical angle, the light will not undergo total internal reflection, and when the light is incident on the second electrode 420, it will be emitted from the edge of the second electrode 420, because the second electrode 420 will cause display unevenness in the bright display.

[0073] To solve the problem of display unevenness caused by some of the light emitted from the first light-emitting layer 221 not undergoing total internal reflection, when the incident angle of some of the light emitted from the first light-emitting layer 221 to the metal grid line adjacent thereto is less than the critical angle, the light will not undergo total internal reflection, and will be emitted uniformly from the edge of the metal grid line, and of course some of the light will be blocked by the metal grid line, as shown in FIG. 5. Figure 5The middle dotted arrow is used for indicating the light emitted from the first electrode and the second electrode, but as long as the first spacing d1 corresponding to each first electrode is equal and the first spacing d2 corresponding to each second electrode is equal, the light blocked by the metal grid lines is the same, and the light not blocked by the metal grid lines will be emitted from the edges of the metal grid lines uniformly, so that the light intensity displayed in the bright screen display is consistent, and the display uneven problem will not occur.

[0074] In order to further enhance the display effect, the first spacing d1 corresponding to the first electrode is equal to the first spacing d2 corresponding to the second electrode.

[0075] When the first spacing d1 between the two side edges of the first electrode 410 in the orthographic projection on the substrate 100 and the edges of the pixel defining layer in the orthographic projection on the substrate 100 is greater than or equal to 9 μm, and the first spacing d1 between the two side edges of the second electrode 420 in the orthographic projection on the substrate 100 and the edges of the pixel defining layer in the orthographic projection on the substrate 100 is greater than or equal to 9 μm, at least the following selection mode is adopted:

[0076] Mode one, in the direction perpendicular to the extension direction of the first electrode and parallel to the substrate, the line width of the first electrode 410 is 2.5 μm-4.5 μm within the range allowed by the process error, or in the direction perpendicular to the extension direction of the second electrode and parallel to the substrate, the line width of the second electrode is 2.5 μm-4.5 μm, or the line width of the first electrode 410 is designed to be 2.5 μm-4.5 μm and the line width of the second electrode is designed to be 2.5 μm-4.5 μm.

[0077] Optionally, the line width of the first electrode 410 and / or the second electrode 420 is in the range of 2.5 μm-4.5 μm within the range allowed by the process error. The specific line width range can be 2.5 μm, 3 μm, 3.5 μm, 4 μm or 4.5 μm, which is not limited here. Under the premise that the first light emitting layer is not changed, when the line width of the first electrode and the second electrode is in the range of 2.5 μm-4.5 μm, the first spacing d1 corresponding to each first electrode will be larger, and the first spacing d2 corresponding to each second electrode will also be larger; so that the light emitted from the first light emitting layer is totally reflected by the first electrode and the second electrode, and therefore the display problem caused by the touch electrode will not occur in the bright screen display; it is ensured that the light emitted from the first light emitting layer will not cause the display uneven phenomenon due to the shielding of the touch electrode formed by the metal grid lines.

[0078] Mode two, as Figure 6The size of the light emitting device 220 is appropriately reduced in each direction, and the size of the light emitting device 220 is fine-tuned without affecting the light emitting effect of the light emitting device 220, that is, the size of the opening 210 on the pixel defining layer 200 is appropriately reduced. Within the range allowed by the process error, the opening 210 can be reduced by 1-3 μm in each direction.

[0079] Without changing the metal grid lines, by changing the size of the opening, the first spacing d1 corresponding to each first electrode will be larger, and the first spacing d2 corresponding to each second electrode will also be larger. Thus, the light emitted by the first light emitting layer is totally internally reflected to the first electrode and the second electrode, so that during bright screen display, the problem of display failure caused by the touch electrode is avoided; and the light emitted by the first light emitting layer is not blocked by the touch electrode formed by the metal grid lines, so that display unevenness is avoided.

[0080] Option 3, as shown in Figure 7 The light emitting device further includes a second light emitting layer; the orthographic projection of the second light emitting layer on the substrate is located within the orthographic projection of the pixel defining layer on the substrate. Of course, the specific shape of the second light emitting layer can be selected according to actual needs, such as a rectangle, a triangle, etc.

[0081] The light emitting device with a special-shaped structure formed by the first light emitting layer and the second light emitting layer can be a rhombus, a polygon, or a semicircle. Due to the presence of the second light emitting layer, the shape of the light emitting device is changed, so that the first spacing d1 between the two side edges of the orthographic projection of the first electrode on the substrate and the edges of the orthographic projection of the pixel defining layer on the substrate will be larger, and the second spacing d2 between the two side edges of the orthographic projection of the second electrode 420 on the substrate and the edges of the orthographic projection of the pixel defining layer on the substrate will be larger. In addition, due to the special-shaped structure of the light emitting device 220 formed by the first light emitting layer and the second light emitting layer, the light emitted by the special-shaped part of the second light emitting layer in the light emitting device 220 will be transmitted through the opening at the intersection position of the first electrode 410 and the second electrode 420, so that the lost light is compensated to some extent, thereby improving the display effect.

[0082] As shown in Figure 8-10 There are various ways for the opening 210 in the pixel defining layer 200, for example, when a plurality of openings 210 are of one shape, the light emitting devices 220 in adjacent openings 210 are of different colors; when a plurality of openings 210 are of multiple shapes, the light emitting devices 220 in openings 210 of the same shape are of the same color.

[0083] Due to the low light emitting efficiency of the blue light emitting layer, in Figure 8 and Figure 10The light-emitting device with a large middle area is a blue sub-pixel light-emitting layer.

[0084] In a second aspect, the display device provided by the embodiments of the present application comprises the display panel of any one of the first aspect.

[0085] Obviously, various modifications and variations of the embodiments of the present application can be made by those skilled in the art without departing from the spirit and scope of the present application. Thus, it is intended that the present application include modifications and variations of the present application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A display panel, characterized in that, include: Substrate, pixel defining layer, light-emitting device, and touch structure layer; The pixel defining layer and the light-emitting device are located on the same side of the substrate; wherein, the pixel defining layer has multiple openings, the light-emitting device is polygonal or semi-circular in shape, the light-emitting device includes a first light-emitting layer located within the opening, the light-emitting device also includes a second light-emitting layer, the second light-emitting layer is rectangular or triangular in shape, when the multiple openings have the same shape, the light-emitting devices in adjacent openings have different colors, when the multiple openings have multiple shapes, the light-emitting devices in openings with the same shape have the same color; The touch structure layer is located on the side of the light-emitting device facing away from the substrate. The touch structure layer includes metal mesh lines, and the orthographic projection of the metal mesh lines on the substrate lies within the orthographic projection of the pixel defining layer on the substrate. Specifically, each metal mesh line and the pixel defining layer whose orthographic projection on the substrate covers its orthographic projection are defined as follows: Along a direction perpendicular to the extension direction of the metal mesh line and parallel to the substrate, the distance between the two sides of the orthographic projection of each metal mesh line on the substrate and the edge of the orthographic projection of the pixel defining layer on the substrate is a first spacing d; Along a direction perpendicular to the substrate, the distance between the surface of the metal mesh line facing the substrate and the surface of the pixel defining layer away from the substrate is the second spacing h; d and h satisfy the following relationship: θ≥35°.

2. The display panel according to claim 1, characterized in that, The metal mesh lines form touch electrodes within the touch structure layer, and the touch electrodes include multiple first electrodes and multiple second electrodes; wherein: The first spacing for each of the first electrodes is d1, and the second spacing is h1; d1 and h1 satisfy the following relationship: θ1≥35°; The first spacing for each of the second electrodes is d2, and the second spacing is h2; d2 and h2 satisfy the following relationship: θ2≥35°.

3. The display panel according to claim 2, characterized in that, The first spacing d1 corresponding to each of the first electrodes is greater than or equal to 9 μm; the first spacing d2 corresponding to each of the second electrodes is greater than or equal to 9 μm.

4. The display panel according to claim 3, characterized in that, The first spacing d1 corresponding to each of the first electrodes is equal; the first spacing d2 corresponding to each of the second electrodes is equal.

5. The display panel according to claim 4, characterized in that, The first spacing d1 corresponding to the first electrode is equal to the first spacing d2 corresponding to the second electrode.

6. The display panel according to claim 2, characterized in that, The first electrode and the second electrode are disposed in the same layer, and the second spacing h1 corresponding to the first electrode is equal to the second spacing h2 corresponding to the second electrode.

7. The display panel according to claim 2, characterized in that, The first electrode and the second electrode are on different layers; The second spacing h1 corresponding to the first electrode is not equal to the second spacing h2 corresponding to the second electrode.

8. The display panel according to claim 6, characterized in that, The second spacing h1 corresponding to the first electrode is 10μm-13μm; The second spacing h2 corresponding to the second electrode is 10μm-13μm.

9. The display panel according to claim 8, characterized in that, The second spacing h1 corresponding to the first electrode is 11.5 μm; the second spacing h2 corresponding to the second electrode is 11.5 μm.

10. The display panel according to claim 7, characterized in that, The second spacing h1 corresponding to the first electrode is 10μm-12μm; The second spacing h2 corresponding to the second electrode is 11μm-13μm.

11. The display panel according to claim 10, characterized in that, The second spacing h1 corresponding to the first electrode is 11 μm; the second spacing h2 corresponding to the second electrode is 12 μm.

12. The display panel according to claim 2, characterized in that, Along a direction perpendicular to the extension direction of the first electrode and parallel to the substrate, the linewidth of the first electrode is 2.5 μm-4.5 μm, and / or, The linewidth of the second electrode is 2.5 μm to 4.5 μm in a direction perpendicular to the extension direction of the second electrode and parallel to the substrate.

13. The display panel according to any one of claims 1-12, characterized in that, An encapsulation layer is formed between the pixel defining layer and the touch structure layer, and the refractive index of the encapsulation layer is in the range of 1.5-1.

6.

14. The display panel according to claim 1, characterized in that, The light-emitting device further includes a second light-emitting layer, which is located on the side of the pixel defining layer opposite to the substrate, and the orthogonal projection of the second light-emitting layer on the substrate is located within the orthogonal projection of the pixel defining layer on the substrate.

15. A display device, characterized in that, Includes the display panel as described in any one of claims 1-14.

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