Display panel, manufacturing and driving method thereof and display device

Abstract

The invention relates to a display panel, a manufacturing and driving method thereof and a display device. The display panel comprises a display area and a non-display area. The display panel further comprises a substrate, a plurality of light-emitting units and a protective adhesive layer, the protective adhesive layer is located on the sides, away from the substrate, of the light-emitting units and comprises a light-transmitting area and a light-shading area, the light transmittance of the light-transmitting area is larger than that of the light-shading area, and the protective adhesive layer comprises the same material in the light-transmitting area and the light-shading area; the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least part of the non-display area. According to the display panel provided by the invention, the shading protection glue layer is arranged in the non-display area, so that light reflection of a metal part in the non-display area caused by external light irradiation is avoided; meanwhile, the protective adhesive layer of the display panel provided by the invention adopts at least partially the same material in the display area and the non-display area, so that the whole protective adhesive layer can be manufactured at one time, a shading film layer structure does not need to be manufactured independently, the technological process of the display panel is simplified, and the cost is saved.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel and a manufacturing and driving method thereof, and a display device. Background Art

[0002] In modern display technology, OLED (Organic Light-Emitting Diode) display panels are widely used due to their high contrast, wide color gamut and fast response time. Metal traces are an important component of OLED display panels for transmitting electrical signals. They are usually made of high-reflectivity metal materials. These metal traces are densely arranged inside the panel and span the display area and non-display area. When external light shines on the panel, especially in the non-display area, the metal traces will reflect the light, causing white spots or bright spots to appear in the non-display area of ​​the panel in the human eye, affecting the overall display effect of the electronic device and interfering with the user's viewing experience. Summary of the invention

[0003] In order to solve the above technical problems, the present disclosure provides a display panel and a manufacturing and driving method thereof, and a display device.

[0004] The present disclosure provides a display panel, including a display area and a non-display area; the display panel also includes: a substrate; a plurality of light-emitting units, located on one side of the substrate and all located in the display area; a protective adhesive layer, located on a side of the plurality of light-emitting units away from the substrate, the protective adhesive layer including a light-transmitting area and a light-shielding area, the light transmittance of the protective adhesive layer in the light-transmitting area is greater than the light transmittance of the protective adhesive layer in the light-shielding area, and the protective adhesive layer includes the same material in the light-transmitting area and the light-shielding area; in a direction perpendicular to the plane of the substrate, the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least part of the non-display area.

[0005] Based on the same inventive concept, the present disclosure also provides a method for manufacturing a display panel, wherein the display panel includes a display area and a non-display area; the method includes: providing a substrate; generating a plurality of light-emitting units on one side of the substrate, wherein the plurality of light-emitting units are all located in the display area; generating a protective adhesive layer on a side of the plurality of light-emitting units away from the substrate, wherein the protective adhesive layer includes a light-transmitting area and a light-shielding area, wherein the light transmittance of the protective adhesive layer in the light-transmitting area is greater than the light transmittance of the protective adhesive layer in the light-shielding area, and the protective adhesive layer includes the same material in the light-transmitting area and the light-shielding area; in a direction perpendicular to the plane of the substrate, the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least part of the non-display area.

[0006] Based on the same inventive concept, the present disclosure also provides a method for driving a display panel, wherein the display surface includes a display area and a non-display area; the display panel also includes: a substrate; a plurality of light-emitting units, located on one side of the substrate, and all located in the display area; a protective rubber layer, located on a side of the plurality of light-emitting units away from the substrate, the protective rubber layer including a light-transmitting area and a light-shielding area, the protective rubber layer including electrochromic materials in both the light-transmitting area and the light-shielding area, and the light-transmitting area and the light-shielding area of ​​the protective rubber layer are insulated; in a direction perpendicular to the plane of the substrate, the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least part of the non-display area; the method includes: during the display process of the display panel, supplying power to the light-shielding area of ​​the protective rubber layer, so that the transmittance of the protective rubber layer in the light-transmitting area is greater than the transmittance of the protective rubber layer in the light-shielding area.

[0007] Based on the same inventive concept, the present disclosure also provides a display device, comprising any one of the display panels described above.

[0008] The technical solution provided by the present disclosure has the following advantages over the prior art: the display panel provided by the present disclosure provides a shading protective adhesive layer in the non-display area to prevent external light from irradiating and causing metal parts in the non-display area to reflect light; at the same time, the protective adhesive layer of the display panel provided by the present disclosure uses at least part of the same material in the display area and the non-display area, so that the entire protective adhesive layer can be manufactured at one time, and there is no need to separately manufacture a shading film layer structure, thereby simplifying the process flow of the display panel and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0011] Figure 1 A schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present disclosure;

[0012] Figure 2 A schematic diagram of a planar structure of a display panel provided in an embodiment of the present disclosure;

[0013] Figure 3 A schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present disclosure;

[0014] Figure 4 A schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present disclosure;

[0015] Figure 5 A schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present disclosure;

[0016] Figure 6 A schematic diagram of a planar structure of another display panel provided in an embodiment of the present disclosure;

[0017] Figure 7 A schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present disclosure;

[0018] Figure 8 A schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present disclosure;

[0019] Fig. 9 A schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present disclosure, the scheme of the embodiments of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the present disclosure, but the embodiments of the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0022] An embodiment of the present disclosure provides a display panel, such as Figure 1 and Figure 2 As shown, Figure 1 It is a schematic diagram of the cross-sectional structure of the display panel. Figure 2 Schematic diagram of the planar structure of a display panel. The display panel includes a display area AA and a non-display area NA.

[0023] The display panel further includes a substrate 1 , a plurality of light emitting units 20 , a driving circuit layer 5 and a protective adhesive layer 3 .

[0024] A plurality of light emitting units 20 are located on one side of the substrate 1 and are all located in the display area AA.

[0025] The driving circuit layer 5 is located between the light-emitting unit 20 and the substrate 1, and the driving circuit layer 5 includes a pixel driving circuit 51 located in the display area AA and a shift register circuit 52 located in the non-display area NA; the pixel driving circuit 51 is connected to the light-emitting unit 20 and provides a light-emitting signal to the light-emitting unit 20, and the shift register circuit 52 is connected to the pixel driving circuit 51 through a cross-area metal wiring 50, and provides a driving signal to the pixel driving circuit 51.

[0026] It is the metal structure of the circuit in the driving circuit layer 5 that causes the reflection problem. Since the non-display area NA does not include the light-emitting unit 20, the reflection phenomenon in the non-display area NA is more obvious.

[0027] Related technologies will add a film layer structure including shading materials to the display panel to solve the reflection problem, but this will bring about problems such as uneven film thickness, increased costs due to the addition of mask plates, and complicated process flow.

[0028] In view of this, if Figure 1 As shown, the protective adhesive layer 3 of the embodiment of the present disclosure is located on a side of the plurality of light-emitting units 20 away from the substrate 1, the protective adhesive layer 3 includes a light-transmitting area 31 and a light-shielding area 32, the transmittance of the protective adhesive layer 3 in the light-transmitting area 31 is greater than the transmittance of the protective adhesive layer 3 in the light-shielding area 32, and the protective adhesive layer 3 includes the same material in the light-transmitting area 31 and the light-shielding area 32.

[0029] Specifically, the entire protective rubber layer 3 is made at one time. The manufacturing method of the protective rubber layer 3 may specifically include: firstly generating a film layer of the same material in the light-transmitting area 31 and the light-shielding area 32, and then performing a secondary treatment on the material in the light-transmitting area 31 and / or the light-shielding area 32, so that the material properties in the light-transmitting area 31 and / or the light-shielding area 32 are partially changed, and then the light transmittance of the material is changed, so that the light transmittance of the protective rubber layer 3 in the light-transmitting area 31 is greater than the light transmittance of the protective rubber layer 3 in the light-shielding area 32, and at the same time, the protective rubber layer 3 in the light-transmitting area 31 and the light-shielding area 32 include the same material.

[0030] In a specific embodiment, the thickness of the protective adhesive layer 3 in the light-transmitting area 31 and the light-shielding area 32 is consistent, that is, the difference in thickness of the protective adhesive layer 3 in the light-transmitting area 31 and the light-shielding area 32 does not exceed the process error. The process error is the minimum unit that the relevant equipment can control the thickness of the protective adhesive layer 3.

[0031] In the direction z perpendicular to the plane of the substrate 1 , the light-transmitting area 31 covers a plurality of light-emitting units 20 , so that the display panel can normally display images through the light-emitting units 20 ; the light-shielding area 32 covers at least a portion of the non-display area NA to block reflected light.

[0032] The display panel provided by the embodiment of the present disclosure is provided with a shading protective adhesive layer 3 in the non-display area NA to prevent external light from reflecting the metal parts in the non-display area NA; at the same time, the protective adhesive layer 3 of the display panel provided by the present disclosure adopts at least part of the same material in the display area AA and the non-display area NA, so that the entire protective adhesive layer 3 can be manufactured at one time, and there is no need to separately manufacture a shading film layer structure, thereby simplifying the process flow of the display panel and saving costs.

[0033] In some embodiments, the light shielding area 32 covers the entire non-display area NA of the display panel to shield the reflected light of the non-display area NA to the greatest extent.

[0034] It is understandable that, due to the different positions of the non-display areas NA of display panels of different models, for example, a flexible display panel, part of its non-display area NA is bent to the side of the substrate away from the light-emitting unit. In this special embodiment, the shading area 32 only covers part of the non-display area NA.

[0035] In other embodiments, in order to prevent the cross-area metal wiring 50 from reflecting light at the junction of the display area AA and the non-display area NA, the light shielding area 32 also covers at least a portion of the display area AA, but does not cover the light-emitting unit 20 located in the display area AA. The specific position of the light shielding area 32 covering the display area AA will be further described in the following embodiments.

[0036] Specifically, after the display panel is manufactured, it will be assembled into a display device, which includes an external packaging structure, and the external packaging structure includes black ink at a position corresponding to the non-display area NA of the display panel, further shielding the internal structure of the non-display area NA to achieve an aesthetic effect. However, the process precision of the external packaging structure when coating the black ink is low, and there will be a gap between the area corresponding to the black ink and the display area AA, and the metal parts of the display panel located at the gap position will cause reflection problems. In view of this, in some embodiments, the shading area 32 of the above-mentioned protective adhesive layer 3 covers the non-display area NA that is not blocked by the above-mentioned black ink.

[0037] In some embodiments, the transmittance of the protective adhesive layer 3 in the light-transmitting area 31 is greater than 90%, thereby ensuring a better light blocking effect; the transmittance of the protective adhesive layer 3 in the light-shielding area 32 is less than 10%, thereby ensuring the light transmittance of the light-emitting unit 20 and the overall display effect of the display panel.

[0038] In some embodiments, the protective adhesive layer 3 includes photochromic materials in both the light-transmitting region 31 and the light-shielding region 32 .

[0039] The manufacturing method of the protective adhesive layer 3 may specifically include: first generating a protective adhesive material layer of the same material in the light-transmitting area 31 and the light-shielding area 32, and then irradiating light on the corresponding position of the protective adhesive material layer and the light-shielding area 32, so that the protective adhesive material in the light-shielding area 32 changes color (specifically, the light transmittance drops to 10% or less), so that the transmittance of the protective adhesive layer 3 in the light-transmitting area 31 is greater than the transmittance of the protective adhesive layer 3 in the light-shielding area 32, and at the same time, the protective adhesive layer 3 includes the same material in the light-transmitting area 31 and the light-shielding area 32.

[0040] Specifically, the light used to irradiate the position of the protective adhesive material layer corresponding to the light shielding area 32 is UV (Ultraviolet) light.

[0041] In some embodiments, the photochromic material includes a leuco dye, a photoacid generator, and a tertiary amine compound.

[0042] Specifically, the photoacid generator is a compound that generates acids such as Lewis acid and Bronsted acid by irradiation with active energy rays, and is preferably a photoacid generator that has light absorption ability in the wavelength region above 365nm; the colorless dye is a compound that changes color by contact with acid, thereby achieving a color change effect; the tertiary amine compound can delay the color change of the colorless dye in contact with acid, thereby allowing light to penetrate deep into the film layer.

[0043] In specific implementation, the above-mentioned photochromic material can also be selected from spiro compounds, bridged ring compounds and other materials that can change light transmittance by light exposure, all of which are within the protection scope of the embodiments of the present disclosure.

[0044] In some embodiments, the protective adhesive layer 3 includes electrochromic materials in both the light-transmitting area 31 and the light-shielding area 32 ; and the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3 are insulated from each other.

[0045] The manufacturing method of the protective glue layer 3 may specifically include: generating a protective glue layer 3 of the same material and both of which are electrochromic materials in the light-transmitting area 31 and the light-shielding area 32. The driving method of the display panel may include: during the display process of the display panel, supplying power to the light-shielding area 32 of the protective glue layer 3, so that the protective glue material in the light-shielding area 32 changes color (specifically, the light transmittance decreases to 10% or less), thereby achieving that the light transmittance of the protective glue layer 3 in the light-transmitting area 31 is greater than the light transmittance of the protective glue layer 3 in the light-shielding area 32.

[0046] In some embodiments, the electrochromic material includes a viologene compound or a VIB Group metal oxide.

[0047] Specifically, viologens are redox compounds. This type of material has reversible electrochemical redox, and the reduced state has a considerable molar absorption coefficient at different visible light frequencies. Viologens have excellent electron transfer properties. When stimulated by an external electric field, they can transfer electrons with the assistance of electron-rich inorganic anions or organic ligands, complete a two-step reduction reaction, and show three different states (neutral V0, single free radical V+, and double-charged V2+). These three states have different electron distribution forms and different electron absorption bands, and then different light transmittances.

[0048] Specifically, the VIB group metal oxide can be a tungsten oxide (WO3) film. The light transmittance change of the VIB group metal oxide is caused by the double injection and double extraction of ions and electrons. VIB group metal element ions are generally easy to color, and the energy difference between the ground state and the excited state is small. In addition, the electronic layer structure of the metal in the oxide is unstable. Under certain conditions of the electric field, the valence state can be reversed to form a mixed valence ion coexistence state, and then its light transmittance changes with the change of the ion valence and concentration.

[0049] In specific implementation, the above-mentioned photochromic material may also be selected from other materials that can change the light transmittance through an electric field, all of which are within the protection scope of the embodiments of the present disclosure.

[0050] In some embodiments, Figure 3 As shown, the display panel also includes an electrode layer 33, and the protective rubber layer 3 contacts the electrode layer 33 in the shading area 32; during the display process of the display panel, the electrode layer 33 is used to receive a fixed potential and to supply power to the shading area 32 of the protective rubber layer 3, thereby realizing electrochromism.

[0051] In one embodiment, if Figure 3 As shown, the electrode layer 33 is located inside the protective rubber layer 3, that is, the upper and lower surfaces of the electrode layer 33 are in contact with the protective rubber layer 3; in other embodiments, the electrode layer 33 may also be located on a side of the protective rubber layer 3 close to the substrate 1 or on a side away from the substrate 1.

[0052] Specifically, the electrode layer 33 is a transparent conductive layer, and may include materials such as indium tin oxide (ITO), zinc oxide (ZnO), and indium oxide (In 2 O 3 ).

[0053] In some embodiments, Figure 4 As shown, the display panel further includes a touch layer 7, which is located on one side of the protective adhesive layer 3. The touch layer 7 includes a touch electrode 70, and the protective adhesive layer 3 contacts the touch electrode 70 in the light shielding area 32.

[0054] Specifically, Figure 4As shown, the touch electrode 70 includes a first touch electrode 71 and a second touch electrode 72. In the direction z perpendicular to the plane of the substrate 1, the first touch electrode 71 and the second touch electrode 72 are separated by an insulating layer. The overlapping portion of the first touch electrode 71 and the second touch electrode 72 forms a capacitor structure, thereby forming a capacitive touch layer. When the user's finger touches the display panel of the electronic device, the charge will be transferred from the first touch electrode 71 to the second touch electrode 72, thereby changing the capacitance between the two electrodes. The change in capacitance can be detected by the electronic device, thereby realizing the touch function.

[0055] In a specific implementation, at least one of the first touch electrode 71 and the second touch electrode 72 is connected to a fixed potential, and the protective adhesive layer 3 contacts the touch electrode 70 connected to the fixed potential in the light shielding area 32 , thereby achieving electrochromism.

[0056] In one embodiment, if Figure 4 As shown, the touch layer 7 is located on the side of the protective rubber layer 3 close to the substrate 1, and the protective rubber layer 3 contacts the first touch electrode 71 in the shading area 32; in other embodiments, the touch layer 7 may also be located on the side of the protective rubber layer 3 away from the substrate 1, and the protective rubber layer 3 contacts the second touch electrode 72 in the shading area 32.

[0057] In some embodiments, Figure 5 As shown, a partition structure 34 is included between the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3 , thereby ensuring insulation between the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3 .

[0058] Specifically, in a direction parallel to the plane of the substrate 1 and pointing from the display area AA to the non-display area NA, the width D of the partition structure 34 is greater than 1 micrometer.

[0059] In other embodiments, in addition to the above-mentioned partition structure 34, there may be other structures for achieving insulation between the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3, for example, a structure for generating material insulation between the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3, etc., all of which are within the protection scope of the embodiments of the present disclosure.

[0060] It is understandable that the partition structure 34 is only used to indicate that the protective adhesive layer 3 has a partition there, and does not limit the partition structure 34 to not include any material. After the protective adhesive layer 3 is generated, an upper film layer such as a packaging layer will be generated on the side of the protective adhesive layer 3 away from the substrate 1, and the material of the upper film layer will be filled into the partition structure 34.

[0061] In some embodiments, all pixel driving circuits 51 in the display panel are located in the display area AA, and the display area AA is not completely covered by the light emitting unit 20. In this embodiment, Figure 5As shown, the partition structure 34 is located in the display area AA, and the light shielding area 32 also covers at least a portion of the display area AA to prevent the cross-area metal wiring 50 from generating reflections at the junction of the display area AA and the non-display area NA.

[0062] In some embodiments, Figure 6 As shown, the display area AA includes an irregular sub-area AA', and at least one edge of the orthographic projection of the irregular sub-area AA' on the plane of the substrate 1 is a curve. The light shielding area 32 covers at least part of the non-display area NA adjacent to the irregular sub-area AA'.

[0063] from Figure 6 It can be seen that compared with the non-display area NA at other positions, the area of ​​the non-display area NA adjacent to the irregular sub-area AA' is larger, and the probability of reflection problems is higher. The shading area 32 covers the non-display area NA adjacent to the irregular sub-area AA' to further avoid the generation of reflections.

[0064] In some embodiments, Figure 7 As shown, the display panel includes a driving circuit layer 5. The driving circuit layer 5 is located between the substrate 1 and the light emitting unit 20, and the driving circuit layer includes at least one cross-area metal wiring 50, and the cross-area metal wiring 50 crosses the display area AA and the non-display area NA.

[0065] The light-emitting unit 20 includes an anode metal RE and an organic light-emitting material 21. The anode metal RE is connected to the pixel driving circuit 51 and is used to receive a light-emitting signal provided by the pixel driving circuit 51. The part of the organic light-emitting material 21 that contacts the anode metal RE emits electroluminescence according to the light-emitting signal.

[0066] In a direction perpendicular to the plane of the substrate 1 , the light shielding area 32 also covers at least a portion of the display area AA, and the anode metal RE and the light shielding area 32 of the protective glue layer 3 jointly cover the cross-area metal trace 50 .

[0067] Specifically, in order to ensure the display effect of the light-emitting unit 20, the anode metal RE is usually made of a metal material that is not easy to reflect light, such as indium tin oxide (ITO), etc., and the metal wiring is prone to reflection due to the limitation of the material and the side wall angle, and the side wall angle is a process characteristic, and the cost of improvement is extremely high. The above embodiment of the present disclosure further avoids the generation of reflection in the display panel by covering the cross-area metal wiring 50 that is easy to reflect light through the anode metal RE and the shading area 32 of the protective glue layer 3.

[0068] It can be understood that the anode metal RE and the shading area 32 of the protective glue layer 3 jointly cover the cross-region metal routing 50, which means that each part of the cross-region metal routing 50 is either covered by the shading area 32, or covered by the anode metal RE, or covered by both the shading area 32 and the anode metal RE.

[0069] In some embodiments, Figure 8 As shown, the driving circuit layer 5 includes an active layer S and a source-drain metal layer M2. The source-drain metal layer M2 is located on the side of the active layer S away from the substrate 1. The source-drain metal layer M2 includes a metal structure electrically connected to the active layer S; the cross-region metal wiring 50 is located in the source-drain metal layer M2.

[0070] Figure 8 A more specific schematic diagram of the cross-sectional structure of a display panel is shown. Specifically, the display panel includes a substrate 1, a substrate Buffer, a first gate insulating layer GI1, a wiring insulating layer IMD, a first dielectric insulating layer ILD1, a second dielectric insulating layer ILD2, a second gate insulating layer GI2, a third dielectric insulating layer ILD3, a first planarization layer PLN1, a second planarization layer PLN2, a pixel definition layer HP, a cathode layer COM, an organic encapsulation layer IJP, a first touch insulating layer TB, a second touch insulating layer TP and the protective adhesive layer 3 in the above embodiment of the present disclosure, which are stacked in sequence.

[0071] The substrate Buffer includes a metal blocking layer BSM, the first gate insulating layer GI1 includes a polysilicon active layer Poly of the first type transistor TFT1, the wiring insulating layer IMD includes a first metal layer M1, the first dielectric insulating layer ILD1 includes a capacitor metal layer MC, the second gate insulating layer GI2 includes an oxide active layer IGZO of the second type transistor TFT2, the third dielectric insulating layer ILD3 includes a gate metal layer MG, the first planarizing layer PLN1 includes the above-mentioned source and drain metal layer M2, and the second planarizing layer PLN2 includes a third metal layer M3. The display panel also includes a support column structure PS on the side of the pixel definition layer HP away from the substrate 1.

[0072] In some embodiments, the material of the cross-region metal trace 50 includes aluminum or silver, and the width of the cross-region metal trace 50 is greater than 200 nanometers in the extension direction parallel to the plane of the substrate 1 and perpendicular to the cross-region metal trace 50. Such cross-region metal trace 50 is prone to cause reflection.

[0073] Based on the same inventive concept, corresponding to the display panel of any of the above embodiments, the present application further provides a method for manufacturing a display panel, wherein the display panel includes a display area AA and a non-display area NA.

[0074] like Fig. 9 As shown, the manufacturing method of the display panel includes:

[0075] S1. Provide a substrate 1.

[0076] S2. Generate a plurality of light-emitting units 20 on one side of the substrate 1. The plurality of light-emitting units 20 are all located in the display area AA.

[0077] S3, forming a protective adhesive layer 3 on a side of the plurality of light-emitting units 20 away from the substrate 1. The protective adhesive layer 3 includes a light-transmitting area 31 and a light-shielding area 32, the light transmittance of the protective adhesive layer 3 in the light-transmitting area 31 is greater than the light transmittance of the protective adhesive layer 3 in the light-shielding area 32, and the protective adhesive layer 3 includes the same material in the light-transmitting area 31 and the light-shielding area 32; in a direction perpendicular to the plane of the substrate 1, the light-transmitting area 31 covers the plurality of light-emitting units 20, and the light-shielding area 32 covers at least a portion of the non-display area NA.

[0078] The method provided by the embodiment of the present disclosure sets a shading protective adhesive layer 3 in the non-display area NA to prevent external light from reflecting the metal parts in the non-display area NA. At the same time, in the method provided by the present disclosure, the protective adhesive layer 3 in the display area AA and the non-display area NA uses at least part of the same material, so that the entire protective adhesive layer 3 can be manufactured at one time, and there is no need to separately manufacture a shading film layer structure, thereby simplifying the process flow of the display panel and saving costs.

[0079] In some embodiments, the above S3 specifically includes:

[0080] A protective glue material layer is generated on a side of the plurality of light-emitting units 20 away from the substrate 1 , and the protective glue material layer includes photochromic materials at positions corresponding to the light-transmitting area 31 and the light-shielding area 32 .

[0081] Light is irradiated on the position of the protective adhesive material layer corresponding to the light shielding area 32 to form a protective adhesive layer 3 including a light-transmitting area 31 and a light shielding area 32 .

[0082] Specifically, the light used to irradiate the position of the protective adhesive material layer corresponding to the light shielding area 32 is UV light.

[0083] In some embodiments, the photochromic material includes a leuco dye, a photoacid generator, and a tertiary amine compound.

[0084] The method of the above embodiment is used to manufacture the corresponding display panel in any of the above embodiments, and has the beneficial effects of the corresponding embodiment, which will not be described in detail here.

[0085] Based on the same inventive concept, corresponding to the display panel of any of the above embodiments, the present application further provides a method for driving a display panel, wherein the display surface includes a display area AA and a non-display area NA.

[0086] The display panel also includes: a substrate 1; a plurality of light-emitting units 20, which are located on one side of the substrate 1 and are all located in the display area AA; a protective adhesive layer 3, which is located on a side of the plurality of light-emitting units 20 away from the substrate 1, the protective adhesive layer 3 includes a light-transmitting area 31 and a light-shielding area 32, the protective adhesive layer 3 includes electrochromic materials in both the light-transmitting area 31 and the light-shielding area 32, and the light-transmitting area 31 and the light-shielding area 32 of the protective adhesive layer 3 are insulated from each other; in a direction perpendicular to the plane of the substrate 1, the light-transmitting area 31 covers the plurality of light-emitting units 20, and the light-shielding area 32 covers at least a portion of the non-display area NA.

[0087] The driving method of the display panel includes:

[0088] During the display process of the display panel, power is supplied to the light shielding area 32 of the protective rubber layer 3 , so that the light transmittance of the protective rubber layer 3 in the light transmitting area 31 is greater than the light transmittance of the protective rubber layer 3 in the light shielding area 32 .

[0089] The method provided by the embodiment of the present disclosure sets a protective adhesive layer 3 including an electrochromic material in the non-display area NA, and supplies power to the shading area 32 of the protective adhesive layer 3 during the display process of the display panel, so as to prevent external light from irradiating and causing the metal parts in the non-display area NA to reflect. At the same time, in the method provided by the present disclosure, the protective adhesive layer 3 in the display area AA and the non-display area NA uses at least part of the same material, so that the entire protective adhesive layer 3 can be manufactured at one time, without the need to separately manufacture a shading film structure, thereby simplifying the process flow of the display panel and saving costs.

[0090] In specific implementation, different electrochromic materials require different discoloration threshold voltages, and those skilled in the art can provide a voltage of corresponding magnitude to the light shielding area 32 of the protective adhesive layer 3 according to the inherent properties of different materials, which is not further limited here.

[0091] In some embodiments, Figure 3 As shown, the display panel further includes an electrode layer 33, and the protective glue layer 3 contacts the electrode layer 33 in the light shielding area 32. The driving method of the display panel specifically includes: providing a fixed potential to the electrode layer 33 during the display process of the display panel.

[0092] In some embodiments, Figure 4 As shown, the display panel further includes a touch layer 7, and the touch layer 7 is located on one side of the protective rubber layer 3. The touch layer 7 includes a touch electrode 70, and the protective rubber layer 3 contacts the touch electrode 70 in the light shielding area 32. The driving method of the display panel specifically includes: during the display process of the display panel, power is supplied to the touch electrode 70 in contact with the light shielding area 32 of the protective rubber layer 3.

[0093] The method of the above embodiment is used to drive the corresponding display panel in any of the above embodiments, and has the beneficial effects of the corresponding embodiment, which will not be described in detail here.

[0094] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the above method.

[0095] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0096] Based on the same inventive concept, corresponding to the display panel of any of the above embodiments, the present application also provides a display device, including the display panel of any of the above embodiments.

[0097] The display device provided by the embodiment of the present disclosure sets a shading protective adhesive layer 3 in the non-display area NA of the display panel to prevent external light from reflecting the metal parts in the non-display area NA. At the same time, in the display device provided by the present disclosure, the protective adhesive layer 3 of the display panel uses at least part of the same material in the display area AA and the non-display area NA, so that the entire protective adhesive layer 3 can be manufactured at one time, without the need to separately manufacture a shading film layer structure, thereby simplifying the process flow of the display panel and saving costs.

[0098] The above-mentioned display device can be a device including a display panel, such as a smart watch, a mobile phone, a tablet, a computer, a television, etc.

[0099] Specifically, the display device includes an external packaging structure, and the external packaging structure includes black ink at a position corresponding to the non-display area NA of the display panel, further shielding the internal structure of the non-display area NA to achieve an aesthetic effect. However, the process precision of the external packaging structure when coating the black ink is low, and there will be a gap between the area corresponding to the black ink and the display area AA, and the metal parts of the display panel located at the gap position will cause reflection problems. In view of this, in some embodiments, the shading area 32 of the above-mentioned protective adhesive layer 3 covers the non-display area NA that is not blocked by the above-mentioned black ink.

[0100] The device of the above embodiment includes the corresponding display panel in any of the above embodiments, and has the beneficial effects of the corresponding display panel embodiment, which will not be described in detail here.

[0101] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the above elements.

[0102] The above are only specific embodiments of the present disclosure, which enable those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described above, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that: including a display area and a non-display area; The display panel further includes: substrate; A plurality of light-emitting units are located on one side of the substrate and are all located in the display area; A protective adhesive layer, located on a side of the plurality of light-emitting units away from the substrate, the protective adhesive layer comprising a light-transmitting area and a light-shielding area, the light transmittance of the protective adhesive layer in the light-transmitting area is greater than the light transmittance of the protective adhesive layer in the light-shielding area, and the protective adhesive layer in the light-transmitting area and the light-shielding area comprises the same material; In a direction perpendicular to the plane of the substrate, the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least a portion of the non-display area.

2. The display panel according to claim 1, characterized in that: The light transmittance of the protective adhesive layer in the light-transmitting area is greater than 90%, and the light transmittance of the protective adhesive layer in the light-shielding area is less than 10%.

3. The display panel according to claim 1, characterized in that: The protective adhesive layer includes photochromic materials in both the light-transmitting area and the light-shielding area.

4. The display panel according to claim 3, characterized in that: The photochromic material includes a colorless dye, a photoacid generator and a tertiary amine compound.

5. The display panel according to claim 1, characterized in that: The protective adhesive layer includes electrochromic materials in both the light-transmitting area and the light-shielding area; The light-transmitting area and the light-shielding area of ​​the protective adhesive layer are insulated from each other.

6. The display panel according to claim 5, characterized in that: The electrochromic material includes viologens or VIB group metal oxides.

7. The display panel according to claim 5, characterized in that: It also includes an electrode layer, and the protective adhesive layer is in contact with the electrode layer in the light-shielding area; During the display process of the display panel, the electrode layer is used to receive a fixed potential.

8. The display panel according to claim 5, characterized in that: It also includes a touch layer, which is located on one side of the protective adhesive layer; The touch layer includes a touch electrode, and the protective adhesive layer contacts the touch electrode in the light shielding area.

9. The display panel according to claim 5, characterized in that: A partition structure is provided between the light-transmitting area and the light-shielding area of ​​the protective adhesive layer.

10. The display panel according to claim 9, characterized in that: The partition structure is located in the display area.

11. The display panel according to claim 1, characterized in that: The display area includes an irregular sub-area, and at least one edge of the orthographic projection of the irregular sub-area on the substrate plane is a curve; The light shielding area covers at least a portion of the non-display area adjacent to the irregular sub-area.

12. The display panel according to claim 1, characterized in that: Also includes: A driving circuit layer, located between the substrate and the light-emitting unit, the driving circuit layer comprising at least one cross-region metal wiring, the cross-region metal wiring spanning the display region and the non-display region; The light emitting unit includes an anode metal; In a direction perpendicular to the plane of the substrate, the anode metal and the light shielding area of ​​the protective glue layer jointly cover the cross-area metal wiring.

13. The display panel according to claim 12, characterized in that: The driving circuit layer includes an active layer and a source-drain metal layer, wherein the source-drain metal layer is located on a side of the active layer away from the substrate, and the source-drain metal layer includes a metal structure electrically connected to the active layer; The cross-region metal wiring is located in the source-drain metal layer.

14. The display panel according to claim 12, characterized in that: The material of the cross-region metal wiring includes aluminum or silver. In the extension direction parallel to the substrate plane and perpendicular to the cross-region metal wiring, the width of the cross-region metal wiring is greater than 200 nanometers.

15. A method for manufacturing a display panel, characterized in that: The display panel includes a display area and a non-display area; The method comprises: providing a substrate; Generating a plurality of light-emitting units on one side of the substrate, wherein the plurality of light-emitting units are all located in the display area; A protective rubber layer is generated on a side of the multiple light-emitting units away from the substrate, the protective rubber layer includes a light-transmitting area and a light-shielding area, the light transmittance of the protective rubber layer in the light-transmitting area is greater than the light transmittance of the protective rubber layer in the light-shielding area, and the protective rubber layer includes the same material in the light-transmitting area and the light-shielding area; in a direction perpendicular to the plane of the substrate, the light-transmitting area covers the multiple light-emitting units, and the light-shielding area covers at least a portion of the non-display area.

16. The method according to claim 15, characterized in that The step of generating a protective adhesive layer on a side of the plurality of light-emitting units away from the substrate comprises: Generating a protective glue material layer on a side of the plurality of light-emitting units away from the substrate, wherein the protective glue material layer includes a photochromic material at positions corresponding to the light-transmitting area and the light-shielding area; Light is irradiated on the position of the protective adhesive material layer corresponding to the light-shielding area to form the protective adhesive layer including the light-transmitting area and the light-shielding area.

17. A method for driving a display panel, characterized in that: The display surface includes a display area and a non-display area; The display panel further includes: substrate; A plurality of light-emitting units are located on one side of the substrate and are all located in the display area; A protective adhesive layer, located on a side of the plurality of light-emitting units away from the substrate, the protective adhesive layer comprising a light-transmitting area and a light-shielding area, the protective adhesive layer comprising electrochromic materials in both the light-transmitting area and the light-shielding area, and the light-transmitting area and the light-shielding area of ​​the protective adhesive layer being insulated from each other; In a direction perpendicular to the plane of the substrate, the light-transmitting area covers the plurality of light-emitting units, and the light-shielding area covers at least a portion of the non-display area; The method comprises: During the display process of the display panel, power is supplied to the light-shielding area of ​​the protective rubber layer, so that the light transmittance of the protective rubber layer in the light-transmitting area is greater than the light transmittance of the protective rubber layer in the light-shielding area.

18. A display device, characterized in that: A display panel comprising any one of claims 1 to 14.

Images