Patent ID: 12256608

DETAILED DESCRIPTION

To facilitate a better understanding of the present application, a description of the present application is provided below with reference to the drawings. The drawings illustrate embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein.

To ensure that the region provided with a photosensitive device in a display panel has sufficient light transmission rate, transparent anodes on a planarization layer in this region is needed. The transparent anodes are formed after the magnetron sputtering process and the etching process on the entire surface of the display panel. However, after this step, the material of transparent anodes is also formed on a planarization layer in a normal display region not provided with the photosensitive device, and the sputtering film forming process for forming the transparent anodes will affect physical and chemical characteristics of the surface of the planarization layer in the normal display region. As a result, when anodes in the normal display region are deposited on the planarization layer, a migration phenomenon of the anodes in the normal display region exists, which affects light emission characteristics of light-emitting structures in the normal display region, and then affects the display effect of the normal display region of the display panel.

In the embodiments of the present application, at least one isolation structure is disposed in the first display region, each of the at least one isolation structure is disposed and conductively connected between the anode of a corresponding one of the a plurality of light-emitting structures and a corresponding one of the a plurality of pixel driver circuits, and in the opening region of each of the a plurality of light-emitting structures, each of the at least one isolation structure covers the anode of the corresponding one of the a plurality of light-emitting structures along a first direction perpendicular to the display panel. In this way, the opening regions of the a plurality of light-emitting structures achieve effective isolation between anodes and a planarization layer in the first display region via the at least one isolation structure, and the problem is avoided that the manufacturing process of anodes in a second display region causes the change of physical and chemical characteristics of the surface of the planarization layer in the first display region, thereby causing abnormal migration of anodes in positions of the opening regions of the light-emitting structures and above the planarization layer. Further, the impact of the change of the physical and chemical characteristics of the surface of the planarization layer in the first display region on light emission characteristics of the light-emitting structures in the first display region is avoided, the light emission effect of the light-emitting structures in the first display region is optimized, and thus the display effect of the first display region of the display panel is optimized.

FIG.1is a top structural view of a display panel according to an embodiment of the present application, andFIG.2is a sectional structural view of a display panel according to an embodiment of the present application. Referring toFIGS.1and2, the display panel includes a first display region AA1and a second display region AA2. The first display region AA1is disposed around at least a portion of the second display region AA2. InFIG.1, exemplarily, the first display region AA1is disposed around the second display region AA2. The second display region AA2is correspondingly provided with a photosensitive device, and the photosensitive device is configured to collect light through the second display region AA2. For example, the photosensitive device may be a photosensitive device such as a camera photosensitive device or a fingerprint recognition sensor. The second display region AA2is the region disposed corresponding to the photosensitive device. The region can not only achieve the display function, but also has enough light transmission rate to ensure the accuracy of photosensitive recognition by the photosensitive device. The first display region AA1is a normal display region in the display panel and is used to achieve the normal display of the region not provided with the photosensitive device.FIG.1only exemplarily shows the position of the second display region AA2in the display panel, and the embodiments of the present application do not limit the position of the second display region AA2in the display panel.

The display panel includes an array substrate1and a plurality of light-emitting structures2located on the array substrate1and disposed in the first display region AA1and the second display region AA2. The light-emitting structures2may be organic light-emitting structures. The array substrate1is provided with a plurality of pixel driver circuits3. The plurality of light-emitting structures2are disposed in one-to-one correspondence with the a plurality of pixel driver circuits3. Each pixel driver circuit3provides a drive current to the corresponding light-emitting structure2, the light-emitting structure2emits light in response to the drive current, and the display panel achieves the display function.

The display panel includes at least one isolation structure5. Each isolation structure5is disposed in the first display region AA1and located on a side, facing towards a corresponding pixel driver circuit3, of an anode4of a corresponding one of at least one light-emitting structure2disposed in the first display region AA1, and an anode4of each of at least one light-emitting structure2is electrically connected to the corresponding pixel driver circuit3through a corresponding isolation structure5. Each light-emitting structure2includes an anode4, a cathode (not shown inFIG.2) and a light-emitting functional layer (not shown inFIG.2) located between the anode4and the cathode. The light-emitting functional layer is located on an opening region a1of each light-emitting structure2, that is, the region of the light-emitting structure2where light is actually emitted is the opening region a1of the light-emitting structure2. In the opening region a1of each light-emitting structure2, along a direction perpendicular to the display panel, the isolation structure5corresponding to the each light-emitting structure2covers the anode4of the each light-emitting structure2, that is, the region where the isolation structure5is located covers the region where the anode4is located.

Referring toFIG.1andFIG.2, the array substrate1further includes a planarization layer located between the pixel driver circuits3and the light-emitting structures2. The planarization layer8is configured to provide a relatively flat production film layer for the formation of the light-emitting structures2. To achieve full-screen display, the second display region AA2correspondingly provided with the photosensitive device may also achieve the display function. To achieve the photosensitive function of the photosensitive device disposed corresponding to the second display region AA2, for example, to achieve the camera function or fingerprint recognition function, it is necessary to ensure that the second display region AA2has sufficient light transmission rate. Therefore, at least a portion of the second display region AA2needs to be formed with transparent electrodes4a. For example, transparent anodes4aof the second display region AA2are formed on the planarization layer8.

When the transparent anodes4aare formed in the second display region AA2, the transparent anodes4aare formed after the magnetron sputtering process and the etching process on the entire surface of the display panel. Then, the planarization layer8in the first display region AA1will also be formed with the material of the transparent anodes4ain the second display region AA2, and the sputtering film forming process for forming the transparent anodes4ain the second display region AA2will affect physical and chemical characteristics of the surface of the planarization layer8in the first display region AA1. As a result, when the anodes4in the first display region AA1are deposited on the planarization layer8, a migration phenomenon of the anodes4in the first display region AA1exists. After the transparent anodes4aare formed by etching, photoresist covering the transparent anodes4aneeds to be stripped, so that the planarization layer8is completely immersed in stripper. However, the planarization layer8itself is also a kind of photoresist, so that under the impact of the stripper, physical and chemical characteristics of the surface of the planarization layer8are changed, a migration phenomenon of the anodes4in the first display region AA1exists when the anodes4in the first display panel AA1are deposited on the planarization layer8, and thus light emission characteristics of the light-emitting structures2in the first display region AA1are affected. For example, the migration of the anodes4in the first display region AA1will cause the color of the light emitted by the light-emitting structures2to become yellowish, thereby affecting the display effect of the first display region AA1of the display panel.

Referring toFIGS.1and2, in the embodiments of the present application, each isolation structure is disposed in the first display region AA1and located on a side, facing towards a corresponding pixel driver circuit3, of an anode4of a corresponding one of at least one light-emitting structure2disposed in the first display region AA1, and an anode4of each of at least one light-emitting structure2is electrically connected to the corresponding pixel driver circuit3through a corresponding isolation structure5; and in an opening region a1of the each of at least one light-emitting structure2, the each isolation structure5covers the anode4of the corresponding one of at least one light-emitting structure2along the direction perpendicular to the display panel. In this way, the opening regions a1of the light-emitting structures2achieve effective isolation between anodes4and the planarization layer8in the first display region AA1through the isolation structures5, and the problem is avoided that the manufacturing process of anodes4in the second display region AA2causes the change of physical and chemical characteristics of the surface of the planarization layer8in the first display region AA1, thereby causing abnormal migration of anodes4in positions of the opening regions a1of the light-emitting structures2and above the planarization layer8. Further, the impact of the change of the physical and chemical characteristics of the surface of the planarization layer8in the first display region AA1on light emission characteristics of the light-emitting structures2in the first display region AA1is avoided, the light emission effect of the light-emitting structures2in the first display region AA1is optimized, and thus the display effect of the first display region AA1of the display panel is optimized.

Optionally, referring toFIG.1andFIG.2, in the first display region AA1, an anode4is electrically connected to a corresponding pixel driver circuit3through a corresponding isolation structure5in a via hole a2, and in the via hole a2, each isolation structure5covers a corresponding anode4along the direction perpendicular to the display panel.

The array substrate1further includes the planarization layer8located between the pixel driver circuits3and the light-emitting structures2. In the first display region AA1, the anode4is electrically connected to the isolation structure5, and the isolation structure5is electrically connected to the corresponding pixel driver circuit3through a via hole a2penetrating the planarization layer8. In this way, the anode4of the light-emitting structure2in the first display region AA1is electrically connected to the corresponding pixel driver circuit3, and in the above-mentioned via hole a2, along the direction perpendicular to the display panel, the isolation structure5covers the corresponding anode4. For example, a bottom of the via hole a2and a sidewall of the via hole a2are each provided with a corresponding isolation structure5and an anode4of a light-emitting structure2corresponding to the corresponding isolation structure. To achieve full-screen display, the second display region AA2provided with the photosensitive device of the display panel may also achieve the display function. To achieve the photosensitive function of the photosensitive device disposed corresponding to the second display region AA2, it is necessary to ensure that the second display region AA2has sufficient light transmission rate. Therefore, at least a portion of the second display region AA2needs to be formed with transparent anodes4aand corresponding transparent traces, and the transparent anodes4aand the transparent traces of the second display region AA2are both formed after the pixel driver circuits3are formed.

When the transparent anodes4aand the transparent traces of the second display region AA2are formed, the transparent anodes4aand the transparent traces are all formed after magnetron sputtering and etching on the entire surface of the display panel. Then, source electrodes S or drain electrodes D of thin-film transistors T in the pixel driver circuits3of the first display region AA1will also be formed with the material forming the transparent anodes4aand the transparent traces in the second display region AA2, and the sputtering film forming process for forming the transparent anodes4aand the transparent traces in the second display region AA2will affect surface characteristics of the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver circuits3of the first display region AA1. For example, the film layer material of the source electrodes S or the drain electrodes D is Ti-Al-Ti, and thus the sputtering film forming process for forming the transparent anodes4aand the transparent traces in the second display region AA2will affect characteristics of the surface of the top layer Ti of the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver circuits3of the first display region AA1. As a result, when an anode4of a light-emitting structure2in the first display region AA1is subsequently deposited in a via hole a2to achieve electrical connection to a corresponding pixel driver circuit3, the surface of the anode4in the via hole a2has a relatively large surface roughness.

On the one hand, relatively large surface roughness of the anode4in the via hole a2will leads to the relatively large lap resistance between the anode4in the via hole a2and a source electrode S or a drain electrode D of a thin-film transistor T, thus affecting the signal transmission rate; in addition, the surface roughness of anodes4in different via holes a2may vary greatly, resulting in a large difference in the relatively large lap resistance between anodes4in different via holes a2and source electrode S or drain electrode D of thin-film transistor T, and affecting the display uniformity of the display panel. On the other hand, the anode4with a rough surface will cause serious diffuse reflection in the via hole a2, which affects light-emitting characteristics of the light-emitting structure2, for example, the color of the light emitted by the light-emitting structure2becomes dark, and thus the display effect of the first display region AA1of the display panel is affected.

Referring toFIGS.1and2, in the embodiments of the present application, in the first display region AA1, an anode4is electrically connected to a corresponding pixel driver circuit3through a corresponding isolation structure5in a via hole a2, and in the via hole a2, each isolation structure5covers a corresponding anode4along the direction perpendicular to the display panel. In this way, the isolation structure5in the above-mentioned via hole a2achieves effective isolation between the anode4and a source electrode S or a drain electrode D of a thin-film transistor T in a pixel driver circuit3in the first display region AA1, and the problem is avoided that the manufacturing process of the transparent anodes4aand the transparent traces in the second display region AA2causes the change of surface characteristics of source electrodes S or drain electrodes D of thin-film transistors T in the pixel driver circuits3of the first display region AA1, leading to a relatively large surface roughness of the anodes4in via holes a2, affecting the signal transmission rate and the display uniformity of the display panel, and affecting light emission characteristics of the light-emitting structures2. Further, the lap resistance between the anodes4in the via holes a2and the source electrodes S or the drain electrodes D of the thin-film transistors T, the diffuse reflection phenomenon in the via holes a2is weakened, the light-emitting effect of the light-emitting structures2in the first display region AA1is optimized, and the display effect of the first display region AA1of the display panel is further optimized. InFIG.2, exemplarily, in the first display region AA1, the anode4of each light-emitting structure2is electrically connected to a drain electrode D of a thin-film transistor T in a corresponding pixel driver circuit3, or the anode4of each light-emitting structure2is electrically connected to a source electrode S of a thin-film transistor T in a corresponding pixel driver circuit3.

Optionally, referring toFIGS.1and2, the isolation structures5may be manufactured in the same layer as anodes4of the light-emitting structures2disposed in the second display region AA2. Exemplarily, the material of the isolation structures5and the material of the anodes4of the light-emitting structures2disposed in the second display region AA2include a transparent material. Optionally, the transparent material includes indium tin oxide, and the material of the anodes4of the light-emitting structures2disposed in the second display region AA2includes a transparent material, so that the light transmission rate of the second display region AA2of the display panel is improved, and the photosensitivity of the photosensitive device disposed in the second display region AA2of the display panel is improved.

In the second display region AA2, the anodes4of the light-emitting structures2are formed on a side of the planarization layer2in the array substrate1away from the pixel driver circuits3. The isolation structures5in the first display region AA1are manufactured in the same layer as the anodes4of the light-emitting structures2in the second display region AA2, that is, the isolation structures5in the first display region AA1are similarly formed on the side of the planarization layer8in the array substrate1away from the pixel driver circuits3, so that each isolation structure in the first display region AA1covers the region where the opening region a1of a corresponding light-emitting structure2is located and covers the region where a via hole a2exposing a source electrode S or a drain electrode D of a thin-film transistor T in the first display region AA1is located. Then, an anode4of a light-emitting structure2is formed on the each isolation structure of the first display region AA1, the anode4of the light-emitting structure2is disposed in contact with the corresponding isolation structure5, so that the anode4is electrically connected to the corresponding pixel driver circuits3. In this way, the change of physical and chemical characteristics of the surface of the planarization layer8in the first display region AA1is prevented from affecting light emission characteristics of the light-emitting structures2in the first display region AA1, the lap resistance between the anodes4in via holes2and source electrodes S or drain electrodes D of thin-film transistors T, the diffuse reflection phenomenon in the via holes a2is weakened, the light-emitting effect of the light-emitting structures2in the first display region AA1is optimized, and the manufacturing process of the display panel is simplified.

Optionally, referring toFIGS.1and2, the second display region AA2includes a transparent region B1and a transition region B2. Exemplarily, the first display region AA1may be disposed around the second display region AA2, the transition region B2in the second display region AA2is disposed around the transparent region B1in the second display region AA2. The light-emitting structures2disposed in the second display region AA2are disposed in the transparent region B1and the transition region B2, that is, the transparent region B1and the transition region B2of the second display region AA2both can achieve the display function. A first part pixel driver circuits3and a second part pixel driver circuits3are both disposed on the transition region B2, the first part pixel driver circuits3correspond to a first part light-emitting structures2disposed in the transparent region B1, and the second part pixel driver circuits3correspond to a second part light-emitting structures2disposed in the transition region B2, and each of anodes4of the first part light-emitting structures2is electrically connected to, through an anode trace6, a corresponding one of the first and second pixel driver circuits3.

The photosensitive device is disposed corresponding to the transparent region B1of the second display region AA2of the display panel. The transparent region B1of the second display region AA2is not provided with pixel driver circuits3that may shield light, so that the light transmission rate of the second display region AA2is relatively high. The photosensitive device is disposed corresponding to the transparent region B1of the second display region AA2, which is beneficial to improve the photosensitivity of the photosensitive device. The pixel driver circuits3disposed in the transition region B2not only provide drive currents to corresponding light-emitting structures2in the transition region B2, but also provide drive currents to corresponding light-emitting structures2in the transparent region B1. That is, pixel driver circuits3corresponding to the light-emitting structures2disposed in the transition region B2and pixel driver circuits3corresponding to the light-emitting structures2disposed in the transparent region B1are all disposed in the transition region B2, thus an anode trace6is required to achieve the electrical connection between each of anodes4of the light-emitting structures2disposed in the transparent region B1and a corresponding pixel driver circuit3disposed in the transition region B2. Then, the anodes4in the transparent region B1receive drive currents provided by the corresponding pixel driver circuits3disposed in the transition region B2to achieve the display function of the transparent region B1.

Optionally, referring toFIGS.1and2, contacting structures7are disposed in the transparent region B1. The contacting structures7are manufactured in the same layer as source electrodes and drain electrodes (that is, the source electrodes S and the drain electrodes D of the thin-film transistors) of thin-film transistors T in the pixel driver circuits3, and an anode4disposed in the transparent region B1is electrically connected to a corresponding contacting structure7through a via hole a3. Each light-emitting structure2disposed in the transparent region B1is electrically connected to a corresponding pixel driver circuit3disposed in the transition region B2through the anode trace6which is lapped on the corresponding contacting structure7and is wired to the transition region B2.

As the resolution of the display panel increases, the number of light-emitting structures2in the first display region AA1and the number of light-emitting structures2in the second display region AA2of the display panel increase, and the number of light-emitting structures2in the transparent region B1of the second display region AA2also increases, that is, anodes4in the transparent region B1are arranged more and more closely. However, the anode4of each light-emitting structure2in the transparent region B1needs to be electrically connected to a corresponding pixel driver circuit3in the transition region B2, so that it is difficult to leave extra space for the anode4in the film layer where the anodes4of the transparent region B1are located to be wired to the transition region B2and electrically connected to the corresponding pixel driver circuit3. To solve this problem, a corresponding anode trace6may be disposed in other film layers of the transparent region B1to connect each anode4in the transparent region B1and a corresponding pixel driver circuit3in the transition region B2.

In the embodiments of the present application, contacting structures7are disposed in the second display region AA2, an anode4disposed in the second display region AA2is electrically connected to a corresponding contacting structure7through a via hole a3, and an anode trace6is lapped on the contacting structure7and is wired to the transition region B2to be electrically connected to a corresponding pixel driver circuit3. The contacting structures7may be manufactured in the same layer as source electrodes and drain electrodes of thin-film transistors T in the pixel driver circuits3, that is, the anode4of a light-emitting structure2in the transparent region B1is first connected to a contacting structure7manufactured in the same layer as the source electrodes S and the drain electrodes D of the thin-film transistors T through a via hole a3penetrating the planarization layer8; the anode trace6is lapped on the contacting structure7, that is, the anode trace6is electrically connected to the contacting structure7, and the anode trace6is wired to the transition region B2to be electrically connected to the corresponding pixel driver circuit3in the transition region B2; therefore, it is achieved that the anode4in the transparent region B1is electrically connected to the corresponding pixel driver circuit3in the transition region B2.

Exemplarily, the material of the anode trace6includes a transparent material. Optionally, the transparent material includes indium tin oxide. The anode trace6is at least partially located in the transparent region B1. The material of the anode trace6includes a transparent material, so that the light transmission rate of the transparent region B1of the second display region AA2of the display panel is improved, and the photosensitivity of the photosensitive device disposed corresponding to the transparent region B1of the second display region AA2of the display panel is improved. The contacting structures7are manufactured in the same layer as the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver circuits3, so that the manufacturing process of the display panel is simplified, and at the same time, the resistance when the contacting structures7are provided is smaller than the resistance when no contacting structure is provided and the anode4in the transparent region B1is directly connected to the anode trace6. In this way, the impedance of the electrical connection line between the anode4and the anode trace6in the transparent region B1is reduced, and the signal transmission rate of the above-mentioned electrical connection line is improved.

FIG.3is a sectional structural view of a display panel during a formation process of an anode trace according to an embodiment of the present application, andFIG.4is a sectional structural view of a display panel before an anode of a transparent region B1form according to an embodiment of the present application. Referring toFIGS.1and3, the anode trace6is formed after the source electrodes S and the drain electrodes D of the thin-film transistors T in the pixel driver circuits3are formed. The anode trace6is formed by sputtering indium tin oxide (ITO) material, and ITO1inFIG.3represents the material of the anode trace6formed by sputtering. Since the anode trace6needs to be formed after magnetron sputtering and etching on the entire surface of the entire display panel, the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver transistors3of the first display region AA1will also be form with the material of the anode trace6in the second display region AA2, and the sputtering film forming process for forming the anode trace6will affect surface characteristics of the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver circuits3of the first display region AA1.

Referring toFIGS.1,2and4, the anodes4of the second display region AA2are formed after the planarization layer8in the array substrate1is formed and are formed after corresponding thin-film transistors T are formed with via holes for exposing source electrodes S or drain electrodes D of the thin-film transistors T. The anodes4of the second display region AA2are formed by sputtering the ITO material, and ITO2inFIG.4represents the material of the anodes4in the second display region AA2formed by sputtering. Similarly, since the anodes4of the second display region AA2need to be formed after magnetron sputtering and etching on the entire surface of the entire display panel, the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver transistors3of the first display region AA1will also be form with the material of the anodes4in the second display region AA2, and the sputtering film forming process for forming the anodes4will affect surface characteristics of the source electrodes S or the drain electrodes D of the thin-film transistors T in the pixel driver circuits3of the first display region AA1. As a result, when the anode4of a light-emitting structure2in the first display region AA1is subsequently deposited in a via hole a2to achieve electrical connection to a corresponding pixel driver circuit3, the surface of the anode4in the via hole a2has a relatively large surface roughness, thus the signal transmission rate and the display uniformity of the display panel are affected, and light emission characteristics of the light-emitting structure2are affected.

In the embodiments of the present application, in the first display region AA1, an anode4is electrically connected to a corresponding pixel driver circuit3through a corresponding isolation structure5in a via hole a2, and in the via hole a2, each isolation structure5covers a corresponding anode4along the direction perpendicular to the display panel. In this way, the isolation structure in the above-mentioned via hole a2achieves effective isolation between the anode4in the first display region AA1and a source electrode or a drain electrode of a thin-film transistor T in a pixel driver circuit3, the lap resistance between the anode4in the via hole2and the source electrode or the drain electrode of the thin-film transistor T, the diffuse reflection phenomenon in the via hole a2is weakened, the light-emitting effect of the light-emitting structure2in the first display region AA1is optimized, and the manufacturing process of the display panel is simplified.

Referring toFIGS.1,2and4, the anodes4of the second display region AA2are formed after the planarization layer8in the array substrate1is formed and are formed after corresponding thin-film transistors T are formed with via holes for exposing source electrodes S or drain electrodes D of the thin-film transistors T. The formation of the anodes4in the second display region AA2also leads to the material of the anodes4in the second display region AA2forming on the planarization layer8in the first display region AA1, and the sputtering film forming process for forming the anodes4of the second display region AA2will affect physical and chemical characteristics of the planarization layer8in the first display region AA1. As a result, when the anode4of a light-emitting structure2in the first display region AA1is subsequently deposited in a via hole a2, migration of the anodes4in the first display region AA1exists, which affects light emission characteristics of the light-emitting structures2in the first display region AA1and thus affects the display effect of the first display region AA1of the display panel.

In the embodiments of the present application, each isolation structure5is disposed in the first display region AA1and located on a side, facing towards a corresponding pixel driver circuit3, of an anode4of a corresponding one of at least one light-emitting structure2disposed in the first display region AA1, and an anode4of each of at least one light-emitting structure2is electrically connected to the corresponding pixel driver circuit3through a corresponding isolation structure5; and in an opening region a1of the each of at least one light-emitting structure2, the each isolation structure5covers the anode4of the corresponding one of at least one light-emitting structure2along the direction perpendicular to the display panel. In this way, opening regions a1of the light-emitting structures2achieve effective isolation between anodes4and the planarization layer8in the first display region AA1through the isolation structures5, the light emission effect of the light-emitting structures2in the first display region AA1is optimized, and thus the display effect of the first display region AA1of the display panel is optimized.

Optionally, referring toFIGS.1and2, the thickness of the isolation structures5may be greater than or equal to 320 angstroms and be less than or equal to 400 angstroms. Considering the resistance of electrical connection lines between the anodes4of the light emitting structures2in the first display region AA1and corresponding pixel driver circuits3and to accommodate the thickness of the isolation structures5manufactured in the same layer as the anodes4in the second display region AA2and the thickness of the anodes4in the second display region AA2, the thickness of the isolation structures5is greater than or equal to 320 angstroms and is less than or equal to 400 angstroms.

Optionally, referring toFIGS.1and2, along a direction parallel to the display panel, in the first display region AA1, an edge d of the anode4is 0.6 microns longer than or equal to an edge of the corresponding isolation structure5, or is 1.2 microns less than or equal to the edge of the corresponding isolation structure5. Exemplarily, the film structure of an anode4in the first display region AA1may be an ITO/Argentum (Ag)/ITO film structure. Therefore, wet etching is adopted to pattern the anode4in the first display region AA1. During the process of wet etching the anode4in the first display region AA1, a phenomenon that the anode4in the first display region AA1shrinks inward along the direction parallel to the display panel may exist. The structure that really affects characteristics of the light-emitting structure2in the first display region AA1and the signal transmission of the anode4is the portion where the anode4of the light-emitting structure2in the first display region AA1disposed along the direction perpendicular to the display panel and corresponding to the opening region a1in the first display region AA1overlapping a corresponding isolation structure5. Therefore, the edge of the anode4in the first display region AA1is 0.6 microns longer than or equal to the edge of the corresponding isolation structure5, or is 1.2 microns less than or equal to the edge of the corresponding isolation structure5, that is, a margin greater than or equal to 0.6 microns or less than or equal to 1.2 microns is left for the inward shrinkage of the anode4in the first display region AA1, so that even if the anode4in the first display region AA1shrinks inward, the corresponding opening region a1in the first display region AA1is still provided with the anode4of the light-emitting structure2in the first display region AA1overlapping the corresponding isolation structure5, and light emission characteristics of the light-emitting structure2are optimized.

The embodiments of the present application further provide a display apparatus.FIG.5is a sectional structural view of a display apparatus according to an embodiment of the present application. As shown inFIG.1, the display apparatus includes the display panel10described in the above embodiments. The display apparatus may further include a device body9, the display panel10covers the device body9and is connected to the device body9. Arrows inFIG.5indicate the incident direction of external light.

Referring toFIGS.1and5, the display body9in the display apparatus has a device region C. The device region C is located below the second display region AA2of the display panel10. More accurately, the device region C is located below the transparent region B1of the second display region AA2of the display panel10. The device region C is provided with the photosensitive device configured to collect light through the second display region AA2. The photosensitive device may be a photosensitive device such as a camera and a light sensor, which can perform operations such as collecting external light through the second display region AA2. Exemplarily, the display apparatus may be a digital apparatus such as a mobile phone, a tablet, a palmtop computer, or an internet portable audio device like an iPod.