Patent Description:
Along with rapid development of display devices, users have higher and higher requirements for screen-to-body ratios. Since elements such as cameras, sensors and receivers have to be mounted on the top of a screen, a holing area is usually reserved on the top of the screen for mounting these elements so as to realize a high screen-to-body ratio in the related art. Among the prior art, related display panels and methods for manufacturing the same are disclosed in <CIT>, <CIT> and <CIT>.

The present disclosure provides a method for manufacturing a display panel to solve shortcomings of the related art.

According to a first aspect of the implementations of the present disclosure, provided is a method for manufacturing a display panel. The display panel includes a display area, a holing area and an isolation area, and the isolation area is disposed between the display area and the holing area, and the isolation area at least partially surrounds the holing area. The method includes:.

According to a second aspect of the implementations of the present disclosure, provided is a display panel. The display panel is obtained by using the above method for manufacturing a display panel.

According to a third aspect of the implementations of the present disclosure, provided is a display device. The display device includes: a device body including a component area; and the display panel as described above. The display panel covers the device body, and a holing area of the display panel corresponds to the component area.

As can be known from the above implementations, the first support sub-layer disposed in the holing area and the second support sub-layer disposed in the isolation area are formed in the substrate, the first blocking sub-layer is formed on the first support sub-layer and the second blocking sub-layer is formed on the grooving portion of the second support sub-layer. Then, the second blocking sub-layer is etched to expose the grooving portion, and the grooves and the isolation columns are obtained by at least etching the grooving portion, wherein the isolation columns and the grooves are distributed alternately. In this case, when an organic light-emitting material layer is evaporated, the organic light-emitting material layer will be automatically cut off at a side wall of the groove or at a side wall of the isolation column without using external force, so as to block the path of diffusion of water and oxygen, prevent water and oxygen from diffusing from the holing area to the display panel, avoid interference of external devices (for example, laser device) and reduce the costs.

The accompanying drawings, which are incorporated in and constitute a part of the present description, illustrate examples consistent with the present disclosure and serve to explain the principles of the present disclosure together with the description.

Implementations will be described in detail herein, with the illustrations thereof represented in the drawings. When the following descriptions involve the drawings, like numerals in different drawings refer to like or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

Before a method for manufacturing a display panel in the implementations of the present disclosure is introduced, a display panel in the implementations of the present disclosure will be firstly introduced below.

As shown in <FIG>, an implementation of the present disclosure provides a display panel. <FIG> is a sectional view taken along a straight line A-A in <FIG>.

As shown in <FIG>, the display panel includes a display area <NUM>, a holing area <NUM> and an isolation area <NUM>. The isolation area <NUM> is disposed between the display area <NUM> and the holing area <NUM>, and the isolation area <NUM> at least partially surrounds the holing area <NUM>. For example, when a partial boundary of the holing area <NUM> is overlapped with a partial boundary of the display area <NUM>, the isolation area <NUM> partially surrounds the holing area <NUM>; when the boundary of the holing area <NUM> is not overlapped with the boundary of the display area <NUM>, the isolation area <NUM> surrounds the holing area <NUM>.

As shown in <FIG>, the display panel includes a substrate <NUM>, a buffer layer (not shown), an isolation layer (not shown), a drive circuit layer <NUM>, a support layer <NUM>, a first dam <NUM>, a second dam <NUM>, a third dam <NUM>, an organic light-emitting material layer <NUM>, a cathode layer (not shown), a packaging layer <NUM>, a plurality of isolation columns <NUM>, an organic filling layer <NUM> and a plurality of grooves <NUM>.

The buffer layer is disposed on the substrate <NUM> and in the display area <NUM>. The isolation layer is disposed in the display area <NUM> and on the buffer layer. A material of the buffer layer can be silicon nitride, and a material of the isolation layer can be silicon oxide. The drive circuit layer <NUM> is disposed in the display area <NUM> and on the isolation layer. The drive circuit layer <NUM> can include an anode of a pixel. The support layer <NUM> is disposed on the substrate, and the support layer <NUM> is disposed in the holing area <NUM> and the isolation area <NUM>. The first dam <NUM>, the second dam <NUM> and the third dam <NUM> are disposed on the support layer <NUM> to avoid overflow of organic matter, for example, the overflow of organic matter in the organic filling layer. The organic light-emitting material layer <NUM> is disposed in the display area <NUM> and the isolation area <NUM>, one part of the organic light-emitting material layer <NUM> is disposed on the drive circuit layer <NUM>, the support layer <NUM>, the first dam <NUM>, the second dam <NUM>, the third dam <NUM> and the isolation columns <NUM>, and another part of the organic light-emitting material layer <NUM> falls into the grooves <NUM> via openings of the grooves <NUM>. The organic light-emitting material layer <NUM> is cut off at side walls of the grooves <NUM> or at side walls of the isolation columns <NUM>. A bottom surface of the groove <NUM> can be disposed in the support layer <NUM> or in an organic layer of the substrate <NUM>. An area of the bottom surface of the groove <NUM> is greater than an area of the opening of the groove <NUM>. The isolation columns <NUM> and the grooves <NUM> are distributed alternately. An area of a surface of the isolation column <NUM> away from the substrate 21is greater than an area of a bottom surface of the isolation column <NUM> close to the substrate <NUM>. The cathode layer is disposed on the organic light-emitting material layer <NUM>, the packaging layer <NUM> is disposed on the cathode layer, and the organic filling layer <NUM> is filled in an accommodation space formed by a surface of the packaging layer <NUM> away from the substrate <NUM>, so that a surface of the display panel away from the substrate <NUM> is flush.

As shown in <FIG>, the substrate <NUM> can include a first organic layer <NUM>, an inorganic layer <NUM> and a second organic layer <NUM>. The bottom surface of the groove <NUM> can be disposed in the second organic layer <NUM> of the substrate <NUM>.

As shown in <FIG>, when the isolation column <NUM> surrounds the holing area <NUM>, the isolation column <NUM> can be annular. The number of the isolation columns <NUM> is one, two or more.

In an implementation, only the first dam <NUM> can be included. In another implementation, the second dam <NUM> or the third dam <NUM> can be included. In another implementation, the first dam <NUM> and the second dam <NUM> can be included. In another implementation, the first dam <NUM> and the third dam <NUM> can be included. In another implementation, the first dam <NUM>, the second dam <NUM> and the third dam <NUM> can be included.

The above descriptions are made to the display panel in the implementations of the present disclosure. A method for manufacturing a display panel in the implementations of the present disclosure will be described below.

An implementation of the present disclosure provides a method for manufacturing a display panel. As shown in <FIG>, in this implementation, the method for manufacturing a display panel includes the following steps <NUM>-<NUM>.

At step <NUM>, a support layer is formed on a substrate, wherein the support layer is located in a holing area and an isolation area, the support layer includes a first support sub-layer and a second support sub-layer, a projection of the first support sub-layer on the substrate is located in the holing area, and a projection of the second support sub-layer on the substrate is located in the isolation area.

In this step, as shown in <FIG>, the support layer <NUM> can be formed on a part of the substrate <NUM> corresponding to the holing area and the isolation area. The support layer <NUM> includes a first support sub-layer <NUM> and a second support sub-layer <NUM>, the projection of the first support sub-layer <NUM> on the substrate <NUM> is located in the holing area <NUM>, and the projection of the second support sub-layer <NUM> on the substrate <NUM> is located in the isolation area <NUM>.

At step <NUM>, a first blocking layer is formed on the support layer, wherein the first blocking layer includes a first blocking sub-layer <NUM> and a second blocking sub-layer <NUM>, the first blocking sub-layer <NUM> is disposed on the first support sub-layer <NUM>, and the second blocking sub-layer <NUM> is disposed on a grooving portion of the second support sub-layer <NUM>.

In this step, as shown in <FIG>, the first blocking layer <NUM> is formed on the support layer <NUM>, and the first blocking layer <NUM> includes a first blocking sub-layer <NUM> and a second blocking sub-layer <NUM>. The first blocking sub-layer <NUM> is disposed on the first support sub-layer <NUM>, and the second blocking sub-layer <NUM> is disposed on the grooving portion (not shown) of the second support sub-layer <NUM>. The grooving portion of the second support sub-layer <NUM> is a part where a groove will be formed by grooving in a subsequent manufacturing process, and the grooves <NUM> can be obtained by grooving the grooving portion. Referring to <FIG> again, the first blocking layer <NUM> further includes a third blocking sub-layer <NUM>. The third blocking sub-layer <NUM> is formed on a remaining portion of the second support sub-layer <NUM> other than the grooving portion. The third blocking sub-layer <NUM>, the first blocking sub-layer <NUM> and the second blocking sub-layer <NUM> can be formed simultaneously.

At step <NUM>, the second blocking sub-layer <NUM> is etched to expose the grooving portion.

In this step, the second blocking sub-layer <NUM> is etched to obtain a structure as shown in <FIG>. After the second blocking sub-layer <NUM> is etched, the above grooving portion can be exposed.

At step <NUM>, at least the grooving portion is etched to obtain grooves and isolation columns, wherein the isolation columns and the grooves are distributed alternately.

In this step, the grooves <NUM> and the isolation columns <NUM> can be obtained by etching the above grooving portion. The structure obtained in this step is shown in <FIG>, the isolation columns <NUM> and the grooves <NUM> are distributed alternately, for example, along a direction from the holing area to the display area, the isolation columns <NUM> and the grooves <NUM> are distributed alternately. Furthermore, an area of a bottom surface of the groove <NUM> can be formed to be greater than an area of an opening of the groove <NUM>; an area of a surface of the isolation column away from the substrate <NUM> can be formed to be greater than an area of a bottom surface of the isolation column <NUM> close to the substrate <NUM>.

In the implementation, the first support sub-layer <NUM> disposed in the holing area and the second support sub-layer <NUM> disposed in the isolation area are formed in the substrate, the first blocking sub-layer <NUM> is formed on the first support sub-layer <NUM> and the second blocking sub-layer <NUM> is formed on the grooving portion of the second support sub-layer <NUM>. Then, the second blocking sub-layer is etched to expose the grooving portion, and the grooves and the isolation columns are obtained by etching at least the grooving portion, wherein the isolation columns <NUM> and the grooves <NUM> are distributed alternately. In this case, when an organic light-emitting material layer is evaporated, the organic light-emitting material layer will be automatically cut off at a side wall of the groove or at a side wall of the isolation column without using external force, so as to block the path of diffusion of water and oxygen, prevent water and oxygen from diffusing from the holing area to the display panel, avoid interference of external devices (for example, laser device) and reduce the costs.

Another implementation of the present disclosure provides a method for manufacturing a display panel. As shown in <FIG>, in this implementation, the method for manufacturing a display panel can include the following steps <NUM>-<NUM>.

At step <NUM>, a buffer layer is formed on the substrate <NUM>, wherein the buffer layer is disposed in the display area.

In this step, the buffer layer is formed on a part of the substrate <NUM> corresponding to the display area <NUM>. A material of the buffer layer can be silicon nitride.

At step <NUM>, the support layer <NUM> is formed on the substrate <NUM>, wherein the support layer <NUM> is disposed in the holing area <NUM> and the isolation area <NUM>; an isolation layer is formed on the buffer layer, wherein the isolation layer is disposed in the display area.

In this step, the support layer <NUM> can be formed on a part of the substrate <NUM> corresponding to the holing area <NUM> and the isolation area <NUM>. In addition, the isolation layer is formed on a part of the substrate <NUM> corresponding to the display area. The support layer <NUM> and the isolation layer are formed in a same manufacturing process. A material of the support layer can be silicon oxide, and a material of the isolation layer can be silicon oxide. Because the support layer <NUM> and the isolation layer can be formed in a same manufacturing process, production steps and costs can be reduced.

In this implementation, the first dam <NUM>, the second dam <NUM> and the third dam <NUM> can be further formed on the support layer <NUM>. When the isolation area <NUM> surrounds the holing area <NUM>, the first dam <NUM>, the second dam <NUM> and the third dam <NUM> can be annular.

At step <NUM>, the drive circuit layer is formed on the isolation layer, wherein the drive circuit layer is disposed in the display area.

In this step, as shown in <FIG>, the drive circuit layer <NUM> can be formed on the isolation layer, and the drive circuit layer <NUM> is disposed in the display area <NUM>. A surface of the drive circuit layer <NUM> away from the substrate <NUM> is flush with a surface of the support layer <NUM> away from the substrate <NUM>.

At step <NUM>, a first blocking layer is formed on the support layer, and a second blocking layer is formed on the drive circuit layer, wherein the first blocking layer includes a first blocking sub-layer, a second blocking sub-layer and a third blocking sub-layer.

In this step, as shown in <FIG>, the first blocking layer <NUM> can be formed on the support layer <NUM>, and the second blocking layer <NUM> can be formed on the drive circuit layer <NUM>, wherein the first blocking layer <NUM> includes the first blocking sub-layer <NUM>, the second blocking sub-layer <NUM> and the third blocking sub-layer <NUM>.

In this implementation, a surface of the second blocking layer <NUM> away from the substrate <NUM> is flush with a surface of the first blocking layer <NUM> away from the substrate <NUM>.

In this implementation, a material of the first blocking layer <NUM> is indium tin oxide (ITO), indium gallium oxide (IGO), or indium gallium zinc oxide (IGZO).

In this implementation, a material of the second blocking layer <NUM> is indium tin oxide, indium gallium oxide or indium gallium zinc oxide.

Preferably, the material of the second blocking layer <NUM> is same as the material of the first blocking layer <NUM>, and the second blocking layer <NUM> and the first blocking layer <NUM> are formed in a same manufacturing process. Because the second blocking layer and the first blocking layer are formed in a same manufacturing process, production steps and costs can be reduced. At step <NUM>, the second blocking sub-layer is etched to expose the grooving portion.

In this step, the structure shown in <FIG> can be obtained by etching the second blocking sub-layer <NUM>. After the second blocking sub-layer <NUM> is etched, the above grooving portion can be exposed.

In this implementation, the second blocking sub-layer <NUM> can be wet etched, and composition of acid used for wet etching can include phosphoric acid. In another implementation, the composition of the acid used for wet etching can include oxalic acid. In another implementation, the composition of the acid used for wet etching can include acetic acid. In another implementation, the composition of the acid used for wet etching can include oxalic acid and acetic acid. In another implementation, the composition of the acid used for wet etching can include phosphoric acid, oxalic acid and acetic acid. In one word, the composition of the acid used for wet etching can include at least one of phosphoric acid, oxalic acid and acetic acid.

In this implementation, as shown in <FIG>, before step <NUM>, the following steps <NUM>-<NUM> may be performed.

At step <NUM>, a positive photoresist is coated on the first blocking layer.

At step <NUM>, a mask is placed on the positive photoresist, wherein the mask includes a first light-transmitting area, and the second blocking sub-layer corresponds to the first light-transmitting area.

At step <NUM>, the positive photoresist corresponding to the first light-transmitting area is removed by performing exposure and developing for the positive photoresist corresponding to the first light-transmitting area to expose the second blocking sub-layer.

In this implementation, a positive photoresist can also be coated on the second blocking layer <NUM>, and coating the positive photoresist on the second blocking layer <NUM> and coating the positive photoresist on the first blocking layer <NUM> are completed in a same manufacturing process. The positive photoresist coated on the second blocking layer <NUM> corresponds to a non-light-transmitting area of the mask.

In step <NUM>, grooves and isolation columns are obtained by etching the grooving portion.

In this step, the grooves <NUM> and the isolation columns <NUM> can obtained by etching the grooving portion of the second support sub-layer <NUM> and the second organic layer <NUM> in the substrate. The structure obtained in this step is as shown in <FIG>.

In this implementation, as shown in <FIG>, the step <NUM> can include the following steps <NUM>-<NUM>.

At step <NUM>, the grooving portion of the second support sub-layer is dry etched by using a first mixed gas mixed by a first gas and a second gas, wherein a composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM>-<NUM>:<NUM>.

For example, the composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM>, or, the composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM>, or, the composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM>.

In the claimed invention, the first gas includes at least one of carbon tetrafluoride (CF<NUM>) and sulfur tetrafluoride (SF<NUM>), and the second gas is oxygen. For example, the first gas includes carbon tetrafluoride, or the first gas includes sulfur tetrafluoride, or the first gas includes carbon tetrafluoride and sulfur tetrafluoride.

In this step, an area of the bottom surface of the groove is made to be greater than an area of the opening of the groove by controlling a parameter of the etching process.

At step <NUM>, a part of the organic layer of the substrate corresponding to the grooving portion is dry etched by using a second mixed gas mixed by the first gas and the second gas, wherein a composition ratio of the first gas to the second gas in the second mixed gas is <NUM>:<NUM>-<NUM>: <NUM>.

For example, the composition ratio of the first gas to the second gas in the second mixed gas is <NUM>:<NUM>, or the composition ratio of the first gas to the second gas in the second mixed gas is <NUM>:<NUM>, or the composition ratio of the first gas to the second gas in the second mixed gas is <NUM>: <NUM>.

In this step, when the part of the organic layer of the substrate corresponding to the grooving portion is dry etched by using the second mixed gas with the composition ratio of the first gas to the second gas being <NUM>:<NUM>-<NUM>: <NUM>, the second support sub-layer can be protected.

In this implementation, a power for dry etching is <NUM>-10000watts. For example, the power for dry etching can be <NUM> watts, or <NUM> watts, or <NUM> watts.

At step <NUM>, an array substrate is obtained by etching the first blocking sub-layer, the third blocking sub-layer and the second blocking layer.

In this step, the first blocking sub-layer, the third blocking sub-layer and the second blocking layer are wet etched.

Preferably, composition of acid used for wet etching can include at least one of phosphoric acid, oxalic acid and acetic acid. Specifically, in an implementation, the composition of the acid used for wet etching can include oxalic acid. In another implementation, the composition of the acid used for wet etching can include acetic acid. In another implementation, the composition of the acid used for wet etching can include oxalic acid and acetic acid. In another implementation, the composition of the acid used for wet etching can include phosphoric acid, oxalic acid and acetic acid. Since the composition of the acid used for wet etching includes at least one of phosphoric acid, oxalic acid and acetic acid, damage to an anode in the drive circuit layer can be prevented.

In this step, the array substrate obtained is as shown in <FIG>.

The shape of the isolation column is not limited to inverted trapezoid shown in <FIG>, and can also be shaped like T or a horizontal H.

At step <NUM>, an organic light-emitting material layer is formed on the array substrate.

In this step, the organic light-emitting material layer <NUM> can be formed by evaporating the organic light-emitting material on the array substrate.

At step <NUM>, a cathode layer is formed on the organic light-emitting material layer.

In this step, the cathode layer can be formed on the organic light-emitting material layer <NUM>. In this implementation, a material of the cathode layer can be a magnesium-silver alloy, a magnesium-aluminum alloy, a lithium-aluminum alloy and the like, or a single metal such as magnesium, aluminum, lithium or silver, which is not limited herein.

At step <NUM>, a packaging layer is formed on the cathode layer.

In this step, the packaging layer <NUM> can be formed on the cathode layer. As shown in <FIG>, the packaging layer <NUM> can include first organic packaging layer <NUM>, an inorganic packaging layer <NUM>, and a second organic packaging layer <NUM>.

After step <NUM>, a hole can be obtained in the holing area <NUM>, and then the display panel as shown in <FIG> can be obtained.

Another implementation of the present disclosure provides a method for manufacturing a display panel. As shown in <FIG>, in this implementation, the method for manufacturing a display panel includes the following steps <NUM>-<NUM>.

At step <NUM>, a buffer layer is formed on the substrate, wherein the buffer layer is disposed in the display area; a support layer is formed on the substrate, wherein the support layer is disposed in the holing area and the isolation area.

In this step, the buffer layer is formed on the substrate <NUM>, wherein the buffer layer is disposed in the display area, and the material of the buffer layer can be silicon nitride. At the same time, the support layer is formed on the substrate <NUM>, wherein the support layer is disposed in the holing area <NUM> and the isolation area <NUM>.

Preferably, the material of the support layer is same as the material of the buffer layer. The support layer and the buffer layer are formed in a same manufacturing process. Because the support layer and the buffer layer are formed in a same manufacturing process, production steps and costs can be reduced.

At step <NUM>, an isolation layer is formed on the buffer layer, wherein the isolation layer is disposed in the display area.

In this step, the isolation layer can be formed on the buffer layer, and the material of the isolation layer can be silicon oxide.

At step <NUM>, a drive circuit layer is formed on the isolation layer, wherein the drive circuit layer is disposed in the display area.

In this step, the drive circuit layer <NUM> can be formed on the isolation layer, and a surface of the drive circuit layer <NUM> away from the substrate <NUM> is flushed with a surface of the support layer <NUM> away from the substrate <NUM>.

At step <NUM>, a first blocking layer is formed on the support layer, a second blocking layer is formed on the drive circuit layer, wherein the first blocking layer includes a first blocking sub-layer, a second blocking sub-layer and a third blocking sub-layer.

The step <NUM> in this implementation is similar to the above step <NUM> and thus will not be redundantly described.

At step <NUM>, the second blocking sub-layer is etched to expose a grooving portion, and the first blocking sub-layer is etched.

In this step, the second blocking sub-layer <NUM> and the first blocking sub-layer <NUM> can be etched at the same time, that is, the first blocking sub-layer <NUM> and the second blocking sub-layer <NUM> are etched in a same manufacturing process.

In this implementation, the second blocking sub-layer <NUM> and the first blocking sub-layer <NUM> can be wet etched, and composition of acid used for wet etching can include at least one of phosphoric acid, oxalic acid and acetic acid.

In this implementation, as shown in <FIG>, before step <NUM>, the following steps <NUM>-<NUM> can be included.

At step <NUM>, a mask is placed on the positive photoresist, wherein the mask includes a first light-transmitting area and a second light-transmitting area, the second blocking sub-layer corresponds to the first light-transmitting area and the first blocking sub-layer corresponds to the second light-transmitting area.

At step <NUM>, the positive photoresist corresponding to the first light-transmitting area and the second light-transmitting area is removed by performing exposure and developing for the positive photoresist corresponding to the first light-transmitting area and the second light-transmitting area to expose the second blocking sub-layer and the first blocking sub-layer.

In this implementation, the positive photoresist can also be coated on the second blocking layer <NUM>, and coating the positive photoresist on the second blocking layer <NUM> and coating the positive photoresist on the first blocking layer <NUM> are completed in a same manufacturing process. The positive photoresist coated on the second blocking layer <NUM> corresponds to a non-light-transmitting area of the mask. The mask includes the first light-transmitting area and the second light-transmitting area, the second blocking sub-layer corresponds to the first light-transmitting area and the first blocking sub-layer corresponds to the second light-transmitting area. The positive photoresist corresponding to the first light-transmitting area and the second light-transmitting area can be removed by performing exposure and developing for the positive photoresist corresponding to the first light-transmitting area and the second light-transmitting area to expose the second blocking sub-layer and the first blocking sub-layer, thus facilitating subsequent etch.

At step <NUM>, grooves and isolation columns are obtained by etching the grooving portion.

In this implementation, only for a part of the second blocking sub-layer corresponding to the grooving portion can be dry etched.

In this step, the part of the second blocking sub-layer corresponding to the grooving portion can be dry etched by using a first mixed gas mixed by a first gas and a second gas, wherein a composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM>.

In this implementation, a power for dry etching is <NUM> watts.

At step <NUM>, an array substrate is obtained by etching the third blocking sub-layer and the second blocking layer.

In this step, the array substrate shown in <FIG> can be obtained by wet etching the third blocking sub-layer and the second blocking layer. Composition of acid used for wet etching can include at least one of phosphoric acid, oxalic acid and acetic acid. Since the composition of the acid used for wet etching includes at least one of phosphoric acid, oxalic acid and acetic acid, damage to an anode in the drive circuit layer can be prevented.

The steps <NUM>-<NUM> in this implementation are similar to the steps <NUM>-<NUM> of the above implementations and thus will not be repeated herein.

At step <NUM>, an organic filling layer is formed on the packaging layer.

In this implementation, because a surface of the packaging layer away from the substrate <NUM> is uneven, an organic adhesive can be filled on the packaging layer <NUM> to form the organic filling layer <NUM>. Because an accommodation space formed by the surface of the packaging layer away from the substrate is filled with the organic filling layer, damage to the grooves by subsequent manufacturing steps can be avoided. Furthermore, breakage of wires in the subsequent manufacturing steps can be avoided and poor bubbling is also prevented.

In the above implementation, the material of the support layer is silicon nitride or silicon oxide. In another implementation, the material of the support layer can be a metal. For example, the material of the support layer can be a sandwich structure of titanium-aluminum-titanium, or a sandwich structure of molybdenum-aluminum-molybdenum. The drive circuit layer <NUM> can include a wire-connecting layer which is a sandwich structure of titanium-aluminum-titanium or a sandwich structure of molybdenum-aluminum-molybdenum. The support layer and the wire-connecting layer can be formed in a same manufacturing process.

An implementation of the present disclosure further provides a display device including a device body and the display panel according to any one above implementation.

The device body includes a component area where at least one electronic component is disposed. The display panel covers the device body, and the electronic component is embedded into a hole formed in the holing area.

In an implementation, the above electronic component can include at least one of distance sensor, microphone, loudspeaker, flash light, pixel camera, infrared camera, flood light sensing element, ambient light sensor and dot projector, which is not limited herein.

The display device in the implementation can be any product or component having display function such as electronic paper, mobile phone, tablet computer, TV, laptop computer, digital photo frame or navigator.

Claim 1:
A method for manufacturing a display panel, wherein the display panel comprises a display area (<NUM>), a holing area (<NUM>) and an isolation area (<NUM>), and the isolation area (<NUM>) is disposed between the display area (<NUM>) and the holing area (<NUM>), and the isolation area (<NUM>) at least partially surrounds the holing area (<NUM>), wherein the method comprises:
forming (<NUM>) a support layer (<NUM>) on a substrate (<NUM>), wherein the support layer (<NUM>) is disposed in the holing area (<NUM>) and the isolation area (<NUM>), the support layer (<NUM>) comprises a first support sub-layer (<NUM>) and a second support sub-layer (<NUM>), a projection of the first support sub-layer (<NUM>) on the substrate (<NUM>) is located in the holing area (<NUM>), and a projection of the second support sub-layer (<NUM>) on the substrate (<NUM>) is located in the isolation area (<NUM>);
forming (<NUM>) a first blocking layer (<NUM>) on the support layer (<NUM>), wherein the first blocking layer (<NUM>) comprises a first blocking sub-layer (<NUM>) and a second blocking sub-layer (<NUM>), the first blocking sub-layer (<NUM>) is disposed on the first support sub-layer (<NUM>), and the second blocking sub-layer (<NUM>) is disposed on a grooving portion of the second support sub-layer (<NUM>);
etching (<NUM>) the second blocking sub-layer (<NUM>) to expose the grooving portion;
at least etching (<NUM>) the grooving portion to obtain grooves (<NUM>) and isolation columns (<NUM>), wherein the isolation columns (<NUM>) and the grooves (<NUM>) are distributed alternately, wherein at least etching the grooving portion to obtain the grooves (<NUM>) and the isolation columns (<NUM>) comprises:
dry etching the grooving portion of the second support sub-layer (<NUM>) by using a first mixed gas mixed by a first gas and a second gas, wherein a composition ratio of the first gas to the second gas in the first mixed gas is <NUM>:<NUM> -<NUM>:<NUM>;
the substrate (<NUM>) comprising an organic layer, and
dry etching the grooving portion corresponding to the organic layer of the substrate (<NUM>) by using a second mixed gas mixed by the first gas and the second gas, wherein a composition ratio of the first gas to the second gas in the second mixed gas is <NUM>:<NUM>-<NUM>:<NUM>, and wherein the first gas comprises at least one of carbon tetrafluoride (CF<NUM>) and sulfur tetrafluoride (SF<NUM>), and the second gas is oxygen.