CN109860267B - Display panel and display device - Google Patents
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- CN109860267B CN109860267B CN201910196906.8A CN201910196906A CN109860267B CN 109860267 B CN109860267 B CN 109860267B CN 201910196906 A CN201910196906 A CN 201910196906A CN 109860267 B CN109860267 B CN 109860267B
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Abstract
The invention provides a display panel, which comprises a display area and a light-transmitting area, wherein the display area surrounds the light-transmitting area; the display area includes: a substrate layer; the thin film transistor layer is arranged on the substrate layer; the organic light-emitting layer is arranged on one side of the thin film transistor layer, which is far away from the substrate layer; the packaging layer is arranged on the thin film transistor layer and the organic light-emitting layer; the light-transmitting area is provided with a through hole which penetrates through the packaging layer and penetrates to the substrate layer. The invention can combine the display panel and the camera module, i.e. the display panel and the camera module are not required to be separated into independent areas, thereby realizing real 'full screen'.
Description
Technical Field
The invention relates to the field of display panel manufacturing, in particular to a display panel and a display device.
Background
At the present stage, the display panel is rapidly developed, and the appearance of various screen technologies provides infinite possibilities for the electronic terminal. Particularly, with the rapid application of display technologies represented by OLEDs (organic light emitting diodes), various mobile terminals that use "full screen", "special screen", "sound production under screen", "fingerprint under screen", and the like as selling points are beginning to be rapidly popularized.
At present, various large mobile phone and panel manufacturers have provided a lot of products taking a 'full screen' as a selling point, but most of the products adopt the design of an approximate full screen of a 'Liuhai screen' and a 'water drop screen', because a certain area needs to be reserved for the front camera due to the existence of the front camera, the technology of the full screen cannot be achieved.
Disclosure of Invention
The present invention provides a display panel and a display device, wherein a through hole is formed in a display panel region to form a light-transmitting region. The panel and the camera module can be combined, namely, the panel and the camera module do not need to be separated into independent areas, and a real comprehensive screen is realized.
In order to solve the above technical problem, the present invention provides a display panel, including a display area and a transparent area, wherein the display area surrounds the transparent area; the display area includes: a substrate layer; the thin film transistor layer is arranged on the substrate layer; the organic light-emitting layer is arranged on one side of the thin film transistor layer, which is far away from the substrate layer; the packaging layer is arranged on the thin film transistor layer and the organic light-emitting layer; the light-transmitting area is provided with a through hole which penetrates from the packaging layer to the substrate layer.
Furthermore, the through hole is provided with a hole wall, and a reflective layer is arranged on the hole wall.
Further, the substrate layer comprises: a first substrate layer; a barrier layer disposed on the first substrate layer; the second substrate layer is arranged on one side, far away from the first substrate layer, of the blocking layer.
Furthermore, the display panel further comprises a first barrier block, which is arranged in the second substrate layer and surrounds the through hole; and/or the second barrier block is arranged in the packaging layer and surrounds the through hole.
Further, the first substrate layer and the second substrate layer are made of polyimide.
Further, the material of the barrier layer is silicon oxide which can block water and oxygen.
Further, the organic light emitting layer includes a red pixel unit, a green pixel unit, and a blue pixel unit.
Further, the first barrier block material is silicon oxide for blocking water and oxygen; the second barrier block is made of silicon oxide for blocking water and oxygen.
Further, the light reflecting layer is made of opaque metal materials.
The invention also provides a display device which comprises the display panel and the camera module, wherein the camera module is arranged below the substrate layer and corresponds to the through hole.
The invention has the beneficial effects that: the invention provides a display panel with an under-screen photographing function and a display device. And a camera module is arranged below the light-transmitting area to form a finished display device. The invention can combine the display panel and the camera module, i.e. the display panel and the camera module are not required to be separated into independent areas, thereby realizing real 'full screen'.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a top view of a display panel according to the present invention;
FIG. 2 is a schematic structural diagram of a display panel according to the present invention;
a display panel 100;
a display area 110; a light-transmitting region 120; a camera module 130;
a substrate layer 101; thin-film-transistor layer 102; an organic light-emitting layer 103;
an encapsulation layer 104; a first barrier block 105; a second barrier block 106;
a through-hole 107; a bore wall 108; a light-reflecting layer 109;
a first substrate layer 1011; a barrier layer 1012; a second substrate layer 1013.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Directional phrases used herein, such as, for example, upper, lower, front, rear, left, right, inner, outer, lateral, etc., refer only to the orientation of the accompanying drawings. The names of the elements, such as the first, the second, etc., mentioned in the present invention are only used for distinguishing different elements and can be better expressed. In the drawings, elements having similar structures are denoted by the same reference numerals.
Embodiments of the present invention will be described in detail herein with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided to explain the practical application of the invention and to enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides a display panel 100, which includes a display area 110 and a transparent area 120, wherein the display area 110 surrounds the transparent area 120.
The display area 110 is used for image display of the display panel 100, and the light-transmitting area 120 is used for receiving external light and performing image acquisition by the mobile phone camera.
The top view of the transparent region 120 is circular or square.
As shown in fig. 2, the display area 110 includes: a substrate layer 101, a thin film transistor layer 102, an organic light emitting layer 103, an encapsulation layer 104, a first barrier block 105, and a second barrier block 106.
The substrate layer 101 includes: a first substrate layer 1011, a barrier layer 1012, and a second substrate layer 1013.
The first substrate layer 1011 is made of polyimide, so that the first substrate layer 1011 has flexible characteristics.
The barrier layer 1012 is disposed on the first substrate layer 1011; the material of the barrier layer 1012 is silicon oxide which is a barrier to water and oxygen. The barrier layer 1012 may serve to protect the first substrate layer 1011 and may extend the lifetime of the first substrate layer 1011.
The second substrate layer 1013 is disposed on a side of the barrier layer 1012 away from the first substrate layer 1011.
The second substrate layer 1013 is made of polyimide, which can provide flexibility to the second substrate layer 1013.
The substrate layer 101 of the present invention adopts a three-layer structure design of the first substrate layer 1011, the barrier layer 1012 and the second substrate layer 1013, and in other embodiments, a single-layer substrate layer design may be adopted.
The thin-film transistor layer 102 is arranged on the substrate layer; the thin-film transistor layer 102 functions as a switch for driving the organic light emitting layer 103 to emit light.
The first blocking block 105 is disposed in the second substrate layer 1013 and surrounds the light-transmitting region 120.
The first barrier block 105 is made of silicon oxide which can isolate water and oxygen. The first barrier ribs 105 may prevent water and oxygen of the light-transmitting region 120 from entering the display region 110.
The thin-film transistor layer 102 mainly includes a metal layer and an insulating layer, and the metal layer is used to form a gate, a source, a drain, and the like of the thin-film transistor layer 102.
The insulating layer mainly insulates the gate, the source and the drain, prevents short circuit between the metal layers, and enables the thin film transistor layer 102 to safely drive the organic light emitting layer 103 to emit light.
The thin film transistors are generally amorphous silicon thin film transistors and polysilicon thin film transistors. The present invention is most preferably a polysilicon thin film transistor.
The organic light emitting layer 103 is arranged on one side of the thin film transistor layer 102 far away from the substrate layer 101; the organic light emitting layer 103 is generally obtained by evaporation, and the organic light emitting layer 103 is used for emitting light of pixels, so that the display panel 100 can be displayed in an image.
The organic light emitting layer 103 may be a layered structure of an OLED, and specifically includes an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and a cathode.
The anode is electrically connected to the thin-film transistor layer 102 and is driven by the thin-film transistor layer 102.
The hole injection layer is coated on the anode; the hole transport layer covers one side of the hole injection layer far away from the anode; the light-emitting layer covers one side of the hole transport layer far away from the hole transport layer; the electron transport layer covers one side of the light-emitting layer far away from the hole transport layer; the electron injection layer covers one side of the electron transport layer, which is far away from the light emitting layer; the cathode covers one side of the electron injection layer far away from the electron transport layer.
The organic light emitting layer 103 includes red, green, and blue pixel units. Generally, the display panel 100 has a red pixel unit, a green pixel unit, or a blue pixel unit per pixel. The color cells between adjacent pixels are different.
The thin-film transistor layer 102 further serves as a switch to drive the organic light-emitting layer 103 to display, so that the organic light-emitting layer 103 can emit different red, green or blue light.
In order to better protect the devices of the display panel 100, the display panel 100 is protected by the encapsulation layer 104 according to the present invention, because the devices of the display panel are damaged by the water and oxygen in the air.
The encapsulation layer 104 is disposed on the thin-film transistor layer 102 and the organic light-emitting layer 103; the thin film encapsulation layer 104 is formed by alternately stacking organic layers and inorganic layers.
The encapsulation layer 104 mainly functions to block water and oxygen, so as to protect the display panel 100.
The second blocking block 106 is disposed in the encapsulation layer 104 and surrounds the transparent region 120.
The second barrier block 106 is made of silicon oxide, which can isolate water and oxygen. This prevents water and oxygen in the light-transmitting region 120 from entering the display region 110.
The transparent region 120 is provided with a through hole 107, and the through hole 107 is a cylinder.
The through hole 107 penetrates through the encapsulation layer 104 to the substrate layer 101. That is, the through holes 107 form the light-transmitting regions 120 of the display panel 100. The light for the outside can enter the light-transmitting region 120.
The through hole 107 has a hole wall 108, the hole wall 108 is a side surface of the cylinder of the through hole 107, and a reflective layer 109 is disposed on the hole wall 108.
The material of the reflective layer 109 is an opaque metal material, and mainly functions to block light in the display area 110 and the through hole 107, so as to prevent the light of the display panel 100 from affecting the photographic quality of the photographic module.
Meanwhile, the light of the through hole 107 can be prevented from influencing the display quality of the display area 110; and also acts as a water oxygen barrier layer 1012 to prevent water oxygen from entering the display region 110.
In order to make the display panel 100 more useful, the present invention provides another embodiment for combining the display panel 100 with the camera module 130.
The invention also provides a display device, which comprises the display panel 100 and the camera module 130.
The display panel 100 has a display area 110 and a transparent area 120, and the display area 110 surrounds the transparent area 120.
The display area 110 is used for displaying an image. The transparent region 120 has a through hole 107 for external light to pass through and be received by the camera module 130.
The through hole 107 is a feature of forming the light-transmitting area 120, the through hole 107 has a hole wall 108, the hole wall 108 is a side surface of a light-transmitting hole cylinder, and a reflective layer 109 is disposed on the hole wall 108.
The material of the reflective layer 109 is an opaque metal material, and mainly functions to block light in the display area 110 and the through hole 107, so as to prevent the light of the display panel 100 from affecting the photographic quality of the photographic module.
When the light-transmitting region 120 is provided with the through hole 107, the hole wall 108 of the through hole 107 exposes a part of the device of the display panel 100, which also affects the service life of the display panel 100, so the light-reflecting layer 109 of the present invention can also be used as a water-oxygen barrier layer. The light reflecting layer contains a silicon oxide material for blocking water and oxygen.
The light reflecting layer 109 can also prevent the light of the through hole 107 from affecting the display quality of the surrounding display area 110; and can also be used as a water and oxygen barrier layer 1012, which acts simultaneously with the first barrier block 105 and the second barrier block 106 to prevent water and oxygen from entering the display region 110.
The camera module 130 is disposed below the substrate layer 101 and corresponds to the through hole 107. The camera module 130 is electrically connected to the display panel 100.
The light-transmitting region 120 of the display panel 100 can transmit external light. Generally, external light enters the light-transmitting region 120, a portion of the light passes through the light-transmitting region 120, and another portion of the light is reflected by the reflective layer 109 and passes through the light-transmitting region 120.
The camera module 130 can receive light from the outside through the through hole 107. And further can acquire the external image.
And then converts the external image into an electrical signal to be transmitted to the display panel 100. The display panel 100 may display the image captured by the camera module 130 in the display area 110.
The display device combines the camera module 130 with the display panel 100, and the display panel 100 and the camera module 130 do not need to be separated, so that a full screen technology is realized.
The invention provides a display panel with an under-screen photographing function and a display device, which are characterized in that holes are dug in a display panel area corresponding to a camera module 130 through the design of the existing display panel, and then a reflective layer 109 is formed on a hole wall 108 of a circular through hole 107 to form a light-transmitting area 120 of the display panel.
And a camera module 130 is disposed below the transparent region 120 to form a complete display device. The invention achieves the purpose of combining the display panel 100 and the camera module 130, namely, the display panel 100 and the camera module 130 are not required to be separated into independent areas, and a real 'full screen' is realized.
It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are intended to be illustrative of the invention and are not intended to be limiting. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (7)
1. A display panel is characterized by comprising a display area and a light-transmitting area, wherein the display area surrounds the light-transmitting area;
the display area includes:
a substrate layer;
the thin film transistor layer is arranged on the substrate layer;
the organic light-emitting layer is arranged on one side of the thin film transistor layer, which is far away from the substrate layer;
the packaging layer is arranged on the thin film transistor layer and the organic light-emitting layer;
the light-transmitting area is provided with a through hole which penetrates from the packaging layer to the substrate layer;
the through hole is provided with a hole wall, and a reflective layer is arranged on the hole wall;
wherein the substrate layer comprises:
a first substrate layer;
a barrier layer disposed on the first substrate layer;
the second substrate layer is arranged on one side, far away from the first substrate layer, of the barrier layer;
the display panel further comprises:
the first barrier block is arranged in the second substrate layer and surrounds the through hole; and/or the second barrier block is arranged in the packaging layer and surrounds the through hole.
2. The display panel according to claim 1,
the first substrate layer and the second substrate layer are made of polyimide.
3. The display panel according to claim 1, wherein the light-emitting element is a light-emitting element
The material of the barrier layer is silicon oxide for blocking water and oxygen.
4. The display panel according to claim 1,
the organic light emitting layer includes a red pixel unit, a green pixel unit, and a blue pixel unit.
5. The display panel according to claim 1,
the first barrier block is made of silicon oxide for blocking water and oxygen;
the second barrier block is made of silicon oxide for blocking water and oxygen.
6. The display panel according to claim 1,
the light reflecting layer is made of opaque metal materials.
7. A display device, comprising the display panel according to any one of claims 1 to 6 and a camera module disposed below the substrate layer and corresponding to the through hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196906.8A CN109860267B (en) | 2019-03-15 | 2019-03-15 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910196906.8A CN109860267B (en) | 2019-03-15 | 2019-03-15 | Display panel and display device |
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| CN109860267A CN109860267A (en) | 2019-06-07 |
| CN109860267B true CN109860267B (en) | 2021-07-23 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265449A (en) * | 2019-06-24 | 2019-09-20 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel and mask plate |
| US20220140040A1 (en) * | 2019-06-28 | 2022-05-05 | Boe Technology Group Co., Ltd. | Display panel, manufacturing method thereof and display device |
| CN110459694B (en) * | 2019-07-30 | 2021-11-05 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
| CN110610970A (en) * | 2019-08-29 | 2019-12-24 | 武汉华星光电半导体显示技术有限公司 | Display panel, display device and display panel preparation method |
| CN112447790B (en) * | 2019-08-30 | 2022-11-25 | 上海和辉光电股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110600516B (en) | 2019-09-10 | 2020-10-16 | 武汉华星光电半导体显示技术有限公司 | Display panel, display module and display device |
| CN110729335B (en) * | 2019-10-28 | 2022-02-01 | 武汉华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN111508368B (en) * | 2020-05-19 | 2021-11-16 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN111725267A (en) * | 2020-06-02 | 2020-09-29 | 武汉华星光电半导体显示技术有限公司 | Display panel, preparation method thereof and display device |
| CN113437124A (en) * | 2021-06-23 | 2021-09-24 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN116963556B (en) * | 2023-09-19 | 2023-12-08 | 山西高科华杰光电科技有限公司 | Display panel, display assembly and manufacturing method of display panel |
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| CN108039356A (en) * | 2017-11-21 | 2018-05-15 | 上海天马微电子有限公司 | Display panel, display device, and method for manufacturing display panel |
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| CN109148525A (en) * | 2018-08-13 | 2019-01-04 | 武汉华星光电半导体显示技术有限公司 | Organic LED display panel and preparation method thereof |
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| CN108039356A (en) * | 2017-11-21 | 2018-05-15 | 上海天马微电子有限公司 | Display panel, display device, and method for manufacturing display panel |
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