Display panel and display device

Abstract

The utility model discloses a display panel and a display device. The display panel comprises a glass substrate, a driving array layer, a light-emitting unit layer, a packaging layer and a touch control layer which are sequentially arranged in a stacked mode. The touch layer comprises a first inorganic layer, a first metal layer and a second inorganic layer; the first inorganic layer is located on the side, away from the light emitting unit layer, of the packaging layer, the first metal layer is located on the side, away from the packaging layer, of the first inorganic layer, and the second inorganic layer is located on the side, away from the first inorganic layer, of the first metal layer. According to the display panel and the display device, the display effect of the display panel can be improved, the manufacturing cost of the display panel is reduced, and the service life of the display panel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to a display panel and display device. BACKGROUND

[0002] Touch on Encap (TOE) display panel, since the way of realizing touch sensing on OLED thin film encapsulation (TFE) is adopted, it does not need to add another touch panel, has the characteristics of low cost, thin thickness, high reliability, has been widely applied.

[0003] However, the existing touch display panel has the problems of low display brightness and short service life caused by water vapor erosion, which limits the further development of the display panel. INVENTION CONTENTS

[0004] The utility model provides a kind of display panel and display device, can improve the display effect of display panel, reduce the manufacturing cost of display panel, improve the service life of display panel.

[0005] According to an aspect of the utility model, a display panel is provided, which comprises: glass substrate, drive array layer, light emitting unit layer, encapsulation layer and touch layer arranged in sequence;

[0006] The touch layer comprises first inorganic layer, first metal layer and second inorganic layer;

[0007] The first inorganic layer is located on the side of the encapsulation layer away from the light emitting unit layer, the first metal layer is located on the side of the first inorganic layer away from the encapsulation layer, and the second inorganic layer is located on the side of the first metal layer away from the first inorganic layer.

[0008] Optionally, the first metal layer comprises a plurality of arrayed self-capacitance touch electrodes.

[0009] Optionally, the touch layer further comprises a second metal layer;

[0010] The second metal layer is located on the side of the first inorganic layer close to the encapsulation layer;

[0011] The first metal layer comprises a plurality of first metal electrode channels arranged along a second direction;

[0012] The second metal layer comprises a plurality of second metal electrode channels arranged along a first direction;

[0013] The first metal electrode channel comprises a plurality of first metal electrodes arranged along the first direction;

[0014] The second metal electrode channel comprises a plurality of second metal electrodes arranged along the second direction, wherein the first direction intersects the second direction.

[0015] Optionally, the display panel provided by the embodiment further comprises a touch chip.

[0016] The touch chip is electrically connected with each self-capacitance touch electrode.

[0017] Optionally, the display panel provided by the embodiment further comprises a touch chip.

[0018] The touch chip is electrically connected with each first metal electrode channel and each second metal electrode channel.

[0019] Optionally, the light emitting unit layer comprises a plurality of light emitting units.

[0020] Each light emitting unit comprises a first electrode, a light emitting functional layer and a second electrode.

[0021] The vertical projection of the first metal layer on the glass substrate does not overlap with the vertical projection of the light emitting functional layer on the glass substrate.

[0022] Optionally, the vertical projection of the first metal layer and the second metal layer on the glass substrate is in a grid shape.

[0023] Optionally, the display panel provided by the embodiment further comprises a plurality of first lead lines.

[0024] Each self-capacitance touch electrode is electrically connected with the touch chip through a first lead line.

[0025] Optionally, the display panel provided by the embodiment further comprises a plurality of second lead lines and a plurality of third lead lines.

[0026] Two adjacent first metal electrodes in the first metal electrode channel are electrically connected through a second lead line.

[0027] Two adjacent second metal electrodes in the second metal electrode channel are electrically connected through a third lead line.

[0028] According to another aspect of the utility model, a display device is provided, and the display device comprises the display panel provided by any embodiment of the utility model.

[0029] The embodiment provides a display panel, which comprises a glass substrate, a driving array layer, a light-emitting unit layer, an encapsulation layer and a touch layer which are sequentially stacked, and the display panel provided by the embodiment can be a Hybrid display panel. The touch layer comprises a first inorganic layer, a first metal layer and a second inorganic layer, the first metal layer can comprise self-capacitive touch electrodes or mutual-capacitive touch electrodes. The first inorganic layer and the second inorganic layer can protect metal wires in the first metal layer from corrosion by external water vapor, the first inorganic layer and the second inorganic layer have high light transmittance and low cost, and therefore, the display panel provided by the embodiment can improve the display effect of the display panel, reduce the manufacturing cost of the display panel and prolong the service life of the display panel.

[0030] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the utility model, nor is it used to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0032] Figure 1 It is a structural schematic diagram of a display panel according to the embodiment of the utility model;

[0033] Figure 2 It is a structural schematic diagram of another display panel according to the embodiment of the utility model;

[0034] Figure 3 It is a structural schematic diagram of a first metal layer according to the embodiment of the utility model;

[0035] Figure 4 It is a structural schematic diagram of another display panel according to the embodiment of the utility model;

[0036] Figure 5 It is a structural schematic diagram of another display panel according to the embodiment of the utility model. DETAILED DESCRIPTION

[0037] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0038] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0039] Figure 1 is a structural schematic diagram of a display panel according to an embodiment of the present application, Figure 2 is a structural schematic diagram of another display panel according to an embodiment of the present application, with reference to Figure 1 and Figure 2 The display panel provided in the embodiment includes a glass substrate 110, a driving array layer 120, a light emitting unit layer 130, an encapsulation layer 140 and a touch layer 150 which are sequentially stacked; the touch layer 150 includes a first inorganic layer 151, a first metal layer 152 and a second inorganic layer 153, the first inorganic layer 151 is located on a side of the encapsulation layer 140 away from the light emitting unit layer 130, the first metal layer 152 is located on a side of the first inorganic layer 151 away from the encapsulation layer 140, and the second inorganic layer 153 is located on a side of the first metal layer 152 away from the first inorganic layer 151.

[0040] Specifically, the display panel provided in the embodiment includes a glass substrate 110, which can be a Hybrid display panel. The display panel provided in the embodiment has a stronger display intensity than a flexible display panel due to the glass substrate 110, and the cost of the Hybrid display panel is lower than that of the flexible display panel, which has great application potential.

[0041] The driving array layer 120 includes a plurality of pixel driving circuits, and the light emitting unit layer 130 includes a plurality of light emitting units 131. The pixel driving circuit can correspond to the light emitting unit 131 one by one, and the pixel driving circuit can drive the light emitting unit 131 to emit light. The pixel driving circuit can be a 7T1C circuit or a 2T1C circuit. The light emitting unit 131 can be a red light emitting unit, a green light emitting unit or a blue light emitting unit. The light emitting unit 131 can include a cathode, a light emitting functional layer and an anode.

[0042] The encapsulation layer 140 can include two inorganic encapsulation layers 141 and one organic encapsulation layer 142, and the organic encapsulation layer 142 is located between the two inorganic encapsulation layers 141. The inorganic encapsulation layer 141 in the encapsulation layer 140 is formed by metal mask pattern evaporation, and the organic encapsulation layer 142 can be formed by inkjet printing.

[0043] The first metal layer 152 can include a plurality of touch electrodes, and the touch electrode can be a self-capacitive touch electrode or a mutual-capacitive touch electrode. The shape of the touch electrode can be circular, oval, rectangular or parallelogram, etc. When the touch electrode is a mutual-capacitive touch electrode, the first metal layer can include a touch sensing electrode and a touch driving electrode, and the touch sensing electrode and the touch driving electrode are arranged in the same layer. The first metal layer can be located in the display area of the display panel and cover the entire display area, thereby realizing full-area touch control of the display panel. The touch electrode in the embodiment is made of a metal material, which can improve the touch sensitivity and reduce the manufacturing cost of the touch electrode, thereby reducing the manufacturing cost of the display panel.

[0044] The first inorganic layer 151 and the second inorganic layer 153 can protect the metal wires in the first metal layer 152 from water vapor corrosion. The material of the first inorganic layer 151 and the second inorganic layer 153 can be SiOx or SiNx. The first inorganic layer 151 and the second inorganic layer 153 are made of inorganic materials, which have low manufacturing cost and stronger water resistance, and can improve the ability to prevent the metal wires in the first metal layer 152 from being corroded by water vapor, thereby improving the service life of the display panel. In addition, the first inorganic layer 151 and the second inorganic layer 153 have better light transmittance, which can improve the display effect of the display panel.

[0045] The embodiment provides a display panel, which comprises a glass substrate, a driving array layer, a light-emitting unit layer, an encapsulation layer and a touch layer which are sequentially stacked, and the display panel provided by the embodiment can be a Hybrid display panel. The touch layer comprises a first inorganic layer, a first metal layer and a second inorganic layer, the first metal layer can comprise self-capacitance touch electrodes or mutual-capacitance touch electrodes. The first inorganic layer and the second inorganic layer can protect metal traces in the first metal layer from corrosion by external water vapor, the first inorganic layer and the second inorganic layer have high light transmittance and low cost, and therefore, the display panel provided by the embodiment can improve the display effect of the display panel, reduce the manufacturing cost of the display panel and prolong the service life of the display panel.

[0046] Optionally, Figure 3 is a structural schematic diagram of a first metal layer according to the embodiment of the utility model, referring to Figure 3 , the first metal layer 152 comprises a plurality of array-arranged self-capacitance touch electrodes 1521, it can be seen that the touch layer of the display panel provided by the embodiment can be self-capacitance touch.

[0047] Optionally, Figure 4 is a structural schematic diagram of still another display panel according to the embodiment of the utility model, Figure 5 is a structural schematic diagram of still another display panel according to the embodiment of the utility model, referring to Figure 4 , the touch layer 150 further comprises a second metal layer 154; the second metal layer 154 is located on the side of the first inorganic layer 151 close to the encapsulation layer 140. Referring to Figure 4 and Figure 5 , the first metal layer 152 comprises a plurality of first metal electrode channels arranged along a second direction Y; the second metal layer 154 comprises a plurality of second metal electrode channels arranged along a first direction X; the first metal electrode channel comprises a plurality of first metal electrodes 1542 arranged along the first direction X; the second metal electrode channel comprises a plurality of second metal electrodes 1541 arranged along the second direction Y, wherein the first direction X intersects the second direction Y.

[0048] Specifically, adjacent two first metal electrodes 1542 in the first metal electrode channel are electrically connected, and adjacent two second metal electrodes 1541 in the second metal electrode channel are electrically connected. The touch layer 150 in the embodiment comprises mutual-capacitance touch electrodes. The first metal electrode 1542 can be a touch sensing electrode, and the second metal electrode 1541 can be a touch driving sensing electrode. The touch driving electrode is used to transmit a touch signal, and the touch sensing electrode is used to sense the change of the touch signal in the touch driving electrode. A plurality of touch driving electrodes and a plurality of touch sensing electrodes are arranged in a cross manner, and a touch unit can be formed at the center of the cross position.

[0049] Optionally, continuing to refer to Figure 3The display panel provided in the embodiment further comprises a touch chip 160; the touch chip 160 is electrically connected with each self-capacitance touch electrode 1521.

[0050] Specifically, each self-capacitance touch electrode 1521 in the first metal layer 152 is electrically connected with the touch chip 160, and the touch chip 160 can receive the touch signal generated by each self-capacitance touch electrode 1521, so as to determine the touch position.

[0051] Optionally, continuing to refer to Figure 5 The display panel provided in the embodiment further comprises a touch chip 160; the touch chip 160 is electrically connected with each first metal electrode channel and each second metal electrode channel.

[0052] Specifically, the touch layer provided in the embodiment is mutual-capacitance touch. Taking the first metal electrode 1542 as a touch sensing electrode and the second metal electrode 1541 as a touch driving electrode as an example, the principle of mutual-capacitance touch can be that the touch chip inputs a touch signal to the second metal electrode 1541, when the user's finger approaches or contacts the second metal electrode 1541, the touch signal in the second metal electrode 1541 will change, and the touch chip 160 can determine a unique touch position through the change of the touch signal sensed by the first metal electrode 1542.

[0053] Optionally, the light emitting unit layer comprises a plurality of light emitting units; each light emitting unit comprises a first electrode, a light emitting functional layer and a second electrode; the vertical projection of the first metal layer on the glass substrate does not overlap with the vertical projection of the light emitting functional layer on the glass substrate. In this way, the light emitted by the light emitting unit can be prevented from being blocked by the first metal layer, so that the display effect of the display panel can be improved.

[0054] Optionally, the vertical projection of the second metal layer on the glass substrate does not overlap with the vertical projection of the light emitting functional layer on the glass substrate. In this way, the light emitted by the light emitting unit can be prevented from being blocked by the second metal layer, so that the display effect of the display panel can be improved.

[0055] Optionally, the vertical projection of the first metal layer and the second metal layer on the glass substrate is in the shape of a grid. In this way, the light emitted by the light emitting unit in the light emitting unit layer can be emitted through the grid openings in the grid shape of the first metal layer and the second metal layer, so that the display brightness of the display panel can be improved.

[0056] Optionally, continuing to refer to Figure 3 The display panel provided in the embodiment further comprises a plurality of first lead lines 1522; each self-capacitance touch electrode 1521 is electrically connected with the touch chip 160 through the first lead line 1522.

[0057] Specifically, the first lead line 1522 is used for transmitting a touch signal. The material of the first lead line 1522 can be a transparent conductive material. When the first lead line 1522 is not transparent, the vertical projection of the first lead line 1522 on the glass substrate does not overlap the vertical projection of the light-emitting functional layer in the light-emitting unit on the glass substrate.

[0058] Optionally, with reference to the above description Figure 5 The display panel provided by the embodiment further includes a plurality of second lead lines 1543 and a plurality of third lead lines 1544; two adjacent first metal electrodes 1542 in the first metal electrode channel are electrically connected by the second lead line 1543; and two adjacent second metal electrodes 1541 in the second metal electrode channel are electrically connected by the third lead line 1544.

[0059] Specifically, the material of the second lead line 1543 and the third lead line 1544 can be a transparent conductive material. When the second lead line 1543 and the third lead line 1544 are not transparent, the vertical projection of the second lead line 1543 on the glass substrate does not overlap the vertical projection of the light-emitting functional layer in the light-emitting unit on the glass substrate, and the vertical projection of the third lead line 1544 on the glass substrate does not overlap the vertical projection of the light-emitting functional layer in the light-emitting unit on the glass substrate.

[0060] The embodiment further provides a display device including the display panel provided by any of the embodiments of the utility model.

[0061] Specifically, the display device provided by the embodiment can be a mobile phone, a tablet computer, an Ipad, a smart watch, or the like, which has a display function.

[0062] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the utility model can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions of the utility model can be achieved, which are not limited herein.

[0063] The above specific embodiments do not constitute a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A display panel, characterized by, The display panel comprises a glass substrate, a driving array layer, a light-emitting unit layer, an encapsulation layer, and a touch layer arranged in sequence. The touch layer comprises a first inorganic layer, a first metal layer, and a second inorganic layer. The first inorganic layer is located on a side of the encapsulation layer away from the light-emitting unit layer, the first metal layer is located on a side of the first inorganic layer away from the encapsulation layer, and the second inorganic layer is located on a side of the first metal layer away from the first inorganic layer. The first metal layer comprises a plurality of self-capacitance touch electrodes arranged in an array.

2. The display panel of claim 1, wherein, The touch layer further comprises a second metal layer.

3. The display panel of claim 1, wherein, The second metal layer is located on a side of the first inorganic layer close to the encapsulation layer. The first metal layer comprises a plurality of first metal electrode channels arranged in a second direction. The second metal layer comprises a plurality of second metal electrode channels arranged in a first direction. The first metal electrode channel comprises a plurality of first metal electrodes arranged in the first direction. The second metal electrode channel comprises a plurality of second metal electrodes arranged in the second direction, wherein the first direction intersects the second direction. The display panel further comprises a touch chip.

4. The display panel of claim 2, wherein, The touch chip is electrically connected to each self-capacitance touch electrode. The display panel further comprises a touch chip.

5. The display panel of claim 3, wherein, The touch chip is electrically connected to each first metal electrode channel and each second metal electrode channel. The light-emitting unit layer comprises a plurality of light-emitting units.

6. The display panel of claim 1, wherein, Each light-emitting unit comprises a first electrode, a light-emitting functional layer, and a second electrode. The vertical projection of the first metal layer on the glass substrate does not overlap the vertical projection of the light-emitting functional layer on the glass substrate. The vertical projection of the first metal layer and the second metal layer on the glass substrate is in the shape of a grid.

7. The display panel of claim 3, wherein, The display panel further comprises a plurality of first lead lines.

8. The display panel of claim 4, wherein, Each self-capacitance touch electrode is electrically connected to the touch chip through a first lead line. The display panel further comprises a plurality of second lead lines and a plurality of third lead lines.

9. The display panel of claim 3, wherein, Two adjacent first metal electrodes in the first metal electrode channel are electrically connected through a second lead line. Two adjacent second metal electrodes in the second metal electrode channel are electrically connected through a third lead line. The display panel comprises the display panel of any one of claims 1-9.

10. A display device, characterized by comprising: ​

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