CN105741689A - Display panel and display device - Google Patents

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel has a display area, including a first display substrate and a second display substrate facing each other, and the display area also includes a matrix distribution between the first display substrate and the second display substrate A pressure power generation module; the pressure power generation module is used to perform piezoelectric conversion to generate electric energy when subjected to pressure. Since the pressure power generation module is installed in the display area, when an external force is applied, piezoelectric conversion can be performed to generate electric energy to realize the self-power supply of the display panel, which solves the problem that the capacity of the battery is difficult to provide power for a long time.

Description

A display panel and a display device

technical field

The present invention relates to the field of display technology, in particular to a display panel and a display device.

Background technique

At present, the use of display panels is becoming more and more extensive. For example, in car screens and mobile phone screens, due to the large power consumption, there is a big problem in battery life during use, especially for large-size, high-brightness display panels. Generally speaking, the capacity of the battery is difficult to achieve long-term power supply life.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a display panel and a display device, which are used to solve the problem that the display panel is difficult to last for a long time with power supply.

The purpose of the embodiments of the present invention is achieved through the following technical solutions:

A display panel, the display panel has a display area, including a first display substrate and a second display substrate facing each other, and the display area further includes And the pressure power generation module distributed in matrix; the pressure power generation module is used for performing piezoelectric conversion to generate electric energy when subjected to pressure.

Preferably, the pressure generating module includes a piezoelectric conversion component and an elastic pressure transmission component located above the piezoelectric conversion component;

Wherein, the pressure transmission component is used to transmit the received pressure to the piezoelectric conversion component;

The piezoelectric conversion component is used for piezoelectric conversion to generate electric energy when subjected to pressure.

Preferably, the shape of the piezoelectric conversion component is U-shaped.

Preferably, the piezoelectric conversion component includes a piezoelectric material.

Preferably, the piezoelectric material is one of piezoelectric ceramics, piezoelectric crystals and piezoelectric polymers.

Preferably, the pressure power generation module further includes a pressure equalization component located between the pressure transmission component and the piezoelectric conversion component; the pressure equalization component is used to equalize the Pressure on electrical conversion components.

Preferably, the display panel further includes an output module connected to the pressure generating module;

The output terminal of the output module is connected with the charging interface, or connected with the power signal line of the driving circuit.

Preferably, the display panel further includes rectification circuits respectively connected to the pressure generating module and the output module;

The rectification circuit is used to rectify the electric energy output by the pressure generating module.

Preferably, the pressure received by the pressure generating module includes pressure generated by sliding or pressing operations of fingers on the display panel.

The beneficial effects of the embodiments of the present invention are as follows:

In the display panel and the display device provided by the embodiments of the present invention, since the pressure power generation module is set in the display area, when an external force is applied, piezoelectric conversion can be performed to generate electric energy, so as to realize the self-power supply of the display panel and solve the problem of battery capacity. Difficult to long-term power supply battery life problem.

Description of drawings

FIG. 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another display panel provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a pressure generating module provided by an embodiment of the present invention.

detailed description

A display panel and a display device provided by the present invention will be described in more detail below with reference to the drawings and embodiments.

As shown in FIG. 1 , an embodiment of the present invention provides a display panel. The display panel has a display area, including a first display substrate 1 and a second display substrate 2 facing each other. 1 and the second display substrate 2 and the pressure power generation modules 3 distributed in a matrix; the pressure power generation modules 3 are used to perform piezoelectric conversion to generate electric energy when subjected to pressure.

In the embodiment of the present invention, since the pressure power generation module is set in the display area, when the external force is applied, piezoelectric conversion can be performed to generate electric energy, so as to realize the self-power supply of the display panel, and solve the problem that the capacity of the battery is difficult to supply power for a long time. .

Among them, there are various specific structures of the pressure generating module, two of which are listed below.

In a possible embodiment, preferably, the pressure generating module includes a piezoelectric conversion component and an elastic pressure transmission component located above the piezoelectric conversion component;

Wherein, the pressure transmission component is used to transmit the received pressure to the piezoelectric conversion component;

The piezoelectric conversion component is used for piezoelectric conversion to generate electric energy when subjected to pressure.

In another possible embodiment, preferably, in addition to the above-mentioned piezoelectric conversion component and pressure transmission component, the pressure power generation module further includes a pressure equalization component located between the pressure transmission component and the piezoelectric conversion component; To equalize the pressure transmitted from the pressure transmission part to the piezoelectric conversion part.

In this embodiment, the pressure equalization component can make the pressure on the piezoelectric conversion component uniform, and expand the pressure range of the piezoelectric conversion component.

Based on the above related embodiments, preferably, the shape of the piezoelectric conversion component may be, but not limited to, U-shaped. In this way, the U-shaped piezoelectric conversion member is a bent member and is more sensitive to pressure.

Based on the above related embodiments, preferably, the piezoelectric conversion component includes a piezoelectric material.

There are many kinds of piezoelectric materials, preferably, the piezoelectric material is one of piezoelectric ceramics, piezoelectric crystals and piezoelectric polymers.

In the embodiment of the present invention, the electric energy generated by the piezoelectric conversion module can be stored in the battery, or directly used as power supply for the display panel. Therefore, preferably, the display panel further includes an output module connected to the pressure generating module;

The output terminal of the output module is connected with the charging interface, or connected with the power signal line of the driving circuit.

Preferably, the display panel further includes a rectification circuit respectively connected to the pressure generating module and the output module;

The rectification circuit is used to rectify the electric energy output by the pressure generating module.

In this embodiment, after being rectified by the rectifier circuit, the alternating current can be converted into direct current to meet the power supply requirement.

Preferably, the pressure received by the pressure generating module may be the pressure generated by the sliding or pressing operation of the finger on the display panel.

Since operations such as swiping the screen and pressing during use consume bioenergy, therefore, in this embodiment, bioenergy is converted into electrical energy.

In addition, the pressure on the pressure generating module may also be the pressure exerted by other objects on the display panel, which will not be listed here.

It should be noted that the above-mentioned pressure generating module may be located on the first display substrate or on the second display substrate.

A display panel provided by an embodiment of the present invention will be described in more detail below through specific application scenarios.

The display panel of this embodiment includes a first display substrate and a second display substrate, wherein the first display substrate is an array substrate, and the second display substrate is a color filter substrate. As shown in FIG. 2 , the display area (shown by the dotted line box) also includes pressure generating modules 3 located on the second display substrate 2 and distributed in a matrix. The input end of the module 5 is connected, and the output end of the output module is connected with the charging interface 6 .

Wherein, as shown in FIG. 3 , the pressure generating module 3 includes a U-shaped piezoelectric material 31, a lower housing 32 located in the opening of the U-shaped piezoelectric material 31, and a lower housing 32 located on the lower housing 32 and the U-shaped piezoelectric material 31. Upper elastic body 33. Wherein, the upper elastic body 33 is a pressure transmitting part, and the upper elastic body 33 will be deformed under the action of the pressure generated by the sliding operation or pressing operation of the finger on the display panel. The lower housing 32 is in the shape of a flat plate, that is, a pressure equalization component, which can uniformize the pressure on the upper elastic body 33 and transmit it to the U-shaped piezoelectric material 31 . The U-shaped piezoelectric material 31, that is, the piezoelectric conversion component, after receiving the pressure applied by the lower housing 32, due to the piezoelectric effect, charges are generated on the upper and lower surfaces of the U-shaped piezoelectric material 31. At this time, the U-shaped piezoelectric material 31 is equivalent to a capacitor, and the capacitor stores energy after generating charges at the two poles, thereby converting the pressure it receives into electrical energy.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the display panel described in any of the above embodiments.

In the display panel and the display device provided by the embodiments of the present invention, since the pressure power generation module is set in the display area, when an external force is applied, piezoelectric conversion can be performed to generate electric energy, so as to realize the self-power supply of the display panel and solve the problem of battery capacity. Difficult to long-term power supply battery life problem.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (10)

1. A display panel, the display panel has a display area, including a first display substrate and a second display substrate facing each other, characterized in that, the display area also includes The pressure generating modules distributed in a matrix between the second display substrates; the pressure generating modules are used to perform piezoelectric conversion to generate electric energy when subjected to pressure. 2. The display panel according to claim 1, wherein the pressure generating module comprises a piezoelectric conversion component and an elastic pressure transmission component located above the piezoelectric conversion component; Wherein, the pressure transmission component is used to transmit the received pressure to the piezoelectric conversion component; The piezoelectric conversion component is used for piezoelectric conversion to generate electric energy when subjected to pressure. 3. The display panel according to claim 2, wherein the shape of the piezoelectric conversion component is U-shaped. 4. The display panel according to claim 2, wherein the piezoelectric conversion component comprises a piezoelectric material. 5. The display panel according to claim 4, wherein the piezoelectric material is one of piezoelectric ceramics, piezoelectric crystals and piezoelectric polymers. 6. The display panel according to claim 2, wherein the pressure generating module further comprises a pressure equalization component located between the pressure transmission component and the piezoelectric conversion component; the pressure equalization component is used for The pressure transmitted from the pressure transmission member to the piezoelectric conversion member is uniformized. 7. The display panel according to claim 1, characterized in that, the display panel further comprises an output module connected to the pressure generating module; The output terminal of the output module is connected with the charging interface, or connected with the power signal line of the driving circuit. 8. The display panel according to claim 7, characterized in that, the display panel further comprises a rectification circuit connected to the pressure generating module and the output module respectively; The rectification circuit is used to rectify the electric energy output by the pressure generating module. 9. The display panel according to any one of claims 1-8, wherein the pressure received by the pressure generating module includes pressure generated by sliding or pressing operations of fingers on the display panel. 10. A display device, comprising the display panel according to any one of claims 1-9.