TWI646378B - Display panel with antenna functionality and antenna unit thereof - Google Patents

Abstract

The invention discloses a display panel with electromagnetic radiation function and an antenna unit thereof. The display panel includes a light incident surface, a light emitting surface, and a pixel layer. The pixel layer includes a plurality of pixel units located in a display area of the display panel, wherein the antenna unit includes a radiation layer, and the radiation layer has an upper surface. a lower surface and a plurality of through holes connected between the upper surface and the lower surface, the radiation layer is disposed in the display panel, and at least a portion of the radiation layer is located in the display area of the display panel, wherein each of the through holes is respectively located Corresponding to each of the pixel units, such that a light emitted from a light source can be incident from the light incident surface of the display panel, and is emitted from the display panel through the plurality of through holes of the radiation layer and the plurality of pixel units of the pixel layer. Shot out.

Description

Display panel with electromagnetic radiation function and antenna unit thereof

The invention relates to an antenna unit, in particular to a display panel with electromagnetic radiation function and an antenna unit thereof.

The electronic mobile devices of the prior art mostly have an antenna function, wherein the antenna is disposed at a slit of the casing away from the display panel and the internal metal component to avoid display of the image and interference with the metal component. Taking a smart phone as an example, the antenna is disposed on the inner side of the back cover of the mobile phone, and a ferrite layer is disposed between the antenna and the metal component to prevent interference with the transmission of the antenna signal, and if the back shell material is metal, it must be opened. Hole or slit to transmit the antenna signal.

However, with the advancement of technology, the size of electronic mobile devices has been continuously miniaturized, so the difficulty of providing antennas on the backplane has increased. Moreover, in order to enable the antenna signal to be free from interference from metal components and to enable the antenna signal to pass through the back shell, in designing and manufacturing a mobile device having an antenna function in the prior art, different internal structures must be considered for different mobile devices. The antenna module is designed, and the design of the backplane must also be taken into consideration to increase the manufacturing cost. Therefore, the prior art electronic mobile device still has room for improvement.

The technical problem to be solved by the present invention is to provide an antenna unit and a display panel with electromagnetic radiation function, which are provided in the display panel and do not affect the display panel. The display function, thereby achieving integration of the antenna in the display panel.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide an antenna unit, wherein the antenna unit is used for a display panel, and the display panel includes a light incident surface, a light exit surface, and a pixel layer. The pixel layer includes a plurality of pixel units, and the plurality of pixel units are located in a display area of the display panel, wherein the antenna unit includes a radiation layer, and the radiation layer has an upper surface and a lower surface. a surface and a plurality of through vias connected between the upper surface and the lower surface, the radiation layer being disposed in the display panel, and at least a portion of the radiation layer being located in the display panel a display area, wherein each of the through-holes respectively corresponds to each of the pixel units, so that a light emitted from a light source can be incident from the light incident surface of the display panel, and pass through The plurality of through-holes of the radiation layer and the plurality of pixel units of the pixel layer are emitted from the light-emitting surface of the display panel.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a display panel with electromagnetic radiation function, the display panel comprising a light incident surface, a light exit surface, a pixel layer and an antenna unit. The pixel layer includes a plurality of pixel units, and the plurality of pixel units are located in a display area of the display panel, wherein the antenna unit includes a radiation layer, and the radiation layer has an upper surface and a lower surface. And a plurality of through vias connected between the upper surface and the lower surface, the radiation layer being disposed in the display panel, and at least a portion of the radiation layer being located on the display of the display panel a region, wherein each of the through-holes corresponds to each of the pixel units, such that a light can be incident from the light incident surface of the display panel and pass through the plurality of the radiation layers The through holes and the plurality of pixel units of the pixel layer are emitted from the light emitting surface of the display panel.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a display panel with electromagnetic radiation function, which comprises a display module and an antenna unit. The display module provides a plurality of image beams Image light source. The antenna unit is disposed in the display module. The antenna unit includes at least one radiating layer, and at least one of the radiating layers has a plurality of through holes, and at least a portion of the plurality of image beams correspondingly pass through at least a portion of the plurality of through through holes.

One of the advantageous effects of the present invention is that the electromagnetic radiation-emitting display panel and the antenna unit thereof can be provided by the “radiation layer having an upper surface, a lower surface, and a connection to the upper surface and the a plurality of through vias between the lower surfaces and a technical solution in which the radiation layer is disposed in the display panel and at least a portion of the radiation layer is located in the display region of the display panel Enabling a light emitted from a light source to be incident from the light incident surface of the display panel, and passing through a plurality of the through vias of the radiation layer and a plurality of the pixel units of the pixel layer The light emitting surface of the display panel is emitted.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the detailed description and drawings of the invention.

Z‧‧‧ display panel

S‧‧‧ light source

C‧‧‧liquid crystal molecules

1‧‧‧ display module

101‧‧‧Into the glossy surface

102‧‧‧Glossy surface

11‧‧‧ pixel layer

111‧‧‧pixel unit

121‧‧‧First alignment layer

122‧‧‧Second alignment layer

131‧‧‧First electrode layer

132‧‧‧Second electrode layer

151‧‧‧First substrate

152‧‧‧second substrate

161‧‧‧First polarizer

162‧‧‧Second polarizer

14‧‧‧Color filter layer

V‧‧‧ channel

2‧‧‧Antenna unit

21‧‧‧radiation layer

2101‧‧‧ Upper surface of the radiation layer

2102‧‧‧ Lower surface of the radiation layer

H1‧‧‧radiation layer through the through hole

22‧‧‧Coupling radiation layer

2201‧‧‧Coupling radiation upper surface

2202‧‧‧ coupling the lower surface of the radiation layer

H2‧‧‧ coupling radiation layer through the through hole

U‧‧‧Transparent insulation

1 is a side elevational view of a display panel with electromagnetic radiation function according to a first embodiment of the present invention.

2 is a top plan view showing a portion of an antenna unit in a display area according to a first embodiment of the present invention.

3 is a partial side elevational view of a portion of a display panel with electromagnetic radiation function including a pixel unit in accordance with a first embodiment of the present invention.

4 is a side view showing the radiation layer of the antenna unit of the display panel with electromagnetic radiation function disposed between the first substrate and the first electrode layer according to the first embodiment of the present invention.

FIG. 5 is a side elevational view showing the radiation layer of the antenna unit of the display panel with electromagnetic radiation function disposed between the first substrate and the first polarizing plate according to the first embodiment of the present invention.

FIG. 6 is a schematic perspective view showing a coupling radiation layer of an antenna unit according to a second embodiment of the present invention disposed on a pixel layer.

Fig. 7 is a side elevational view showing a display panel with electromagnetic radiation function according to a second embodiment of the present invention.

FIG. 8 is a side elevational view showing the antenna unit of the electromagnetic radiation-emitting display panel in another configuration manner according to the second embodiment of the present invention.

FIG. 9 is a side elevational view showing the antenna unit of the electromagnetic radiation-emitting display panel in another configuration manner according to the second embodiment of the present invention.

FIG. 10 is a side elevational view showing the antenna unit of the electromagnetic radiation-emitting display panel in another embodiment of the second embodiment of the present invention.

Figure 11 is a side elevational view of another display panel having electromagnetic radiation function in accordance with a second embodiment of the present invention.

The following is a description of an embodiment of the present invention relating to a "display panel with electromagnetic radiation function and its antenna unit" by a specific embodiment, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in the specification. . The invention can be implemented or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not intended to be stated in the actual size. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, these elements or signals are not limited by these terms. These terms are primarily used to distinguish one element from another, or one signal and another. In addition, the term "or" as used herein may include a combination of any one or more of the associated listed items, depending on the actual situation.

[First Embodiment]

Referring to FIG. 1 to FIG. 5, a first embodiment of the present invention provides a display module 1 with an electromagnetic radiation function and an antenna unit 2. The display module 1 provides an image light source composed of a plurality of image beams. More specifically, in the embodiment, the display module 1 has a light incident surface 101, a light exit surface 102, and a pixel layer 11. The pixel layer 11 includes a plurality of pixel units 111, and the plurality of pixel units 111 are located in a display area of the display panel Z.

The present invention does not limit the type of the display module 1. In the present embodiment, the display module 1 is a thin film transistor liquid crystal display (TFT LCD). However, the present invention is not limited thereto, for example, in other embodiments, the display The module 1 can also be a liquid crystal display, an OLED display or a plasma display other than a TFT LCD. The above is merely illustrative, and the present invention is not limited to the above. Since the detailed structure of the thin film transistor liquid crystal display is common knowledge in the art, it will not be described again.

Specifically, in this embodiment, as shown in FIG. 2, the display module 1 further includes a first polarizing plate 161, a first substrate 151, a first electrode layer 131, a first alignment layer 121, and a first alignment layer 121. a second polarizing plate 162, a second substrate 152, a second electrode layer 132, a color filter layer 14, and a second alignment layer 122, wherein the pixel layer 11 is located at the first alignment layer 121 and the second alignment layer 122. The first electrode layer 131 is disposed on a side of the first alignment layer 121 away from the pixel layer 11 , and the second electrode layer 132 is disposed on a side of the second alignment layer 122 away from the pixel layer 11 .

Further, as shown in FIG. 1 , the antenna unit 2 includes a radiation layer 21 , and the radiation layer 21 is located between the pixel layer 11 and the first alignment layer 121 . The radiation layer 21 has an upper surface 2101, a lower surface 2102, and a plurality of through holes H1 connected between the upper surface 2101 and the lower surface 2102. The radiation layer 21 is disposed in the display panel Z, and at least a portion of the radiation layer 21 is located in a display area (not shown) of the display panel Z. Each of the through-holes H1 corresponds to each of the pixel units 111, so that light emitted from the light source S can be incident from the light-incident surface 101 of the display panel Z, and passes through the plurality of through-holes H1 of the radiation layer 21 and Multiple pixel units of pixel layer 11 111 is emitted from the light-emitting surface 102 of the display panel Z.

It should be noted that the present invention does not limit the position of the radiation layer 21 disposed in the display module 1. The above description and the position of the radiation layer 21 depicted in FIG. 1 in the display module 1 are merely illustrative. In a practical application, the radiation layer 21 can be disposed at a position in the display module 1 that does not affect the normal operation of the display module 1. For example, the radiation layer 21 can also be disposed between the pixel layer 11 and the second alignment layer 122 (as shown in the figure). 3), between the first substrate 151 and the first electrode layer 131 (as shown in FIG. 4), between the second substrate 152 and the color filter layer 14, between the first substrate 151 and the first polarizing plate 161 (as shown in FIG. 5) and between the second substrate 152 and the second polarizing plate 162. In the antenna configuration shown in FIG. 4, in order to prevent the radiation layer 21 from affecting the operation of the first electrode layer 131, the antenna unit 2 further includes a transparent insulating layer U disposed between the radiation layer 21 and the first electrode layer 131.

Specifically, please refer to FIG. 2 and FIG. 3 together. FIG. 2 shows the radiation layer 21 of the antenna unit 2, wherein each of the radiation layers 21 penetrates through the hole H1 because the position corresponds to the position of each pixel unit 111. A partial side view of a portion of the display panel including one pixel unit 111, through which the incident light rays are passed through each of the pixel units 111 and each of the through holes H1, whereby the display panel of the present invention is The antenna unit 2 is embedded, but the antenna unit 2 does not affect the display function of the display panel Z, thus achieving integration of the display panel and the antenna.

Please refer to FIG. 2, which shows a schematic top view of the radiation layer 21 of the antenna unit 2 of the present embodiment. In the present embodiment, the antenna unit 2 is a planar inverted-F antenna (PIFA). However, it should be noted that the present invention does not limit the shape of the radiation layer 21 of the antenna unit 2. Referring to FIG. 3, each grid in FIG. 2 corresponds to the liquid crystal molecules C in the pixel unit 111 in FIG. 3, wherein the through holes H1 of the radiation layer 21 are in the vertical direction and the liquid crystal molecules C in the pixel unit 111. The alignment is such that the incident light rays pass through the liquid crystal molecules and then further pass through the through holes H1 of the radiation layer 21, and then exit from the light exit surface.

[Second embodiment]

Referring to FIG. 6 to FIG. 10, a difference between the second embodiment of the present invention and the first embodiment is that the antenna unit 2 of the embodiment further includes a coupling radiation layer 22. The coupling radiation layer 22 is disposed in the display module 1 , which is closer to the light-emitting surface 102 of the display panel Z than the radiation layer 21 , and at least a portion of the coupling radiation layer 22 is located in the display area of the display panel Z. As with the configuration of the coupling radiation layer 22, which is similar to the arrangement of the radiation layer 21, it may be disposed between the pixel layer 11 and the first or second alignment layer (121, 122), the first substrate 151 and the first electrode layer. Between 131, between the second substrate 152 and the second electrode layer 132 or between the second substrate 152 and the polarizing plate 162. The coupling radiation layer 22 may be disposed at any of the above positions as long as it is closer to the light exit surface 102 than the radiation layer 21.

7 to 10 illustrate the arrangement of the four radiation layers 21 and the coupling radiation layer 22, wherein FIG. 7 shows that the radiation layer 21 is disposed between the pixel layer 11 and the first alignment layer 121, and the coupling radiation layer 22 is disposed at the pixel. Between the layer 11 and the second alignment layer 122; FIG. 8 shows that the radiation layer 21 is disposed between the first substrate 151 and the first electrode layer 131, wherein a transparent insulating layer is disposed between the radiation layer 21 and the first electrode layer 131. The coupling radiation layer 22 is disposed between the pixel layer 11 and the second alignment layer 122; FIG. 9 shows that the radiation layer 21 is disposed between the first substrate 151 and the first polarizing plate 161, and the coupling radiation layer 22 is disposed on the pixel layer. 11 and the second alignment layer 122; FIG. 10 shows that the radiation layer 21 is disposed between the first substrate 151 and the first polarizer 161, and the coupling radiation layer 22 is disposed between the first substrate 151 and the first electrode layer 131. .

It should be emphasized that the above four configurations are merely illustrative, and the present invention is not limited thereto. The radiation layer 21 and the coupling radiation layer 22 may be disposed between any two layers of the display module 1 as long as the electrode layer is spaced apart from the first electrode layer 131 or the second electrode layer 132 (eg, transparent insulation) The layer U or the color filter layer 14) is used to avoid affecting the operation of the electrode layer, and the coupling radiation layer 22 is closer to the light exit surface 102 than the radiation layer 21.

Another difference between this embodiment and the first embodiment is the shape of the antenna. Detailed In this embodiment, the antenna unit 2 is a patch antenna. However, it should be noted that the present invention does not limit the shape of the antenna unit 2. The patch antenna is only one of the implementable shapes of the antenna unit 2 of the present invention, and is not intended to limit the antenna unit 2.

Please refer to FIG. 6 , which is a perspective view showing the coupling radiation layer 22 disposed on the pixel layer 111 , wherein at least a portion of the coupling radiation layer 22 has an upper surface 2201 , a lower surface 2202 , and a connection to the upper surface 2201 . a plurality of through holes H2 between the lower surfaces 2202, and a plurality of through-holes H2 of each of the coupling radiation layers 22 respectively correspond to each of the pixel units 111, so that the light emitted from the light source S can be self-generated The light incident surface 101 of the display panel Z is incident on the display panel Z through the plurality of through holes H1 of the radiation layer 21, the plurality of pixel units 111 of the pixel layer 11, and the plurality of through holes H2 of the coupling radiation layer 22. The light exit surface 102 is emitted.

In detail, the coupling radiation layer 22 may be coupled to the radiation layer 21, and each of the coupling radiation layers 22 corresponds to each of the pixel unit 111 and the radiation layer 21 of the pixel layer 11 in the vertical direction through the through hole H2. The position through the through hole H1. Thereby, the light emitted from the light source S can be emitted from the light incident surface 101 through the coupling radiation layer 22, the pixel layer 11, and the radiation layer 21, and the display panel Z of the embodiment integrates the coupled antenna without affecting Its display function.

Further, as shown in FIG. 10, when the radiation layer 21 and the coupling radiation layer 22 are respectively disposed on two sides of the first substrate 151, the first substrate 151 may have a plurality of channels V penetrating the first substrate 151 to The radiation layer 21 and the coupling radiation layer 22 are electrically connected through a plurality of channels V. Similarly, when the radiation layer 21 and the coupling radiation layer 22 are respectively disposed on two sides (not shown) of the second substrate 152, the second substrate 152 may also have a plurality of channels V to make the radiation layer 21 and the coupling radiation layer 22 Electrically connected through a plurality of channels V.

Referring to FIG. 11 , the display module 1 of the display panel Z with the electromagnetic radiation function of the embodiment may be another liquid crystal display, and the first electrode layer 131 and the second electrode layer 132 are located on the same side of the pixel layer 11 . And its radiation layer 21 and coupling spokes The configuration rule of the shot layer 22 is the same as the above, and will not be described herein. 11 is an example in which the radiation layer 21 is disposed between the first substrate 151 and the first polarizing plate 161, and the coupling radiation layer 22 is disposed between the second substrate 152 and the color filter layer 14.

The present invention does not limit the signal feeding position and the grounding position of the antenna unit 2. Those skilled in the art can set the feeding point and the grounding point at appropriate positions on the radiation layer 21 or the coupling radiation layer 22 as needed.

In summary, with the above structure of the present invention, the display panel Z and its antenna unit 2 can achieve the integration of the display and the antenna, and save space and reduce the design and manufacturing cost of the antenna for the electronic device using the display panel Z. .

[Advantageous Effects of Embodiments]

One of the advantageous effects of the present invention is that the electromagnetic radiation-emitting display panel Z and the antenna unit 2 thereof can pass the "radiation layer 21 has an upper surface 2101, a lower surface 2102, and a connection to the upper surface 2101. a plurality of through vias H1" and a "radiation layer 21 are disposed in the display panel Z, and at least a portion of the radiation layer 21 is located in the display region H1 of the display panel Z" to be emitted from the lower surface 2102 A light of a light source S can be incident from the light incident surface 101 of the display panel Z, and is emitted from the light exit surface 102 of the display panel Z through the plurality of pixel units 111 of the radiation layer 21 penetrating through holes H1 and the pixel layer 11 .

In addition, with the above structure of the present invention, the antenna unit 2 can be integrated into the display panel Z to achieve integration of the display and the antenna, and for the electronic device using the display panel Z, space can be saved and the design and manufacturing cost of the antenna can be reduced.

The above disclosure is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the present specification and the contents of the drawings are included in the application of the present invention. Within the scope of the patent.

Claims (11)

An antenna unit for a display panel, the display panel includes a light incident surface, a light exit surface, and a pixel layer, the pixel layer includes a plurality of pixel units, and the plurality of pixel units are located at the a display area of the display panel, wherein the antenna unit comprises a radiation layer and a coupling radiation layer, the radiation layer and the coupling radiation layer are spaced apart, and the radiation layer has a plurality of through layers a hole, the radiation layer is disposed in the display panel, and at least a portion of the radiation layer is located in the display area of the display panel, wherein each of the through holes of the radiation layer is respectively located Corresponding to each of the pixel units, at least a portion of the coupling radiation layer is located in the display area of the display panel and has a plurality of through vias, and each of the coupling radiation layers is located at the through hole Corresponding to each of the pixel units, respectively, such that a light emitted from a light source can be incident from the light incident surface of the display panel and pass through the radiation layer The plurality of through-holes, and a plurality of coupling the plurality of the radiation layer of the pixel unit of the pixel layer and the through-hole of the display panel from the light emitting surface is emitted. The antenna unit of claim 1, wherein the display panel is a liquid crystal display, and the display panel further comprises a first polarizing plate, a first substrate, a first electrode layer, and a first alignment layer. a second alignment layer, a second electrode layer, a second substrate, and a second polarizer, wherein the pixel layer is between the first alignment layer and the second alignment layer, An electrode layer is disposed on a side of the first alignment layer away from the pixel layer, the second electrode layer is disposed on a side of the second alignment layer away from the pixel layer, and the radiation layer is located at Between the pixel layer and the first alignment layer. The antenna unit of claim 2, further comprising: a transparent insulating layer, the coupling radiation layer and the transparent insulating layer being located between the second electrode layer and the second substrate, and the coupling Between the radiation layer and the second electrode layer The transparent insulating layer is spaced apart. The antenna unit of claim 2, wherein the coupling radiation layer is between the second substrate and the second polarizer. The antenna unit of claim 1, further comprising: a transparent insulating layer, wherein the display panel is a liquid crystal display, and the display panel further comprises a first polarizing plate, a first substrate, and a first An electrode layer, a first alignment layer, a second electrode layer, a second alignment layer, a second polarizing plate, and a second substrate, wherein the pixel layer is located in the first alignment layer and the second layer Between the alignment layers, the first electrode layer is disposed on a side of the first alignment layer away from the pixel layer, and the second electrode layer is disposed on a side of the second alignment layer away from the pixel layer And the radiation layer and the transparent insulating layer are located between the first substrate and the first electrode layer, and the transparent insulating layer is spaced between the radiation layer and the first electrode layer. The antenna unit of claim 1, wherein the display panel is a liquid crystal display, and the display panel further comprises a first polarizing plate, a first substrate, a first electrode layer, and a first alignment layer. a second polarizing plate, a second substrate, a second electrode layer, and a second alignment layer, wherein the pixel layer is located between the first alignment layer and the second alignment layer, An electrode layer is disposed on a side of the first alignment layer away from the pixel layer, the second electrode layer is disposed on a side of the second alignment layer away from the pixel layer, and the radiation layer is located at Between the first polarizing plate and the first substrate. The antenna unit of claim 6, further comprising: a transparent insulating layer, the coupling radiation layer and the transparent insulating layer being located between the first substrate and the first electrode layer, and the coupling The transparent insulating layer is spaced between the radiation layer and the first electrode layer. The antenna unit of claim 7, wherein the first substrate of the display panel has a plurality of channels extending through the first substrate, wherein the radiation layer and the coupling radiation layer pass through a plurality of The channels are electrically connected. The antenna unit of claim 1, wherein the display panel is a liquid crystal display, and the display panel further comprises a first polarizing plate, a first substrate, a first electrode layer, and a first alignment layer. a second polarizing plate, a second substrate, a second electrode layer, and a second alignment layer, wherein the pixel layer is located between the first alignment layer and the second alignment layer, An electrode layer and the second electrode layer are disposed on a side of the first alignment layer away from the pixel layer, and the first electrode layer and the second electrode layer are along a side of the pixel layer The extending directions are arranged in parallel, wherein the radiation layer is located between the pixel layer and the first alignment layer. A display panel with electromagnetic radiation function, the display panel includes a light incident surface, a light exit surface, a pixel layer and an antenna unit, the pixel layer includes a plurality of pixel units, and the plurality of pixel units are located in the a display area of the display panel, wherein the antenna unit comprises a radiation layer and a coupling radiation layer, the radiation layer and the coupling radiation layer are spaced apart, and the radiation layer has a plurality of through holes The radiation layer is disposed in the display panel, and at least a portion of the radiation layer is located in the display area of the display panel, wherein positions of each of the through holes are respectively corresponding to the radiation layer In each of the pixel units, at least a portion of the coupling radiation layer is located in the display area of the display panel and has a plurality of through holes, and each of the through-holes of the coupling radiation layer is respectively located Corresponding to each of the pixel units, such that a light emitted from a light source can be incident from the light incident surface of the display panel and pass through the radiation layer The plurality of through-holes, and a plurality of coupling the plurality of the radiation layer of the pixel unit of the pixel layer and the through-hole of the display panel from the light emitting surface is emitted. A display panel with electromagnetic radiation function, comprising: a display module, the display module provides an image light source composed of a plurality of image beams; and an antenna unit, wherein the antenna unit is disposed in the display mode s; The antenna unit includes at least one radiating layer and a coupling radiating layer, and at least the radiating layer and the coupling radiating layer each have a plurality of through holes, and at least a part of the plurality of image beams correspond to Passing through the plurality of through through holes of the radiation layer and at least a portion of the plurality of through through holes of the coupling radiation layer, wherein the radiation layer and the coupling radiation layer are spaced apart Settings.