CN112702451A

CN112702451A - Electronic device

Info

Publication number: CN112702451A
Application number: CN201911011175.1A
Authority: CN
Inventors: 张贵盛; 巫国荣; 陈柏仰; 姚怡安
Original assignee: Innolux Corp
Current assignee: Innolux Corp
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2021-04-23

Abstract

An electronic device comprises a display module, a backlight module and a transmitting coil. The display module includes a polarizing plate. The backlight module is positioned below the display module. The backlight module comprises a back plate. The transmitting coil is positioned between the polarizing plate and the back plate.

Description

Electronic device

Technical Field

The present application relates to an electronic device, and more particularly, to an electronic device with wireless charging technology.

Background

With the progress and development of technology, the usage rate of electronic devices using batteries as power sources is increasing year by year. In order to improve the convenience of the electronic device, more and more electronic devices can support the wireless charging function, so that the electronic devices can be charged without being connected or the batteries of other electronic devices to be charged can be wirelessly charged by the wireless charging technology.

However, there are still some problems to be solved for the convenience of the user to integrate the wireless charging technology into the electronic device.

Disclosure of Invention

According to some embodiments of the present application, an electronic device includes a display module, a backlight module, and a transmitting coil. The display module includes a polarizing plate. The backlight module is positioned below the display module. The backlight module comprises a back plate. The transmitting coil is positioned between the polarizing plate and the back plate.

According to some embodiments of the present application, an electronic device includes a display module, a backlight module, and a transmitting coil. The backlight module is positioned below the display module. The backlight module comprises a back plate and a reflector plate. The reflector plate is arranged in the accommodating space of the back plate. The back plate has an opening. The transmitting coil is disposed under the reflective sheet corresponding to the opening.

According to some embodiments of the present application, an electronic device is provided that includes a display module and a transmitting coil. The display module has a display side, and the display module includes a polarizing plate. The transmitting coil is located below the polarizing plate. The transmitting coil is used for transmitting charging energy to the induction coil of the object to be charged positioned on the display side so as to wirelessly charge the object to be charged.

Drawings

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:

fig. 1 is a schematic view illustrating an electronic device for wirelessly charging a target object to be charged according to an embodiment of the present disclosure.

Fig. 2 is a schematic side view of an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic side view of an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic side view of an electronic device according to an embodiment of the present application.

Fig. 5 is a schematic side view of an electronic device according to an embodiment of the present application.

Fig. 6 is a schematic side view of an electronic device according to an embodiment of the present application.

Fig. 7 is a schematic diagram illustrating an electronic device as a transmitting end according to an embodiment of the present application.

Fig. 8 is a schematic diagram illustrating an electronic device as a receiving end according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a display side of an electronic device according to an embodiment of the present application.

Fig. 10 is a schematic diagram illustrating an electronic device as a receiving end and a transmitting end according to an embodiment of the present application.

Element numbering in the figures:

100: electronic device

110: display module

111: a first polarizing plate

112: array substrate

113: opposite substrate

114: the second polarizing plate

120: transmitting coil

130: backlight module

131: back plate

131H: opening of the container

132: reflector plate

133: light guide plate

134: diffusion sheet

135: prism sheet

136: diffusion sheet

140: magnetic isolation sheet

150: main machine board

160: battery with a battery cell

170: back cover

180: receiving coil

191: voltage regulating circuit

192: power switching circuit

193: charging controller

200: object to be charged

210: sensing coil

300: electronic device

A1: flexible circuit board

A2: flexible circuit board

B1: printed circuit board

E1: charging energy

E2: charging energy

P1: display side

P11: display area

P12: charging zone

P2: setting side

Detailed Description

In order to make the aforementioned objects, features and advantages of the several embodiments of the present application more comprehensible, several embodiments accompanied with figures are described in detail below.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of further features, integers, steps, operations, elements, components, and/or groups thereof.

In the present application, the electronic device may include a display device, a touch device, an antenna device, a splicing device, a sensing device, an illuminating device, a flexible device, other suitable types of electronic devices, or a combination thereof, but the present application is not limited thereto. The electronic device may include, for example, a Liquid Crystal (LC), an organic light-emitting diode (OLED), an inorganic light-emitting diode (LED), such as a micro-LED (mini-LED), a Quantum Dot (QDs), a quantum dot light-emitting diode (QLED, QDLED), a fluorescent light (fluorescence), a phosphorescent light (phosphor), other suitable materials, or a combination thereof, but the present application is not limited thereto. The splicing device may be, for example, a display splicing device or an antenna splicing device, but the application is not limited thereto. The display device may be a color display device or a monochrome display device. Further, the shape of the electronic device may be rectangular, circular, polygonal, a shape with curved edges, or other suitable shapes. The present disclosure will be described below with reference to a display device as an electronic device, but the present disclosure is not limited thereto.

Referring to fig. 1, the electronic device 100 may charge the object 200 to be charged in a wireless charging manner. Particularly, when the wireless charging is performed, the object 200 to be charged is located on the display screen of the electronic device 100, so that the user can still see the picture displayed by the electronic device 100 when the user wirelessly charges the object 200 to be charged by using the electronic device 100.

Referring to fig. 1 to 6, the electronic device 100 may include a display module 110 and a transmitting coil 120. The display module 110 has a display side P1 and a setting side P2 opposite to each other. The display module 110 includes a polarizing plate (hereinafter, referred to as a first polarizing plate 111). Here, the first polarizing plate 111 is closer to the display side P1 in the display module 110. The transmitting coil 120 may be located under the first polarizer 111 when looking down at the display side P1 of the display module 110. In some embodiments, the transmitting coil 120 may transmit the charging energy E1 to the sensing coil 210 of the object 200 above the display side P1 by magnetic induction or magnetic resonance, etc. to wirelessly charge the object 200.

The display module 110 further includes an array substrate 112 and an opposite substrate 113. In some embodiments, the array substrate 112 is closer to the disposing side P2 in the display module 110. The opposite substrate 113 is closer to the display side P1 in the display module 110, and the opposite substrate 113 is located between the first polarizing plate 111 and the array substrate 112.

Referring to fig. 2, in some embodiments, the transmitting coil 120 may be integrated in the manufacturing process of the display module 110 and located between the array substrate 112 and the opposite substrate 113. In one embodiment, the transmitting coil 120 may be formed on the array substrate 112 and between the array substrate 112 and the opposite substrate 113 by an active device process. For example, the active device process may include, but is not limited to, a Thin Film Transistor (TFT) process, but the present application is not limited thereto. In another embodiment, the transmitting coil 120 may also be formed on the opposite substrate 113 between the array substrate 112 and the opposite substrate 113 by using a color filter process during the manufacturing process. In addition, the transmitting coil 120 may be further disposed corresponding to a position of a Black Matrix (BM) (not shown) in the display module 110 during manufacturing. Here, the transmitting coil 120 may be implemented using a transparent electrode, a metal, or other suitable conductive material, but the application is not limited thereto.

In some embodiments, as shown in fig. 3, the transmitting coil 120 may be fabricated above the opposite substrate 113 and between the first polarizer 111 and the opposite substrate 113. Here, the transmitting coil 120 may be implemented using a transparent electrode, a Metal (e.g., made in a Metal Mesh manner), or other suitable conductive material, but the application is not limited thereto.

In some embodiments, the material of the array substrate 112 and the opposite substrate 113 may include glass, quartz, sapphire (sapphire), ceramic, Polycarbonate (PC), Polyimide (PI), polyethylene terephthalate (PET), Liquid Crystal Polymer (LCP), rubber, fiberglass, ceramic, other suitable substrate materials, or a combination thereof, but the application is not limited thereto. In addition, the array substrate 112 and the opposite substrate 113 may be rigid substrates or flexible substrates, such as curved surfaces, S-shaped, wave-shaped, etc., but the present application is not limited thereto.

In some embodiments, the display module 110 may further include a second polarizer 114. Here, the second polarizing plate 114 is closer to the disposed side P2 in the display module 110. The second polarizer 114 may be located under the array substrate 112 when looking down at the display side P1 of the display module 110. It should be noted that, those skilled in the art should understand that the display module 110 may also include other elements to provide specific functions, and therefore, the present application is not limited thereto.

In some embodiments (not shown), the electronic device 100 may not include the backlight module 130, and may include self-luminous electronic elements (such as OLED, mini LED, micro LED, or QD), and some elements may be added or removed from the electronic device 100 as required, which is not limited in this application.

In some embodiments, the electronic device 100 may further include a backlight module 130. When looking down at the display side P1 of the display module 110, the backlight module 130 is located under the display module 110, and the disposing side P2 of the display module 110 may be disposed adjacent to the backlight module 130 (e.g., the second polarizer 114 of the display module 110 may contact the diffusion sheet 136 of the backlight module 130). In some embodiments, the backlight module 130 may include a back plate 131.

Referring to fig. 4, in some embodiments, the transmitting coil 120 may be integrated in the process of the backlight module 130 and located between the first polarizer 111 and the bottom of the back plate 131. The back plate 131 is a chassis of the backlight module 130, and can provide functions of carrying or protecting. In some embodiments, the material of the back plate 131 may include metal to provide load bearing or protection capabilities, but the disclosure is not limited thereto.

In some embodiments, the back plate 131 may include a bottom portion and a sidewall portion. The side wall portion is disposed on at least one periphery of the bottom portion, for example, the side wall portion may surround the periphery of the bottom portion and may form an accommodating space with the bottom portion. In addition, the backlight module 130 may further include at least one optical film, and the optical film may be disposed in the accommodating space of the back plate 131. For example, the optical films sequentially stacked in the accommodating space of the back plate 131 may include a reflective sheet 132, a light guide plate 133, a diffusion sheet 134, a prism sheet 135, a diffusion sheet 136, and the like. In addition, it should be understood by those skilled in the art that the backlight module 130 may also include other components to provide specific functions, and therefore, the present application is not limited thereto.

In some embodiments, the transmitting coil 120 may be located between the reflective sheet 132 of the backlight module 130 and the bottom of the back plate 131. Here, the transmitting coil 120 may be implemented by using a metal wire (such as, but not limited to, copper), a Flexible Printed Circuit Board (FPCB), a Printed Circuit Board (PCB), or other suitable manufacturing methods. In addition, electronic device 100 may further include magnetic shield sheet 140. Magnetism isolating sheet 140 may be disposed under transmitting coil 120 and between reflector 132 and the bottom of back plate 131. The magnetic shielding sheet 140 may be used to focus the magnetic field generated by the transmitting coil 120 to improve the magnetic energy utilization, or isolate other metals, such as a motherboard, a back cover of the electronic device 100, and the like, from interfering with the transmitting coil 120. In some embodiments, magnetic shield 140 may be implemented using Ferrite (Ferrite sheet), nickel-zinc material, manganese-zinc material, or other suitable magnetic shield material, but the application is not limited thereto.

Referring to fig. 5 and fig. 6, in some embodiments, the back plate 131 of the backlight module 130 may have an opening 131H, and the opening 131H is located below the reflective sheet 132. Also, the transmitting coil 120 may be disposed under the reflective sheet 132 at a position corresponding to the opening 131H. Here, the opening 131H is located at the bottom of the back plate 131.

In one embodiment, the transmitting coil 120 may overlap the opening 131H and contact the back plate 131, as shown in fig. 5. The opening 131H may be located between the reflective sheet 132 and the transmitting coil 120. Therefore, the transmitting coil 120 may be slightly larger than the opening 131H, and may be disposed below the bottom of the back plate 131 by, for example, an attaching manner.

In another embodiment, the transmitting coil 120 can be disposed in the opening 131H and contact the reflective sheet 132, as shown in fig. 6. Therefore, the transmitting coil 120 may be slightly smaller than the opening 131H, and may be disposed under the reflective sheet 132 exposed by the opening 131H by, for example, an attaching method.

In some embodiments, electronic device 100 may further include a magnetic shielding sheet 140, and magnetic shielding sheet 140 is disposed under transmitting coil 120. Herein, the purpose and implementation of the magnetic shielding sheet 140 can be referred to the foregoing description, and thus are not described in detail.

In some embodiments, the transmitting coil 120 may increase the charging efficiency of the object 200 to be charged by thickening and/or thickening the coil, enlarging the coil configuration area, and the like, but the present application is not limited thereto. For example, the output power of wireless charging can be increased from 3W (watt) to 5W to 7.5W, 10W, 15W …, etc., so that the electronic device 100 can achieve the effect of wireless charging with high output power when the object 200 to be charged is wirelessly charged.

In some embodiments, the transmitting coil 120 and the backlight module 130 may be connected to the pcb B1 by the same flexible printed circuit board a1, and the display module 110 may be connected to the pcb B1 by the flexible printed circuit board a2, but the disclosure is not limited thereto. In other embodiments, the transmitting coil 120 and the display module 110 may be connected to the pcb B1 by the same flexible printed circuit board a2, and the backlight module 130 may be connected to the pcb B1 by the flexible printed circuit board a 1.

In some embodiments, the electronic device 100 may further include a motherboard 150, a battery 160, and a back cover 170. The back cover 170 is an outermost shell of the electronic device 100 and can be used to provide accommodation or protection functions. For example, when the electronic device 100 is a mobile phone, the back cover 170 is a mobile phone shell. The main board 150 is electrically connected to the printed circuit board B1 and disposed under the backlight module 130, and is located between the backlight module 130 and the back cover 170. The battery 160 is electrically connected to the main board 150 and disposed under the main board 150 and located between the main board 150 and the back cover 170. It should be noted that in any embodiment of the present application, the transmitting coil 120 is located above the main board 150, so that the magnetic shielding sheet 140 is located between the transmitting coil 120 and the main board 150, thereby reducing the mutual interference between the main board 150 and the transmitting coil 120 when the electronic device 100 wirelessly charges the object 200 to be charged, and achieving good charging or displaying capability.

In some embodiments, the electronic device 100 may further include a receiving coil 180. The receiving coil 180 may be electrically connected to the battery 160. The receiving coil 180 is used for receiving the charging energy E2 (as shown in fig. 8) transmitted by the other electronic device 300, and providing the received charging energy E2 to the battery 160 to charge the battery 160. Here, the receiving coil 180 may be disposed below the main board 150 and between the main board 150 and the back cover 170.

Referring to fig. 7 and 8, in some embodiments, the electronic device 100 may further include a voltage regulating circuit 191, a power switching circuit 192, and a charge controller 193. The voltage regulating circuit 191 is electrically connected to the battery 160 and the power switching circuit 192. The charging controller 193 is electrically connected to the power switching circuit 192, the transmitting coil 120 and/or the receiving coil 180.

Referring to fig. 7, when the electronic device 100 is an energy emitting terminal, the battery 160 may output the charging energy E1 to the voltage regulating circuit 191. The voltage regulator circuit 191 may perform a voltage regulation operation, such as a boosting operation, on the charging energy E1, and then supply the charging energy E1 to the power switching circuit 192 to perform dc-to-ac switching. Thereafter, the charging controller 193 may cause the transmitting coil 120 to transmit the charging energy E1 out to the sensing coil 210 of the object to be charged 200 for wirelessly charging the object to be charged 200.

Referring to fig. 8, when the electronic device 100 is an energy receiving end, the charging controller 193 may receive the charging energy E2 transmitted by the other electronic device 300 through the receiving coil 180, and switch the received charging energy E2 from ac to dc through the power switching circuit 192. Then, the power switching circuit 192 outputs the charging energy E2, which has been switched, to the voltage regulating circuit 191. The voltage regulator circuit 191 is configured to perform a voltage regulation operation, such as a voltage stabilization operation, on the charging energy E2, and then output the charging energy E2 to the battery 160 to wirelessly charge the battery 160.

In some embodiments, the voltage regulating circuit 191, the power switching circuit 192 and the charging controller 193 may be disposed on the pcb B1 or the motherboard 150, respectively, but the disclosure is not limited thereto.

Referring to fig. 9, in some embodiments, the display side P1 (for example, refer to fig. 2) of the display module 110 of the electronic device 100 may include a display region P11 and a charging region P12. In some embodiments, the display region P11 may be all regions of the display screen of the electronic device 100 except the non-charging region P12. In other embodiments, the charging area P12 may also display a screen, but the present application is not limited thereto.

The charging area P12 can be used for the object 200 (not shown) to be charged to be placed (or placed) therein. In some embodiments, when the electronic device 100 is used as an energy emitting terminal, the display side P1 may display the boundary line of the charging area P12, and the user may set the object 200 to be charged in the charging area P12 accordingly. In addition, an orthographic projection of the charging region P12 on the normal direction of the array substrate 112 may at least partially overlap the transmitting coil 120. When the electronic device 100 wirelessly charges the object 200 to be charged, the charging region P12 at least partially overlaps the sensing coil 210 of the object 200 to be charged, or the orthographic projection of the sensing coil 210 in the normal direction of the array substrate 112 at least partially overlaps the transmitting coil 120, so that the electronic device 100 can charge the object 200 to be charged.

The display area P11 can be used to display pictures. For example, the display area P11 may display charging information of the object 200 to be charged so that the user can know the charging condition. The charging information may include, but is not limited to, information about the object 200 to be charged, such as the amount of electricity of the object 200 to be charged, the time required for completing charging, and the magnitude of the charging current, but the application is not limited thereto. In some embodiments, the display area P11 may also display a picture required to be displayed by the electronic device 100, such as a tablecloth picture, a use picture, and the like. The user can judge whether the placing position of the object 200 to be charged needs to be finely adjusted according to the charging information, and then the object 200 to be charged can achieve a good charging effect. In some embodiments, the object 200 may be smaller than or equal to the charging area P12, in other embodiments, the object 200 may be larger than the charging area P12, and when placed on the display side P1, the object may partially cover the display area P11, but the charging information of the display area P11 outside the covered portion may still be viewed, so that the user can know the charging condition.

Referring to fig. 10, in some embodiments, when the electronic device 100 wirelessly charges the object 200 to be charged on the display side P1 by using the charging energy E2 transmitted by the other electronic device 300, the transmitting coil 120 transmits the charging energy E1 to the object 200 to be charged, so as to wirelessly charge the object 200 to be charged.

It should be noted that features of the various embodiments can be mixed and matched arbitrarily without departing from the spirit or conflict of the invention.

In summary, the embodiments of the present application provide an electronic device, which transmits charging energy to an object to be charged on a display side through a transmitting coil located below a polarizer to wirelessly charge the object to be charged, so that a user can view a display image displayed by the electronic device when charging the object to be charged, and the added value of a display module can be increased. In addition, the mode of carrying out wireless charging is placed the target object of waiting to fill on the demonstration side of the electron device of any embodiment of this application, can be favorable to user's operation for the user can have better use experience, or has better integration in the function.

Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device, characterized in that:

a display module including a polarizer;

a backlight module, located under the display module, including a back plate; and

and the transmitting coil is positioned between the polarizing plate and the back plate.

2. The electronic device of claim 1, wherein the backlight module further comprises:

a reflector plate, wherein the transmitting coil is located between the reflector plate and the back plate.

3. The electronic device of claim 2, further comprising:

and the magnetic shielding sheet is positioned between the transmitting coil and the back plate.

4. The electronic device of claim 1, wherein the display module further comprises:

an array substrate located between the polarizer and the back plate; and

and the opposite substrate is positioned between the array substrate and the polarizing plate, and the transmitting coil is positioned between the array substrate and the opposite substrate.

5. The electronic device of claim 1, wherein the display module further comprises:

an array substrate located between the polarizer and the back plate; and

and the opposite substrate is positioned between the array substrate and the polarizing plate, and the transmitting coil is positioned between the opposite substrate and the polarizing plate.

6. An electronic device as claimed in claim 1, characterized in that the display side comprises:

a display area for displaying a display image; and

a charging area for setting a target to be charged.

7. An electronic device, characterized in that:

a display module;

a backlight module, located under the display module, including a back plate and a reflector plate, where the reflector plate is arranged in the containing space of the back plate and the back plate has an opening; and

and the transmitting coil is arranged below the reflecting sheet corresponding to the opening.

8. The electronic device of claim 7 wherein the transmitting coil contacts the back plate and the opening overlaps the transmitting coil.

9. The electronic device as claimed in claim 7, wherein said transmitting coil is disposed in said opening and contacts said reflective sheet.

10. An electronic device, characterized in that:

a display module having a display side and including a polarizing plate; and

and the transmitting coil is positioned below the polarizing plate and used for transmitting charging energy to the induction coil of an object to be charged positioned on the display side so as to wirelessly charge the object to be charged.