KR20150097164A - Mobile Phone Case Including Display Panel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cellular phone case, and more particularly, to a cellular phone case for facilitating use of a self-camera mode by mounting a display, wherein the cellular phone case includes a display panel, A main body portion contacting the main body portion; A lid part which is foldably connected to one side of the body part and covers the front display part of the cellular phone in a closed state; A lens hole of the main body part and the lid part corresponding to the camera of the mobile phone; An inner display unit of the lid unit facing the front display unit of the mobile phone; And a connection portion for transmitting a signal from the cellular phone to an inner display portion of the lid portion. The present invention can mount a display panel on a mobile phone case to allow a user to view a user's image during self-photographing so that a rear-view camera can be used, so that not only high-quality pictures can be taken, So that the function of the mobile phone case can be further enhanced and the use of the mobile phone can be made more convenient.

Description

A mobile phone case including a display panel {Mobile Phone Case Including Display Panel}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone case, and more particularly, to a mobile phone case equipped with a display to facilitate the use of the self-camera mode.

Currently, many users are using mobile phones (including smart phones) because of convenience that they can make calls conveniently regardless of places. With the launch of smart phones, more internet access functions and program execution functions are added, In addition, video playback, game machine, and audio playback functions have been performed. Moreover, since the camera and the camera installed in the mobile phone are used for photographs and movies, and the photographed pictures and videos are played through the mobile phone, And the effect that it does not need was provided. In particular, there is a demand for a preview function capable of checking the focus, zoom, and the like in real time when shooting in the 'self camera' mode. Korean Unexamined Patent Application Publication No. 2006-0035499 discloses a communication terminal having a rotatable camera module and a rotatable camera module used thereon, but as the camera module develops a megapixel unit and an optical zoom structure, There is a problem that the size of the camera module is limited.

Smart phones equipped with a camera module on the front and rear of the handset have been released. However, in general, the front camera has a lower pixel count than the rear camera. Therefore, in order to take a picture of the user viewing the display, , It is difficult to obtain a precise picture because it is impossible to preview the state of photographing using the rear camera.

On the other hand, mobile phones are being sold at a very high price for now and now, regardless of the times. Currently available mobile phones are equipped with ultra-thin large-format displays and high-quality compact digital cameras. Therefore, the above-mentioned mobile phone is very vulnerable to impact or moisture, so it must be handled very carefully when handling it. However, even with careful handling of the mobile phone, there is a high possibility of dropping it on the floor, and sweat from the hands during use can easily penetrate the inside. Thus, a mobile phone case corresponding to each mobile phone shape has been developed. The first mobile phone case, which is made of hard plastic material, is divided into a front part and a rear part to cover the entire mobile phone. However, the above-mentioned mobile phone case has a disadvantage in that it is very inconvenient to remove and attach to the mobile phone because there is little elasticity, and when the mobile phone is detached and attached to the mobile phone, it damages the mobile phone and the hand is sweaty.

In order to solve the above-mentioned drawbacks, Korean Unexamined Patent Publication No. 2002-0098005 discloses a protective case for a portable device, which is detachably coupled to the back surface of the portable device to protect the portable device. In addition to the above-mentioned patent, a mobile phone case made of a soft and elastic soft urethane material rather than a hard plastic material has been developed, which is mounted only on the rear surface of the mobile phone. Since the material is smooth and is mounted only on the back side of the mobile phone, it is very easy to attach to and detach from the mobile phone, there is no fear of damaging the mobile phone, the slip does not easily slide even when the hand is sweaty, .

However, most of the above-mentioned conventional mobile phone cases are developed only for protecting the mobile phone as described above, and there is no other functional element that can facilitate the use of the mobile phone or provide convenience to the mobile phone user There is a limit.

Korea Patent Publication No. 2006-0035499 Korean Patent Publication No. 2012-0098005

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a mobile phone case that provides convenience for a user when using a self-camera by attaching a display panel.

The present invention relates to a mobile phone case including a display panel, the mobile phone case including: a main body portion contacting a rear surface of the mobile phone; A lid part which is foldably connected to one side of the body part and covers the front display part of the cellular phone in a closed state; A lens hole of the main body part and the lid part corresponding to the camera of the mobile phone; An inner display unit of the lid unit facing the front display unit of the mobile phone; And

And a connection part for transmitting a signal from the cellular phone to an inner display part of the lid part.

The present invention also relates to a mobile phone case including a display panel, wherein the mobile phone case includes: a main body portion contacting the rear surface of the mobile phone; A lens hole of the main body portion corresponding to a camera of the mobile phone; An outer surface display unit positioned on an opposite surface of the main body portion in contact with the mobile phone; And a connection portion for transmitting a signal from the cellular phone to the outer surface display portion.

The present invention also provides a cellular phone case including the display panel, wherein the body portion further includes a case side portion that contacts the side surface of the cellular phone.

The present invention also provides a mobile phone case including a display panel for outputting images of front and rear cameras of the mobile phone.

The present invention also provides a cellular phone case including the display panel, wherein the connection portion is a wireless communication device.

The present invention also provides a cellular phone case including a display panel, wherein the wireless communication device is one of Bluetooth, Zigbee, and WiFi.

The present invention further provides a cellular phone case including a display panel, further comprising a power supply unit for supplying power to the display panel to the wireless communication apparatus.

The present invention also provides a cellular phone case including a display panel, wherein the power unit is a secondary battery.

The present invention also provides a cellular phone case including the display panel, wherein the display panel is an LCD panel or an OLED panel.

The present invention also provides a mobile phone case including a display panel having an IPS (In-Plane Switching) -type or FFS (Fringe Field Switching) -type display panel.

The present invention also provides a cellular phone case including a display panel, wherein the OLED panel is an AMOLED (Active Matrix Organic Light Emitting Diodes).

The present invention also provides a cellular phone case including a display panel, wherein the front display portion of the cellular phone and the inner display portion of the lid portion are usable as a dual display.

The present invention can mount a display panel on a mobile phone case to allow a user to view a user's image during self-photographing so that a rear-view camera can be used, so that not only high-quality pictures can be taken, So that the function of the mobile phone case can be further enhanced and the use of the mobile phone can be made more convenient.

1 is a perspective view of a mobile phone case including an inner display unit.
2 is a perspective view of a mobile phone case including an outer surface display unit.
3 is a perspective view showing an example of use of a mobile phone case including an inner display unit during self photographing of a camera of the mobile phone.
4 is a schematic diagram showing the structure of the LCD and the screen output principle.
5 is a schematic diagram showing a cross section of an IPS type cell and an operation principle thereof.
6 is a perspective view showing an example of use of a mobile phone case including an inner display unit when used as a dual display.
7 is a perspective view showing an example in which a front display of a mobile phone is used as a keyboard when used as a dual display.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Here, in the entire drawings for explaining the embodiments of the present application, those having the same functions are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The present invention relates to a mobile phone case (100), and discloses a mobile phone case (100) including a display panel (60) for mounting a display panel (60) to facilitate the use of a self camera mode.

In one aspect, the present invention is a cellular phone case 100 including a display panel 60 as shown in FIG. 1, wherein the cellular phone case 100 includes a body portion 30 that contacts a rear surface of the cellular phone 200; A lid 40 which is foldably connected to one side of the body 30 and covers the front display part 63 of the mobile phone 200 in a closed state; A lens hole of the main body part 30 and the cover part 40 corresponding to the camera of the mobile phone 200; An inner display unit 61 of the lid unit 40 facing the front display unit 63 of the mobile phone 200; And a connection part for transmitting a signal from the mobile phone 200 to the inner surface display part 61 of the cover part 40. [

2, the mobile phone case 100 includes a main body 30 which contacts the rear surface of the mobile phone 200, and a display panel 60, ; A lens hole (50) of the main body (30) corresponding to the camera of the mobile phone (200); An outer surface display part (62) located on the opposite side of the main body part (30) in contact with the mobile phone (200); And a connection part for transmitting a signal from the cellular phone 200 to the external surface display part 62.

In one embodiment of the present invention, the main body portion 30 further includes a case side portion which is in contact with a side surface of the mobile phone 200. The mobile phone 200 also includes a mobile phone case 100 in which the rear surface of the mobile phone 200 and the vicinity of the edge of the front surface of the side mobile phone 200 are wrapped and a hole 100 is formed in the main body 30 and the side surface of the mobile phone case 100 .

The cover unit 40 covers the front display unit 63 of the mobile phone 200 and the inner display unit 61 of the cover unit 40 by covering the front display unit 63 of the mobile phone 200 in a closed state. And can be tilted backward of the main body portion 30 in an open state. 3 is a perspective view showing an example of use of a mobile phone case 100 including an inner display unit during self photographing of the camera of the mobile phone 200. [ For example, when the self-camera mode is used, the back camera of the mobile phone 200 is aligned with the lens hole 50 with the lid 40 opened and the back of the main body 30, Self-photographing is possible with the rear camera of the mobile phone 200 having high image quality while viewing the screen.

The lens hole 50 is formed in the main body portion 30 and the lid portion 40 of the mobile phone case 100 according to the design of all the mobile phones 200 commercially available, .

Most of the mobile phones 200 currently on the market are equipped with cameras on the front and back sides. The cameras installed on the front side are for self-photographing, and the image quality is poor. However, Is high. When the self-photographing is performed using the camera mounted on the rear surface of the mobile phone 200, the inner surface display portion 61 of the lid unit 40, which is located opposite to the front display portion 63 of the mobile phone 200, Since the self-photographing is possible while confirming the self-view through the outer surface display part 62 positioned on the opposite side to the mobile phone 200, the use of the camera of the mobile phone 200 can be very convenient.

The display panel 60 refers to both the inner surface display portion 61 and the outer surface display portion 62 of the cellular phone case 100. In this case, And particularly an LCD panel or an OLED panel.

The display panel 60 is a panel for outputting a screen used for a TV, a computer monitor, a smart phone, etc. The mobile phone 200 mainly uses an LCD panel and an OLED panel.

LCD panels are often referred to as liquid crystal displays, in which a voltage is applied to a liquid crystal and an image is output using a backlight. Since the backlight is required, the thickness of the panel is relatively large, but the power consumption is relatively low and convenient for portable use.

At the core of the LCD is a liquid crystal (LCD), which is a device that displays a screen. A panel of regularly arranged liquid crystals is placed on the front surface, and a backlight behind it is illuminated. Each liquid crystal element has an internal arrangement of molecules according to an external electrical signal, and has a certain pattern of directionality. As a result, the light transmitted through the backlight is refracted in different patterns while passing through the liquid crystal. When the light passes through the color filter and the polarizing filter in front of the liquid crystal panel, a single pixel with different colors and brightness pixel: one point that constitutes the screen), so that they form a whole screen. Of course, unlike the above, depending on the external light without the backlight, and sometimes only the black and white screen may be displayed, and the detailed structure differs depending on the manufacturer or the product. The initial LCD used a CCFL (Cold Cathode Fluorescent Lamp) backlight. CCFL has the advantage of low production cost, but short life span and high power consumption. However, by 2010, LCDs equipped with LED (Light Emitting Diode) backlight have started to spread in earnest. The LED backlight has a long life span, low power consumption, and is capable of emitting uniform light throughout the screen, which is mainly used in high-end display devices.

The liquid crystal mode of the LCD panel is classified according to the initial liquid crystal alignment. TN, horizontal alignment, vertical alignment, optically compensated bend (OCB) in which liquid crystal is continuously twisted from the top plate to the bottom plate, , Polymer dispersed LC (PDLC), which is a mixture of polymer and liquid crystal. TN mode is the oldest liquid crystal mode in the LCD industry and is produced by all LCD companies with excellent light efficiency and process margin. However, in order to overcome the narrow viewing angle, various methods such as a dual domain TN (DDTN) and a quadruple domain TN (FDTN: four.domain TN) have been proposed. Currently, a discotic ) WV (wide.view) with a polymer optical film having a molecular structure of TN. TN forms the main axis of high-definition TN. In the horizontal alignment mode, the IPS type dominates in the beginning, but some companies are shifting to the FFS type with excellent electro-optic characteristics.

In one embodiment of the present invention, the LCD panel is an IPS (In-Plane Switching) -type or a FFS (Fringe Field Switching) -type.

In-Plane Switching (IPS) - A new concept to solve the disadvantages of TN mode is proposed in 1992. Initial liquid crystal molecules are arranged without twist between the upper and lower plates, and horizontal electric field To rotate the liquid crystal molecules parallel to the substrate. 5 shows a cross-sectional view and operation principle of the IPS type cell. The transmittance of the IPS-type cell can be expressed by the equation T = Tosin ² (2Φ) sin ² (π dΔn / λ), where Φ is the angle between the optical axis of the liquid crystal and the transmission axis of the polarizer. Since the liquid crystal is aligned horizontally uniformly without twist between the upper plate and the lower plate before the electric field is applied and the liquid crystal optical axis (long axis) coincides with the transmission axis of the upper plate or the lower plate among the crossed polarizers (? = 0) The polarized state does not change and the light is absorbed by the photometric plate to show a dark state. Unlike the structure of the TN type cell, in the IPS type cell, the common electrode and the signal electrode exist at a constant distance only to the lower substrate. There is only a horizontal electric field between the electrodes as shown in FIG. 5 when the electric field is applied because the distance between the electrodes is larger than the electrode width. When a certain angle exists between the horizontal electric field and the liquid crystal director, a dielectric rotation force acts on the liquid crystal to rotate the liquid crystal molecules parallel to the substrate. As the light progresses, the incident linearly polarized light passes through the liquid crystal layer, and the phase delay is felt. When Φ is 45 ° and the phase delay value of the cell shows the optimum value, the linearly polarized light is rotated by 90 °. In general, The elliptically polarized light coincides with the photometric plate, allowing light to pass through. In addition, the viewing angle dependency of image quality is smaller than that of the TN type cell because the difference in the effective phase delay value is small depending on the viewing angle. On the other hand, in the IPS type cell, the liquid crystal (dotted bar) rotates only in one direction when a voltage is applied as in the case of a 1D structure, so that the screen becomes bluish or yellow depending on whether the liquid crystal molecule is shortened or long- . To solve this problem, a 2D (2-domain) structure has been proposed. In this structure, the pixels are divided into two regions, and the electric field direction is mirror-symmetrical with respect to each other. Can be reduced.

FFS (Fringe Field Switching) - FFS mode has been developed to overcome the disadvantages of IPS type cells. The initial liquid crystal array is the same as IPS type. However, the electrode structure is unlike the IPS-type in the FFS type always the distance is smaller than the electrode width between the electrodes, or (l / w <1) the common electrode and the distance signal (common) electrode kkiriman gap does not exist between the signal electrode (l / w = 0). An insulating film exists between the two electrodes, and there is a fringe electric field having horizontal and vertical components (Ey, Ez) in the electric field distribution. More specifically, in the edge region of the slit electrode, there exists only a strong horizontal electric field component, and in the center of the slit electrode, there exists only a vertical electric field, so both horizontal and vertical electric field components exist. Due to the area in which the horizontal and vertical electric field components coexist, the electrooptical characteristics of the FFS type greatly vary depending on the dielectric anisotropy code of the liquid crystal. In addition, when the fringe electric field exists, the intensity of the horizontal electric field for rotating the liquid crystal varies depending on the position. In the FFS-type cell, the liquid crystal molecules rotate at the upper portion of the electrode, so that the transmittance is high in the entire region. Therefore, in order to maximize the transmittance, the electrodes must consist of transparent electrodes. For this reason, there is a disadvantage that two transparent ITO layers are required and one mask is added to the conventional TN process. However, since the liquid crystal molecule rotates parallel to the substrate and rotates in the entire region as in the IPS concept, it can be said that it is a liquid crystal mode having a high transmittance and a wide viewing angle characteristic. The FFS type has many advantages such as high transmittance and low voltage driving, so it is applied to all products and many companies are now using FFS technology.

In one embodiment of the present invention, the OLED panel is an AMOLED (Active Matrix Organic Light Emitting Diodes).

OLED panel is an organic material made by using light emitting phenomenon when current flows in a fluorescent organic compound, and the image quality reaction speed is 1,000 times faster than an ultra-thin liquid crystal display (TFT-LCD) It is the next generation flat panel display. It produces light close to natural light, and consumes less energy. It is divided into passive matrix (PM) and active matrix (AM) according to the driving method and features self-emission, wide viewing angle, ultra-thin and low power. Mobile phones, camcorders, personal digital assistants (PDAs), and the like. It can reduce thickness and weight to one-third of LCD (liquid crystal display), which is followed by PDP (plasma display pane) and LCD

Among these, AMOLED (Active Matrix Organic Light Emitting Diodes) is a type of OLED, which is also called an active type organic light emitting diode. AMOLED is a microsecond (μs) unit with a video response rate of one millionth of a second. This is 1000 times faster than the TFT LCD in milliseconds (milliseconds), which is one thousandth of a second, and resolves the afterimage of the video which is pointed out as a problem of TFT LCD. In addition, since it is self-luminous, it does not need a backlight unit that shoots light from the back like TFT LCD, so it can reduce thickness and weight to one third of TFT LCD. The allocated space can be allocated to increase the battery capacity. Also, unlike TFT LCD, color reproducibility is uniform at high temperature and low temperature, and since it is self-emission type, the contrast ratio does not vary depending on brightness (viewing angle) or viewing angle. Therefore, it can be clearly seen without being invisible under bright illumination like a TFT LCD, and the viewing angle problem can be solved.

In addition, the present invention includes a connection unit for transmitting a signal from the mobile phone 200 to the inner display unit 61 of the lid unit 40, and the connection unit is a wireless communication device. The wireless communication device uses one of Bluetooth, Zigbee, and WiFi.

Bluetooth is a short-range wireless technology standard for exchanging information by connecting mobile devices such as mobile phones, laptops, earphones, and headphones. It is used when a low-power wireless connection is required in very short distances, typically about 10 meters. Bluetooth's wireless system uses the ISM (Industrial Scientific and Medical) frequency band of 2400 to 2483.5 MHz, except for the range from 2400 MHz to 2 MHz, 2483.5 MHz to 3.5 MHz to prevent interference with other systems using up and down frequencies. 2402 ~ 2480MHz, total 79 channels are used. ISM is a frequency band allocated for industrial, scientific, and medical purposes. It is used for personal wireless devices that emit low-power radio waves because they do not need permission to use radio waves. Amateur radio, wireless LAN and Bluetooth use this ISM band. do. Since the system uses the same frequency band as many systems, interference between systems may occur. To prevent this, Bluetooth adopts a frequency hopping method. Frequency hopping is a technique for quickly moving a large number of channels according to a specific pattern and transmitting the packets (data) little by little. Bluetooth hopes 1600 times per second to the assigned 79 channels, in which the hopping pattern is synchronized between the Bluetooth devices. Bluetooth is connected to the master and slave configurations between devices. If the slave device can not be synchronized with the frequency hopping generated by the master device, communication between the two devices is not performed. As a result, it is possible to stably connect to other systems by avoiding radio interference. Up to 7 slave devices can be connected to one master device, and communication between the master device and the slave devices is possible only, but communication between the slave devices is impossible. However, since the roles of master and slave are not fixed, they can change roles depending on the situation.

Another communication device used in the present invention is a Zigbee. Zigbee is one of the IEEE 802.15.4 standards supporting short-range communication. It is a technology for short-range communication and ubiquitous computing of about 10 ~ 20m in the wireless networking field of home and office. In other words, the space cost is the concept of cellular phone or wireless LAN, and the other technology and the other features are the concept of communicating a small amount of information instead of minimizing power consumption. Intelligent home network, buildings, etc., and is used for automation of industrial equipment, logistics, environmental monitoring, human interface, telematics, and military. It is small size, low power consumption and low price. have. Also, instead of minimizing power consumption, it is possible to transmit data at a rate of 250kbps within a radius of 30m, which allows a small amount of information to be communicated, and 255 units can be connected to one wireless network.

Another communication device, Wi-Fi, is an abbreviation of wireless fidelity. It is a wireless LAN technology that combines wireless technology with Hi-Fi (high-fidelity) and enables high-performance wireless communication. A wireless LAN is a method of building a network by using radio waves or light, instead of using wires, when building a network. It is compatible with 802.11b, and it is the most widely used wireless internet standard that has been proposed by companies such as 3Com, Cisco, Apple, and Lucent Technologies in USA. They have formed an organization called wireless ethernet compatibility and are developing networking equipment that allows consumers to connect their home computers over a wireless network and share a single Internet connection. It uses the 2.4GHz frequency band and was approved as a wireless LAN standard in September 1999. This technology will enable notebook computers to be connected wirelessly around the house. And with this high-speed technology, you can connect more than five PCs and transfer large files, graphics, video and audio. Wireless Ethernet offers speeds of 11 Mbps per second and can be used anywhere in the 500-meter radius under optimal conditions and can be used at home or at work.

The present invention further includes a power supply for supplying power to the display panel 60 to the wireless communication.

The power source unit is a secondary battery, and is a battery which can be charged semi-permanently. The secondary battery refers to a battery which can be used semi-permanently by charging the generated electricity generated by the current supplied to the external power source in the process of causing the oxidation / reduction reaction of the material between the anode and the cathode. The secondary battery is composed of four core materials such as a separator, a cathode material, an anode material, and an electrolyte. There is a disadvantage that the primary battery used once and then discarded is not reusable, and the cost of recharging or recharging the battery is large. On the other hand, the secondary battery has a merit that it can be charged several times.

The mobile phone case 100 including the display panel 60 of the present invention can view a user's image at the time of a self photographing so that a back camera can be used and not only a high quality photograph can be taken, It is possible to push the mobile phone 200 in a place where photographing or visibility is difficult to be performed and confirm with the display, thereby overcoming the limitations of the conventional mobile phone case developed only for the purpose of protecting the mobile phone 200, It has an effect of making the use of a mobile phone more convenient as well as a higher level.

The front display 63 of the mobile phone and the inner display 61 of the lid can be used as a dual display. As shown in FIG. 6, the inner display 61 reproduces a moving picture, The front display unit 63 of the mobile phone 100 can use the web search or other functions of the mobile phone at the same time. 7, the inner display 61 displays a message screen and the front display 63 of the mobile phone outputs a keyboard keypad to a display to display characters This makes it possible to reduce the mistyping of messages.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

All technical terms used in the present invention are used in the sense that they are generally understood by those of ordinary skill in the relevant field of the present invention unless otherwise defined. The contents of all publications referred to herein are incorporated herein by reference.

100. Cell phone case
200. Mobile phone
30. Body part
40. Cover
50. Lens Hole
60. Display panel
61. Internal display section
62. External surface display section
63. The front display unit of the mobile phone

Claims (12)

A mobile phone case including a display panel,
The mobile phone case includes: a main body portion that contacts the rear surface of the mobile phone;
A lid part which is foldably connected to one side of the body part and covers the front display part of the cellular phone in a closed state;
A lens hole of the main body part and the lid part corresponding to the camera of the mobile phone;
An inner display unit of the lid unit facing the front display unit of the mobile phone; And
And a connection portion for transmitting a signal from the cellular phone to an inner display portion of the lid portion.
A mobile phone case containing a display panel.
A mobile phone case including a display panel,
The mobile phone case includes: a main body portion that contacts the rear surface of the mobile phone;
A lens hole of the main body portion corresponding to a camera of the mobile phone;
An outer surface display unit positioned on an opposite surface of the main body portion in contact with the mobile phone; And
And a connection portion for transmitting a signal from the cellular phone to the outer surface display portion.
A mobile phone case containing a display panel.
3. The method according to claim 1 or 2,
Wherein the main body portion further includes a case side portion that contacts the side surface of the cellular phone,
A mobile phone case containing a display panel.
3. The method according to claim 1 or 2,
The display panel may include a front panel and a rear panel,
A mobile phone case containing a display panel.
3. The method according to claim 1 or 2,
Wherein the connection unit is a wireless communication device,
A mobile phone case containing a display panel.
6. The method of claim 5,
Wherein the wireless communication device is one of Bluetooth, Zigbee, and WiFi,
A mobile phone case containing a display panel.
6. The method of claim 5,
Further comprising a power supply for supplying power to the display panel to the wireless communication device,
A mobile phone case containing a display panel.
8. The method of claim 7,
The power supply unit may be a secondary battery,
A mobile phone case containing a display panel.
3. The method according to claim 1 or 2,
The display panel may be an LCD panel or an OLED panel.
A mobile phone case containing a display panel.
10. The method of claim 9,
The LCD panel may be an IPS (In-Plane Switching) -type or FFS (Fringe Field Switching) -type,
A mobile phone case containing a display panel.
10. The method of claim 9,
The OLED panel may be an AMOLED (Active Matrix Organic Light Emitting Diodes)
A mobile phone case containing a display panel.
The method according to claim 1,
The front display unit of the mobile phone and the inner display unit of the lid unit can be used as a dual display,
A mobile phone case containing a display panel.

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