KR20090059335A - Disply panel - Google Patents

Abstract

A display panel is provided to improve impact-resistance by forming a display region through a FPCB(Flexible Printed Circuit Board). A display panel includes a display region(210), a plurality of first electrode lines, and a plurality of second electrode lines. The display region performs an image. A groove(220) is formed in one side of the display region. A plurality of first electrode lines is horizontally formed on a rest display region except for the groove. A plurality of second electrode lines crosses a plurality of first electrode lines, and is formed on a rest display region except for the groove. The display region is made of metal or plastic material. The display region is made of FPCB. The first electrode line is a scan electrode line. The second electrode line is a data electrode line.

Description

Display panel {Disply panel}

The present invention relates to a display panel, and more particularly to a display panel used in a portable terminal.

Today, the demand for portable terminals such as mobile phones, personal digital assistants (PDAs), portable multimedia players (PMPs), etc. increases, and multimedia functions supported by the portable terminals increase.

1 is an external view showing a conventional portable terminal.

Referring to FIG. 1, a portable terminal 1 such as a personal digital assistant (PDA) or a portable multimedia player (PMP) includes a display area 10 for displaying various information and multimedia on a front surface of a main body, and a user by the portable terminal. It is largely divided into the area | region 20 in which the key 21 which can operate the specific function of (1) was formed.

That is, a display panel is formed only up to the display region 10, and a substrate for mounting the operation key 21 on the portable terminal 1 is formed in the key formation region 20.

Currently, as the multimedia function is advanced, the display area 10 is increasing in size due to user's request.

However, even if the display area 10 is to be extended from the front of the portable terminal 1, the key forming area 20 for mounting the operation key 21 is provided on the front of the portable terminal 1 as described above. There is a problem in that the display area 10 is limited in expanding.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and an object of the present invention is to provide a display panel which can use the entire remaining area as a display area except for an operation key formed on the front of the portable terminal.

According to an aspect of the present invention, there is provided a display panel including: a display area in which a groove is formed in one region and an image is formed; A plurality of first electrode lines formed in a horizontal direction in the remaining display area except for the grooves; And a plurality of second electrode lines formed in the display area except for the groove so as to cross the first electrode lines.

In this case, the display area may be formed of a flexible printed circuit board made of a metal or plastic material.

In addition, the first electrode line may be a scan electrode line, and the second electrode line may be a data electrode line.

In addition, the groove may be formed in one region of the display area to mount at least one key for performing a specific function of the portable terminal, and occupy an area of 1 to 40% of the total area of the display area.

The groove may be at least one of a circle, a rectangle, a triangle, and a closed curve shape.

The display panel may further include a first electrode line driver configured to supply a first signal to one or both sides of the first and second sides of the display area that face each other.

In this case, the first electrode lines are formed in parallel from the first side to the second side, and the first electrode line driver supplies a first signal to the first electrode lines of the first and second sides.

In addition, the first electrode lines are formed in parallel from the first side to the second side, and are formed by bypassing the groove in a region corresponding to the groove, and the first electrode line driving part is formed on the first and second sides. The first signal is supplied to the first electrode lines on either side.

The display panel may further include a second electrode line driver configured to supply a second signal to any one or both sides of the third and fourth sides of the display area facing each other.

In this case, the second electrode lines are formed in parallel from the third side to the fourth side, and the second electrode line driver supplies a second signal to the second electrode lines of the third and fourth sides.

In addition, the second electrode lines may be formed in parallel from the third side to the fourth side, and are formed by bypassing the groove in a region corresponding to the groove, and the second electrode line driver may be formed on the third and fourth sides. The second coral is supplied to the second electrode lines on either side.

The display panel according to the present invention can display the remaining areas except for the operation keys formed on the front of the portable terminal, thereby increasing the display area.

In addition, since the display area is formed using a flexible printed circuit board (hereinafter, referred to as FPCB), the display panel can be protected from external shock.

The display panel according to the present invention can be applied to various types of portable terminals such as a mobile phone, a smart phone, a broadcast receiving terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, and the like. Hereinafter, for the sake of simplicity, the display panel according to the present invention will be described as an example applied to a mobile communication terminal, but the present invention is not limited thereto.

Hereinafter, a portable terminal related to the present invention will be described with reference to the drawings.

2 is a block diagram of an example of a portable terminal related to the present invention.

The illustrated portable terminal 100 includes a wireless communication unit 110, an A / V input unit 120, an operation unit 130, a sensing unit 140, an output unit 150, and a storage unit 160. , An interface unit 170, a controller 180, and a power supply unit 190 may be included. Note that the components may be omitted individually when needed in actual application, two or more components may be combined into one component, or one component may be divided into two or more components. Should be.

Hereinafter, the components will be described in turn.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short range communication module 114, a GPS module 115, and the like.

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems, and in particular, digital multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), and media forward link (MediaFLO). Digital broadcast signals can be received using digital broadcasting systems such as only), digital video broadcast-handheld (DVB-H), integrated services digital broadcast-terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the storage 160.

In addition, the mobile communication module 112 transmits and receives a radio signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access, and the wireless internet module 113 may be internal or external.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

In addition, the Global Position System (GPS) module 115 receives position information from a plurality of satellites.

The A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera module 121 and a microphone module 122. The camera module 121 processes an image frame such as a still image or a video obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display panel 151.

The image frame processed by the camera module 121 may be stored in the storage 160 or transmitted to the outside through the wireless communication unit 110. Two or more camera modules 121 may be provided according to the configuration of the terminal.

The microphone module 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone module 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The operation unit 130 generates key input data input by the user for controlling the operation of the terminal. The operation unit 130 may include a navigation key, a key pad, a dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like. In particular, when the touch pad forms a mutual layer structure with the display panel 151 described later, the touch pad may function as a touch screen.

In addition, the operation unit 130 may be equipped with operation keys such as navigation keys on the front of the portable terminal (100).

The sensing unit 140 controls the operation of the mobile terminal 100 by detecting a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, a presence or absence of a user contact. To generate a sensing signal. For example, when the portable terminal 100 is in the form of a slide phone, whether the slide phone is opened or closed may be sensed. In addition, it is responsible for sensing functions related to whether the power supply unit 190 is supplied with power or whether the interface unit 170 is coupled to an external device.

The interface unit 170 serves as an interface with all external devices connected to the portable terminal 100. For example, wired / wireless headsets, external chargers, wired / wireless data ports, card sockets (e.g. memory cards, SIM / UIM cards), audio input / output (I / O) terminals, video There are I / O (Input / Output) terminal, earphone terminal, USB (Universal Serial Bus) connection terminal. The interface unit 170 receives various signals (including audio and video signals) from an external device or receives power and transmits them to each component inside the portable terminal 100 or various signals inside the portable terminal 100. Make sure that (audio and video signals) are transmitted to the external device.

In particular, the portable terminal 100 may be connected to an external device such as a personal computer such as a desktop, a notebook or a handheld through a USB connection terminal, for example, according to a multimedia content management protocol such as a media transfer protocol (MTP). Can be. When the portable terminal is connected according to the multimedia content management protocol, it does not necessarily have to be through the USB connection terminal. For example, the portable terminal may be connected to the external device through the short range communication module according to a multimedia content management protocol.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal, and may include a display panel 151, a sound output module 152, and an alarm output module 153.

The display panel 151 displays and outputs information processed by the portable terminal 100. For example, when the mobile terminal 100 is in a call mode, the mobile terminal 100 displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the portable terminal 100 is in a video call mode or a photographing mode, the portable terminal 100 displays a photographed and / or received image, a UI, or a GUI.

Meanwhile, as described above, when the display panel 151 and the touch pad form a mutual layer structure and constitute a touch screen, the display panel 151 may be used as an input device in addition to the output device.

The display panel 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, or a three-dimensional display. It may include at least one of (3D display). In addition, two or more display panels 151 may exist according to the implementation form of the portable terminal 100. For example, the external display panel (not shown) and the internal display panel (not shown) may be simultaneously provided in the portable terminal 100.

The structure of the display panel 151 according to the present invention will be described later in detail.

The sound output module 152 outputs audio data received from the wireless communication unit 110 or stored in the storage unit 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the sound output module 152 outputs a sound signal related to a function (for example, a call signal reception sound, a message reception sound, etc.) performed in the portable terminal 100. The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm output module 153 outputs a signal for notifying occurrence of an event of the portable terminal 100. Examples of events generated in the portable terminal 100 include call signal reception, message reception, key signal input, and the like. The alarm output module 153 may output a signal for notifying occurrence of an event in a form other than an audio signal or a video signal. For example, the signal may be output in the form of vibration. When a call signal is received or a message is received, the alarm output module 153 may output a vibration to notify this. Alternatively, when a key signal is input, the alarm output module 153 may output a vibration in response to the key signal input. Through the vibration output as described above, the user can recognize the occurrence of the event. Of course, audio and video signals for event occurrence notification may also be output through the display panel 151 and the voice output module 152.

The storage unit 160 may store a program for processing and controlling the controller 180, and a function for storing input / output data (for example, a phone book, a message, a still image, a video, etc.). You can also do

The storage unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (for example, SD or XD memory). At least one type of internal, external, or external storage medium.

The controller 180 typically controls the overall operation of the portable terminal 100. Perform related controls and processing, for example, for multimedia playback, data communications, video calls, and the like.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Hereinafter, the structure of the display panel 151 according to the present invention will be described in detail.

3 is a circuit diagram illustrating pixels of a display panel according to the present invention.

Referring to FIG. 3, each pixel of the display panel display area 210 according to the present invention may include a switching thin film transistor (TFT) (M2), at least two thin film transistors of the driving TFT (M1); , A storage capacitor Cst, and an organic light emitting diode (OLED).

The switching TFT M2 is turned on / off by a scan signal applied from the scan driver 230 to the scan electrode line Scan, and stores a data signal applied from the data driver 240 to the data electrode line Data. It transfers to the capacitor Cst and the driving TFT M1.

The driving TFT M1 determines the amount of current flowing into the OLED from the Vdd line according to the data signal transmitted through the switching TFT M2. The storage capacitor Cst stores a data signal transmitted through the switching TFT M2 for one frame.

In the circuit diagram according to FIG. 3, the driving TFT M1 and the switching TFT M2 are illustrated as PMOS TFTs, but the present invention is not limited thereto, and at least one of the driving TFT M1 and the switching TFT M2 is not limited thereto. Can be formed of an NMOS TFT, of course. In addition, the number of the thin film transistors and capacitors as described above is not necessarily limited thereto, and of course, a larger number of thin film transistors and capacitors may be provided.

4 is a structural diagram showing a display area of a display panel according to the present invention.

Referring to FIG. 4, as already mentioned in the related art, an existing display area and a key formation area are formed separately on the front of the portable terminal, so that the limitation of expanding the display area may be solved. In the present invention, the display area 210 of the display panel according to the present invention in order to display the entire front area except for the operation key formed on the front of the portable terminal 100 has a groove 220 for mounting the operation key ( As shown in a) to (e), the display panel 210 is formed on one side of the display area 210.

In FIG. 3, the groove 220 has a rectangular shape, but may have various shapes such as a circle, a triangle, a closed curve, as well as a silk rectangle.

In addition, when the groove 220 is smaller than 1% of the total area of the display area 210, the area on which the operation key is mounted may not be sufficient, and the groove 220 may not cover the entire area of the display area 210. If it is greater than 40%, the groove 220 does not need to be formed and price competitiveness is low. Therefore, the groove 220 preferably occupies 1 to 40% of the total area of the display area 210.

In addition, the manipulation key may be a navigation key for adjusting a direction and an execution key of a specific menu function.

In this case, the display area 210 is formed using a flexible printed circuit board (hereinafter, referred to as “FPCB”) made of metal or plastic as a TFT substrate.

As described above, as the display area 210 is formed using the FPCB, the display area 210 is more resistant to external impact than the display area of the conventional glass material, and the display area 210 may be formed from the front to the side.

Hereinafter, the scan electrode line and the data electrode line structure of the display area 210 having the groove 220 will be described in detail with reference to the drawings.

<First Embodiment>

5A to 5E are first embodiment electrode wiring diagrams illustrating an electrode structure of a display panel according to the present invention.

In the first exemplary embodiment of the present invention, a plurality of scan drivers 230 or dual data drivers 240 are provided to display the remaining display areas except for the grooves 220 formed in the display area 210.

That is, referring to FIG. 5A, in the electrode structure of the display panel according to the first embodiment of the present invention, when the groove 220 is formed in the lower portion of the display area 210, a plurality of scan drivers 230 are formed. The data driver 240 is positioned at the left side and the right side of the display area 210, and the data driver 240 is located at the top of the display area 210.

In this case, the scan electrode lines are connected to the scan drivers 230 positioned on the left and right sides of the display area 210, and the horizontal direction of the stripe pattern is formed on the display area 210 except for the grooves 220. Is formed.

In addition, the data electrode lines are formed in the remaining display area 210 except for the groove 220 so as to cross the scan electrode lines.

As described above, as the scan electrode line and the data electrode line are formed on the remaining display area except for the groove 220 formed in the lower portion of the display area 210, the rest except for the operation keys mounted on the groove 220. The entire front area may be used as the display area 210.

Next, referring to FIG. 5B, the electrode structure of the display panel according to the first exemplary embodiment includes a plurality of scan drivers 230 when the groove 220 is formed in the upper portion of the display area 210. ) Are positioned at the left and right sides of the display area 210, and the data driver 240 is located at the bottom of the display area 210.

In this case, the scan electrode lines are connected to the scan drivers 230 positioned on the left and right sides of the display area 210, and the horizontal direction of the stripe pattern is formed on the display area 210 except for the grooves 220. Is formed.

In addition, the data electrode lines are formed in the remaining display area 210 except for the groove 220 so as to cross the scan electrode lines.

As described above, as the scan electrode line and the data electrode line are formed on the remaining display area except for the groove 220 formed in the lower portion of the display area 210, the rest except for the operation keys mounted on the groove 220. The entire front area may be used as the display area 210.

Next, referring to FIG. 5C, the electrode structure of the display panel according to the first exemplary embodiment of the present invention may include the scan driver 230 when the groove 220 is formed in the left portion of the display area 210. The data driver 240 is positioned at the left side of the display area 210, and the plurality of data drivers 240 are located at the top and bottom of the display area 210.

In this case, the scan electrode lines are connected to the scan driver 230 located on the left side of the display area 210 and are formed in the horizontal direction of the stripe pattern on the remaining area of the display area 210 except for the groove 220. .

In addition, the data electrode lines are connected to the plurality of data drivers 240 positioned at the top and bottom of the display area 210, and have a stripe pattern on the remaining area of the display area 210 except for the groove 220. It is formed in the vertical direction.

As described above, as the scan electrode line and the data electrode line are formed on the remaining display area 210 except for the groove 220, the entire front area except for the operation key mounted on the groove 220 is displayed in the display area ( 210).

Next, referring to FIG. 5D, the electrode structure of the display panel according to the first exemplary embodiment of the present invention may include the scan driver 230 when the groove 220 is formed in the right portion of the display area 210. The data driver 240 is positioned at the right side of the display area 210 and is positioned at the top and bottom of the display area 210.

In this case, the scan electrode lines are connected to the scan driver 230 positioned on the right side of the display area 210 and are formed in the horizontal direction of the stripe pattern on the remaining area of the display area 210 except for the groove 220. .

In addition, the data electrode lines are connected to the plurality of data drivers 240 positioned at the top and bottom of the display area 210, and have a stripe pattern on the remaining area of the display area 210 except for the groove 220. It is formed in the vertical direction.

As described above, as the scan electrode line and the data electrode line are formed on the remaining display area 210 except for the groove 220, the entire front area except for the operation key mounted on the groove 220 is displayed in the display area ( 210).

Next, referring to FIG. 5E, the electrode structure of the display panel according to the first exemplary embodiment includes a plurality of scan drivers 230 when the groove 220 is formed in the center portion of the display area 210. ) Are positioned on the left and right sides of the display area 210, and the plurality of data drivers 240 are positioned on the top and bottom of the display area 210.

In this case, the scan electrode lines are connected to the scan drivers 230 positioned on the left and right sides of the display area 210, and the horizontal direction of the stripe pattern is formed on the display area 210 except for the grooves 220. Is formed.

In addition, the data electrode lines are connected to the plurality of data drivers 240 positioned at the top and bottom of the display area 210, and have a stripe pattern on the remaining area of the display area 210 except for the groove 220. It is formed in the vertical direction.

As described above, as the scan electrode line and the data electrode line are formed on the remaining display area 210 except for the groove 220, the entire front area except for the operation key mounted on the groove 220 is displayed in the display area ( 210).

Second Embodiment

6A to 6D are second embodiment electrode wiring diagrams illustrating an electrode structure of a display panel according to the present invention.

According to the second embodiment of the present invention, a single scan driver 230 or a single data driver 240 is provided to display the remaining display area except for the groove 220 formed in the display area 210.

That is, referring to FIG. 6A, in the electrode structure of the display panel according to the second embodiment of the present invention, when the groove 220 is formed in the lower portion of the display area 210, the scan driver 230 may display the display area ( The data driver 240 is positioned at the left side or the right side of the 210, and is positioned at the upper end of the display area 210.

The scan electrode lines are connected to the scan driver 230 positioned on the left or right side of the display area 210, and are formed in a horizontal direction from an upper portion of the display area 210 to an area before the groove 220 is formed. do.

In this case, the scan electrode lines are bent in the region corresponding to the groove 220 on the display area 210 to bypass the groove 220.

In this case, the width 221 of the area where the scan electrode lines bypass the groove 220 on the display area 210 is a region where no pixel is formed, and the width 221 is preferably 0.01 to 5 mm thick. Do.

The reason is that if the width 221 is smaller than 0.01 mm, the resistance is too large and the display area 210 may malfunction. If the width 221 is larger than 5 mm, the display area 210 may be on the display area 210. The area where the pixel is not formed may be too large, resulting in low luminous efficiency and low price competitiveness.

In addition, the data electrode lines are formed in the remaining display area 210 except for the groove 220 and the width 221 so as to cross the scan electrode lines.

Next, referring to FIG. 6B, the electrode structure of the display panel according to the second exemplary embodiment of the present invention may include the scan driver 230 when the groove 220 is formed in the upper portion of the display area 210. The data driver 240 is positioned at the left side or the right side of the display area 210, and the data driver 240 is located at the bottom of the display area 210.

The scan electrode lines are connected to the scan driver 230 positioned on the left or right side of the display area 210, and are formed by bypassing the groove 220 formed in the upper portion of the display area 210.

Subsequently, the scan electrode lines are formed in a horizontal direction from the region where the groove 220 is formed on the display region 210.

In addition, the data electrode lines are formed in the remaining display area 210 except for the groove 220 and the width 221 so as to cross the scan electrode lines.

Next, referring to FIG. 6C, in the electrode structure of the display panel according to the second exemplary embodiment of the present invention, when the groove 220 is formed in the left portion of the display area 210, the scan driver 230 is formed. The data driver 240 is positioned at the right side of the display area 210 and the data driver 240 is located at the top or bottom of the display area 210.

The scan electrode lines are connected to the scan driver 230 positioned on the right side of the display area 210, and are formed in the horizontal direction of the stripe pattern on the remaining area of the display area 210 except for the groove 220.

The data electrode lines are connected to the data driver 240 positioned at the top or the bottom of the display area 210 and are formed by bypassing the groove 220 formed at the left side of the display area 210.

Next, referring to FIG. 6D, the electrode structure of the display panel according to the second exemplary embodiment of the present invention may include the scan driver 230 when the groove 220 is formed in the right portion of the display area 210. The data driver 240 is positioned at the left side of the display area 210, and the data driver 240 is located at the top or bottom of the display area 210.

The scan electrode lines are connected to the scan driver 230 positioned on the right side of the display area 210, and are formed in the horizontal direction of the stripe pattern on the remaining area of the display area 210 except for the groove 220.

The data electrode lines are connected to the data driver 240 positioned at the top or the bottom of the display area 210 and are formed by bypassing the groove 220 formed at the right portion of the display area 210.

7 is a front view showing a portable terminal having a display panel according to the present invention.

As shown in FIGS. 7A to 7D, the present invention forms a groove 220 in which an operation key is mounted on one side of the display area 210, and displays the remaining display area except for the groove 220. As the scan electrode line and the data electrode line are formed on the 210, the entire front area except for the manipulation key mounted on the groove 220 may be used as the display area 210.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention. Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

1 is an external view showing a conventional portable terminal.

2 is a block diagram of an example of a portable terminal related to the present invention.

3 is a circuit diagram illustrating pixels of a display panel according to the present invention.

4 is a structural diagram showing a display area of a display panel according to the present invention.

5A to 5E are first embodiment electrode wiring diagrams illustrating an electrode structure of a display panel according to the present invention.

6A to 6D are second embodiment electrode wiring diagrams illustrating an electrode structure of a display panel according to the present invention.

7 is a front view showing a portable terminal having a display panel according to the present invention.

<Description of Major Symbols in Drawing>

210: display area 220: groove

230: scan driver 240: data driver

Claims (13)

A display region in which a groove is formed in one region and which implements an image; A plurality of first electrode lines formed in a horizontal direction in the remaining display area except for the grooves; And And a plurality of second electrode lines formed in the display area except for the groove so as to intersect the first electrode lines. According to claim 1, And the display area is made of a metal or a plastic material. The method of claim 2, The display area is a display panel, characterized in that made of a flexible printed circuit board (hereinafter, abbreviated as "FPCB"). According to claim 1, The first electrode line is a scan electrode line, And the second electrode line is a data electrode line. According to claim 1, The groove may have an area of 1 to 40% of the total area of the display area. According to claim 1, The home is a display panel, characterized in that formed on one side of the display area to mount at least one key for performing a specific function of the portable terminal. According to claim 1, And the groove is at least one of a circle, a rectangle, a triangle, and a closed curve shape. According to claim 1, And a first electrode line driver configured to supply a first signal to one or both sides of the first and second sides of the display area that face each other. The method of claim 8, The first electrode lines are formed in parallel from the first side to the second side, And the first electrode line driver supplies a first signal to the first electrode lines of the first and second sides. The method of claim 8, The first electrode lines are formed in parallel from the first side to the second side, and are formed by bypassing the groove in a region corresponding to the groove. And the first electrode line driver supplies a first signal to first electrode lines of any one of the first and second sides. According to claim 1, And a second electrode line driver configured to supply a second signal to one or both sides of the third and fourth sides of the display area that face each other. The method of claim 11, wherein The second electrode lines are formed in parallel from the third side to the fourth side, And the second electrode line driver supplies a second signal to the second electrode lines of the third and fourth sides. The method of claim 11, wherein The second electrode lines are formed in parallel from the third side to the fourth side, and are formed by bypassing the groove in a region corresponding to the groove. And the second electrode line driver supplies second corals to second electrode lines of any one of the third and fourth sides.

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