KR20190073702A - Display device and mobile apparatus using the same - Google Patents

Abstract

The present invention relates to a display device and a mobile apparatus using the same which make the size of a screen bigger and facilitate a full touch screen by arranging a speaker and a microphone on the screen and placing an anti-vibration material between the speaker and the microphone. According to an embodiment of the present invention, the display device comprises: a speaker disposed on a first screen; a microphone disposed on a second screen; an anti-vibration material disposed between the speaker and the microphone; a first screen driver configured to write pixel data of an input image to pixels of the first screen; and a second screen driver configured to write the pixel data of the input image to pixels of the second screen.

Description

TECHNICAL FIELD [0001] The present invention relates to a display device and a mobile device using the display device.

The present invention relates to a display device in which a display panel is integrated with a diaphragm of a speaker and a microphone, and a mobile device using the same.

The electronic device may include a display device for reproducing the video signal and an audio output device for reproducing the audio signal. The electronic device may further include a microphone (hereinafter referred to as "microphone") that converts a sound wave into an electric signal.

Mobile devices include mobile phones, smart phones, tablet computers, notebook computers, and wearable devices. The mobile device may include a display device for outputting a video signal to reproduce a multimedia signal, a speaker for outputting an audio signal, and a microphone for converting a sound wave into an electrical signal.

A speaker is placed on the top of the display panel so that the mobile phone is placed close to the user's ear and mouth position in a mobile device such as a smart phone, and a microphone is disposed under the display panel. Such a speaker and microphone can not realize a full touch screen in which an image is displayed on the entire front side of the smartphone because the screen size is reduced. A mic hole is formed in a front case of a smart phone so that a microphone can be exposed to a sound wave according to a user's voice. Water penetration through the microphone hole makes it difficult to design a smartphone.

Accordingly, the present invention provides a display device which can enlarge a screen size and realize a full touch screen, and which is easy to be waterproofed, and a mobile device using the same.

A display device of the present invention includes: a speaker disposed on a first screen; a microphone disposed on a second screen; a vibration proof material disposed between the speaker and the microphone; And a second screen driver for writing the pixel data of the input image to the pixels of the second screen.

A mobile device of the present invention includes a first display panel providing a first screen, a second display panel providing a second screen, a cover glass disposed on a front surface of the display panels, a speaker disposed on a rear surface of the first display panel, A microphone disposed on the back surface of the second display panel, and a vibration proof material disposed between the first display panel and the second display panel.

According to another aspect of the present invention, there is provided a mobile device including a first display panel providing a first screen and a second screen, a cover glass disposed on a front surface of the display panel, a speaker disposed on a rear surface of the display panel, A microphone disposed on the display panel, and an anti-vibration material disposed on the back surface of the display panel between the speaker and the microphone.

In the present invention, a speaker and a microphone are disposed on the back surface of the display panel to enlarge the screen size and realize a full touch screen.

Further, since vibration of the display panel is transmitted directly to the microphone, the present invention is advantageous for waterproof design of the mobile device because there is no microphone hole.

According to the present invention, the display panel is used as a diaphragm of a speaker and a microphone, and a midframe and a main board are formed so as to avoid a speaker and a microphone arrangement space, As shown in FIG.

1 is a block diagram illustrating a mobile device according to an embodiment of the present invention.
2 is a diagram showing an example in which a speaker and a microphone are arranged on a screen of a display device.
3 is a block diagram showing a display device according to a first embodiment of the present invention.
4 is a cross-sectional view showing the anti-vibration material between the display panels shown in FIG.
5 is a block diagram showing a display device according to a second embodiment of the present invention.
6 is a cross-sectional view showing an anti-vibration material adhered to the display panel shown in Fig.
FIGS. 7 and 8 are views showing the structure of the speaker and microphone glued on the display panel in detail.
FIG. 9 and FIG. 10 are views showing the structure of a mobile device according to the first embodiment of the present invention.
11 and 12 are views showing a structure of a mobile device according to a second embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be noted that the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. The following embodiments are provided so that the disclosure of the present invention is complete and that those skilled in the art will fully understand the scope of the present invention. The invention is defined by the claims.

The shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing the embodiments of the present invention are illustrative, and thus the present invention is not limited thereto. Like reference numerals refer to like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Where the terms "comprises", "having", "done", and the like are used in this specification, other portions may be added unless "only" is used. Unless the context clearly dictates otherwise, including the plural unless the context clearly dictates otherwise.

In interpreting the constituent elements, it is construed to include the error range even if there is no separate description.

In the case of a description of the positional relationship, for example, if the positional relationship between two parts is described as 'on', 'on top', 'under', and 'next to' Or " direct " is not used, one or more other portions may be located between the two portions.

In the description of the embodiments, the first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are used only to distinguish one component from another.

It is to be understood that each of the features of the various embodiments of the present invention may be combined or combined with each other partially or wholly and technically various interlocking and driving are possible and that the embodiments may be practiced independently of each other, It is possible.

The display device of the present invention can be implemented based on a display device such as a liquid crystal display (LCD), a field emission display (FED), and an electroluminescence display. INDUSTRIAL APPLICABILITY An electroluminescent display device of the present invention can be distinguished as an inorganic light emitting display device and an organic light emitting display device depending on the material of the light emitting layer.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals throughout the specification denote substantially identical components. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 and 2, a mobile device 1000 of the present invention includes a host system 300, a display device, a speaker 10, and a microphone 20.

The display device includes a first and a second screen 100A and 100B, a first screen driver 210 for driving the first screen 100A and a second screen driver 220 for driving the second screen 100B. . The first screen driving unit 210 writes the pixel data of the input image received from the host system 300 into the pixels of the first screen 100A. The second screen driver 220 writes the pixel data of the input image received from the host system 300 to the pixels of the second screen 100B.

A speaker (10) and a microphone (20) are arranged on the screens (100A, 100B) of the display device. The speaker 10 may be disposed on the first screen 100A and the microphone 20 may be disposed on the second screen 100B and vice versa.

The first and second screens 100A and 100B of the display device can be implemented on the display panel shown in Figs.

The first screen 100A and the second screen 100B may constitute a full touch screen and operate as a single screen. The mobile device can operate in a low brightness mode that lowers power consumption and drives only a portion of the screen in a standby or sleep state. The low brightness mode drives some pixels of the screen defined in the always on mode (AoD) or partial mode (low brightness) to display predetermined information on the screen. Only one of the first and second screens 100A and 100B can be driven in the low brightness mode. When the second screen 100B is small, only the second screen 100B can be driven and the power of the first screen 100A can be shut off in the low brightness mode. The screen driving units 210 and 220 of the display device drive the first and second screens 100A and 100B in the normal driving mode to display an input image on the full touch screen, Only the second screen 100B can be driven to reduce power consumption.

The host system controls the entire function of the mobile device. The host system 300 may be implemented as an application processor (AP). The host system 300 is connected to peripheral devices to control input / output between peripheral devices.

The host system 300 is connected to the screen driving units 210 and 220 and the audio signal processing unit 30. The host system 300 receives the video signal Vsig and the audio signal Asig of the input image. The host system 300 supplies an audio signal to the audio signal processing unit 30 and converts the video signal Vsig into pixel data of an image signal matching the resolution of the screens 100A and 100B, .

The audio signal processing unit 30 controls the noise of the audio signal Asig received from the host system 300 and supplies it to the DAC 12. The DAC converts the audio signal Asig, Signal and outputs it to the speaker 10 to reproduce the audio signal. The microphone signal output from the microphone 20 is converted into digital data through an ADC (Analog to Digital Converter) 22 and supplied to the audio signal processing unit 30. The audio signal processing unit 30 removes noise from the signal received from the ADC 22 and transmits the noise to the host system.

The diaphragm of the speaker 10 and the diaphragm of the microphone 20 can be arranged close to each other. Further, the speaker 10 and the microphone 20 can share a diaphragm. The diaphragm of the speaker 10 and the diaphragm of the microphone 20 may be integrated with the display panel of the display device shown in Figs. If the diaphragms of the speaker 10 and the microphone 20 are disposed close to each other or the speaker 10 and the microphone 20 share one diaphragm, the signal of the speaker 10 and the signal of the microphone 20 may interfere with each other have.

The audio signal processing unit 30 includes a noise elimination filter. The noise removal filter can remove unwanted noise by comparing the audio signal to be output to the speaker 10 with the microphone signal received from the microphone 20. [ The noise elimination filter can eliminate the noise added to the microphone signal by the vibration of the speaker 10 by the signal intensity or the frequency filtering method. On the other hand, the noise elimination filter can remove the noise added to the audio signal to be outputted to the speaker 10 due to the vibration of the microphone 20.

The host system 300 is connected to a sensor unit, an input unit, a communication unit, an interface unit, a memory, and a power supply unit. The sensor unit includes a touch sensor, an image sensor, a heart rate sensor, a proximity sensor, an illumination sensor, an acceleration sensor, a magnetic sensor, a gravity sensor A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, And a biometric sensor (fingerprint sensor, iris recognition sensor). The image sensor may include a camera.

The input unit is a microphone (20). A touch sensor, a keypad, and the like. The communication unit may include at least one of a broadcast receiving module, a mobile communication module, a wireless Internet module, a short distance communication module, and a location information module. The output unit may include a display device, an audio output module, a haptrip module, and an optical output module.

The interface unit provides an interface between the host system 300 and an external device. The interface unit includes a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port , A video I / O port, and an earphone port.

The memory may store preset data and commands for controlling various operations of an application program (an application program, an application, a mobile device, or a wearable device). At least a part of the application programs are downloaded from an external server via wireless communication At the time of shipment of a mobile device or a wearable device, at least a program for executing a basic function of the application program is basically stored in the memory. The basic functions include, for example, a phone call reception function, a message reception function, Function, and the like, but is not limited thereto.

The power supply unit receives external power and internal power, and generates power necessary for driving the mobile equipment. The power supply unit includes a battery.

3 is a block diagram showing a display device according to the first embodiment of the present invention. 4 is a cross-sectional view showing an anti-vibration material between the display panels 110 and 120 shown in FIG.

3 and 4, the display apparatus of the present invention includes a first display panel 110, a first screen driver 210, a second display panel 120, a second screen driver 220, (200).

The first and second display panels 110 and 120 are physically separated. Each of the first and second display panels 110 and 120 includes a pixel array in which pixel data of an input image is displayed.

The first screen 100A is implemented on the pixel array of the first display panel 110. [ And the second screen 100B is implemented on the pixel array of the second display panel 120. [ The first screen 100A may be a large screen in which an input image is displayed in a normal driving mode and is not driven in a standby state or a sleep state. The second screen 100B is disposed below the first screen 100A and operates in a low brightness mode in a standby state or a sleep state to display predetermined information.

The pixel array of each of the first and second views 100A and 100B includes data lines and gate lines (or scan lines) that intersect the data lines, and are formed by data lines and gate lines And pixels 101 arranged in pixel regions that can be defined. The pixels 101 may be arranged in a matrix form.

The first and second display panels 120 and 120 are formed by using a self-luminous element such as an OLED (Organic Light Emitting Diode, OLED) to emit an electroluminescent light, which can display an image without a backlight unit The OLED display device may be divided into an inorganic light emitting display device and an organic light emitting display device according to the material of the light emitting layer. Diode, OLED ") is formed in each of the pixels. The organic light emitting display device has a high response speed and excellent luminous efficiency, luminance, viewing angle and the like, as well as excellent contrast ratios and color reproducibility since black gradations can be expressed entirely in black. The inorganic light emitting display device may include a quantum dot display device or a micro light emitting diode display device, but is not limited thereto.

The speaker 10 may be disposed on the back surface of the first display panel 110. [ The first display panel 110 is integrated with the diaphragm of the speaker 10. A microphone 20 may be disposed on the back surface of the second display panel 120. [ The second display panel 120 is integrated with the diaphragm of the microphone 20.

The microphone 20 should be disposed on the second display panel 120 close to the mouth of the user, which is advantageous in transmitting voice information. Since the first display panel 110 has a large screen, when the first display panel 100 is used as a diaphragm of the speaker 10, an audio signal can be outputted at a relatively large volume. Therefore, the speaker 10 is disposed on the first screen 100A close to the user's ear in the mobile device. The microphone 20 is disposed on the second screen 100B close to the user's mouth.

An anti-vibration material (141) is disposed between the first display panel (110) and the second display panel (120) to absorb or block vibration. The vibration-proof material 141 can be used as a vibration-proof material having a dust-proofing effect such as resin, natural / artificial rubber, foam pad, silicone pad, and adhesive tape. The dust-proof material 141 can block the sound interference between the first display panel 110 and the second display panel 120. [ The vibration-proof material 141 may be represented by an enclosure or a baffle, and is not limited to a term.

The first display panel 110 and the second display panel 120 may be bonded onto a cover glass 130 to form one plane as shown in FIG. The front surfaces of the display panels 110 and 120 are adhered to the cover glass 130 with the adhesive 140. The adhesive 140 may be any one of OCA (Optically Clear Adhesive) or OCR (Optically Clear Resin) having high transparency, but is not limited thereto. OCA and OCR have a dustproof effect that absorbs vibration. In the example of Fig. 4, the dust-proof resin 141 is filled between the side surfaces of the first display panel 110 and the second display panel 120 which face each other. The vibration of the speaker 10 is not propagated to the second display panel 120 and the vibration of the microphone 20 is not propagated to the first display panel 110 due to the vibration- The dustproof resin 141 may be OCA, but is not limited thereto.

Touch sensors are arranged in an in-cell type, an on-cell type, or an add-on type on a pixel array of the display panels 110 and 120 to realize a full touch screen .

The first screen driver 210 includes a data driver 112 for supplying a data voltage to the data lines of the first screen 100A and a gate driver 110 for applying gate pulses (or scan pulses) to the gate lines of the first screen 100A And a gate driver 114 that sequentially supplies the gate driver 114 and the like. The second screen driver 220 applies a gate pulse (or a scan pulse) to gate lines of the second screen 100B and a data driver 122 for supplying a data voltage to the data lines of the second screen 100B And a gate driver 124 which sequentially supplies the gate driver 124 and the like.

The timing controller 200 transmits the pixel data of the input image received from the host system 300 to the first and second data drivers 112 and 122. The timing controller 200 controls the operation timings of the first screen driver 210 and the second screen driver 220 using the timing signals received from the host system 300 in synchronization with the pixel data of the input image.

5 is a block diagram showing a display device according to a second embodiment of the present invention. 6 is a cross-sectional view showing an anti-vibration material adhered to the display panel 100 shown in Fig.

5 and 6, the display device of the present invention includes a display panel 100, a first screen driver 210, a second screen driver 220, and a timing controller 201.

The display panel 100 may be implemented as a display panel of an electroluminescent display device. The display panel 100 includes a pixel array in which pixel data of an input image is displayed. The first screen 100A and the second screen 100B are separated on the pixel array of the display panel 100. [ The pixel array includes data lines, pixels (101) arranged in pixel regions that may be defined by data lines and gate lines, including gate lines (or scan lines) intersecting the data lines ). The pixels 101 may be arranged in a matrix form.

The first screen 100A is a large screen in which an input image is displayed in the normal driving state and is not driven in the standby state or the sleep state. The second screen 100B is disposed below the first screen 100A and operates in a low brightness mode in a standby state or a sleep state to display predetermined information.

The speaker 10 and the microphone 20 are adhered to the back surface of the display panel 100 so that the display panel 100 also serves as a diaphragm of the speaker 10 and the microphone 20. The speaker 10 is disposed on the first screen 100A close to the user's ear in the mobile device. The microphone 20 is disposed on the second screen 100B close to the user's mouth.

The display panel 100 is integrated with the diaphragm of the speaker 10 and the microphone 20. Since the diaphragm of the speaker 10 and the microphone 20 are shared, interference occurs when the speaker 10 and the microphone 20 vibrate at the same time. 6, in order to separate a vibration wave or sound between the speaker 10 and the microphone 20, a vibration-absorbing material (not shown) is disposed on the back surface of the display panel 100 at a position between the speaker 10 and the microphone 20, (142) may be disposed.

Touch sensors may be arranged in an in-cell type, an on-cell type, or an add-on type in the pixel array of the display panel 100 to realize a full-touch screen.

The first screen driver 210 includes a data driver 113 for supplying a data voltage to the data lines of the first screen 100A, a gate driver 130 for applying a gate pulse (or a scan pulse) to the gate lines of the first screen 100A And a gate driver 115 that sequentially supplies the gate driver 115 and the like. The second screen driver 220 applies a gate pulse (or a scan pulse) to gate lines of the second screen 100B and a data driver 123 for supplying a data voltage to the data lines of the second screen 100B And a gate driver 125 which sequentially supplies the gate driver 125 and the like. When one of the two data drivers 113 and 123 is connected to the data lines between the first screen 100A and the second screen 100B, the data of the first screen driver 210 and the data of the second screen driver 210 The lines can be driven.

The timing controller 201 transmits the pixel data of the input image received from the host system 300 to the data drivers 113 and 123. The timing controller 201 controls the operation timing of the first screen driver 210 and the second screen driver 220 using the timing signal received from the host system 300 in synchronization with the pixel data of the input image.

The speaker 10 and the microphone 20 can be realized by a dynamic method using a voice coil or a piezoelectric method using a piezoelectric element. The dynamic method can reproduce a signal in a wide range of frequencies from high to low and can be driven without a separate power supply, which is advantageous for a mobile device and has the advantage that characteristics are not changed due to changes in the external environment. In addition, the dynamic method has a lower production cost and superior durability than the piezoelectric method. The piezoelectric type can be realized as a film type speaker and a film type micro type. 7 and 8 illustrate the structure of the speaker 10 and the microphone 20 implemented in a dynamic manner, but the present invention is not limited thereto.

7 and 8 are views showing the structure 10 of the microphone 10 and the speaker 10 glued on the display panels 100, 110, and 120 in detail. When both the speaker 10 and the microphone 20 are realized in a dynamic manner, the structures of the speaker 10 and the microphone 20 are substantially the same as in Fig.

Referring to Figs. 7 and 8, the speaker 10 and the microphone 20 have substantially the same structure. Each of the speaker 10 and the microphone 20 has a plate 74 or 75 to which a bobbin 72 wound with a voice coil 71 and a permanent magnet 76 are fastened.

The bobbin 72 is bonded to the rear surface of the display panel 100, 110, or 120 with an adhesive or a double-sided adhesive tape. The plates 74 and 75 are divided into a top plate 74 and a bottom plate 75 separated by a permanent magnet 76 therebetween. The bottom plate 75 includes a center pole 73 inserted into the bobbin 71.

In the speaker 10, when the current of the analog audio signal input to the DAC 12 and the amplifier flows in the voice coil 71, the permanent magnet 76 moves by a force generated according to the Fleming's left-hand rule. The plates 74 and 75, the bobbin 72, and the display panels 100, 110, and 120 are moved in conjunction with the permanent magnet 76. The display panels 100, 110, and 120 oscillate with the diaphragm of the speaker 10 to generate sound waves or sound.

In the case of the microphone 20, the display panels 100, 110, and 120 oscillate according to the sound waves, and the permanent magnet 76 vibrates in conjunction with the display panels 100, 110, and 120, A current flows through the coil 71 and is converted into an electric signal. The microphone signal generated by the current flowing through the voice coil 71 is converted into digital data through the amplifier and the ADC 22. [

9 and 10 are exploded perspective views showing the structure of a mobile device according to the first embodiment of the present invention. 9 is an exploded perspective view showing components of a mobile device. 10 is a cross-sectional view of a mobile device incorporating the components shown in Fig. In this embodiment, the display apparatus is constructed such that the display panels 110 and 120 are separated between the speaker 10 and the microphone 20 so that the diaphragm of the speaker 10 and the microphone 20 are separated as shown in FIGS. 3 and 4 Structure.

9 and 10, the mobile device of the present invention includes display panels 110 and 120, a cover glass 130, a mid frame 132, a main board 132, 134, a mid frame cover 136, a battery 138, and a back cover 131. [

The cover glass 130 may be embodied as tempered glass. The front surfaces of the display panels 110 and 120 are adhered to the cover glass 130 via the adhesive 140. [

The display panels 110 and 120 of the display device, the mid frame 132, the main board 134, the mid-frame cover 136, the battery 105, and the display panel of the display device in the space between the cover glass 130 and the back cover 131, And the like are stacked.

The speaker 10 is disposed on the back surface of the first display panel 110 so as to be located at the upper end of the mobile device. And a microphone 20 is disposed on the rear surface of the second display panel 120 so as to be located at the lower end of the mobile device. The front surfaces of the display panels 110 and 120 are adhered to the cover glass 130 via an adhesive 140. The vibration proof material 141 is disposed on the side opposite to the display panels 110 and 120.

The mid frame 132 and the mid-frame cover 136 support the display panels 110 and 120 and the main board 134. The mid frame 132 supports the display panels 110 and 120 and the mid frame cover 136 supports the main board 134. [ The display panels 110 and 120 and the main board 134 are spatially separated with the mid frame 132 interposed therebetween.

A drive IC for driving the display panels 110 and 120 is connected to the main board 134 via a flexible circuit board (FPCB). The drive IC drives the display panels 110 and 120 including the screen drivers 210 and 220, the timing controllers 200 and 201, and a power supply circuit (not shown). The main board 134 includes a host system 300. The camera 40, various sensors, and peripheral devices are connected to the main board 134.

When the components shown in FIG. 9 are assembled, the thickness t of the mobile device may be about 7-9 mm. The speaker 10 and the microphone 20 can be disposed on the display panels 110 and 120 without increasing the thickness of the mobile device. The midframe 132 and the main board 134 disposed between the display panels 110 and 120 and the midframe cover 136 should be designed not to interfere with the speaker 10 and the microphone 20 . For example, the midframe 132 includes a hole 132a serving as a speaker placement space and a hole 132b serving as a microphone placement space. For example, the hole 132a can receive a speaker, and the hole 132b can receive a microphone.

The main board 134 may be formed in an L-shaped structure so as to avoid a receiving space of the microphone. The main board 134 includes a hole 134a as a speaker accommodation space. The speaker 10 can be accommodated in the holes 132a and 134a formed in the mid frame 132 and the main board 134. [ The microphone 20 can be received in the hole 132b formed in the midframe 132. [ The mid frame 132 and the main board 134 may include holes 132c and 134c which are camera arrangement spaces.

11 and 12 are exploded perspective views showing a structure of a mobile device according to a second embodiment of the present invention. 11 is an exploded perspective view showing components of a mobile device. 12 is a cross-sectional view of a mobile device in which the components shown in FIG. 11 are assembled. In this embodiment, as shown in Figs. 5 and 6, the display device has a structure in which the diaphragm of the speaker 10 and the microphone 20 are embodied by one display panel 100. Fig.

11 and 12, the mobile device of the present invention includes a display panel 100, a cover glass 130, a mid frame 132, a main board 134, a mid-frame cover 136, a battery 138, , And a back cover (131).

The front surface of the display panel 100 is adhered to the cover glass 130 via an adhesive 140. The speaker 10 is disposed at the upper end of the display panel 100 and the microphone 20 is disposed at the lower end of the display panel 100. The vibration proof material 142 may be disposed between the speaker 10 and the microphone 20 on the back surface of the display panel 100. [

The speaker 10 and the microphone 20 can be disposed on the display panel 100 without increasing the thickness of the mobile device. The midframe 132 and the main board 134 disposed between the display panel 100 and the midframe cover 136 should be designed not to interfere with the speaker 10 and the microphone 20. [ In one example, the midframe 132 includes a hole 132a as a speaker arrangement space and a hole 132b as a microphone arrangement space.

The main board 134 is formed in an L shape to avoid the microphone 20. The main board 134 includes a hole 134a as a speaker arrangement space. The speaker 10 is disposed in a space defined by the meandram 132 and the holes 132a and 134a formed in the main board 134. [ The microphone 20 is disposed in a space defined by the hole 132b formed in the midframe 132. [ The mid frame 132 and the main board 134 include holes 132c and 134c defining a camera arrangement space.

A display device according to an exemplary embodiment of the present invention may be a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a curved device, an electronic organizer, an electronic book, a portable multimedia player (PMP), a personal digital assistant (PDA) , A mobile medical device, a desktop PC, a laptop PC, a netbook computer, a workstation, a navigation device, a car navigation system, a vehicle display device, a television, a wallpaper device, A signage device, a game device, a notebook, a monitor, a camera, a camcorder, a home appliance, and the like. Further, the display device of the present invention can be applied to an organic light-emitting illuminating device or an inorganic light-emitting illuminating device. When the sound generating device is applied to a lighting device, it can serve as a lighting and a speaker.

The display device according to the embodiment of the present invention can be described as follows.

A display device of the present invention includes: a speaker disposed on a first screen; a microphone disposed on a second screen; a vibration proof material disposed between the speaker and the microphone; And a second screen driver for writing the pixel data of the input image to the pixels of the second screen.

According to some embodiments of the present invention, a digital-to-analog converter connected to the speaker, an analog-to-digital converter connected to the microphone, and an audio signal received from the host system are transmitted to a digital-analog converter, and a microphone signal from the analog- And the audio signal processing unit may remove noise from the audio signal and the microphone signal using a noise reduction filter.

According to some embodiments of the present invention, the first display panel on which the pixel array of the first screen is disposed and the second display panel on which the pixel array of the second screen is disposed may be further included, And between the side surface of the panel and the side surface of the second display panel.

According to some embodiments of the present invention, the display panel may further include a display panel on which a pixel array of the first screen and a pixel array of the second screen are disposed, and the vibration proof material may be disposed on the display panel between the speaker and the microphone .

A mobile device of the present invention includes a first display panel providing a first screen, a second display panel providing a second screen, a cover glass disposed on a front surface of the display panels, a speaker disposed on a rear surface of the first display panel, A microphone disposed on the back surface of the second display panel, and a vibration proof material disposed between the first display panel and the second display panel.

According to some embodiments of the present invention, there is provided a display device comprising: a midframe disposed between a back surface of display panels and a back cover; a main board disposed between the midframe and the back cover; a midframe cover disposed between the main board and the back cover; And a battery disposed between the frame and the back cover, wherein the midframe may include a first hole for receiving the speaker and a second hole for receiving the microphone.

According to some embodiments of the invention, the mainboard may include a hole to avoid the space in which the microphone is received and to receive the speaker.

According to some embodiments of the present invention, the display apparatus may further include a screen driving unit capable of driving the first and second screens in the normal driving mode and driving only the second screen in the standby state or the sleep state.

According to another aspect of the present invention, there is provided a mobile device including a first display panel providing a first screen and a second screen, a cover glass disposed on a front surface of the display panel, a speaker disposed on a rear surface of the display panel, A microphone disposed on the display panel, and an anti-vibration material disposed on the back surface of the display panel between the speaker and the microphone.

According to some embodiments of the present invention, there is provided a display device comprising: a midframe disposed between a back surface of display panels and a back cover; a main board disposed between the midframe and the back cover; a midframe cover disposed between the main board and the back cover; And a battery disposed between the frame and the back cover, wherein the midframe may include a first hole for receiving the speaker and a second hole for receiving the microphone.

According to some embodiments of the present invention, the main board may include a hole to avoid the receiving space of the microphone and to receive the speaker.

According to some embodiments of the present invention, the display apparatus may further include a screen driving unit capable of driving the first and second screens in the normal driving mode and driving only the second screen in the standby state or the sleep state.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

10: Speaker 12: DAC
20: microphone 22: ADC
30: audio signal processor 100A: first screen
100B: Second screen 100, 110, 120: Display panel
112, 122, 113, and 123:
114, 115, 124, 125: Gate driver
200, 201: timing controller 130: cover glass
131: back cover 132: midframe
134: main board 136: mid-frame cover
138: Battery 140: Adhesive
141, 142: dustproof material 210: first screen driving section
220: second screen driver 300: host system
1000: Mobile devices

Claims (12)

A speaker disposed on the first screen;
A microphone disposed on the second screen;
A vibration proof material disposed between the speaker and the microphone;
A first screen driver for writing pixel data of an input image to pixels of the first screen; And
And a second screen driver for writing pixel data of the input image to pixels of the second screen. The method according to claim 1,
A digital-to-analog converter connected to the speaker;
An analog-to-digital converter connected to the microphone; And
And an audio signal processor for transmitting the audio signal received from the host system to the digital-to-analog converter and for transmitting the microphone signal from the analog-to-digital converter to the host system,
Wherein the audio signal processor removes noise from the audio signal and the microphone signal using a noise elimination filter. The method according to claim 1,
A first display panel on which the pixel array of the first screen is disposed; And
And a second display panel on which a pixel array of the second screen is disposed,
Wherein the vibration damping material is disposed between a side surface of the first display panel and a side surface of the second display panel. The method according to claim 1,
Further comprising a display panel on which a pixel array of the first screen and a pixel array of the second screen are arranged,
Wherein the vibration damping material is disposed on the display panel between the speaker and the microphone. A first display panel for providing a first screen;
A second display panel for providing a second screen;
A cover glass disposed on a front surface of the display panels;
A speaker disposed on a rear surface of the first display panel;
A microphone disposed on a rear surface of the second display panel; And
And a vibration damping material disposed between the first display panel and the second display panel. 6. The method of claim 5,
A midframe disposed between a back surface of the display panels and a back cover;
A main board disposed between the mid-frame and the back cover;
A mid-frame cover disposed between the main board and the back cover; And
Further comprising a battery disposed between the mid-frame and the back cover,
Wherein the midframe includes a first hole for receiving the speaker and a second hole for receiving the microphone. The method according to claim 6,
Wherein the main board includes a hole for avoiding a space in which the microphone is accommodated and accommodating the speaker. 6. The method of claim 5,
Further comprising a screen driver for driving the first and second screens in a normal drive mode and driving only the second screen in a standby state or a sleep state. A first display panel for providing a first screen and a second screen;
A cover glass disposed on a front surface of the display panel;
A speaker disposed on a back surface of the display panel;
A microphone disposed on a back surface of the display panel; And
And a dustproof material disposed on a back surface of the display panel between the speaker and the microphone. 10. The method of claim 9,
A midframe disposed between a back surface of the display panels and a back cover;
A main board disposed between the mid-frame and the back cover;
A mid-frame cover disposed between the main board and the back cover; And
Further comprising a battery disposed between the mid-frame and the back cover,
Wherein the midframe includes a first hole for receiving the speaker and a second hole for receiving the microphone. 11. The method of claim 10,
Wherein the main board includes a hole for avoiding a receiving space of the microphone and for accommodating the speaker. 10. The method of claim 9,
Further comprising a screen driver for driving the first and second screens in a normal drive mode and driving only the second screen in a standby state or a sleep state.

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