KR102649522B1 - Device including display device and electronic device for driving the same - Google Patents

Abstract

A device according to the present specification includes a display device and an electronic device that performs the function of a speaker separately formed outside the display device and drives the display device, and the display device includes an organic light emitting display panel and a first flexible printed circuit. It includes a substrate, a first printed circuit board, a flexible cable, a second printed circuit board, and a first communication unit, and the electronic device includes a third to sixth printed circuit board, a System on Chip (SoC), a power supply unit, It includes a gamma voltage generator, a timing controller (T-CON), and a second communication unit, wherein the first flexible printed circuit board connects the organic light emitting display panel and the first printed circuit board, and the flexible cable connects the first printed circuit board and the first printed circuit board. The second printed circuit board is connected, the first communication unit is mounted on the second printed circuit board, and the first flexible printed circuit board is bent, so that the first flexible printed circuit board and the first printed circuit board are placed on the lower part of the organic light emitting display panel. A substrate, a flexible cable, a second printed circuit board, and a first communication unit are disposed, the SoC is mounted on a third printed circuit board to drive the organic light emitting display panel, and the power supply unit is mounted on a fourth printed circuit board, where the organic Power is supplied to the light emitting display panel, the gamma voltage generator is mounted on the fifth printed circuit board and transmits the gamma voltage to the organic light emitting display panel, and the timing controller is mounted on the sixth printed circuit board to transmit the gamma voltage to the organic light emitting display panel. It supplies image processing signals and controls operation timing.

Description

A device including a display device and an electronic device for driving the display device {DEVICE INCLUDING DISPLAY DEVICE AND ELECTRONIC DEVICE FOR DRIVING THE SAME}

The present invention relates to a display device and an electronic device for driving the display device, and more specifically, to arranging various circuit units and power supplies for driving the display device in an electronic device for driving the display device rather than the display device, It relates to a display device having a reduced thickness and improved design and an electronic device for driving the display device.

Display devices used in computer monitors, TVs, mobile phones, etc. include organic light emitting displays (OLED), which emit light on their own, and liquid crystal displays (LCD), which require a separate light source. there is.

Such a display device generally includes a display panel that directly displays an image, various circuit units for driving the display panel by applying various signals to the display panel, and a power supply unit for supplying power to the display panel. Since the display device displays images through the front surface of the display panel, various circuit units and power supply units as described above are generally disposed on the back of the display panel.

However, when the circuit part or the power supply part is disposed on the back of the display panel, there is a problem in that the thickness of the display device becomes very thick. Recently, as technology has advanced, the thickness of the display panel has become very thin, but on the back of the display panel, there is a timing controller board (T-CON board), a SoC (System on Chip) board, and a PSB (Power Supply) to supply power. As the thickness of the display device is disposed, there is a limit to reducing the overall thickness of the display device. In particular, in the case of an organic light emitting display device, which is a self-emissive display device, it does not require a separate light source and can be manufactured in a lightweight and thin form, so the thickness of the organic light emitting display panel itself is only about 4 mm. However, as the circuit unit or power supply unit as described above is disposed on the back of the organic light emitting display panel, the overall thickness of the organic light emitting display device may range from several cm to 10 cm or more.

Meanwhile, recently, not only the display function of various display devices but also the design aspect of the display device has been considered important. In particular, TVs, which are mainly placed in living rooms at home and in public places where many people are looking, are attracting attention not only from a functional aspect but also from an interior aspect. However, as described above, as the thickness of the display device increases, there is a demand for a display device that can provide aesthetics by reducing the thickness of the display device.

[Related technical literature]

1. Driving device and driving method of liquid crystal display device (Korean Patent Application No. 10-2002-0042973)

Accordingly, the problem to be solved by the present invention is to minimize the configuration disposed in the display device among various circuit units and power supplies for driving the display device, thereby providing a display device with a reduced thickness and an electronic device for driving the display device. It is provided.

In addition, another problem to be solved by the present invention is to provide an organic light emitting display panel and an organic light emitting display device that can provide improved aesthetics in terms of design by reducing the thickness.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to solve the problems described above, a device according to the present specification includes a display device and an electronic device that performs the function of a speaker separately formed outside the display device and drives the display device, and the display device includes an organic It includes a light emitting display panel, a first flexible printed circuit board, a first printed circuit board, a flexible cable, a second printed circuit board, and a first communication unit, and the electronic device includes third to sixth printed circuit boards, and SoC. (System on Chip), a power supply unit, a gamma voltage generator, a timing controller (T-CON), and a second communication unit, wherein the first flexible printed circuit board connects the organic light emitting display panel and the first printed circuit board, The flexible cable connects the first printed circuit board and the second printed circuit board, the first communication unit is mounted on the second printed circuit board, and the first flexible printed circuit board is bent, so that a first flexible cable is provided at the bottom of the organic light emitting display panel. A flexible printed circuit board, a first printed circuit board, a flexible cable, a second printed circuit board, and a first communication unit are disposed, the SoC is mounted on a third printed circuit board to drive the organic light emitting display panel, and the power supply unit is a third printed circuit board. 4 is mounted on the printed circuit board to supply power to the organic light emitting display panel, the gamma voltage generator is mounted on the fifth printed circuit board to transmit the gamma voltage to the organic light emitting display panel, and the timing controller is mounted on the sixth printed circuit board. It is mounted on the panel to supply image processing signals to the organic light emitting display panel and control its operation timing.

Specific details of other embodiments are included in the detailed description and drawings.

In the present invention, a display device includes only a display panel and a minimum configuration for applying a driving signal by being directly connected to the display panel, and the remaining circuit part or power supply is placed in a separate electronic device for driving the display device, This has the effect of minimizing the thickness of the device.

In addition, the present invention has the effect of reducing the thickness of the display device, providing a display device that is superior in design and improving space utilization of the display device.

The effects according to the present invention are not limited to the contents exemplified above, and further various effects are included in the present specification.

1 is a schematic conceptual diagram illustrating a display device and an electronic device for driving the display device according to an embodiment of the present invention.
Figure 2 is a schematic plan view for explaining a display device according to an embodiment of the present invention.
FIG. 3 is a schematic rear view illustrating a display device according to an embodiment of the present invention.
FIG. 4 is a schematic plan view illustrating an electronic device for driving a display device according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating an example of a display device and an electronic device for driving the display device according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Like reference numerals refer to like elements throughout the specification. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

When an element or layer is referred to as “on” another element or layer, it includes instances where the other layer or other element is directly on top of or interposed between the other elements.

Although first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present invention.

Like reference numerals refer to like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the components shown.

Each feature of the various embodiments of the present invention can be partially or fully combined or combined with each other, and as can be fully understood by those skilled in the art, various technical interconnections and operations are possible, and each embodiment may be implemented independently of each other. It may be possible to conduct them together due to a related relationship.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings.

1 is a schematic conceptual diagram illustrating a display device and an electronic device for driving the display device according to an embodiment of the present invention. Referring to FIG. 1, the display device 100 includes a display panel 110, a data driving circuit 120, a gate driving circuit 130, and a communication unit 140, and electronic devices for driving the display device 100. The device 200 includes an SoC 210, a gamma voltage generator 240, a timing controller 230, a power supply 220, and a communication unit 250. The display device 100 and the electronic device 200 communicate with each other through the respective communication units 140 and 250.

First, the display device 100 is a device that displays images to the user. For example, the display device 100 may be any one of various display devices such as an organic light emitting display device, a liquid crystal display device, etc. In addition, the electronic device 200 for driving the display device 100 is any electronic device other than the display device 100 that displays an image, and includes various driving circuits or power supply units of the display device 100. It is a device.

Referring to FIG. 1 , the display device 100 includes a display panel 110, a data driving circuit 120, a gate driving circuit 130, and a communication unit 140.

The display panel 110 refers to a panel on which display elements for displaying images are arranged in the display device 100. For example, when the display device 100 is an organic light emitting display device, the display panel 110 may be configured to include an organic light emitting element in which an anode, an organic light emitting layer, and a cathode are stacked. Additionally, when the display panel 110 is a liquid crystal display panel, the display panel 110 may be composed of a TFT array substrate, a color filter substrate, and a liquid crystal layer.

In the display panel 110, a plurality of data lines DL and a plurality of gate lines GL are arranged to intersect. The display panel 110 includes a plurality of pixels (PX) formed in a matrix form defined by a plurality of data lines (DL) and a plurality of gate lines (GL). When the display panel 110 is an organic light emitting display panel, an organic light emitting element is disposed in each pixel PX. In addition, when the display panel 110 is an organic light emitting display panel, additional wiring such as a Vdd voltage supply line and a Vref voltage supply line may be patched in the display panel 110 in addition to the gate line GL and the data line DL. It may be possible. When the display panel 110 is a liquid crystal display panel, a pixel electrode and a common electrode are disposed in each pixel (PX), and an image is displayed by changing the arrangement of the liquid crystals by the electric field generated by the pixel electrode and the common electrode. You can. In the display panel 110, a circuit including elements such as thin film transistors and capacitors may be disposed in each pixel PX.

The data driving circuit 120 supplies a data signal to the data line DL based on the control signal and data signal from the electronic device 200. Specifically, the data driving circuit 120 converts an image data signal into an analog image signal according to a data control signal supplied from the timing controller 230 of the electronic device 200, and supplies a gate signal to the gate line GL. For each horizontal cycle, an analog video signal for one horizontal line is supplied to the data line (DL). Additionally, the data driving circuit 120 may receive a gamma voltage from the gamma voltage generator 240 of the electronic device 200. Various signals from the electronic device 200 as described above are transmitted from the communication unit 250 of the electronic device 200 and received by the communication unit 140 of the display device 100, and the data driving circuit 120 is connected to the communication unit ( The signal is transmitted through 140).

The gate driving circuit 130 supplies a gate signal to the gate line GL based on a control signal from the electronic device 200. Specifically, the gate driving circuit 130 may include a shift resist that sequentially generates a gate signal in response to a gate start pulse and a gate shift clock among the gate control signals supplied from the timing controller 230 of the electronic device 200. there is. The gate driving circuit 130 receives this gate signal from the communication unit 140 of the display device 100, supplies it to the display panel 110 through the gate line GL, and turns the thin film transistor disposed in each pixel. -It turns on (turn-on).

The communication unit 140 of the display device 100 communicates with the communication unit 250 of the electronic device 200 and receives various control signals and data signals from the electronic device 200. Additionally, the communication unit 140 of the display device 100 also receives power through the communication unit 250 of the electronic device 200. The communication unit 140 of the display device 100 may communicate with the communication unit 250 of the electronic device 200 in a wired manner through a wired cable, or may communicate in a wireless manner. The specific functions of the communication unit 140 of the display device 100 will be described later along with the communication unit 250 of the electronic device 200.

Referring to FIG. 1 , the electronic device 200 includes an SoC 210, a power supply unit 220, a timing controller 230, a gamma voltage generator 240, and a communication unit 250.

The SoC 210 transmits control signals such as image data input from a driving system such as a personal computer that supplies image data, a dot clock, a horizontal synchronization signal, a vertical synchronization signal, and a data enable signal to the timing controller 230. .

The power supply unit 220 uses the voltage input from the system power unit of the system driver such as the SoC 210 to provide driving voltages, such as gate high voltage and gate low voltage, required to drive the display device 100. generated and transmitted to each driving circuit. Specifically, the power supply unit 220 may supply respective driving voltages to other components within the electronic device 200 and drive data of the display device 100 through the communication unit 250 of the electronic device 200. It may also be supplied to the circuit 120 and the gate driving circuit 130.

The timing controller 230 aligns the image data input from the SoC 210 to suit the driving of the display panel 110 and supplies it to the data driving circuit 120. In addition, the timing controller 230 generates a data control signal and a gate control signal using the dot clock, horizontal synchronization signal, vertical synchronization signal, and data enable signal input from the SoC 210 to drive the data driving circuit 120. and the gate driving circuit 130, respectively. The timing controller 230 transmits various signals as described above to the display device 100 through the communication unit 250 of the electronic device 200, and the communication unit 140 of the display device 100 receives the signals and , is transmitted to the data driving circuit 120 and the gate driving circuit 130.

The gamma voltage generator 240 may generate a gamma voltage according to image data output from the timing controller 230. The generated gamma voltage is output from the gamma voltage generator 240 and transmitted to the data driving circuit 120 of the display device 100 through the communication unit 250 of the electronic device 200 and the communication unit 140 of the display device 100. is provided.

Hereinafter, FIGS. 2 to 4 will be referred to for a more detailed description of the circuit configuration of the display device 100 and the electronic device 200 for driving the display device 100.

Figure 2 is a schematic plan view for explaining a display device according to an embodiment of the present invention. Figure 3 is a schematic rear view for explaining a display device according to an embodiment of the present invention. FIG. 4 is a schematic plan view illustrating an electronic device for driving a display device according to an embodiment of the present invention. FIG. 2 is a plan view of the first flexible printed circuit board 151 of the display device 100 before it is bent to the rear side of the display panel 110, and FIG. 3 shows the first flexible printed circuit board 151 in the direction of the arrow shown in FIG. 2. This is a rear view of the circuit board 151 bent toward the rear side of the display panel 110. In FIG. 4 , the circuit configuration of the electronic device 200 is shown in blocks for convenience of explanation.

First, referring to FIG. 4, the electronic device 200 includes a plurality of printed circuit boards 261 to implement the SoC 210, the timing controller 230, the gamma voltage generator 240, and the power supply unit 220. 262, 263, 264, 265) and a plurality of flexible cables (271, 272, 273, 274, 275, 276, 277) for electrically connecting each printed circuit board (261, 262, 263, 264, 265) Includes. The flexible cables 271, 272, 273, 274, 275, 276, and 277 may be, for example, flexible flat cables (FFC).

The first printed circuit board 261 is a board on which the SoC 210 for driving the display panel 110 of the display device 100 is mounted, and the SoC 210 and various wiring connected to the SoC 210 are mounted. . The first printed circuit board 261 may include input/output terminals to which the flexible cables 271, 272, and 273 can be electrically connected. For example, the SoC 210 transmits control signals such as image data, dot clock, horizontal synchronization signal, vertical synchronization signal, and data enable signal to the timing controller circuit 231 through the second flexible cable 272. do.

The second printed circuit board 262 is a board on which the power supply circuit 221 of the power supply unit 220 for power supply is mounted, and the power supply circuit 221 and various wiring connected to the power supply circuit 221 are mounted. do. The second printed circuit board 262 may include input/output terminals to which the flexible cables 271, 273, and 277 can be electrically connected. The power supply circuit 221 can supply voltage to other components inside the electronic device 200 through flexible cables 271, 273, and 277, and can supply voltage to the display device through the communication unit 250 of the electronic device 200. Voltage may be supplied to the display panel 110 of 100.

The third printed circuit board 263 is a board on which the timing controller circuit 231 of the timing controller 230 is mounted, and the timing controller circuit 231 and various wiring connected to the timing controller circuit 231 are mounted. The third printed circuit board 263 may include input/output terminals to which the flexible cables 272, 273, 274, and 275 can be electrically connected. The timing controller circuit 231 may supply an image processing signal to the display panel 110 and control the operation timing of the display panel 110. For example, the timing controller circuit 231 receives control signals such as image data, a dot clock, a horizontal synchronization signal, a vertical synchronization signal, and a data enable signal from the SoC 210 through the second flexible cable 272. It is possible to do so, and voltage can also be applied from the power supply circuit 221 through the third flexible cable 273. Additionally, the timing controller circuit 231 may transmit the generated data control signal and gate control signal to the communication unit 250 through the fifth flexible cable 275.

The fourth printed circuit board 264 is a board on which the gamma voltage generation circuit 241 of the gamma voltage generation unit 240 is mounted, and the gamma voltage generation circuit 241 and various wirings connected to the gamma voltage generation circuit 241 are It is implemented. The fourth printed circuit board 264 may include input/output terminals to which the flexible cables 274 and 276 can be electrically connected. For example, the gamma voltage generation circuit 241 generates a gamma voltage based on image data and transmits the gamma voltage to the communication unit 250 through the sixth flexible cable 276, and the communication unit 250 generates the gamma voltage. Voltage can be transmitted to the communication unit 140 of the display device 100.

The fifth printed circuit board 265 is a board on which the communication unit 250 is mounted. The communication unit 250 transmits signals from the SoC 210, the power supply circuit 221, the gamma voltage generation circuit 241, and the timing controller circuit 231 to the communication unit 140 of the display device 100. The fifth printed circuit board 265 may include input/output terminals to which the flexible cables 275, 276, and 277 can be electrically connected. However, the communication unit 250 is not limited to this, and may not be mounted on a separate printed circuit board, but may itself be manufactured as a single module.

The communication unit 250 of the electronic device 200 may perform wired communication or wireless communication with the communication unit 140 of the display device 100. The communication unit 250 will be described in more detail later along with the communication unit 140 of the display device 100.

The electronic device 200 includes circuits related to the display device 100, such as the SoC 210, the power supply unit 220, the timing controller 230, and the gamma voltage generator 240. It may further include a printed circuit board on which separate circuits for driving are arranged. The electronic device 200 is an electronic device for driving the display device 100 and is any electronic device other than the display device 100 that displays an image. For example, the electronic device 200 may be an electronic device configured separately from the display device 100, such as a speaker, electronic clock, or air conditioner. Accordingly, the electronic device 200 may include a separate driving circuit, a power circuit, etc. for driving the electronic device 200 itself, and these circuits may be disposed on a printed circuit board.

1 and 4, the electronic device 200 includes a SoC 210, a power supply unit 220 including a power supply circuit 221, a timing controller 230 including a timing controller circuit 231, and a gamma voltage generation. It is defined as including a gamma voltage generator 240 including a circuit 241 and a communication unit 250, but is not limited thereto and may further include various circuits required to drive the display device 100. .

Next, referring to FIGS. 2 and 3, the display device 100 includes a display panel 110, a first flexible printed circuit board 151, a second flexible printed circuit board 152, and a first printed circuit board ( 161), a second printed circuit board 162, and a communication unit 140.

The display panel 110 refers to a panel on which display elements for displaying images are arranged in the display device 100. For example, when the display device 100 is an organic light emitting display device, the display panel 110 may be configured to include an organic light emitting element in which an anode, an organic light emitting layer, and a cathode are stacked. Additionally, when the display panel 110 is a liquid crystal display panel, the display panel 110 may be composed of a TFT array substrate, a color filter substrate, and a liquid crystal layer.

A first flexible printed circuit board 151 is disposed on one side of the display panel 110. Specifically, one end of the first flexible printed circuit board 151 is disposed on the upper surface of the display panel 110. A data IC 121 constituting a data driving circuit 120 for supplying data signals to the display panel 110 is disposed on the first flexible printed circuit board 151 . The first flexible printed circuit board 151 may be formed of COF (Chip on Film), TCP (Tape Carrier Package), etc.

A second flexible printed circuit board 152 is disposed on one side of the display panel 110. Specifically, one end of the second flexible printed circuit board 152 is disposed on the upper surface of the display panel 110 on the left side of the display panel 110. A gate IC 131 constituting a gate driving circuit 130 for supplying a gate signal to the display panel 110 is disposed on the second flexible printed circuit board 152 . The second flexible printed circuit board 152 may also be formed of COF or TCP.

In FIG. 2, the gate driving circuit 130 is shown to be configured in such a way that the gate IC 131 formed independently of the display panel 110 is disposed on the second flexible printed circuit board 152, but the gate driving circuit 130 is not limited thereto. The driving circuit 130 may be configured as a GIP (Gate In Panel) mounted within the display panel 110.

The first printed circuit board 161 is connected to the other end of the first flexible printed circuit board 151. Specifically, one end of the first flexible printed circuit board 151 is connected to the display panel 110, and the other end of the first flexible printed circuit board 151 is connected to the first printed circuit board 161. Additionally, the first printed circuit board 161 is connected to the second printed circuit board 162 through a flexible cable 170. Accordingly, the first printed circuit board 161 may include an input/output terminal to which the flexible cable 170 can be electrically connected.

The first printed circuit board 161 includes a plurality of wires that receive various signals supplied from the communication unit 140 and transmit them to the first flexible printed circuit board 151. For example, the first printed circuit board 161 includes a plurality of wires that transmit various signals such as image data, data control signals, gate control signals, timing control signals, gamma voltage, and driving voltage. Image data, data control signal, and gamma voltage are transmitted to the data IC 121, and the gate control signal is transmitted to the gate IC 131. In order to transmit the gate control signal to the gate IC 131, a wiring mounted in a LOG (Line on Glass) method may be formed on the substrate of the display panel 110, and the gate control signal may be transmitted to the first flexible printed circuit board 151. ), may be sequentially transmitted to the gate IC 131 through the display panel 110 and the second flexible printed circuit board 152.

The second printed circuit board 162 is a board on which the communication unit 140 is mounted. The communication unit 140 receives various signals for driving the display panel 110 from the communication unit 250 of the electronic device 200 outside the display device 100 and transmits them to the first printed circuit board 161 that is electrically connected. do. For example, the communication unit 140 receives various signals such as image data, data control signals, gate control signals, timing control signals, and driving voltages from the communication unit 250 of the electronic device 200 outside the display device 100. and transmits it to the first printed circuit board 161. The second printed circuit board 162 may include an input/output terminal to which the flexible cable 170 can be electrically connected. However, the communication unit 140 is not limited to this, and may not be mounted on a separate printed circuit board, but may itself be manufactured as a single module.

The communication unit 140 of the display device 100 may perform wired communication with the communication unit 250 of the electronic device 200. The communication unit 140 of the display device 100 may be mounted on the second printed circuit board 162 of the display device 100, and the communication unit 250 of the electronic device 200 may be mounted on the fifth printed circuit board 162 of the electronic device 200. It can be mounted on a printed circuit board 265. Alternatively, both the communication unit 140 of the display device 100 and the communication unit 250 of the electronic device 200 may be manufactured in the form of separate modules. When the communication unit 140 of the display device 100 and the communication unit 250 of the electronic device 200 perform wired communication, the communication unit 140 of the display device 100 and the communication unit 250 of the electronic device 200 may be connected through a separate wired cable, and the communication unit 140 of the display device 100 and the communication unit 250 of the electronic device 200 may include a connector for connection to the wired cable. At this time, for smooth connection with the wired cable, the connector of the communication unit 140 of the display device 100 is arranged to be connected to the wired cable 510 in the case of the display device 100, and the connector of the communication unit 140 of the display device 100 is connected to the wired cable 510. The connector of the communication unit 250 may be placed in the case of the electronic device 200 to be connected to a wired cable. A wired cable can be a wired cable for various types of interfaces, for example, it can transmit signals using signals defined in the LVDS (Low Voltage Differential Signaling) interface, mini-LVDS interface, EPI (Embedded Panel Interface) interface protocol, etc. It could be a wired cable. However, the present invention is not limited thereto, and the wired cable may be a wired cable for another type of interface. Additionally, the communication unit 140 of the display device 100 and the communication unit 250 of the electronic device 200 may communicate wirelessly.

Referring to FIG. 3 , the first flexible printed circuit board 151 is bent so that the other end of the first flexible printed circuit board 151 and the printed circuit board are disposed under the lower surface of the display panel 110 . Accordingly, in the display device 100 according to an embodiment of the present invention, the lower part of the display panel 110 includes a first flexible printed circuit board 151, a first printed circuit board 161, a flexible cable 170, Only the second printed circuit board 162 and the communication unit 140 are disposed, and no other components are disposed below the display panel 110. Accordingly, within the case of the display device 100 to protect the display device 100, a display panel 110, a first flexible printed circuit board 151, a second flexible printed circuit board 152, and a first printed circuit are included. Only the board 161, the flexible cable 170, the second printed circuit board 162, and the communication unit 140 are disposed. In addition, except for the data driving circuit 120 and the gate driving circuit 130, the timing controller 230, SoC 210, and power supply unit 220 for driving the display device 100 are all used in the display device 100. It is disposed on the external electronic device 200, and the display device 100 can receive various signals and power required to drive the display panel 110 from the electronic device 200 through the communication unit 140. Therefore, the display device 100 according to an embodiment of the present invention includes only the display panel 110 and the minimum components for applying a driving signal by being directly connected to the display panel 110, and the remaining circuit parts or power supply The supply unit 220 is disposed in a separate electronic device 200 for driving the display device 100, so that the thickness of the display device 100 can be minimized.

More specifically, the thickness of the first flexible printed circuit board 151, the first printed circuit board 161, the flexible cable 170, and the second printed circuit board 162 disposed on the back of the display panel 110 is It is very thin, and the communication unit 140 may be configured as a circuit on the second printed circuit board 162 or as a separate chip mounted, so the overall thickness of the display device 100 is substantially that of the display panel 110. ) may be equal to the sum of the thickness of the case, the thickness of the case, and the thickness of the printed circuit board. That is, in a conventional display device, various components that were disposed on the back of the display panel 110 to increase the thickness of the display device 100 are disposed in the electronic device 200 outside the display device 100, and the display device 100 ) includes only components with very thin thickness, so the thickness of the display device 100 can be significantly reduced. Additionally, as the thickness of the display device 100 is reduced, a display device 100 that is superior in terms of design can be provided.

In order to maximize the effect of the display device 100 according to an embodiment of the present invention as described above, the display panel 110 of the display device 100 may be an organic light emitting display panel. Organic light emitting display panels are self-emitting display panels, and unlike liquid crystal display panels, they do not require a separate light source and can be manufactured in a lightweight and thin form. Even when the display device 100 according to an embodiment of the present invention is a liquid crystal display device, there is an effect of reducing the thickness of the display device 100 as the display device 100 is configured as described above, but the liquid crystal display device ( 100) must be equipped with a backlight unit, so there is a limit to thickness reduction. However, since the organic light emitting display panel can emit light on its own without a backlight unit, the display device 100 according to an embodiment of the present invention may be an organic light emitting display device 100 including an organic light emitting display panel.

FIG. 5 is a diagram illustrating an example of a display device and an electronic device for driving the display device according to an embodiment of the present invention. FIG. 5 shows an example in which the display device 100 and electronic devices 200A, 200B, 200C, and 200D according to an embodiment of the present invention can be applied to a general home.

The display device 100 according to an embodiment of the present invention may have a very thin thickness as described above. Accordingly, when the display device 100 is implemented as a TV as shown in FIG. 5, the display device 100 may be implemented as a wall-mounted TV with a thin thickness. In this case, unlike a conventional wall-mounted TV, the display device 100 has a very thin thickness, so it can be arranged to have a sense of unity with the wall and can be efficient in terms of space utilization.

Various home electronic devices may be used as electronic devices 200A, 200B, 200C, and 200D connected to the display device 100 according to an embodiment of the present invention. For example, the electronic device 200A may be a speaker that can be used in general homes. Since the speaker is often used in a fixed location without the user frequently moving the location, the display device 100 and the electronic device 200A may be connected to each other through a wired cable 510. Since speakers generally occupy a large volume in order to output high-quality sound, various circuit parts and power supplies of the display device 100 are placed on the speaker to display the display device 100, such as a TV, without significantly increasing the volume of the speaker. The thickness may decrease. Additionally, sound generated from the display device 100, which is a TV, may be output to the outside through a speaker.

Additionally, the electronic device 200C may be a sound bar that can be used in general homes. A sound bar is a sound output device that can perform the same function as a small speaker. A sound bar is a portable sound output device, and a user can carry the sound bar and use it while moving. Accordingly, when a sound bar is used as the electronic device 200C, the electronic device 200C and the display device 100 can communicate using the wireless communication method 520. Additionally, the sound bar may output sound generated from the display device 100 to the outside.

Additionally, the electronic device 200B may be an electronic watch that can be used in general homes. Since electronic watches are small in size, users often use them by moving them to various locations rather than fixing them in a specific location. Accordingly, when an electronic watch is used as the electronic device 200B, the electronic device 200B and the display device 100 can communicate using the wireless communication method 520.

Additionally, the electronic device 200D may be an air conditioner that can be used in general homes. Air conditioners are often used fixed in a specific location rather than being moved frequently by the user. Accordingly, the display device 100 and the electronic device 200D may be connected to each other through the wired cable 510. Since the air conditioner is bulky, the thickness of the display device 100, such as a TV, can be reduced without significantly increasing the volume of the air conditioner even if various circuit parts and power supply parts of the display device 100 are placed in the air conditioner.

For convenience of explanation, FIG. 5 only shows an example to which the display device 100 and the electronic device 200 according to an embodiment of the present invention can be applied. The display device 100 according to an embodiment of the present invention is shown in FIG. ) and the electronic device 200 is not limited to the example shown in FIG. 5.

Although embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: display device
110: display panel
120: data driving circuit
121: data IC
130: Gate driving circuit
131: Gate IC
140: Department of Communications
151: first flexible printed circuit board
152: second flexible printed circuit board
161: first printed circuit board
162: second printed circuit board
170: Flexible cable
200, 200A, 200B, 200C, 200D: Electronics
210: SoC
220: power supply unit
221: power supply circuit
230: Timing controller
231: Timing controller circuit
240: Gamma voltage generator
241: Gamma voltage generation circuit
250: Department of Communications
261: first printed circuit board
262: second printed circuit board
263: Third printed circuit board
264: fourth printed circuit board
265: Fifth printed circuit board
271: first flexible cable
272: second flexible cable
273: Third flexible cable
274: Fourth flexible cable
275: Fifth flexible cable
276: 6th flexible cable
277: 7th flexible cable
510: wired cable
520: Wireless communication method
DL: data line
GL: gate line
PXL: Pixel

Claims (6)

An electronic device that performs the functions of a display device and a speaker separately formed outside the display device and drives the display device,
The display device is,
An organic light emitting display panel, a first flexible printed circuit board, a first printed circuit board, a flexible cable, a second printed circuit board, and a first communication unit,
The electronic device is,
It includes a third printed circuit board to a sixth printed circuit board, a System on Chip (SoC), a power supply unit, a gamma voltage generator, a timing controller (T-CON), and a second communication unit,
The first flexible printed circuit board connects the organic light emitting display panel and the first printed circuit board, and constitutes a data driving circuit that supplies a data signal to the organic light emitting display panel on the first flexible printed circuit board. The data IC is mounted,
The first printed circuit board includes a plurality of wires that receive signals supplied from the first communication unit and transmit them to the first flexible printed circuit board,
The flexible cable is electrically connected to an input/output terminal of the first printed circuit board and an input/output terminal of the first printed circuit board to electrically connect the first printed circuit board and the second printed circuit board,
The first communication unit is mounted on the second printed circuit board and provides a signal provided from the second communication unit to the first printed circuit board electrically connected to the second printed circuit board and the flexible cable,
The first flexible printed circuit board is bent, so that at least a portion of the first flexible printed circuit board is disposed on an upper part of the organic light emitting display panel, and the remainder of the first flexible printed circuit board is disposed on a lower part of the organic light emitting display panel. A portion of the first printed circuit board, the flexible cable, the second printed circuit board, and the first communication unit are disposed,
The SoC is mounted on the third printed circuit board outside the display device and drives the organic light emitting display panel,
The power supply unit is mounted on the fourth printed circuit board outside the display device and supplies power to the organic light emitting display panel,
The gamma voltage generator is mounted on the fifth printed circuit board outside the display device and transmits the gamma voltage to the organic light emitting display panel,
The timing controller is mounted on the sixth printed circuit board outside the display device to supply an image processing signal to the organic light emitting display panel and control operation timing.
According to paragraph 1,
The electronic device is,
It may further include separate circuits for driving the electronic device separately from the SoC, the power supply, the timing controller, and the gamma voltage generator,
A device in which separate circuits for driving the electronic device are mounted on a seventh printed circuit board. According to paragraph 1,
Each of the first communication unit and the second communication unit includes a connector for connection to a wired cable. According to paragraph 1,
The display device further includes a second flexible printed circuit board on which a gate IC constituting a gate driving circuit that supplies a gate signal to the organic light emitting display panel is mounted. According to paragraph 4,
The first communication unit receives a gate control signal from the timing controller and transmits it to the gate IC, and receives a data control signal and image data from the timing controller and transmits it to the data IC. According to paragraph 4,
The first communication unit receives the gamma voltage from the gamma voltage generator and transmits it to the data IC.