Display device

Abstract

A display device, according to an embodiment of the present invention, comprises: a main board; an OLED module that transmits a signal including a bad signal to the main board; a power board that supplies power supplied from an external power source to the display device; and an indicator, wherein, when the main board receives the bad signal, the power board may cut off the power supplied to the OLED module, and output, via the indicator, an OLED module fault notification to indicate that the OLED module is bad.

Description

display device

[0001] The present invention relates to a display device, and more particularly, to a display device that enables the cause of a defect to be easily identified.

[0002] Recently, various types of display devices have emerged. Among them, Organic Light Emitting Diode Displays (hereinafter referred to as "OLED displays") are widely used. Because OLED displays are self-luminous, they consume less power and can be manufactured thinner than liquid crystal displays (LCDs), which require a backlight. Furthermore, OLED displays offer the advantages of a wide viewing angle and a fast response time.

[0003] A typical organic light emitting diode display device configures red (R), green (G), and blue (B) sub-pixels as one unit pixel, and displays one image of various colors through the three sub-pixels.

[0004] When a still image is displayed for a long time, the accumulated light emission time between pixels changes, resulting in differences in the current light emission capability between pixels.

[0005] Because of this, when a still image is displayed for a long time and then changed to another image, the viewer sees an image with an afterimage of the previous image superimposed on the new image, causing inconvenience to the user when watching the video.

[0006] To prevent these problems, the display device initiates a screen protection operation by cutting off power to the OLED module when it detects a defect in the OLED module. As the screen protection operation is initiated, the display may stop displaying the screen.

[0007] However, the cause of a display blackout may be other than a screen protection mechanism, such as a malfunction in another component. Furthermore, because the display does not display the screen, it can be difficult to obtain information about the problem. Consequently, users may find it difficult to determine the cause of the blackout.

[0008] Accordingly, users must contact a service provider to receive OLED module replacement service and describe the defect in detail, which is inconvenient as the service provider must visit the service provider multiple times.

[0009] The present disclosure is intended to prevent damage to an OLED module by stopping display output, while allowing a user or service provider to intuitively know that a defect has occurred in the OLED module.

[0010] A display device according to an embodiment of the present invention includes a main board, an OLED module for transmitting a signal including a defective signal to the main board, a power board for supplying power from an external power source to the display device, and an indicator. When the main board receives a defective signal, the power board can cut off the power supplied to the OLED module and output an OLED module defective notification to indicate that there is a defective OLED module through the indicator.

[0011] An indicator of a display device according to an embodiment of the present invention is an LED lamp, and the main board can switch the display device to standby mode when receiving a bad signal.

[0012] A display device according to an embodiment of the present invention can output an OLED module failure notification by blinking an LED lamp in a blinking pattern corresponding to a failure of the OLED module.

[0013] A display device according to an embodiment of the present invention can output an OLED module failure notification from a point in time when a preset time has elapsed from the point in time when the display device is powered on.

[0014] The preset time may be longer than the time the LED lamp outputs a power-on notification.

[0015] The indicator of the display device according to an embodiment of the present invention is a speaker, and the main board can output a voice message corresponding to a defect in the OLED module as an OLED module defect notification.

[0016] A voice message output by a display device according to an embodiment of the present invention may include a message for guiding a user on how to request a service.

[0017] A display device according to an embodiment of the present invention can output an OLED module failure notification a preset number of times.

[0018] A display device according to an embodiment of the present invention can output an OLED module failure notification through a speaker when receiving a user input for turning on the display device while the display device is off.

[0019] A display device according to an embodiment of the present invention can obtain whether a bad signal is received from an OLED module when the external power source is disconnected and then reconnected, and output an OLED module failure notification if a bad signal is received.

[0020] According to an embodiment of the present disclosure, a defect in an OLED module can be identified while the display output is stopped and the power consumption of the display device is minimized.

[0021] According to an embodiment of the present disclosure, a defect in an OLED module can be clearly notified in a state where the display output is stopped.

[0022] According to an embodiment of the present disclosure, there is an advantage in that the service replacement process is simplified by intuitively notifying of a defect in the OLED module.

[0023] Figure 1 is a flowchart illustrating the process by which a user receives a parts replacement service from a service provider.

[0024] FIG. 2 is a drawing for explaining the configuration of a display device according to one embodiment of the present invention.

[0025] FIG. 3 is a ladder diagram illustrating the operation of a display device according to an embodiment of the present disclosure when a defect occurs in an OLED module.

[0026] FIG. 4 is an example of a faulty signal transmitted by the OLED module of the present disclosure to the main board.

[0027] FIG. 5 is a drawing for explaining an operation of a main board according to an embodiment of the present disclosure to cut off power supplied to an OLED module and a power board.

[0028] FIG. 6 is a drawing illustrating a display device according to an embodiment of the present disclosure outputting an OLED module failure notification through an LED lamp.

[0029] FIG. 7 is a drawing for explaining an example of an OLED module failure notification output by an LED lamp according to one embodiment of the present disclosure.

[0030] FIG. 8 is a drawing illustrating a display device according to an embodiment of the present disclosure outputting an OLED module failure notification through a speaker.

[0031] FIG. 9 is a flowchart illustrating a process in which a user receives a parts replacement service from a service provider according to an embodiment of the present disclosure.

[0032] Hereinafter, embodiments related to the present invention will be described in more detail with reference to the drawings. The suffixes "module" and "part" used in the following description for components are assigned or used interchangeably solely for the convenience of writing the specification, and do not in themselves have distinct meanings or roles.

[0033] Hereinafter, a display device according to an embodiment of the present disclosure may include an organic light emitting diode display device.

[0034] First, referring to Figure 1, the process of a user receiving a parts replacement service from a service provider is specifically described.

[0035] Figure 1 is a flowchart illustrating the process by which a user receives a parts replacement service from a service provider.

[0036] First, the user (300) can recognize a defect in the display device (S1).

[0037] A user (300) who recognizes a defect in the display device can request a diagnosis and repair service from a service provider (400) via the Internet, mobile phone, telephone, etc. (S2).

[0038] A service provider (400) may refer to a manufacturer of a display device or any company that provides diagnostic and repair services.

[0039] The service provider (400) can receive a service request and assign a service representative and diagnosis schedule (S3).

[0040] The service provider (400) can receive service requests through various methods such as the Internet, mobile, and telephone.

[0041] The service provider (400) can provide remote services (S4).

[0042] The service provider (400) can check the specific symptoms of the display device in detail or resolve simple defects through remote service.

[0043] Alternatively, the service provider (400) can call the user (300) to check the symptoms of the display device (S5) and hear an explanation of the symptoms from the user (300) (S6).

[0044] For example, a service provider (400) can call a service management call (SM Call) to a user (300) and hear an explanation of the symptom.

[0045] Thereafter, the service provider (400) can determine whether to visit the user's (300) home or other location where the display device is installed based on the description of the symptom (S7).

[0046] If the service provider (400) determines that the user (300) can resolve the defect in the display device by himself / herself without replacing parts, the service provider (400) can explain the problem-solving method to the user (300) (S8).

[0047] However, if the service provider (400) determines that a precise diagnosis of the display device is necessary, it may visit the location where the display device is installed.

[0048] The service provider (400) can visit the location where the display device is installed and hear the description of the symptom from the user (300) again (S9).

[0049] The service provider (400) can perform a diagnosis on the display device by referring to the description of the symptom.

[0050] The service provider (400) can determine whether parts need to be replaced through diagnosis (S10).

[0051] If the service provider (400) determines that replacement of parts is not necessary, it can provide the user (300) with an explanation of how to resolve the problem (S8).

[0052] Meanwhile, if the service provider (400) determines that a part needs to be replaced, it can order the part from an external vendor. Next, once the ordered part is secured, the service provider (400) can return to the location where the display device is installed with the part (S11). The service provider (400) can then replace the part and complete the service (S12).

[0053] According to the service process as shown in Fig. 2, the user (300) must repeatedly explain the defective symptom or inconvenience to the service provider (400), which is inconvenient. In addition, the service provider (400) must repeatedly visit the location where the display device is installed when parts need to be replaced, which is inconvenient.

[0054] Accordingly, the display device (100) according to the embodiment of the present disclosure simplifies the process of a user (300) receiving a parts replacement service, thereby minimizing the number of visits to a service provider (400).

[0055] In particular, the display device according to the embodiment of the present disclosure is intended to enable a user (300) or a service provider (400) to intuitively know that a defect has occurred in the OLED module when the component requiring replacement is an OLED module.

[0056] First, the configuration of a display device according to an embodiment of the present disclosure will be described with reference to FIG. 2.

[0057] FIG. 2 is a drawing for explaining the configuration of a display device according to one embodiment of the present invention.

[0058] Referring to FIG. 2, the display device (100) may include an OLED module (110), a main board (120), a power board (130), and an indicator (140).

[0059] The OLED module (110) may include a display panel (111), a four-color data conversion unit (112), a timing controller (113), a gate driver (114), a data driver (115), and a memory (116).

[0060] The display panel (111) may include a plurality of sub-pixels (SP). The plurality of sub-pixels may be formed in a pixel area defined by a plurality of gate lines (GL) and a plurality of data lines (DL) that intersect each other.

[0061] The display panel (111) has a plurality of driving power lines (PL) formed in parallel to each of a plurality of data lines (DL) and supplying a driving voltage.

[0062] Each of the plurality of sub-pixels may be any one of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

[0063] One unit pixel displaying one image may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel.

[0064] Each of the plurality of sub-pixels (SPs) may include an organic light-emitting diode (OLED) and a pixel circuit (PC).

[0065] An organic light-emitting diode (OLED) is connected between a pixel circuit (PC) and a driving power line (PL2) and emits light of a predetermined color by emitting light in proportion to the amount of data current supplied from the pixel circuit (PC).

[0066] To this end, the organic light emitting device (OLED) may include an anode electrode (or pixel electrode) connected to a pixel circuit (PC), a cathode electrode (or reflective electrode) connected to a driving power line (PL2), and a light emitting cell formed between the anode electrode and the cathode electrode and emitting light of any one color among red, green, blue, and white.

[0067] The light-emitting cell can be formed to have a structure of hole transport layer / organic light-emitting layer / electron transport layer or a structure of hole injection layer / hole transport layer / organic light-emitting layer / electron transport layer / electron injection layer.

[0068] A functional layer may be additionally formed in the light-emitting cell to improve at least one of the light-emitting efficiency or lifespan of the organic light-emitting layer.

[0069] The pixel circuit (PC) supplies a data current corresponding to a data voltage (Vdata) supplied to a data line (DL) from a data driver (115) to an organic light-emitting element (OLED) in response to a gate signal (GS) of a gate-on voltage level supplied to a gate line (GL) from a gate driver (114).

[0070] The data voltage (Vdata) has a voltage value that compensates for the degradation characteristics of the organic light emitting diode (OLED).

[0071] A pixel circuit (PC) is configured to include a switching transistor, a driving transistor, and at least one capacitor formed on a substrate by a thin film transistor formation process.

[0072] Switching transistors and driving transistors can be a-Si TFT, poly-Si TFT, oxide TFT, organic TFT, etc.

[0073] The switching transistor can supply a data voltage (Vdata) supplied to the data line (DL) to the gate electrode of the driving transistor according to a gate signal of a gate-on voltage level supplied to the gate line.

[0074] The driving transistor can control the amount of current flowing from the driving voltage line (PL1) to the organic light-emitting element (OLED) by being turned on according to the voltage between the gate and the source including the data voltage (Vdata) supplied from the switching transistor.

[0075] The four-color data conversion unit (112) can generate data to be provided to the unit pixel of the display panel (111) based on a timing synchronization signal (TSS) input from an external system body (not shown) or a graphics card (not shown) and three-color input data (Ri, Gi, Bi) of red, green, and blue.

[0076] The four-color data conversion unit (112) can generate four-color data (R, G, B, W) of red, green, blue, and white to be supplied to each of the red sub-pixel, green sub-pixel, blue sub-pixel, and white sub-pixel constituting the unit pixel, based on a timing synchronization signal (TSS) and three-color input data (Ri, Gi, Bi).

[0077] The generated four-color data (R, G, B, W) can be provided to the timing controller (113).

[0078] The four-color data conversion unit (112) may further include a filter (not shown). The filter can remove noise from the three-color input data.

[0079] For example, a filter can remove noise from three-color input data by performing filtering on the respective grayscale levels of red data, green data, and blue data. The filter can filter one or more of the red data, green data, and blue data.

[0080] The four-color data conversion unit (112) may be included in the timing controller (113).

[0081] The timing controller (113) can control the driving timing of each of the gate driving unit (114) and the data driving unit (115) based on a timing synchronization signal (TSS) input from an external system body (not shown) or a graphics card (not shown).

[0082] The timing controller (113) can generate a gate control signal (GCS) and a data control signal (DCS) based on a timing synchronization signal (TSS) such as a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a dot clock, etc.

[0083] The timing controller (113) can control the driving timing of the gate driver (114) through a gate control signal (GCS), and can control the driving timing of the data driver (115) through a data control signal (DCS) in synchronization therewith.

[0084] The timing controller (113) can accumulate data (R, G, B, W) of each sub-pixel (SP) supplied from the 4-color data conversion unit (112) for each sub-pixel (SP) unit at each frame or accumulation cycle set at a certain cycle and store the data in the memory (116).

[0085] The gate driving unit (114) can generate a gate signal (GS) corresponding to the display order of the image based on the gate control signal (GCS) provided from the timing controller (13), and supply the generated gate signal (GS) to the corresponding gate line (GL).

[0086] The gate driver (114) may be configured in the form of a plurality of integrated circuits (ICs), or may be formed directly on the substrate of the display channel (111) together with the transistor formation process of each sub-pixel (SP), and may be connected to one side or both sides of each of the plurality of gate lines (GL).

[0087] The data driving unit (115) can receive pixel data (DATA) and a data control signal (DCS) from the timing controller (113).

[0088] The data driving unit (115) can receive multiple reference gamma voltages from an external reference gamma voltage supply unit (not shown).

[0089] The data driving unit (115) can convert pixel data (DATA) into an analog data voltage (Vdata) based on a data control signal (DCS) and a plurality of reference gamma voltages.

[0090] The data driving unit (115) can supply the converted data voltage (Vdata) to the data line (DL) of the corresponding sub-pixel (SP). Accordingly, each unit pixel constituting the display panel (111) can display a predetermined image by causing the corresponding organic light-emitting element (OLED) to emit light by the data current based on the data voltage (Vdata) supplied to each sub-pixel (SP).

[0091] Each unit pixel can drive only three sub-pixels, including a white sub-pixel among the red, green, blue and white sub-pixels, or all four sub-pixels can be driven.

[0092] The data driving unit (115) is formed in the form of a plurality of integrated circuits (ICs) and can be connected to one side or / and both sides of the data line (DL).

[0093] The timing controller (113) can control the operation of the four-color data conversion unit (112), the gate driving unit (114), the data driving unit (115), and the memory (116).

[0094] Meanwhile, since the display device (100) illustrated in FIG. 1 is merely an embodiment of the present invention, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the display device (100) actually implemented.

[0095] For example, a 4-color data conversion unit (112) and a timing controller (113) may be configured as one control unit, or a 4-color data conversion unit (112), a timing controller (113), a gate driver (114), and a data driver (115) may be configured as one control unit (not shown).

[0096] The main board (120) can control the overall operation of the display device (100).

[0097] The main board (120) can control the operation of the display panel (111), the four-color data conversion unit (112), the timing controller (113), the gate driver (114), the data driver (115), and the memory (116).

[0098] In another example, the main board (120) is not provided separately, and a configuration including a 4-color data conversion unit (112), a timing controller (113), a gate driver (114), and a data driver (115) can perform the role of the main board.

[0099] The power board (130) can supply power to components or components of the display device (100) including the OLED module (110). The power board (130) can include a power supply circuit (not shown).

[0100] The indicator (140) can output a notification related to the status of the display device (100). The indicator (140) can include some or all of an LED lamp (141) and a speaker (142).

[0101] Meanwhile, depending on the use of the display device (100), specific pixels or subpixels may deteriorate, causing an afterimage to be displayed on the display panel (111).

[0102] This is because the light-emitting ability of a pixel is affected by the accumulated light-emitting amount of the pixel due to the material limitations of the pixel.

[0103] To prevent such problems, the display device (100) may initiate a screen protection operation when pixel deterioration is detected. For example, the screen protection operation may be a BDP (Burnt Detect Protection) operation.

[0104] The screen protection operation may be an operation that stops the power supply to the OLED module (110) to prevent further deterioration of the pixels. Accordingly, the pixels also stop emitting light, and no screen may be displayed on the display panel (111).

[0105] Since no screen is displayed on the display panel (111), the user (300) or the service provider (400) cannot obtain information related to the cause of the defect through the screen.

[0106] Accordingly, a display device (100) according to one embodiment of the present disclosure seeks to provide information related to the cause of a defect through an indicator (140).

[0107] Specifically, if the cause is a defect in the OLED module (110), this is intended to be notified through the indicator (140).

[0108] A display device (100) according to an embodiment of the present disclosure may include a main board (120), an OLED module (110) that transmits a signal including a defective signal to the main board (120), a power board (130) that supplies power supplied from an external power source (not shown) to the display device (100), and an indicator (140). In addition, when the main board (120) receives a defective signal, the power board (130) may cut off the power supplied to the OLED module (110) and output an OLED module defective notification to notify that there is a defective OLED module (110) through the indicator (140).

[0109] In relation to this, it is specifically explained with reference to Fig. 3.

[0110] FIG. 3 is a ladder diagram illustrating the operation of a display device according to an embodiment of the present disclosure when a defect occurs in an OLED module.

[0111] First, if a defect occurs in the OLED module (110) (S111), the OLED module (110) can transmit a defect signal to the main board (120) (S113).

[0112] The OLED module (110) can transmit a signal to the main board (120) depending on its status. If a defect occurs in the OLED module (110), the OLED module (110) can transmit a signal including a defect signal to the main board (120).

[0113] The defective signal may be a signal commonly included in the signal transmitted to the main board (120) when a defect occurs in the OLED module (110).

[0114] The bad signal may be a screen protection operation signal. The screen protection operation signal may be an operation to perform the BDP (Burnt Detect Protection) function.

[0115] The bad signal may be Low-High-Low as shown in Figure 4, but this is only an example.

[0116] Continuing, Fig. 3 is described.

[0117] When the main board (120) receives a bad signal (S115), it can transmit a power supply interruption signal to the power board (130) (S117).

[0118] The power supply cutoff signal may be a signal to cut off the power supplied by the power board (130) to the OLED module (110).

[0119] The power board (130) can switch the power mode of the display device (100) to standby mode (S119).

[0120] The power board (130) can switch the power mode of the display device (100) to standby mode by cutting off or minimizing the power supplied to the components or components of the display device (100), including itself. The standby mode may be a mode in which power consumption is minimized, such as when the power of the display device (100) is turned off.

[0121] As the power board (130) stops supplying power to the OLED module (110) (S121), the screen protection operation of the OLED module (110) can be initiated (S123).

[0122] Regarding steps S117 to S123, description is made with reference to FIG. 5.

[0123] FIG. 5 is a drawing for explaining an operation of a main board according to an embodiment of the present disclosure to cut off power supplied to an OLED module and a power board.

[0124] First, the main board (120) can cut off the power supplied to the OLED module (110) by transmitting a power supply cutoff signal to the power board (130).

[0125] Additionally, the main board (120) can switch the power mode of the display device (100) to standby mode by minimizing the power consumed by the power board (130).

[0126] However, if the indicator (140) that outputs an OLED module failure notification is not an LED lamp (141), the power board (130) may not switch the power mode of the display device (100) to standby mode. This is because the LED lamp (141) can output a notification using only standby power, whereas the speaker (142) must consume more power than the standby power to output a notification.

[0127] Again, Figure 3 is explained.

[0128] The main board (120) can output an OLED module failure notification through the indicator (140) (S125).

[0129] The OLED module failure notification may be a notification to indicate that a failure has occurred in the OLED module. The indicator (140) may be one or all of the LED lamp (141) and the speaker (142). The OLED module failure notification may be output through one or all of the LED lamp (141) and the speaker (142).

[0130] Referring to FIGS. 6 and 7, an OLED module failure notification output through an LED lamp (141) will be described.

[0131] FIG. 6 is a drawing illustrating a display device according to an embodiment of the present disclosure outputting an OLED module failure notification through an LED lamp.

[0132] The main board (120) can output an OLED module failure notification through the LED lamp (141) when power supply to the OLED module (110) is cut off.

[0133] Since the LED lamp (141) is a separate component from the OLED module (110), it can operate even when power supply to the OLED module (110) is cut off.

[0134] In addition, the LED lamp (141) can operate even when the display device (100) is switched to standby mode due to its low power consumption. Therefore, when an OLED module failure notification is output through the LED lamp (141), there is an advantage in that the OLED module failure notification can be output while the power consumption of the display device (100) is minimized.

[0135] Meanwhile, the OLED module failure notification may be the blinking of the LED lamp (141). Specifically, the LED lamp (141) may blink in a blinking pattern corresponding to the OLED module failure, thereby outputting the OLED module failure notification.

[0136] In relation to this, it is explained with reference to Fig. 7.

[0137] FIG. 7 is a drawing for explaining an example of an OLED module failure notification output by an LED lamp according to one embodiment of the present disclosure.

[0138] The main board (120) can detect a BDP by receiving a bad signal from the OLED module (110). The main board (120) detecting a BDP may mean that a bad signal has been received from the OLED module (110).

[0139] When the main board (120) receives a bad signal from the OLED module (110), it can output an OLED module bad notification through the LED lamp (141).

[0140] The LED lamp (141) can blink in a blinking pattern corresponding to an OLED module failure to output an OLED module failure notification.

[0141] As illustrated, the blinking pattern corresponding to an OLED module failure may be a pattern of blinking three times at one-second intervals, followed by turning off for three seconds. However, the blinking pattern corresponding to an OLED module failure may vary depending on the embodiment.

[0142] The blinking pattern corresponding to an OLED module failure may be a pattern preset by the manufacturer of the display device (100). Therefore, if the service provider (400) is the manufacturer or has received information related to the blinking pattern from the manufacturer, it is possible to determine whether the OLED module (110) is defective based solely on the blinking pattern output by the LED lamp (141).

[0143] The LED lamp (141) can output an OLED module failure notification until the connection to an external power source (e.g., AC power) is terminated. The LED lamp (141) can operate only on standby power. That is, the LED lamp (141) can output an OLED module failure notification even when the display device (100) is in standby mode.

[0144] Meanwhile, the main board (120) can output an OLED module failure notification through the LED lamp (141) from a point in time when a preset time has elapsed from the point in time when a failure signal is received from the OLED module (110). The preset time may be 30 seconds, but this is merely an example.

[0145] The preset time may be a time set in consideration of the time at which other notifications are output through the LED lamp (141).

[0146] For example, when the LED lamp (141) receives a user input for turning on the power of the display device (100), it can output a power-on notification notifying that the power of the display device (100) has been turned on. The power-on notification can be output in a blinking pattern in which the LED lamp (141) blinks six times at two-second intervals. In this case, the LED lamp (141) can output the power-on notification for 10 seconds from the time when the power of the display device (100) is turned on.

[0147] However, there may be cases where the main board (120) receives a defective signal from the OLED module (110) at the same time as the display device (100) is powered on. In this case, if an OLED module defective notification is output from the time the display device (100) is powered on, the OLED module defective notification and the power-on notification are output at the same time, making it difficult to know which notification is being output.

[0148] Accordingly, in order to prevent confusion between other notifications output through the LED lamp (141) and the OLED module failure notification, the display device (100) according to the embodiment of the present disclosure may output the OLED module failure notification after a preset time has elapsed from the time the main board (120) receives the failure signal. This may be a time set to be longer than the time for which the LED lamp (141) outputs the power-on notification.

[0149] Next, with reference to FIG. 8, an operation of a display device (100) according to an embodiment of the present disclosure to output an OLED module failure notification through a speaker (142) will be specifically described.

[0150] FIG. 8 is a drawing illustrating a display device according to an embodiment of the present disclosure outputting an OLED module failure notification through a speaker.

[0151] Referring to FIG. 8, the display device (100) according to an embodiment of the present disclosure can output an OLED module failure notification through a speaker (142) as well as an LED lamp (141).

[0152] The speaker (142) can output an OLED module failure notification based on voice data corresponding to a failure of the OLED module (110). The voice data may be data pre-stored in the display device (100) as data corresponding to a failure of the OLED module (110). Alternatively, the voice data may be data received from an external server (not shown) as data corresponding to a failure of the OLED module (110).

[0153] The OLED module defect notification output through the speaker (142) may be a voice message. The component defect notification output through the speaker (142) may include information regarding the defective component. Additionally, the component defect notification output through the speaker (142) may include a message providing guidance on how to request service.

[0154] For example, an OLED module failure notification output through the speaker (142) may be a voice message such as, "There is an abnormality in the screen area and it is not operating properly. Please contact a nearby service center." However, the specific message output through the speaker (142) may vary depending on the embodiment.

[0155] In order for the main board (120) to output an OLED module failure notification through the speaker (142), the power mode of the display device (100) may not be switched to standby mode. Accordingly, more power consumption is required than when outputting an OLED module failure notification through the LED lamp (141), but there is an advantage in that the notification content can be output more specifically through a voice message.

[0156] Meanwhile, the main board (120) may output an OLED module failure notification through the speaker (142) when receiving a user input for controlling the display device (100). For example, the main board (120) may output an OLED module failure notification through the speaker (142) when receiving a user input for turning on the display device (100) while the display device is off.

[0157] This is because the presence of user input means that the user wants to use the display device (100), and thus the reason why the screen is not displayed on the display panel (111) is not notified through the speaker (142). In addition, if there is no user input for a long period of time, the notification is not output through the speaker (142), thereby minimizing user inconvenience.

[0158] According to an embodiment, the main board (120) may output an OLED module failure notification via the speaker (142) a preset number of times. The preset number of times may be determined as the number of times to be repeatedly output, taking into account cases where the user (300) did not properly hear the voice message.

[0159] In addition, if the notification output through the speaker (142) continues, the degree of disruption to the user (300) may be greater than if the notification output through the LED lamp (141) continues. Therefore, the main board (120) can minimize the inconvenience to the user by outputting the OLED module failure notification through the speaker (142) a preset number of times and then stopping the notification output.

[0160] FIG. 9 is a flowchart illustrating a process in which a user receives a parts replacement service from a service provider according to an embodiment of the present disclosure.

[0161] The user (300) can recognize a defect in the display device (100) (S21).

[0162] The user (300) can recognize a defect in the display device (100) when symptoms such as the screen not being displayed on the display panel (111) occur.

[0163] A user (300) who recognizes a defect in the display device (100) can request service from a service provider (400) (S22).

[0164] The service provider (400) can receive and assign a service request (S23) and check whether a defective part notification is output through the indicator (140) (S24).

[0165] For example, the service provider (400) may ask the user (300) what the blinking pattern of the LED lamp (141) is.

[0166] If the indicator (140) does not output a notification or outputs a notification different from the notification of a defective part, the service provider (400) may provide an on-site service to determine which part is defective (S25).

[0167] Meanwhile, if the service provider (400) confirms that the indicator (140) is outputting a notification of a defective part, the service provider can visit the location where the display device (100) is installed with the part in hand.

[0168] For example, if the blinking pattern of the LED lamp (141) is the same as the blinking pattern corresponding to a defect in the OLED module, the service provider (400) may visit the location where the display device (100) is installed, bringing the OLED module (110).

[0169] Specifically, if the user (300) responds that the LED lamp (141) blinks three times at one-second intervals, the service provider (400) may determine that the indicator (140) is outputting an OLED module defect notification. Accordingly, the service provider (400) may determine that the OLED module (110) needs to be replaced and may visit the user's home with the OLED module (110).

[0170] Next, the service provider (400) can complete the service by replacing the OLED module (120) (S26).

[0171] Comparing FIG. 1 and FIG. 9, it can be seen that the process of FIG. 9 is simpler. Compared to FIG. 1, the process of FIG. 9 may require fewer explanations from the user (300) and less content for explanation. Furthermore, compared to FIG. 1, the process of FIG. 9 may require fewer visits by the service provider (400) to the location where the display device (100) is installed.

[0172] That is, depending on the operation of the display device according to the embodiment of the present disclosure, the service provider (400) can easily determine whether to provide an OLED module replacement service, thereby simplifying the service provision procedure.

[0173] Meanwhile, the display device (100) according to the embodiment of the present disclosure can be disconnected from an external power source for replacement of an OLED module (110) and then reconnected to the external power source after the OLED module (110) is replaced.

[0174] When the display device (100) is disconnected from an external power source and then reconnected, it can obtain whether a bad signal is received from the OLED module, and if a bad signal is received, it can output an OLED module failure notification.

[0175] Accordingly, the display device (100) according to the embodiment of the present disclosure has the advantage of easily determining whether the defect problem of the OLED module (110) has been resolved.

[0176] According to one embodiment of the present invention, the above-described method can be implemented as processor-readable code on a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

Claims

1. In the display device, motherboard; An OLED module transmitting a signal containing a bad signal to the main board; A power board that supplies power from an external power source to the display device; and Includes indicators, The above motherboard When the above-mentioned faulty signal is received, the power board cuts off the power supplied to the OLED module and outputs an OLED module fault notification to notify that there is a fault in the OLED module through the indicator. Display device.

2. In claim 1, The above indicator is an LED lamp, The above motherboard When the above bad signal is received, the display device switches to standby mode. Display device.

3. In claim 2, The above motherboard The LED lamp is blinked in a blinking pattern corresponding to a defect in the OLED module, thereby outputting a notification of a defect in the OLED module. Display device.

4. In claim 3, The above motherboard Outputting the OLED module failure notification from the time a preset time has elapsed from the time the display device is powered on. Display device.

5. In claim 4, The above preset time is The time that the above LED lamp outputs the power-on notification is longer than the time Display device.

6. In claim 1, The above indicator is a speaker, The above motherboard Outputting a voice message corresponding to a defect in the OLED module as a notification of a defect in the OLED module Display device.

7. In claim 6, The above voice message is Contains a message to guide the user on how to request a service. Display device.

8. In claim 6, The above motherboard Outputting the above OLED module failure notification a preset number of times Display device.

9. In claim 6, The above motherboard When the display device is turned off and a user input is received to turn the display device on, an OLED module failure notification is output through the speaker. Display device.

10. In claim 1, The above motherboard When the connection to the external power source is disconnected and then reconnected, it is obtained whether the bad signal is received from the OLED module, and if the bad signal is received, it outputs the OLED module bad notification. Display device.

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