KR20230029412A - Display device and operating method thereof - Google Patents

Abstract

A display device, which provides information regarding the quality or defects of the display device, and a method thereof are provided. The display device comprises: a communication unit; a display which includes a backlight; a backlight luminance sensor; and at least one processor, which emits light through the backlight, detects a luminance value of the light emitted from the backlight through the backlight luminance sensor, transmits sensor information, which includes the luminance value, to a server through the communication unit, when transmitting the sensor information, receives information related to symptoms appearing on the screen of the display device concerning the backlight and information about the causes of the symptoms, from the server, and displays the information about the symptoms and the causes.

Description

Display device and its control method {DISPLAY DEVICE AND OPERATING METHOD THEREOF}

The present disclosure relates to a display device and a control method thereof. Specifically, the present disclosure relates to a display device for providing information on a picture quality or defect of the display device.

Recently used display devices display images using a light source that emits light. For example, LCD (Liquid Crystal Display) or LED (Light Emitting Diode) devices display images on a display panel using a backlight, and OLED (Organic Light Emitting Diodes) devices use organic elements that emit colors themselves. to display the image.

In general, a display device has been used for a long period of time, such as 10 years or more, but the luminance of the light source in the display device decreases and the chromaticity of the light source changes to yellow as time passes.

Specifically, the light source may include a red light emitting material, a green light emitting material, and a blue light emitting material. Each light emitting material is deteriorated and luminance is lowered as time passes, and the speed at which luminance decreases is different depending on the light emitting material of each color component even under the same conditions. For example, the speed of luminance decrease of the blue light emitting material is the fastest, and the luminance of the red light emitting material and the green light emitting material decrease in that order. Accordingly, as time elapses, the luminance of the displayed image decreases as a whole, and the chromaticity changes to yellow due to the difference in the luminance decrease rate of the light emitting material.

In addition, when some of the plurality of backlights are missing, a portion of the screen appears dark because light is not emitted from the backlight in the missing portion.

In addition, when a part of the display panel is broken, the broken part does not transmit light and looks black. When a film cable connecting the display panel and the panel board is broken, horizontal or vertical lines appear on the screen.

However, in many cases, the user does not recognize the degraded image quality due to the aging of the backlight, or does not even know whether the image quality can be corrected even if the user recognizes it. In addition, since it is difficult and cumbersome to directly correct the image quality even if the image quality is corrected, most users continue to use the device while being dissatisfied with the deteriorated image quality.

In addition, when a defect occurs in the backlight or display panel, the user wants to immediately know what the cause of the defect is and how to fix it.

Therefore, it is necessary for the display device to provide information about the quality or defect of the display device to the user. In addition, it is necessary to automatically compensate for deterioration in image quality due to aging of the backlight.

Embodiments of the present disclosure are intended to provide information about picture quality or defects of a display device.

In addition, embodiments of the present disclosure are for automatically correcting image quality or defects of a display device.

A first aspect of an embodiment of the present disclosure is to emit light through a communication unit, a display including a backlight, a backlight luminance sensor, and a backlight, and detect a luminance value of light emitted from the backlight through the backlight luminance sensor, and through the communication unit. , Transmits sensor information including a luminance value to the server, and receives information about a symptom appearing on the screen of the display device in relation to the backlight and information about a cause of the symptom from the server as the sensor information is transmitted, It is possible to provide a display device including at least one processor that displays information about symptoms and information about causes of symptoms.

In addition, a second aspect of an embodiment of the present disclosure includes detecting a luminance value of light emitted from a backlight using a luminance sensor, transmitting sensor information including the luminance value to a server, and transmitting the sensor information. Accordingly, the step of receiving, from the server, information on a symptom and information on a cause of the symptom appearing on the screen of the display device in relation to the backlight, and displaying the information on the symptom and the information on the cause of the symptom, A method of providing information on a display device may be provided.

FIG. 1 discloses a method for providing, by a display device, information on picture quality or defect of the display device according to an embodiment of the present disclosure.
2 illustrates a device diagram of a display device according to an embodiment of the present disclosure.
3 illustrates a display panel, a backlight, and a backlight luminance sensor in a display device, according to an embodiment of the present disclosure.
4 illustrates a method for providing information about a symptom appearing on a screen by a display device according to an embodiment of the present disclosure.
5 is a flowchart of a method for providing information on a symptom displayed on a screen by a display device in conjunction with a server, according to an embodiment of the present disclosure.
6 illustrates a method in which a server determines a symptom and a cause of the symptom using an artificial intelligence model, according to an embodiment of the present disclosure.
7A illustrates a method of performing calibration by a display device, according to an embodiment of the present disclosure.
7B illustrates a method of performing calibration by a display device according to another embodiment of the present disclosure.
8 illustrates a method in which a display device provides a plurality of options for screen calibration, according to an embodiment of the present disclosure.
9 illustrates a method of displaying, by a display device, information about a symptom caused by a backlight falling off and information about a cause of the symptom, according to an embodiment of the present disclosure.
FIG. 10 illustrates a method for providing information about a symptom appearing on a screen due to a defect of a display panel and information about a cause of the symptom by a display device according to an embodiment of the present disclosure.
11 illustrates a method of adjusting a gain value of a display panel according to an ambient color of the display device according to an embodiment of the present disclosure.
12 illustrates a device diagram of a display device according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily implement the present disclosure with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

The terminology used in the present disclosure has been described as a general term currently used in consideration of the functions mentioned in the present disclosure, but it may mean various other terms depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. can Therefore, the terms used in the present disclosure should not be interpreted only as the names of the terms, but should be interpreted based on the meanings of the terms and the contents throughout the present disclosure.

Also, terms such as first and second may be used to describe various elements, but elements should not be limited by these terms. These terms are used to distinguish one component from another.

Also, terms used in the present disclosure are only used to describe specific embodiments and are not intended to limit the present disclosure. Expressions in the singular number include the plural meaning unless the context clearly indicates the singular number. In addition, throughout the specification, when a part is said to be “connected” to another part, this is not only the case where it is “directly connected”, but also the case where it is “electrically connected” with another element in between. include In addition, when a certain component is said to "include", this means that it may further include other components without excluding other components unless otherwise stated.

As used in this specification, particularly in the claims, “above” and similar designations may refer to both the singular and plural. Further, unless there is a description that explicitly specifies the order of steps in describing a method according to the present disclosure, the recited steps may be performed in any suitable order. The present disclosure is not limited by the order of description of the described steps.

The appearances of phrases such as “in some embodiments” or “in one embodiment” in various places in this specification are not necessarily all referring to the same embodiment.

Some embodiments of the present disclosure may be represented as functional block structures and various processing steps. Some or all of these functional blocks may be implemented as a varying number of hardware and/or software components that perform specific functions. For example, functional blocks of the present disclosure may be implemented by one or more microprocessors or circuit configurations for a predetermined function. Also, for example, the functional blocks of this disclosure may be implemented in various programming or scripting languages. Functional blocks may be implemented as an algorithm running on one or more processors. In addition, the present disclosure may employ prior art for electronic environment setting, signal processing, and/or data processing. Terms such as “mechanism”, “element”, “means” and “composition” may be used broadly and are not limited to mechanical and physical components.

In addition, connecting lines or connecting members between components shown in the drawings are only examples of functional connections and/or physical or circuit connections. In an actual device, connections between components may be represented by various functional connections, physical connections, or circuit connections that can be replaced or added.

FIG. 1 illustrates a method for providing, by a display device, information on picture quality or defect of the display device according to an embodiment of the present disclosure.

Referring to FIG. 1 , the display apparatus 1000 may provide information about symptoms occurring on the screen due to a defect in the backlight using a luminance value of the backlight.

According to an embodiment, the display device 1000 may include a backlight luminance sensor that detects a luminance value of light emitted from the backlight. The display apparatus 1000 may request information about symptoms expected to occur on the screen while transmitting the detected luminance value of the backlight to the server 2000 .

The server 2000 may determine a symptom expected to occur on the screen based on the received luminance value of the backlight. For example, the symptom may be a yellowing of the screen, a decrease in overall luminance of the screen, or a darkening of a part of the screen.

Also, according to embodiments, the display apparatus 1000 may further include a panel luminance sensor that detects not only the luminance value of the backlight but also the luminance value of light transmitted through the display panel. The display apparatus 1000 may request information about symptoms expected to occur on the screen while transmitting the detected luminance value of the panel to the server 2000 . The server 2000 may determine symptoms expected to occur on the screen based on the received luminance value of the panel. For example, the symptom may be a symptom of a black spot on a screen, a horizontal or vertical line symptom.

Upon receiving symptom information from the server 2000, the display apparatus 1000 may display information about the received symptom, thereby providing information about quality or defect to the user. For example, the display device 1000 asks "Does the screen look yellow overall?" Alternatively, information on a symptom expected to occur on the screen may be provided, such as “Does a part of the screen look dark?”.

Also, according to an embodiment, the display apparatus 1000 may receive information about the cause of the symptom as well as information about the symptom from the server 2000 . Information on the cause of the symptom may include, but is not limited to, aging of the backlight, loss of the backlight, breakage of the display panel, and breakage of a film cable connecting the display panel and the panel board.

The display apparatus 1000 may provide information about picture quality or poor quality to the user by displaying the information about the cause of the symptom upon receiving information about the cause of the symptom from the server 2000 . For example, the display apparatus 1000 may provide information on symptoms expected to occur on the screen, such as "screen yellowing due to secular change of the backlight" or "some of the backlights seem to be missing". can provide

Also, according to embodiments, the display apparatus 1000 may receive correction data capable of alleviating symptoms from the server 2000 . The correction data may be, for example, red gain, green gain, and blue gain (hereinafter referred to as RGB gain) of the display panel capable of correcting yellowing of chromaticity. Also, the correction data may be a luminance value of a backlight capable of correcting a decrease in overall luminance.

Upon receiving the correction data, the display apparatus 1000 may alleviate the symptom by changing a screen parameter set in the display apparatus 1000 based on the received correction data.

According to an embodiment, the display device 1000 may be implemented as a home appliance such as a refrigerator, washing machine, or vacuum cleaner. For example, the display device 1000 may be a display unit provided in a refrigerator.

2 illustrates a device diagram of a display device according to an embodiment of the present disclosure.

Referring to FIG. 2 , the display device 1000 may include a backlight 1420, a backlight luminance sensor 1430, a display 1400, a communication unit 1700, and a processor 1100.

The backlight 1420 is a light source and can emit light to a display panel (not shown). The backlight 1420 may be an LED light source or an OLED light source, but is not limited thereto.

In addition, the backlight 1420 may include a red light emitting material, a green light emitting material, and a blue light emitting material, and light emitted from each material may be added to emit white light. there is.

Over time, the light emitting materials may deteriorate, and the luminance of light emitted from the backlight may decrease due to the deterioration of the light emitting materials. In addition, since each light emitting material has a different deterioration rate, the chromaticity of light emitted from the backlight 1420 may change over time. For example, when the deterioration speed is fast in the order of blue, red, and green materials, yellow light may be strong in light emitted from the backlight 1420 .

The backlight luminance sensor 1430 may be a sensor that measures the amount of light. The backlight luminance sensor 1430 includes a white luminance sensor that measures the amount of white light, a blue luminance sensor that measures the amount of blue light, a red luminance sensor that measures the amount of red light, and a green luminance sensor that measures the amount of green light. may include at least one of them. For example, a white luminance sensor, a blue luminance sensor, a red luminance sensor, and a green luminance sensor may constitute one backlight luminance sensor 1430 as one set. Also, as another embodiment, each color luminance sensor may constitute one backlight luminance sensor 1430 .

The backlight luminance sensor 1430 may detect at least one of white luminance, blue luminance, red luminance, and green luminance of light emitted from the backlight.

The communication unit 1700 may communicate with an external device through at least one wired or wireless communication network.

The display 1400 includes a display panel (not shown) and may output image data through the display panel (not shown). For example, the display 1400 may include an LCD panel, an LED panel, or an OLED panel. The display 1400 may display various information required to control the display apparatus 1000 .

The processor 1100 may control the overall configuration of the display device 1000 including the backlight 1420, the backlight luminance sensor 1430, the display 1400, and the communication unit 1700.

The processor 1100 may control the backlight luminance sensor 1430 to detect the luminance of light emitted from the backlight 1420 . Also, the processor 1100 may transmit the detected luminance value of the backlight to the server 2000 through the communication unit 1700 .

In addition, the processor 110 may transmit the detected luminance value of the backlight to the server 2000 through the communication unit 1700 and request information about symptoms expected to occur on the screen and causes of the symptoms.

In addition, the processor 1100 can alleviate information about symptoms appearing on the screen of the display apparatus 1000 due to a backlight failure from the server 2000, information about the cause of the symptoms, and symptoms through the communication unit 1700. Correction data can be received.

Also, the processor 1100 may display information on the received symptom and information on the cause of the symptom through the display 1400 .

3 illustrates a display panel, a backlight, and a backlight luminance sensor in a display device, according to an embodiment of the present disclosure.

Referring to FIG. 3 , the display apparatus 1000 includes a display panel 1410, backlights 1420a, 1420b, 1420c, and 1420d, backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f), a top chassis ( 1910) and Bottom Chassis (1920).

In addition, the display panel 1410 may include a bottom polarizer 1414, a bottom glass substrate 1413, an RGB filter 1417, a top glass substrate 1412, and a top polarizer 1411.

Bottom Polarizer 1414 and Top Polarizer 1411 polarize light. In addition, the Bottom Glass Substrate 1413 and the Top Glass Substrate 1412 adjust the transmission amount of light for each of the sub-pixels (R, G, and B) in one pixel according to the RGB value and RGB gain of the image data. . As the transmittance of light through each sub-pixel is adjusted, the blue, green, and red light whose transmittance is adjusted pass through the RGB filter 1417, so that the color of each pixel can be expressed.

The backlights 1420a, 1420b, 1420c, and 1420d may be LED light sources, but are not limited thereto. The backlights 1420a, 1420b, 1420c, and 1420d are positioned behind the display panel 1410 to emit light to the rear surface of the display panel 1410. The light emitted from the backlights 1420a, 1420b, 1420c, and 1420d spreads evenly as it passes through the diffuser sheet 1415, and the light that spreads evenly passes through the prism sheet 1418 and is directed to the back side of the display panel 1410.

As shown in FIG. 3 , there may be a plurality of backlights 1420a, 1420b, 1420c, and 1420d. Also, since the backlights 1420a, 1420b, 1420c, and 1420d are provided on the reflector sheet 1416, most of the light emitted from the backlights 1420a, 1420b, 1420c, and 1420d may be directed toward the display panel 1410.

The backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may detect luminance of light emitted from the backlight. For example, the backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may detect at least one of white luminance, blue luminance, red luminance, and green luminance of light emitted from the backlight.

As shown in FIG. 3 , backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may be provided on side surfaces of backlights 1420a, 1420b, 1420c, and 1420d.

In addition, when the backlights 1420a, 1420b, 1420c, and 1420d are provided on the reflector sheet 1416, the backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may also be provided on the reflector sheet 1416. can

Depending on the embodiment, the backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may be provided at any position that does not interfere with light emitted from the backlights 1420a, 1420b, 1420c, and 1420d to the display panel. . For example, as shown in FIG. 3 , the backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may be provided at inner corners of the Bottom Chassis 1920, and the backlights 1420a, 1420b, 1420c, 1420d) and the bottom chassis 1920 may be provided. According to exemplary embodiments, the backlight luminance sensors 1430a, 1430b, 1430c, 1430d, 1430e, and 1430f may be provided between the backlights 1420a, 1420b, 1420c, and 1420d.

4 illustrates a method for providing information about a symptom appearing on a screen by a display device according to an embodiment of the present disclosure.

In step S410, the display apparatus 1000 may detect a luminance value of light emitted from the backlight 1420 using the backlight luminance sensor 1430.

In step S420, the display apparatus 1000 may transmit sensor information including a luminance value to the server 2000.

In step S430, as the display apparatus 1000 transmits sensor information, information about symptoms appearing on the screen of the display apparatus 1000 in relation to the backlight 1420 and information about the cause of the symptoms are received from the server 2000. can receive

Symptoms appearing on the screen of the display device 1000 due to a defect in the backlight 1420 may include at least one of yellowing of the screen, overall darkening of the screen, and partial darkening of the screen. Not limited.

Symptoms appearing on the screen of the display device 1000 due to a defect in the backlight 1420 may mean the quality of an image displayed on the display panel when the display panel is driven. For example, a yellowing symptom of a screen may mean that an image displayed on a display panel is yellowish. In addition, the symptom of overall darkening of the screen may mean a phenomenon in which luminance of an image displayed on a display panel is generally low. In addition, the symptom of partially darkening the screen may mean a phenomenon in which a part of an image displayed on a display panel is expressed darker than other parts.

In addition, the cause of the symptom may include at least one of aging of the backlight 1420 and loss of the backlight 1420 .

According to an embodiment, when the server 2000 inputs the luminance sensor value received from the display device 1000 as an input value of the artificial intelligence model using a pre-learned artificial intelligence model, the output information is converted into symptoms and symptoms. can be determined as a cause of

In addition, according to an embodiment, the server 2000 may include the luminance sensor value, the model name of the display device 1000, a shipping date, and a screen parameter (eg, a preset RGB gain and a preset level of a backlight driving signal). When at least one of , usage time, and mainly used applications is input as an input value of the artificial intelligence model, output information may be determined as a symptom and a cause of the symptom.

In step S440, the display apparatus 1000 may display information about the symptom and information about the cause of the symptom.

The display apparatus 1000 may display both symptom information and information about the cause of the symptom.

Also, according to an embodiment, the display apparatus 1000 displays a question asking whether the symptom is correct based on the received information about the symptom, and upon receiving a user input indicating that the symptom is correct, the information about the cause of the symptom can also be displayed.

Further, according to an embodiment, when the cause of the symptoms is the aging of the backlight 1420, the display apparatus 1000 further receives correction data for compensating for the aging of the backlight 1420 from the server 2000. can do. The display apparatus 1000 alleviates symptoms caused by aging of the backlight 1420 by adjusting at least one of the RGB gain of the display panel and the luminance value of light emitted from the backlight 1420 based on the received correction data. can make it

In this case, the display apparatus 1000 displays a question asking whether to alleviate the symptoms caused by the aging of the backlight 1420, and receives a user input for alleviating the symptoms caused by the aging of the backlight 1420. , symptoms caused by aging of the backlight 1420 may be alleviated based on the received correction data.

Also, according to embodiments, the correction data may include a plurality of correction data sets. For example, one correction data set may include RGB gains. The display apparatus 1000 expresses the chromaticity of the display apparatus 1000 that changes according to the plurality of correction data sets by outputting a plurality of identical images but different chromaticities based on each of the plurality of correction data sets. can

In this case, upon receiving a user input for selecting one of a plurality of images having different chromaticities, the display apparatus 1000 may determine a correction data set corresponding to the selected image as an RGB gain of the display panel.

According to an embodiment, the display device 1000 transmits sensor information including the luminance value of the backlight 1420 to the server 2000 when a user input for selecting a screen adjustment menu of the display device 1000 is received. and information on the symptoms received from the server 2000 and information on the cause of the symptoms may be displayed.

Also, according to another embodiment, the display apparatus 1000 transmits sensor information to the server 2000 when the luminance value of light emitted from the backlight 1420 falls below a threshold value, and the server 2000 transmits sensor information. It is also possible to display information about the received symptom and information about the cause of the symptom.

Also, according to an embodiment, the display apparatus 1000 may include not only the backlight luminance sensor 1430 but also a panel luminance sensor that detects a luminance value of light transmitted through the display panel. Also, the display apparatus 1000 may transmit the luminance value detected by the panel luminance sensor to the server 2000 . As the luminance value is transmitted to the server 2000, the display device 1000 provides, from the server 2000, information about symptoms appearing on the screen of the display device 1000 due to a defect in the display panel and information about the cause of the symptoms. Information may also be received.

5 is a flowchart of a method for providing information on a symptom displayed on a screen by a display device in conjunction with a server, according to an embodiment of the present disclosure.

In step S510, the display device 1000 may detect a luminance value of light emitted from the backlight 1420.

In step S520, the display device 1000 may transmit the detected luminance value of the backlight to the server 2000.

Depending on the embodiment, the display device 1000 may transmit at least one of a screen parameter, a model name of the display device 1000, a shipping date, a use time, and a main use application to the server 2000.

In step S530, the server 2000 may determine symptoms and causes of the symptoms appearing on the screen of the display device 1000 due to a defect in the backlight 1420 based on the received luminance value of the backlight light.

According to an embodiment, the server 2000 may determine whether yellowing of the screen due to aging of the backlight 1420 is expected based on the ratio of red light, green light, and blue light in the backlight. For example, when the ratio of the blue luminance value to the green luminance value is greater than or equal to the chromaticity threshold, the server 2000 may determine that the screen of the device device is yellowish due to the aging of the backlight 1420. .

In this case, the server 2000 further considers a preset RGB gain value as well as ratios of red light, green light, and blue light in the backlight 1420 to determine whether yellowing of the screen due to aging of the backlight 1420 is expected. may be For example, the server 2000 compares a value obtained by multiplying a red gain by a ratio of red light, a green gain by a ratio of green light, and a blue gain by a ratio of blue light, and screen yellowing symptom due to aging of the backlight 1420. You can also decide if this is expected.

Also, the server 2000 may determine whether the entire screen of the display device 1000 looks dark due to the aging of the backlight 1420 based on the white luminance value of the backlight. For example, when the average of the white luminance values detected by the plurality of luminance sensors is less than or equal to the luminance threshold and the standard deviation of the white luminance values is less than or equal to the deviation threshold, the display device 1000 is configured to display the backlight 1420 due to the secular change. It may be determined that the screen of the device appears dark overall.

Also, the server 2000 may determine whether or not the backlight 1420 is dropped based on the luminance value of the backlight light. For example, when the difference between the smallest luminance value and the largest luminance value among luminance values detected from a plurality of luminance sensors is equal to or greater than a difference threshold value, the server 200 is located near the luminance sensor that has detected the lowest luminance value. It may be determined that some of the backlights 1420 are missing, so that a portion of the screen appears dark.

According to another embodiment, when the server 2000 inputs the received luminance values as inputs of the artificial intelligence model using the artificial intelligence model, the output symptoms and causes of the symptoms are the symptoms and symptoms of the display device 1000. The cause of the symptoms can be determined.

Also, as it is determined that the cause of the symptoms is the aging of the backlight 1420, the server 2000 according to an embodiment may calculate correction data for compensating for the aging of the backlight 1420. The correction data may include at least one of an RGB gain and a level of a driving signal of the backlight 1420 .

For example, the server 2000 may calculate a relative ratio (white balance or chromaticity) of red light, green light, and blue light in the backlight based on the received luminance value. The server 2000 sets the RGB gain based on the calculated ratio of red light, green light, and blue light so that the same amount of red light, green light, and blue light is transmitted when the image data for the red pixel, the green pixel, and the blue pixel have the same value. can be calculated

Depending on the embodiment, the server 2000 may calculate the correction data by considering the RGB gain preset in the display device 1000 . For example, the server 2000 may store preset RGB gains when the display device 1000 is shipped in correspondence to identification information (eg, serial number) of the display device 1000 . The preset RGB gain may be a value reflecting inherent characteristics of the display panel in the display apparatus 1000 . The server 2000 may calculate an RGB gain based on the ratio of red light, green light, and blue light of the backlight 1420 and then multiply the calculated RGB gain by a preset RGB gain to calculate correction data.

In addition, the server 2000 may determine the level of the driving signal of the backlight 1420 such that the received white light luminance value of the backlight 1420 is the white light luminance value when the display apparatus 1000 is shipped.

In step S540, the server 2000 may transmit information about the determined symptom and information about the cause of the symptom to the display apparatus 1000. Also, according to embodiments, when the symptom is an aging change of the backlight 1420, the server 2000 may transmit the calculated correction data to the display device 1000.

In step S550, the display apparatus 1000 may display information about the received symptom and information about the cause of the symptom. Also, according to embodiments, the display apparatus 1000 may alleviate symptoms caused by aging of the backlight 1420 by correcting the RGB gain or the level of the driving signal of the backlight 1420 based on the received correction data. there is.

6 illustrates a method in which a server determines a symptom and a cause of the symptom using an artificial intelligence model, according to an embodiment of the present disclosure.

Referring to FIG. 6 , the server 2000 may include an artificial intelligence module that implements an artificial intelligence model trained according to at least one of machine learning, neural network, and deep learning algorithms.

A feature of the input vector of the artificial intelligence model may include the luminance of the backlight 1420 . For example, the characteristics of the input vector of the artificial intelligence model may include white luminance, red luminance, green luminance, and blue luminance of the backlight 1420 .

In addition, according to an embodiment, the characteristic of the input vector of the artificial intelligence model may be at least one of not only the luminance value of the backlight 1420, but also a screen parameter, a model name of the display device 1000, a date of shipment, a use time, and a main use application. It may include, but is not limited to.

A target of the artificial intelligence model may be the type and cause of symptoms appearing on the screen of the display device 1000 due to the failure of the backlight 1420 . For example, the type of symptom may be defined as yellowing of the screen, darkening of the screen, partially darkening, or no symptom. The cause of the symptoms may be defined as, for example, secular change, desorption of the backlight 1420, and the like. The artificial intelligence model outputs an output vector containing information corresponding to the target. The output vectors of the artificial intelligence model may include the type of symptom and the cause of the symptom.

The artificial intelligence model may be pretrained. For example, one training data set includes a luminance value obtained from the display device 1000, a screen parameter, a model name, a shipping date, a usage time, and a main application as input values of the training data, and the same display device Symptoms and causes of symptoms appearing in (1000) may be included as target values of training data.

The server 2000 may obtain a plurality of training data sets from the plurality of display devices 1000 and update the artificial intelligence module by learning an artificial intelligence model based on the obtained plurality of training data sets.

Accordingly, as shown in FIG. 6 , the server 2000 converts the luminance value, screen parameter, model name, shipment date, use time, and main use application obtained from the display device 1000 to the input value 610 of the artificial intelligence module. ), and one of the symptoms and causes 620 of the symptoms can be calculated as an output value.

7A illustrates a method of performing calibration by a display device, according to an embodiment of the present disclosure.

Referring to FIG. 7A , the display apparatus 1000 may perform correction based on user confirmation.

The display apparatus 1000 may receive information about a symptom displayed on a screen due to a failure of the backlight 1420 from the server 2000 and provide information about the received symptom. For example, the display device 1000 asks "Does the screen look yellow overall?" A question 710 asking whether symptoms received from the server 2000 are actually displayed on the screen may be displayed. Accordingly, the display apparatus 1000 may check whether the symptom analyzed by the server 2000 is correct.

Upon receiving a user input indicating that the displayed symptom actually appears on the screen from the user, the display apparatus 1000 may provide information about the cause of the symptom received from the server 2000 . For example, the display device 1000 is a "screen yellowing phenomenon due to aging of the backlight." A phrase 720 indicating the cause of the yellowing of the screen may be displayed.

In addition, upon receiving a user input answering that the displayed symptom actually appears on the screen, the display apparatus 1000 asks a question 730 asking whether to perform automatic correction based on the correction data received from the server 2000. can do. For example, the display apparatus 1000 may display a question such as “Do you want to automatically correct the aging change of the backlight?”.

Upon receiving a user input agreeing to perform correction from the user, the display apparatus 1000 may perform correction to compensate for the secular change of the backlight 1420 based on the correction data received from the server 2000. . For example, the display device 1000 may set the RGB gain received from the server 2000 as the RGB gain of the display panel.

Accordingly, by applying correction based on the user's confirmation of whether the symptom predicted by the server 2000 is correct, correction may not be applied when the symptom does not occur. Also, even if a symptom occurs, correction may not be applied when the user does not want correction.

7B illustrates a method of performing calibration by a display device according to another embodiment of the present disclosure.

Referring to FIG. 7B , the display device may perform correction for luminance degradation.

The display device 1000 asks, "Is the screen entirely dark?" A question 740 asking whether symptoms received from the server 2000 are actually displayed on the screen may be displayed. Upon receiving a user input selecting “Yes”, the display device 1000 responds with “a luminance degradation phenomenon due to a secular change of the backlight.” A phrase 750 indicating the cause of the luminance deterioration symptom may be displayed.

In addition, the display apparatus 1000 may display a question 760 asking whether to perform automatic correction, such as "do you want to execute automatic correction of aging change in backlight?". Upon receiving a user input selecting "Yes", the display apparatus 1000 may perform correction to compensate for the aging change of the backlight 1420 based on the correction data received from the server 2000 . For example, the display apparatus 1000 may drive the backlight 1420 based on the level of the backlight 1420 driving signal received from the server 2000 .

8 illustrates a method in which a display device provides a plurality of options for screen calibration, according to an embodiment of the present disclosure.

Referring to FIG. 8 , the display apparatus 1000 may provide a plurality of screen correction options based on a plurality of correction data sets.

The display device 1000 may receive a plurality of correction data sets from the server 2000 . For example, when the determined symptom is a secular change of the backlight 1420, the display device 1000 sets a plurality of correction data sets including the RGB gain and the driving signal level of the backlight 1420 as one correction data set to a server ( 2000) can be received.

As the plurality of correction data sets are received, the display device 1000 may provide chromaticity and luminance of a screen displayed when each correction data set is applied to the display device 1000 .

For example, the plurality of correction data sets include a first correction data set and a second correction data set, the first correction data set includes a first RGB gain and a driving signal level of the first backlight 1420, The second correction data set may include the second RGB gain and the driving signal level of the second backlight 1420 . The display apparatus 1000 may display one RGB image data as a first image based on a first correction data set and display it as a second image based on a second correction data set. Accordingly, although the first image and the second image are images of the same RGB image data, they may be expressed with different chromaticity and luminance.

Referring to FIG. 8 , upon receiving a user input for automatic screen correction, the display apparatus 1000 may display a first image 810 based on a first correction data set. In addition, upon receiving a user input for selecting the icons 820 and 830 for viewing an image generated when a set is applied to another set of correction data, the display apparatus 1000 displays a second image based on the second correction data set. can display. Accordingly, the display device 1000 may express chromaticity of the display device 1000 that changes according to a plurality of correction data sets.

In addition, as a user input for selecting one of images having different chromaticities is received through the user selection icon 840, the display apparatus 1000 converts a set of correction data corresponding to the selected image to the RGB gain and backlight of the display panel. It can be determined as the driving signal level of 1420.

9 illustrates a method of displaying, by a display device, information about a symptom caused by a backlight falling off and information about a cause of the symptom, according to an embodiment of the present disclosure.

Referring to FIG. 9 , the display device 1000 asks, "Is part of the screen dark?" A question 910 asking whether symptoms received from the server 2000 are actually displayed on the screen may be displayed. Upon receiving a user input selecting “Yes”, the display apparatus 1000 may display a phrase 920 indicating the cause of the decrease in luminance of some of the screens, “It seems that some of the backlights are missing”. . In addition, the display apparatus 1000 may display a phrase 930 representing information on a method for repairing a missing backlight 1420, such as "backlight replacement required".

FIG. 10 illustrates a method for providing information about a symptom appearing on a screen due to a defect of a display panel and information about a cause of the symptom by a display device according to an embodiment of the present disclosure.

In step S1010, the display apparatus 1000 may detect a luminance value of light transmitted through the display panel.

The display apparatus 1000 may include a panel luminance sensor that detects a luminance value of light transmitted through the display panel.

In step S1020, as the luminance value of the light transmitted by the display panel is detected using the panel luminance sensor, the display apparatus 1000 may transmit the detected luminance value to the server 2000.

The panel luminance sensor may be provided on the side of the panel.

The display apparatus 1000 may request information about symptoms expected to appear on the screen of the display apparatus 1000 due to a defect in the display panel and information about the cause of the symptoms while transmitting a luminance value.

In step S1030, the server 2000 may determine symptoms and causes of the symptoms appearing on the screen of the display apparatus 1000 due to a defect in the display panel, based on the luminance value of light transmitted through the display panel.

Symptoms appearing on the screen of the display device 1000 due to a defect in the display panel and the cause of the symptoms are, for example, a black spot on a part of the screen due to a partial breakage of the display panel or breakage of a film cable connecting the display panel and the panel board. It may include horizontal stripes or vertical stripes by, but is not limited thereto.

The server 2000 may determine a symptom appearing on the screen due to a defect in the display panel and a cause of the symptom, based on a pattern of a plurality of luminance values received from the display apparatus 1000 . In addition, the server 2000 may set the luminance of light transmitted by the display panel as a characteristic, and may determine symptoms and causes of the symptoms by using an artificial intelligence model as a target due to defects in the display panel. In this case, when the luminance value of light transmitted by the display panel is set as an input value of the artificial intelligence model, the server 2000 may determine an output value as a symptom and a cause of the symptom due to a defect in the display panel.

In step S1040, the server 2000 may transmit information about the determined symptom and information about the cause of the symptom to the display apparatus 1000.

In step S1050, the display apparatus 1000 may display information about the received symptom and information about the cause of the symptom.

For example, the display apparatus 1000 may display a question asking whether the symptoms received from the server 2000, such as "Do you see a vertical line on the screen?", actually appear on the screen. Upon receiving a user input selecting "Yes", the display device 1000 displays a phrase informing the cause of the symptom of a vertical line appearing on the screen "Some of the film cables connecting the panel and the panel board appear to be broken" can display.

11 illustrates a method of adjusting a gain value of a display panel according to an ambient color of the display device according to an embodiment of the present disclosure.

Referring to FIG. 11 , the display device 1000 may be a refrigerator. When the display device 1000 is a refrigerator, the display panel may be provided on a part of the door 1194 of the refrigerator.

Since the colors of the surrounding environment of the display device 1000 vary, colors displayed on the screen of the display device 1000 may appear different from intended colors. For example, when the display device 1000 is a refrigerator, the color displayed on the screen of the display device 1000 may be different depending on the color of the refrigerator door 1194 . In addition, since the color of the refrigerator door 1194 looks different according to the color of the lights 1191 and 1192 around the refrigerator, the color displayed on the screen of the display device 1000 may also look different.

When the display panel 1410 is provided on a portion of the door 1194 of the refrigerator, when the RGB values of the color of the door 1194 are input as the RGB values of the display panel 1410, the display device 1000 operates on the door The RGB gain of the display panel 1410 may be adjusted so that the color of 1194 and the color displayed on the screen of the display device 1000 are the same. For example, when the RGB value of the color of the door 1194 is input as the RGB value of the display device 1000, the difference between the color of the refrigerator door 1194 and the color displayed on the display device 1000 is equal to or less than the reference value. You can adjust the RGB values as much as possible. According to an embodiment, the difference between the color of the refrigerator door 1194 and the color displayed on the display device 1000 may be measured as a distance between color coordinates of the two colors. The color coordinates may correspond to, for example, YCbCr color coordinates. As another example, when the RGB value of the color of the door 1194 is input as the RGB value of the display device 1000, the color temperature difference between the color temperature of the refrigerator door 1194 and the color temperature of the screen of the display device 1000 is 100 degrees or less. , and the RGB gain of the display device 1000 may be adjusted so that the difference between the brightness of the refrigerator door 1194 and the color luminance of the screen of the display device 1000 is 5% or less.

For example, in the case of the door 1194 having a glam white color, the display device 1000 adds R gain +4, G gain -2, and B gain -3 to the RGB gain of the display panel 1410, and the backlight gain By adding +5 to , the color of the glam white door and the color of the screen of the display device 1000 expressing RGB of the glam white color can be set to look similar.

As shown in FIG. 11 , the door 1194 of the refrigerator may exhibit different color temperatures or different brightness according to surrounding lights 1191 and 1192 .

The display device 1000 detects the illuminance around the display device 1000 by using the illuminance sensor provided in the display device 1000, and provides a predetermined RGB gain adjustment value corresponding to the detected illuminance to the display panel 1410. It can be added to or subtracted from the RGB gain.

12 illustrates a device diagram of a display device according to an embodiment of the present disclosure.

Referring to FIG. 12 , the display device 1000 includes a sound output unit 1520, a display 1400, a backlight luminance sensor 1430, a panel luminance sensor 1440, a user input unit 1800, a memory 1600, and a communication unit. 1700, a home appliance function module 1200, and a power module 1300 may be included. The same reference numerals are used for components identical to those shown in FIGS. 2 and 3 .

The display device 1000 may be a home appliance such as a refrigerator (not shown), a washing machine (not shown), an air purifier (not shown), and an oven (not shown).

Not all illustrated components are essential components of the display device 1000 . The display apparatus 1000 may be implemented with more components than those shown in FIG. 12 or may be implemented with fewer components than those shown in FIG. 12 .

The sound output unit 1520 may output sound signals to the outside of the display device 1000 . The sound output unit 1520 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display 1400 may include a display panel 1410 and a backlight 1420 .

The display 1400 may output image data processed by an image processing unit (not shown) through the display panel 1410 under the control of the processor 1100 . The display panel 1410 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3D display ( 3D display) and at least one of electrophoretic display.

Also, the display 1400 may include a backlight controller (not shown). The backlight 1420 may be driven by a backlight driving signal output from a backlight controller (not shown), and brightness may be adjusted according to the level of the backlight driving signal.

The backlight luminance sensor 1430 may detect at least one of a white luminance value, a blue luminance value, a red luminance value, and a green luminance value of light emitted from the backlight 1420 .

The panel luminance sensor 1440 may detect a luminance value of light transmitted through the display panel. The luminance value of the light transmitted through the display panel may include a white luminance value, a red luminance value, a green luminance value, and a blue luminance value.

The user input unit 1800 may receive a user input for controlling the display apparatus 1000 . The user input unit 1800 may include a key 1810, a touch screen 1820, and the like. The user input unit 1800 receives a user input and transfers it to the processor 1100 .

The user input unit 1800 includes a touch panel that detects a user's touch, a button that receives a user's push manipulation, a wheel that receives a user's rotation manipulation, a keyboard, and a dome switch. It may include a user input device, but is not limited thereto.

Also, the user input unit 1800 may include a voice recognition device (not shown) for voice recognition. For example, the voice recognition device may be a microphone, and the voice recognition device may receive a user's voice command or voice request. Accordingly, the processor 1100 may control an operation corresponding to the voice command or voice request to be performed.

Also, the user input unit 1800 may include a motion detection sensor (not shown). For example, a motion detection sensor (not shown) may detect motion of the display apparatus 1000 and receive the detected motion as a user input. In addition, the aforementioned voice recognition device (not shown) and motion detection sensor (not shown) may not be included in the user input unit 1800, but may be included in the display device 1000 as modules independent of the user input unit 1800. there is.

The memory 1600 stores various information, data, commands, programs, and the like necessary for the operation of the display apparatus 1000 . The memory 1600 may include at least one of volatile memory and non-volatile memory, or a combination thereof. The memory 1600 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg SD or XD memory, etc.), RAM (RAM, Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk , an optical disk, and at least one type of storage medium. Also, the display device 1000 may operate a web storage or cloud server that performs a storage function on the Internet.

The communication unit 1700 may transmit/receive information, an image signal, or an audio signal according to a protocol with a source device (not shown) or an external server 2000 under the control of the processor 1100 . The communication unit 1700 may include at least one communication module and at least one port for transmitting and receiving data to and from an external device (not shown).

Also, the communication unit 1700 may communicate with an external device through at least one wired or wireless communication network. The communication unit 1700 may include at least one of a short-distance communication unit 1710 and a long-distance communication unit 1720, or a combination thereof. The communication unit 1700 may include at least one antenna for wirelessly communicating with other devices.

The short-range communication unit 1710 includes at least one communication module (not shown) that performs communication according to a communication standard such as Bluetooth, Wi-Fi, Bluetooth Low Energy (BLE), NFC/RFID, Wi-Fi Direct, UWB, or ZIGBEE. ) may be included. In addition, the remote communication unit 1720 may include a communication module (not shown) that performs communication through a network for internet communication. In addition, the remote communication unit 1720 may include a mobile communication unit that performs communication according to communication standards such as 3G, 4G, 5G, and/or 6G.

Also, the communication unit 1700 may include a communication module capable of receiving a control command from a remote controller (not shown) located in a short distance, for example, an infrared (IR) communication module.

The home appliance function module 1200 includes an operation module that performs the intrinsic function of the display device 1000 . When the display device 1000 corresponds to a washing machine, the home appliance function module 1200 includes a washing module. The washing module may include a washing tub, a water supply unit, a drainage unit, a motor, a door, a detergent inlet, and the like. When the display device 1000 corresponds to a refrigerator, the home appliance function module 1200 may include a refrigerating/freezing module. The refrigeration/freezing module may include a container, a cooler, a door, a temperature sensor, and the like. When the display device 1000 corresponds to a dryer, the home appliance function module 1200 may include a drying module. The drying module may include a laundry container, a motor, a dehumidifying unit, a drainage unit, a door, a dust filter, a condenser, and the like. When the display device 1000 corresponds to the cleaning module, the home appliance function module 1200 may include the cleaning module. The cleaning module may include a vacuum suction part, a dust bin, a filter, a dust moving pipe, and the like.

The power module 1300 may supply power to the display device 1000 .

The processor 1100 controls overall operations of the display device 1000 . The processor 1100 may control components of the display apparatus 1000 by executing a program stored in the memory 1600 .

Depending on the embodiment, the processor 1100 may include a separate NPU that performs an operation of a machine learning model. Also, the processor 1100 may include a central processing unit (CPU), a graphic processing unit (GPU), and the like.

Depending on the embodiment, the processor 1100 may include a hardware structure (eg, a neural network processing device) specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the display device 1000 itself where the artificial intelligence model is performed, or may be performed through the server 2000.

The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, a software structure in addition to a hardware structure.

The term "module" or "unit" used in various embodiments of the document may include a unit implemented in hardware, software, or firmware, and may include, for example, a term such as logic, logical block, component, or circuit. can be used interchangeably. A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document are software (eg, a program) including one or more instructions stored in a storage medium readable by a machine (eg, the display device 1000 or the server 2000). can be implemented as For example, the processor of the device may call at least one command among one or more commands stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store™) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

Claims (20)

In the display device,
communications department;
a display with a backlight;
backlight luminance sensor; and
Emitting light through the backlight and detecting a luminance value of the light emitted from the backlight through the backlight luminance sensor;
Through the communication unit, sensor information including the luminance value is transmitted to the server, and as the sensor information is transmitted, information about symptoms appearing on the screen of the display device related to the backlight and the information from the server receive information about the cause of the symptoms;
and at least one processor configured to display information about the symptom and information about a cause of the symptom through the display.
According to claim 1,
Symptoms appearing on the screen of the display device in relation to the backlight include at least one of yellowing of the screen, a symptom of overall darkening of the screen, and a symptom of partial darkening of the screen,
The cause of the symptom includes at least one of secular change of the backlight and omission of the backlight.
According to claim 1,
The at least one processor transmits to the server device usage information including at least one of a model name, a shipping date, a screen parameter, a usage time, and a mainly used application of the display device, together with the sensor information;
The information on the symptom appearing on the screen of the display device and the information on the cause of the symptom are information output when the sensor information and the device usage information are set as inputs of a pre-learned artificial intelligence model in the server, display device.
According to claim 1,
The at least one processor,
Based on the information about the received symptom, displaying a question asking whether the symptom appears on the screen;
Displaying information about the cause of the symptom upon receiving a user input notifying that the symptom is appearing on the screen.
According to claim 1,
The display device,
Further comprising a display panel that expresses an image by adjusting transmission amounts of red, green, and blue colors in the irradiated light according to RGB image data and an RGB gain,
The at least one processor,
When the cause of the symptom is determined to be the aging change of the backlight, further receiving correction data for compensating for the aging change of the backlight from the server;
Based on the received correction data, at least one of the RGB gain and the luminance value of the light emitted from the backlight is adjusted.
According to claim 5,
The at least one processor,
To alleviate the symptoms of the secular change of the backlight, display a question asking whether to adjust the screen;
According to receiving a user input commanding to adjust the screen, based on the received correction data, at least one of the RGB gain and the luminance value of light emitted from the backlight is adjusted.
According to claim 5,
The correction data for compensating for the aging change of the backlight includes a plurality of correction data sets,
By driving the display panel based on each of the plurality of correction data sets and outputting a plurality of images having different chromaticities for one RGB image data, the chromaticity of the display device that changes according to the plurality of correction data sets is determined. outputs the information it represents,
and determining a correction data set corresponding to the selected image as the RGB gain of the display panel upon receiving a user input for selecting one of the plurality of images having different chromaticities.
According to claim 1,
The at least one processor,
Upon receiving a user input for selecting a screen adjustment menu of the display device, the display device transmits the sensor information to a server and displays information about the symptom and information about the cause of the symptom received from the server. .
According to claim 1,
The at least one processor,
Based on the luminance value of the light emitted from the backlight falling below a threshold value, the display transmits the sensor information to a server, and displays information about the symptom and information about a cause of the symptom received from the server. Device.
According to claim 1,
The display further includes a display panel,
The display device,
Further comprising a panel luminance sensor for detecting a luminance value of light transmitted by the display panel,
The sensor information transmitted to the server further includes a luminance value of light transmitted by the detected display panel,
The at least one processor,
The display device further receives, from the server, information about a symptom appearing on the screen of the display device in relation to the display panel and information about a cause of the symptom.
In the display device control method performed by the display device,
detecting a luminance value of light emitted from the backlight using a backlight luminance sensor;
transmitting sensor information including the luminance value to a server;
receiving, from the server, information about a symptom appearing on the screen of the display device in relation to the backlight and information about a cause of the symptom, as the sensor information is transmitted; and
A display device control method comprising the step of displaying information about the symptom and information about the cause of the symptom.
According to claim 11,
Symptoms appearing on the screen of the display device in relation to the backlight include at least one of yellowing of the screen, a symptom of overall darkening of the screen, and a symptom of partial darkening of the screen,
The cause of the symptom includes at least one of secular change of the backlight and omission of the backlight.
According to claim 11,
The display device control method,
Transmitting, together with the sensor information, device usage information including at least one of a model name, a shipment date, a screen parameter, a usage time, and a mainly used application of the display device to the server,
The information on the symptom appearing on the screen of the display device and the information on the cause of the symptom are information output when the sensor information and the device usage information are set as inputs of a pre-learned artificial intelligence model in the server, How to control a display device.
According to claim 11,
Displaying information about the symptom and information about the cause of the symptom,
displaying a question asking whether or not the symptom appears on the screen, based on the information about the received symptom; and,
and displaying information about a cause of the symptom upon receiving a user input notifying that the symptom appears on the screen.
According to claim 11,
In the display device control method,
receiving correction data for compensating for the aging of the backlight from the server when the cause of the symptom is determined to be the aging of the backlight; and
Further comprising adjusting at least one of an RGB gain and a luminance value of light emitted from the backlight based on the received correction data.
According to claim 15,
Adjusting at least one of the RGB gain and the luminance value of light emitted from the backlight, based on the received correction data,
displaying a question asking whether to adjust the screen in order to alleviate symptoms caused by the secular change of the backlight;
receiving a user input commanding to adjust the screen; and
and adjusting at least one of the RGB gain and a luminance value of light emitted from the backlight based on the received correction data.
According to claim 15,
The correction data for compensating for the aging change of the backlight includes a plurality of correction data sets,
Adjusting at least one of an RGB gain and a luminance value of light emitted from the backlight, based on the received correction data,
By driving a display panel based on each of the plurality of correction data sets and outputting a plurality of images having different chromaticities for one RGB image data, the chromaticity of the display device that varies according to the plurality of correction data sets is expressed. outputting information to; and
and determining a correction data set corresponding to the selected image as the RGB gain of the display panel when a user input for selecting one of the plurality of images having different chromaticities is received.
According to claim 11,
Transmitting the sensor information including the luminance value,
and transmitting the sensor information to a server when a user input for selecting a screen adjustment menu of the display device is received.
According to claim 11,
Transmitting the sensor information including the luminance value,
and transmitting the sensor information to a server based on a luminance value of light emitted from the backlight falling below a threshold value.
According to claim 11,
The display device control method,
Further comprising detecting a luminance value of light transmitted by the display panel,
The sensor information transmitted to the server further includes a luminance value of light transmitted by the detected display panel,
Receiving, from the server, information about symptoms appearing on the screen of the display device in relation to the backlight and information about the cause of the symptoms,
A display device control method comprising the step of receiving information about a symptom appearing on the screen of the display device in relation to the display panel and information about a cause of the symptom.

Images