WO2024005235A1 - Dispositif d'affichage et procédé de commande de dispositif d'affichage - Google Patents

Dispositif d'affichage et procédé de commande de dispositif d'affichage Download PDF

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Publication number
WO2024005235A1
WO2024005235A1 PCT/KR2022/009425 KR2022009425W WO2024005235A1 WO 2024005235 A1 WO2024005235 A1 WO 2024005235A1 KR 2022009425 W KR2022009425 W KR 2022009425W WO 2024005235 A1 WO2024005235 A1 WO 2024005235A1
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WIPO (PCT)
Prior art keywords
display device
display
amount
sensor
light
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PCT/KR2022/009425
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English (en)
Korean (ko)
Inventor
임경률
승호석
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2022/009425 priority Critical patent/WO2024005235A1/fr
Publication of WO2024005235A1 publication Critical patent/WO2024005235A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers

Definitions

  • a method of measuring the power consumption of the display device involves irradiating energy to a sensor provided in the display device and controlling the display based on the irradiated energy.
  • the purpose of the embodiments is to provide a display device and a display control method to solve the above-described problems.
  • the purpose of the display device and display control method according to embodiments is to enable power consumption measurement even when the shape, state, or arrangement of the display changes.
  • the purpose of the display device and display control method according to embodiments is to provide the same display brightness even when the shape, state, or arrangement of the display changes.
  • the purpose of the display device and display control method according to embodiments is to provide the same display brightness when the amount of ambient light is the same.
  • the purpose of the display device and display control method according to embodiments is to improve the appearance of the display.
  • a display A base that supports the display and includes a sensor that senses the amount of light irradiated; and a processor that corrects the amount of light received by the sensor based on the amount of sensed light.
  • a display device including a is provided.
  • a processor calculates a gain for the amount of light received by a sensor based on the amount of sensed light, and applies the gain to correct the amount of light received by the sensor.
  • a processor provides a display device that controls brightness of the display in response to the corrected amount of light received.
  • a processor provides a display device that determines the reference light amount when the display is at a preset angle with respect to the base.
  • a processor provides a display device that corrects the amount of light received by a sensor when the sensed amount of light is outside a preset range from the reference light amount.
  • a display device includes: a state sensor that senses a state in which a base is coupled to a display; Further comprising: the processor, if it is determined that there is a change in the state sensed by the state sensor, corrects the amount of light received by the sensor, and if it is determined that there is no change in the state sensed by the state sensor, the processor does not correct the amount of light received by the sensor. , provides a display device.
  • a display device where the sensor is positioned at the center of the front surface of the base at an angle of 45 degrees to the ground.
  • a display may include one or more auxiliary sensors located on at least a portion of an edge of the display;
  • a display device is provided, further comprising:
  • the display device includes a hinge unit connecting the display and the base so that the angle of the base can be adjusted in the front and rear directions with respect to the display;
  • a display device is provided, further comprising:
  • a display device includes: a stand fixed to one surface of a base and extending from the base to support the base while maintaining a certain distance from the ground; A display device is provided, further comprising:
  • the display device includes: a bracket mounted on one surface of the base and fixing the base to a wall surface inclined with respect to the ground;
  • a display device is provided, further comprising:
  • sensing the amount of light irradiated by a sensor A step of the processor calculating a gain for the amount of light received by the sensor based on the amount of sensed light; A step of the processor correcting the amount of light received by the sensor by applying a gain; Controlling the brightness of the display according to the sensor-corrected amount of light received; Provides a control method of a display device including.
  • the display device and the control method of the display device can measure power consumption for the display device even when the state (scene) of the display device changes.
  • the display device and the control method of the display device may change the brightness of the display in response to a change in the amount of surrounding light.
  • the display device and the control method of the display device according to embodiments improve the appearance of the display.
  • FIG. 1 is a block diagram illustrating each configuration of a display device according to embodiments.
  • Figure 7 is a diagram illustrating an example of correcting the amount of light received according to embodiments.
  • Figure 8 is a diagram illustrating an example of correcting the amount of light received according to embodiments.
  • FIG. 9 is a flowchart explaining a method of controlling a display device according to embodiments.
  • the display device 1000 described in this specification is a concept that includes all display devices that display information using a unit pixel or a set of unit pixels. Therefore, it is not limited to finished products but can also be applied to parts.
  • a panel corresponding to a part of a digital TV also independently corresponds to a display device in this specification.
  • Finished products include mobile phones, smart phones, laptop computers, digital broadcasting terminals, PDAs (personal digital assistants), PMPs (portable multimedia players), navigation, Slate PCs, Tablet PCs, and Ultra This may include books, digital TVs, desktop computers, etc.
  • 'the base is tilted/rotated/moved with respect to the display' and 'the display is tilted/rotated/moved with respect to the base' may be used interchangeably.
  • changing the state of the display means that the display moves its position relative to the base. At this time, movement of position includes left and right, forward and backward, and up and down movements.
  • changing the shape of the display means changing the shape, such as the display being folded or rolled.
  • changing the state of the display means changing the coupling mode with the base.
  • Figure 1 is a block diagram for explaining each configuration of the display device 1000 according to embodiments.
  • the broadcast reception unit 110 may include a tuner unit 111 and a demodulation unit 112.
  • the display device 1000 includes only the external device interface 171 and the network interface 172 among the broadcast receiver 110, the external device interface 171, and the network interface 172. It is also possible to do so. That is, the display device 1000 may not include the broadcast reception unit 110.
  • the tuner unit 111 may select a broadcast signal corresponding to a channel selected by the user or all previously stored channels among broadcast signals received through an antenna (not shown) or a cable (not shown).
  • the tuner unit 111 can convert the selected broadcast signal into an intermediate frequency signal or a baseband video or audio signal.
  • the tuner unit 111 may convert it into a digital IF signal (DIF), and if the selected broadcast signal is an analog broadcast signal, it may be converted into an analog baseband video or audio signal (CVBS/SIF). That is, the tuner unit 111 can process digital broadcasting signals or analog broadcasting signals.
  • the analog base band video or audio signal (CVBS/SIF) output from the tuner unit 111 may be directly input to the control unit 180.
  • the tuner unit 111 can sequentially select broadcast signals of all broadcast channels stored through a channel memory function among received broadcast signals and convert them into intermediate frequency signals or baseband video or audio signals.
  • the tuner unit 111 may be equipped with multiple tuners in order to receive broadcast signals of multiple channels.
  • a single tuner that simultaneously receives broadcast signals from multiple channels is also possible.
  • the demodulator 112 may receive the digital IF signal (DIF) converted by the tuner unit 111 and perform a demodulation operation.
  • the demodulator 112 may perform demodulation and channel decoding and then output a stream signal (TS).
  • the stream signal may be a multiplexed video signal, audio signal, or data signal.
  • the stream signal output from the demodulator 112 may be input to the control unit 180.
  • the control unit 180 can output video through the display module 150 and audio through the audio output unit 160.
  • the sensing unit 120 refers to a device that detects changes within the display device 1000 or external changes.
  • a device that detects changes within the display device 1000 or external changes.
  • proximity sensor e.g., proximity sensor, illumination sensor, touch sensor, infrared sensor, ultrasonic sensor, optical sensor, e.g. , camera), a voice sensor (e.g., a microphone), a battery gauge, and an environmental sensor (e.g., a hygrometer, a thermometer, etc.).
  • the control unit 180 can check the status of the display device 1000 based on the information collected by the sensing unit 120 and notify the user when a problem occurs or control it to maintain the best condition by adjusting it on its own.
  • the content, image quality, size, etc. of the image provided to the display module 180 can be controlled differently depending on the viewer or surrounding illumination detected by the sensing unit to provide an optimal viewing environment.
  • the number of functions mounted on display devices increases, and the number of sensing units 20 also increases.
  • the input unit 130 may be provided on one side of the main body of the display device 1000.
  • the input unit 130 may include a touch pad, physical buttons, etc.
  • the input unit 130 can receive various user commands related to the operation of the display device 1000 and transmit control signals corresponding to the input commands to the control unit 180.
  • a minimal physical button is located on the back or side, and user input can be received through the remote control device 200 through a touchpad or a user input interface unit 173, which will be described later.
  • the storage unit 140 may store programs for processing and controlling each signal in the control unit 180, or may store processed video, audio, or data signals.
  • the storage unit 140 stores application programs designed for the purpose of performing various tasks that can be processed by the control unit 180, and selects some of the stored application programs at the request of the control unit 180. can be provided.
  • Programs stored in the storage unit 140 are not particularly limited as long as they can be executed by the control unit 180.
  • the storage unit 140 may perform a function for temporarily storing video, voice, or data signals received from an external device through the external device interface unit 171.
  • the storage unit 140 can store information about a certain broadcast channel through a channel memory function such as a channel map.
  • FIG. 1 shows an embodiment in which the storage unit 140 is provided separately from the control unit 180, the scope of the present invention is not limited thereto, and the storage unit 140 may be included in the control unit 180.
  • the storage unit 140 includes volatile memory (e.g., DRAM, SRAM, SDRAM, etc.), non-volatile memory (e.g., flash memory, hard disk drive (HDD), and solid state drive (Solid- It may include at least one of state drive (SSD), etc.).
  • volatile memory e.g., DRAM, SRAM, SDRAM, etc.
  • non-volatile memory e.g., flash memory, hard disk drive (HDD), and solid state drive (Solid- It may include at least one of state drive (SSD), etc.
  • the display module 150 converts the video signal, data signal, OSD signal, and control signal processed by the control unit 180 or the video signal, data signal, and control signal received from the interface unit 171 to generate a driving signal. You can.
  • the display module 150 may include a display panel including a plurality of pixels.
  • a plurality of pixels provided in the display panel may include RGB subpixels.
  • a plurality of pixels provided in the display panel may include RGBW subpixels.
  • the display module 150 may convert image signals, data signals, OSD signals, control signals, etc. processed by the control unit 180 to generate driving signals for a plurality of pixels.
  • the display module 150 can be a plasma display panel (PDP), a liquid crystal display (LCD), an organic light emitting diode (OLED), a flexible display, etc., and can also be capable of a three-dimensional display (3D display). It may be possible.
  • the 3D display module 150 can be divided into a glasses-free type and a glasses type.
  • the display device 1000 includes a display module 150 that occupies most of the front area and a case that covers the rear side of the display module 150 and packages the display module 150.
  • the display device 1000 is a display module 150 that can be bent, such as LED (Light Emitting Diodes) or OLED (Organic Light Emitting Diodes), to implement a curved screen beyond a flat surface. can be used.
  • LED Light Emitting Diodes
  • OLED Organic Light Emitting Diodes
  • the backlight unit is a device that uniformly supplies the light source and the light supplied from the light source to the liquid crystal located on the front.
  • the backlight unit became increasingly thinner, it was possible to implement a thin LCD, but it is difficult to implement the backlight unit using a flexible material, and when the backlight unit is bent, it is difficult to supply light uniformly to the liquid crystal, causing a problem in that the brightness of the screen changes.
  • each element that makes up the pixel emits light on its own, so it can be implemented in a curved manner without using a backlight unit.
  • each element since each element emits its own light, even if the positional relationship with neighboring elements changes, its own brightness is not affected, so the flexible display module 150 can be implemented using LED or OLED.
  • OLED Organic Light Emitting Diode
  • OLED uses three types of phosphor organic compounds, including red, green, and blue, which have a self-luminous function. Electrons and positively charged particles injected from the cathode and anode are used to emit light. Since it is a light-emitting display product that utilizes the phenomenon of self-emitting light by combining within organic materials, there is no need for a backlight (halo device) that reduces color.
  • the LED (Light Emitting Diode) panel is a technology that uses one LED element as one pixel, and the size of the LED element can be reduced compared to the prior art, making it possible to implement a flexible display module 150.
  • LED TVs used LEDs as a light source for the backlight unit that supplied light to the LCD, but the LEDs themselves did not constitute a screen.
  • the display module 150 includes a display panel, a coupling magnet located on the back of the display panel, a first power supply unit, and a first signal module.
  • the display panel may include a plurality of pixels (R, G, B).
  • a plurality of pixels (R, G, B) may be formed in each area where a plurality of data lines and a plurality of gate lines intersect.
  • a plurality of pixels (R, G, B) may be placed or arranged in a matrix form.
  • the plurality of pixels (R, G, B) include a red (R) subpixel, a green (Green, 'G') subpixel, and a blue (Blue, 'B') subpixel. It can be included.
  • the plurality of pixels (R, G, B) may further include a white (hereinafter referred to as 'W') subpixel.
  • the side of the display module 150 that displays images may be referred to as the front or front side.
  • the side from which the image cannot be observed may be referred to as the rear or back side.
  • the audio output unit 160 receives the audio-processed signal from the control unit 180 and outputs it as audio.
  • the external device interface unit 171 and/or the network interface unit 172 supports Wi-Fi (Wireless Fidelity), Bluetooth, Bluetooth Low Energy (BLE), Zigbee, and NFC (Near Field Communication). ), communication modules for short-range communication such as LTE (long-term evolution), LTE-A (LTE Advance), CDMA (code division multiple access), WCDMA (wideband CDMA), UMTS (universal mobile telecommunications system), WiBro ( It may include a communication module for cellular communication such as Wireless Broadband).
  • Wi-Fi Wireless Fidelity
  • BLE Bluetooth Low Energy
  • Zigbee Zigbee
  • NFC Near Field Communication
  • communication modules for short-range communication such as LTE (long-term evolution), LTE-A (LTE Advance), CDMA (code division multiple access), WCDMA (wideband CDMA), UMTS (universal mobile telecommunications system), WiBro ( It may include a communication module for cellular communication such as Wireless Broadband).
  • the image signal processed by the control unit 180 may be input to the display module 150 and displayed as an image corresponding to the image signal. Additionally, the image signal processed by the control unit 180 may be input to an external output device through the external device interface unit 171.
  • control unit 180 can cause a certain 2D object to be displayed in the image displayed on the display module 150.
  • the object may be at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), various menus, widgets, icons, still images, videos, and text.
  • EPG Electronic Program Guide
  • control unit 180 may modulate and/or demodulate the signal using an amplitude shift keying (ASK) method.
  • ASK amplitude shift keying
  • the amplitude shift keying (ASK) method may refer to a method of modulating a signal by varying the amplitude of the carrier wave according to the data value, or restoring an analog signal to a digital data value according to the amplitude of the carrier wave.
  • the display device 1000 may further include a photographing unit (not shown).
  • the photography unit can photograph the user.
  • the photographing unit can be implemented with one camera, but is not limited to this, and can also be implemented with a plurality of cameras. Meanwhile, the photographing unit may be embedded in the display device 1000 on top of the display module 150 or may be placed separately. Image information captured by the photographing unit may be input to the control unit 180.
  • the control unit 180 may recognize the user's location based on the image captured by the photographing unit. For example, the control unit 180 may determine the distance (z-axis coordinate) between the user and the display device 1000. In addition, the control unit 180 may determine the x-axis coordinate and y-axis coordinate within the display module 150 corresponding to the user's location.
  • the control unit 180 may detect the user's gesture based on each or a combination of images captured from the photographing unit or signals detected from the sensor unit.
  • the power supply unit 190 may include a converter (not shown) that converts AC power to DC power and a Dc/Dc converter (not shown) that converts the level of DC power.
  • the power supply unit 190 receives power from the outside and serves to distribute power to each component.
  • the power supply unit 190 may use a method of supplying AC power by directly connecting to an external power source, and may include a power supply unit 190 that includes a battery and can be used by charging.
  • the charging holder can be connected to the display device through a terminal exposed to the outside, or the built-in battery can be charged when approached wirelessly.
  • the remote control device 200 may transmit user input to the user input interface unit 173.
  • the remote control device 200 may use Bluetooth, Radio Frequency (RF) communication, Infrared Radiation communication, Ultra-wideband (UWB), ZigBee, etc.
  • the remote control device 200 may receive video, audio, or data signals output from the user input interface unit 173, and display them or output audio signals on the remote control device 200.
  • RF Radio Frequency
  • UWB Ultra-wideband
  • ZigBee ZigBee
  • the above-described display device 1000 may be a fixed or mobile digital broadcasting receiver capable of receiving digital broadcasting.
  • two or more components may be combined into one component, or one component may be subdivided into two or more components.
  • the functions performed by each block are for explaining embodiments of the present invention, and the specific operations or devices do not limit the scope of the present invention.
  • Figure 2 shows an example of a method for measuring power consumption in accordance with these energy regulations.
  • 1000 represents a display device and 2000 represents a light source.
  • the light source 2000 is, for example, a solid state lamp projector and uses a solid gain material.
  • the light source 2000 is installed at an angle.
  • the light source 2000 emits a projection beam (L) toward the display device 1000.
  • the projection beam L emitted from the light source 200 is aligned with the vertical axis and is focused on a light meter.
  • the projection beam L is set to 45° ⁇ 10° with respect to the vertical plane of the display device 1000.
  • the projected image I includes a base 1200.
  • the received amount of light of the projection beam L emitted from the light source 2000 must be secured.
  • the display device 1000 is used in various states according to technological advancement. Examples of these various states are described in Figure 3.
  • FIG. 3 is a diagram illustrating a modified example of a display device according to embodiments.
  • the display device 1000 includes a display 1100 (eg, the display module described in FIG. 1) and a base 1200 supporting the display 1100.
  • a display 1100 eg, the display module described in FIG. 1
  • a base 1200 supporting the display 1100.
  • Figure 3(a) shows a front view of the display device.
  • the x-axis direction is left and right. That is, the -x direction represents the left, and the x direction represents the right. Additionally, the z-axis direction is up and down.
  • Figure 3(a) shows the display 1100 in a landscape mode where the left and right directions are longer than the up and down directions. At this time, the display 1100 is supported by the base 1200. The display 1100 is supported by the base 1200 in landscape mode.
  • Figure 3(b) shows a side view of the display device.
  • the y-axis direction is the front-back direction. That is, the y direction represents the front, and the -y direction represents the rear.
  • the display device 1000 further includes a connection portion 1300 connecting the display 1100 and the base 1200.
  • the display 1100 can be tilted with respect to the base 1200 by the connection portion 1300. That is, the display 1100 can be tilted in the front-to-back direction with respect to the base 1200 by the connecting portion 1300. Through this, users can conveniently view the display 1100 regardless of the height at which the display device 1000 is mounted.
  • Figure 3(c) shows a front view of the display device.
  • Figure 3(c) shows the display 1100 in a portrait mode where the vertical direction is longer than the left and right directions.
  • the display device 1000 can rotate with respect to the base 1200 by the connection portion 1300. That is, the display device 1000 provides the portrait mode state in FIG. 3(c) by rotating the display 1100 with respect to the base 1200 from the landscape mode state in FIG. 3(a).
  • the angle at which the display device 1000 can rotate is, for example, 0 degrees to 180 degrees. Accordingly, the display device 1000 can provide a landscape mode or portrait mode by rotating 0 degrees or 90 degrees, and can also provide a different version of the display by rotating 45 degrees.
  • the display device 1000 further includes a sensor 1210.
  • the sensor 1210 is placed on one side of the base 1200, for example.
  • the sensor 1210 is placed on the front of the base 1200, for example.
  • the sensor 1210 is, for example, an illumination sensor and senses the amount of light.
  • the sensor 1210 senses the projection beam L described in FIG. 2.
  • the display 1100 outputs appropriate luminance in response to the sensed amount of light. Therefore, the sensor 1210 needs to secure a sufficient amount of light to output appropriate luminance.
  • FIG. 4 is a diagram illustrating an example of measuring power consumption in a modified example of a display device according to embodiments.
  • FIG. 4 (a) is the same as described in FIG. 3 (b) and shows a state in which the display 1100 is tilted with respect to the base 1200 through the connection portion 1300. That is, Figure 3(b) shows the display 1100 tilted forward.
  • the sensor 1210 is provided on the front of the base 1200.
  • the sensor 1210 is provided in a state protruding from the base 1200, as shown in (a) of FIG. 4.
  • the sensor 1210 secures a small amount of light received even though the display 1100 is tilted toward the front.
  • the sensor 1210 is required to protrude significantly from the base 1200. Due to the protrusion of the sensor 1210, the display device 1000 has a problem with its appearance. Additionally, even when the sensor 1210 protrudes, there is a problem in that ambient light can hardly be sensed when the display 1100 is tilted at a preset angle, for example, 55 degrees or more.
  • the senor 1210 is provided on the base 1200 without protruding from the base 1200. In this case, the sensor 1210 cannot secure the amount of light received as the display 1100 is tilted. In other words, the sensor 1210 has a problem of not securing a sufficient amount of light.
  • FIG. 4(b) is an example described in FIG. 3(b) and shows the display 1100 in a folded state with respect to the base 1200 through the connection portion 1300.
  • the senor 1210 is provided in a state protruding from the base 1200, as shown in (b) of FIG. 4.
  • the appearance is not good or a sufficient amount of light cannot be secured, as explained in (a) of FIG. 4.
  • the senor 1210 is provided in a state that does not protrude from the base 1200, unlike shown in (b) of FIG. 4. However, in this case, as the sensor 1210 is directed downward, a sufficient amount of light is not secured.
  • the display 1100 can change the state with respect to the base 1200, there is a problem that at least a part of the sensor 1210 is blocked from light and a sufficient amount of light cannot be secured. For example, if the sensor 1210 of the display device 1000 does not protrude, the sensor 1210 is obscured by the display 1100 as the display 1100 is tilted or rotated, and a sufficient amount of light is not secured. Alternatively, as the display 1100 is tilted or rotated, the sensor 1210 secures too much light reception. Additionally, when the sensor 1210 of the display device 1000 protrudes from the base 1200, the display device 1000 has problems with poor appearance and security of the amount of light received. That is, the display device 1000 outputs low luminance in response to the less secured amount of light received, even though the amount of surrounding light remains the same.
  • a display device 1000 that maintains the function of the sensor 1210 even when the display 1100 changes state with respect to the base 1200 is required. Accordingly, hereinafter, the display device 1000, which has an attractive appearance and outputs appropriate luminance because the sensor 1210 does not protrude from the base 1200, will be described.
  • Figure 5 is a block diagram explaining each configuration of a display device according to embodiments.
  • the display device 1000 includes a display 1100, a base 1200 supporting the display 1100, and a connection portion 1300 connecting the display 1100 and the base 1200.
  • the display 1100 includes a display panel including a plurality of pixels and a bezel, as described in FIG. 1 .
  • the display 1100 outputs an image through a display panel.
  • the image includes a still image including a static image and a video including a dynamic image. Additionally, images include all dimensions: 2D, 3D, and still or moving images.
  • the display 1100 outputs this image with appropriate brightness.
  • the display 1100 fixes the display panel through a bezel.
  • the bezel is formed by surrounding the edge of the display panel. Additionally, the bezel may be formed to surround all or part of the rear of the display panel that does not output images.
  • the base 1200 supports the display 1100.
  • the base 1200 includes a sensor 1210 (eg, the sensor described in FIG. 1 ) and a processor 1260 (eg, the control unit described in FIG. 1 ).
  • the display device 1000 includes a status sensor 1220, a communication unit 1230 (e.g., the broadcast receiver described in FIG. 1), an auxiliary sensor 1240, and a memory 1250 (e.g., the broadcast receiver described in FIG. 1). It may further include at least one of the storage unit).
  • the sensor 1210 senses the amount of light irradiated toward the sensor 1210.
  • Sensor 1210 is, for example, an illumination sensor.
  • the sensor 1210 is built into the base 1200.
  • the sensor 1210 is provided in a state that does not protrude from the base 1200.
  • the sensor 1210 is placed in the center of the front of the base 1200. Through this, the sensor 1210 senses the average amount of light surrounding the display device 1000.
  • the sensor 1210 may be placed at the center of the front of the base 1200 at a predetermined angle with the ground, for example, at an angle of 45 degrees or more with the ground.
  • the sensor 1210 may be arranged to face upward at an angle like this.
  • the display device 1000 senses the amount of light input to the sensor 1210 regardless of the state in which the display 1100 and the base 1200 are coupled. For example, even when the base 1200 is completely folded with respect to the display 1100, the sensor 1210 senses the amount of light directed toward the sensor 1210.
  • the sensor 1210 senses light incident on the sensor 1210 according to the test.
  • the display 1100 may further include one or more auxiliary sensors 1140.
  • the auxiliary sensor 1140 senses the amount of ambient light. That is, the auxiliary sensor 1140 assists the function of the sensor 1210.
  • At least one auxiliary sensor 1140 is disposed along the edge of the display panel.
  • at least one auxiliary sensor 1140 is disposed on the bezel.
  • the position of the auxiliary sensor 1140 is not limited to this, and may be positioned so as not to interfere with the image output by the display panel.
  • each auxiliary sensor 1140 is arranged symmetrically with respect to the center of the display panel.
  • each auxiliary sensor 1140 is located at the center of the rightmost side and the center of the leftmost side of the display 1100.
  • each auxiliary sensor 1140 is located at the center of the rightmost side, the center of the uppermost side, the center of the leftmost side, and the lowermost side of the display 1100. It is located in the center.
  • the display device 1000 can enable the sensor 1210 to have a constant amount of light received for the surrounding luminance more accurately.
  • the auxiliary sensor 1140 is built into the bezel. That is, the auxiliary sensor 1140 does not protrude from the display 1100. Through this, the display device 1000 provides an excellent appearance.
  • the state sensor 1220 senses the state (scene) of the display 1100 and the base 1200. At this time, the state (scene) is a combination mode of the display 1100 and the base 1200. For example, the state sensor 1220 senses whether the display 1100 is tilted or rotated with respect to the base 1200, as shown in (b) or (c) of FIG. 3.
  • the communication unit 1230 transmits and receives data with an external device.
  • the auxiliary sensor 1240 senses the amount of ambient light. That is, the auxiliary sensor 1240 assists the function of the sensor 1210.
  • the description of the auxiliary sensor 1240 is the same or similar to that of the auxiliary sensor 1140.
  • the display device 1000 may not include both the auxiliary sensor 1140 and the auxiliary sensor 1240, or may include the auxiliary sensor 1140 and/or the auxiliary sensor 1240.
  • the auxiliary sensor 1140 and/or auxiliary sensor 1240 may operate only when the function of the sensor 1210 is degraded.
  • the auxiliary sensor 1140 and/or the auxiliary sensor 1240 may operate when the function of the sensor 1210 is performed below a preset value.
  • the memory 1250 stores data necessary for driving the display device 1000.
  • the memory 1250 stores algorithms or instructions performed by the processor 1260.
  • the memory 1250 stores an algorithm for compensating data of the sensor 1210 and data required therefor.
  • the data required for data compensation includes a gain table for each state (scene).
  • the gain table shows the relationship between the brightness of the display 1100 and surrounding luminance according to each state (scene) in a graph or table.
  • the processor 1260 controls all or part of the components included in the display device 1000.
  • the processor 1260 calculates the gain required for the sensor 1210 based on the amount of light secured through the sensor 1210.
  • the processor 1260 calculates the gain using data stored in the memory 1250.
  • Data stored in the memory 1250 is, for example, a gain table for each state. At this time, the gain table for each state can be received through the communication unit 1230 rather than the memory 1250.
  • the processor 1260 corrects the amount of light received through the sensor 1210 using gain.
  • the processor 1260 allows the sensor 1210 to accurately measure ambient luminance through the corrected amount of light received.
  • the display device 1000 ensures that the sensor 1210 secures a sufficient amount of light despite changes in the states of the display 1100 and the base 1200. Additionally, the display device 1000 senses accurate luminance. Accordingly, the display device 1000 accurately and easily measures power consumption in accordance with the energy regulations described in FIG. 2, for example. Additionally, the display device 1000 controls display brightness by, for example, sensing accurate luminance. Accordingly, the display device 1000 manages energy efficiently.
  • the connection part 1300 connects the display 1100 and the base 1200.
  • the connection unit 1300 allows the display 1100 to be changed with respect to the base 1200.
  • the connector 1300 allows the display 1100 to tilt or rotate with respect to the base 1200.
  • the display 1100 can change its set state with the base 1200 through the connection part 1300.
  • the set state is a state in which the display 1100 and the base 1200 are combined. For example, when the display 1100 is tilted with respect to the base 1200, it may be said that the 'set state has changed'.
  • connection portion 1300 includes a hinge portion 1310 and/or a rotation connection portion 1320.
  • the hinge unit 1310 connects the display 1100 and the base 1200 so that the angle of the base 1200 can be adjusted in the front-back direction with respect to the display 1100.
  • the front-back direction is the y-direction in FIG. 2.
  • the display 1100 can be tilted with respect to the base 1200.
  • the base 1200 may be completely folded relative to the display 1100.
  • the stand is fixed to one side of the base. At this time, the stand is combined with the base and fixed to one side of the base. Alternatively, the stand is fixed to the base by a force supporting one side of the base. The stand is fixed to the bottom of the base. At this time, the lower surface is a surface facing the -z direction in the z direction described in FIG. 2.
  • the stand extends from the base and supports the base relative to the ground. At this time, the stand supports the base while maintaining a certain distance from the ground. Meanwhile, the length of the stand is adjustable. Through this, the display device can be placed at a certain height from the ground even when there is no separate display device holder. At this time, the display device can be placed at a desired height from the ground by adjusting the height of the stand.
  • the display device 1000 can output the same luminance even if the amount of light received by the sensor 1210 decreases for the same amount of light.
  • Figure 6 is a flowchart explaining a method of controlling a display device according to embodiments.
  • the method of controlling a display device includes a step (s101) of sensing the amount of light being irradiated.
  • the sensor 1210 senses the amount of light irradiated toward the sensor 1210. At this time, the amount of light irradiated toward the sensor 1210 is, for example, the projection beam described in FIG. 2. Alternatively, the amount of light irradiated through the sensor 1210 is the brightness around the display device.
  • the method of controlling a display device includes calculating a gain for the amount of light received by the sensor based on the amount of sensed light (s102).
  • the processor 1260 calculates a gain for the amount of received light.
  • the processor 1260 determines that there is a change between the received light amount before a preset time and the current received light amount, it calculates a gain for the current received light amount.
  • the processor 1260 calculates the gain using the reference light quantity.
  • the reference light amount is the amount of light received by the sensor 1210 when the display 1100 is at a preset angle with respect to the base 1200.
  • the reference light amount is the received light amount in the landscape mode described in FIG. 3.
  • the reference light amount is the received light amount in the stand state shown in FIG. 7.
  • it is the amount of light received when the display 1100 is tilted 90 degrees with respect to the base 1200.
  • the processor 1260 determines the received light quantity when the sensor 1210 has sufficient light reception quantity to measure the surrounding luminance as the standard light quantity.
  • the processor 1260 calculates the gain based on the reference light amount and the difference between the reference light amount and the current sensed light amount.
  • the processor 1260 calculates the gain when it determines that the current sensed light amount is outside a preset range from the reference light amount. Meanwhile, if the processor 1260 determines that the current amount of light sensed is equal to or within a preset range from the reference light amount, it determines that there is no change in the amount of light received by the sensor 1210. In this case, the gain is not calculated.
  • the method of controlling a display device includes a step (s103) of correcting the amount of light received by the sensor by applying a gain.
  • the processor 1260 applies gain to correct the amount of light received by the sensor 1210. For example, the processor 1260 corrects the amount of received light by correcting the master luminance curve for the gain table for each state. Or, for example, the processor 1260 corrects the amount of light received by the sensor 1210 by compensating for the amount of light received by the sensor 1210 by the calculated gain.
  • the method of controlling a display device includes controlling the brightness of the display according to the corrected amount of light received (s104).
  • the processor 1260 controls the brightness of the display based on the corrected amount of light received.
  • the display device 1000 controls the brightness of the display so that the brightness of the display is proportional to the brightness of the surrounding area.
  • the display device 1000 when the amount of ambient light is the same, the display device 1000 according to embodiments outputs the same luminance even if the amount of light received by the sensor 1260 changes according to a change in the state of the display device.
  • the light L emitted from the light source 2000 has the same amount of light.
  • the amount of light emitted from the light source 2000 does not change or changes within a meaningless range that does not affect luminance control.
  • Figure 7 is a diagram illustrating an example of correcting the amount of light received according to embodiments.
  • FIG. 7 illustrates an example of tilting the display 1100 with respect to the base 1200 in the display device 1000 according to embodiments, and shows a sensor light received amount-surrounding luminance graph accordingly.
  • the solid line represents the value of the amount of light actually received by the sensor 1210
  • the dotted line represents the value of the corrected amount of light received.
  • FIG. 7 shows a stand state in which the display 1100 is perpendicular to the base 1200.
  • (a) in FIG. 7 is a state in which light irradiated toward the sensor 1210 is sufficiently received, for example, in a state in which the standard light amount described in FIG. 6 is received.
  • Figure 7 (b) shows the base 1200 in a folded state with respect to the display 1100, showing a wall-mounted state.
  • (b) in FIG. 7 is a state in which the light irradiated toward the sensor 1210 is not sufficiently received, and the standard amount of light described in FIG. 6 is not received.
  • the position of the sensor 1210 moved along with the change in the state of the display device 1000. That is, the sensor 1210 secures a smaller amount of light received than in the stand state of FIG. 7(a).
  • the processor 1260 calculates the gain to correct the amount of light received by the sensor 1210.
  • the processor 1260 applies gain to correct the amount of light received by the sensor 1210.
  • the processor 1260 increases the amount of light received by the sensor 1210 by applying a gain.
  • the processor 1260 controls the brightness of the display 1100 based on the corrected amount of light received.
  • Figure 8 is a diagram illustrating an example of correcting the amount of light received according to embodiments.
  • FIG. 8 illustrates an example of rotating the display 1100 with respect to the base 1200 in the display device 1000 according to embodiments and a graph of the resulting sensor light reception amount and ambient luminance.
  • the solid line represents the value of the amount of light actually received by the sensor 1210
  • the dotted line represents the value of the corrected amount of light received.
  • FIG. 8 explains an example in which the sensor 1210 is disposed on the display 1100, unlike what is described in FIGS. 1 to 7.
  • Figure 8(a) shows the landscape mode state (see Figure 3).
  • (a) in FIG. 8 is a state in which light irradiated toward the sensor 1210 is sufficiently received, for example, in a state in which the standard light amount described in FIG. 6 is received.
  • Figure 8(b) shows the portrait mode state (see Figure 3).
  • (b) in FIG. 8 is a state in which excessive light irradiated toward the sensor 1210 is received, which is a state in which light is received in excess of the standard light amount described in FIG. 6.
  • the processor 1260 calculates the gain to correct the amount of light received by the sensor 1210.
  • the processor 1260 applies gain to correct the amount of light received by the sensor 1210.
  • the processor 1260 applies a gain to reduce the amount of light received by the sensor 1260.
  • the processor 1260 controls the brightness of the display 1100 based on the corrected amount of light received.
  • the display device 1000 may display the display 1100 even when the sensor 1210 is interrupted from receiving light by the display 1100 or the amount of light received changes due to a positional movement of the sensor 1210. ) outputs the same luminance. Through this, the display device 1000 outputs appropriate brightness corresponding to the surrounding luminance.
  • FIG. 9 is a flowchart explaining a method of controlling a display device according to embodiments.
  • the method of controlling a display device includes a step (s201) of sensing the amount of light being irradiated.
  • the description of s201 is the same or similar to the description of s101 in FIG. 6.
  • the method of controlling a display device includes determining whether there is a change in the amount of light irradiated (s202).
  • the processor 1260 determines whether there is a change in the amount of light irradiated toward the sensor 1210 from the amount of light sensed through the sensor 1210 at preset times. At this time, if the amount of light irradiated before the preset time differs from the amount of light currently irradiated by more than a threshold value, the processor 1260 determines that the amount of light has changed. On the other hand, if the change in light quantity is less than the threshold value, the processor 1260 determines that the amount of irradiated light has not changed. At this time, if the processor 1260 determines that there is no change in the amount of light, the display 1100 outputs the same luminance as before the preset time.
  • the method of controlling a display device includes a step (s203) of sensing a scene when it is determined that there is a change in the amount of light irradiated.
  • the state sensor 1220 senses the state of the display device 1000. As described above, the scene is a combination mode of the display 1100 and the base 1200.
  • the method of controlling a display device includes determining whether there is a change in state (s204).
  • the processor 1260 determines that the state of the display device 1000 has changed when the coupling mode of the display 1100 and the base 1200 is different from before. For example, the processor 1260 1 second ago, the display 1100 and the base 1200 were in a stand state (see FIG. 7), but the display 1100 and the base 1200 are currently in a wall-mounted state. In the case (see FIG. 7), it is determined that the state of the display device 1000 has changed. At this time, before is before the preset time described in s202.
  • the control method of the display device includes calculating a gain and correcting the amount of light received based on it when it is determined that there is a change in the state (s205).
  • the processor 1260 determines that there is a change in the state, it corresponds to a case where there is no change in the amount of ambient light, but the amount of light irradiated changes due to a change in the state of the display device 1000. Alternatively, this corresponds to a case where the amount of ambient light changes and the state of the display device 1000 also changes and the amount of irradiated light changes.
  • the processor 1260 calculates a gain to compensate for the change in the amount of light received by the sensor 1210.
  • the processor 1260 applies the calculated gain to the amount of light received by the sensor 1210 to compensate for the amount of light received by the sensor 1210.
  • the detailed description of s205 is the same or similar to s102 to s103 in FIG. 6.
  • the method of controlling a display device includes controlling the brightness of the display (s206).
  • the processor 1260 controls the brightness of the display 1100 based on the amount of light received corrected according to compensation.
  • the detailed description of s205 is the same or similar to s104 in FIG. 6.
  • the display device 1000 may output the same luminance as before the display 1100 senses the change in light amount when there is no change in the amount of ambient light, but the state of the display device 1000 changes.
  • the display device and the control method of the display device provide a method that satisfies energy regulations while maintaining an attractive appearance. Additionally, in the embodiments, even when the amount of ambient light does not change but the amount of received light decreases due to a change in the state (scene) of the display device, the same luminance is output by correcting the amount of received light. Additionally, in embodiments, when the actual amount of surrounding light changes, the luminance is controlled based on the changed amount of received light.
  • the display device and the control method of the display device according to the embodiments have industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

Selon des modes de réalisation, l'invention concerne un dispositif d'affichage comprenant : un afficheur ; une base supportant l'afficheur et comprenant un capteur pour détecter la quantité de lumière émise ; et un processeur pour corriger, sur la base de la quantité de lumière détectée, la quantité de lumière reçue par le capteur.
PCT/KR2022/009425 2022-06-30 2022-06-30 Dispositif d'affichage et procédé de commande de dispositif d'affichage WO2024005235A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2022/009425 WO2024005235A1 (fr) 2022-06-30 2022-06-30 Dispositif d'affichage et procédé de commande de dispositif d'affichage

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Application Number Priority Date Filing Date Title
PCT/KR2022/009425 WO2024005235A1 (fr) 2022-06-30 2022-06-30 Dispositif d'affichage et procédé de commande de dispositif d'affichage

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WO2024005235A1 true WO2024005235A1 (fr) 2024-01-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072163A (ko) * 2009-12-22 2011-06-29 성균관대학교산학협력단 컴퓨터용 모니터의 자동 회전장치
KR20140147253A (ko) * 2013-06-19 2014-12-30 엘지전자 주식회사 폴더블 디스플레이 디바이스 및 제어 방법
KR20150080273A (ko) * 2013-12-31 2015-07-09 주식회사 루멘스 디스플레이 장치 및 디스플레이 명령 입력 장치
KR20190000765A (ko) * 2017-06-23 2019-01-03 삼성전자주식회사 디스플레이 장치 및 디스플레이 방법
KR20210033141A (ko) * 2019-09-18 2021-03-26 삼성전자주식회사 디스플레이장치 및 그의 제어방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072163A (ko) * 2009-12-22 2011-06-29 성균관대학교산학협력단 컴퓨터용 모니터의 자동 회전장치
KR20140147253A (ko) * 2013-06-19 2014-12-30 엘지전자 주식회사 폴더블 디스플레이 디바이스 및 제어 방법
KR20150080273A (ko) * 2013-12-31 2015-07-09 주식회사 루멘스 디스플레이 장치 및 디스플레이 명령 입력 장치
KR20190000765A (ko) * 2017-06-23 2019-01-03 삼성전자주식회사 디스플레이 장치 및 디스플레이 방법
KR20210033141A (ko) * 2019-09-18 2021-03-26 삼성전자주식회사 디스플레이장치 및 그의 제어방법

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