WO2024139366A1 - Dispositif d'affichage, dispositif terminal et procédé de traitement d'affichage - Google Patents

Dispositif d'affichage, dispositif terminal et procédé de traitement d'affichage Download PDF

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Publication number
WO2024139366A1
WO2024139366A1 PCT/CN2023/117044 CN2023117044W WO2024139366A1 WO 2024139366 A1 WO2024139366 A1 WO 2024139366A1 CN 2023117044 W CN2023117044 W CN 2023117044W WO 2024139366 A1 WO2024139366 A1 WO 2024139366A1
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WO
WIPO (PCT)
Prior art keywords
display
frequency
display device
screen parameters
function
Prior art date
Application number
PCT/CN2023/117044
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English (en)
Chinese (zh)
Inventor
于新磊
何营昊
卢平光
王昊
李春超
Original Assignee
海信视像科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202211700387.2A external-priority patent/CN116092445A/zh
Priority claimed from CN202211738819.9A external-priority patent/CN116229863A/zh
Application filed by 海信视像科技股份有限公司 filed Critical 海信视像科技股份有限公司
Publication of WO2024139366A1 publication Critical patent/WO2024139366A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Definitions

  • display devices can achieve higher display resolution and variable refresh rate, thus bringing a better viewing experience.
  • Display devices can only display clear and smooth images when the refresh signal and screen parameters match. However, the display parameters of current display devices cannot be converted to each other, which means that display devices cannot support refresh signals of multiple frequencies at the same time. Even if the display device supports variable refresh rate function, it only supports variable refresh rate signals at certain resolutions.
  • An embodiment of the present application provides a display device, comprising: a display; a communicator, configured to receive a first signal, the refresh frequency of the first signal being a first frequency; a memory, configured to store computer instructions and/or data associated with the display; a processor, coupled to the display, the communicator and the memory, and configured to execute the computer instructions so that the display device: when the first frequency is different from the second frequency, adjusts the screen parameters of the display to the screen parameters corresponding to the first frequency according to the switch state of a variable refresh rate function and/or the switch state of a hardware super-resolution function; the second frequency is the frequency corresponding to the screen parameters of the display; and controls the display to display image data corresponding to the first signal according to the screen parameters corresponding to the first frequency.
  • An embodiment of the present application also provides a display processing method, including: receiving a first signal, the refresh frequency of the first signal being a first frequency; when the first frequency is different from a second frequency, adjusting the screen parameters of the display to screen parameters corresponding to the first frequency according to the switch state of a variable refresh rate function and/or the switch state of a hardware super-resolution function; the second frequency is the frequency corresponding to the screen parameters of the display; and controlling the display to display image data corresponding to the first signal according to the screen parameters corresponding to the first frequency.
  • An embodiment of the present application also provides a display device, comprising: a display; a first processor, configured to: in response to receiving a display information configuration instruction, configure the display information of the display device, wherein the display information includes the resolution of the display device supporting a variable refresh rate Vrr; in response to completion of the display information configuration of the display device, send a display information configuration completion signal to the terminal device, so that the terminal device reads the configured display information and sends an image signal corresponding to the display information; and control the display to display the image corresponding to the image signal according to the display information.
  • a display device comprising: a display; a first processor, configured to: in response to receiving a display information configuration instruction, configure the display information of the display device, wherein the display information includes the resolution of the display device supporting a variable refresh rate Vrr; in response to completion of the display information configuration of the display device, send a display information configuration completion signal to the terminal device, so that the terminal device reads the configured display information and sends an image signal corresponding to the display information
  • An embodiment of the present application also provides a terminal device, comprising: a communication interface; a second processor, configured to: in response to receiving a display information configuration completion signal sent by the display device, read the configured display information from the display device, wherein the display information includes a resolution of a variable refresh rate supported by the display device; obtain an image signal corresponding to the display information; and send the image signal to the display device via the communication interface, so that the display device displays an image corresponding to the image signal according to the display information.
  • the display device 200 may not use the above-mentioned smart device 300 or control device 100 to receive instructions, but may receive instructions through Receive user control through touch or gesture.
  • the middleware of the display device After the middleware of the display device sends an instruction to TCON to turn on the HSR function of the display device, and TCON turns on the HSR function of the display device, the middleware of the display device can send an instruction to rewrite the VGH voltage to the back-end power management unit (Power Management Unit, PMU) chip of the display device, so that the back-end PMU chip can optimize the VGH voltage, thereby avoiding problems such as dark lines that appear when the display device adjusts the display parameters to the display parameters corresponding to the high refresh signal of 240Hz.
  • PMU Power Management Unit
  • S507 Send an adjustment notification to the application window to adjust the size of the window.
  • the display device's middleware can first read the state of the HSR function in the database to determine whether the HSR function is on or off.
  • S606 Send a HSR function disable instruction to TCON.
  • the middleware of the display device can send an adjustment notification to the application window of the display device (ie, Applywindow), and the adjustment notification can be used to indicate the size of the adjustment window.
  • the middleware of the display device may send an adjustment notification to the application window of the display device. After the size of the window is adjusted, the middleware of the display device may turn off the blackout function.
  • the middleware of the display device After the middleware of the display device turns off the blackout function, the middleware of the display device can set the gear corresponding to the regional dimming function.
  • the display processing method includes:
  • the display device may turn off the regional dimming function before adjusting display parameters.
  • the display device Before adjusting the display parameters from 240Hz to the display parameters corresponding to the high refresh signal of 144Hz, the display device can turn on the blackout function to ensure that garbage is not displayed during the process of adjusting the display parameters.
  • S703 Send a HSR function disable instruction to TCON.
  • the middleware of the display device can send a HSR function turn-off instruction to TCON, instructing TCON to turn off the HSR function of the display device.
  • TCON receives the HSR function turn-off instruction sent by the middleware of the display device, TCON can turn off the HSR function of the display device.
  • the middleware of the display device sends an instruction to turn off the HSR function to TCON. After TCON turns off the HSR function of the display device, the middleware of the display device can send an instruction to rewrite the VGH voltage to the back-end PMU chip of the display device, so that the back-end PMU chip can optimize the VGH voltage.
  • the middleware of the display device sends a VGH voltage rewrite instruction to the back-end PMU chip. After the back-end PMU chip optimizes the VGH voltage, the middleware of the display device can pull the HPD again and re-identify the 144Hz high refresh signal of the HDMI input.
  • the middleware of the display device can send a switching notification to the SOC of the display device, instructing to switch the screen parameters to the screen parameters corresponding to 144Hz.
  • the SOC of the display device receives the switching notification sent by the middleware of the display device, the SOC can switch the display parameters to the screen parameters corresponding to the high refresh signal of 144Hz.
  • S706 Send an adjustment notification to the application window to adjust the size of the window.
  • the middleware of the display device can send an adjustment notification to the application window of the display device (ie, Applywindow), and the adjustment notification can be used to indicate the size of the adjustment window.
  • the middleware of the display device may send an adjustment notification to the application window of the display device. After the size of the window is adjusted, the middleware of the display device may turn off the blackout function.
  • the middleware of the display device After the middleware of the display device turns off the blackout function, the middleware of the display device can set the gear corresponding to the regional dimming function.
  • the display processing method includes:
  • the display processing method includes:
  • S810 determine whether the tangential direction is 120Hz or 144Hz. When the tangential direction is 120Hz, execute S811; when the tangential direction is 144Hz, execute S814;
  • S818, determine whether the tangential direction is 120Hz or 144Hz. When the tangential direction is 120Hz, execute S819; when the tangential direction is 144Hz, execute S820;
  • the display device can switch the display screen parameters corresponding to the 144 Hz high refresh signal to the display screen parameters corresponding to the 120 Hz high refresh signal, so that the display device can display the content corresponding to the 120 Hz high refresh signal.
  • the display device can switch the display screen parameters corresponding to the 144 Hz high refresh signal to the display screen parameters corresponding to the 120 Hz high refresh signal, so that the display device can display the content corresponding to the 120 Hz high refresh signal.
  • the display processing method may include:
  • the display device may receive a first signal, and a refresh frequency of the first signal may be a first frequency, which may be 120 Hz, 144 Hz, or 240 Hz.
  • the display device may determine whether the first frequency and the second frequency are the same.
  • the second frequency may be a frequency corresponding to the current screen parameter of the display.
  • the display device 16 may include: a receiving module 1601 , an adjustment module 1602 , a control module 1603 , and the like.
  • the first frequency is 240 Hz
  • the second frequency is 144 Hz
  • the adjustment module 1602 can be specifically used to: when the switch state of the hardware super-resolution function is on, adjust the screen parameters of the display to the screen parameters corresponding to the third frequency, and then adjust the screen parameters of the display from the screen parameters corresponding to the third frequency to the screen parameters corresponding to the first frequency; wherein the third frequency is 120 Hz; or, when the switch state of the variable refresh rate function is on, turn off the variable refresh rate function, turn on the hardware super-resolution function, adjust the screen parameters of the display to the screen parameters corresponding to the third frequency, and then adjust the screen parameters of the display from the screen parameters corresponding to the third frequency to the screen parameters corresponding to the first frequency; or, when the switch state of the variable refresh rate function and the switch state of the hardware super-resolution function are both off, turn on the hardware super-resolution function, adjust the screen parameters of the display to the screen parameters corresponding to the third frequency, and then adjust the screen parameters of the display from
  • the first frequency is 144 Hz
  • the second frequency is 120 Hz
  • the adjustment module 1602 can be specifically used to: The switch state of the refresh rate function is on, and the switch state of the hardware super-resolution function is off, and the screen parameters of the display are adjusted to the screen parameters corresponding to the first frequency.
  • An embodiment of the present application also provides a computer program product, including computer instructions for execution by the display device as described above.
  • the display device can implement the display processing method as described above.
  • a first processor of a display device configures display information of the display device; wherein the display information includes a resolution and a variable refresh rate Vrr supported by the display device.
  • the display information configuration instruction refers to an instruction for instructing the first processor to configure the display information of the display device according to the capability of the display device itself.
  • display information is stored in an extended display identification data (EDID) file
  • configuring the display information of the display device may include: modifying the parameters related to the resolution and/or the parameters related to the variable refresh rate in the EDID file, and the modified parameters related to the resolution and the parameters related to the variable refresh rate are used to declare at which resolutions the display device can support the variable refresh rate signal.
  • the resolution-related parameters retained in the EDID file refer to the resolution that can support the variable refresh rate signal.
  • the resolution-related parameters retained in the EDID file are 2K, 4K, and 5K resolutions, that is, the display device declares that it supports variable refresh rate signals at resolutions of 2K, 4K, and 5K.
  • the second display information configuration instruction in response to downloading the EDID file and receiving a second display information configuration instruction, is used to instruct the display device to configure reserved unused registers in the EDID file.
  • configuring the display information of the display device may include: pre-storing in an unused register reserved in the EDID file the resolutions at which the display device can support variable refresh rate signals. Specifically, one or more resolutions are pre-stored in the register, and the terminal device is informed through the communication protocol between the display device and the terminal device that the resolution stored in the register supports variable refresh rate signals. For example: storing 2K, 4K, and 5K resolutions in the register means that the display device declares that it supports variable refresh rate signals at resolutions of 2K, 4K, and 5K.
  • the display information configuration completion signal is used to indicate to the terminal device that the display information of the display device has been configured and the display information can be read from the display device.
  • responding to the completion of the display information configuration of the display device may include: responding to a triggering operation of a configuration completion control by a user, determining that the display information configuration of the display device is completed.
  • the display information configuration of the display device being completed in response to the display information configuration of the display device being completed, it may include: in response to the target parameter configuration in the display device being completed, determining that the display information configuration of the display device is completed.
  • the target parameter configuration is completed including: the resolution has been fully added to the register, or the parameters related to the resolution have been deleted or updated, or the parameters related to the variable refresh rate have been deleted or updated. new.
  • the display information configuration completion signal can be represented by a hot plug (Hotplug) pin in the HDMI interface.
  • Hotplug hot plug
  • the hot plug flag is set to 0, and after the display device has completed the display information configuration, the hot plug flag is set to 1.
  • the second processor of the terminal device receives a display information configuration completion signal, including: the second processor of the terminal device detects hot plug identification position 1, indicating that the display information configuration completion signal is received, and reads the configured display information from the display device.
  • the second processor of the terminal device receives a display information configuration completion signal, including: the second processor of the terminal device detects the hot plug identification position 0, which indicates that the display information configuration completion signal has not been received, that is, the terminal device knows that the display information of the display device has not been configured. At this time, the terminal device does not perform any operation until the hot plug identification position 1 is detected, and the configured display information is read from the display device.
  • reading the configured display information from the display device includes: the terminal device reads the EDID file of the display device, and obtains the configured display information from the EDID file. Specifically, reading from the EDID file which resolutions support variable refresh rate signals.
  • the terminal device when the terminal device reads the EDID file from the display device, it will obtain all the display information of the display device from the EDID file, such as: the type of video display signal (video signal format) that the display can receive; display size; maximum horizontal and vertical image size; optimal display mode support; video signal format detail data; display operating frequency range limit data, etc.
  • the reading method or configuration method of the above display information is consistent with the prior art, and the reading method or configuration method of the above information is not limited in the embodiments of the present application.
  • the second processor of the terminal device obtains an image signal corresponding to the display information and sends it to the display device.
  • the display information includes which resolutions support variable refresh rate signals and whether the variable refresh rate function is enabled on the display device.
  • the terminal device obtains an image signal at a target resolution to the display device, wherein the target resolution refers to the maximum resolution that the display device can process and/or the maximum image resolution that the terminal device has.
  • the maximum resolution that the display device can process is consistent with the maximum image resolution that the terminal device has. For example, if the maximum resolution that the display device can process is 8K, and the terminal device holds an 8K image signal, the terminal device sends the 8K image signal to the display device.
  • the maximum resolution that the display device can process is inconsistent with the maximum image resolution of the terminal device, the smaller of the two maximum resolutions is used as the target resolution. For example: if the maximum resolution that the display device can process is 6K, and the terminal device holds an 8K image signal, the terminal device sends the 6K image signal to the display device. For another example: if the maximum resolution that the display device can process is 8K, and the terminal device holds a 5K image signal, the terminal device sends the 5K image signal to the display device.
  • the terminal device reads the resolution of the display device that supports the variable refresh rate from the display information.
  • the resolutions of the display device that support variable refresh rates include: 4K, 5K, 6K; the resolution that does not support variable refresh rates is 8K.
  • the terminal device selects a Vrr signal at one of the resolutions that supports variable refresh rates as an image signal and sends it to the display device. Selecting one of the resolutions can be selecting any one of the resolutions, or it can be selecting the maximum resolution among the resolutions that support variable refresh rates. It can also be that the display device specifies one of the resolutions. For example: the terminal device selects a Vrr signal at 6K as a picture signal and sends it to the display device.
  • the acquired image signal is sent to a display device, and the display device displays the received image information according to the display information. It should be noted that the manner in which the first processor controls the display to display an image is no longer specifically limited in the embodiments of the present application.
  • the embodiment of the present application sets a resolution in a display device that supports a variable refresh rate signal, and sends the set display information to a terminal device, so that the terminal device can obtain the capabilities of the display device, and then the terminal device can send an image signal that meets the capabilities of the display device, thereby avoiding problems such as jitter, screen distortion, and flashing caused by the display device's inability to process image signals, thereby improving the user experience.
  • a first processor of a display device obtains a first Vrr switch state corresponding to the operation.
  • the Vrr switch state includes a Vrr on state and a Vrr off state.
  • the first Vrr switch state refers to the Vrr switch state selected by the user. Specifically, in response to the user triggering operation of the on control in the Vrr switch control 71, it is determined that the first Vrr switch state corresponding to the operation is the on state; in response to the user triggering operation of the off control in the Vrr switch control 71, it is determined that the first Vrr switch state corresponding to the operation is the off state.
  • Vrr switch when the Vrr switch is in the on state, a preset aperture is displayed around the Vrr switch control, and when the Vrr switch is in the off state, the preset aperture around the Vrr switch control is no longer displayed to distinguish the state of the Vrr switch.
  • the first Vrr switch state is consistent with the pre-stored second Vrr switch state. Specifically, if the first Vrr switch state is an on state and the second Vrr switch state is an on state, it is determined that the first Vrr switch state is consistent with the pre-stored second Vrr switch state. Alternatively, if the first Vrr switch state is an off state and the second Vrr switch state is an off state, it is determined that the first Vrr switch state is consistent with the pre-stored second Vrr switch state.
  • the display device needs to modify or configure the display information according to its own processing capabilities so that the terminal device can know the processing capabilities of the display device.
  • the first Vrr switch state can be determined by the user operation in S1901.
  • the user operation in S1901. please refer to the description in the above steps, which will not be repeated here.
  • step S1906 is executed. If the first Vrr switch state is an off state, then step S1907 is executed.
  • the display device's support for resolution is declared in the VDB (Video Data Block) field, which declares the resolution format supported by the display device.
  • the VDB field is in the EDID file, where there are 256 bytes in the EDID file, of which the first 128 bytes involve the VDB field. And the first 4 bytes of the last 128 bytes are fixed content.
  • the first 128 bytes and the first 4 bytes of the last 128 bytes are not processed, as shown in the following table:
  • VDB Video Data Block
  • the terminal device believes that the display device will support Vrr signals of all resolutions under VDB, but in practice, the display device may not support Vrr signals at certain resolutions. For example, if the display device supports 8K signals but not Vrr signals, it will be contradictory. If the display device declares support for 8K signals in VDB, if it declares support for Vrr signals in HF-VSDB, the terminal device may send Vrr signals after the display device selects the image signal at 8K resolution. However, due to the limitation of its capabilities, the display device cannot process Vrr signals at 8K resolution, so the display device may experience abnormalities such as screen flickering and screen distortion. If the Vrr signal is not declared in HF-VSDB, the terminal device will believe that the resolution of the display device does not support Vrr signals.
  • an extended display identification data EDID file is read; a video data block VDB field is searched in the EDID file; after finding the VDB field, a resolution corresponding to the VDB field is obtained; a determination is made as to whether the resolution includes a target resolution; if the target resolution is included, the number of bytes corresponding to the target resolution parameter is set to 0 to obtain the configured display information.
  • the data block field starts from byte 133. Therefore, start traversing from byte 133. Determine the specific value of the 5th, 6th, and 7th bits of the current byte (bit5, bit6, bit7, the upper 3 bits shown in the table above). Determine whether the specific value is equal to 2.
  • the Y420VDB field determines the 8K resolution bit in the same manner as VDB, except that when the specific value of the upper 3 bits of the current byte is 7, the byte is the Y420VDB field.
  • the first Vrr switch state is in the off state, it indicates that the display device has turned off the Vrr signal processing function.
  • the display device can support image signals at any resolution. Since the display device has turned off the Vrr signal processing function, the display device needs to declare that it does not support Vrr signal processing capabilities. At this time, the HF-VSDB field's statement about supporting Vrr signals is deleted. That is, the terminal device will think that the display device does not support Vrr signals, so it will not send Vrr signals, thereby solving the problem that the display device cannot process Vrr signals at the target resolution, resulting in abnormalities such as flickering screen and flowery screen.
  • traverse from the 133rd byte in the EDID file traverse one bit at a time, and find the position of the HF-VSDB field.
  • the method of querying the position of the HF-VSDB field is similar to the method of searching the position of the VDB field provided in the above embodiment.
  • the first processor of the display device sends a display information configuration completion signal to the terminal device.
  • the first processor of the display device controls the display to display an image corresponding to the image signal according to the display information.
  • the second display information configuration instruction is received, which may be after the EDID file is downloaded.
  • the preset identification bit in the EDID file is set.
  • the preset flag when all resolutions of the display device support variable refresh rates, the preset flag is set to 1; when some resolutions of the display device support variable refresh rates, the preset flag is set to 0.
  • the preset identification bit refers to a reserved and unused bit in the HDMI protocol.
  • the preset flag is set to 1, that is, after indicating that only some resolutions support the Vrr signal, it is also necessary to specifically indicate which resolutions support the Vrr signal. Therefore, in an embodiment of the present application, one or more resolutions that the display device supports a variable refresh rate are set in the preset register. That is, after the preset flag is set to 1, the resolution stored in the preset register supports the Vrr signal.
  • SCDC Status and Control Data Channel
  • the display device sends a display information configuration completion signal to the terminal device.
  • the EDID file is read from the display device. Specifically, it is determined whether the preset identification bit in the EDID file is 0. When the preset identification bit read is 0, it is determined that all resolutions of the display device support variable refresh rate. Vrr signals at any resolution can be sent without causing the display device to be unable to process.
  • the terminal device reads a resolution supporting a variable refresh rate from a preset memory of the display device.
  • the preset flag when the preset flag is read as 1, it indicates that some resolutions of the display device support variable refresh rate. At this time, the resolution of the Vrr signal supported by the display device in the SCDC register offset is read. That is, the resolution information in the above table is read to determine which resolutions support the Vrr signal.
  • the Vrr signal at the set resolution is directly sent to the display device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

Un dispositif d'affichage, un dispositif terminal et un procédé de traitement d'affichage, ceux-ci étant capables de réaliser une conversion mutuelle entre les paramètres d'écran d'un dispositif d'affichage, de telle sorte que le dispositif d'affichage peut prendre en charge des signaux de balai élevé de différentes fréquences en même temps, les problèmes de la gigue, des artéfacts, du clignotement d'écran et analogues provoqués par l'incapacité du dispositif d'affichage à traiter des signaux d'image peuvent être évités, et l'expérience utilisateur est améliorée.
PCT/CN2023/117044 2022-12-28 2023-09-05 Dispositif d'affichage, dispositif terminal et procédé de traitement d'affichage WO2024139366A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202211700387.2 2022-12-28
CN202211700387.2A CN116092445A (zh) 2022-12-28 2022-12-28 一种显示方法及显示设备
CN202211738819.9 2022-12-30
CN202211738819.9A CN116229863A (zh) 2022-12-30 2022-12-30 显示设备、终端设备和交互方法

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WO2024139366A1 true WO2024139366A1 (fr) 2024-07-04

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Publication number Priority date Publication date Assignee Title
CN112384971A (zh) * 2018-12-05 2021-02-19 谷歌有限责任公司 变化显示刷新率
CN113077743A (zh) * 2021-03-17 2021-07-06 Tcl华星光电技术有限公司 提高显示面板刷新率的驱动方法、驱动器及显示装置
CN114302219A (zh) * 2021-01-14 2022-04-08 海信视像科技股份有限公司 一种显示设备及可变帧率显示方法
WO2022119098A1 (fr) * 2020-12-01 2022-06-09 삼성전자주식회사 Appareil d'affichage et son procédé d'entraînement
CN114710633A (zh) * 2022-03-24 2022-07-05 海信视像科技股份有限公司 显示设备及视频信号显示方法
CN116092445A (zh) * 2022-12-28 2023-05-09 海信视像科技股份有限公司 一种显示方法及显示设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112384971A (zh) * 2018-12-05 2021-02-19 谷歌有限责任公司 变化显示刷新率
WO2022119098A1 (fr) * 2020-12-01 2022-06-09 삼성전자주식회사 Appareil d'affichage et son procédé d'entraînement
CN114302219A (zh) * 2021-01-14 2022-04-08 海信视像科技股份有限公司 一种显示设备及可变帧率显示方法
CN113077743A (zh) * 2021-03-17 2021-07-06 Tcl华星光电技术有限公司 提高显示面板刷新率的驱动方法、驱动器及显示装置
CN114710633A (zh) * 2022-03-24 2022-07-05 海信视像科技股份有限公司 显示设备及视频信号显示方法
CN116092445A (zh) * 2022-12-28 2023-05-09 海信视像科技股份有限公司 一种显示方法及显示设备

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