Display and control method thereof

Abstract

Disclosed are a display and a control method thereof. The display according to an embodiment of the present invention comprises: an image display unit including a panel; and a processor for processing a received image signal and converting the processed image signal into an input signal of the panel. The processor includes a first frame rate conversion unit for: confirming a frame rate section to which the frame rate of the image signal belongs and a frame rate set to correspond to the frame rate section; generating a control signal including information about a driving mode corresponding to the set frame rate to transmit the control signal to the image display unit; converting the resolution of the image signal so as to match the resolution of the panel; and converting the frame rate of the image signal so as to match the frame rate of the panel, wherein the processor can allow the image signal to bypass the first frame rate conversion unit, and convert the image signal into an input signal to transmit the input signal to the image display unit when the frame rate of the image signal is included in the frame rate section, and the image display unit can output the image signal to the panel by activating a driving mode on the basis of the control signal upon receiving the input signal.

Description

Display and control method thereof

[0001] The disclosed invention relates to a display and a method for controlling the same.

[0002] Displays receive electronic signals and output images, text, videos, and other information on the screen. Displays are used in a variety of electronic devices, including televisions, monitors, and tablets. Recently, gaming monitors have become widespread due to the advancement of the gaming industry.

[0003] Displays receive video signals with various resolutions and refresh rates. The display includes means such as a scaler and a frame rate controller (FRC) that convert the resolution and refresh rate of the video signal to match the resolution and refresh rate of the panel.

[0004] A scaler converts the resolution of a video signal to match the resolution of the panel. A scaler can increase or decrease the number of pixels in a video signal to match the panel's resolution.

[0005] FRC converts the refresh rate (also called frame rate) of the video signal to match the refresh rate of the panel. For example, if the refresh rate of the video signal is 60 Hz and the refresh rate of the panel is 240 Hz, FRC converts the 60 Hz refresh rate of the video signal to the 240 Hz refresh rate of the panel.

[0006] FRC can consume a lot of power because it uses resources such as DDR (Double Data Rate) memory and flash memory during the injection rate conversion process.

[0007] Meanwhile, input latency refers to the time it takes for the user's input, such as a mouse or keyboard, to be reflected on the display. In environments where real-time interaction is crucial, such as gaming, low input latency is required.

[0008] However, adjusting the video signal refresh rate to match the panel's refresh rate through the aforementioned FRC can result in timing delay. Timing delay refers to the time delay that occurs during input or signal processing. In gaming environments where low input latency is crucial, this timing delay may prevent the monitor from supporting the low input latency characteristic of gaming monitors.

[0009] The disclosed invention provides a display capable of efficiently processing a video signal and outputting it to a panel, and a control method thereof.

[0010] According to one aspect of the disclosed invention, a display comprises: an image display unit including a panel; and a processor for processing an input image signal and converting it into an input signal of the panel; wherein the processor identifies a scan rate section to which a scan rate of the image signal belongs and a scan rate set to correspond to the scan rate section, generates a control signal including information on a driving mode corresponding to the set scan rate and transmits the control signal to the image display unit, converts the resolution of the image signal to match the resolution of the panel, and includes a first scan rate converter for converting the scan rate of the image signal to match the scan rate of the panel, wherein, when the scan rate of the image signal is included in the scan rate section, the processor causes the image signal to bypass the first scan rate converter, converts the image signal into the input signal, and transmits the converted image signal to the image display unit, and when the image display unit receives the input signal, drives the driving mode based on the control signal to output the image signal to the panel.

[0011] The processor may, when the injection rate of the image signal is not included in the injection rate section, convert the resolution of the image signal to match the resolution of the panel, and then convert the injection rate of the image signal to match the injection rate of the panel by the first injection rate conversion unit.

[0012] The above image display unit may include a second scan rate conversion unit that converts the scan rate of the image signal included in the input signal to a scan rate set to correspond to the scan rate section to which the scan rate of the image signal belongs, when the scan rate of the image signal is included in the scan rate section.

[0013] The above image display unit can cause the input signal to bypass the second scan rate conversion unit when the scan rate of the image signal is not included in the scan rate section.

[0014] The above injection rate range can be classified into a first range of 60 Hz or less, a second range of 61 Hz to 120 Hz, and a third range of 121 Hz to 240 Hz.

[0015] The injection rate set corresponding to the first section may be 60 Hz, the injection rate set corresponding to the second section may be 120 Hz, and the injection rate set corresponding to the third section may be 240 Hz.

[0016] The above image display unit may include a second storage unit that stores information on a plurality of driving modes corresponding to each set injection rate of the first to third sections.

[0017] The above image display unit can perform adjustment of at least one of color clarity and color coordinates according to the driving mode.

[0018] According to another aspect of the disclosed invention, a method for controlling a display comprises: checking a scan rate section to which a scan rate of an input image signal belongs and a scan rate set to correspond to the scan rate section; generating a control signal including information on a driving mode corresponding to the set scan rate and transmitting the control signal to an image display unit; converting the resolution of the image signal to match the resolution of a panel; and bypassing a first scan rate conversion unit that converts the scan rate of the image signal to match the scan rate of the panel; converting the converted image signal into an input signal of the panel and transmitting the converted image signal to the image display unit; and driving the driving mode based on the control signal by the image display unit, so as to output the image signal to the panel.

[0019] If the injection rate of the above image signal is not included in the injection rate range, the first injection rate conversion unit may further include converting the injection rate of the image signal to match the injection rate of the panel. Gasoline price

[0020] If the injection rate of the image signal is included in the injection rate section, the image display unit may further include converting the injection rate of the image signal included in the input signal to an injection rate set corresponding to the injection rate section to which the injection rate of the image signal belongs by a second injection rate conversion unit.

[0021] If the injection rate of the above video signal is not included in the injection rate section, the image display unit may further include processing the input signal so as to bypass the second injection rate conversion unit.

[0022] The above injection rate range can be classified into a first range of 60 Hz or less, a second range of 61 Hz to 120 Hz, and a third range of 121 Hz to 240 Hz.

[0023] The above injection rate section can be classified into the first section of 60 Hz or less, the second section of 120 Hz, and the third section of 240 Hz.

[0024] The injection rate set corresponding to the first section may be 60 Hz, the injection rate set corresponding to the second section may be 120 Hz, and the injection rate set corresponding to the third section may be 240 Hz.

[0025] The disclosed display and its control method can efficiently process a video signal and output it to a panel.

[0026] The disclosed display and its control method can improve user experience by supporting low input latency in environments where real-time interaction is important.

[0027] The disclosed display and its control method can improve energy efficiency by reducing power consumption due to reduced resource usage.

[0028] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0029] Figure 1 is a block diagram of a display according to one embodiment.

[0030] Figure 2 illustrates a preset injection rate section and an injection rate set corresponding to the injection rate section according to one embodiment.

[0031] FIG. 3 illustrates a process of generating a control signal including information on a driving mode corresponding to a set injection rate according to one embodiment and transmitting the control signal to a video display unit.

[0032] FIG. 4 illustrates a display operation when the injection rate of a video signal according to one embodiment is included in the injection rate section.

[0033] FIG. 5 illustrates a display operation when the injection rate of a video signal according to one embodiment is not included in the injection rate section.

[0034] Figure 6 is a flowchart showing a method for controlling a display according to one embodiment.

[0035] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0036] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0037] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0038] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0039] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0040] The terms "part," "module," and "member" may be implemented in hardware or software. Depending on the embodiments, multiple "parts," "modules," or "members" may be implemented as a single component, or a single "part," "module," or "member" may include multiple components.

[0041] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0042] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0043] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0044] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0045] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0046] Below, displays according to various embodiments are specifically described with reference to the attached drawings.

[0047] Fig. 1 is a block diagram of a display according to one embodiment, and Fig. 2 illustrates preset injection rate sections and injection rates set corresponding to the injection rate sections according to one embodiment. In addition, Fig. 3 illustrates generating a control signal including information on a driving mode corresponding to a set injection rate according to one embodiment and transmitting it to a video display unit.

[0048] Referring to FIG. 1, the display (100) includes an input interface (110), a processor (120), an output interface (130), and an image display unit (140). The display (100) can be used in various electronic devices, such as televisions, monitors, and tablets. To facilitate understanding, a display (100) for a UHD 240Hz monitor will be described below as an example.

[0049] The input interface (110) can receive a video signal from a source device, for example, via HDMI (High-Definition Multimedia Interface), DP (DisplayPort), etc. The source device can include, for example, a computer graphics card, a game console, a media player, etc.

[0050] The processor (120) can process an image signal received through the input interface (110) and convert it into an input signal that can be recognized by the panel (160).

[0051] The processor (120) may include a first storage unit (122), a control signal generation unit (124), a scaler (126), and a first injection rate conversion unit (128).

[0052] The processor (120) can control the overall operation and function of the display (100) and may include memory (not shown). All functions of the display (100) may be processed by one processor (120) or performed by a combination of processors (120).

[0053] The processor (120) may be implemented as a digital signal processor (DSP), a microprocessor, or the like. However, the present invention is not limited thereto, and may include at least one of a central processing unit (CPU), a micro controller unit (MCU), a micro processing unit (MPU), a controller, an application processor (AP), a communication processor (CP), or an ARM processor, or may be defined by the terms thereof. In addition, the processor (120) may be implemented in the form of a system on chip (SoC), a large scale integration (LSI), or a field programmable gate array (FPGA) having a built-in processing algorithm.

[0054] The processor (120) may include logic circuits and arithmetic circuits as hardware. The processor (120) may control electrically connected components of the display (100) using programs, instructions, and / or data stored in the memory for the operation of the display (100). The processor (120) and the memory may be implemented as separate chips or as a single chip.

[0055] The memory can store programs, applications, and / or data for the operation of the display (100), and can store data generated by the processor. The memory can include non-volatile memory such as ROM (Read Only Memory) and flash memory for long-term data storage. The memory can include volatile memory such as S-RAM (Static Random Access Memory) and D-RAM (Dynamic Random Access Memory) for temporarily storing data. The memory can be included in the first storage unit (122).

[0056] Referring to FIG. 2, the first storage unit (122) can store a preset injection rate section and an injection rate set to correspond to the injection rate section.

[0057] The injection rate sections may be classified into, for example, a first section of 60 Hz or less, a second section of 61 Hz to 120 Hz, and a third section of 121 Hz to 240 Hz. However, this is not limited to this, and the injection rate sections may be classified differently in other embodiments.

[0058] The injection rate set corresponding to the first section may be 60 Hz, the injection rate set corresponding to the second section may be 120 Hz, and the injection rate set corresponding to the third section may be 240 Hz.

[0059] The control signal generation unit (124) checks the injection rate section to which the injection rate of the image signal belongs and the injection rate set corresponding to the injection rate section, and generates a control signal including information on the driving mode corresponding to the set injection rate and transmits the control signal to the image display unit (140).

[0060] For example, if the scan rate of the video signal is 60 Hz, it corresponds to the first section, and the scan rate set corresponding to the first section is 60 Hz.

[0061] Referring to FIG. 3, in this case, the control signal generation unit (124) generates a control signal including information on the first driving mode corresponding to the set injection rate of 60 Hz and transmits the control signal to the image display unit (140). The image display unit (140) may store information on the first to third driving modes corresponding to the set injection rates of the first to third sections, respectively.

[0062] When the image display unit (140) receives the above-described control signal, it recognizes the information about the first driving mode included in the control signal and can change the state of the first driving mode among the first to third driving modes stored in the image display unit (140) to an active state. The remaining second and third driving modes are maintained in an inactive state. Through this, the image display unit (140) can prepare to drive the first driving mode.

[0063] Likewise, when the set injection rate is 120 Hz, a control signal including information on the second driving mode is transmitted to the image display unit (140). When the image display unit (140) receives the control signal, it recognizes the second driving mode included in the control signal and can change the state of the second driving mode among the driving modes stored on the image display unit (140) to an active state. The remaining first driving mode and third driving mode are maintained in an inactive state.

[0064] In addition, when the set injection rate is 240 Hz, a control signal including information on the third driving mode is transmitted to the image display unit (140). When the image display unit (140) receives the control signal, it recognizes the third driving mode included in the control signal and can change the status of the third driving mode among the driving modes stored on the image display unit (140) to an active state. The remaining first and second driving modes are maintained in an inactive state.

[0065] The scaler (126) converts the resolution of the video signal to match the resolution of the panel (160). For example, the scaler (126) can convert the FHD (Full High Definition) resolution of the video signal to match the UHD (Ultra High Definition) resolution of the panel (160). The FHD resolution is 1920 x 1080 pixels, and there are 1920 pixels horizontally and 1080 pixels vertically on the screen. The UHD resolution may be 3840 x 2160 pixels or 4096 x 2160 pixels.

[0066] The scaler (126) can convert the resolution of the image signal to match the resolution of the panel (160) by enlarging or reducing the pixel size of the image signal based on the pixel size value of the panel (160) that is specifically set in advance.

[0067] The scaler (126) may be configured separately from the processor (120) in another embodiment. In this case, the processor (120) may control the scaler (126) to convert the resolution of the image signal to match the resolution of the panel (160).

[0068] The first injection rate conversion unit (128) converts the injection rate of the image signal to match the injection rate of the panel (160).

[0069] The first scanning rate conversion unit (128) can convert the 60 Hz scanning rate of the video signal to the 240 Hz scanning rate of the panel, for example, when the scanning rate of the video signal is 60 Hz and the scanning rate of the panel is 240 Hz. At this time, the first scanning rate conversion unit (128) can generate a new frame to convert the scanning rate of the video signal to match the scanning rate of the panel (160).

[0070] The first injection rate conversion unit (128) may include a Frame Rate Controller (FRC).

[0071] The first injection rate conversion unit (128) can use resources such as DDR (Double Data Rate) memory and flash memory (Fresh Memory) during the injection rate conversion process.

[0072] When the refresh rate of the image signal is included in the refresh rate section described above, the processor (120) can cause the image signal to bypass the first refresh rate converter (128) after passing through the scaler (126), convert the image signal into an input signal that the panel (160) can recognize, and transmit it to the image display unit (140) through the output interface (130). That is, the processor (120) can analyze various pieces of information included in the image signal and convert them into a signal that the panel (160) can receive. The input signal can include information such as the resolution of the image signal, the refresh rate, color data to be displayed in each pixel of the panel (160), HDR (High Dynamic Range), Freesync, etc. Here, HDR improves the contrast between bright and dark parts so that a more natural image can be provided. Freesync synchronizes the pixel output between the graphics card and the display so that screen tearing and stutter can be reduced or eliminated.

[0073] As described above, the first scan rate conversion unit (128) may consume a lot of power because it uses resources such as DDR memory and flash memory. In addition, in an environment where real-time interaction is important, such as a game, low input latency is required, but when the scan rate of the video signal is adjusted to the scan rate of the panel (160) by the first scan rate conversion unit (128), a timing delay may occur. In a game environment where low input latency is important, the low input latency, which is a characteristic of a gaming monitor, may not be supported due to this timing delay.

[0074] Accordingly, in an embodiment of the present invention, when the injection rate of the image signal is included in the injection rate section described above, the processor (120) causes the image signal to bypass the first injection rate conversion unit (128) after passing through the scaler (126).

[0075] For example, if the scan rate of the image signal is 60.4 Hz, it is included in the first section among the above-described scan rate sections, so the image signal converted to match the resolution of the panel (160) by the scaler (126) bypasses the first scan rate conversion unit (128). Thereafter, the image signal can be converted into an input signal that can be recognized by the panel (160) and then transmitted to the image display unit (140).

[0076] This can solve the problem of not being able to support low input latency due to timing delay in the past. When the first scanning rate conversion unit (128) is bypassed, the power supply to the first scanning rate conversion unit (128) is cut off, so that the state of the first scanning rate conversion unit (128) can be converted to an inactive state.

[0077] When the injection rate of the image signal is not included in the injection rate range described above, the processor (120) can convert the resolution of the image signal to match the resolution of the panel (160) by the scaler (126), and can convert the injection rate of the image signal to match the injection rate of the panel (160) by the first injection rate conversion unit (128).

[0078] For example, assume that the above-described injection rate sections are classified into a first section of 60 Hz or less, a second section of 120 Hz, and a third section of 240 Hz. The injection rate set corresponding to the first section may be 60 Hz, the injection rate set corresponding to the second section may be 120 Hz, and the injection rate set corresponding to the third section may be 240 Hz.

[0079] At this time, if a 144Hz video signal is input, the refresh rate of the video signal is not included in any of the first to third sections above.

[0080] In this case, the processor (120) can convert the resolution (FHD) of the image signal to match the resolution (UHD) of the panel (160) by the scaler (126), and can convert the scan rate (144 Hz) of the image signal to match the scan rate (240 Hz) of the panel (160) by the first scan rate converter (128).

[0081] In this way, the reason why the first injection rate conversion unit (128) converts the injection rate of the video signal to match the injection rate of the panel (160) is because, in the case of a gaming monitor, for example, it is more important to display a screen with good image quality than to increase the input waiting time or power consumption.

[0082] When a 144Hz video signal is input, since it exceeds the refresh rate of the second section (120Hz) and is lower than the refresh rate of the third section (240Hz), the control signal described above may include information about the third driving mode and be transmitted to the video display unit (140). The video display unit (140) activates the third driving mode based on the control signal and prepares to drive.

[0083] The output interface (130) transmits an input signal that can be recognized by the panel (160) to the image display unit (140).

[0084] The video display unit (140) may play a role in controlling when each pixel should be activated when displaying a video signal on the panel (160). This may mean that each pixel is activated in the correct order to generate a correct image.

[0085] The video display unit (140) can control how much of a specific color and brightness each pixel should be displayed. The video display unit (140) can assign appropriate values ​​to each pixel based on the color and brightness information of the video signal to ensure that the correct color and brightness are displayed.

[0086] When the image display unit (140) receives the above-described input signal, it can drive the driving mode that is in an activated state based on the above-described control signal and output an image signal to the panel (160).

[0087] For example, in a 240Hz UHD monitor environment, at least one of color clarity, color coordinates, etc. can be adjusted according to each driving mode corresponding to the set refresh rate described above.

[0088] Specifically, when the first driving mode is activated, the color sharpness value can be emphasized. When the second driving mode is activated, afterimages or flickering are likely to occur, so the sharpness value can be lowered and color coordinates can be tuned to prevent flickering.

[0089] The image display unit (140) may include a second injection rate conversion unit (152), a second storage unit (154), and a panel (160).

[0090] The second scanning rate conversion unit (152) converts the scanning rate of the image signal included in the input signal into a scanning rate set to correspond to the scanning rate range to which the scanning rate of the image signal belongs, when the scanning rate of the image signal included in the input signal is included in the scanning rate range. The second scanning rate conversion unit (152) may include a Frame Rate Controller (FRC).

[0091] The image display unit (140) is designed to suit the characteristics of the panel (160) and can quickly process the injection rate conversion task through high-performance processing. Therefore, even if the second injection rate conversion unit (152) converts the injection rate of the image signal included in the input signal to a injection rate set corresponding to the injection rate section to which the injection rate of the image signal belongs, problems such as timing delays rarely occur.

[0092] For example, assume that the injection rate sections are classified into a first section of 60 Hz or less, a second section of 61 Hz to 120 Hz, and a third section of 121 Hz to 240 Hz, and that the injection rate set corresponding to the first section is 60 Hz, the injection rate set corresponding to the second section is 120 Hz, and the injection rate set corresponding to the third section is 240 Hz.

[0093] FIG. 4 illustrates a display operation when the injection rate of a video signal according to one embodiment is included in the injection rate section.

[0094] Referring to FIG. 4, when the scan rate of the image signal is 60.4 Hz, as described above, the image signal is converted to fit the resolution (UHD) of the panel (160) by the scaler (126), bypasses the first scan rate conversion unit (128), and is then converted into an input signal to be input to the image display unit (140) through the output interface (130).

[0095] At this time, since the control signal for activating the first driving mode is transmitted to the image display unit (140), when the image display unit (140) receives an input signal, the second scanning rate conversion unit (152) converts the scanning rate (60.4 Hz) of the image signal to the set scanning rate (60 Hz) corresponding to the first section and can drive the first driving mode.

[0096] The video display unit (140) can allow the input signal to bypass the second scan rate conversion unit (152) when the scan rate of the video signal is not included in the scan rate section.

[0097] For example, assume that the injection rate sections are classified into a first section of 60 Hz or less, a second section of 120 Hz, and a third section of 240 Hz, and that the injection rate set corresponding to the first section is 60 Hz, the injection rate set corresponding to the second section is 120 Hz, and the injection rate set corresponding to the third section is 240 Hz.

[0098] FIG. 5 illustrates a display operation when the injection rate of a video signal according to one embodiment is not included in the injection rate section.

[0099] Referring to FIG. 5, when the refresh rate of the video signal is 144 Hz, the refresh rate of the video signal is not included in any of the first to third sections above.

[0100] The corresponding video signal is converted to the resolution (UHD) of the panel (160) by the scaler (126), and then converted to the scanning rate (240 Hz) of the panel (160) by the first scanning rate converter (128), and then can be input as an input signal to the video display unit (140) through the output interface (130).

[0101] When the scan rate of the video signal is 144 Hz, since the control signal for activating the third driving mode is transmitted to the video display unit (140) as described above, the video display unit (140) can operate the third driving mode while allowing the input signal to bypass the second scan rate conversion unit (152).

[0102] The second storage unit (154) can store information about the first to third sections described above, information about the injection rate set for each section, information about a plurality of driving modes corresponding to each set injection rate, status information of each driving mode, etc. In addition, the second storage unit (154) can store color coordinates related to each driving mode, values ​​of a color reproduction area, etc. The second storage unit (154) can store programs, applications, and / or data for the operation of the image display unit (140), and can store data generated by the image display unit (140). The second storage unit (154) can include a non-volatile memory such as a ROM (Read Only Memory) or a flash memory for storing data for a long period of time. The second storage unit (154) can include a volatile memory such as a S-RAM (Static Random Access Memory) or a D-RAM (Dynamic Random Access Memory) for temporarily storing data.

[0103] Some of the operations and functions performed by the video display unit (140) may be performed by a Timing Controller (TCon), and the TCon (not shown) may be included in the video display unit (140) or provided on a separate main board. In this case, the video display unit (140) may control the TCon to perform some of the operations and functions of the video display unit (140).

[0104] The panel (160) is a part that forms the screen of the display (100), and can activate pixels and display them in the correct color based on the signal generated by the image display unit (140).

[0105] The panel (160) may include, for example, TN (Twisted Nematic), IPS (In-Plane Switching), VA (Vertical Alignment), OLED (Organic Light-Emitting Diode), MicroLED, QLED (Quantum Dot LED), etc. The panel (160) may include a driving circuit, a backlight unit, etc., which may be implemented in a form such as a-si TFT, LTPS (low temperature poly silicon) TFT, OTFT (organic TFT), etc.

[0106] Figure 6 is a flowchart illustrating a method for controlling a display according to one embodiment. In the following, duplicate content described above is omitted as much as possible.

[0107] Referring to Fig. 6, a video signal is input (601) by an input interface (110). For example, a video signal of FHD 60.4 Hz can be received from a display (100) for a UHD 240 Hz monitor.

[0108] The processor (120) checks the injection rate section to which the injection rate of the image signal belongs and the injection rate set corresponding to the injection rate section by the control signal generation section (124), and generates a control signal including information on the driving mode corresponding to the set injection rate and transmits the control signal to the image display section (140) (611, 621).

[0109] For example, assume that the refresh rate sections are classified into a first section of 60 Hz or less, a second section of 61 Hz to 120 Hz, and a third section of 121 Hz to 240 Hz, and that the refresh rate set corresponding to the first section is 60 Hz, the refresh rate set corresponding to the second section is 120 Hz, and the refresh rate set corresponding to the third section is 240 Hz. The control signal generation unit (124) can check the first section to which the image signal belongs and the refresh rate (60 Hz) set corresponding to the first section, and generate a control signal including information on the first driving mode corresponding to the set refresh rate, and transmit the control signal to the image display unit (140).

[0110] The resolution of the video signal is converted to the resolution of the panel (160) by the scaler (126) (631). The scaler (126) can convert the resolution of the FHD video signal to the resolution of the UHD panel (160).

[0111] The processor (120) bypasses the first scan rate conversion unit (128) that converts the scan rate of the image signal to match the scan rate of the panel (160), and converts the image signal converted by the scaler (126) into an input signal that can be recognized by the panel (160) and transmits it to the image display unit (140) through the output interface (130) (641).

[0112] In another example, if the injection rate of the image signal is not included in the injection rate section, a process of converting the injection rate of the image signal converted to the resolution of the panel (160) by the scaler (126) to the injection rate of the panel by the first injection rate conversion unit (128) may be further included.

[0113] When the image display unit (140) receives an input signal, it drives the driving mode based on the above-described control signal and outputs an image signal to the panel (160) (651).

[0114] Here, the image display unit (140) can convert the scan rate of the image signal included in the input signal into a scan rate set to correspond to the scan rate section to which the scan rate of the image signal belongs by the second scan rate conversion unit (152).

[0115] For example, the image display unit (140) can convert the image signal's scan rate (60.4 Hz) to a scan rate (60 Hz) set to correspond to the first section to which the image signal's scan rate belongs by the second scan rate conversion unit (152). In another example, if the image signal's scan rate is 144 Hz, it can be converted to a scan rate (240 Hz) set to correspond to the third section to which the image signal's scan rate belongs.

[0116] If the injection rate of the above-described video signal is not included in the injection rate section, the video display unit (140) can process the input signal to bypass the second injection rate conversion unit (152).

[0117] The methods according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between multiple user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product (e.g., a downloadable app) may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0118] The above illustrates and describes specific embodiments. However, the present invention is not limited to the aforementioned embodiments, and those skilled in the art will appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. A display unit including a panel; and A processor that processes an input image signal and converts it into an input signal of the panel; The above processor, A first scan rate conversion unit is included that checks the scan rate section to which the scan rate of the image signal belongs and the scan rate set corresponding to the scan rate section, generates a control signal including information on the driving mode corresponding to the set scan rate and transmits the control signal to the image display unit, converts the resolution of the image signal to match the resolution of the panel, and converts the scan rate of the image signal to match the scan rate of the panel. The processor, when the injection rate of the image signal is included in the injection rate section, causes the image signal to bypass the first injection rate conversion unit, converts the image signal into the input signal, and transmits it to the image display unit. The above image display unit is a display that, when receiving the input signal, drives the driving mode based on the control signal and outputs the image signal to the panel.

2. In paragraph 1, The above processor, If the injection rate of the above video signal is not included in the injection rate range, A display that converts the resolution of the image signal to match the resolution of the panel, and then converts the scan rate of the image signal to match the scan rate of the panel by the first scan rate converter.

3. In paragraph 1, The above video display unit, A display including a second injection rate conversion unit that converts the injection rate of the image signal included in the input signal into an injection rate set to correspond to the injection rate section to which the injection rate of the image signal belongs, when the injection rate of the image signal is included in the injection rate section.

4. In paragraph 3, The above video display unit, A display that causes the input signal to bypass the second scanning rate converter when the injection rate of the above video signal is not included in the injection rate range.

5. In paragraph 1, A display in which the above injection rate sections are classified into a first section of 60 Hz or less, a second section of 61 Hz to 120 Hz, and a third section of 121 Hz to 240 Hz.

6. In paragraph 5, The injection rate set corresponding to the first section above is 60 Hz, The injection rate set corresponding to the above second section is 120 Hz, A display with a refresh rate of 240 Hz set to correspond to the third section above.

7. In paragraph 6, The above video display unit, A display including a second storage unit that stores information on a plurality of driving modes corresponding to each set injection rate of the first to third sections.

8. In paragraph 7, The above video display unit, A display that performs adjustment of at least one of color vividness and color coordinates according to the above driving mode.

9. Check the injection rate range to which the injection rate of the input video signal belongs and the injection rate set to correspond to the injection rate range. Generate a control signal including information on the driving mode corresponding to the injection rate set above and transmit it to the image display unit, Convert the resolution of the above video signal to match the resolution of the panel, Bypassing the first injection rate conversion unit that converts the injection rate of the above image signal to match the injection rate of the panel, the converted image signal is converted into an input signal of the panel and transmitted to the image display unit. A method for controlling a display that drives the driving mode based on the control signal by the image display unit and outputs the image signal to the panel.

10. In paragraph 9, If the injection rate of the above video signal is not included in the injection rate range, A method for controlling a display further comprising converting the injection rate of the image signal to match the injection rate of the panel by the first injection rate conversion unit.

11. In paragraph 9, If the injection rate of the above video signal is included in the above injection rate range, A control method for a display further comprising converting the scan rate of the image signal included in the input signal into a scan rate set to correspond to a scan rate section to which the scan rate of the image signal belongs by the second scan rate conversion unit.

12. In paragraph 11, If the injection rate of the above video signal is not included in the injection rate range, A method for controlling a display further comprising processing the input signal so that the image display unit bypasses the second scanning rate conversion unit.

13. In paragraph 9, A method for controlling a display, wherein the above injection rate sections are classified into a first section of 60 Hz or less, a second section of 61 Hz to 120 Hz, and a third section of 121 Hz to 240 Hz.

14. In paragraph 9, A method for controlling a display in which the above injection rate sections are classified into a first section of 60 Hz or less, a second section of 120 Hz, and a third section of 240 Hz.

15. In paragraph 13 or 14, The injection rate set corresponding to the first section above is 60 Hz, The injection rate set corresponding to the above second section is 120 Hz, A method for controlling a display having a refresh rate of 240 Hz set to correspond to the third section above.

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