Display apparatus and device

Abstract

A display apparatus and device. The display apparatus has a first direction and a second direction which intersect each other. The display apparatus comprises a display panel and a drive part; the display panel is provided with n display windows in the first direction, the display windows extend in the second direction, and each display window is provided with m display regions in the second direction, where n≥0, m≥0, and n and m are not both 0 at the same time; and the drive part is configured to control and change the refresh rate when the display regions display pictures.

Description

Display devices and equipment

[0001] This application claims priority to Chinese patent application No. 202311869728.3 filed on December 29, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of liquid crystal display technology, and in particular to a display device and equipment. Background Art

[0003] With the rapid development of the LCD display industry, users are increasingly demanding higher display quality. High frequency and high resolution are new customer demands for display quality. However, high resolution and high frequency driving also increase power consumption. For smart display devices, effectively controlling power consumption is a major competitive advantage.

[0004] Currently, LCD devices are used in a wide variety of scenarios, each requiring different display frequencies. Existing technologies typically control the display frequency of the entire LCD screen, but this is unable to adapt to the diverse display frequency requirements of different scenarios, resulting in high power consumption. SUMMARY OF THE INVENTION

[0005] The present application provides a display device and apparatus to solve the technical problem of single display frequency control and high power consumption of a liquid crystal display screen.

[0006] In a first aspect, the present application provides a display device having a first direction X and a second direction Y intersecting each other, the display device comprising:

[0007] a display panel, wherein the display panel has n display windows along the first direction X, and the display windows extend along the second direction Y; each display window has m display areas along the second direction, wherein n≥0, m≥0, n and m are integers and are not both 0; and

[0008] The driving unit is configured to control and change the refresh frequency of the display area when displaying pictures.

[0009] In a second aspect, the present application provides a display device, comprising the display apparatus as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic diagram of a circuit connection structure provided in an embodiment of the present application.

[0011] FIG. 2 is a schematic diagram of the division and circuit connection of a display panel provided in one embodiment of the present application.

[0012] FIG3 is a schematic diagram of the division and circuit connection of a display panel provided in one embodiment of the present application.

[0013] FIG. 4 is a schematic diagram of the division and circuit connection of a display panel provided in one embodiment of the present application.

[0014] FIG5 is a schematic diagram of the division and circuit connection of a display panel provided in another embodiment of the present application.

[0015] FIG6 is a schematic diagram of the division and circuit connection of a display panel provided in yet another embodiment of the present application.

[0016] FIG7 is a schematic diagram of the division and circuit connection of a display panel provided in yet another embodiment of the present application.

[0017] FIG8 is a schematic diagram of the circuit connection structure of a drive control module provided in an embodiment of the present application.

[0018] FIG9 is a timing diagram of the first signal and the gate signal provided in an embodiment of the present application.

[0019] FIG10 is a timing diagram of the second signal and the gate signal provided in an embodiment of the present application.

[0020] FIG11 is a timing diagram of the third signal and the gate signal provided in an embodiment of the present application.

[0021] FIG12 is a schematic diagram of the circuit connection structure of multiple drive control modules provided in an embodiment of the present application.

[0022] FIG13 is a schematic diagram of the connection structure of the driving circuit provided in some embodiments of the present application.

[0023] FIG14 is a schematic diagram of the timing structure of the driving signal provided in some embodiments of the present application. Modes for Carrying Out the Invention

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] The relevant technical personnel of this application have noticed that, at present, there are more and more usage scenarios for liquid crystal display devices. By observing the actual usage scenarios of liquid crystal display devices, it can be found that there are different requirements for the display frequency of the liquid crystal display screen during live broadcast, online classes, online games, and chat interactions. For example, the requirement for the display frequency during chat interaction is lower than that of online games. However, the display frequency of the current liquid crystal display screen is usually fixed, or the display frequency of the liquid crystal display screen can only be controlled as a whole, and the display frequency cannot be partitioned or diversified according to the usage scenario, which leads to excessive power consumption of the display screen. Therefore, the embodiment of the present application provides a display device that can control the display frequency in a diversified manner, thereby solving the problem of excessive power consumption of the current display screen.

[0026] The specific implementation methods of this application are described below through examples.

[0027] As shown in Figures 1 to 13, embodiments of the present application provide a display device comprising: a display panel having a display area and a non-display area, n display windows extending along a first direction X of the display area, each display window extending along a second direction Y, each display window having m display areas along the second direction Y, where n ≥ 0, m ≥ 0, n and m are integers and cannot be zero at the same time; and a driver configured to control and change the refresh rate of the display area when displaying an image. Specifically, the first direction X referred to in the embodiments of the present application is a first data refresh direction (i.e., the direction in which columns extend), and the second direction Y is a second data refresh direction (i.e., the direction in which rows extend). To achieve row-by-row display on the display screen, the first data refresh rate and the second data refresh rate are matched. That is, in conventional display, the first data refresh rate is equal to the second data refresh rate, thereby ensuring that all display areas of the display panel have the same refresh rate. In different usage scenarios, single-screen or multi-frequency driving can be performed according to the displayed content, thereby controlling the refresh rate of the display window or display area separately, thereby reducing the burden on the display screen and lowering the power consumption of the display screen.

[0028] In the embodiment of the present application, the display panel can be divided into different areas according to the usage scenarios and refresh frequencies of the display screen, thereby achieving control of multiple areas of the display panel.

[0029] As shown in FIG1 , the display panel includes a display unit, and the driving unit further includes a data driving module and a gate driving module, which are connected to the display unit.

[0030] FIG2 shows one embodiment of the present application. In this embodiment, along a first direction X, the display panel is divided into three display windows, namely display window 1, display window 2, and display window 3. Each display window is further divided into three display zones. Therefore, nine display zones are finally obtained in the display area of ​​the display panel. For ease of distinction, the nine display zones are divided separately, with columns A, B, and C obtained by column division, and rows 1, 2, and 3 obtained by row division. Therefore, the nine display zones can be combined to obtain display zone A1, display zone A2, display zone A3, display zone B1, display zone B2, display zone B3, display zone C1, display zone C2, and display zone C3. By controlling each display zone separately through the driving unit, nine refresh frequencies can be obtained, including refresh frequencies fA1 to fC3 (corresponding to the number of the display zones). By dividing the display area into nine display zones and controlling the refresh frequencies of the nine display zones separately, the overall display power consumption of the display panel can be reduced.

[0031] FIG5 shows another embodiment of the present application. In this embodiment, the display panel is divided into one display window along a first direction X, and the display window is divided into three display areas along a second direction Y. Consequently, the display area of ​​the display panel comprises three display areas: display area A, display area B, and display area C. Each display area is controlled separately by a driving unit, i.e., the refresh frequency of display area A is 120 Hz, the refresh frequency of display area B is 60 Hz, and the refresh frequency of display area C is 30 Hz. By dividing the display area into three display areas and separately controlling the refresh frequencies of the three display areas, the overall display power consumption of the display panel can be reduced.

[0032] FIG6 shows another embodiment of the present application. In this embodiment, the display panel is divided into three display windows along the first direction X, namely display window 1, display window 2, and display window 3. Among them, display window 1 is divided into two display areas along the second direction Y. Therefore, there are four display areas in the display area of ​​the final display panel, namely display area 1_1, display area 1_2, display area 2, and display area 3. Each display area is controlled separately by the driving unit, that is, the refresh frequency of display area 1_1 is 120Hz, the refresh frequency of display area 1_2 is 180Hz, the refresh frequency of display area 2 is 60Hz, and the refresh frequency of display area 3 is 30Hz. By dividing the display area into four display areas and controlling the refresh frequencies of the four display areas separately, the overall display power consumption of the display panel can be reduced.

[0033] FIG7 shows another embodiment of the present application. In this embodiment, the display panel is divided into three display windows along the first direction X, namely display window 1, display window 2, and display window 3. Each display window is not divided along the second direction Y. Therefore, there are three display windows or display areas in the display area of ​​the final display panel, namely display area 1, display area 2, and display area 3. Each display area is controlled separately by the driving unit, that is, the refresh frequency of display area 1 is 120 Hz, the refresh frequency of display area 2 is 60 Hz, and the refresh frequency of display area 3 is 30 Hz. By dividing the display area into three display areas and controlling the refresh frequencies of the three display areas separately, the overall display power consumption of the display panel can be reduced.

[0034] It should be noted that the above embodiments specifically divide the display area of ​​the display panel according to usage scenarios, but this does not mean that the display area can only be divided into the several situations listed in the above embodiments. In some other embodiments of the present application, the display area can be divided along the first direction X to obtain more display windows, and each display window can also be divided along the second direction Y to obtain more display areas. The specific number of display areas can be selected based on the actual usage of the display device. The embodiments of the present application do not further list other combinations of numbers.

[0035] As shown in Figures 1 and 8, in an embodiment of the present application, the driving unit includes a control module, which is connected to the display window in a one-to-one correspondence, and the number of control modules is not greater than n. Specifically, the number of control modules is selected according to the maximum number of display windows. When the maximum number of display windows is 3, the number of control modules can be 3. The control modules are connected one-to-one with the display windows to achieve separate control. As shown in Figure 8, when the number of display windows is 3, the number of control modules is also 3. The three control modules respectively output the first signal, the second signal, and the third signal to control the conduction time of the control signal required by the switch tube in the display unit corresponding to the display window. This achieves control of the refresh frequency of each display window.

[0036] As shown in Figures 1, 6, 7 and 8, in an embodiment of the present application, the control module is configured as a control circuit that provides a control signal to the display window, and the control circuit is composed of at least one thin-film transistor; in response to the control of the control signal, the refresh frequencies of the various display windows are partially the same or different from each other. Specifically, the control module controls the on-time of the switch tube of the display unit corresponding to the display window or display area by sending a control signal, thereby controlling the refresh frequency of the display window or display area. It can be understood that if a different refresh frequency is to be achieved for each display window, it is only necessary to provide a different control signal for each display window; if the refresh frequencies of individual display windows are to be the same while others are different, it is only necessary to provide the same control signal to the individual display windows.

[0037] As shown in Figures 1, 8, 9, 10, and 11, in an embodiment of the present application, a control module is configured to provide control signals to the display windows. In response to the control signals provided by the control module, the refresh rates of the display windows are proportional. Specifically, the control module determines the refresh rate of each display window by controlling the duration of the output control signals. As shown in Figure 9, gateA_1, gateA_2, gateA_3, and gateA_4 are the conduction signals (i.e., control signals) for the first column of display windows, and each conduction signal has three high-level periods. The first signal controls the connection between each conduction signal and the display unit. When the conduction signal is high and the first signal is also high, the switches in the display unit circuit are in the on state, and the display unit operates normally. When the conduction signal is low or the first signal is low, the display unit does not operate. In Figure 9, the first signal remains high throughout the display period, so the display unit remains in normal operation, and the refresh rate of the display window is the highest during this period.

[0038] As shown in Figure 10, in this embodiment of the present application, gateB_1, gateB_2, gateB_3, and gateB_4 are the conduction signals for the second column of display windows, and each conduction signal has two high-level periods. The second signal is used to control the connection between each conduction signal and the display unit. In Figure 10, the high-level period of the first signal only accounts for two-thirds of the entire display cycle. Therefore, the normal operating time of the display unit is only two-thirds of the original duration, and the refresh rate of the display window is reduced.

[0039] As shown in Figure 11, in this embodiment of the present application, gateC_1, gateC_2, gateC_3, and gateC_4 are the conduction signals for the third column of display windows, and each conduction signal has a high-level period. Similarly, the third signal is used to control the connection between each conduction signal and the display unit. In Figure 11, the high-level period of the third signal only accounts for one-third of the entire display cycle. Therefore, the normal operating time of the display unit is only one-third of the original duration, and the refresh frequency of the display window is the lowest at this time.

[0040] As shown in Figures 8 and 12, in an embodiment of the present application, the driving unit includes a driving control module, which is connected to the display area, and the number of driving control modules is no greater than m. Specifically, the driving control module is the source module in Figures 8 and 12, wherein the source module includes a source driving circuit, a gate driving circuit, and a data driving circuit. The source module can be used to generate a gate driving signal (i.e., a Gate signal), which can be used to drive the display units in the display screen row by row, thereby controlling the refresh and scanning of the display units; at the same time, the source module can generate a data driving signal (i.e., a DATA signal), which is used to drive the display units in the display screen column by column, thereby controlling the brightness value and color of the display units; the source module can also generate a driving voltage, which is used to control the connection status of the display units in the display screen.

[0041] As shown in Figures 8 and 12, in an embodiment of the present application, a drive control module is connected to each display area one by one; alternatively, multiple display areas are connected to one drive control module. Specifically, as shown in Figure 8, only one source module is provided, and one source module is connected to multiple display areas. The source module controls the gate drive signal, data drive signal, and drive voltage output by each display area separately, thereby achieving control of the refresh frequency of different display areas. As shown in Figure 12, multiple source modules are provided, one source module is connected to one display area, and each source module can independently send corresponding gate drive signals, data drive signals, and drive voltages to control the display area, thereby achieving control of the refresh frequency of the display area.

[0042] As shown in Figures 8 and 12, in an embodiment of the present application, the drive control module is configured to provide a refresh signal to the display area; in response to the control of the refresh signal, the refresh frequencies of the display areas are partially the same or different. Specifically, whether it is a scheme in which a source module controls multiple display areas as in Figure 8 or a scheme in which a source module controls a single display area as in Figure 12, the refresh frequencies of the display areas can be controlled by outputting control signals (i.e., gate drive signals, data drive signals, and drive voltages), and based on the output signals, the refresh frequencies of the display areas can be controlled to be different, or only some of the display areas can have the same refresh frequencies.

[0043] As shown in Figures 2 to 7, in embodiments of the present application, the display panel further includes a non-display area, and the driver unit is located in the non-display area; alternatively, the driver unit is located partially in the non-display area and partially in the display area. Specifically, the display area in Figures 2 to 7 is located in the display area, and the rest of the area except for the display area is the non-display area (i.e., the border). The GOA, source module, and IC in the figures are all driver units, where GOA represents the GOA circuit, and IC represents the driver chip, i.e., the Driver IC. As shown in Figure 2, the GOA circuits are located in the non-display areas on both sides, and the source module and IC are both located in the non-display area at the bottom. It should be noted that the specific location of the GOA circuit is not fixed and can be adjusted according to the size and design of the actual display device. Generally, the GOA circuit is located on the left and right sides of the non-display area. However, in some other embodiments of the present application, as shown in Figure 4, a portion of the GOA circuit is located in the non-display areas on both sides, while another portion of the GOA circuit is located in the display area (i.e., in-plane GOA).

[0044] Furthermore, in order to achieve independent control of the driving circuit, the GOA circuit partition driving circuit can be placed in the left or right non-display area when the non-display area is not limited. When the left and right borders are limited, the GOA circuit can also be placed on the top of the non-display area. As shown in Figure 3, part of the GOA circuit is located in the non-display areas on both sides, the other part of the GOA circuit is located in the non-display area at the top, and the source module and IC are both located in the non-display area at the bottom; at the same time, the gate wiring is routed parallel to the first refresh direction to connect to the pixel TFT. It should be noted that when the second data refresh area is relatively long, that is, when the gate loading is large parallel to the second data refresh direction and the border is not limited, the gate driving circuit is placed on the left and right borders respectively to realize the driving of the central longitudinal area. At this time, the driving of the central area can be dual-drive or interlace drive.

[0045] Furthermore, one GOA circuit can control multiple display areas. As shown in FIG5 , GOA circuit 1 is connected to display area A, and GOA circuit 2 is connected to display area B and display area C. In this way, one GOA circuit can control the display units of two display areas. In addition, as shown in FIG6 , the GOA1_1 circuit is connected to display area 1_1, and the GOA1_2 circuit is connected to display area 1_2. This connection relationship realizes a one-to-one connection. It should be noted that due to the different refresh frequencies of display area 1_1 and display area 1_2, the driving architecture of the GOA1_1 circuit and the GOA1_2 circuit can be the same, but the gate drive of the pixels of display area 1_1 and display area 1_2 needs to be disconnected; while display area 2 has two GOA circuits 2 connected, and display area 3 also has two GOA circuits 3 connected, realizing multi-way to one connection control. It is particularly noted that in order to achieve different frequency refreshes, the circuit architectures of display area 1, display area 2, and display area 3 can be the same or different, and the circuit driving mode can be dual drive or interlace drive. As shown in FIG7 , display area 1 , display area 2 and display area 3 are all connected and controlled by GOA circuits disposed on both sides of the non-display area.

[0046] Furthermore, in an embodiment of the present application, high frequency in some areas can also be achieved by frame skipping. In order to achieve free adjustment of regional frequency, it is necessary to perform fine partitioning in the first direction X, and each area is triggered by a separate STV. The circuit driving circuit shown in Figure 13 has four display areas in the first direction and includes four trigger signals, namely STV1, STV2, STV3 and STV4. The four display areas are respectively connected to STV1, STV2, STV3 and STV4 to obtain trigger signals; at the same time, the control timing is shown in Figure 14. By controlling the fourth frame STV1 and STV4 not to trigger (i.e., low level), the high level period of gateN, gateN+1, gate3N+1 and gate4N cannot be triggered, thereby controlling the display unit and then controlling the refresh frequency of the display screen.

[0047] The display device provided in the embodiment of the present application divides the display panel into multiple display areas along the first direction and the second direction, and controls and changes the refresh frequency of the display area through the driving unit to achieve control of the refresh frequency of different areas in the display panel, thereby realizing diversified control of multi-frequency and high frequency in different areas of the display panel, and also reducing the power consumption of the display screen.

[0048] An embodiment of the present application further provides a display device, which includes a display apparatus as provided in any one of the above items.

[0049] The above is a detailed introduction to a display device and equipment provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device having intersecting first and second directions, the display device comprising: A display panel having n display windows along the first direction, the display windows extending along the second direction; Each of the display windows has m display areas along the second direction, where n≥0, m≥0, n and m are integers, and they are not both 0 at the same time; and A driving unit configured to control and change the refresh frequency when the display areas display images.

2. The display device according to claim 1, wherein, The driving unit includes a control module, the control module is connected to the display windows in a one-to-one correspondence, and the number of the control modules is not greater than n.

3. The display device according to claim 2, wherein The control module is configured to provide control signals to the display windows; In response to the control of the control signals, the refresh frequencies of the display windows are partially the same or different from each other.

4. The display device according to claim 2, wherein, The control module is configured to provide control signals to the display windows; In response to the control signals provided by the control module being in a proportional relationship, the refresh frequencies of the display windows are in a proportional relationship.

5. The display device according to claim 1, wherein, The driving unit includes a driving control module, the driving control module is connected to the display areas, and the number of the driving control modules is not greater than m.

6. The display device according to claim 5, wherein, The driving control module is connected to the display areas one by one; or, Multiple display areas are connected to one driving control module.

7. The display device according to claim 5 or 6, wherein, The driving control module is configured to provide refresh signals to the display areas; In response to the control of the refresh signals, the refresh frequencies of the display areas are partially the same or different from each other.

8. The display device according to claim 5 or 6, wherein, The driving control module includes a source driving circuit, a gate driving circuit, and a data driving circuit.

9. The display device according to claim 8, wherein, The driving control module is configured to provide gate driving signals, data driving signals, and driving voltages.

10. The display device according to claim 1, wherein, The display panel further has a non-display area, and at least part of the structure of the driving unit is located in the non-display area.

11. The display device according to claim 1, wherein, The display panel includes display units, the driving unit further includes a data driving module and a gate driving module, and the data driving module and the gate driving module are connected to the display units.

12. A display device, the display device including a display means; The display device has intersecting first and second directions, the display device comprising: A display panel having n display windows along the first direction, the display windows extending along the second direction; each of the display windows has m display areas along the second direction, where n≥0, m≥0, n and m are integers, and they are not both 0 at the same time; and A driving unit configured to control and change the refresh frequency when the display areas display images.

13. The display device according to claim 12, wherein, The driving unit includes a control module, the control module is connected to the display windows in a one-to-one correspondence, and the number of the control modules is not greater than n.

14. The display device according to claim 13, wherein, The control module is configured to provide control signals to the display windows; In response to the control of the control signals, the refresh frequencies of the display windows are partially the same or different from each other.

15. The display device according to claim 13, wherein, The control module is configured to provide control signals to the display windows; In response to the control signals provided by the control module being in a proportional relationship, the refresh frequencies of the display windows are in a proportional relationship.

16. The display device according to claim 12, wherein, The driving part includes a driving control module, the driving control module is connected to the display area, and the number of the driving control modules is not greater than m.

17. The display device according to claim 16, wherein, The driving control module is connected to the display area one by one; or, A plurality of the display areas are connected to one driving control module.

18. The display device according to claim 16 or 17, wherein, The driving control module is configured to provide a refresh signal to the display area; In response to the control of the refresh signal, the refresh frequencies of the respective display areas are partially the same or different from each other.

19. The display device according to claim 16 or 17, wherein, The driving control module includes a source driving circuit, a gate driving circuit, and a data driving circuit.

20. The display device according to claim 19, wherein, The driving control module is configured to provide a gate driving signal, a data driving signal, and a driving voltage.

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