Display module, device, method and computer program product

Abstract

The application relates to the technical field of near-eye display, and discloses a display module, a device, a method and a computer program product. The display module comprises a display panel, pixel units used for constituting a display area and arranged in an array, and a pixel driving circuit arranged correspondingly to the pixel units; and a control unit configured to receive a frame image signal of a current frame image, generate a data signal according to the frame image signal, and control the pixel driving circuit according to a central visual area of a user, so that the pixel units display the current frame image based on the data signal. Compared with the existing display mode of sequentially lighting row by row, the application can prevent the overlap of the content of a previous frame and the content of a next frame, and make the central visual area of the screen emit light at the same time, thereby improving the display quality and enhancing the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of near-eye display, in particular to a display module, device, method and computer program product. BACKGROUND

[0002] At present, wearable devices such as virtual reality (VR), mixed reality (MR) and augmented reality (AR) can bring users immersive experience through near-eye display technology, that is, near-eye display is realized through internal silicon-based organic light emitting diode (OLED).

[0003] When driving the silicon-based OLED, a pulse modulation light emitting mode is generally adopted, that is, when each row of pixels in the display area displays a frame of image, the data of each row of pixels is written into the buffer in a row-by-row driving manner, and then the pixels are immediately controlled to light up and continuously emit light for a certain time length (for example, the time length can be controlled to be 20% of a frame time length). This mode will cause the phenomenon that the content of the previous frame overlaps with the content of the next frame, that is, when displaying the content of the next frame, the last few rows of pixels at the bottom are still displaying the content of the previous frame, but the first few rows of pixels at the top have already started to write and display the content of the next frame, which is called "ghost" phenomenon, that is, display misplacement. At the same time, due to the persistence of vision, that is, when observing rapidly changing images, the visual system's perception of the image does not disappear immediately, but remains on the retina for a period of time, and then when the user wears the wearable device and moves quickly (such as shaking the head), the display screen will have a delay between the light emission and display of different rows, resulting in display misplacement or "perceived misplacement", thereby causing visual distortion error, which is also called jelly effect, resulting in poor display quality and affecting user experience. SUMMARY

[0004] The main purpose of the present application is to provide a display module, device, method and computer program product, which aims to solve the technical problem that when the existing silicon-based OLED is driven by the pulse modulation light emitting mode, the phenomenon that the content of the previous frame overlaps with the content of the next frame occurs due to the row-by-row lighting, thereby resulting in poor display quality and affecting user experience.

[0005] To achieve the above purpose, the present application provides a display module, which comprises:

[0006] a display panel comprising pixel units arranged in an array for constituting a display area, and a pixel driving circuit corresponding to the pixel units;

[0007] a control unit configured to receive a frame image signal of a current frame image, generate a data signal according to the frame image signal, and control the pixel driving circuit according to a central vision area of a user, so that the pixel units display the current frame image based on the data signal;

[0008] wherein when the pixel units display the current frame image based on the data signal, the pixel units in a first display area including the central vision area have the same light-emitting period, and the remaining pixel units have different light-emitting periods from the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest during display of the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest during display of a previous frame image.

[0009] In an embodiment, the control unit comprises:

[0010] a display driving module configured to generate a data signal, a first control signal, and a second control signal according to the frame image signal, and generate a third control signal according to received central vision area information generated based on the central vision area of the user;

[0011] a data driving circuit configured to transmit the data signal to a data line of each of the pixel units according to the first control signal;

[0012] a write control driving circuit configured to write the data signal transmitted by the data line into a corresponding row of the pixel units based on the second control signal;

[0013] a light-emitting control circuit configured to generate a light-emitting signal based on the third control signal, and transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the pixel units in the first display area to have the same light-emitting period, and controls the remaining pixel units to have different light-emitting periods from the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest during display of the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest during display of a previous frame image.

[0014] In an embodiment, the display driving module is further configured to generate a compensation value for a corresponding row of the pixel units according to the frame image signal and the central vision area information, and compensate the data signal by each of the compensation values;

[0015] The data driving circuit is further configured to transmit the compensated data signal to a data line of each of the pixel units according to the first control signal.

[0016] In an embodiment, the display driving module is further configured to determine, according to the central vision area information, a light-emitting period of each row of the pixel units according to a first preset mapping relationship, and generate a third control signal according to each light-emitting period.

[0017] In an embodiment, the light-emitting control circuit is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light earlier and / or later than the pixel units in the first display area when the pixel units display the current frame image based on the data signal.

[0018] In an embodiment, the light-emitting control circuit is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light simultaneously or sequentially when the pixel units display the current frame image based on the data signal.

[0019] In addition, to achieve the above object, the present application also provides a display device comprising an application processor and a display module as described above.

[0020] The application processor is configured to obtain a current position of a central vision area of a user in the display area when the display module displays a current frame image, and generate a frame image signal of a next frame image according to the current position.

[0021] In an embodiment, the application processor comprises:

[0022] An eye movement tracking module is configured to determine a current position of a central vision area of a user in the display area when the display module displays a current frame image.

[0023] A prediction module is configured to predict a predicted position of the central vision area of the user in the display area when the display module displays a next frame image according to the current position.

[0024] A judgment module is configured to judge whether the predicted position is in a preset upper half partition or a preset lower half partition of the display area.

[0025] A signal generation module is configured to determine a target time according to a second preset mapping relationship based on a judgment result.

[0026] An image rendering module is configured to render a frame image at the target time in a next frame image to obtain a frame image signal of the next frame image.

[0027] In an embodiment, the signal generation module is further configured to generate central vision area information based on the judgment result.

[0028] Further, in order to achieve the above object, the present application also provides a display method, which is applied to the display device as described above, and the method comprises:

[0029] The application processor acquires the current position of the central vision area of the user in the display area when the display module displays the current frame image, and generates a frame image signal of the next frame image according to the current position;

[0030] The display module receives the frame image signal of the current frame image, generates a data signal according to the frame image signal, and controls the pixel driving circuit according to the central vision area of the user, so that the pixel unit displays the current frame image based on the data signal;

[0031] When the pixel unit displays the current frame image based on the data signal, the pixel unit in the first display area including the central vision area has the same light-emitting period, and the light-emitting period of the remaining pixel units is different from that of the pixel unit in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed.

[0032] Further, in order to achieve the above object, the present application also provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to realize the steps of the display method as described above.

[0033] The application provides a display module, device, method and computer program product. The display module comprises: a display panel comprising pixel units arranged in an array for constituting a display area and pixel driving circuits arranged correspondingly to the pixel units; and a control unit configured to receive a frame image signal of a current frame image, generate a data signal according to the frame image signal, and control the pixel driving circuits according to a central visual area of a user, so that the pixel units display the current frame image based on the data signal; wherein when the pixel units display the current frame image based on the data signal, the pixel units in a first display area comprising the central visual area have the same light-emitting period, and the light-emitting periods of the remaining pixel units are different from the light-emitting period of the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when a previous frame image is displayed. Since the pixel units in the display module of the application display the current frame image, the control unit can control the pixel driving circuits according to the central visual area of the user, so that the pixel driving circuits control the pixel units in the first display area comprising the central visual area to have the same light-emitting period, the light-emitting periods of the remaining pixel units are different from the light-emitting period of the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed. Compared with the existing display mode of sequentially lighting row by row, the application can control the pixel units in the first display area comprising the central visual area to have the same light-emitting period, the light-emitting periods of the remaining pixel units are different from the light-emitting period of the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed, thereby preventing the overlap of the previous frame content and the next frame content, making the central visual area of the screen emit light at the same time, and improving the display quality and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced here. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0036] FIG. 1 System overall structure schematic diagram of VR, MR or AR head-mounted wearable device;

[0037] FIG. 2 A light emitting period diagram for driving a silicon-based OLED in a traditional pulse modulation light emitting mode;

[0038] FIG. 3 A visual error diagram due to a jelly effect;

[0039] FIG. 4 A structural diagram of a first embodiment of a display module of the present application;

[0040] FIG. 5 A display diagram of the first embodiment of the display module of the present application;

[0041] FIG. 6 A display area division diagram of a second embodiment of the display module of the present application;

[0042] FIG. 7 A display diagram of the second embodiment of the display module of the present application;

[0043] FIG. 8 Another display diagram of the second embodiment of the display module of the present application;

[0044] FIG. 9 Still another display diagram of the second embodiment of the display module of the present application;

[0045] FIG. 10 Still another display diagram of the second embodiment of the display module of the present application;

[0046] FIG. 11 A voltage compensation diagram of a third embodiment of the display module of the present application;

[0047] FIG. 12 A structural diagram of a first embodiment of a display device of the present application;

[0048] FIG. 13 A flow diagram of a first embodiment of a display method of the present application.

[0049] Explanation of the reference signs:

[0050] Reference signs Names Reference signs Names 11 image rendering module 21 display panel 12 head motion tracking module 22 data driving circuit 13 eye tracking module 23 row driver 14 time warp module 231 write control driving circuit 15 prediction module 232 light emission control circuit 16 judgment module 24 display driving module 17 signal generation module

[0051] The implementation, functional features and advantages of the present application will be further explained with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein merely exemplify the present application and do not limit the present application.

[0053] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0054] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0055] In addition, the descriptions involving “first”, “second” and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of those of ordinary skill in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0056] It can be understood that in recent years, with the development of metaverse technology, wearable devices such as virtual reality (VR), mixed reality (MR) and augmented reality (AR) can bring users an immersive experience through near-eye display technology. At the same time, in near-eye display, there are gradually increasing requirements for high resolution, high refresh rate, large field of view and clarity, so as to improve the immersive experience and viewing effect of the wearer, and therefore the display technology in the above wearable devices becomes a breakthrough point that needs to be continuously broken through. The silicon-based organic light emitting diode (OLED) gradually gets widely used in near-eye display technology due to its advantages of self-emission, fast response speed, high contrast, high color gamut and low power consumption.

[0057] Referring to FIG. 1 , FIG. 1 The system overall structure diagram of the VR, MR or AR head-mounted wearable device is shown in FIG. 1, which can include an application processor (AP) and a display module (i.e. FIG. 1 FIG. 1 ​The AP can be connected to the display module through an interface (i.e. FIG. 1 for data transmission.

[0058] The AP can mainly include an image rendering module 11 (i.e. FIG. 1 Render), a head motion tracking module 12 (i.e. FIG. 1 Motion tracker), an eye tracking module 13 (i.e. FIG. 1 Eye tracker), and a time warp module 14 (i.e. FIG. 1 Time wrap); the head motion tracking module 12 can be provided with a sensor for collecting the head posture of the user, and the posture information collected is transmitted to the image rendering module 11 and the time warp module 14. The image rendering module 11 can obtain the content to be displayed, and perform predictive rendering on each image frame according to the posture information, and transmit the rendering result to the time warp module 14. The time warp module 14 further corrects the rendering result according to the posture information, and transmits the corrected result to the display module through the interface.

[0059] The display module can mainly include a display panel 21 (i.e. FIG. 1 Display panel) and a control unit, wherein the control unit can include a data driving circuit 22 (i.e. FIG. 1 Source driver), a row driver 23 (i.e. FIG. 1 GOA), and a display driving module 24 (i.e. FIG. 2 Control unit); after the time warp module 14 transmits the corrected result to the display panel 21 through the interface, the light-emitting period corresponding to each pixel unit is determined, and the display driving module 24 controls the data driving circuit 22 and the row driver 23 to drive each row of pixels according to the light-emitting period and the corresponding image data, so that the display panel 21 displays the corresponding image.

[0060] When driving the silicon-based OLED, the display driving module 24 generally adopts a pulse modulation light-emitting mode, that is, when each row of pixels in the display area displays a frame of image, the data is written to the buffer zone in turn according to the row-by-row driving mode, and then the light-emitting is controlled and lasts for a certain time (for example, the light-emitting time can be controlled to be 20% of the frame time).

[0061] Referring to FIG. 2 , FIG. 2 is a schematic diagram of the light-emitting period of the traditional pulse modulation light-emitting mode for driving the silicon-based OLED. As FIG. 2As shown, the light-emitting period of two adjacent frames is shown, the horizontal coordinate is time (i.e. FIG. 2 Time), 100% is one frame (i.e. FIG. 2 Frame), and the vertical coordinate is each row of pixel units in the display area of the display panel 21, from top to bottom, the first row of pixel units (i.e. FIG. 2 the first line) to the last row of pixel units (i.e. FIG. 2 the last line), and the number of specific row pixel units is not limited in the embodiment.

[0062] When driving the silicon-based OLED based on the pulse modulation light-emitting mode, the time warping module 14 transmits the correction result to the display panel 21, and the process of writing the image row data into the pixel units through the display driving circuit 22 under the control of the display driving module 24 can correspond to FIG. 2 process 301 (i.e. FIG. 2 Data updata), that is, sequentially transmitting and writing data to the first row of pixel units to the subsequent row of pixel units in time sequence, so the process 301 can be a diagonal line process. The process of the display driving module 24 controlling each row of pixel units to light and display is FIG. 2 process 302 (i.e. FIG. 2 Emission), that is, when the data writing of a row of pixel units is completed, the display driving module 24 can immediately or after a period of time control it to light and emit for a certain period of time, FIG. 3 which is 20% of one frame period, and of course can be other time length, which is not limited in the embodiment.

[0063] And it is not difficult to see from FIG. 3 that this way will cause the phenomenon of overlapping the content of the previous frame and the content of the next frame (i.e. FIG. 3 Display overlap), which corresponds to FIG. 3 process 303, that is, when displaying the next frame data, the bottom part of the row of pixel units in the display area is still displaying the content of the previous frame, but the top part of the row of pixel units has begun to write and light the content of the next frame, when displaying fast-moving objects, due to the large delay between row displays, there is overlapping of display content between different frames, which will cause the "ghost" phenomenon, that is, the misalignment of display, reducing the display quality.

[0064] Simultaneously, due to the persistence of vision—that is, when the human eye observes a rapidly changing image, the visual system's perception of the image does not immediately disappear but remains on the retina for a period of time—when a user wearing a wearable device moves rapidly (e.g., shaking their head), the display image exhibits display misalignment or "perceptual misalignment" due to the delay in light emission between different lines. This visual distortion error caused by display misalignment or "perceptual misalignment" is also known as the rolling shutter effect. (Refer to...) FIG. 3 , FIG. 3 This is a diagram illustrating the visual error caused by the jelly effect. (Example:) FIG. 3 As shown, where FIG. 3 Figure (a) shows a diagram illustrating a stationary object in space whose head moves rapidly to the left. FIG. 4 to FIG. 10 (b) is a schematic diagram showing a stationary object in space with its head moving rapidly to the right; FIG. 4 4011 and 4012 are both display areas. If the displayed content is a rapidly moving vertical line, FIG. 4 Both 4021 and 4022 represent ideal display effects. Assuming pixel unit refresh is from top to bottom, if the head moves rapidly to the left during the refresh process, the human eye will perceive the line as tilting to the right, resulting in... FIG. 4 In scenario 4031, if the head moves rapidly to the right, the human eye will perceive the straight line as tilting to the left, forming... FIG. 4 In scenario 4032, it can be seen that the displayed object tilts due to display misalignment or "perceptual misalignment," causing visual distortion error and reducing display quality. This problem is also known as the jelly effect, resulting in poor display quality and affecting user experience.

[0065] Therefore, to address the aforementioned shortcomings, this embodiment provides a display module. In this module, when displaying the current frame image, the control unit can control the pixel driving circuit according to the user's central visual area. This ensures that the pixel driving circuit controls the pixel units within a first display area, including the central visual area, to have the same illumination period, while the illumination periods of the remaining pixel units differ from those within the first display area. Furthermore, the earliest illuminating pixel unit in the current frame image starts illuminating later than the latest illuminating pixel unit in the previous frame image. Compared to existing methods that sequentially illuminate line by line, this embodiment ensures that the pixel units within the first display area, including the central visual area, have the same illumination period, while the illumination periods of the remaining pixel units differ. Additionally, the earliest illuminating pixel unit in the current frame image starts illuminating later than the latest illuminating pixel unit in the previous frame image, preventing overlap between the previous and next frame content and ensuring simultaneous illumination of the central visual area on the screen, thereby improving display quality and enhancing the user experience.

[0066] For ease of understanding, the following is combined with FIG. 4 The display module provided in the embodiments of this application will be described in detail.

[0067] Reference FIG. 4 , FIG. 5 This is a schematic diagram of the structure of the first embodiment of the display module of this application. The first embodiment of the display module of this application is presented as follows: FIG. 5 As shown, in this embodiment, the display module includes:

[0068] The display panel 21 includes pixel units arranged in an array to form a display area, and pixel driving circuits corresponding to the pixel units.

[0069] It should be noted that the display module in this embodiment can be a display module for near-eye display on a head-mounted wearable device, but it can also be a display module for display on other devices; this embodiment does not limit this. Specifically, the specific structure of the display module in this embodiment can be... FIG. 5 The form shown can, of course, be other forms as well; this embodiment uses... FIG. 5 Explained in the form of [formula missing].

[0070] Understandably, the aforementioned display area can be... FIG. 5 The area in the display panel 21 used for displaying the image, the above-mentioned pixel unit can be the unit used for display in the display panel 21. In this embodiment, the above-mentioned pixel unit may include a capacitor and a light-emitting diode. The display is completed by discharging the light-emitting diode through the capacitor. In this embodiment, a number of pixel units can be provided in the display panel 21, and each pixel unit is arranged in an array. This is consistent with the layout structure of each pixel unit in the existing display panel 21. This embodiment will not elaborate on this.

[0071] It should be understood that the aforementioned pixel driving circuit can be a circuit used to drive pixel units to light up, and may include several switching transistors, etc. The charging and discharging of the capacitor is realized through the cooperation of each switching transistor, thereby completing the display. In this embodiment, the aforementioned pixel driving circuit can also be consistent with the pixel driving circuit structure in the existing display panel 21, and this embodiment will not elaborate on it.

[0072] The control unit is configured to receive a frame image signal of the current frame image, generate a data signal based on the frame image signal, and control the pixel driving circuit according to the user's central visual area so that the pixel unit displays the current frame image based on the data signal.

[0073] It should be noted that the control unit in the embodiment can also be consistent with the structure of the existing control unit, and can include a display driving module 24, a data driving circuit 22, and a row driver 23. The display driving module 24 is connected with the row driver 23 and the data driving circuit 22 respectively, and the row driver 23 and the data driving circuit 22 can be connected with the display panel 21.

[0074] The current frame image can be a frame image displayed by the current display panel 21, the frame image signal can be a signal generated by the application processor when the display panel 21 needs to display the frame image, and the digital signal can be a signal corresponding to the control unit when the control unit controls the display panel 21 to display the frame image.

[0075] The central vision area can be an area where the user's eyeball gazes in the display area. In the application of VR, AR and MR products, in order to reduce the amount of data transmitted by the calculation power consumption, considering the characteristics of the human eye, the display area can be generally divided into a central vision area (foveal) and a peripheral vision area (peripheral), and the central vision area can provide more detailed visual content. While FIG. 5 The eye movement tracking module 13 in the application processor can collect the central vision area of the user.

[0076] It should be noted that, when the pixel units display the current frame image based on the data signal in the embodiment, the light-emitting period of the pixel units in the first display area including the central vision area is the same, and the light-emitting period of the remaining pixel units is different from that of the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed.

[0077] For ease of understanding, the following FIG. 5 will be described with reference to the accompanying drawings, FIG. 5 a display diagram in the first embodiment of the display module of the present application is shown in FIG. 1, which still shows two adjacent frames for illustration, FIG. 5 As shown, when the pixel units display the current frame image, the central vision area is shown as foveal in FIG. 5 If the pixel units in a preset range including the central vision area in the display area (i.e. Display panel in FIG. 5 ) are marked as the first display area (the preset range can be set according to the actual situation, and the present embodiment uses 75% for illustration, i.e. the area between the first line and the 3 / 4 line in FIG. 4 ), the control unit can control the light-emitting period of the pixel units in the first display area to be the same, i.e. FIG. 4Emission1, and controls the light-emitting period of the remaining pixel units in the display area (i.e. FIG. 6 Emission2) is different from the light-emitting period of the pixel units in the first display area. FIG. 6

[0078] The start light-emitting time point can be the time point at which the pixel unit starts to emit light, and the end light-emitting time point can be the time point at which the pixel unit ends to emit light. In the embodiment, the control unit can also control the start light-emitting time point of the pixel unit that emits light earliest in displaying the current frame image to be later than the end light-emitting time point of the pixel unit that emits light latest in displaying the previous frame image, while there are some pixel units that emit light simultaneously in the display area. In the case of ensuring that the pixel units in a row emit light continuously, if the duration of the continuous light-emitting of the pixel units in a row is 20% of a frame period, there can be a black insertion period (i.e. FIG. 6 Emission2) between the time point at which the pixel unit in the last row in the first frame ends to emit light and the time point at which the pixel unit in the first row in the second frame starts to emit light, as long as the duration of the black insertion period is greater than or equal to 0 and less than or equal to 60% of a frame period (since there are some pixel units that emit light of the previous frame image and some pixel units that emit light of the current frame image in a frame), so that the content of the previous frame and the content of the next frame do not overlap, thereby improving the display quality and enhancing the user experience.

[0079] Further, in the embodiment, the control unit includes:

[0080] The display driving module 24 is configured to generate a data signal, a first control signal and a second control signal according to the frame image signal, and generate a third control signal according to the received central vision area information, which is generated based on the central vision area of the user.

[0081] The data driving circuit 22 is configured to transmit the data signal to the data line of each pixel unit according to the first control signal.

[0082] The write control driving circuit 231 is configured to write the data signal transmitted by the data line into the corresponding row of pixel units based on the second control signal.

[0083] ​The light-emitting control circuit 232 is configured to generate a light-emitting signal based on the third control signal and transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the pixel units in the first display area to have the same light-emitting period and the remaining pixel units to have the light-emitting period different from that of the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest in displaying the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest in displaying the previous frame image.

[0084] It should be noted that the central vision area information can be information about the position of the central vision area of the user in the display area. In displaying the current frame image, the application processor can render the content to be displayed of the current frame to obtain the frame image signal corresponding to the current frame image and transmit the frame image signal to the display driving module 24 in displaying the previous frame image. Meanwhile, the application processor can collect the position of the central vision area of the user in the display area by the internal eye movement tracking module 13 in displaying the previous frame image, predict the position of the central vision area of the current frame, and then generate the central vision area information and transmit the central vision area information to the display driving module 24.

[0085] When the display driving module 24 receives the frame image signal of the application processor, the display driving module 24 can generate the data signal, the first control signal, and the second control signal, and simultaneously generate the third control signal according to the central vision area information. Then, the display driving module 24 can transmit the first control signal to the data driving circuit 22, and the data driving circuit 22 can send the data signal to the data line corresponding to each pixel unit when receiving the first control signal. Meanwhile, the display driving module 24 can also transmit the generated second control signal to the write control driving circuit 231, and the write control driving circuit 231 can write the data signal in the data line into the pixel units in a corresponding row after receiving the second control signal. Specifically, the write control driving circuit 231 can charge the capacitor in the pixel unit (which can correspond to the Data update process). FIG. 6 After the capacitor is charged, the display driving circuit can transmit the generated third control signal to the light-emitting control circuit 232, and the light-emitting control circuit 232 can generate a light-emitting signal based on the third control signal. The light-emitting signal can be a signal for controlling the light-emitting period of each pixel unit. The light-emitting control circuit 232 can transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit turns on the corresponding switch tube to make each pixel unit emit light according to the light-emitting signal. FIG. 7 to FIG. 9The display is shown in the manner that the pixel units in the first display area emit light for the same period, the remaining pixel units emit light for different periods than the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest in displaying the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest in displaying the previous frame image.

[0086] The embodiment shows that, when the pixel units in the display module display the current frame image, the control unit can control the pixel driving circuit according to the central vision area of the user, so that the pixel driving circuit controls the pixel units in the first display area including the central vision area to emit light for the same period, the remaining pixel units emit light for different periods than the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest in displaying the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest in displaying the previous frame image. Compared with the existing display by sequentially lighting each row, the embodiment can make the pixel units in the first display area including the central vision area emit light for the same period, the remaining pixel units emit light for different periods than the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest in displaying the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest in displaying the previous frame image, prevent the overlap of the previous frame content and the next frame content, and make the central vision area on the screen emit light at the same time, thereby improving the display quality and enhancing the user experience.

[0087] Meanwhile, the traditional way to prevent content overlap is to speed up data transmission and writing, and compress data transmission and writing time, so as to leave time for all rows to emit light at the same time in a frame period, so as to reduce or eliminate the delay of light emission and display between different rows of pixels. However, as the resolution of the silicon-based OLED product gradually increases, it is challenging to improve the screen refresh rate or speed up the data transmission and writing speed. The embodiment adjusts the light-emitting time of the pixel units without changing the data transmission and writing speed and the refresh rate, thereby improving the display quality and enhancing the user experience.

[0088] Continuing to refer to FIG. 7 , and based on the above first embodiment, the second embodiment of the display module of the present application is proposed, in order to generate the above third control signal, so that the light-emitting time of the pixel units in the first display area is the same, as shown in FIG. 8 In the embodiment, the display driving module 24 is further configured to determine the light-emitting period of each row of pixel units according to the first preset mapping relationship according to the central vision area information, and generate a third control signal according to each light-emitting period.

[0089] It should be noted that the aforementioned first preset mapping relationship can be the relationship between the light emission time periods of different pixel units corresponding to different positions of the central visual area within the display area.

[0090] In this embodiment, the display area can be pre-divided into upper and lower halves based on the middle row pixel units of the display area, referring to... FIG. 9 , FIG. 5 This is a schematic diagram illustrating the display area division in the second embodiment of the display module of this application. For example... FIG. 7 As shown, the display area is 801, and the middle row pixel unit in the display area is 802. Assuming the maximum number of pixel units in the central visual area does not exceed 40% of the total number of pixel units in the display area, the following two situations exist: The first is that the central visual area falls entirely in the upper half of the display area, or most of the central visual area (including half of the central visual area) falls in the upper half of the display area. That is, the middle row pixel units of the central visual area are located above the middle row pixel units in the display area. For example... FIG. 5 The first type is 803 and 804; the second type is where the central visual area falls entirely in the lower half of the display area, or where most of the central visual area (including half of the central visual area) falls in the lower half of the display area. In other words, the middle row of pixels in the central visual area is located below the middle row of pixels in the display area. For example... FIG. 7 805 and 806.

[0091] Based on the above two scenarios, this embodiment can pre-set the emission time period corresponding to each pixel unit for both scenarios, and construct the first preset mapping relationship based on the setting result. (Refer to...) FIG. 5 , FIG. 5 This is a schematic diagram of a display module in the second embodiment of this application. FIG. 5 This is another display schematic diagram in the second embodiment of the display module of this application. FIG. 7 This is another display schematic diagram of the second embodiment of the display module in this application;

[0092] Combination FIG. 7 as well as FIG. 7 ,exist FIG. 8 as well as FIG. 9 The aforementioned preset range can be set to 75%, the difference being... FIG. 8 The current central visual area (i.e. FIG. 9 The foveal falls in the upper half of the display area, thus dividing the upper 75% of the display area into one group and the lower 25% into another, and setting the pixel units in the upper 75% of the display area to have the same emission time (i.e., FIG. 8In the middle Emission1), the pixel units in the lower 25% area are set to have different light-emitting periods from the upper 75%, and specifically, the pixel units in the lower 25% area can emit light row by row (i.e. FIG. 8 In the middle Emission2), FIG. 8 In the middle foveal, the central vision area (i.e. FIG. 9 falls in the lower half of the display area, and then the lower 75% area of the display area can be divided into one group and the upper 25% area of the display area can be divided into another group, and the pixel units in the lower 75% area of the display area are set to have the same light-emitting period (i.e. FIG. 9 In the middle Emission1), the pixel units in the upper 25% area are set to have different light-emitting periods from the lower 75%, and specifically, the pixel units in the upper 25% area can emit light row by row (i.e. FIG. 9 In the middle Emission2).

[0093] As another implementation manner, as shown in FIG. 5 and FIG. 7 to FIG. 9 , the above preset range can be set to 75% in FIG. 5 and FIG. 8 , and the difference lies in that FIG. 7 In the middle, the pixel units in the upper 75% area of the display area are set to have the same light-emitting period (i.e. FIG. 9 In the middle Emission1), the pixel units in the lower 25% area are set to have different light-emitting periods from the upper 75%, and specifically, the pixel units in the lower 25% area are also set to have the same light-emitting period (i.e. FIG. 10 In the middle Emission2), FIG. 10 In the middle, the pixel units in the lower 75% area of the display area are set to have the same light-emitting period (i.e. FIG. 10 In the middle Emission1), the pixel units in the upper 25% area are set to have different light-emitting periods from the lower 75%, and specifically, the pixel units in the upper 25% area are also set to have the same light-emitting period (i.e. FIG. 10 In the middle Emission2).

[0094] It should be emphasized that the specific preset range and the number of division results can be set by the actual situation, and the embodiment does not limit this.

[0095] According to the above, in actual use, the light-emitting time period corresponding to each pixel unit can be set in advance according to the position of the central visual field region, it is only necessary to ensure that the light-emitting time period of the pixel units in the first display region is the same, and the light-emitting time period of the remaining pixel units is different from the light-emitting time period of the pixel units in the first display region; and the starting light-emitting time of the pixel unit that emits light earliest in displaying the current frame image is later than the ending light-emitting time of the pixel unit that emits light latest in displaying the previous frame image, so as to obtain the first preset mapping relationship.

[0096] In use, the display driving module 24 can determine the position of the central visual field region after obtaining the predicted central visual field region information, and query the first preset mapping relationship constructed in advance, so as to determine the light-emitting time period of each pixel unit, and generate the third control signal according to the light-emitting time period and transmit it to the light-emitting control circuit 232.

[0097] Further, in order to make the light-emitting time period of the pixel units in the first display region the same, and the light-emitting time period of the remaining pixel units different from the light-emitting time period of the pixel units in the first display region, the above FIG. 10 and FIG. 10 In this embodiment, the light-emitting control circuit 232 is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the light-emitting time period of the remaining pixel units to be earlier and / or later than the light-emitting time period of the pixel units in the first display region when the pixel units display the current frame image based on the data signal.

[0098] It can be understood that, in this embodiment, the light-emitting control circuit 232 can generate a light-emitting signal after receiving the third control signal. Since the third control signal can make the light-emitting time period of the pixel units in the first display region the same, and the light-emitting time period of the remaining pixel units different from the light-emitting time period of the pixel units in the first display region, the light-emitting control circuit 232 can make the light-emitting time period of the remaining pixel units earlier and / or later than the light-emitting time period of the pixel units in the first display region when transmitting the generated light-emitting signal to the pixel driving circuit.

[0099] wherein, FIG. 10 and FIG. 10 is the case that the light-emitting time period of the remaining pixel units is later than the light-emitting time period of the pixel units in the first display region, FIG. 10 and FIG. 5 is the case that the light-emitting time period of the remaining pixel units is earlier than the light-emitting time period of the pixel units in the first display region;

[0100] For the cases that the light-emitting time period of the remaining pixel units is earlier and later than the light-emitting time period of the pixel units in the first display region, specific reference can be made toFIG. 7 , FIG. 8 Fig. 6 shows another display diagram in the second embodiment of the display module of the present application. As shown in Fig. 6, in order to improve the display effect, the preset range can not only be divided into 75%, but also can be divided into less than 75% (for example, 50% as shown in Fig. 6). When the central vision area is located in the middle of the display area (i.e. between the 1 / 4 line and the 3 / 4 line in Fig. 6), the simultaneous light-emitting period of the pixel units in the middle area in the first preset mapping relationship can be set to be the same (i.e. corresponding to the period of Emission1 in Fig. 6), for the area above the middle area (i.e. between the first line and the 1 / 4 line in Fig. 6), the light-emitting period of the pixel units in the area can be set to be earlier than the simultaneous light-emitting period of the pixel units in the middle area (i.e. corresponding to the period of Emission2 in Fig. 6), and for the area below the middle area (i.e. between the 3 / 4 line and the last line in Fig. 6), the light-emitting period of the pixel units in the area can be set to be later than the simultaneous light-emitting period of the pixel units in the middle area (i.e. corresponding to the period of Emission3 in Fig. 6). FIG. 9 FIG. 11 FIG. 11 FIG. 11 FIG. 11 FIG. 11 FIG. 12 FIG. 12

[0101] It should be emphasized that the preset range and the first preset mapping relationship can be set according to actual conditions, and the present embodiment does not limit this.

[0102] Further, in the present embodiment, the light-emitting control circuit 232 is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light simultaneously or sequentially when the pixel unit displays the current frame image based on the data signal.

[0103] As shown in Fig. 7, the remaining pixel units emit light sequentially, and as shown in Fig. 8, the remaining pixel units emit light simultaneously. FIG. 12 FIG. 12 As shown in Fig. 7, the remaining pixel units emit light sequentially, and as shown in Fig. 8, the remaining pixel units emit light simultaneously. FIG. 12 FIG. 12 As shown in Fig. 7, the remaining pixel units emit light sequentially, and as shown in Fig. 8, the remaining pixel units emit light simultaneously.

[0104] ​​​​​​​​​​In actual use, the remaining pixel units in the first preset mapping relationship can be configured to emit light simultaneously or sequentially, and then when the display driving module 24 determines the light-emitting time period of each pixel unit according to the first preset mapping relationship, and transmits the generated third control signal to the light-emitting control circuit 232, the light-emitting signal generated by the light-emitting control circuit 232 can make the pixel driving unit drive the remaining pixel units to emit light simultaneously or sequentially.

[0105] Referring to FIG. 12 , FIG. 12 The voltage compensation schematic diagram in the third embodiment of the display module of the present application is shown, and based on the above embodiments, the third embodiment of the display module of the present application is proposed.

[0106] Further, as FIG. 6 indicated, considering that the light-emitting time period of each pixel unit in the present embodiment is adjusted, and then the time to be maintained after charging and light-emitting is different between different rows of pixel units, resulting in different leakage current conditions between different rows of pixel units, and problems such as flickering or uneven display, in order to reduce the influence of the leakage current on the subsequent display quality, the display driving module 24 in the present embodiment can compensate the generated data signal, specifically:

[0107] The display driving module 24 is further configured to generate compensation values corresponding to each row of pixel units according to the frame image signal and the central visual field area information, and compensate the data signal through each compensation value;

[0108] The data driving circuit 22 is further configured to send the compensated data signal to the data line of each pixel unit according to the first control signal.

[0109] It should be noted that after the display driving module 24 receives the frame image signal and the central visual field area information, it can first determine the light-emitting time period of each row of pixel units according to the first preset mapping relationship (i.e. the time period corresponding to Emission1 and the time period corresponding to Emission2 in FIG. 12 ), and determine the data signal writing time of each row of pixel units according to the generated second control signal (i.e. the time corresponding to Data update in FIG. 12 ), and then determine the start light-emitting time according to the light-emitting time period of each row of pixel units, and difference between the start light-emitting time and the data signal writing time (i.e. FIG. 5The difference value is used to query a preset two-dimensional look-up table (LUT) table, the preset two-dimensional LUT table can be stored in the device in advance through measurement, and the preset two-dimensional LUT table can store compensation values corresponding to different difference values.

[0110] The compensation value can be a value of compensating the gray scale voltage of a pixel unit in a row. After obtaining the compensation value corresponding to each row of pixel units by querying the preset two-dimensional LUT table according to the difference value, since the data signal in the embodiment can be a signal corresponding to the gray scale voltage, the display driving module 24 can compensate each data signal, and after the data driving circuit 22 receives the first control signal, the compensated data signal corresponding to each row of pixel units is transmitted to the data line corresponding to each pixel unit, so that the pixel unit displays according to the compensated data signal when displaying, and the display quality is improved.

[0111] In addition, to achieve the above-mentioned purpose, the embodiment of the present application further provides a display device, which refers to FIG. 7 , FIG. 8 The structure diagram of the first embodiment of the display device of the embodiment of the present application.

[0112] As shown in FIG. 9 , in the embodiment, the display device comprises an application processor and a display module as described above;

[0113] The application processor can comprise an image rendering module 11 (i.e. Render in FIG. 13 ), a head motion tracking module 12 (i.e. Motion tracker in FIG. 13 ), an eye movement tracking module 13 (i.e. Eye tracker in FIG. 13 ), and a time warp module 14 (i.e. Time wrap in ​ ), and the head motion tracking module 12 can be provided with a sensor for collecting the head posture of the user;

[0114] First, the application processor can acquire the content to be displayed and generate a frame image signal corresponding to the current frame image based on the content to be displayed, and transmit it to the image rendering module 11. The head motion tracking module 12 can transmit the acquired posture information to the image rendering module 11 and the time warp module 14. The image rendering module 11 can render the current frame image based on the posture information to obtain the rendered frame image signal, and transmit it to the time warp module 14. The time warp module 14 then corrects the rendered frame image signal based on the posture information, and transmits the corrected frame image signal to the display driver module 24 of the display module through the interface. The display driver module 24 can then generate a data signal, a first control signal, and a second control signal based on the corrected frame image signal.

[0115] It should be emphasized that, in this embodiment, when the display module displays the current frame image, the application processor can start to determine the next frame image based on the content to be displayed, and obtain the corrected frame image signal corresponding to the next frame image according to the above steps, and then transmit it to the display driver module 24. The display driver module 24 can then generate a data signal, a first control signal and a second control signal based on the corrected frame image signal, thereby displaying the next frame image.

[0116] In addition, the application processor in this embodiment may also include an eye-tracking module 13 (i.e. ​ The eye-tracking module 13, as described above, can obtain the information needed for the next frame image to be displayed when the display module displays the current frame image. Specifically, it can collect the current position of the user's central visual area in the display area when the current frame image is displayed, thereby predicting the position of the user's central visual area in the display area when the next frame image is displayed, and transmit it to the display driver module 24 in the form of central visual area information, so that the display driver module 24 can generate a third control signal corresponding to the next frame image based on the central visual area information.

[0117] Furthermore, considering that the illumination time of different rows is not the same during driving, it is assumed that if the human eye is focused on the top or bottom area of ​​the screen, it may cause a large display error. Therefore, in order to further improve the display quality, in this embodiment, when the application processor generates the frame image signal of the next frame image, it can combine the position of the central visual area in the display area, specifically:

[0118] The application processor is configured to, when the display module displays the current frame image, obtain the current position of the user's central visual area in the display area, and generate a frame image signal for the next frame image based on the current position.

[0119] It should be noted that the current position described above can be the position of the central vision area of the user in the display area when the current frame image is displayed, which can be obtained by the eye tracking module 13 described above.

[0120] In actual use, when the display module displays the current frame image, the application processor can generate the frame image signal of the next frame image according to the content to be displayed and the current position of the central vision area in the display area.

[0121] Further, in order to obtain the frame image signal of the next frame image, as shown in the embodiment, the application processor comprises: ​

[0122] The eye tracking module 13 is configured to determine the current position of the central vision area of the user in the display area when the display module displays the current frame image.

[0123] The prediction module 15 is configured to predict the expected position of the central vision area of the user in the display area when the display module displays the next frame image according to the current position.

[0124] The judgment module 16 is configured to judge whether the expected position is in the preset upper half partition or the preset lower half partition of the display area.

[0125] The signal generation module 17 is configured to determine the target time according to the second preset mapping relationship based on the judgment result.

[0126] The image rendering module 11 is configured to render the frame image at the target time in the next frame image to obtain the frame image signal of the next frame image.

[0127] It can be understood that the expected position described above can be the position of the central vision area of the user in the display area when the next frame image is displayed. The preset upper half partition described above can be the partition corresponding to the upper half of the display area, and the preset lower half partition described above can be the partition corresponding to the lower half of the display area, i.e. ​ the upper half area and the lower half area corresponding to 802.

[0128] In actual use, after the eye tracking module 13 obtains the current position of the central vision area of the user in the display area, it can be transmitted to the prediction module 15 (i.e. ​ prediction in the middle), and a prediction algorithm can be set in the prediction module 15. According to the current position, the prediction algorithm can predict the position of the central vision area of the user in the display area when the display module displays the next frame image as the expected position described above, and transmit it to the judgment module 16 (i.e. ​ ​When the judgment module 16 judges that the predicted position is in the upper half partition, the judgment module 16 judges whether the predicted position is in the upper quarter partition or the lower quarter partition according to the second preset mapping relationship, and obtains a judgment result.

[0129] It should be understood that the second preset mapping relationship described above can be a mapping relationship between the partition in which the predicted position is located and a target moment, which can be a moment with better display quality in the simultaneous light-emitting period. In this embodiment, the middle moment of the simultaneous light-emitting period is used for illustration.

[0130] That is, in actual use, when the signal generation module 17 obtains the judgment result, the target moment can be determined according to the second preset mapping relationship, for example, the t1 moment in the above formula (2) can be the target moment, or the t2 moment in the above formula (3) can be the target moment, or the t1 moment in the above formula (4) can be the target moment, or the t2 moment in the above formula (5) can be the target moment. ​ ​ ​ ​ In this embodiment, the t1 moment in the above formula (2) is used for illustration. After the target moment is obtained, the target moment is transmitted to the image rendering module 11. The image rendering module 11 can render the frame image corresponding to the target moment in the next frame image, obtain the frame image signal of the next frame image, and perform correction and other operations through the time warping module 14, and then transmit the frame image signal to the display driving module 24. Thus, when the next frame image is displayed, the frame image corresponding to the target moment (i.e., t1 or t2) is actually displayed, thereby reducing the display error caused by the human eye gazing at the top or bottom area of the screen and improving the display quality.

[0131] Further, the signal generation module 17 is further configured to generate central vision area information based on the judgment result.

[0132] When the signal generation module 17 receives the judgment result, the central vision area information can also be generated and directly transmitted to the display driving module 24, so that the display driving module 24 can generate a third control signal according to the central vision area information.

[0133] It should be emphasized that the specific implementation mode of the display module in the display device described in the present application can refer to the above-described embodiments of the display module, which will not be described here again.

[0134] In addition, in order to achieve the above-mentioned purpose, the embodiments of the present application also provide a display method. Referring to ​ , ​ The flowchart of the first embodiment of the display method of the present application is shown.

[0135] As shown in ​ , in this embodiment, the display method is applied to the display device as described above. The method comprises:

[0136] ​​​Step S10: obtaining, by the application processor, a current position of the central vision area of the user in the display area when the display module displays the current frame image, and generating a frame image signal of the next frame image according to the current position;

[0137] Step S20: receiving, by the display module, the frame image signal of the current frame image, generating a data signal according to the frame image signal, and controlling the pixel driving circuit according to the central vision area of the user, so that the pixel units display the current frame image based on the data signal;

[0138] When the pixel units display the current frame image based on the data signal, the pixel units in a first display area including the central vision area have the same light-emitting period, and the remaining pixel units have different light-emitting periods from the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed.

[0139] In the display module, when the pixel units display the current frame image, the control unit can control the pixel driving circuit according to the central vision area of the user, so that the pixel driving circuit controls the pixel units in a first display area including the central vision area to have the same light-emitting period, and the remaining pixel units to have different light-emitting periods from the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed. Compared with the existing display method of sequentially lighting row by row, the pixel units in the first display area including the central vision area have the same light-emitting period, and the remaining pixel units have different light-emitting periods from the pixel units in the first display area, and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when the previous frame image is displayed, which prevents the overlap of the previous frame content and the next frame content, and makes the central vision area on the screen emit light at the same time, thereby improving the display quality and enhancing the user experience.

[0140] As an implementation manner, the step S10 includes: determining, by the eye tracking module 13, a current position of the central vision area of the user in the display area when the display module displays the current frame image;

[0141] predicting, by the prediction module 15, a predicted position of the central vision area of the user in the display area when the display module displays the next frame image according to the current position;

[0142] The judging module 16 judges whether the predicted position is in a preset upper half partition or a preset lower half partition of the display area;

[0143] The signal generating module 17 determines the target time according to a second preset mapping relationship based on the judging result.

[0144] The image rendering module 11 renders the frame image at the target time in the next frame image to obtain a frame image signal of the next frame image.

[0145] As an implementation, after the step of determining the target time according to the second preset mapping relationship based on the judging result by the signal generating module 17, the method further includes:

[0146] The signal generating module 17 generates the central vision area information based on the judging result.

[0147] As an implementation, the step S20 includes:

[0148] The display driving module 24 generates a data signal, a first control signal and a second control signal according to the frame image signal, and generates a third control signal according to the received central vision area information, which is generated based on the central vision area of the user.

[0149] The data driving circuit 22 transmits the data signal to the data line of each pixel unit according to the first control signal.

[0150] The write control driving circuit 231 writes the data signal transmitted by the data line into the corresponding row of pixel units based on the second control signal.

[0151] The light emitting control circuit 232 generates a light emitting signal based on the third control signal and transmits the light emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the pixel units in the first display area to have the same light emitting period, and the remaining pixel units have different light emitting periods from the pixel units in the first display area; and the starting light emitting time of the pixel unit that emits light earliest in the display of the current frame image is later than the ending light emitting time of the pixel unit that emits light latest in the display of the previous frame image.

[0152] As an implementation, the step of transmitting the data signal to the data line of each pixel unit according to the first control signal by the data driving circuit 22 includes:

[0153] The display driving module 24 generates compensation values corresponding to each row of the pixel units according to the frame image signal and the central vision area information, and compensates the data signal according to the compensation values.

[0154] The data driving circuit 22 sends the compensated data signal to the data line of each pixel unit according to the first control signal.

[0155] As an implementation form, the step of generating the third control signal according to the received central vision area information comprises:

[0156] The display driving module 24 determines the light-emitting period of each row of the pixel units according to the central vision area information and a first preset mapping relationship, and generates the third control signal according to the light-emitting period.

[0157] As an implementation form, the step of transmitting the light-emitting signal to the pixel driving circuit comprises:

[0158] The light-emitting control circuit 232 transmits the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the light-emitting period of the remaining pixel units to be earlier and / or later than the light-emitting period of the pixel units in the first display area when the pixel units display the current frame image based on the data signal.

[0159] As an implementation form, the step of transmitting the light-emitting signal to the pixel driving circuit comprises:

[0160] The light-emitting control circuit 232 transmits the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light simultaneously or sequentially when the pixel units display the current frame image based on the data signal.

[0161] It should be emphasized that the embodiments or specific implementation forms of the display method of the present application can refer to the embodiments of the display device described above, and will not be described here.

[0162] In addition, to achieve the above-mentioned purpose, the embodiments of the present application also provide a computer program product, which comprises a computer program, and the computer program is executed by a processor to realize the steps of the display method as described above.

[0163] It should be emphasized that the embodiments or specific implementation forms of the computer program product of the present application can refer to the embodiments of the display method described above, and will not be described here.

[0164] It should be noted that, in this text, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or system. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0165] The above-mentioned sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0166] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display module, characterized by The display module comprises: a display panel comprising pixel units arranged in an array for constituting a display area, and pixel driving circuits arranged correspondingly to the pixel units; a control unit configured to receive a frame image signal of a current frame image, generate a data signal according to the frame image signal, and control the pixel driving circuits according to a central visual area of a user, so that the pixel units display the current frame image based on the data signal; wherein when the pixel units display the current frame image based on the data signal, the pixel units in a first display area comprising the central visual area have the same light-emitting period, and the remaining pixel units have different light-emitting periods from the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when a previous frame image is displayed.

2. The display module of claim 1, wherein, The control unit comprises: a display driving module configured to generate a data signal, a first control signal and a second control signal according to the frame image signal, and generate a third control signal according to received central visual area information, which is generated based on the central visual area of the user; a data driving circuit configured to transmit the data signal to a data line of each pixel unit according to the first control signal; a write control driving circuit configured to write the data signal transmitted by the data line into a corresponding row of pixel units based on the second control signal; a light-emitting control circuit configured to generate a light-emitting signal based on the third control signal, and transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the pixel units in the first display area to have the same light-emitting period, and controls the remaining pixel units to have different light-emitting periods from the pixel units in the first display area; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when a previous frame image is displayed.

3. The display module of claim 2, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The display driving module is further configured to generate a compensation value for a corresponding row of pixel units according to the frame image signal and the central visual area information, and compensate the data signal by each compensation value; The data driving circuit is further configured to transmit the compensated data signal to the data line of each pixel unit according to the first control signal.

4. The display module of claim 2, wherein the display module is configured to be mounted on a display device. The display driving module is further configured to determine the light-emitting period of each row of pixel units according to a first preset mapping relationship based on the central visual area information, and generate the third control signal according to each light-emitting period.

5. The display module of claim 2, wherein the display module is configured to be mounted on a display stand. The light-emitting control circuit is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light earlier and / or later than the pixel units in the first display area when the pixel units display the current frame image based on the data signal.

6. The display module of claim 5, wherein the display module is configured to be mounted to a display module mounting surface of a display module mounting structure. The light-emitting control circuit is further configured to transmit the light-emitting signal to the pixel driving circuit, so that the pixel driving circuit controls the remaining pixel units to emit light simultaneously or sequentially when the pixel unit displays the current frame image based on the data signal.

7. A display device, characterized by comprising: The display module comprises an application processor and the display module according to any one of claims 1 to 6. The application processor is configured to acquire a current position of a central visual field region of a user in the display region when the display module displays a current frame image, and generate a frame image signal of a next frame image according to the current position.

8. The display device of claim 7, wherein, The application processor comprises: an eye movement tracking module configured to determine a current position of a central visual field region of a user in the display region when the display module displays a current frame image; a prediction module configured to predict a predicted position of the central visual field region of the user in the display region when the display module displays a next frame image according to the current position; a judgment module configured to judge whether the predicted position is in a preset upper half partition or a preset lower half partition of the display region; a signal generation module configured to determine a target time according to a second preset mapping relationship based on a judgment result; an image rendering module configured to render a frame image at the target time in a next frame image to obtain a frame image signal of the next frame image.

9. The display device of claim 8, wherein, The signal generation module is further configured to generate central visual field region information based on the judgment result.

10. A display method characterized by comprising: The display method is applied to the display device according to any one of claims 7 to 9, and the method comprises: acquiring, by the application processor, a current position of a central visual field region of a user in the display region when the display module displays a current frame image, and generating a frame image signal of a next frame image according to the current position; receiving, by the display module, a frame image signal of a current frame image, generating a data signal according to the frame image signal, and controlling a pixel driving circuit according to the central visual field region of the user, so that the pixel unit displays the current frame image based on the data signal; wherein, when the pixel unit displays the current frame image based on the data signal, the pixel units in a first display region comprising the central visual field region have the same light-emitting period, and the remaining pixel units have different light-emitting periods from the pixel units in the first display region; and the starting light-emitting time of the pixel unit that emits light earliest when the current frame image is displayed is later than the ending light-emitting time of the pixel unit that emits light latest when a previous frame image is displayed.

11. A computer program product, characterised in that, The computer program product comprises a computer program, which, when executed by a processor, implements the steps of the display method according to claim 10.

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