Display module, control method, storage medium and display device

Abstract

The invention discloses a display module, a control method, a storage medium and a display device. The display module comprises a light-emitting area, the light-emitting area comprises a plurality of pixels, and each pixel comprises a red light-emitting part, a green light-emitting part and a blue light-emitting part; and the control module is electrically connected with the light-emitting area, and the control module is configured to adjust the starting point and the ending point of the light-emitting time of the light-emitting pieces of all colors within one frame time, so that the phases of the light-emitting intervals of the red light, the green light and the blue light are relatively matched in the time sequence, and the phenomenon of color cracking is avoided or relieved. In the display module, the control module adjusts the starting point and the ending point of the light-emitting time of the light-emitting parts in each color within one frame time, so that the phases of the light-emitting intervals of the red light, the green light and the blue light are relatively matched in time sequence to avoid or relieve the phenomenon of color cracking, and the display effect is optimized to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of pixel driving technology, and in particular to a display module, control method, storage medium and display device. Background Technology

[0002] In microdisplay technology, pulse width modulation (PWM), a digital modulation method, is mostly used to control the light source (screen). However, when using head-mounted displays, the frequent and rapid eye movements during device use cause corresponding displacement between the retina and the screen. This results in spatial artifacts in the screen's temporal light modulation scheme on the retina, leading to color breakup. Summary of the Invention

[0003] The present invention provides a display module, a control method, a storage medium, and a display device to solve at least one of the aforementioned technical problems.

[0004] In a first aspect, the present invention provides a display module comprising:

[0005] The light-emitting area includes multiple pixels, and each pixel includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element;

[0006] The control module is electrically connected to the light-emitting area. The control module is configured to adjust the start and end points of the light-emitting time of each color light-emitting element within one frame, so that the phases of the light-emitting intervals of red, green and blue light are relatively matched in time sequence, so as to avoid or reduce the phenomenon of color breakage.

[0007] In the aforementioned display module, the control module adjusts the start and end points of the emission time of each color light-emitting element within one frame to match the phase of the emission intervals of red, green, and blue light in time sequence, so as to avoid or reduce the phenomenon of color breakage, thereby optimizing the display effect to a certain extent.

[0008] In some optional technical solutions of the present invention, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0009] In some optional technical solutions of the present invention, within one frame, the starting point of the light emission time of the light-emitting element with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting elements.

[0010] In some optional technical solutions of the present invention, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby making the start point of the light emission time of the light-emitting element with the shortest light emission time staggered from the start point of the light emission time of the other light-emitting elements.

[0011] In some optional technical solutions of the present invention, the control module includes a first counter, which is configured to generate grayscale count information of the light-emitting element with the shortest light-emitting time. The grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time, so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the middle of the light-emitting time of the other light-emitting elements.

[0012] In some optional technical solutions of the present invention, the adjustment amount of the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

[0013] In some optional technical solutions of the present invention, within one frame, the start and end points of the emission time of the three light-emitting elements are adjusted so that the emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0014] In some optional technical solutions of the present invention, within one frame, the start and end times of the light emission time of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0015] In some optional technical solutions of the present invention, the light emission time of each color light-emitting element is grouped within one frame time, thereby adjusting the start and end points of the light emission time of each color light-emitting element.

[0016] In some optional technical solutions of the present invention, within one frame, the light emission time of the light-emitting device with the shortest light emission time is grouped to form multiple light emission sub-times, so that the light emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0017] In some optional technical solutions of the present invention, within one frame time, the light emission time of the light-emitting element with the shortest light emission time is divided into at least two light emission sub-times.

[0018] In some optional technical solutions of the present invention, the control module includes a first counter and a second counter;

[0019] The second counter is configured to count the number of light-emitting sub-times;

[0020] The first counter is configured to generate grayscale counting information. After the first counter completes the grayscale counting of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

[0021] In some optional technical solutions of the present invention, within a frame time, the light emission time of the light-emitting element with the shortest light emission time is not evenly divided into at least two light emission sub-times.

[0022] In some optional technical solutions of the present invention, within one frame time, the light emission time of the remaining light-emitting elements is divided into at least two light emission sub-times, either equally or unevenly.

[0023] In some optional technical solutions of the present invention, within one frame time, the multiple light-emitting sub-light-emitting elements with the shortest light-emitting time are evenly distributed in time.

[0024] In some optional technical solutions of the present invention, within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0025] In some optional technical solutions of the present invention, the control module includes a first counter and a second counter;

[0026] The second counter is configured to count the number of light-emitting sub-times;

[0027] The first counter is configured to generate grayscale counting information, wherein the grayscale counting information is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0028] After the first counter completes the grayscale count of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

[0029] In some optional technical solutions of the present invention, within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, D2 is the duty cycle of the light-emitting element with the shortest light-emitting time, and the end point of the final light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

[0030] In some optional technical solutions of the present invention, the light-emitting area includes a left eye light-emitting area and a right eye light-emitting area, and the control module is configured to: within one frame time, adjust the start and end points of the light-emitting time of each color light-emitting element in the left eye light-emitting area, and / or adjust the start and end points of the light-emitting time of each color light-emitting element in the right eye light-emitting area, so that the phases of the light-emitting intervals of red light, green light and blue light are relatively matched in time sequence.

[0031] In some optional technical solutions of the present invention, the starting point and ending point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area are adjusted, and / or the starting point and ending point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area are adjusted, so that the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area is staggered from the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area.

[0032] In some optional technical solutions of the present invention, the light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area is divided into at least two light emission sub-times.

[0033] In some optional technical solutions of the present invention, the light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission area and the right eye light emission area is divided into at least two light emission sub-times, and the starting point of the light emission time of the light-emitting element with the shortest light emission time in the other of the left eye light emission area and the right eye light emission area is staggered from the starting point of the light emission time of the other light-emitting elements.

[0034] In some optional technical solutions of the present invention, the red light emitting element, the green light emitting element and the blue light emitting element are dimmed by one or more PWM pulses to achieve brightness modulation. At least two of the pulse start points of the red light emitting element, the green light emitting element and the blue light emitting element are different, and / or at least two of the pulse end points are different, so as to achieve phase relative matching.

[0035] In some optional technical solutions of the present invention, the display module includes a sensor electrically connected to the control module. The sensor is configured to detect the environmental parameters. The control module is configured to adjust the start and end points of the emission time of each color light-emitting element within one frame time according to the environmental parameters, so that the emission intervals of red light, green light and blue light are relatively matched in time sequence, so as to avoid or reduce the phenomenon of color breakage. The sensor includes at least one of a temperature sensor and an ambient light sensor.

[0036] This invention provides a control method for a display module, the display module comprising:

[0037] The light-emitting area includes multiple pixels, and each pixel includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element;

[0038] The control method includes:

[0039] Within one frame, the start and end points of the emission time of each color light-emitting component are adjusted to make the emission intervals of red, green and blue light relatively matched in terms of timing, so as to avoid or reduce the phenomenon of color breakage.

[0040] In some optional technical solutions of the present invention, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0041] In some optional technical solutions of the present invention, within one frame, the starting point of the light emission time of the light-emitting element with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting elements.

[0042] In some optional technical solutions of the present invention, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby making the start point of the light emission time of the light-emitting element with the shortest light emission time staggered from the start point of the light emission time of the other light-emitting elements.

[0043] In some optional technical solutions of the present invention, the display module includes a first counter, and the control method includes: the first counter generates grayscale count information of the light-emitting element with the shortest light-emitting time, and the grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time, so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the middle of the light-emitting time of the other light-emitting elements.

[0044] In some optional technical solutions of the present invention, the adjustment amount of the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

[0045] In some optional technical solutions of the present invention, within one frame, the start and end points of the emission time of the three light-emitting elements are adjusted so that the emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0046] In some optional technical solutions of the present invention, within one frame, the start and end times of the light emission time of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0047] In some optional technical solutions of the present invention, the light emission time of each color light-emitting element is grouped within one frame time, thereby adjusting the start and end points of the light emission time of each color light-emitting element.

[0048] In some optional technical solutions of the present invention, within one frame, the light emission time of the light-emitting device with the shortest light emission time is grouped to form multiple light emission sub-times, so that the light emission intervals of red light, green light and blue light are relatively matched in terms of timing.

[0049] In some optional technical solutions of the present invention, within one frame time, the light emission time of the light-emitting element with the shortest light emission time is divided into at least two light emission sub-times.

[0050] In some optional technical solutions of the present invention, the display module includes a first counter and a second counter;

[0051] The control method includes: the second counter counting the number of light-emitting times;

[0052] The first counter generates grayscale counting information. After the first counter completes the grayscale counting of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

[0053] In some optional technical solutions of the present invention, within a frame time, the light emission time of the light-emitting element with the shortest light emission time is not evenly divided into at least two light emission sub-times.

[0054] In some optional technical solutions of the present invention, within one frame time, the light emission time of the remaining light-emitting elements is divided into at least two light emission sub-times, either equally or unevenly.

[0055] In some optional technical solutions of the present invention, within one frame time, the multiple light-emitting sub-light-emitting elements with the shortest light-emitting time are evenly distributed in time.

[0056] In some optional technical solutions of the present invention, within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0057] In some optional technical solutions of the present invention, the display module includes a first counter and a second counter;

[0058] The control method includes: the second counter counting the number of light-emitting times;

[0059] The first counter generates grayscale counting information, which is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0060] After the first counter completes the grayscale count of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

[0061] In some optional technical solutions of the present invention, within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, D2 is the duty cycle of the light-emitting element with the shortest light-emitting time, and the end point of the final light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

[0062] In some optional technical solutions of the present invention, the light-emitting area includes a left eye light-emitting area and a right eye light-emitting area, and the control method includes: within one frame time, adjusting the start and end points of the light-emitting time of each color light-emitting element in the left eye light-emitting area, and / or adjusting the start and end points of the light-emitting time of each color light-emitting element in the right eye light-emitting area, so that the light-emitting intervals of red light, green light and blue light are relatively matched in phase in terms of timing.

[0063] In some optional technical solutions of the present invention, the starting point and ending point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area are adjusted, and / or the starting point and ending point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area are adjusted, so that the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area is staggered from the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area.

[0064] In some optional technical solutions of the present invention, the light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area is divided into at least two light emission sub-times.

[0065] In some optional technical solutions of the present invention, the light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission area and the right eye light emission area is divided into at least two light emission sub-times, and the starting point of the light emission time of the light-emitting element with the shortest light emission time in the other of the left eye light emission area and the right eye light emission area is staggered from the starting point of the light emission time of the other light-emitting elements.

[0066] In some optional technical solutions of the present invention, the red light emitting element, the green light emitting element and the blue light emitting element are dimmed by one or more PWM pulses to achieve brightness modulation. At least one of the pulse start point and end point of the red light emitting element, the green light emitting element and the blue light emitting element are different to achieve phase matching.

[0067] In some optional technical solutions of the present invention, the display module includes a sensor configured to detect the environmental parameters, the sensor including at least one of a temperature sensor and an ambient light sensor, and the control method includes:

[0068] Based on the environmental parameters, within one frame, the start and end points of the emission time of each color light-emitting component are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of phase in time, so as to avoid or reduce the phenomenon of color breakage.

[0069] In a second aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by the processor, it implements the steps of the control method of any of the above-mentioned technical solutions.

[0070] Thirdly, the display device provided by the present invention includes a display module of any of the above-mentioned technical solutions.

[0071] In the aforementioned control method, storage medium, and display device, the control module adjusts the start and end points of the emission time of each color light-emitting element within one frame to match the phase of the emission intervals of red, green, and blue light in time sequence, so as to avoid or reduce the phenomenon of color breakage, thereby optimizing the display effect to a certain extent.

[0072] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0073] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0074] Figure 1 This is one of the schematic diagrams of the display module according to an embodiment of the present invention;

[0075] Figure 2 This is a second schematic diagram of the display module according to an embodiment of the present invention;

[0076] Figure 3 This is a schematic diagram of the structure of the light-emitting region according to an embodiment of the present invention;

[0077] Figure 4 This is a schematic diagram of the pixel structure according to an embodiment of the present invention;

[0078] Figure 5 This is a schematic diagram illustrating the grouping of the emission time of the red light emitting element according to an embodiment of the present invention;

[0079] Figure 6 This is a schematic diagram illustrating how the control module controls the effective emission time of the red light-emitting element according to an embodiment of the present invention.

[0080] Figure 7 This is a schematic diagram of the light-emitting pulse and grayscale counting signal according to an embodiment of the present invention;

[0081] Figure 8 This is a schematic diagram illustrating how the control module of this invention groups the light-emitting time of the light-emitting element.

[0082] Figure 9 This is one of the schematic diagrams of the light emission pulse, grayscale counting signal, and light emission time counting signal according to an embodiment of the present invention;

[0083] Figure 10 This is a schematic diagram illustrating how the control module of this invention controls the effective emission time of the red light-emitting element and groups the emission time of the light-emitting element.

[0084] Figure 11 This is a second schematic diagram of the light emission pulse, grayscale counting signal, and light emission time counting signal according to an embodiment of the present invention;

[0085] Figure 12 This is a second schematic diagram of the display module according to an embodiment of the present invention;

[0086] Figure 13 This is a schematic diagram illustrating how the control module controls the effective emission time of the red light-emitting elements in the left and right eye emission areas according to an embodiment of the present invention.

[0087] Figure 14 This is a schematic diagram illustrating how the control module of this invention groups the emission time of the red light-emitting elements in the left and right eye emission areas;

[0088] Figure 15 This is a schematic diagram illustrating how the control module of this invention groups the emission time of the red light-emitting element in the left or right eye emission area and controls the effective emission time of the red light-emitting element in the left and right eye emission areas.

[0089] Figure 16 This is a schematic diagram illustrating color cracking in related technologies;

[0090] Figure 17 This is a comparative diagram of the RBG control logic in related technologies and the RBG control logic in the embodiments of the present invention.

[0091] Explanation of key component symbols:

[0092] Display module 100, light-emitting area 12, control module 14, pixel 16, red light-emitting element 18, green light-emitting element 20, blue light-emitting element 22, sensor 24, light-combining element 26, left eye light-emitting area 28, right eye light-emitting area 30. Detailed Implementation

[0093] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0094] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0096] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship according to the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0097] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0098] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0099] Color breakup is a common visual defect in related technologies. It occurs during eye movements, where light emitted from the screen falls on different parts of the retina as the eye moves, causing defects in the originally stable image. The faster the eye movements, the more noticeable the defect. Specific manifestations of color breakup include... Figure 16 As shown.

[0100] When red, blue, and green colors are blended, they form white light. However, red light has a shorter duration of emission, so the duration of white light formed by the blending of the three colors is determined by the duration of red light emission. If the duration of blue and green light emission continues, non-white light will be formed. This non-white light will be observed by the human eye when the eye moves. It is a different color relative to white light, thus forming what is known as color cracking.

[0101] The main reasons for color distortion in existing technologies are twofold: 1. Most existing products use a sequential modulation scheme for red, green, and blue light emission. 2. The luminous efficiency of blue, green, and red light is uneven, and changes in luminous efficiency occur with changes in ambient temperature and other operating conditions. Specifically, the reason for the short emission time of red light is that its luminous efficiency can only reach a high level under a relatively large current. Therefore, to maintain the high efficiency of red light emitters (such as LEDs), red light emitters typically need to operate under a relatively large current. Green and blue light emitters do not have this limitation, which leads to a shorter emission time for red light in order to maintain a constant D65 (the standard color temperature for white points). The luminous efficiency of blue, green, and red light is also affected differently by temperature; the relative emission times of red, blue, and green light change with temperature variations. In short, the emission times of red, green, and blue light are often inconsistent. These two reasons are particularly prone to causing color distortion.

[0102] Please see Figures 1 to 4 A display module 100 according to an embodiment of the present invention includes a light-emitting area 12 and a control module 14. The light-emitting area 12 includes a plurality of pixels 16, each pixel 16 including a red light-emitting element 18, a green light-emitting element 20, and a blue light-emitting element 22. The control module 14 is electrically connected to the light-emitting area 12, and the control module 14 is configured to adjust the start and end points of the emission time of each color light-emitting element within one frame, so that the phase of the emission intervals of red, green, and blue light is relatively matched in time, thereby avoiding or mitigating the phenomenon of color breakage.

[0103] In the aforementioned display module 100, the control module 14 adjusts the start and end points of the emission time of each color light-emitting element within one frame to make the phase of the emission intervals of red, green and blue light relatively matched in time to avoid or reduce the phenomenon of color breakage, thereby optimizing the display effect to a certain extent.

[0104] Specifically, the emission of red light-emitting element 18, green light-emitting element 20, and blue light-emitting element 22 is typically determined by the pulse width of the control signal. Optionally, when the control signal is at a high level, a pulse signal is generated, the pulse width of which is determined by the duration of the high level. When the control signal is at a low level, the pulse disappears. Thus, when the control signal switches between high and low levels, a control waveform with pulses is formed in the timing sequence. The pulses correspond to emission intervals in the timing sequence, and the emission intervals form the emission time in the timing sequence.

[0105] The phase matching of the emission intervals of red, green, and blue light in time can be understood as follows: when the red light emitter 18, the green light emitter 20, and the blue light emitter 22 emit light simultaneously, white light is formed. Within one frame, there is at least one white light emission time. The starting point of this white light emission time is offset from the starting point of the emission time of one or two emitters. The delayed starting point of the white light emission time reduces the emission time of one emitter alone, or reduces the continuous emission time of two emitters emitting light simultaneously, thereby avoiding or mitigating the problem of color breakage to a certain extent.

[0106] Please combine Figure 5 Within one frame, assuming that the red light emitter 18 has the shortest emission time, while the green light emitter 20 and the blue light emitter 22 have the same emission time and a longer emission time, this will be used as an example for illustration:

[0107] Optionally, in Figure 5 In this process, the emission time of the red light emitting element 18 is grouped and divided into two emission sub-times, which are evenly inserted into the emission time of the green light emitting element 20 and the blue light emitting element 22, thus reducing color breakage.

[0108] Regarding the explanation of the principle, such as Figure 17 As shown in the diagram. Figure 17 In the first part and the second part, the RGB (red, green, blue) timing modulation schemes correspond to related technologies. When stationary, the pixel displays white; when moving, the pixel exhibits color fragmentation. The third part is a scheme of one embodiment of the present invention. In this embodiment, RGB light emits light simultaneously, with the red light emitter 18 having the shortest emission time. The emission time of the red light emitter 18 is grouped into two emission sub-times. Therefore, within one frame, there exists a white light emission time W2. The starting point of this white light emission time W2 is staggered from the starting points of the emission times of the green and blue light emitters, thus delaying the white light emission time W2. Instead of combining it with the white light emission time W1 to form a longer white light emission time, this shortens the emission time of each G+B simultaneous continuous emission, effectively mitigating the color fragmentation phenomenon.

[0109] It should be noted that, due to the inability to display color and shade, although there is a G+B mixture in part 3, this mixture is lighter than the G+B mixture in parts 1 and 2. Figure 17 In the diagram, R represents red, G represents green, B represents blue, W represents white, Y represents yellow (a mixture of R and G), and G+B represents a mixture of green and blue.

[0110] The root cause is that the temporal light modulation scheme of the light-emitting area 12 creates defects on the retina during rapid eye movements. In the RGB temporal modulation scheme, color fragmentation is extremely severe, even occurring at slower eye movement speeds. When the RGB light-emitting devices emit light simultaneously, color fragmentation is still visible during eye movements because their emission times are not perfectly synchronized. When the solution proposed in this invention is adopted, by changing the emission start and end points of the three light-emitting devices, the emission time formed by the simultaneous emission of non-three-color devices is broken up, i.e., discontinuous. This reduces the discontinuity in the duration of dissimilar colors formed by the simultaneous emission of non-three colors, thereby significantly reducing the size and degree of blur caused by color fragmentation.

[0111] Therefore, in this embodiment of the invention, the control module 14 is configured to: adjust the start and end points of the emission time of each color light-emitting element within one frame, so that the emission intervals of red, green, and blue light are relatively matched in terms of temporal phase, thereby avoiding or mitigating color breakage. It is understood that the total length of the emission time of the remaining light-emitting elements is greater than the total length of the emission time of the light-emitting element with the shortest emission time.

[0112] The embodiments of the present invention are applicable to RGB tri-color emitting panels. In the fields of AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality), common red, green, and blue tri-color panels include the following two forms:

[0113] (1) As Figure 3 As shown, the RGB light-emitting elements are arranged closely together on the same panel. Each pixel 16 includes three RGB light-emitting elements, which include, but are not limited to, micro LEDs, micro OLEDs, etc., and the arrangement includes, but is not limited to, the uniform arrangement shown.

[0114] (2) Figure 4 As shown, in a pixel 16, the RGB light-emitting elements correspond to three light-emitting panels respectively. Each light-emitting panel has only one color light-emitting element. The three colors of light are mixed into white light by the light-combining element 26.

[0115] Optionally, a frame time can be the time required for the display to refresh one frame.

[0116] The present invention proposes at least two solutions to solve or mitigate color cracking, and each solution may include at least three implementation methods, which are described below.

[0117] The first approach: a solution that does not distinguish between left and right eyes. This approach includes the following implementation methods, with the system outline as follows: Figure 1 and Figure 2 As shown. The display module 100 may include a control module 14 and an active array 12, with the control module 14 electrically connected to the active array 12. Optionally, the display module 100 may also include a sensor 24, with the control module 14 electrically connected to the sensor 24 and the active array 12. The sensor 24 may be integrated within the control module 14 or located outside of it. The sensor 24 transmits sensor data (sensor_back) to the control module 14. The control module 14 analyzes the sensor data, acquires environmental parameters, and, based on these parameters, adjusts the start and end points of the emission time of each color light-emitting element within one frame to ensure that the phases of the red, green, and blue light emission intervals are matched in time to avoid or mitigate color distortion. The sensor 24 includes at least one of a temperature sensor 24 and an ambient light sensor 24. The environmental parameters include at least one of temperature and ambient light.

[0118] The control module 14 includes, but is not limited to, DDIC (display driver integrated circuit) and SOC (system on chip).

[0119] Sensor 24 can monitor the system's environmental parameters (including but not limited to temperature and ambient light intensity) in real time to provide real-time calibration. Control module 14 can acquire environmental parameters and determine the modulation scheme. Because the luminous efficiency of the light-emitting device fluctuates greatly under different environmental parameters, the PWM (pulse width modulation) modulation scheme for this type of light-emitting device will set different adjustment parameters / rules for different environmental parameters.

[0120] When environmental parameters change and switch PWM modulation parameters / patterns, the specific modulation scheme needs to be recalculated for different adjustment schemes. Generally, multiple PWM modulation schemes can be prepared within the range of environmental parameters used by the product. Optionally, the correspondence between environmental parameters and modulation schemes can be pre-calibrated and stored. The control module 14 can determine the corresponding modulation scheme based on the environmental parameters acquired in real time and the above correspondence. The modulation scheme can refer to the scheme of any embodiment of the present invention. Accordingly, the display module 100 can generate the power-on signal and counting signal required by the target for actual PWM modulation. Optionally, the counting signal can be a signal generated by a first counter, which is used to generate the light emission time required for different gray levels.

[0121] A power-on signal can be used to control the start point of the light emission time, and a counting signal is used to generate the end point of the light emission time. Together, they produce an effective signal for the target light emission time length. Optionally, in one embodiment, the specific control mode is as follows: providing multiple sets of power-on signals and counting signals within one frame generates multiple light emission pulses. Adjusting the effective positions of the power-on signals and counting signals controls the specific position of the light emission time of the light-emitting element within one frame. That is, in one embodiment, the red, green, and blue light-emitting elements achieve brightness modulation through one or more PWM pulse dimming methods. At least two of the pulse start points corresponding to the red, green, and blue light-emitting elements are different, and / or at least two of the pulse end points are different, to achieve phase matching.

[0122] The specific implementation of PWM pulse dimming:

[0123] This section describes in detail the process by which a tri-color light source achieves brightness modulation through dimming using one or more PWM pulses. Specifically, it should be noted that at least two of the PWM pulse start points and at least two of the pulse end points for each of the three light-emitting elements are different to achieve phase matching and reduce color clipping. For example: the PWM pulse start point for a red light-emitting element is T1, and the end point is T2; the PWM pulse start point for a green light-emitting element is T3, and the end point is T4; and the PWM pulse start point for a blue light-emitting element is T5, and the end point is T6.

[0124] Specifically, at least two of T1, T3, and T5 are different, and / or at least two of T2, T4, and T6 are different, for example, T1 and T3 are different, and T1 and T5 are the same; or T1 and T3 are different, and T3 and T5 are the same; or T1, T3, and T5 are all different; and / or T2 and T4 are different, and T2 and T6 are the same; or T2 and T4 are different, and T4 and T6 are the same; or T2, T4, and T6 are all different.

[0125] In some implementations, within one frame, the start and end points of the emission time of the light-emitting element with the shortest emission time are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

[0126] Therefore, by adjusting the start and end points of the light emission time of the light-emitting element with the shortest light emission time, the phases of the light emission intervals of red, green, and blue light are matched in time sequence.

[0127] Specifically, (1) in RGB three-color light emission technology, the luminous efficiency of the three colors is not consistent, and the decay of their luminous efficiency is also inconsistent as the temperature increases. The approximate ratio of RGB when combined to form white light is 2:7:1, not 1:1:1. This ratio refers to light intensity, which is related to both luminous efficiency and emission time. Due to the above reasons, in actual modulation schemes, the emission time of RGB will always be inconsistent. Therefore, simply emitting RGB light simultaneously cannot solve the color breakage problem.

[0128] (2) The solutions mentioned in this invention include, but are not limited to, those applicable to digital modulation technology (PWM modulation), and also include hybrid modulation. Hybrid modulation, which includes digital modulation and analog modulation, is generally used in products. There are various combinations of the two modulation methods. A common approach is to use analog modulation to determine a larger brightness adjustment range, and digital modulation for more precise brightness control.

[0129] (3) In the embodiments of the present invention, the light emission time of the red light emitting element 18 is the shortest, while the light emission time of the blue light emitting element 22 and the green light emitting element 20 is the longest. However, the present invention does not specifically refer to this situation. In specific embodiments, the light emission time of the red light emitting element 18, the green light emitting element 20 and the blue light emitting element 22 are all uncertain.

[0130] Therefore, in one embodiment, the start and end points of the emission time of the red light emitter 18 are adjusted so that the emission intervals of red, green, and blue light are relatively matched in terms of timing. Optionally, when adjusting the start and end points of the emission time of the red light emitter 18, the emission time length of the red light emitter 18 remains unchanged. Please refer to... Figure 6 In diagram C, adjust the start and end points of the emission time of the red light-emitting element 18, shifting the overall emission time of the red light-emitting element 18 to the right. At this point, the start point of the emission time of the white light formed by simultaneous RGB emission is offset from the start points of the green and blue light emission times, compared to... Figure 6 In Figure A, the emission of white light is delayed.

[0131] In some implementations, within one frame, the starting point of the light emission time of the light-emitting element with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting elements.

[0132] Therefore, the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time can be adjusted to be staggered from the starting point of the light-emitting time of the other light-emitting elements.

[0133] Specifically, in Figure 6 In one frame, the light-emitting element with the shortest emission time is the red light-emitting element 18, and the other light-emitting elements are the blue light-emitting element 22 and the green light-emitting element 20. Figure 6Figure A shows a modulation scheme in the related technology, in which the starting points of the emission times of the red light emitter, green light emitter, and blue light emitter are aligned (the same) within one frame.

[0134] Please combine Figure 6 In diagram C, the starting point of the emission time of the red light-emitting element 18 can be adjusted to be staggered from the starting points of the emission time of the green light-emitting element 20 and the blue light-emitting element 22. Since the emission time of the red light-emitting element 18 remains constant, adjusting the starting point of the emission time of the red light-emitting element 18 will also adjust the ending point, thereby delaying the emission time of the white light formed by RGB. This delay can break up the emission time corresponding to the simultaneous emission of non-three-color devices, making them discontinuous, thereby reducing the continuous emission time of the emission time corresponding to the simultaneous emission of non-three-color devices and solving the color breakage problem.

[0135] In some implementations, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby offsetting the start point of the light emission time of the light-emitting element with the shortest light emission time from the start point of the light emission time of the other light-emitting elements.

[0136] Therefore, the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time can be staggered from the starting point of the light-emitting time of the other light-emitting elements.

[0137] Specifically, in this embodiment, the light-emitting time of the light-emitting element with the shortest light-emitting time remains unchanged. Figure 6 In diagram C, adjust the start and end points of the light emission time with the shortest light emission time so that the light emission time of the light emission element with the shortest light emission time is shifted to the right as a whole, so that the light emission times of the three light emission elements are aligned in the middle.

[0138] The statement that the three light-emitting elements are aligned in the middle can be understood as meaning that the midpoints of the light-emitting times of the three light-emitting elements are the same in timing.

[0139] In some embodiments, the control module 14 includes a first counter configured to generate grayscale count information of the light-emitting element with the shortest light-emitting time. The grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the light-emitting time of the other light-emitting elements.

[0140] Therefore, the light-emitting time of the light-emitting element with the shortest light-emitting time can be adjusted by using the first counter.

[0141] Specifically, the first counter can be a gamma counter. The first counter counts a total of 2^N-1, where N can refer to the number of bits in the image grayscale encoding. In one example, N = 8.

[0142] exist Figure 6 In diagram C, the determined modulation scheme is to adjust the start and end points of the light emission time of the light-emitting element with the shortest light emission time, so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0143] Please combine Figure 7 The first counter assigns grayscale values ​​to the light-emitting element with the shortest emission time in a left-right order according to the grayscale sequence, which can adjust the emission time of the red light-emitting element 18. In one example, the grayscale signal received by the first counter is 5. The first counter provides a high level for count values ​​less than 5, thereby causing grayscale values ​​of 0-4 to emit light.

[0144] The processor generates a control signal PWM_EM with a target width. The pulse of the PWM_EM signal is located in the middle of the grayscale counting signal. The pulse width of the PWM_EM signal controls the emission time of the light-emitting device.

[0145] Optionally, the first counter can be integrated inside the control module 14 or located outside the control module 14. The first counter can also be a peripheral circuit located in the light-emitting area 12. The present invention does not impose specific limitations on this.

[0146] In some implementations, the adjustment amount of the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

[0147] Therefore, the amount of time adjustment can be determined.

[0148] Specifically, in Figure 6 Among them, the light-emitting elements with the longest light emission time are the green light-emitting element 20 and the blue light-emitting element 22. D1 can be the duty cycle of the green light-emitting element 20 or the duty cycle of the blue light-emitting element 22. The light-emitting element with the shortest light emission time is the red light-emitting element 18, and D2 is the duty cycle of the red light-emitting element 18.

[0149] Optionally, the duty cycle can refer to the duty cycle of the 255 grayscale level (the highest grayscale). Optionally, in a PWM modulation scheme, brightness is controlled by adjusting the duty cycle; a higher duty cycle results in greater brightness. The duty cycle can be calculated based on brightness, current intensity, luminous efficiency, etc.

[0150] In one implementation, please refer to Figure 6 In Figure B, within one frame, the start and end points of the emission time of the three light-emitting components are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

[0151] Therefore, by adjusting the start and end points of the emission time of the three light-emitting components, the emission intervals of red, green, and blue light are made to be relatively matched in terms of timing.

[0152] Therefore, in one embodiment, optionally, when adjusting the start and end points of the emission time of the red light emitting element 18, the green light emitting element 20, and the blue light emitting element 22, the emission time length of the red light emitting element 18, the green light emitting element 20, and the blue light emitting element 22 remains unchanged. Please refer to... Figure 6 In diagram B, adjust the start and end points of the emission time for red light emitter 18, green light emitter 20, and blue light emitter 22, shifting their emission times collectively to the right. At this point, the start point of the white light emission time formed by simultaneous RGB emission is offset from the start points of the green and blue light emission times, compared to... Figure 6 In Figure A, the emission of white light is delayed.

[0153] In some implementations, within one frame, the start and end times of the light emission of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0154] Therefore, by adjusting the start and end points of the light emission time of the three light-emitting elements, the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0155] Specifically, in Figure 6 In Figure B, adjust the start and end points of the light emission time of the three light-emitting components so that the light emission time of the three light-emitting components moves to the right as a whole, and the light emission time of the three light-emitting components is aligned in the middle.

[0156] In some implementations, please refer to Figure 8 In Figure B, the emission time of each color light-emitting component is grouped within one frame, and the start and end points of the emission time of each color light-emitting component are adjusted accordingly.

[0157] Therefore, the luminous time of each color light-emitting element can be grouped, and the exact time of luminous time of each color light-emitting element can be adjusted.

[0158] Grouping the emission time can form at least two emission sub-times. In one embodiment, the emission time of the light-emitting element is determined by the pulse width of the control signal. When grouping, a pulse can be divided into at least two sub-pulses, each sub-pulse corresponding to one emission sub-time.

[0159] The grouping scheme for emission time mentioned in this invention includes, but is not limited to, equal division, unequal division, and division to both ends. The number of groups involved in this invention is ≥2, that is, divided into at least two emission sub-times.

[0160] The luminous duration of each color luminous element is grouped, including but not limited to grouping the luminous duration of the luminous element with the shortest luminous duration, as well as grouping the luminous duration of the luminous element with the shortest luminous duration and grouping the luminous duration of the remaining luminous elements.

[0161] After grouping, in terms of timing, the starting point of the first emitting time can be the same as or later than the starting point of the emitting time before grouping. The ending point of the last emitting time can be the same as or earlier than the ending point of the emitting time before grouping; this invention does not impose specific limitations on this.

[0162] After grouping, the start and end points of the luminescent time are at least different from the start and end points of the luminescent time before grouping. That is, for a certain luminescent time, its start point may be the same as the start point of the luminescent time before grouping, but its end point may be different from the end point of the luminescent time before grouping; for a certain luminescent time, its start point may be different from the start point of the luminescent time before grouping, but its end point may be the same as the end point of the luminescent time before grouping; for a certain luminescent time, its start point may be different from the start point of the luminescent time before grouping, but its end point may be different from the end point of the luminescent time before grouping.

[0163] In some implementations, within a frame, the emission times of the light-emitting device with the shortest emission time are grouped to form multiple emission sub-times, so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

[0164] Therefore, the light emission time of the last light-emitting element can be grouped.

[0165] Specifically, grouping the light-emitting times of the light-emitting components with the shortest light-emitting time can more effectively alleviate color cracking or, to some extent, avoid the phenomenon of color cracking.

[0166] exist Figure 8 Among them, the light-emitting element with the shortest light emission time is the red light-emitting element 18. The light emission time of the red light-emitting element 18 is grouped, for example, the light emission time of the red light-emitting element 18 is divided into two groups.

[0167] In some implementations, within a frame, the emission time of the light-emitting element with the shortest emission time is divided into at least two emission sub-times.

[0168] Therefore, the light emission time of the light-emitting element with the shortest light emission time can be divided into at least two light emission sub-times.

[0169] Specifically, in the light-emitting element with the shortest light-emitting time, the light-emitting time is divided into multiple light-emitting sub-times, and each sub-time has the same length. Figure 8 In Figure B, the light-emitting element with the shortest light emission time is the red light-emitting element 18. The light emission time of the red light-emitting element 18 is divided into two light-emitting sub-times, and the lengths of the two light-emitting sub-times are the same.

[0170] It is understandable that the total length of all luminescent times summed together is the same as the length of the luminescence time before grouping.

[0171] Figure 8 Figure A shows a modulation scheme in the related technology. Within one frame, the starting point of the emission time of the red light emitter, green light emitter, and blue light emitter is the same and they are not grouped.

[0172] In some implementations, please refer to Figure 8 Figure B and Figure 9 The control module 14 includes a first counter and a second counter;

[0173] The second counter is configured to count the number of light-emitting times;

[0174] The first counter is configured to generate grayscale counting information. After the first counter completes the grayscale counting of one light-emitting time, the second counter increments the count of light-emitting times until the count of light-emitting times by the second counter is equal to the total number of light-emitting times in one frame.

[0175] Therefore, it is possible to divide the light emission time of the light-emitting element with the shortest light emission time into at least two light emission sub-times.

[0176] Specifically, the first counter can be a gamma counter. The first counter counts a total of 2^N-1, where N can refer to the number of bits in the image grayscale encoding. In one example, N = 8. The second counter can be a frame counter.

[0177] exist Figure 8 In Figure B, the determined modulation scheme divides the emission time of the light-emitting element with the shortest emission time into two equal emission sub-times. The second counter can receive the group number configuration signal Frame_num for fractional counting. The number of groups can be preset. In a specific implementation scheme, the number of groups is a preset fixed value.

[0178] After the first counter completes grayscale counting for one luminous time, the second counter increments the count of luminous times by one and begins counting the next group. In each group, the first counter counts from 0 to 2^N-1.

[0179] Each grayscale emission requires the generation of a control signal PWM_EM (emission signal) via a first counter and a second counter. The count of the second counter indicates that the emission time of the red light emitter 18 is in an average grouping scheme.

[0180] Optionally, the first counter and the second counter can be integrated inside the control module 14 or located outside the control module 14. The first counter and the second counter can also be peripheral circuits located in the light-emitting area 12. The present invention does not impose specific limitations on this.

[0181] In some implementations, please refer to Figure 8 In Figure C, within one frame, the emission time of the light-emitting element with the shortest emission time is not evenly divided into at least two emission sub-times.

[0182] Therefore, the light emission time of the light-emitting element with the shortest light emission time is not evenly divided into at least two light emission sub-times.

[0183] Specifically, in the case of the light-emitting element with the shortest emission time, where the emission time is not evenly divided into multiple emission sub-times, the lengths of some or all emission sub-times may differ from the lengths of the others, while the lengths of some emission sub-times may be the same, or all emission sub-times may have different lengths. Figure 8 In diagram C, the light-emitting element with the shortest light-emitting time does not have its light-emitting time evenly divided into two light-emitting sub-times, and the lengths of the two light-emitting sub-times are not the same.

[0184] In some implementations, please refer to Figure 8 In the D-graph, within one frame, the emission time of the remaining light-emitting components is divided into at least two light-emitting sub-times, either evenly or unevenly.

[0185] Therefore, when grouping the light-emitting time of the light-emitting element with the shortest light-emitting time, the light-emitting time of the other light-emitting elements can also be grouped.

[0186] Specifically, in Figure 8 In the implementation of Figure D, the light-emitting element with the shortest emission time is the red light-emitting element 18, and the remaining light-emitting elements are the green light-emitting element 20 and the blue light-emitting element 22. Dividing the emission time of the green light-emitting element 20 into at least two emission sub-times, and the emission time of the blue light-emitting element 22 into at least two emission sub-times, can further alleviate the color fragmentation phenomenon. It is understood that the remaining light-emitting elements may include any one of the two light-emitting elements other than the one with the shortest emission time, or two other light-emitting elements.

[0187] In one embodiment, the emission time of either the green light emitter 20 or the blue light emitter 22 can be divided into at least two emission sub-times, either equally or unevenly.

[0188] In some implementations, please refer to Figure 10 In Figure B, within one frame, the multiple light-emitting elements of the light-emitting device with the shortest emission time are evenly distributed in time.

[0189] This allows for the time-even distribution of multiple photons.

[0190] Specifically, uniform distribution can refer to the fact that the time interval between any two adjacent photon times is the same. Figure 10 In Figure B, the luminescence time of the red light emitting element 18 is divided into two light-emitting sub-times. The time interval between the two light-emitting sub-times can be arbitrary, as long as the end of the second (last) light-emitting sub-time is no later than the end of the luminescence time of the other light-emitting elements.

[0191] Figure 10 Figure A shows a modulation scheme in the related technology. Within one frame, the starting point of the emission time of the red light emitter, green light emitter, and blue light emitter is the same and they are not grouped.

[0192] In some implementations, please refer to Figure 10 In Figure C, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time within one frame, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the other light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the other light-emitting elements.

[0193] Therefore, the emission time of the luminescent element can be aligned with the emission times of the other luminescent elements.

[0194] Specifically, in Figure 10 In the embodiment shown in Figure C, the remaining light-emitting elements include a green light-emitting element 20 and a blue light-emitting element 22. Within one frame, the starting point of the light emission time of the green light-emitting element 20 and the starting point of the light emission time of the blue light-emitting element 22 are the same (aligned), and the ending point of the light emission time of the green light-emitting element 20 and the ending point of the light emission time of the blue light-emitting element 22 are the same (aligned), that is, the two ends of the light emission time of the green light-emitting element 20 and the light emission time of the blue light-emitting element 22 are aligned.

[0195] exist Figure 10In diagram C, the emission time of the red light emitter 18 is divided into two emission sub-times, either evenly or unevenly. The starting point of the first emission sub-time is the same as the starting point of the emission time of the green light emitter 20, aligning the beginning of the first emission sub-time with the beginning of the emission time of the green light emitter 20. The ending point of the last emission sub-time is the same as the ending point of the emission time of the green light emitter 20, aligning the end of the last emission sub-time with the end of the emission time of the green light emitter 20.

[0196] In one embodiment, the emission time of the red light emitter 18 is divided into three emission sub-times, either evenly or unevenly. The starting point of the first emission sub-time is the same as the starting point of the emission time of the green light emitter 20. The ending point of the last emission sub-time is the same as the ending point of the emission time of the green light emitter 20. The time interval between the middle emission sub-time and the first emission sub-time, and the time interval between the middle emission sub-time and the last emission sub-time, can be the same or different.

[0197] In one embodiment, the emission time of the red light emitting element 18 is divided into three or more emission sub-times, either evenly or unevenly. The specific configuration can be referred to the above configuration, and will not be elaborated here.

[0198] It is understood that in other embodiments, the remaining light-emitting elements may refer to either the blue light-emitting element 22 or the green light-emitting element 20. The light-emitting times of the blue light-emitting element 22 and the green light-emitting element 20 may be the same or different.

[0199] In some implementations, please refer to Figure 10 The C diagram and Figure 11 The control module 14 includes a first counter and a second counter;

[0200] The second counter is configured to count the number of light-emitting times;

[0201] The first counter is configured to generate grayscale counting information, which is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0202] After the first counter completes the grayscale counting of one luminous time, the second counter increments the count of luminous times until the count of the second counter equals the total number of luminous times in one frame.

[0203] Therefore, the light emission time of the light-emitting element with the shortest light emission time can be aligned with the light emission times of the other light-emitting elements.

[0204] Specifically, the first counter can be a gamma counter. The first counter counts a total of 2^N-1, where N can refer to the number of bits in the image grayscale encoding. In one example, N = 8. The second counter can be a frame counter.

[0205] exist Figure 10 In Figure C, the determined modulation scheme is: among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time within one frame, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the other light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the other light-emitting elements.

[0206] The second counter can receive a group count configuration signal `frame_num` for score counting. The number of groups can be preset. In a specific implementation scheme, the number of groups is a preset fixed value.

[0207] After the first counter completes the grayscale counting of one luminous time, the second counter increments the count of luminous times and begins counting the next group.

[0208] Optionally, in one embodiment, the grayscale counting information can be configured such that the grayscale value direction of the first emitter time is opposite to the grayscale value direction of the last emitter time. Figure 11 In this system, the grayscale value direction of the first light-emitting sub-time is from 0 to 2^N-1, and the grayscale value direction of the second (last) light-emitting sub-time is from 2^N-1 to 0. In one example, for the first light-emitting sub-time, when the grayscale signal received by the first counter is 3, the first counter can emit light for grayscales less than 3, i.e., grayscales 0-2, and the pulse width of the PWM_EM is the length corresponding to grayscales 0-2. For the last light-emitting sub-time, when the grayscale signal received by the first counter is 3, the first counter can emit light for grayscales less than 3, i.e., grayscales 0-2, and the pulse width of the PWM_EM is the length corresponding to grayscales 0-2. This ensures that the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the other light-emitting components, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the other light-emitting components.

[0209] Each grayscale emission requires the generation of a control signal PWM_EM (emission signal) via a first counter and a second counter. The count of the second counter indicates that the emission time of the red light emitter 18 is in an average grouping scheme.

[0210] Optionally, the first counter and the second counter can be integrated inside the control module 14 or located outside the control module 14. The first counter and the second counter can also be peripheral circuits located in the light-emitting area 12. The present invention does not impose specific limitations on this.

[0211] In some implementations, please refer to Figure 10 In the D diagram, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time within one frame, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, and D2 is the duty cycle of the light-emitting element with the shortest light-emitting time. Finally, the end point of the light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

[0212] Therefore, the starting point of the photon time can be adjusted.

[0213] Specifically, in Figure 10 In diagram D, the light-emitting elements with the longest emission time are the green light-emitting element 20 and the blue light-emitting element 22. D1 can be the duty cycle of either the green light-emitting element 20 or the blue light-emitting element 22. The light-emitting element with the shortest emission time is the red light-emitting element 18, and D2 is the duty cycle of the red light-emitting element 18.

[0214] The adjustment of the luminescent time of the starting point includes, but is not limited to, the first luminescent time, the last luminescent time, and any one or more of the intermediate sub-segments between the first and last luminescent times. Figure 10 In the D diagram, the photon time of the starting point is adjusted to the first photon time.

[0215] The second approach: a method that distinguishes between the left and right eyes. This method includes the following implementation methods, and the system outline is as follows: Figure 12 As shown. Optionally, sensor 24 includes at least one of a temperature sensor and an ambient light sensor. Sensor 24 monitors environmental parameters in real time (environmental parameters include at least one of temperature and ambient light intensity) to provide real-time calibration. Control module 14 processes these environmental parameters and assigns them to different modulation schemes for the left and right eye emission areas 30, calculating the calibration optimization parameters for each eye. The second approach, which uses different modulation schemes for the left and right eyes, is more conducive to solving the color distortion problem.

[0216] In some implementations, please refer to Figure 13 The light-emitting area 12 includes a left eye light-emitting area 28 and a right eye light-emitting area 30. The control module 14 is configured to: within one frame, adjust the start and end points of the light-emitting time of each color light-emitting element in the left eye light-emitting area 28, and / or adjust the start and end points of the light-emitting time of each color light-emitting element in the right eye light-emitting area 30 so that the phases of the light-emitting intervals of red light, green light and blue light are relatively matched in time.

[0217] Therefore, by adjusting the start and end points of the emission time of each color emitting element in the left eye emission zone 28 and / or the right eye emission zone 30, the emission intervals of red, green and blue light can be made to match the phase of the emission sequence.

[0218] In some embodiments, the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 are adjusted, and / or the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30 are adjusted so that the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 is offset from the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30.

[0219] Therefore, by adjusting the start and end points of the light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area 28 and / or the right eye light emission area 30, the phases of the red, green and blue light emission intervals are matched in time.

[0220] Specifically, adjusting the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 and / or the right eye light-emitting area 30 includes adjusting the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28, adjusting the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30, and adjusting the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in both the left eye light-emitting area 28 and the right eye light-emitting area 30.

[0221] In one embodiment, the starting point of the light emission time of the light-emitting element with the shortest light emission time in the left eye light-emitting area 28 is adjusted to be offset from the starting point of the light emission time of the light-emitting element with the shortest light emission time in the right eye light-emitting area 30.

[0222] This can increase the effective light-emitting time of the light-emitting component with the shortest light-emitting time in both eyes.

[0223] Specifically, in Figure 13 Among them, the light-emitting element with the shortest light emission time is the red light-emitting element 18. The light emission time of the red light-emitting element 18 in the left eye light emission area 28 is staggered with the light emission time of the red light-emitting element 18 in the right eye light emission area 30, which can increase the effective light emission time of the red light-emitting elements 18 in both eyes.

[0224] exist Figure 13In the embodiment shown, the emission time of the red light emitting element 18 in the left eye emission area 28 is not adjusted, but the start and end points of the emission time of the red light emitting element 18 in the right eye emission area 30 are adjusted to delay the start and end points of the emission time of the red light emitting element 18 in the right eye emission area 30. The emission time of the red light emitting element 18 is shifted to the right as a whole, thereby causing the start point of the emission time of the red light emitting element 18 in the left eye emission area 28 to be offset from the start point of the emission time of the red light emitting element 18 in the right eye emission area 30, thereby increasing the effective emission time of the light emitting element with the shortest emission time in both eyes.

[0225] In one embodiment, the start and end points of the emission time of the red light emitting element 18 in the right eye emission area 30 are not adjusted, while the start and end points of the emission time of the red light emitting element 18 in the left eye emission area 28 are adjusted to delay the start and end points of the emission time of the red light emitting element 18 in the left eye emission area 28. The emission time of the red light emitting element 18 is shifted to the right as a whole, thereby causing the start point of the emission time of the red light emitting element 18 in the left eye emission area 28 to be offset from the start point of the emission time of the red light emitting element 18 in the right eye emission area 30, thereby increasing the effective emission time of the light emitting element with the shortest emission time in both eyes.

[0226] It is understood that the implementation method in the first scheme, which sets the starting point of the light-emitting time of the light-emitting element with the shortest light-emitting time apart from the starting points of the light-emitting time of the other light-emitting elements, is also applicable to this implementation method.

[0227] In some implementations, please refer to Figure 14 The light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area 28 is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area 30 is divided into at least two light emission sub-times.

[0228] This can further alleviate the phenomenon of color cracking.

[0229] Specifically, the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 can be divided into at least two light-emitting sub-times, and / or the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30 can be divided into at least two light-emitting sub-times, thereby further reducing the phenomenon of color breakage.

[0230] It is understood that the implementation methods for grouping and aligning emission times in the first scheme are all applicable to this implementation method.

[0231] Optionally, dividing the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 into at least two light-emitting sub-times, and / or dividing the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30 into at least two light-emitting sub-times can be done on the basis of increasing the effective light-emitting time of the light-emitting element with the shortest light-emitting time in both eyes.

[0232] In some implementations, please refer to Figure 15 The light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission areas 28 and the right eye light emission areas 30 is divided into at least two light emission sub-times, and the starting point of the light emission time of the other light-emitting element with the shortest light emission time in the left eye light emission area 28 and the right eye light emission area 30 is staggered from the starting point of the light emission time of the remaining light-emitting elements.

[0233] This can further alleviate the phenomenon of color cracking.

[0234] Specifically, based on increasing the effective light-emitting time of the light-emitting element with the shortest light-emitting time for both eyes, the light-emitting time of the light-emitting element with the shortest light-emitting time in one of the light-emitting areas 28 of the left eye and 30 of the right eye is divided into at least two light-emitting sub-times. In addition, the starting point of the light-emitting time of the other light-emitting element with the shortest light-emitting time in the light-emitting area 28 of the left eye and 30 of the right eye is staggered from the starting point of the light-emitting time of the other light-emitting elements, thereby further reducing the phenomenon of color breakage.

[0235] exist Figure 15 In this process, the emission time of the red light emitting element 18 in the right eye emission area 30 is divided into two emission sub-times, and the starting point of the emission time of the red light emitting element 18 in the left eye emission area 28 is staggered from the starting point of the emission time of the green light emitting element 20.

[0236] In one embodiment, the emission time of the red light emitting element 18 in the left eye emission area 28 is divided into two emission sub-times, and the starting point of the emission time of the red light emitting element 18 in the right eye emission area 30 is staggered from the starting point of the emission time of the green light emitting element 20.

[0237] It is understood that the implementation methods for grouping and aligning emission times in the first scheme are all applicable to this implementation method.

[0238] This invention provides a control method for a display module 100. The display module 100 includes a light-emitting area 12, which includes a plurality of pixels 16. Each pixel 16 includes a red light-emitting element 18, a green light-emitting element 20, and a blue light-emitting element 22.

[0239] Control methods include:

[0240] Within one frame, the start and end points of the emission time of each color light-emitting component are adjusted to make the phase of the emission areas 12 of red, green and blue light relatively matched in time, so as to avoid or reduce the phenomenon of color breakage.

[0241] It should be noted that the above explanation of the implementation method and beneficial effects of the display module 100 also applies to the control method of this implementation method. To avoid redundancy, it will not be elaborated in detail here.

[0242] In some implementations, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the phases of the red, green and blue light emission areas 12 are matched in time.

[0243] In some implementations, within one frame, the starting point of the light emission time of the light-emitting element with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting elements.

[0244] In some implementations, within one frame, the start and end points of the light emission time of the light-emitting element with the shortest light emission time are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby offsetting the start point of the light emission time of the light-emitting element with the shortest light emission time from the start point of the light emission time of the other light-emitting elements.

[0245] In some embodiments, the display module 100 includes a first counter, and the control method includes: the first counter generates grayscale count information of the light-emitting element with the shortest light-emitting time, and the grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time, so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the middle of the light-emitting time of the other light-emitting elements.

[0246] In some implementations, the adjustment amount of the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

[0247] In some implementations, within one frame, the start and end points of the emission time of the three light-emitting elements are adjusted so that the phases of the red, green and blue light emission areas 12 are matched in time.

[0248] In some implementations, within one frame, the start and end times of the light emission of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

[0249] In some implementations, the emission time of each color light-emitting element is grouped within a frame, thereby adjusting the start and end points of the emission time of each color light-emitting element.

[0250] In some implementations, within one frame, the emission time of the light-emitting element with the shortest emission time is grouped to form multiple emission sub-times, so that the phase of the emission regions 12 of red light, green light and blue light is matched in time sequence.

[0251] In some implementations, within a frame, the emission time of the light-emitting element with the shortest emission time is divided into at least two emission sub-times.

[0252] In some embodiments, the display module 100 includes a first counter and a second counter;

[0253] The control method includes: a second counter counting the number of photon times;

[0254] The first counter generates grayscale counting information. After the first counter completes the grayscale counting of one light-emitting time, the second counter increments the count of light-emitting times by one until the count of light-emitting times by the second counter is equal to the total number of light-emitting times in one frame.

[0255] In some implementations, within a frame, the emission time of the light-emitting element with the shortest emission time is not evenly divided into at least two emission sub-times.

[0256] In some implementations, within a frame time, the emission time of the remaining light-emitting elements is divided into at least two emission sub-times, either equally or unevenly.

[0257] In some implementations, within a frame, the multiple light-emitting elements of the light-emitting element with the shortest emission time are evenly distributed in time.

[0258] In some implementations, within a frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the remaining light-emitting elements.

[0259] In some embodiments, the display module 100 includes a first counter and a second counter;

[0260] The control method includes: a second counter counting the number of photon times;

[0261] The first counter generates grayscale counting information, which is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the other light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the other light-emitting elements.

[0262] After the first counter completes the grayscale count of one luminous time, the second counter increments the count of luminous times by one until the count of luminous times by the second counter equals the total number of luminous times in one frame.

[0263] In some implementations, within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, D2 is the duty cycle of the light-emitting element with the shortest light-emitting time, and the end point of the last light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

[0264] In some embodiments, the light-emitting area 12 includes a left-eye light-emitting area 28 and a right-eye light-emitting area 30. The control method includes: within one frame, adjusting the start and end points of the light-emitting time of each color light-emitting element in the left-eye light-emitting area 28, and / or adjusting the start and end points of the light-emitting time of each color light-emitting element in the right-eye light-emitting area 30, so that the phases of the red, green and blue light-emitting areas 12 are relatively matched in terms of timing.

[0265] In some embodiments, the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 are adjusted, and / or the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30 are adjusted so that the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area 28 is offset from the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area 30.

[0266] In some embodiments, the light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area 28 is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area 30 is divided into at least two light emission sub-times.

[0267] In some embodiments, the light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission areas 28 and the right eye light emission areas 30 is divided into at least two light emission sub-times, and the starting point of the light emission time of the other light-emitting element with the shortest light emission time in the left eye light emission area 28 and the right eye light emission area 30 is staggered from the starting point of the light emission time of the remaining light-emitting elements.

[0268] In some embodiments, the red light emitter 18, the green light emitter 20, and the blue light emitter 22 achieve brightness modulation through dimming in the form of one or more PWM pulses. At least one of the pulse start and end points corresponding to the red light emitter 18, the green light emitter 20, and the blue light emitter 22 is different to achieve phase matching.

[0269] In some embodiments, the display module 100 includes a sensor 24 configured to detect environmental parameters, the sensor 24 including at least one of a temperature sensor and an ambient light sensor. Control methods include:

[0270] Based on environmental parameters, within one frame, the start and end points of the emission time of each color light-emitting component are adjusted to make the emission intervals of red, green and blue light relatively matched in terms of phase in time, so as to avoid or reduce the phenomenon of color breakage.

[0271] The present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the steps of the control method of any of the above embodiments.

[0272] In one implementation, the control method implemented when the computer program is executed by the processor includes:

[0273] Within one frame, the start and end points of the emission time of each color light-emitting component are adjusted to make the phase of the emission areas 12 of red, green and blue light relatively matched in time, so as to avoid or reduce the phenomenon of color breakage.

[0274] One embodiment of the present invention provides a display device including the display module 100 of any of the above embodiments.

[0275] In the aforementioned display device, the control module 14 adjusts the start and end points of the emission time of each color light-emitting element within one frame to match the phase of the emission intervals of red, green and blue light in time sequence to avoid or reduce the phenomenon of color breakage, thereby optimizing the display effect to a certain extent.

[0276] Specifically, the display device may include, but is not limited to, micro-LED display devices, LED display devices, and OLED display devices, etc., and the present invention does not specifically limit them. The display device of the embodiments of the present invention can be applied in fields including but not limited to AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality).

[0277] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0278] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, combinations, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A display module, characterized in that, include: The light-emitting area includes multiple pixels, and each pixel includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element; The control module is electrically connected to the light-emitting area. The control module is configured to adjust the start and end points of the light-emitting time of each color light-emitting element within one frame, so that the phases of the light-emitting intervals of red, green and blue light are relatively matched in time sequence, so as to avoid or reduce the phenomenon of color breakage.

2. The display module according to claim 1, characterized in that, Within one frame, the start and end points of the emission time of the light-emitting device with the shortest emission time are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

3. The display module according to claim 2, characterized in that, Within one frame, the starting point of the light emission time of the light-emitting component with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting components.

4. The display module according to claim 3, characterized in that, Within one frame, adjust the start and end points of the light emission time of the light-emitting element with the shortest light emission time, so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby making the start point of the light emission time of the light-emitting element with the shortest light emission time different from the start point of the light emission time of the other light-emitting elements.

5. The display module according to claim 4, characterized in that, The control module includes a first counter, which is configured to generate grayscale count information of the light-emitting element with the shortest light-emitting time. The grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time, so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the middle of the light-emitting time of the other light-emitting elements.

6. The display module according to claim 2, characterized in that, The adjustment amount for the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

7. The display module according to claim 1, characterized in that, Within one frame, the start and end points of the emission time of the three light-emitting elements are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

8. The display module according to claim 7, characterized in that, Within one frame, the start and end times of the light emission of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

9. The display module according to claim 1, characterized in that, Within one frame, the emission time of each color light-emitting element is grouped, and then the start and end points of the emission time of each color light-emitting element are adjusted.

10. The display module according to claim 9, characterized in that, Within one frame, the emission times of the light-emitting device with the shortest emission time are grouped to form multiple emission sub-times, so that the emission intervals of red, green and blue light are relatively matched in terms of temporal phase.

11. The display module according to claim 10, characterized in that, Within one frame, the emission time of the light-emitting element with the shortest emission time is divided into at least two emission sub-times.

12. The display module according to claim 11, characterized in that, The control module includes a first counter and a second counter; The second counter is configured to count the number of light-emitting sub-times; The first counter is configured to generate grayscale counting information. After the first counter completes the grayscale counting of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

13. The display module according to claim 10, characterized in that, Within a frame, the emission time of the light-emitting element with the shortest emission time is not evenly divided into at least two emission sub-times.

14. The display module according to claim 10 or 13, characterized in that, Within one frame, the emission time of the remaining light-emitting components is divided into at least two emission sub-times, either evenly or unevenly.

15. The display module according to claim 10 or 13, characterized in that, Within one frame, the light-emitting elements with the shortest emission time have multiple light-emitting sub-emitting times that are evenly distributed.

16. The display module according to claim 10 or 13, characterized in that, Within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the other light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the other light-emitting elements.

17. The display module according to claim 16, characterized in that, The control module includes a first counter and a second counter; The second counter is configured to count the number of light-emitting sub-times; The first counter is configured to generate grayscale counting information, wherein the grayscale counting information is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the remaining light-emitting elements. After the first counter completes the grayscale count of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

18. The display module according to claim 10 or 13, characterized in that, Within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, and D2 is the duty cycle of the light-emitting element with the shortest light-emitting time. Finally, the end point of the light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

19. The display module according to claim 1, characterized in that, The light-emitting area includes a left-eye light-emitting area and a right-eye light-emitting area. The control module is configured to: within one frame, adjust the start and end points of the light-emitting time of each color light-emitting element in the left-eye light-emitting area, and / or adjust the start and end points of the light-emitting time of each color light-emitting element in the right-eye light-emitting area, so that the phases of the light-emitting intervals of red light, green light and blue light are relatively matched in time sequence.

20. The display module according to claim 19, characterized in that, Adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area, and / or adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area, so that the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area is offset from the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area.

21. The display module according to claim 20, characterized in that, The light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area is divided into at least two light emission sub-times.

22. The display module according to claim 20, characterized in that, The light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission areas and the right eye light emission areas is divided into at least two light emission sub-times, and the starting point of the light emission time of the light-emitting element with the shortest light emission time in the other of the left eye light emission areas and the right eye light emission areas is staggered from the starting point of the light emission time of the other light-emitting elements.

23. The display module according to any one of claims 1-22, characterized in that, The red, green, and blue light emitters achieve brightness modulation through one or more PWM pulses. At least two of the pulse start points for the red, green, and blue light emitters are different, and / or at least two of the pulse end points are different, to achieve phase matching.

24. The display module according to any one of claims 1-22, characterized in that, The display module includes a sensor electrically connected to the control module. The sensor is configured to detect environmental parameters. The control module is configured to adjust the start and end points of the emission time of each color light-emitting element within one frame time according to the environmental parameters, so that the emission intervals of red light, green light and blue light are relatively matched in time sequence to avoid or reduce the phenomenon of color breakage. The sensor includes at least one of a temperature sensor and an ambient light sensor.

25. A control method for a display module, characterized in that, The display module includes: The light-emitting area includes multiple pixels, and each pixel includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element; The control method includes: Within one frame, the start and end points of the emission time of each color light-emitting component are adjusted to make the emission intervals of red, green and blue light relatively matched in terms of timing, so as to avoid or reduce the phenomenon of color breakage.

26. The control method according to claim 25, characterized in that, Within one frame, the start and end points of the emission time of the light-emitting device with the shortest emission time are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

27. The control method according to claim 26, characterized in that, Within one frame, the starting point of the light emission time of the light-emitting component with the shortest light emission time is adjusted to be staggered from the starting point of the light emission time of the other light-emitting components.

28. The control method according to claim 27, characterized in that, Within one frame, adjust the start and end points of the light emission time of the light-emitting element with the shortest light emission time, so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements, thereby making the start point of the light emission time of the light-emitting element with the shortest light emission time different from the start point of the light emission time of the other light-emitting elements.

29. The control method according to claim 28, characterized in that, The display module includes a first counter, and the control method includes: the first counter generates grayscale count information of the light-emitting element with the shortest light-emitting time, and the grayscale count information is used to adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time, so that the light-emitting time of the light-emitting element with the shortest light-emitting time is aligned with the middle of the light-emitting time of the other light-emitting elements.

30. The control method according to claim 26, characterized in that, The adjustment amount for the starting point of the light emission time of the light-emitting element with the shortest light emission time is t1, where t1 satisfies 0 < t1 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light emission time and D2 is the duty cycle of the light-emitting element with the shortest light emission time.

31. The control method according to claim 25, characterized in that, Within one frame, the start and end points of the emission time of the three light-emitting elements are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of timing.

32. The control method according to claim 31, characterized in that, Within one frame, the start and end times of the light emission of the three light-emitting elements are adjusted so that the light emission time of the light-emitting element with the shortest light emission time is aligned with the middle of the light emission time of the other light-emitting elements.

33. The control method according to claim 25, characterized in that, Within one frame, the emission time of each color light-emitting element is grouped, and then the start and end points of the emission time of each color light-emitting element are adjusted.

34. The control method according to claim 33, characterized in that, Within one frame, the emission times of the light-emitting device with the shortest emission time are grouped to form multiple emission sub-times, so that the emission intervals of red, green and blue light are relatively matched in terms of temporal phase.

35. The control method according to claim 34, characterized in that, Within one frame, the emission time of the light-emitting element with the shortest emission time is divided into at least two emission sub-times.

36. The control method according to claim 35, characterized in that, The display module includes a first counter and a second counter; The control method includes: the second counter counting the number of light-emitting times; The first counter generates grayscale counting information. After the first counter completes the grayscale counting of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

37. The control method according to claim 34, characterized in that, Within a frame, the emission time of the light-emitting element with the shortest emission time is not evenly divided into at least two emission sub-times.

38. The control method according to claim 34 or 37, characterized in that, Within one frame, the emission time of the remaining light-emitting components is divided into at least two emission sub-times, either evenly or unevenly.

39. The control method according to claim 34 or 37, characterized in that, Within one frame, the light-emitting elements with the shortest emission time have multiple light-emitting sub-emitting times that are evenly distributed.

40. The control method according to claim 34 or 37, characterized in that, Within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the first light-emitting sub-time is the same as the starting point of the light-emitting time of the other light-emitting elements, and the ending point of the last light-emitting sub-time is the same as the ending point of the light-emitting time of the other light-emitting elements.

41. The control method according to claim 40, characterized in that, The display module includes a first counter and a second counter; The control method includes: the second counter counting the number of light-emitting times; The first counter generates grayscale counting information, which is used to make the starting point of the first light-emitting sub-time the same as the starting point of the light-emitting time of the remaining light-emitting elements, and the ending point of the last light-emitting sub-time the same as the ending point of the light-emitting time of the remaining light-emitting elements. After the first counter completes the grayscale count of one light-emitting sub-time, the second counter increments the count of the light-emitting sub-time by one until the count of the light-emitting sub-time by the second counter is equal to the total number of light-emitting sub-times in one frame.

42. The control method according to claim 34 or 37, characterized in that, Within one frame, among the multiple light-emitting sub-times of the light-emitting element with the shortest light-emitting time, the starting point of the light-emitting sub-time is adjusted by an adjustment amount of t2, where t2 satisfies 0 < t2 ≤ (D1 - D2) / 2, where D1 is the duty cycle of the light-emitting element with the longest light-emitting time, and D2 is the duty cycle of the light-emitting element with the shortest light-emitting time. Finally, the end point of the light-emitting sub-time is no later than the end point of the light-emitting time of the light-emitting element with the longest light-emitting time.

43. The control method according to claim 25, characterized in that, The light-emitting area includes a left-eye light-emitting area and a right-eye light-emitting area. The control method includes: within one frame, adjusting the start and end points of the light-emitting time of each color light-emitting element in the left-eye light-emitting area, and / or adjusting the start and end points of the light-emitting time of each color light-emitting element in the right-eye light-emitting area, so that the phases of the light-emitting intervals of red light, green light and blue light are relatively matched in time.

44. The control method according to claim 43, characterized in that, Adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area, and / or adjust the start and end points of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area, so that the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the left eye light-emitting area is offset from the start point of the light-emitting time of the light-emitting element with the shortest light-emitting time in the right eye light-emitting area.

45. The control method according to claim 44, characterized in that, The light emission time of the light-emitting element with the shortest light emission time in the left eye light emission area is divided into at least two light emission sub-times, and / or the light emission time of the light-emitting element with the shortest light emission time in the right eye light emission area is divided into at least two light emission sub-times.

46. ​​The control method according to claim 44, characterized in that, The light emission time of the light-emitting element with the shortest light emission time in one of the left eye light emission areas and the right eye light emission areas is divided into at least two light emission sub-times, and the starting point of the light emission time of the light-emitting element with the shortest light emission time in the other of the left eye light emission areas and the right eye light emission areas is staggered from the starting point of the light emission time of the other light-emitting elements.

47. The control method according to any one of claims 25-46, characterized in that, The red, green, and blue light emitters achieve brightness modulation through one or more PWM pulses. At least one of the pulse start and end points for the red, green, and blue light emitters is different to achieve phase matching.

48. The control method according to any one of claims 25-46, characterized in that, The display module includes a sensor configured to detect environmental parameters, the sensor including at least one of a temperature sensor and an ambient light sensor, and the control method includes: Based on the environmental parameters, within one frame, the start and end points of the emission time of each color light-emitting component are adjusted so that the emission intervals of red, green and blue light are relatively matched in terms of phase in time, so as to avoid or reduce the phenomenon of color breakage.

49. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the control method according to any one of claims 25-48.

50. A display device, characterized in that, Includes the display module as described in any one of claims 1-24.

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