Data transmission method for microdisplay panel, microdisplay system, microdisplay panel, and near-eye display device

Abstract

A data transmission method for a microdisplay panel (10), a microdisplay system, a microdisplay panel, and a near-eye display device, relating to the technical field of microdisplay. The data transmission method for the microdisplay panel (10) comprises: in response to powering on the microdisplay panel (10) (S10); clearing data in preset storage regions (1011, 10212) of the microdisplay panel (10) (S11); and after the data is cleared, transmitting pixel grayscale data to the microdisplay panel (10) (S12). When the microdisplay panel (10) is powered on, the data in the preset storage regions (1011, 10212) is cleared to avoid the problem of a screen display abnormality caused by the occurrence of a random value in the preset storage regions (1011, 10212) after power-on, thereby improving the screen display quality.

Description

Data transmission method for micro display panel, micro display system, micro display panel, near-eye display device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 21, 2024, with application number 2024101950452 and invention name “Data transmission method for micro display panel, micro display system, micro display panel, near-eye display device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the field of micro-display technology, and in particular to a data transmission method for a micro-display panel, a micro-display system, a micro-display panel, and a near-eye display device. Background Art

[0003] Micro LED (micro light-emitting diode) display refers to a display technology that utilizes micron-sized LED pixel units and bonds them to a driver panel to form a high-density LED display array. Due to the small size, high integration, and self-luminescence of Micro LED chips, they offer significant advantages over LCDs (liquid crystal displays) and OLEDs (organic light-emitting diodes) in terms of brightness, resolution, contrast, energy consumption, lifespan, response speed, and thermal stability. Early LED display pixels were composed of LEDs using the three primary colors of red, green, and blue (R / G / B).

[0004] The Micro LED micro display panel includes a pixel array, a row driver, a column driver, a display controller, and a frame buffer. The row driver and the column driver are electrically connected to the pixel array, the frame buffer is electrically connected to the pixel array, and the display controller is electrically connected to the row driver, the column driver, and the frame buffer. The frame buffer has several storage areas that can store a complete frame of pixel grayscale values; each pixel in the pixel array also has several pixel storage areas for storing pixel grayscale data. When the Micro LED micro display panel needs to display a picture, a complete frame of pixel grayscale values ​​is loaded into the frame buffer, and then the column driver drives the pixel grayscale values ​​to the pixel storage area of ​​the pixel array, controlling the row driver to scan the grayscale data stored in the pixel storage area of ​​the pixel array to achieve the purpose of displaying different grayscales.

[0005] However, there are still many problems with Micro LED micro display panels in the existing technology.

[0006] Summary of the Invention

[0007] The technical problem solved by the present invention is to provide a data transmission method for a micro display panel, a micro display system, a micro display panel, and a near-eye display device to improve the quality of picture display.

[0008] To solve the above problems, the technical solution of the present invention provides a data transmission method for a micro display panel, comprising: in response to power-on of the micro display panel; clearing the data in a preset storage area of ​​the micro display panel; after the data is cleared, transmitting pixel grayscale data to the micro display panel.

[0009] Optionally, the method for clearing the data in the preset storage area of ​​the micro display panel includes: clearing the data in the preset storage area by using a clearing module configured in the micro display panel.

[0010] Optionally, the clearing module is a clearing register configured in the micro display panel.

[0011] Optionally, the method for clearing the data in the preset storage area of ​​the micro display panel includes: clearing the data in the preset storage area in response to a clear instruction received by the micro display panel.

[0012] Optionally, the reset instruction is sent to the micro display panel by a host computer, and the host computer sends the reset instruction to the micro display panel when the micro display panel is powered on.

[0013] Optionally, the data in the preset storage area is cleared during the execution of the initialization program by the micro display panel.

[0014] Optionally, the method for the micro display panel to execute the initialization program includes: executing the initialization program in response to an initialization instruction received by the micro display panel.

[0015] Optionally, the initialization instruction is sent to the micro display panel by a host computer, and the host computer sends the initialization instruction to the micro display panel when the micro display panel is powered on.

[0016] Optionally, clearing the data in the preset storage area of ​​the micro display panel at least includes: clearing the data in the first pixel storage area of ​​the frame buffer of the micro display panel.

[0017] Optionally, clearing the data in the preset storage area of ​​the micro display panel further includes: clearing the data in the second pixel storage area of ​​the pixel array of the micro display panel.

[0018] Correspondingly, the technical solution of the present invention also provides a micro display system, including: a micro display panel, including a preset storage area, the preset storage area is used to store pixel grayscale data; a clearing module, used to clear the data in the preset storage area when the micro display panel is powered on.

[0019] Optionally, the clearing module is a clearing register configured in the micro display panel.

[0020] Optionally, it also includes: a host computer communicatively connected to the micro display panel, an initialization module being provided in the host computer; the host computer is used to control the initialization module to send an initialization instruction to the micro display panel when the micro display panel is powered on, so that the micro display panel executes the initialization program, and the clearing module clears the data in the preset storage area during the execution of the initialization program by the micro display panel.

[0021] Optionally, it also includes: a host computer communicatively connected to the micro display panel, the clearing module is configured in the host computer, and the host computer is used to control the clearing module to send a clearing instruction to the micro display panel when the micro display panel is powered on, so as to clear the data in the preset storage area.

[0022] Optionally, it also includes: an initialization module configured in the host computer, the host computer is used to control the initialization module to send an initialization instruction to the micro display panel when the micro display panel is powered on, so that the micro display panel executes the initialization program, and the clearing module clears the data in the preset storage area during the execution of the initialization program by the micro display panel.

[0023] Optionally, the micro display panel also includes: a frame buffer, including a first pixel storage area; a pixel array, electrically connected to the frame buffer, including a plurality of pixel points, each of the pixel points including a light-emitting unit and a second pixel storage area electrically connected to each other; wherein the frame buffer is used to drive the data in the first pixel storage area to the second pixel storage area.

[0024] Optionally, the micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, and the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and to control the row driving circuit to scan the data in the second pixel storage area.

[0025] Optionally, the preset storage area includes: the first pixel storage area; the clearing module is connected to the display controller and the frame buffer respectively, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer.

[0026] Optionally, the preset storage area also includes: the second pixel storage area; the clearing module is respectively connected to the display controller, the frame buffer and the pixel array, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array.

[0027] Correspondingly, the technical solution of the present invention also provides a micro display panel, including: a pixel array, including multiple pixel points, each pixel point including a light-emitting unit and a second pixel storage area electrically connected to each other; a frame buffer, electrically connected to the pixel array, including a first pixel storage area, the frame buffer is used to drive the data in the first pixel storage area to the second pixel storage area; a clearing module, the clearing module is electrically connected to at least the frame buffer, and in response to the micro display panel being powered on, is used to clear the pixel grayscale data in the first pixel storage area.

[0028] Optionally, the clearing module is also electrically connected to the pixel array, and is further configured to clear the pixel grayscale data in the second pixel storage area in response to the micro display panel being powered on.

[0029] Optionally, the micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and control the row driving circuit to scan the data in the second pixel storage area; the clearing module is respectively connected to the display controller and the frame buffer, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer.

[0030] Optionally, the micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and control the row driving circuit to scan the data in the second pixel storage area; the clearing module is respectively connected to the display controller, the frame buffer and the pixel array, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array.

[0031] Correspondingly, the technical solution of the present invention further provides a near-eye display device, comprising: a micro display panel as described in any one of the above technical solutions.

[0032] Correspondingly, the technical solution of the present invention further provides a near-eye display device, comprising: a micro-display system as described in any one of the above technical solutions.

[0033] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0034] In the data transmission method of the micro display panel of the technical solution of the present invention, the data in the preset storage area is cleared when the micro display panel is powered on, thereby avoiding the problem of random values ​​appearing in the preset storage area after power-on and causing abnormal screen display, thereby improving the quality of screen display.

[0035] Furthermore, clearing the data in the preset storage area of ​​the micro display panel includes: clearing the data in the first pixel storage area of ​​the frame buffer of the micro display panel; and clearing the data in the second pixel storage area of ​​the pixel array of the micro display panel. Since the data in the first pixel storage area will be driven to the second pixel storage area, the data in the second pixel storage area will also be cleared after the data in the first pixel storage area is cleared. However, the data driving process requires a certain amount of time. During this period, if the second pixel storage area has random values ​​after power-on, it will still affect the picture display quality. Therefore, by clearing the data in the first pixel storage area and the second pixel storage area at the same time, the data can be updated quickly, avoiding the problem of abnormal picture display during the process of the frame buffer driving the data in the first pixel storage area to the second pixel storage area.

[0036] In the micro-display system of the technical solution of the present invention, when the micro-display panel is powered on, the data in the preset storage area is cleared by the clearing module to avoid the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on, thereby improving the quality of screen display.

[0037] Furthermore, the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array. Since the data in the first pixel storage area will be driven to the second pixel storage area, the data in the second pixel storage area will also be cleared after the data in the first pixel storage area is cleared. However, the data driving process takes a certain amount of time. During this period, if random values ​​appear in the second pixel storage area after power-on, it will still affect the picture display quality. Therefore, by clearing the data in the first pixel storage area and the second pixel storage area at the same time, the data can be updated quickly, avoiding the problem of abnormal picture display during the process of the frame buffer driving the data in the first pixel storage area to the second pixel storage area.

[0038] In the micro display panel of the technical solution of the present invention, when the micro display panel is powered on, the data in the preset storage area is cleared by the clearing module to avoid the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on, thereby improving the quality of screen display.

[0039] Furthermore, the clearing module is connected to the display controller, the frame buffer and the pixel array respectively, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array. Since the data in the first pixel storage area will be driven to the second pixel storage area, after the data in the first pixel storage area is cleared, the data in the second pixel storage area will also be cleared. However, the data driving process requires a certain amount of time. During this period, if random values ​​appear in the second pixel storage area after power-on, it will still affect the picture display quality. Therefore, by clearing the data in the first pixel storage area and the second pixel storage area at the same time, the data can be updated quickly, avoiding the problem of abnormal picture display during the process of the frame buffer driving the data in the first pixel storage area to the second pixel storage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is a flowchart of a method for transmitting data in a micro display panel according to an embodiment of the present invention;

[0041] FIG2 is a schematic structural diagram of a micro display system according to an embodiment of the present invention;

[0042] FIG3 is a schematic structural diagram of a micro display system according to another embodiment of the present invention;

[0043] FIG4 is a schematic structural diagram of a micro display system according to another embodiment of the present invention;

[0044] FIG5 is a flowchart of a sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG1 ;

[0045] FIG6 is a flowchart of another sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG1 ;

[0046] FIG7 is a flowchart of one sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG5 ;

[0047] FIG8 is a flowchart of one sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG6 ;

[0048] FIG9 is a flowchart of another sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG5 ;

[0049] FIG. 10 is a flowchart of another sub-step of the data transmission method of the micro display panel according to the embodiment shown in FIG. 6 . DETAILED DESCRIPTION

[0050] As mentioned in the background art, there are still many problems with Micro LED micro display panels in the prior art, which will be explained in detail below.

[0051] During the operation of existing Micro LED micro-display panels, when the frame buffer and the pixel storage area under the pixel array are powered on again after a power outage, different potentials will be generated due to interference from the manufacturing process, the external electromagnetic environment, etc., resulting in randomized storage values, causing abnormal display of the pixel array and, in turn, abnormal screen display problems.

[0052] On this basis, the present invention provides a data transmission method for a micro-display panel, a micro-display system, a micro-display panel, and a near-eye display device. By clearing the data in a preset storage area when the micro-display panel is powered on, the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on is avoided, thereby improving the quality of the screen display.

[0053] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0054] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," and "bottom" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate description and simplify the present invention. They are not intended to indicate or imply that the positions or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used solely to distinguish an entity or operation from another entity or operation and do not require or imply any actual relationship, order, or relative importance between these entities or operations.

[0055] Figure 1 is a step flow chart of a data transmission method for a micro display panel according to an embodiment of the present invention; Figure 2 is a structural schematic diagram of a micro display system according to an embodiment of the present invention; Figure 3 is a structural schematic diagram of a micro display system according to another embodiment of the present invention; Figure 4 is a structural schematic diagram of a micro display system according to yet another embodiment of the present invention; Figure 5 is a sub-step flow chart of a data transmission method for the micro display panel according to the embodiment shown in Figure 1; Figure 6 is a sub-step flow chart of a data transmission method for the micro display panel according to the embodiment shown in Figure 1; Figure 7 is a sub-step flow chart of a sub-step of a data transmission method for the micro display panel according to the embodiment shown in Figure 5; Figure 8 is a sub-step flow chart of a sub-step of a data transmission method for the micro display panel according to the embodiment shown in Figure 6; Figure 9 is a sub-step flow chart of a sub-step of a data transmission method for the micro display panel according to the embodiment shown in Figure 5; and Figure 10 is a sub-step flow chart of a sub-step of a data transmission method for the micro display panel according to the embodiment shown in Figure 6.

[0056] Please refer to Figure 1, a data transmission method for a micro display panel includes step S10: responding to power-on of the micro display panel 10; step S11: clearing data in a preset storage area of ​​the micro display panel 10; step S12: after the data is cleared, transmitting pixel grayscale data to the micro display panel.

[0057] By clearing the data in the preset storage area when the micro display panel 10 is powered on, the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on is avoided, such as bright spots, bright lines or screen distortion of varying degrees, etc., so that the micro display panel 10 can remain in a completely dark state after power-on, so that the displayed screen meets expectations, thereby improving the quality of the screen display.

[0058] In some embodiments, the micro display panel 10 is a Micro LED micro display panel.

[0059] Referring to Figures 2 to 4 , in some embodiments, a microdisplay panel 10 includes a frame buffer 101 and a pixel array 102. The frame buffer 101 includes a first pixel storage area 1011, and the pixel array 102 includes a plurality of pixels 1021. Each pixel 1021 includes an electrically connected light-emitting unit 10211 and a second pixel storage area 10212. The frame buffer 101 is electrically connected to the pixel array 102 via a driving circuit, and data in the first pixel storage area 1011 of the frame buffer 101 can be driven to the second pixel storage area 10212.

[0060] Continuing to refer to FIG. 2 to FIG. 4 , and in conjunction with FIG. 5 , in some embodiments, clearing the data in the preset storage area of ​​the micro display panel 10 in step S11 includes step S111a of clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro display panel 10. Since the data in the first pixel storage area 1011 of the frame buffer 101 will be driven to the second pixel storage area 10212, the data in the second pixel storage area 10212 will eventually be cleared to improve the quality of the image display.

[0061] Continuing to refer to Figures 2 to 4 , and in conjunction with Figure 6 , in some embodiments, clearing the data in the preset storage area of ​​the microdisplay panel 10 in step S11 includes step S111b: clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10, and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10. Since the data in the first pixel storage area 1011 will be driven to the second pixel storage area 10212, the data in the second pixel storage area 10212 will also be cleared after the data in the first pixel storage area 1011 is cleared. However, the data driving process takes a certain amount of time, and during this period, if the second pixel storage area 10212 displays random values ​​after power-on, it will still affect the display quality. Therefore, by simultaneously clearing the data in the first pixel storage area 1011 and the second pixel storage area 10212, data can be updated quickly, avoiding the problem of abnormal screen display when the frame buffer 101 drives the data in the first pixel storage area 1011 to the second pixel storage area 10212.

[0062] Please continue to refer to Figures 2 to 4. In some embodiments, the micro display panel 10 also includes: a display controller 103, a row driving circuit 104 and a column driving circuit 105. The row driving circuit 104 and the column driving circuit 105 are electrically connected to the pixel array 102 respectively, and the column driving circuit 105 is also electrically connected to the frame buffer 101. The display controller 103 is electrically connected to the row driving circuit 104 and the column driving circuit 105. The display controller 103 is used to control the column driving circuit 105 to drive the data in the first pixel storage area 1011 to the second pixel storage area 10212, and to control the row driving circuit 104 to scan the data in the second pixel storage area 10212. During the operation of the micro display panel 10, a complete frame of pixel grayscale values ​​sent from the host computer 30 (only shown in Figure 4) can be loaded into the first pixel storage area 1011 in the frame buffer 101, and then the column driving circuit 105 drives the pixel grayscale value to the second pixel storage area 10212 under the pixel array 102. The row driving circuit 104 scans the second pixel storage area 10212 to generate a pulse modulation signal to achieve the purpose of displaying different grayscales.

[0063] Continuing with Figures 2 to 4 , in some embodiments, frame buffer 101 utilizes static random-access memory (SRAM). The term "static" refers to the fact that the data stored in this memory remains permanently as long as power is supplied. Frame buffer 101 is made of a volatile storage medium that loses power. The data stored in the SRAM disappears when power is lost. SRAM offers advantages such as high speed, high bandwidth, and ease of control, and is often used as a cache.

[0064] Continuing to refer to FIG. 2 and FIG. 5 , and in conjunction with FIG. 7 , in some embodiments, the data in the preset storage area in step S11 is cleared by a clearing module 20 disposed within the microdisplay panel 10. Therefore, the corresponding step S111a for clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 includes step S1111a1: clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 by the clearing module 20 disposed within the microdisplay panel 10. The clearing module 20 needs to be electrically connected to the frame buffer 101; in some embodiments, the clearing module 20 is a clearing register disposed within the microdisplay panel 10.

[0065] Continuing to refer to FIG. 3 and FIG. 6 , in conjunction with FIG. 8 , in some embodiments, the data in the preset storage area in step S11 is cleared by a clearing module 20 configured within the microdisplay panel 10. Therefore, the corresponding steps of clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 in step S111b include step S1111b1: clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 by the clearing module 20 configured within the microdisplay panel 10. The corresponding clearing module 20 needs to be electrically connected to the frame buffer 101 and the pixel array 102, respectively. In some embodiments, the clearing module 20 is a clearing register configured within the microdisplay panel 10.

[0066] Continuing to refer to Figures 4 and 5 , and in conjunction with Figure 9 , in some embodiments, the data in the preset storage area in step S11 is cleared in response to a clear instruction received by the microdisplay panel 10. The clear instruction is sent by the host computer 30 to the microdisplay panel 10, and the host computer 30 sends the clear instruction to the microdisplay panel 10 when the microdisplay panel 10 is powered on. Therefore, the clearing of the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 in step S111a includes step S1111a2: clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 in response to the clear instruction received by the microdisplay panel 10. The corresponding microdisplay panel 10 needs to be communicatively connected to the host computer 30.

[0067] Continuing to refer to FIG. 4 and FIG. 6 , in conjunction with FIG. 10 , in some embodiments, the data in the preset storage area in step S11 is cleared in response to a clear instruction received by the microdisplay panel 10. The clear instruction is sent by the host computer 30 to the microdisplay panel 10, and the host computer 30 sends the clear instruction to the microdisplay panel 10 when the microdisplay panel 10 is powered on. Therefore, the clearing of the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and the clearing of the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 in step S111b includes step S1111b2: clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and the clearing of the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 in response to the clear instruction received by the microdisplay panel 10. The corresponding microdisplay panel 10 needs to be communicatively connected to the host computer 30.

[0068] Continuing with FIG. 7 , in some embodiments, the data in the preset storage area in step S11 is cleared during the execution of the initialization procedure by the micro-display panel 10. The method for the micro-display panel 10 to execute the initialization procedure includes: executing the initialization procedure in response to an initialization instruction received by the micro-display panel 10, the initialization instruction being sent to the micro-display panel 10 by the host computer 30, and the host computer 30 sending the initialization instruction to the micro-display panel 10 when the micro-display panel 10 is powered on. Therefore, corresponding to clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 in step S111a, the method further includes step S1112a1: during the execution of the initialization procedure by the micro-display panel 10, clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 by a clearing module 20 configured within the micro-display panel 10.

[0069] Continuing with FIG8 , in some embodiments, the data in the preset storage area in step S11 is cleared during the execution of the initialization procedure by the micro-display panel 10. The method for the micro-display panel 10 to execute the initialization procedure includes: executing the initialization procedure in response to an initialization instruction received by the micro-display panel 10, the initialization instruction being sent to the micro-display panel 10 by the host computer 30, and the host computer 30 sending the initialization instruction to the micro-display panel 10 when the micro-display panel 10 is powered on. Therefore, the steps corresponding to clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the micro-display panel 10 in step S111b include step S1112b1: during the execution of the initialization procedure by the micro-display panel 10, clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the micro-display panel 10 by the clearing module 20 configured in the micro-display panel 10.

[0070] Continuing with FIG9 , in some embodiments, the data in the preset storage area in step S11 is cleared during the execution of the initialization procedure by the micro-display panel 10. The method for the micro-display panel 10 to execute the initialization procedure includes: executing the initialization procedure in response to an initialization instruction received by the micro-display panel 10, the initialization instruction being sent to the micro-display panel 10 by the host computer 30, and the host computer 30 sending the initialization instruction to the micro-display panel 10 when the micro-display panel 10 is powered on. Therefore, the step corresponding to clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 in step S111a includes step S1112a2: during the execution of the initialization procedure by the micro-display panel 10, clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the micro-display panel 10 in response to the clear instruction received by the micro-display panel 10.

[0071] Continuing with FIG. 10 , in some embodiments, the data in the preset storage area in step S11 is cleared during the execution of the initialization procedure by the microdisplay panel 10. The method for the microdisplay panel 10 to execute the initialization procedure includes: executing the initialization procedure in response to an initialization instruction received by the microdisplay panel 10, the initialization instruction being sent to the microdisplay panel 10 by the host computer 30, and the host computer 30 sending the initialization instruction to the microdisplay panel 10 when the microdisplay panel 10 is powered on. Therefore, the steps corresponding to clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 in step S111b include step S1112b2: during the execution of the initialization procedure by the microdisplay panel 10, clearing the data in the first pixel storage area 1011 of the frame buffer 101 of the microdisplay panel 10 and clearing the data in the second pixel storage area 10212 of the pixel array 102 of the microdisplay panel 10 in response to the clear instruction received by the microdisplay panel 10.

[0072] In step S12 : after the data is cleared, the pixel grayscale data is transmitted to the micro display panel for normal display of the micro display panel.

[0073] Correspondingly, a micro-display system is also provided in an embodiment of the present invention, please continue to refer to Figures 2 to 4, including: a micro-display panel 10, including a preset storage area, the preset storage area is used to store pixel grayscale data; a clearing module 20, used to clear the data in the preset storage area when the micro-display panel 10 is powered on.

[0074] When the micro display panel 10 is powered on, the data in the preset storage area is cleared by the clearing module 20 to avoid the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on, thereby improving the quality of screen display.

[0075] 2 and 3 , in some embodiments, the clearing module 20 is a clearing register configured in the micro display panel 10 .

[0076] Please continue to refer to Figures 2 and 3. In some embodiments, the micro display system also includes: a host computer (not shown) that is communicatively connected to the micro display panel 10, and an initialization module (not shown) is provided in the host computer; the host computer is used to control the initialization module to send an initialization instruction to the micro display panel 10 when the micro display panel 10 is powered on, so that the micro display panel 10 executes the initialization program, and the clearing module 20 clears the data in the preset storage area during the execution of the initialization program by the micro display panel 10.

[0077] Please continue to refer to Figure 4. In some embodiments, the micro display system also includes: a host computer 30 that is communicatively connected to the micro display panel 10, and the clearing module 20 is configured in the host computer 30. The host computer 30 is used to control the clearing module 20 to send a clearing instruction to the micro display panel 10 when the micro display panel 10 is powered on, so as to clear the data in the preset storage area.

[0078] Please continue to refer to Figure 4. In some embodiments, the micro display system also includes: an initialization module (not shown) configured in the host computer 30, and the host computer 30 is used to control the initialization module to send an initialization instruction to the micro display panel 10 when the micro display panel 10 is powered on, so that the micro display panel 10 executes the initialization program, and the clearing module 20 clears the data in the preset storage area during the execution of the initialization program by the micro display panel 10.

[0079] Please continue to refer to Figures 2 to 4. In some embodiments, the micro display panel also includes: a frame buffer 101, including a first pixel storage area 1011; a pixel array 102, electrically connected to the frame buffer 101, including a plurality of pixel points 1021, each pixel point 1021 including a light-emitting unit 10211 and a second pixel storage area 10212 electrically connected to each other; wherein the frame buffer 101 is used to drive data in the first pixel storage area 1011 to the second pixel storage area 10212.

[0080] Continuing with reference to FIG. 2 and FIG. 4 , in some embodiments, the preset storage area includes a first pixel storage area 1011, and the corresponding clearing module 20 needs to be electrically connected to the frame buffer 101 (as shown in FIG. 2 ). Since the data in the first pixel storage area 1011 of the frame buffer 101 will be driven to the second pixel storage area 10212, the data in the second pixel storage area 10212 will eventually be cleared to improve the quality of the image display.

[0081] Please continue to refer to Figures 3 and 4. In some embodiments, the preset storage area includes: a first pixel storage area 1011 and a second pixel storage area 10212. The corresponding clearing module 20 needs to be electrically connected to the frame buffer 101 and the pixel array 102 respectively (as shown in Figure 3). Since the data in the first pixel storage area 1011 will be driven to the second pixel storage area 10212, after the data in the first pixel storage area 1011 is cleared, the data in the second pixel storage area 10212 will also be cleared. However, the data-driven process requires a certain amount of time. During this period, if the second pixel storage area 10212 has random values ​​after power-on, it will still affect the picture display quality. Therefore, by simultaneously clearing the data in the first pixel storage area 1011 and the second pixel storage area 10212, data updating can be made fast, avoiding the problem of abnormal picture display during the process of the frame buffer 101 driving the data in the first pixel storage area 1011 to the second pixel storage area 10212.

[0082] Correspondingly, a micro display panel is also provided in an embodiment of the present invention, please continue to refer to Figures 2 to 3, including: a pixel array 102, including a plurality of pixel points 1021, each pixel point 1021 including a light-emitting unit 10211 and a second pixel storage area 10212 electrically connected to each other; a frame buffer 101, electrically connected to the pixel array 102, including a first pixel storage area 1011, the frame buffer 101 is used to drive the data in the first pixel storage area 1011 to the second pixel storage area 10211; a clearing module 20, the clearing module 20 is at least electrically connected to the frame buffer 101, and in response to the micro display panel 10 being powered on, is used to clear the pixel grayscale data in the first pixel storage area 1011.

[0083] When the micro display panel 10 is powered on, the data in the preset storage area is cleared by the clearing module 20 to avoid the problem of abnormal screen display caused by random values ​​appearing in the preset storage area after power-on, thereby improving the quality of screen display.

[0084] Continuing with reference to FIG3 , in some embodiments, the clearing module 20 is further electrically connected to the pixel array 102 and, in response to powering on the micro display panel 10, is further configured to clear the pixel grayscale data in the second pixel storage area 10212. Since the data in the first pixel storage area 1011 is driven to the second pixel storage area 10212, after the data in the first pixel storage area 1011 is cleared, the data in the second pixel storage area 10212 is also cleared. However, the data driving process takes a certain amount of time, and during this period, if random values ​​appear in the second pixel storage area 10212 after powering on, the image display quality will still be affected. Therefore, by simultaneously clearing the data in the first pixel storage area 1011 and the second pixel storage area 10212, data updates can be accelerated, avoiding the problem of abnormal image display during the process of the frame buffer 101 driving the data in the first pixel storage area 1011 to the second pixel storage area 10212.

[0085] Correspondingly, an embodiment of the present invention further provides a near-eye display device, comprising: a micro display panel as described in any one of the above embodiments.

[0086] Correspondingly, an embodiment of the present invention further provides a near-eye display device, including: a micro-display system as in any one of the above embodiments.

[0087] The micro display panel 10 described above has a very small volume, and the length and width dimensions are between 500 μm and 50,000 μm.

[0088] The light emitting area of ​​the micro display panel 10 described above is very small, such as 1 mm×1 mm, 2.64 mm×2.02 mm, 3 mm×5 mm, etc.

[0089] The light-emitting area of ​​the microdisplay panel 10 described above includes a plurality of micro-LED pixels arranged in an array. The specific pixel arrangement can be one of 320×240, 640×480, 1600×1200, 1920×1080, and 2560×1440. The size of a single micro-LED pixel is between 100 nm and 100 microns. In some embodiments, the size of a single micro-LED pixel is between 150 nm and 15 microns. In some embodiments, the size of a single micro-LED pixel can be less than 10 microns.

[0090] A driving backplane is provided on the back of the micro-LED pixel array, and the driving backplane is electrically connected to the micro-LEDs in the micro-LED pixel array. The driving backplane can obtain signals such as image data from the outside world, and can control the corresponding micro-LEDs to emit light or not. The driving backplane is a TFT (Thin Film Transistor) board or an IC (Integrated Circuit) board. For example, the frame buffer 101, the column driving circuit 105, and the row driving circuit 104 are integrated in the driving backplane of the micro-display panel 10 described above. When driving multiple micro-LED pixels in the micro-LED pixel array, it is possible to adopt a single pixel independent driving method or a multiple pixel unit independent driving method. The specific driving method should not constitute a limitation to the present application.

[0091] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A data transmission method for a micro display panel, characterized in that: include: In response to the micro display panel being powered on; clearing the data in the preset storage area of ​​the micro display panel; After the data is cleared, the pixel grayscale data is transmitted to the micro display panel.

2. The data transmission method of a micro display panel according to claim 1, wherein: The method for clearing the data in the preset storage area of ​​the micro display panel includes: clearing the data in the preset storage area by using a clearing module configured in the micro display panel.

3. The data transmission method of a micro display panel according to claim 2, wherein: The clearing module is a clearing register configured in the micro display panel.

4. The data transmission method of a micro display panel according to claim 1, wherein: The method for clearing the data in the preset storage area of ​​the micro display panel includes: clearing the data in the preset storage area in response to a clear instruction received by the micro display panel.

5. The data transmission method of a micro display panel according to claim 4, wherein: The reset instruction is sent by the host computer to the micro display panel, and the host computer sends the reset instruction to the micro display panel when the micro display panel is powered on.

6. The data transmission method of a micro display panel according to claim 1, wherein: The data in the preset storage area is cleared during the execution of the initialization program by the micro display panel.

7. The data transmission method of a micro display panel according to claim 6, wherein: The method for the micro display panel to execute the initialization program includes: executing the initialization program in response to an initialization instruction received by the micro display panel.

8. The data transmission method of a micro display panel according to claim 7, wherein: The initialization instruction is sent to the micro display panel by a host computer, and the host computer sends the initialization instruction to the micro display panel when the micro display panel is powered on.

9. The data transmission method of a micro display panel according to claim 1, wherein: Clearing the data in the preset storage area of ​​the micro display panel at least includes: clearing the data in the first pixel storage area of ​​the frame buffer of the micro display panel.

10. The data transmission method of a micro display panel according to claim 9, wherein: Clearing the data in the preset storage area of ​​the micro display panel further includes: clearing the data in the second pixel storage area of ​​the pixel array of the micro display panel.

11. A micro display system, characterized in that: include: The micro display panel includes a preset storage area for storing pixel grayscale data; The clearing module is used to clear the data in the preset storage area when the micro display panel is powered on.

12. The micro display system according to claim 11, wherein: The clearing module is a clearing register configured in the micro display panel.

13. The micro display system according to claim 12, wherein: Also includes: A host computer is communicatively connected to the micro display panel, and an initialization module is provided in the host computer; the host computer is used to control the initialization module to send an initialization instruction to the micro display panel when the micro display panel is powered on, so that the micro display panel executes the initialization program, and the clearing module clears the data in the preset storage area during the execution of the initialization program by the micro display panel.

14. The micro display system according to claim 11, wherein: It also includes: a host computer connected to the micro display panel for communication, the clearing module is configured in the host computer, and the host computer is used to control the clearing module to send a clearing instruction to the micro display panel when the micro display panel is powered on to clear the data in the preset storage area.

15. The micro display system according to claim 14, wherein: Also includes: An initialization module is configured in the host computer, and the host computer is used to control the initialization module to send an initialization instruction to the micro display panel when the micro display panel is powered on, so that the micro display panel executes the initialization program, and the clearing module clears the data in the preset storage area during the execution of the initialization program by the micro display panel.

16. The micro display system according to claim 11, wherein: The micro display panel also includes: a frame buffer, including a first pixel storage area; a pixel array, electrically connected to the frame buffer, including a plurality of pixel points, each of the pixel points including a light-emitting unit and a second pixel storage area electrically connected to each other; wherein the frame buffer is used to drive data in the first pixel storage area to the second pixel storage area.

17. The micro display system according to claim 16, wherein: The micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, and the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and control the row driving circuit to scan the data in the second pixel storage area.

18. The micro display system according to claim 17, wherein: The preset storage area includes: the first pixel storage area; the clearing module is connected to the display controller and the frame buffer respectively, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer.

19. The micro display system according to claim 18, wherein: The preset storage area also includes: the second pixel storage area; the clearing module is respectively connected to the display controller, the frame buffer and the pixel array, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array.

20. A micro display panel, characterized in that: include: A pixel array comprising a plurality of pixel points, each of the pixel points comprising a light emitting unit and a second pixel storage area electrically connected to each other; a frame buffer electrically connected to the pixel array, comprising a first pixel storage area, the frame buffer being configured to drive data in the first pixel storage area to the second pixel storage area; A clearing module is electrically connected to at least the frame buffer and is configured to clear the pixel grayscale data in the first pixel storage area in response to power-on of the micro display panel.

21. The micro display panel according to claim 20, wherein: The clearing module is also electrically connected to the pixel array, and is further configured to clear the pixel grayscale data in the second pixel storage area in response to power-on of the micro display panel.

22. The micro display panel according to claim 20, wherein: The micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and control the row driving circuit to scan the data in the second pixel storage area; the clearing module is connected to the display controller and the frame buffer respectively, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer.

23. The micro display panel according to claim 20, wherein: The micro display panel also includes: a display controller, a row driving circuit and a column driving circuit, the row driving circuit and the column driving circuit are electrically connected to the pixel array respectively, the display controller is used to control the column driving circuit to drive the data in the first pixel storage area to the second pixel storage area, and control the row driving circuit to scan the data in the second pixel storage area; the clearing module is connected to the display controller, the frame buffer and the pixel array respectively, and the display controller is used to control the clearing module to clear the data in the first pixel storage area of ​​the frame buffer and the data in the second pixel storage area of ​​the pixel array.

24. A near-eye display device, characterized in that: include: The micro display panel according to any one of claims 20 to 23.

25. A near-eye display device, characterized in that: include: The microdisplay system according to any one of claims 11 to 19.

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