A dynamic switching refresh frequency structure to prevent display module tearing

Abstract

A dynamic switching refresh frequency structure for preventing display module tearing includes: a mainboard, a display IC and a display screen; a mainboard, wherein the mainboard is provided with a flash module, a TCON module, a mainboard RAM module and a QSPI module 4; a display IC, wherein the display IC is provided with a display RAM module, a frequency gear module and a data transmission module; a frequency gear module, wherein the frequency gear module is provided with four frequency gears, namely, 60 Hz, 50 Hz, 40 Hz and 30 Hz. The dynamic switching refresh frequency structure for preventing display module tearing of the utility model, by setting a frequency gear module in the display IC and editing the 4 gear frequencies, can automatically switch the refresh frequency according to the data requirements of the UI picture during display, thereby making the screen display application more convenient, and no tearing stripes will appear, improving the customer product experience effect, and greatly reducing the difficulty and time of product development.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a dynamic switching refresh frequency structure for preventing display modules from being torn. Background Art

[0002] AMOLED displays are widely used in smart watches and smart bracelets in the current market. Smart watches are consumer products with great cost pressure. Therefore, during the use of the platform, MIPI solutions and high-speed platform solutions will not be used. Instead, low-cost QSPI solutions will be used. Due to the slow data transmission speed of the QSPI solution and the relationship between the picture UI, the screen self-refresh frequency may not reach 60HZ, and may be 50HZ, 40HZ or 30HZ, etc. In addition, the QSPI data transmission speed is slow and the amount of UI picture data varies, resulting in a lot of time required to transmit the entire UI picture. In this way, the mismatch between a frame of data transmission and the screen self-refresh frequency will cause tearing stripes on the screen when it is displayed. This often leads to poor display effects, affecting customer experience and increasing the difficulty of product development. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a dynamic switching refresh frequency structure for preventing display module tearing.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A dynamic switching refresh frequency structure for preventing display module tearing includes: a mainboard, a display IC and a display screen; a mainboard, wherein the mainboard is provided with a flash module, a TCON module, a mainboard RAM module and a QSPI module 4; a display IC, wherein the display IC is provided with a display RAM module, a frequency gear module and a data transmission module; a frequency gear module, wherein the frequency gear module is provided with four frequency gears, namely, 60 Hz, 50 Hz, 40 Hz and 30 Hz.

[0006] In one embodiment, the mainboard and the display IC are connected to each other via a metal PIN, and the display IC and the display screen are connected to each other via a metal PIN.

[0007] In one of the embodiments, the flash module is communicatively connected to the mainboard RAM module, and the mainboard RAM module is communicatively connected to the TCON module.

[0008] In one embodiment, the QSPI module 4 is communicatively connected with the TCON module and the mainboard RAM module respectively.

[0009] In one embodiment, the display RAM module is data-connected to the frequency gear module and the data transmission module respectively.

[0010] In one embodiment, the QSPI module 4 is unidirectionally data-connected to the frequency gear module and the data transmission module respectively.

[0011] In one embodiment, the data transmission module is connected to the display screen in a unidirectional data manner.

[0012] In one of the embodiments, the flash module, TCON module, mainboard RAM module and QSPI module 4 are all arranged in the IC chip of the mainboard.

[0013] In one embodiment, the shape and size of the display screen are designed according to market requirements.

[0014] In one embodiment, the mainboard is electrically connected to a power supply.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The dynamic switching refresh frequency structure for preventing display module tearing of the utility model sets a frequency gear module in the display IC, and edits the 4 gear frequencies, namely 60HZ, 50HZ, 40HZ and 30HZ, so that it can issue a gear setting request before the platform sends the UI image data to be displayed, indicating what frequency the next UI image needs to be refreshed, for example, UI1 needs to be refreshed with 60HZ, and UI3 needs to be switched to 30HZ to refresh, so that the refresh frequency can be automatically switched according to the data requirements of the UI image during display, thereby making the screen display application more convenient, and no tearing stripes will appear, thereby improving the customer product experience effect and greatly reducing the difficulty and time of product development. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The present invention is a schematic diagram of a module of a dynamic refresh frequency switching structure for preventing display module tearing.

[0019] In the figure: 1. Mainboard; 11. Flash module; 12. TCON module; 13. Mainboard RAM module; 14. QSPI module; 2. Display IC; 21. Display RAM module; 22. Frequency gear module; 23. Data transmission module; 3. Display screen. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0021] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] Unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] like Figure 1As shown, a dynamic switching refresh frequency structure for preventing display module tearing includes: a mainboard 1, a display IC2 and a display screen 3; the mainboard 1 is provided with a flash module 11, a TCON module 12, a mainboard RAM module 13 and a QSPI module 14; the display IC2 is provided with a display RAM module 21, a frequency gear module 22 and a data transmission module 23; the frequency gear module 22 is provided with four frequency gears: 60 Hz, 50 Hz, 40 Hz and 30 Hz. It should be noted that after the pictures are synthesized into a complete UI display, they will be placed in the flash module 11 first. What kind of pictures need to be displayed on the display screen 3 will be stored in the flash module 11 first and extracted when needed. For example, if a single UI1 picture a is displayed on the display screen 3, or if a, b and c are synthesized to display UI2, and a, b, c, d and e are synthesized to display UI3, the data volume of UI1, UI2 and UI3 will be different. After UI1, UI2 and UI3 are respectively placed in the mainboard RAM module 13 on the platform IC and synthesized, they are placed in the QSPI module 14 for transmission. Because the number of UI1, UI2 and UI3 is different, and the transmission speed of the QSPI module 14 is constant, the data volume of UI1, UI2 and UI3 is different. CON module 12 is used to calculate the total time required to send UI1, UI2 and UI3, so as to know the time required for one frame of picture. For example, if the transmission speed data is 320*360*24=2764800, and the time required is 16.7ms, then the frequency gear module 22 requires the display IC2 frequency to be 60HZ. If the UI3 data is 5529600, then the time required is 33.4ms, so the gear requires the display IC2 frequency to be 30HZ, so that the time required for UI to be sent can be obtained on TCON module 12. In this way, our display screen 3 can automatically switch the refresh frequency according to the data requirements of the UI picture when displaying, so that the display screen 3 will not have tearing stripes.

[0025] like Figure 1 As shown, in one embodiment, the mainboard 1 and the display IC 2 are connected to each other through a metal PIN, and the display IC 2 and the display screen 3 are connected to each other through a metal PIN. It should be noted that this design allows the mainboard 1 to control and transmit information to the display IC 2, and the display IC 2 can transmit data to the display screen 3 for display.

[0026] like Figure 1As shown, in one embodiment, the flash module 11 is connected to the mainboard RAM module 13 for communication, and the mainboard RAM module 13 is connected to the TCON module 12 for communication. The QSPI module 14 is connected to the TCON module 12 and the mainboard RAM module 13 for communication. The display RAM module 21 is connected to the frequency gear module 22 and the data transmission module 23 for data. The QSPI module 14 is connected to the frequency gear module 22 and the data transmission module 23 for unidirectional data. The data transmission module 23 is connected to the display screen 3 for unidirectional data. It should be noted that before the platform sends the UI picture data to be displayed, a gear setting requirement is issued first to explain why the next UI picture needs to be refreshed. For example, UI1 needs to be refreshed at 60HZ, and UI3 needs to be switched to 30HZ for refresh. In this way, the display screen 3 can automatically switch the refresh frequency according to the data requirements of the UI picture when displaying, making the application more convenient, and no tearing stripes will appear, thereby improving the customer product experience effect.

[0027] like Figure 1 As shown, in one embodiment, the flash module 11, the TCON module 12, the mainboard RAM module 13 and the QSPI module 14 are all arranged in the IC chip of the mainboard 1. It should be noted that this design can minimize the space used for the mainboard 1.

[0028] like Figure 1 As shown, in one embodiment, the shape and size of the display screen 3 are designed according to market requirements, and its conventional design scheme is circular and rectangular. It should be noted that the conventional design of the display screen 3 is circular and rectangular.

[0029] like Figure 1 As shown in an embodiment, the mainboard 1 is electrically connected to the power supply. It should be noted that this design allows the mainboard 1 to provide power to the display IC 2 and the display screen 3.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dynamic switching refresh rate structure for preventing display module tearing, characterized in that: include: Main board (1), display IC (2) and display screen (3); A main board (1), wherein the main board (1) is provided with a flash module (11), a TCON module (12), a main board RAM module (13) and a QSPI module (14); A display IC (2), wherein the display IC (2) is provided with a display RAM module (21), a frequency gear module (22) and a data transmission module (23); A frequency gear module (22), wherein the frequency gear module (22) is provided with four frequency gears, namely: 60 Hz, 50 Hz, 40 Hz and 30 Hz.

2. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The mainboard (1) and the display IC (2) are connected to each other via a metal PIN, and the display IC (2) and the display screen (3) are connected to each other via a metal PIN.

3. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The flash module (11) and the mainboard RAM module (13) are connected to each other in communication, and the mainboard RAM module (13) and the TCON module (12) are connected to each other in communication.

4. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The QSPI module (14) is respectively communicatively connected with the TCON module (12) and the mainboard RAM module (13).

5. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The display RAM module (21) is data-connected to the frequency gear module (22) and the data transmission module (23) respectively.

6. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The QSPI module (14) is unidirectionally data-connected to the frequency gear module (22) and the data transmission module (23).

7. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The data transmission module (23) is connected to the display screen (3) in a unidirectional data manner.

8. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The flash module (11), the TCON module (12), the mainboard RAM module (13) and the QSPI module (14) are all arranged in the IC chip of the mainboard (1).

9. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The shape and size of the display screen (3) are designed according to market requirements.

10. The structure for dynamically switching refresh rates to prevent display module tearing according to claim 1, characterized in that: The mainboard (1) is electrically connected to a power source.

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