Display screen driving method and display screen driving system

Abstract

The display screen driving method is suitable for a spliced display comprising a plurality of panel modules, and comprises the following steps of: receiving image data by an image generating circuit and generating a first-order picture with a first-order resolution according to the image data; generating an advanced picture with terminal resolution based on the first-order picture and an application set value by a picture assignment circuit, and dividing the advanced picture into a plurality of terminal pictures; and respectively receiving the plurality of terminal pictures by a plurality of time schedule controllers and generating a plurality of panel driving signals corresponding to the plurality of terminal pictures so as to respectively output the plurality of panel driving signals to the plurality of panel modules. The picture assignment circuit determines whether to scale the first-order picture as the advanced picture according to whether the numerical value of the first-order resolution is equal to the application set value.

Description

Technical Field

[0001] The present invention relates to a display screen driving method and a display screen driving system. Background Art

[0002] Traditionally, after receiving image data, a general tiled display only performs one-time image scaling by a scaler integrated circuit (Scaler IC), and then performs image segmentation by a field programmable gate array (FPGA), and then outputs the result to a timing controller (Timing Controller). However, in practice, for the tiled display market with frequent customization requirements, when this implementation method is applied to the panel module connected to the backend of the above architecture, the situation where the resolution of the backend panel module cannot be fully met often occurs, affecting the image display effect of the tiled display. Summary of the Invention

[0003] In view of the above, the present invention provides a display screen driving method and a display screen driving system.

[0004] A display screen driving method according to an embodiment of the present invention is applicable to a tiled display including a plurality of panel modules, and includes: receiving an original image by an image generation circuit and scaling it to generate a primary image with a primary resolution; receiving the primary image and an application setting value by a screen distribution circuit, and generating an advanced image with a terminal resolution; dividing the advanced image into a plurality of terminal images by the screen distribution circuit; receiving the plurality of terminal images by a plurality of timing controllers respectively, and generating a plurality of panel driving signals corresponding to the plurality of terminal images; and outputting the plurality of panel driving signals to the plurality of panel modules by the plurality of timing controllers respectively. Wherein generating the advanced image with the terminal resolution includes: determining whether the value of the primary resolution is equal to the application setting value, if the determination result is yes, setting the primary image as the advanced image, if the determination result is no, scaling the primary image to generate the advanced image, and the value of the terminal resolution of the advanced image is equal to the application setting value.

[0005] A display screen driving system according to an embodiment of the present invention is applicable to a tiled display including a plurality of panel modules, and includes an image generation circuit, a screen distribution circuit, and a plurality of timing controllers. The image generation circuit receives an original image and scales the original image to generate a primary image with a primary resolution. The screen distribution circuit is electrically connected to the image generation circuit. The screen distribution circuit receives the primary image and an application setting value, generates an advanced image with a terminal resolution, and divides the advanced image into a plurality of terminal images. The plurality of timing controllers are electrically connected to the screen distribution circuit, respectively receive the plurality of terminal images, generate a plurality of panel driving signals corresponding to the plurality of terminal images, and respectively output the plurality of panel driving signals to the plurality of panel modules. The screen distribution circuit determines whether the value of the primary resolution is equal to the application setting value. If the determination result is yes, the primary image is set as the advanced image. If the determination result is no, the primary image is scaled to generate the advanced image, and the value of the terminal resolution of the advanced image is equal to the application setting value.

[0006] Through the above structure and operation method, the display screen driving method and the display screen driving system disclosed in this case can more suitably apply to a customized tiled display and achieve a better display effect by selectively performing a second resolution adjustment on the primary image when performing screen distribution.

[0007] The above description of the disclosure content and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the claims of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a block diagram of a display screen driving system shown according to an embodiment of the present invention.

[0009] Figure 2 It is a flowchart of a display screen driving method shown according to an embodiment of the present invention.

[0010] Figure 3 It is a determination flowchart of step S2 of the display screen driving method shown according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The following details the features and advantages of the present invention in the embodiments. The content is sufficient for any person skilled in the art to understand the technical content of the present invention and implement it accordingly. And according to the content disclosed in this specification, the claims, and the drawings, any person skilled in the art can easily understand the related purposes and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention, but do not limit the scope of the present invention in any way.

[0012] Please refer to Figure 1 , Figure 1 which is a block diagram of a tiled display drawn for a display driving system according to an embodiment of the present invention. As Figure 1 shown, the tiled display includes a display driving system 1 and a plurality of panel modules 2a to 2d controlled by this display driving system 1. The number of panel modules 2a to 2d is not limited to four, and the tiled display using the display driving system of the present invention is not limited by the number of panel modules.

[0013] Continuing from the above, as Figure 1 shown, the display driving system 1 of this embodiment includes an image generation circuit 11, a frame distribution circuit 12, and a plurality of timing controllers 13a to 13d. The image generation circuit 11 is used to receive an original image and perform reduction or enlargement (hereinafter simply referred to as scaling) to generate a preliminary image based on this original image, and this preliminary image has a preliminary resolution. The frame distribution circuit 12 is electrically connected to the image generation circuit 11 to receive the preliminary image from the image generation circuit 11. The frame distribution circuit 12 also receives an application setting value, and then generates an advanced image with a terminal resolution, and divides this advanced image into a plurality of terminal images. The plurality of timing controllers 13a to 13d respectively receive the aforementioned plurality of terminal images, and after generating a plurality of panel driving signals corresponding to the terminal images, output the plurality of panel driving signals to the panel modules 2a to 2d respectively. Similarly, the number of timing controllers 13a to 13d is not limited to four, and the number of timing controllers 13a to 13d corresponds to the number of panel modules 2a to 2d. In particular, when the frame distribution circuit 12 generates an advanced image, the frame distribution circuit 12 first compares whether the value of the preliminary resolution of the preliminary image is equal to the application setting value, and then decides how to generate the advanced image according to the comparison result. Specifically, if the value of the preliminary resolution is equal to the application setting value, the preliminary image is used as the advanced image for division; if the value of the preliminary resolution is not equal to the application setting value, the preliminary image is scaled to generate an advanced image so that the value of the terminal resolution of the advanced image is equal to the application setting value.

[0014] In the above embodiment, the original image has an original resolution, and the original resolution is different from the preliminary resolution. In addition, each of the timing controllers 13 has an address so that the frame distribution circuit 12 can correctly transmit each terminal image to the corresponding timing controller 13 in an addressing manner. Furthermore, the timing controller 13 preferably has a buffer memory to store the terminal image received from the frame distribution circuit 12. When the timing controller 13 generates a panel driving signal corresponding to the terminal image, it can further correct the terminal image, such as performing color and brightness calibration optimization, or adding additional image special effects.

[0015] In one embodiment, the image generation circuit 11 can be implemented by a scaler integrated circuit (Scaler IC), the screen distribution circuit 12 can be implemented by a field programmable gate array (FPGA), the timing controllers 13a to 13d can be implemented by timing control integrated circuits (TCON ICs), and the panel modules 2a to 2d for receiving the panel driving signals can be, for example, liquid crystal display modules, organic light emitting diode display modules, plasma display modules, etc., but are not limited to the above types of display modules.

[0016] Please also refer to Figure 1 and Figure 2 , Figure 2 which is a flowchart of a display screen driving method according to an embodiment of the present invention, including steps S1 to S5. Step S1 is "receiving an original image by the image generation circuit 11 and scaling it to generate a primary image with a primary resolution", where the primary resolution can be the resolution applicable to a tiled display of a reference specification, and the image generation circuit 11 is used to scale the original image to generate a primary image with a primary resolution. Step S2 is "receiving the primary image and an application setting value by the screen distribution circuit 12 and generating an advanced image with a terminal resolution", where the application setting value is the resolution value set for the tiled display implementing this display screen driving method at present, whereby the screen distribution circuit 12 can generate an advanced image that is most suitable for the specification of this tiled display (such as a specially customized specification) in terms of resolution. Step S3 is "dividing the advanced image into a plurality of terminal images by the screen distribution circuit 12", where the plurality of terminal images can directly or indirectly jointly form the complete image of the tiled display. Step S4 is "receiving the plurality of terminal images by the plurality of timing controllers 13a to 13d respectively and generating a plurality of panel driving signals corresponding to the plurality of terminal images", where the plurality of timing controllers 13a to 13d are used to generate signals for driving the respective panel modules of the tiled display according to the plurality of terminal images, and image correction or special effects can be performed together during the generation process. Step S5 is "outputting the plurality of panel driving signals to the panel modules 2a to 2d by the timing controllers 13a to 13d respectively", thereby completing the driving of this tiled display.

[0017] Please further refer to Figure 3 , Figure 3In the display screen driving method illustrated according to an embodiment of the present invention, the flowchart of the determination in step S2 is shown. Specifically, step S2 may include sub-steps S21, S22, and S23. Sub-step S21 is "determine whether the value of the initial resolution is equal to the application setting value", and based on the determination result, it is decided how to continue generating the advanced screen. When the determination result is yes, sub-step S22 is executed, and when the determination result is no, sub-step S23 is executed. Sub-step S22 is "set the initial screen as the advanced screen", that is, the initial screen already meets the specifications of this tiled display in terms of resolution without adjustment. Sub-step S23 is "scale the initial screen to generate the advanced screen", that is, the current tiled display is not a reference design specification, so the initial screen needs to be further scaled to obtain the most suitable advanced screen. The present invention does not limit how to obtain the application setting value described here. This application setting value can be directly set by the user according to the actual specifications of the tiled display to the screen distribution circuit 12, or it can be information returned by the timing controllers 13a to 13d or the panel modules 2a to 2d to the screen distribution circuit 12 based on the actual specifications of the panel.

[0018] Through the above structure and operation method, the display screen driving method and the display screen driving system disclosed in this case can be more suitable for customized tiled displays by selectively performing a second resolution adjustment on the initial screen during screen distribution, thereby achieving a better display effect.

[0019]

Symbol Description

[0020] 1: Display screen driving system

[0021] 11: Image generation circuit

[0022] 12: Screen distribution circuit

[0023] 13a: Timing controller

[0024] 13b: Timing controller

[0025] 13c: Timing controller

[0026] 13d: Timing controller

[0027] 2a: Panel module

[0028] 2b: Panel module

[0029] 2c: Panel module

[0030] 2d: Panel module.

Claims

1. A display screen driving method, applicable to a spliced ​​display including a plurality of panel modules, comprising: An image generating circuit receives the original image and scales it to generate a primary image with a primary resolution; The screen allocation circuit receives the primary screen and the application setting value and generates an advanced screen with terminal resolution; Using the screen allocation circuit to divide the advanced screen into a plurality of terminal screens; Using a plurality of timing controllers to receive the plurality of terminal images respectively and generate a plurality of panel driving signals corresponding to the plurality of terminal images; and Outputting the plurality of panel driving signals to the plurality of panel modules respectively by the plurality of timing controllers; Generating the advanced screen with the terminal resolution includes: determining whether the value of the primary resolution is equal to the application setting value; if the determination result is yes, setting the primary screen as the advanced screen; if the determination result is no, scaling the primary screen to generate the advanced screen, and the value of the terminal resolution of the advanced screen is equal to the application setting value.

2. The display screen driving method according to claim 1, wherein receiving the plurality of terminal screens respectively with the plurality of timing controllers comprises: outputting the plurality of terminal screens respectively with the screen allocation circuit based on the plurality of timing controllers respectively corresponding to a plurality of addresses.

3. The display screen driving method according to claim 1, wherein before generating the plurality of panel driving signals corresponding to the plurality of terminal screens, it comprises: using the plurality of timing controllers to respectively store the plurality of terminal screens received by the screen allocation circuit.

4. A display screen driving system, applicable to a spliced ​​display comprising a plurality of panel modules, comprising: An image generating circuit receives an original image and scales the original image to generate a primary image with a primary resolution; A screen allocation circuit electrically connected to the image generation circuit, the screen allocation circuit receives the primary screen and application setting values, generates an advanced screen with terminal resolution, and divides the advanced screen into a plurality of terminal screens; and A plurality of timing controllers, electrically connected to the screen allocation circuit, respectively receiving the plurality of terminal screens, generating a plurality of panel driving signals corresponding to the plurality of terminal screens, and respectively outputting the plurality of panel driving signals to the plurality of panel modules; in, The screen allocation circuit determines whether the value of the primary resolution is equal to the application setting value. If the judgment result is yes, the primary screen is set as the advanced screen. If the judgment result is no, the primary screen is scaled to generate the advanced screen, and the value of the terminal resolution of the advanced screen is equal to the application setting value. 5 . The display screen driving system according to claim 4 , wherein the frame allocation circuit is a field programmable logic gate array. 6 . The display screen driving system according to claim 4 , wherein the screen allocation circuit outputs the plurality of terminal screens respectively based on a plurality of addresses, and the plurality of timing controllers correspond to the plurality of addresses respectively. 7 . The display screen driving system according to claim 4 , wherein the plurality of timing controllers respectively store the plurality of terminal screens received by the screen allocation circuit.

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