TWI702847B - Automatic resolution adjustment system and method applied to liquid crystal display - Google Patents

Abstract

The present invention is an automatic resolution adjustment system and method applied to a liquid crystal display. An image processor is electrically connected to a connection interface module and an information processing module. The information processing module prestores a set of screen resolution information; Above, the connection interface module connects more than one external electronic device, and transmits more than one received image information to the image processor. When the image processor determines that the received image information is unstable, the image The processor sends a resolution adjustment command to the information processing module, and the information processing module generates a resolution adjustment information based on the set of screen resolution information, and outputs it to the external electronic device for adjustment via the connection interface module. The image processor receives stable image information to improve stability, convenience, and reliability.

Description

Automatic resolution adjustment system and method applied to liquid crystal display

The invention relates to an adjustment system applied to a liquid crystal display, in particular to an automatic resolution adjustment system and method applied to a liquid crystal display.

With the rapid development of information presentation methods, from the presentation of static text or images on paper for the public to obtain information, it has evolved to the presentation of dynamic text or images on liquid crystal displays for the public to obtain more information in an interesting, rich and intense way.

The liquid crystal display in the prior art includes a plurality of connection interface ports, a plurality of rewritable memories, and an image processor. The image processor is electrically connected to the connection interface ports and the rewritable memories. The connection interface ports Including a DVI (Digital Visual Interface, DVI, digital video interface) port, an HDMI (High Definition Multimedia Interface, HDMI, high-definition multimedia interface) port or other image specifications of the port; each of which can be rewritable memory Corresponding to a connection interface port, and each rewritable memory respectively stores a screen resolution information (Extended Display Identification, EDID); when the user connects an external electronic device to the corresponding connection interface port, the image processing The device reads the screen resolution information corresponding to the connected interface port from the rewritable memory corresponding to the connected interface port, and sends it to the external electronic device for reading and setting. The image processor then receives the external electronic device Display after sending a new image information.

However, when the liquid crystal display is in use, if the resolution of the image information received exceeds the screen resolution information in the liquid crystal display, the image information received by the liquid crystal display will be unstable and cannot be displayed normally. The user needs to return the LCD monitor to the original factory Re-adjustment, therefore, the prior art has problems such as unstable image information, inconvenience and trouble in use.

In addition, when the LCD display is produced, it is necessary to burn and store the corresponding screen resolution information for each connection interface port into the corresponding rewritable memory. When the number of connection interface ports of the LCD display increases , It takes a lot of time to burn and store the corresponding screen resolution information for each rewritable memory. Therefore, the prior art also causes problems such as time-consuming production and increased labor costs.

In view of the above-mentioned problems in the prior art, the main purpose of the present invention is to provide a system and method for automatically adjusting the resolution of a liquid crystal display, which can automatically adjust the image adaptively according to the screen resolution that the liquid crystal display can display. The resolution of information improves stability, convenience and reliability.

The main technical means adopted in order to achieve the above purpose is to make the aforementioned automatic resolution adjustment system applied to liquid crystal displays, which includes: a connection interface module for connecting more than one external electronic device, and the connection interface module receives the external More than one image information transmitted by the electronic device; an information processing module electrically connected to the connection interface module, the information processing module prestores a set of screen resolution information; an image processor electrically connected to the connection interface module and In the information processing module, the image processor receives the image information; wherein, when the image processor determines that the image information is unstable, the image processor sends a resolution adjustment command to the information processing module, and the information processing The module generates a resolution adjustment information according to the adjustment resolution command and the set of screen resolution information, and the information processing module passes through the connection interface module The group supplies the resolution adjustment information to the external electronic device for reading and adjustment, and the image processor receives the external electronic device to send new image information.

According to the above system, the image processor determines that the received image information is unstable, that is, when the resolution of the image information transmitted by the external electronic device exceeds the screen resolution of the image information that can be displayed on the liquid crystal display, the image processing The processor sends the adjustment resolution command to the information processing module, and the information processing module generates the resolution adjustment information according to the adjustment resolution command and the set of screen resolution information, and outputs the resolution through the connection interface module The degree of adjustment information is adjusted to the external electronic device, the image processor receives the external electronic device to send new image information, so that the image processor receives the stable image information output by the external electronic device after adjustment, and the Liquid crystal display for display. By automatically adjusting the resolution of the image, the LCD can display the image stably, thereby enhancing the convenience and stability of use.

In addition, by pre-building the set of screen resolution information in the information processing module, the external electronic device can adaptively adjust the image resolution of the corresponding image information according to the screen resolution of the liquid crystal display. In addition to the automatic function, it can also avoid the labor cost of repeatedly programming and storing the resolution.

Furthermore, since the screen resolution information is pre-built in the information processing module, it does not need to be burned and stored during production, which can effectively reduce arbitrary tampering by unscrupulous persons, resulting in unavailability, resulting in reduced product reliability and maintenance rate The problem of rising, to achieve the purpose of improving reliability.

In order to achieve the above-mentioned purpose, another main technical method is to make the aforementioned automatic resolution adjustment method applied to liquid crystal displays. A liquid crystal display is used to connect more than one external electronic devices. The liquid crystal display is pre-built with a set of screen resolutions. Information, and the liquid crystal display performs the following steps: receiving more than one image information sent by the external electronic device; determining whether the image information is stable; If not, generate a resolution adjustment command, and according to the set of screen resolution information, output a resolution adjustment information to the external electronic device for reading and adjustment, and return to "receive image information sent by the external electronic device "A step of.

Through the above method, it can be known that the liquid crystal display is used to determine whether the image information transmitted by the external electronic device is stable, so as to confirm whether the resolution of the image information exceeds the screen resolution displayed by the liquid crystal display. If the liquid crystal display determines the received image The information is unstable. According to the set of screen resolution information, the resolution adjustment information is sent to the external electronic device for adjustment, and the adjusted image information of the external electronic device is received again for display, and the corresponding image information is automatically adjusted. Resolution, in order to achieve the purpose of improving the convenience and stability of use.

Further, by pre-building the set of screen resolution information in the information processing module, the external electronic device can adapt the resolution of the corresponding image information according to the screen resolution stored in the display, thereby in addition to In addition to the automatic function, it can also avoid the labor cost of re-programming and storing the resolution.

Furthermore, since the screen resolution information is pre-built in the information processing module, it does not need to be burned and stored during production, which can effectively reduce arbitrary tampering by unscrupulous people, causing the LCD to be unusable and leading to product reliability. Reduce and increase the maintenance rate to achieve the purpose of improving reliability.

10: LCD display

11: Connect the interface module

111: Port

12: image processor

13: Information Processing Module

131: Processing Unit

132: Resolution Database

20: External electronics

FIG. 1 is a block diagram of the first architecture of the preferred embodiment of the present invention.

Figure 2 is a block diagram of the second architecture of the preferred embodiment of the present invention.

Figure 3 is a flowchart of a preferred embodiment of the present invention.

Regarding the preferred embodiment of the automatic adjustment system for the resolution of the liquid crystal display according to the present invention, please refer to Figs. 1 and 2. It is applied to a liquid crystal display 10 which includes a connection interface module 11 and an image The processor 12 and an information processing module 13. The image processor 12 is electrically connected to the connection interface module 11 and the information processing module 13, and the information processing module 13 is electrically connected to the connection interface module 11.

The connection interface module 11 provides electrical connections to more than one external electronic device 20, so as to receive more than one image information output from the external electronic device 20 through the connection interface module 11. In this embodiment, the connection interface module Group 11 includes multiple ports 111 with different video specifications. The ports 111 include more than one DVI (Digital Visual Interface, DVI, digital video interface) port, and more than one HDMI (High Definition Multimedia Interface, HDMI, high-quality Multimedia interface) ports, one or more VGA (Video Graphics Array connector, VGA connector, video graphics array) ports, one or more AV (Composite video connector) terminal ports or ports of other video specifications, here only It is an example and not a limitation.

The image processor 12 is used to process the image information received by the connection interface module 11 and is displayed by the liquid crystal display 10 for the user's reference.

In this embodiment, the information processing module 13 includes a processing unit 131 and a resolution database 132, the processing unit 131 is electrically connected to the resolution database 132, and the processing unit 131 is further electrically connected to the image processing A set of screen resolution information is pre-built in the resolution database 132, and the set of screen resolution information includes multiple screen resolutions that can be displayed on the liquid crystal display 10, and each Port 111 corresponds to multiple screen resolutions.

When the user connects the external electronic device 20 to the corresponding connection port 111 on the connection interface module 11, the image processor 12 sends a resolution setting command to the processing unit 131, and the processing unit 131 according to the analysis Setting command and the set of screen resolution information to generate an initial screen Screen resolution setting information, the processing unit 131 first sends a hot plug enable command to the connection interface module 11 to enable the external electronic device 20 and the corresponding connection port 111. ) And establish an electrical connection relationship. The processing unit 131 sends the initial screen resolution setting information to the connection interface module 11 for the external electronic device 20 to read, adjust, and set to complete the initial screen resolution setting.

After the external electronic device 20 completes the initial screen resolution setting, the external electronic device 20 outputs an image information to the connection interface module 11, and the image processor 12 processes the image information according to the image information, and the LCD monitor 10 for displaying. In the process of processing the image information, the image processor 12 will determine whether the received image information is unstable. If the image processor 12 determines that an image resolution of the image information exceeds the liquid crystal display 10 Multiple screen resolutions that can be displayed, or when a signal frequency of the image information is unstable, will cause the liquid crystal display 10 to produce a delay (Lag), intermittent images, blurred images, or black screens in the images displayed by the image information. Etc., the image processor 12 will generate a resolution adjustment command and send it to the processing unit 131 of the information processing module 13. The processing unit 131 generates a resolution based on the resolution adjustment command and the set of screen resolution information The processing unit 131 transmits the resolution adjustment information to the connection interface module 11, and the connection interface module 11 provides the resolution adjustment information to the external electronic device 20 for reading and adjustment and setting. The external electronic device 20 transmits new image information to the image processor 12 through the connection interface module 11 for processing, so that the liquid crystal display 10 displays the image information after adjusting the image resolution.

Specifically, when the image processor 12 determines that the image information is unstable, the adjustment resolution command generated by the image processor 12 includes down-resolution information, and the processing unit 131 of the information processing module 13 adjusts The down-resolution information of the resolution command is selected from the set of screen resolution information to select a screen resolution one level lower than the screen resolution of the initial screen resolution setting information, and the resolution adjustment information is generated for the external electronics The device 20 reads and adjusts and sets; In general, for example, the initial screen resolution setting information is 1920*1080, then the lower screen resolution information can be 1680*1050. The foregoing is only an example and not a limitation, but the lower screen resolution The information is smaller than the initial screen resolution setting information.

Further, after the processing unit 131 receives the adjustment resolution command, in order to prevent the liquid crystal display 10 from malfunctioning when the external electronic device 20 readjusts and sets the image resolution of the output image information, the processing unit 131 A hot plug disable command will be generated first and sent to the connection interface module 11 to temporarily disable the connection between the connection interface module 11 and the external electronic device 20, Until the processing unit 131 generates the resolution adjustment information, the processing unit 131 regenerates the hot plug enable command to the connection interface module 11, so that the external electronic device 20 is connected to the corresponding connection port 111 enable (enable) and re-establish the electrical connection relationship.

When the image processor 12 determines that the received image information is unstable, that is, the resolution of the received image information is greater than the screen resolution that can be displayed on the liquid crystal display 10, and the signal frequency of the image information is unstable , The image processor 12 generates the adjustment resolution command to the information processing module 13, so that the information processing module 13 generates the resolution adjustment information for reducing the screen resolution, and passes the connection interface module The group 11 is for the external electronic device 20 to read, adjust and set, so as to automatically adjust the image resolution of the image information and the screen resolution of the liquid crystal display 10 to improve the convenience and stability of use.

In addition, by pre-building the set of screen resolution information in the information processing module 13, the external electronic device 20 can adaptively adjust the image resolution of the corresponding image information according to the screen resolution of the liquid crystal display 10. In addition to the automatic function, it can also avoid the labor cost of re-programming and storing the screen resolution.

Furthermore, since the screen resolution information is pre-built in the information processing module 13, it does not need to be burned and stored during production, which can effectively reduce arbitrary tampering by unscrupulous persons, resulting in unavailability, resulting in reduced product reliability and maintenance. The problem of rising rate, to achieve the purpose of improving reliability.

In addition, by automatically adjusting the image resolution of the image information, the liquid crystal display 10 can be prevented from being interrupted due to the inability to display the image information, resulting in the risk of being unable to operate the liquid crystal display 10, which can effectively improve the stability of operation; By automatically adjusting the resolution, the bandwidth of many signal circuits in the liquid crystal display 10 can also be effectively adjusted, which improves the use efficiency of the liquid crystal display 10 in the industrial control field and reduces the cost of setting many signal circuits.

Based on the above content, a method for automatically adjusting the resolution of a liquid crystal display is further summarized. Please refer to FIG. 3. As shown in FIG. 3, the liquid crystal display 10 is electrically connected to the external electronic device 20, and the set of screens is pre-built in the liquid crystal display 10. Resolution information, and the liquid crystal display 10 executes the following steps: receiving image information sent by the external electronic device 20 (S30); determining whether the image information is stable (S40); if not, generating a resolution adjustment command, and according to The set of screen resolution information outputs a resolution adjustment information to the external electronic device 20 for reading and adjustment (S50), and returns to the step of "receiving image information sent by the external electronic device 20 (S30)".

In this embodiment, when the step of "determining whether the image information is stable (S40)" is executed as described above, if so, the liquid crystal display 10 displays the image information (S60).

In this embodiment, before the liquid crystal display 10 receives the image information, the liquid crystal display 10 first generates the resolution setting command, and generates the initial screen resolution setting information based on the set of screen resolution information for the external electronic device 20 Read and receive the image information.

Wherein, after the liquid crystal display 10 generates the initial screen resolution setting information, the liquid crystal display 10 generates and transmits the hot plug enable command to the connection interface module Group 11 enables the external electronic device 20 and the corresponding connection port 111 to establish an electrical connection relationship, so that the external electronic device 20 can read the initial screen resolution setting information.

In this embodiment, when the step of "determining whether the image information is stable (S40)" is executed, the liquid crystal display 10 will determine that an image resolution of the image information exceeds the multiple screens that the liquid crystal display 10 can display At the resolution, or a signal frequency of the image information is unstable.

Wherein, the adjustment resolution command includes a resolution reduction information, and the resolution adjustment information includes a screen resolution one level lower than the screen resolution of the initial screen resolution setting information.

Wherein, after the liquid crystal display 10 generates the resolution adjustment command, the liquid crystal display 10 generates the hot plug disable command to temporarily disable disabling with the external electronic device 20 Until the liquid crystal display 10 generates the resolution adjustment information, the liquid crystal display 10 regenerates the hot plug enable command to enable the connection between the liquid crystal display 10 and the external electronic device 20. ) And re-establish the electrical connection.

10: LCD display

11: Connect the interface module

12: image processor

13: Information Processing Module

20: External electronics

Claims (9)

An automatic resolution adjustment system applied to a liquid crystal display, comprising: a connection interface module for connecting more than one external electronic device, the connection interface module receiving more than one image information transmitted by the external electronic device; an information processing The module includes a processing unit and a resolution database. The processing unit is electrically connected to the connection interface module and the resolution database. The resolution database of the information processing module prestores a set of screen resolution information; The image processor is electrically connected to the connection interface module and the processing unit of the information processing module. The image processor receives the image information; wherein, when the image processor determines that the image information is unstable, the image processor transmits A resolution adjustment command is sent to the information processing module. When the processing unit of the information processing module receives the resolution adjustment command, the processing unit generates and sends a hot plug prohibition enable command to the connection interface module, The connection interface module and the external electronic device are temporarily disabled. The processing unit of the information processing module generates a resolution adjustment information according to the adjustment resolution command and the set of screen resolution information. When the processing unit After generating the resolution adjustment information, the processing unit generates and sends the hot-plug enable command to the connection interface module to enable the external electronic device and the connection interface module and establish an electrical connection relationship. The processing unit of the information processing module supplies the resolution adjustment information to the external electronic device through the connection interface module for reading and adjustment, and the image processor receives the external electronic device to transmit new image information. The automatic resolution adjustment system applied to the liquid crystal display as described in claim 1, wherein when the external electronic device is connected to the connection interface module, the image processor sends a resolution setting command to the processing unit, the The processing unit generates the initial screen resolution setting information according to the resolution setting command and the set of screen resolution information, and outputs it to the external electronic device for reading through the connection interface module. The automatic resolution adjustment system applied to liquid crystal displays as described in claim 2, wherein, after the processing unit generates the initial screen resolution setting information, the processing unit first generates and sends the hot-plug enable command to the The connection interface module enables the external electronic device and the connection interface module to enable and establish an electrical connection relationship. The automatic resolution adjustment system applied to liquid crystal displays according to claim 2 or 3, wherein the adjustment resolution command includes a resolution reduction information, and the processing unit obtains the resolution from the set of screen resolutions according to the resolution reduction information. The information selects a screen resolution one level lower than a screen resolution of the initial screen resolution setting information, and generates the resolution adjustment information. A method for automatically adjusting the resolution of a liquid crystal display. A liquid crystal display is used to connect more than one external electronic device. The liquid crystal display is pre-built with a set of screen resolution information, and the liquid crystal display performs the following steps: receiving the external electronic device More than one image information sent by the device; determine whether the image information is stable; if not, generate a resolution adjustment command, when the LCD display generates the resolution adjustment command, the LCD generates a hot plug disable enable command To temporarily disable enabling between the liquid crystal display and the external electronic device, and generate a resolution adjustment information based on the set of screen resolution information, and the liquid crystal display generates a hot plug enable command based on the resolution adjustment information, To enable and establish an electrical connection with the external electronic device, and output the resolution adjustment information to the external electronic device for reading and adjustment, and return to the "receive image information sent by the external electronic device" step. The method for automatically adjusting the resolution of a liquid crystal display as described in claim 5, wherein, when the step of "determining whether the image information is stable" is executed, if yes, the liquid crystal display displays the image information. The method for automatically adjusting the resolution of a liquid crystal display as described in claim 6, wherein, before the liquid crystal display receives the image information, the liquid crystal display generates a resolution setting command, and generates a resolution setting command based on the set of screen resolution information Initial screen resolution setting information for the external electronic device to read. The method for automatically adjusting the resolution of a liquid crystal display as described in claim 7, wherein after the liquid crystal display generates the initial screen resolution setting information, the liquid crystal display generates the hot-plug enable command to make the liquid crystal display Enable and establish an electrical connection with the external electronic device. The method for automatically adjusting the resolution of a liquid crystal display according to claim 7 or 8, wherein the adjusting resolution command includes a resolution reduction information, and the liquid crystal display obtains the resolution from the set of screen resolutions according to the resolution reduction information. The information selects a screen resolution one level lower than a screen resolution of the initial screen resolution setting information, and generates the resolution adjustment information.

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