TWI709899B - Parameter configuration method and display unit cascade equipment and display device adopting the method - Google Patents

Abstract

A display unit cascade device includes a slave transmission interface, a master transmission interface, a storage and a processor. The processor is electrically connected to the slave transmission interface, the master transmission interface, and the storage, and receives an image from a host device or a previous-level display unit cascade device through the slave transmission interface; decrypts the image to Obtain a configuration information and store the configuration information in the storage; and plan the display unit cascading equipment of this level according to the configuration information, for example, store a device number representing the display unit cascade equipment in the display of this level The working mode of the display unit cascade equipment at this level is planned in the unit cascade equipment or according to a configuration information.

Description

Parameter configuration method and display unit cascade equipment and display device adopting the method

The present invention relates to a parameter configuration method and a display unit cascade device using the method, in particular to a display unit cascade device for parameter configuration through encrypted images.

In people's daily life, there are many application products of various display units (for example, display units composed of light-emitting diodes (LED)), such as lighting equipment, display screens, key backlights, electronic billboards, etc. For the type of electronic signage, it may require a display unit cascading device formed by multiple display units connected in series. When displaying text or images, the host device that sends text or images, and the display unit cascading equipment It is necessary to identify the sequence of each display unit and the content that each display unit needs to display, so that no errors will occur.

Existing sequence identification or configuration of each display unit in a display unit cascade device usually requires additional control circuits or memory, which increases manufacturing costs, and the display sequence relationship of each display unit cascade device cannot be easily changed .

In order to solve the above problems, a novel parameter configuration method is urgently needed in this field.

The purpose of the present invention is to disclose a parameter configuration method for display unit cascade devices, which encrypts configuration information into an image through a host device and then sends it to a series of display unit cascade devices so that each display unit cascade device can The configuration information is obtained according to the image from the previous stage to sequentially determine the device number of each display unit cascade device or sequentially set the device configuration of each display unit cascade device.

To achieve the above objective, the present invention discloses a display unit cascade device. The display unit cascaded device includes a slave transmission interface, a master transmission interface, a storage and a processor. The processor is electrically connected to the slave transmission interface, the master transmission interface, and the storage for performing the following operations: receiving an image from a host device or a previous-level display unit cascade device through the slave transmission interface; The image obtains a configuration information to obtain a configuration information and stores the configuration information in the storage; and the display unit cascade device is planned according to the configuration information.

In one embodiment, the configuration information is number information.

In one embodiment, the configuration information is a display configuration information.

In one embodiment, the processor further generates another image, and transmits the other image to the next-level display unit cascade device through the main transmission interface, and the other image carries another image. One number information.

To achieve the above objective, the present invention further discloses a display device, which has a display screen formed by cascading a plurality of display unit cascade devices as described above.

In possible embodiments, the display device may be a cathode ray tube (CRT) display device, a digital light processing (digital light processing; DLP) display device, a liquid crystal display (LCD), a light emitting diode Body (light emitting diode; LED) display device, organic light emitting diode (organic light emitting diode; OLED) display device, quantum dot light emitting diode (QLED) display device, Mirco-LED display device Or Mini-LED display device.

In addition, the present invention further discloses a parameter configuration method for display unit cascade devices, which is implemented through a host device and multiple display unit cascade devices. The parameter configuration method includes executing the following in each display unit cascade device Steps: receiving an image; decrypting the image to obtain a configuration information; planning the display unit cascade device according to the configuration information; generating another image; and sending the other image to the next level of display unit cascade equipment.

In one embodiment, the configuration information is number information.

In one embodiment, the configuration information is a display configuration information.

In one embodiment, the parameter configuration method further includes: generating another image, and transmitting the other image to the next-level display unit cascade device, wherein the other image carries another number information .

In order to enable your reviewer to further understand the structure, features and purpose of the present invention, drawings and detailed descriptions of preferred specific embodiments are attached as follows.

Please refer to Figures 1 and 2 together, in which Figure 1 shows a block diagram of an embodiment of the display unit cascade device of the present invention; Figure 2 shows the image transmission between the host device and the display unit cascade device of the present invention Schematic.

As shown in FIGS. 1 and 2, a display unit cascade device 100 includes a slave transmission interface 110 a, a master transmission interface 110 b, a storage 120 and a processor 130. The processor 130 is electrically connected to the slave transmission interface 110a, the main transmission interface 110b, and the storage 120 to perform the following operations: receive an image from a host device 200 (or a previous-level display unit cascade device 100) through the slave transmission interface 110a ; Decrypt the image to obtain a configuration information and store the configuration information in the storage 120; and plan the display unit cascade device 100 according to the configuration information.

During operation, the host device 200 will first send a designated non-encrypted image via a channel. At this time, the channel is named a blind channel. The display unit cascade device 100 monitors the blind channel at all times. Once a matching signal is detected in the blind channel, it The matching state will be maintained. If any mismatch occurs later, the display unit cascade device 100 will suspend the matching, and then wait for the next matching signal.

The host device 200 can pack the type parameter into a 512-bit long data packet, and encrypt the data packet according to a secure hash algorithm to generate a hash value, for example: use SHA-256 encryption to generate a 256-bit hash value; The data packet and the hash value are converted into image primitives, and then sent to the display unit cascade device 100 through the film cycle of the high-speed bus.

The display unit cascading device 100 displays the image after receiving the image, and simultaneously monitors and decrypts the image. After the display unit cascading device 100 passes the blind track inspection, it performs SHA-256 decryption on each row of primitives. If the decryption is successful and the configuration type is found to match, the configuration type is analyzed to obtain the parameters in the data packet and the parameters are stored in In the storage 120, the display unit cascade device 100 of the current level is planned based on these parameters. In order to save power consumption, it can be agreed that the first line of the frame is the blind track, and the second line is the configuration type, and any matching error will make the device return to the initial state and wait for the next frame image.

The configuration type is divided into the configuration of the device number or the display configuration of the device. Please refer to FIGS. 3 and 4, which are schematic diagrams of assigning numbers and performing display configuration configuration for each display unit cascade device 100 according to the present invention. As shown in FIG. 3, each display unit cascade device 100 decrypts the image after blind track detection to capture and store a device number, and then generates the corresponding number of the next level and packs the corresponding number of the next level , After being encrypted, it will be added to a frame image sent down. As shown in Figure 4, each display unit cascaded device 100 decrypts the image after blind track detection to capture and store a device configuration and determine whether the device configuration matches this level. Configure and plan this level, and then transfer a frame image down. If it doesn't match, don't plan this level and directly transfer a frame image down.

Specifically, the present invention has two working modes. The first mode is: after the display unit cascade device 100 passes the blind track inspection, it will perform SHA-256 decryption on each row of primitives. If the decryption is successful, it will capture and combine Store a device number, then generate a new number corresponding to the next-level display unit cascade device 100, pack and encrypt the new number, and then add the packed and encrypted new number to a new image and add the new number The image of is transmitted to the next-level display unit cascade device 100 through the main transmission interface 110b; the second mode is: the display unit cascade device 100 performs SHA-256 decryption on each row of primitives after passing the blind track inspection, If the decryption is successful, then capture, store and determine whether a device configuration matches this level. If it matches, plan the display unit cascade device 100 of this level based on the device configuration and then transmit a message down through the main transmission interface 110b If the frame image does not match, the display unit cascade device 100 of this level is not planned according to the device configuration, and a frame image is directly transmitted downward through the main transmission interface 110b.

Based on the above-mentioned principle description, the present invention further provides a display device having a display screen composed of a plurality of display unit cascade devices 100 as described above in series. The display device may be, for example, but not limited to, a cathode ray tube (CRT) display device, a digital light processing (digital light processing; DLP) display device, a liquid crystal display (LCD), a light emitting diode ( light emitting diode (LED) display device, organic light emitting diode (OLED) display device, quantum dot light emitting diode (QLED) display device, Mirco-LED display device or Mini -LED display device.

Based on the above-mentioned principle description, the present invention further proposes a parameter configuration method for display unit cascade devices. Please refer to FIG. 5, which shows a flowchart of an embodiment of the parameter configuration method of the present invention, wherein the parameter configuration method is implemented by a host device and multiple display unit cascade devices. As shown in Figure 5, the parameter configuration method involves performing the following steps in each display unit cascade device:

In step S302, an image is received, and the image may come from the host device or the display unit cascade device of the previous stage.

In step S304, the image is decrypted to obtain configuration information. The configuration information may include number information or display configuration information.

In step S306, the display unit cascade device is planned according to the configuration information, for example, a number information is stored in the display unit cascade device, or the display unit cascade device is planned according to a display configuration information.

In step S308, another image is generated.

In step S310, the other image is transmitted to the display unit cascade device of the next level.

With the design disclosed above, the present invention has the following advantages:

1. It can reduce the manufacturing cost of the display unit cascade device.

2. Improve the correct rate of the sequence setting (number configuration) of the display unit cascade equipment.

3. The number or display configuration of the display unit cascade device can be changed through the host device.

The disclosure in this case is a preferred embodiment, and any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those who are familiar with the art do not deviate from the scope of the patent right of the case.

In summary, regardless of the purpose, means and effects of this case, it is shown that it is very different from the conventional technology, and its first invention is suitable for practicality, and it does meet the patent requirements of the invention. Please check it out and grant the patent as soon as possible. Society is for the best prayer.

100: Display unit cascaded device 110a: Slave transmission interface 110b: Main transmission interface 120: Storage 130: Processor 200: Host device S302: Receive an image S304: Decrypt the image to obtain a configuration information S306: According to The configuration information plans the display unit cascade device S308: Generate another image S310: Send the other image to the next level display unit cascade device

FIG. 1 is a block diagram of an embodiment of the display unit cascade device of the present invention. 2 is a schematic diagram of image transmission between the host device and the display unit cascade device of the present invention. Fig. 3 is a schematic diagram of assigning numbers to each display unit cascade device according to the present invention. Fig. 4 is a schematic diagram of the display configuration configuration for each display unit cascade device according to the present invention. FIG. 5 shows a flowchart of an embodiment of the parameter configuration method of the present invention.

S302: Receive an image S304: Decrypt the image to obtain a configuration information S306: Plan the display unit cascade device according to the configuration information S308: Generate another image S310: Send the other image to the next level Display unit cascade equipment

Claims (8)

A display unit cascading device, comprising: a slave transmission interface and a master transmission interface; a storage; and a processor, electrically connected to the slave transmission interface, the master transmission interface and the storage, for performing the following operations : Receive an image from a host device or a previous-level display unit cascade device through the slave transmission interface; perform a blind track check on the image, so as to decrypt the image after detecting a matching signal to obtain A configuration information and store the configuration information in the memory; and plan the display unit cascade device according to the configuration information; generate a new configuration information corresponding to the next level of the display unit cascade device and the new configuration information Packing and encrypting, and then adding the packed and encrypted new configuration information to a new image; and transmitting the new image to the next-level display unit cascade device through the main transmission interface. The display unit cascading device according to claim 1, wherein the configuration information and the new configuration information are both numbered information. The display unit cascading device according to claim 1, wherein the configuration information and the new configuration information are both display configuration information. A display device has a display screen formed by connecting a plurality of display unit cascade devices according to any one of claims 1 to 3. The display device according to claim 4, which is a cathode ray tube display device, a digital light processing display device, a liquid crystal display, a light emitting diode display device, an organic light emitting diode display device, and a quantum dot light emitting diode display A display device selected by the group consisting of a device, Mirco-LED display device and Mini-LED display device. A parameter configuration method for display unit cascaded equipment is realized through a host device and multiple display unit cascaded equipment, and the parameter configuration method includes the cascade connection of each display unit The following steps are performed in the device: receiving an image from a host device or a cascaded device of the previous-level display unit; performing a blind track inspection on the image, so as to decrypt the image after detecting a matching signal to Obtain a configuration information; plan the display unit cascade device according to the configuration information; generate a new configuration information corresponding to the display unit cascade device of the next level, package and encrypt the new configuration information, and then package and encrypt the new configuration information Adding the new configuration information to a new image; and transmitting the new image to the next-level display unit cascading device through the main transmission interface. According to the parameter configuration method of claim 6, wherein the configuration information and the new configuration information are both numbered information. The parameter configuration method according to claim 6, wherein the configuration information and the new configuration information are both display configuration information.

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