CN110018804B

CN110018804B - Display device, image display method and electronic equipment

Info

Publication number: CN110018804B
Application number: CN201910294849.7A
Authority: CN
Inventors: 王澍; 耿立华; 饶晖; 张治国; 李鑫
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2021-02-02
Anticipated expiration: 2039-04-12
Also published as: CN110018804A; WO2020207144A1

Abstract

The invention provides a display device, an image display method and electronic equipment, and relates to the technical field of display. The display device comprises an image access module, a driving board, a processing module and a plurality of bar-shaped screens; the driving board receives a first image signal of the image access module and then processes the first image signal into a second image signal; the processing module converts the second image signal into a third image signal, processes the third image signal into a fourth image signal according to the screen and the image resolution of the bar screen and outputs the fourth image signal to the corresponding bar screen for display; the first and third image signals each include image signals required for each of the bar screens. The invention combines the image signals required by each bar screen into the first image signals by utilizing the characteristic that the resolution ratio of the screen of the bar screen is smaller than the image resolution ratio, and splits the image signals required by each bar screen from the first image signals by the driving board and the processing module so as to realize the display of the bar screen.

Description

Display device, image display method and electronic equipment

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display device, an image display method, and an electronic apparatus.

Background

Display devices are increasingly used in the business field, for example, businesses can display product advertisements, business notices, etc. using display devices, because they can provide more intuitive visual effects to people. In practical applications, many commercial display devices often have special specification requirements, for example, for a whole row of shelves in a supermarket, a strip-shaped bar screen can be arranged at the top of each shelf and used for displaying the goods attributes, promotion information and the like on the corresponding shelf.

In the existing driving scheme of the strip-shaped screen, each strip-shaped screen needs to be provided with a driving plate for driving, each driving plate needs to be provided with an image access module, and each image access module can input image signals required by the corresponding strip-shaped screen to the corresponding driving plate.

However, often need a plurality of bar screens to show simultaneously in practical application, consequently, to the complete machine equipment including a plurality of bar screens, then need be equipped with a plurality of drive plates and a plurality of image access module, so, the complexity of complete machine structure is higher, and the installation degree of difficulty is great, and the cost is higher.

Disclosure of Invention

The invention provides a display device, an image display method and electronic equipment, and aims to solve the problems that each strip-shaped screen in the conventional whole equipment needs to be provided with a drive board and an image access module for driving, so that the structure complexity of the whole equipment is higher, the installation difficulty is higher, and the manufacturing cost is higher.

In order to solve the problems, the invention discloses a display device which comprises an image access module, a drive board, a processing module and at least two strip-shaped screens, wherein the image access module is used for accessing a display screen; the image access module is connected with the driving board, the driving board is connected with the processing module, and the processing module is respectively connected with each strip-shaped screen;

the image access module is configured to input a first image signal to the driving board; the first image signal comprises an image signal required by each bar screen;

the driving board is configured to adjust the resolution of the first image signal, obtain at least one second image signal, and output the second image signal to the processing module;

the processing module is configured to convert the at least one second image signal into a third image signal with the same image resolution as that of the first image signal, process the third image signal into fourth image signals corresponding to the bar screens one by one according to the screen resolution and the image resolution of the bar screens, and output each fourth image signal to the corresponding bar screen; wherein the third image signal comprises an image signal required by each of the bar screens;

the bar screen is configured to display according to the fourth image signal.

Optionally, the driving board includes a first signal input interface and a first signal output interface, the processing module includes a second signal input interface, the image access module is connected to the first signal input interface of the driving board, and the first signal output interface of the driving board is connected to the second signal input interface of the processing module;

the image resolution corresponding to the first signal output interface is equal to the image resolution corresponding to the second signal input interface and is smaller than the image resolution corresponding to the first signal input interface; alternatively, the first and second electrodes may be,

the image resolutions corresponding to the first signal input interface, the first signal output interface and the second signal input interface are the same.

Optionally, the first signal output interface and the second signal input interface are both single-channel LVDS interfaces, or the first signal output interface and the second signal input interface are both dual-channel LVDS interfaces.

Optionally, the bar screen includes a third signal input interface, and the processing module includes a second signal output interface connected to the third signal input interface of the bar screen in a one-to-one correspondence manner;

the image resolution corresponding to the second signal output interface is equal to the image resolution corresponding to the third signal input interface and is smaller than the image resolution corresponding to the first signal input interface; alternatively, the first and second electrodes may be,

the image resolutions corresponding to the first signal input interface, the second signal output interface and the third signal input interface are the same.

Optionally, the second signal output interface and the third signal input interface are both single-channel LVDS interfaces, or the second signal output interface and the third signal input interface are both dual-channel LVDS interfaces.

Optionally, the bar screen has a display surface and a back surface opposite to the display surface; the driving board and the processing module are respectively arranged on the back sides of the different strip-shaped screens.

Optionally, the driver board further includes a first power output interface, and the processing module further includes a first power input interface, where the first power output interface is connected to the first power input interface; the driving board is also configured to input a power supply voltage required by the processing module into the first power supply input interface through the first power supply output interface so as to supply power to the processing module;

and/or the presence of a gas in the gas,

the driving board further comprises at least two second power output interfaces, the bar screen further comprises second power input interfaces, and the second power input interfaces are connected with the second power output interfaces in a one-to-one correspondence manner; the driving board is further configured to input a power supply voltage required by the corresponding bar screen into the corresponding second power supply input interface through the second power supply output interface so as to supply power to the bar screen.

Optionally, the processing module is a field programmable gate array FPGA.

In order to solve the above problem, the present invention also discloses an image display method applied to the above display device, the method comprising:

the image access module inputs a first image signal to the driving board; the first image signal comprises an image signal required by each bar screen;

the driving board adjusts the resolution of the first image signal to obtain at least one second image signal;

the driving board outputs the second image signal to a processing module;

the processing module converts the at least one second image signal into a third image signal which has the same image resolution as the first image signal; wherein the third image signal comprises an image signal required by each of the bar screens;

the processing module is used for processing the third image signal into fourth image signals which correspond to the bar-shaped screen one by one according to the screen resolution and the image resolution of the bar-shaped screen;

the processing module outputs each fourth image signal to the corresponding bar screen;

and the bar screen displays according to the fourth image signal.

Optionally, the first image signal includes a plurality of pixel signals; the driving board carries out resolution adjustment on the first image signal to obtain at least one second image signal, and the method comprises the following steps:

the driving board extracts a target number of pixel signals in sequence from a plurality of pixel signals of the first image signal to obtain a second image signal;

the target number is equal to the number of pixels contained in the image resolution corresponding to the signal output interface of the driving board.

Optionally, the converting, by the processing module, the at least one second image signal into a third image signal with the same image resolution as that of the first image signal includes:

and the processing module fills a plurality of first preset pixel signals after the second image signal to obtain a third image signal with the same image resolution as the first image signal.

Optionally, the first image signal includes a plurality of odd pixel signals and a plurality of even pixel signals that are sequentially interspersed; the driving board carries out resolution adjustment on the first image signal to obtain at least one second image signal, and the method comprises the following steps:

the driving board extracts each odd-numbered pixel signal from the first image signal to obtain a second odd-numbered group of image signals;

the driving board extracts each even pixel signal from the first image signal to obtain a second even group image signal.

the processing module is used for sequentially interleaving one even pixel signal in the second even group of image signals between every two adjacent odd pixel signals in the second odd group of image signals to obtain a third image signal with the same image resolution corresponding to the first image signal.

Optionally, the processing module processes the third image signal into a fourth image signal corresponding to the bar screen one to one according to the screen resolution and the image resolution of the bar screen, and includes:

the processing module splits the third image signal into intermediate image signals corresponding to the bar screens one by one according to the screen resolution of the bar screens;

and the processing module respectively fills a plurality of second preset pixel signals behind each intermediate image signal to obtain each fourth image signal with the same image resolution as that of the strip screen.

In order to solve the above problem, the invention also discloses an electronic device comprising the above display device.

Compared with the prior art, the invention has the following advantages:

in the embodiment of the invention, the display device can comprise an image access module, a driving board connected with the image access module, a processing module connected with the driving board, and at least two bar screens connected with the processing module. The image access module can be configured to input a first image signal to the driving board, wherein the first image signal comprises an image signal required by each strip-shaped screen; the driving board can be configured to adjust the resolution of the first image signal, obtain at least one second image signal, and output the second image signal to the processing module; the processing module may be configured to convert the at least one second image signal into a third image signal having the same image resolution as that corresponding to the first image signal, process the third image signal into fourth image signals corresponding to the bar screens one to one according to the screen resolution and the image resolution of the bar screens, and output each of the fourth image signals to the corresponding bar screen; the bar screen may be configured to display according to the fourth image signal. In the embodiment of the invention, the image signals required by each strip screen can be synthesized in the first image signals by utilizing the characteristic that the screen resolution of the strip screen is smaller than the image resolution of the strip screen, and then the image signals required by each strip screen can be split from the first image signals through the matching of the driving board and the processing module and processed into the signal form capable of being received by the strip screen, so that the strip screen can be displayed according to the received image signals, and thus, at least two strip screens can be driven through one image access module and one driving board.

Drawings

Fig. 1 is a schematic view of a display device according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a display device according to a first embodiment of the present invention;

FIG. 3 is a flowchart of an image display method according to a second embodiment of the present invention;

FIG. 4 is a flow chart of processing pixel signals according to a second embodiment of the present invention;

fig. 5 shows another flow chart for processing pixel signals according to the second embodiment of the invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example one

Referring to fig. 1, a schematic diagram of a display device according to a first embodiment of the invention is shown. The display device may include an image access module 10, a driving board 20, a processing module 30, and at least two bar screens 40. The image access module 10 may be connected to the driving board 20, the driving board 20 may be connected to the processing module 30, and the processing module 30 may be connected to each of the bar screens 40. All the devices in the display device are electrical devices, and accordingly, the connection mode between the devices may be specifically electrical connection.

Wherein the image access module 10 may be configured to input a first image signal to the driving board 20, wherein the first image signal includes an image signal required for each of the bar screens 40. In a specific application, the image access module 10 may be a gigabit network system, so that the image access module 10 may input a high-definition image to the driving board 20 at a transmission rate of giga level. The image access module 10 in the display device may be connected to a data source device outside the display device, and when a corresponding image needs to be displayed on each bar screen in the display device, the data source device may input a first image signal required by each bar screen into the image access module 10. The first image signal may include an image signal required by each bar screen 40, that is, the image content corresponding to the first image signal is formed by splicing the image content required to be displayed by each bar screen 40. In the embodiment of the present invention, the characteristic that the screen resolution of the bar screen 40 is smaller than the image resolution thereof may be utilized to combine the image signal required by each bar screen 40 into one first image signal, and then the image signal required by each bar screen 40 may be split from the first image signal through the cooperation of the driving board 20 and the processing module 30, and processed into a signal form that can be received by the bar screen 40, so that the bar screen 40 displays according to the received image signal, and thus, at least two bar screens 40 may be driven by one image access module 10 and one driving board 20.

The driving board 20 may be configured to perform resolution adjustment on the first image signal, obtain at least one second image signal, and output the second image signal to the processing module 30. In a specific application, the driving board 20 may be a driving panel including an SOC (System on Chip, also called System on Chip) Chip, and the output interface of the driving board 20 may be an LVDS (Low-Voltage Differential Signaling) interface. The signal transmission mode based on the LVDS interface may include a single-path LVDS interface transmission mode and a dual LVDS interface transmission mode, that is, the image signal may be transmitted between the driving board 20 and the processing module 30 through the single-path LVDS interface, or the image signal may be transmitted through the dual LVDS interface. The dual-path LVDS interface can divide an image signal to be output into two groups of pixel signals according to the odd and even numbers and output the two groups of pixel signals, and the single-path LVDS interface can delete the last part of the pixel signals of the image signal to be output when the image resolution corresponding to the image signal to be output is larger than the image resolution corresponding to the single-path LVDS interface, so that the image signal to be output accords with the image resolution corresponding to the single-path LVDS interface, and the processed image signal is output. Correspondingly, the driving board 20 may adjust the resolution of the first image signal according to the image resolution corresponding to its own output interface, so as to obtain at least one second image signal adapted to its own output interface, and further output the second image signal to the processing module 30.

The driving board 20 may include a first signal input interface and a first signal output interface, the processing module 30 may include a second signal input interface, the image access module 10 is connected to the first signal input interface of the driving board 20, and the first signal output interface of the driving board 20 is connected to the second signal input interface of the processing module 30. The image resolution corresponding to the first signal output interface is equal to the image resolution corresponding to the second signal input interface and is smaller than the image resolution corresponding to the first signal input interface; or the image resolutions corresponding to the first signal input interface, the first signal output interface and the second signal input interface are the same.

In practical applications, in order to adapt to the signal output interface of the image access module 10, the image resolution corresponding to the first signal input interface of the driving board 20 is equal to the image resolution corresponding to the image signal that can be output by the image access module 10. In a specific application, the image access module 10 may output a first image signal of FHD (Full High Definition) to the driver board 20, where an image resolution corresponding to the first image signal is 1920 × 1080, and correspondingly, an image resolution corresponding to the first signal input interface is 1920 × 1080. In addition, since the first signal output interface of the driving board 20 needs to be adapted to the second signal input interface of the processing module 30, the image resolution corresponding to the first signal output interface should be equal to the image resolution corresponding to the second signal input interface, and the image resolution corresponding to the first signal input interface and the image resolution corresponding to the second signal output interface may be smaller than or equal to the image resolution corresponding to the first signal input interface.

In a specific implementation manner, the first signal output interface and the second signal input interface may both be single-channel LVDS interfaces, that is, the image signal may be transmitted between the driving board 20 and the processing module 30 through the single-channel LVDS interface. The conventional single-path LVDS interface may input or output an image signal having an image resolution of 1280 × 720, and thus, in the case of transmitting the image signal between the driving board 20 and the processing module 30 through the single-path LVDS interface, an image resolution corresponding to a first signal output interface of the driving board 20 is smaller than an image resolution corresponding to a first signal input interface. Further, when the driver board 20 receives the first image signal, according to the image resolution corresponding to the single-path LVDS interface, the first 1280 × 720 pixel signals may be sequentially extracted from the 1920 × 1080 pixel signals of the first image signal as the second image signal, that is, the last partial pixel signal may be deleted, so as to obtain the second image signal adapted to the first signal output interface, and then the driver board 20 may output the second image signal to the processing module 30.

In another specific implementation manner, the first signal output interface and the second signal input interface may both be dual-channel LVDS interfaces, that is, the image signals may be transmitted between the driving board 20 and the processing module 30 through the dual-channel LVDS interfaces. According to the configuration of a conventional dual-way LVDS interface, an image signal needs to be split into a plurality of odd pixel signals and a plurality of even pixel signals, and then the odd pixel signals and the even pixel signals are output through different signal lines in the dual-way LVDS interface respectively. Correspondingly, when the image signal is transmitted between the driving board 20 and the processing module 30 through the dual LVDS interface, when the driving board 20 receives the first image signal, the 1920 × 1080 pixel signals of the first image signal may be split into the second odd group image signal containing 960 × 1080 odd pixel signals and the second even group image signal containing 960 × 1080 even pixel signals according to the image resolutions corresponding to the odd group signal lines and the even group signal lines in the dual LVDS interface, that is, two second image signals adapted to the second signal output interface of the processing module 30 may be obtained, and then the driving board 20 may output the second odd group image signal and the second even group image signal to the processing module 30.

In the embodiment of the invention, compared with the drive board with the two-way LVDS interface, the core frequency of the drive board with the one-way LVDS interface is lower, so that the heat productivity and the power consumption of the display device can be reduced by adopting the drive board with the one-way LVDS interface, and the cost of the drive board with the one-way LVDS interface is relatively lower, thereby saving the manufacturing cost of the display device.

Further, the processing module 30 may be configured to convert at least one second image signal into a third image signal having the same image resolution as that of the first image signal, process the third image signal into fourth image signals corresponding to the bar screens 40 one to one according to the screen resolution and the image resolution of the bar screens 40, and output each fourth image signal to the corresponding bar screen 40, where the third image signal includes an image signal required by each bar screen 40. In practical applications, the processing module 30 is specifically an FPGA (Field-Programmable Gate Array). In a specific application, when the signal transmission interfaces between the driving board 20 and the processing module 30 are different, when the processing module 30 receives at least one second image signal, the at least one second image signal may be converted into a third image signal having the same image resolution as that of the first image signal in a different manner.

If the image signal is transmitted between the driving board 20 and the processing module 30 through the single LVDS interface, the second image signal received by the processing module 30 is the first image signal from which a portion of the pixel signal is deleted, and correspondingly, the processing module 30 may fill a portion of the preset pixel signal, for example, a black pixel signal, after the second image signal, so as to obtain a third image signal having the same image resolution as the image resolution corresponding to the first image signal. In this manner, since a part of the pixel signals of the first image signal are deleted and then another pixel signal is supplemented, the image content corresponding to the third image signal is different from the image content corresponding to the first image signal, and accordingly, only the pixel signal part of the third image signal that is the same as the first image signal is an effective signal and can be used for displaying each bar screen 40.

If the image signals are transmitted between the driving board 20 and the processing module 30 through the dual LVDS interface, the two second image signals received by the processing module 30 are the first image signals split into two parts according to the odd and even numbers, and correspondingly, the processing module 30 may insert one even pixel signal after every two adjacent odd pixel signals, so that a third image signal with the same image resolution as the first image signal can be obtained. In this mode, since the first image signal is divided into two parts and the two parts are subsequently recombined, in this mode, the image content corresponding to the third image signal is the same as the image content corresponding to the first image signal, and accordingly, all the pixel signals in the third image signal are valid signals and can be used for displaying on each of the bar screens 40.

The processing module 30 may split the third image signal into intermediate image signals having the same number as the strip-shaped screens 40 according to the screen resolution of the strip-shaped screens 40, where the image resolution corresponding to the intermediate image signals is equal to the screen resolution of the strip-shaped screens 40. Further, the image resolution of the bar screen 40 is generally greater than the screen resolution of the bar screen 40 itself, that is, the image resolution corresponding to the image signal received by the bar screen 40 is generally greater than the image resolution corresponding to the image displayed by the bar screen 40. For example, the image resolution corresponding to the image signal that can be input into the bar screen 40 may be 1920 × 1080 or 1280 × 720, while the screen resolution of the bar screen 40 itself is generally smaller, generally 1920 × 135, so that, after obtaining each intermediate image signal, the processing module 30 may fill a preset pixel signal, for example, a black pixel signal, after each intermediate image signal according to the image resolution of the bar screen 40, so as to perform pixel supplementation on each intermediate image signal, so that each fourth image signal with the same image resolution as that of the bar screen 40 may be obtained. Thereafter, the processing module 30 may output each fourth image signal to the corresponding bar screen 40.

The bar screen 40 may include a third signal input interface, and the processing module 30 may include a second signal output interface connected to the third signal input interface of the bar screen 40 in a one-to-one correspondence. The image resolution corresponding to the second signal output interface is equal to the image resolution corresponding to the third signal input interface and is smaller than the image resolution corresponding to the first signal input interface; or the image resolutions corresponding to the first signal input interface, the second signal output interface and the third signal input interface are the same. Since the second signal output interface of the processing module 30 needs to be adapted to the third signal input interface of the bar screen 40, the image resolution corresponding to the second signal output interface should be equal to the image resolution corresponding to the third signal input interface, and the image resolution corresponding to the second signal output interface and the image resolution corresponding to the third signal input interface may be smaller than or equal to the image resolution corresponding to the first signal input interface.

The processing module 30 may also transmit the image signals through a dual-channel LVDS interface or a single-channel LVDS interface between the bar-shaped screens 40, and when the signal transmission interfaces between the processing module 30 and the bar-shaped screens 40 are different, the processing module 30 may output each fourth image signal to the corresponding bar-shaped screen 40 in different manners.

Specifically, in a specific implementation manner, the second signal output interface and the third signal input interface may both be dual-channel LVDS interfaces, that is, the image signal may be transmitted between the processing module 30 and the bar-shaped screen 40 through the dual-channel LVDS interfaces. Correspondingly, for the fourth image signal corresponding to any one of the bar screens 40, the processing module 30 may split the fourth image signal into a fourth odd group image signal and a fourth even group image signal according to the odd number, and then may output the fourth odd group image signal to the corresponding bar screen 40 through the odd group signal line in the second signal output interface, and output the fourth even group image signal to the corresponding bar screen 40 through the even group signal line in the second signal output interface.

In another specific implementation manner, the second signal output interface and the third signal input interface may both be single-channel LVDS interfaces, that is, the image signal may be transmitted between the processing module 30 and the bar screen 40 through the single-channel LVDS interface. Accordingly, for the fourth image signal corresponding to any one of the bar screens 40, since the image resolution corresponding to the fourth image signal supplemented with the pixel signal is the same as the image resolution of the bar screen 40, the processing module 30 may directly output the fourth image signal to the corresponding bar screen 40 in the case of transmitting the image signal between the processing module 30 and the bar screen 40 through the single LVDS interface.

Further, the bar screen 40 may be configured to display according to the fourth image signal. Specifically, in the case that the image signals are transmitted between the processing module 30 and the bar screen 40 through the dual LVDS interface, the bar screen 40 may receive the fourth odd group image signal and the fourth even group image signal sent by the processing module 30, and accordingly, the bar screen 40 may perform display according to the fourth odd group image signal and the fourth even group image signal. Under the condition that the image signal is transmitted between the processing module 30 and the bar screen 40 through the single LVDS interface, the bar screen 40 may receive a fourth image signal sent by the processing module 30, and accordingly, the bar screen 40 may directly display according to the fourth image signal.

It should be noted here that, since the screen resolution of the bar screen 40 is small, but the image resolution corresponding to the image signal receivable by the bar screen 40 is large, only the image portion corresponding to the screen resolution of the bar screen 40 can be displayed on the bar screen 40 when the bar screen 40 is displayed based on the input fourth image signal. For example, the image resolution corresponding to the fourth image signal may be 1920 × 1080 (product of 2073600), which is equal to the sum of the image resolutions corresponding to the fourth odd group image signal and the fourth even group image signal, and the screen resolution of the bar screen 40 may be 1920 × 135 (product of 259200), that is, 2073600 pixel signals need to be input to the bar screen 40, but only an image corresponding to the first 259200 pixel signals of 2073600 pixel signals can be displayed, and the rest 1814400 pixel signals cannot be displayed on the bar screen 40, but are pixel signals necessary for ensuring that the bar screen 40 can normally receive the image signals.

Furthermore, the driving board 20 may further include a first power output interface, and the processing module 30 may further include a first power input interface, wherein the first power output interface is connected to the first power input interface. Accordingly, the driver board 20 may be further configured to input a power voltage required by the processing module 30 into the first power input interface through the first power output interface to power the processing module 30. That is, the power voltage required by the processing module 30 can be input by the driving board 20 without being input from the outside of the display device, so that the external interfaces and wires of the display device can be reduced, and the assembly difficulty of the display device is reduced.

In addition, the driver board 20 may further include at least two second power output interfaces, and the bar screen 40 may further include a second power input interface, where the second power input interface is connected to the second power output interfaces in a one-to-one correspondence manner, and correspondingly, the driver board 20 may further be configured to input a power voltage required by the corresponding bar screen 40 to the corresponding second power input interface through the second power output interface, so as to supply power to the bar screen 40. That is, the power voltage required by the bar screen 40 can be input by the driving board 20 without being input from the outside of the display device, so that the external interfaces and wires of the display device can be reduced, and the assembly difficulty of the display device is reduced.

Fig. 2 shows a schematic structural diagram of a display device, and referring to fig. 2, the display device may specifically include an image access module 10, a driving board 20, a processing module 30, and two bar screens 40. The image access module 10 may be electrically connected to the driving board 20, the image access module 10 may be disposed on the driving board 20, the driving board 20 may be electrically connected to the processing module 30, and the processing module 30 may be electrically connected to each of the bar screens 40. Bar screen 40 has the display surface and the back relative with the display surface, and drive plate 20 and processing module 30 can set up the back at bar screen 40 of difference respectively to the bar screen that is provided with drive plate 20, can be on the basis of the bar screen hardware architecture of current specification, the adaptability change some power connecting wires and signal connection can, and then can reduce display device's the manufacturing degree of difficulty. In order for the driving board 20 to meet the assembly of the existing bar screen, the LVDS interface of the driving board 20 must be disposed at the right center of the driving board 20. In addition, referring to fig. 2, the driving board 20 may obtain a power supply voltage from the outside of the display device through the external power interface 01. The interface of the image access module 10 and the external power interface 01 of the driver board 20 need to be disposed at the bottom of the driver board 20, so that the display device can be adapted to the installation requirements of the devices such as the shelf, and the display device can be installed on the devices such as the shelf. In addition, since the connection line of the display device needs to be connected out from the rear of the whole device, the interface of the image access module 10 and the external power source interface 01 of the driving board 20 can be vertical interfaces, which is more convenient for the line connection after the installation of the bar screen 40 compared with the horizontal interfaces.

In addition, the power supply voltage required by the image access module 10, the processing module 30 and the two bar screens 40 can be provided by the driving board 20, so that the external interfaces and wires of the display device can be reduced, and the assembly difficulty of the display device can be reduced. Referring to fig. 2, the first signal output interface 201 of the driving board 20 may be electrically connected to the second signal input interface 301 of the processing module 30, so that the driving board 20 and the processing module 30 may transmit an image signal through the single-path LVDS interface, the core frequency of the driving board of the single-path LVDS interface is low, and thus the heat productivity and the power consumption of the display device may be reduced, and the cost of the driving board of the single-path LVDS interface is low compared to the driving board of the dual LVDS interface. Further, as shown in fig. 2, the first power output interface 202 of the driving board 20 may be electrically connected with the first power input interface 302 of the processing module 30, so that the driving board 20 may supply power to the processing module 30. In addition, in order to further reduce the assembly difficulty and reduce the wire consumption, the first power output interface 202 may be disposed on the side of the driving board 20 close to the processing module 30, and the first power input interface 302 may be disposed on the side of the processing module 30 close to the driving board 20. The driving board 20 may also directly supply power to the strip-shaped screen 40, and may also supply power to other strip-shaped screens 40 through the processing module 30, which is not particularly limited in this embodiment of the present invention.

Since the conventional bar screen is a dual LVDS interface, the processing module 30 and the bar screen 40 can transmit the image signal through the dual LVDS interface. As shown in fig. 2, one second signal output interface 303 of the processing module 30 may be electrically connected to the third signal input interface 401 of the first bar screen 40, and another second signal output interface 303 of the processing module 30 may be electrically connected to the third signal input interface 401 of the second bar screen 40, so that the processing module 30 may transmit image signals to the two bar screens 40 through two dual LVDS interfaces, respectively, and each bar screen 40 may perform displaying according to the received image signals.

It should be noted that fig. 2 only shows a part of structures and a part of connecting lines in the display device, and other structures or connecting lines not shown may also be included in practical applications, which is not specifically limited in this embodiment of the present invention. The schematic structure of the display device shown in fig. 2 is only an example of the structure of one display device, and the connection line position, the connection mode, the device position, the number of interfaces, and the like are not limited to the present invention.

Example two

Referring to fig. 3, a flowchart illustrating steps of an image display method according to a second embodiment of the present invention is shown, the image display method including the steps of:

step 301: the image access module inputs a first image signal to the driving board; the first image signal includes an image signal required for each bar screen.

In the embodiment of the present invention, the image access module in the display device may be connected to a data source device outside the display device, and when a corresponding image needs to be displayed on each bar screen in the display device, the data source device may input a first image signal required by each bar screen into the image access module in the display device, and then the image access module inputs the first image signal to the driving board.

The first image signal may include an image signal required by each bar screen, that is, the image content corresponding to the first image signal is formed by splicing the image content required to be displayed by each bar screen. In practical applications, the image content required to be displayed by each bar screen may be the same or different, and this is not particularly limited in this embodiment of the present invention.

For example, the image access module may acquire a first image signal having an image resolution of 1920 × 1080 from outside the display device and then input the first image signal to the driving board.

Step 302: the driving board carries out resolution adjustment on the first image signals to obtain at least one second image signal.

In the embodiment of the present invention, an image signal may be transmitted between the driving board and the processing module through a single LVDS interface, where the first image signal includes a plurality of pixel signals, and accordingly, the step may be specifically implemented in a manner including: the driving board extracts pixel signals of a target number in sequence from a plurality of pixel signals of the first image signal to obtain a second image signal; the target number is equal to the number of pixels contained in the image resolution corresponding to the signal output interface of the driving board.

For example, referring to fig. 4, for a first image signal with an image resolution of 1920 × 1080, the first image signal collectively includes 2073600 pixel signals, the image resolution corresponding to the one-way LVDS interface of the driving board may be 1280 × 720, and the number of pixels included in the image resolution of 1280 × 720 is 921600, that is, 921600 pixel signals may be included in the image signal that can be output by the signal output interface of the driving board. The driving board may sequentially extract the first 921600 pixel signals from 2073600 pixel signals of the first image signal, wherein 921600 pixel signals constitute the second image signal, and the image resolution of the second image signal is 1280 × 720.

In addition, an image signal can be transmitted between the driving board and the processing module through a dual-channel LVDS interface, the first image signal includes a plurality of odd-numbered pixel signals and a plurality of even-numbered pixel signals which are sequentially inserted, and accordingly, the step can be specifically realized through the following modes, including: the driving board extracts each odd-numbered pixel signal from the first image signal to obtain a second odd-numbered group of image signals; the driving board extracts each even pixel signal from the first image signal to obtain a second even group image signal.

For example, referring to fig. 5, for a first image signal with an image resolution of 1920 × 1080, where the first image signal includes 2073600 pixel signals in total, the image resolution corresponding to the dual-path LVDS interface of the driving board may be 1920 × 1080, where the image resolution corresponding to the odd group of signal lines in the dual-path LVDS interface is 960 × 1080, and the image resolution corresponding to the even group of signal lines is also 960 × 1080. The driving board may extract 1 st, 3 rd, 5 th, 7 th, and 2073599 th pixel signals from 2073600 pixel signals of the first image signal, so that a total of 1036800 odd pixel signals of the first image signal may be extracted to constitute a second odd group image signal. The driving board may further extract 2 nd, 4 th, 6 th, 8 th, and 2073600 th pixel signals from 2073600 pixel signals of the first image signal, so that a total of 1036800 even pixel signals of the first image signal may be extracted to constitute a second even group image signal. That is, the driving boards may split the first image signal into the second odd group image signals and the second even group image signals each having an image resolution of 960 × 1080 in terms of parity.

Step 303: the driving board outputs the second image signal to the processing module.

In the embodiment of the invention, after the driving board processes the obtained second image signal, the driving board may output the second image signal to the processing module.

Specifically, in the case that the image signal is transmitted between the driving board and the processing module through the single-path LVDS interface, the driving board may directly output the second image signal to the processing module through the single-path LVDS interface. Under the condition that the image signals are transmitted between the driving board and the processing module through the dual-path LVDS interface, the driving board can output the second odd group of image signals to the processing module through the odd group of signal lines in the dual-path LVDS interface, and output the second even group of image signals to the processing module through the even group of signal lines in the dual-path LVDS interface.

For example, the driving board and the processing module transmit image signals through a single LVDS interface, and accordingly, referring to fig. 4, the driving board may directly output a second image signal having an image resolution of 1280 × 720 to the processing module.

For another example, the driving board and the processing module transmit image signals through the dual LVDS interface, and accordingly, referring to fig. 5, the driving board may output the second odd group image signals with the image resolution of 960 × 1080 to the processing module through one of the two signal output interfaces, and output the second even group image signals with the image resolution of 960 × 1080 to the processing module through the other of the two signal output interfaces.

In the embodiment of the invention, the characteristic that the screen resolution of the strip-shaped screen is smaller than the image resolution of the strip-shaped screen can be utilized to synthesize the image signal required by each strip-shaped screen into one first image signal, and then the image signal required by each strip-shaped screen can be subsequently split from the first image signal through the matching of the driving board and the processing module and processed into a signal form capable of being received by the strip-shaped screen, so that the strip-shaped screen can be displayed according to the received image signal, and thus, at least two strip-shaped screens can be driven through one image access module and one driving board.

Step 304: the processing module converts at least one second image signal into a third image signal which has the same image resolution and corresponds to the first image signal; wherein the third image signal includes an image signal required for each of the bar screens.

In the embodiment of the present invention, when receiving the second image signal input by the driving board, the processing module may convert the received second image signal into a third image signal with the same image resolution as that of the first image signal, where the third image signal also includes an image signal required by each strip-shaped screen.

Specifically, in the case of transmitting the image signals between the driving board and the processing module through the single LVDS interface, since the driving board deletes a part of the pixel signals in the first image signal when obtaining the second image signal, so that the number of the pixel signals included in the second image signal is less than the number of the pixel signals included in the first image signal, the processing module may obtain the third image signal by: the processing module fills a plurality of first preset pixel signals after the second image signal to obtain a third image signal which corresponds to the first image signal and has the same image resolution.

In the above manner, since the first image signal is deleted with a part of the pixel signals, and then is supplemented with another pixel signal, for the above manner, the image content of the third image signal pair is different from the image content of the first image signal, and accordingly, only the pixel signal part in the third image signal that is the same as the first image signal is an effective signal, and can be used for displaying each bar screen 40, and therefore, the first preset pixel signal that is subsequently supplemented can be any pixel signal. In practical applications, the first predetermined pixel signal may be a black pixel signal, a white pixel signal, and the like, which is not particularly limited in the embodiment of the present invention.

For example, referring to fig. 4, the processing module may, upon receiving a second image signal having an image resolution of 1280 × 720, fill 1152000 black pixel signals (black crosses in fig. 4) after the second image signal, thereby obtaining a third image signal having the same image resolution 1920 × 1080 as that of the first image signal.

It should be noted that, with the above-mentioned method, since the same pixel signal portion as the first image signal in the third image signal is the effective signal, in a specific application, the number of the bar-shaped screens included in one display device needs to be set by comprehensively considering the screen resolution of the bar-shaped screens and the number of the effective pixel signals in the third image signal. For example, the third image signal with an image resolution of 1920 × 1080 is obtained by deleting 1152000 pixel signals from the first image signal and then supplementing another 1152000 pixel signals, and accordingly, only the first 921600 pixel signals in the third image signal are valid pixel signals, so that, for the above-described manner of obtaining the third image signal, only 3 bar panels with a screen resolution of 1920 × 135 can be included in one display device at most, and if more bar panels are included, the filled black pixel signals are displayed on the bar panels after the 4 th bar panel, and valid information cannot be displayed.

In addition, under the condition that the image signals are transmitted between the driving board and the processing module through the dual-way LVDS interface, because the two second image signals received by the processing module are the first image signals split into two parts according to the parity number, the processing module may further obtain a third image signal by: the processing module is used for sequentially inserting one even pixel signal in the second even group of image signals between every two adjacent odd pixel signals in the second odd group of image signals to obtain a third image signal with the same image resolution corresponding to the first image signal.

In the above mode, since the first image signal is split into two parts, and the two parts are subsequently recombined, the third image signal pair has the same image content as that of the first image signal, and accordingly, all the pixel signals in the third image signal are valid signals and can be used for displaying on each bar screen.

For example, referring to fig. 5, when receiving a second odd group image signal with an image resolution of 960 × 1080 and a second even group image signal with an image resolution of 960 × 1080, the processing module may sequentially interleave one even pixel signal of the second even group image signals between every two adjacent odd pixel signals of the second odd group image signal, so as to obtain a third image signal with an image resolution of 1920 × 1080 identical to that of the first image signal.

It should be noted that, with the above-mentioned method, since all the pixel signals in the third image signal are valid signals, in a specific application, the number of the bar screens included in one display device only needs to consider the screen resolution of the bar screen itself. For example, the third image signal with an image resolution of 1920 × 1080 is obtained by performing odd-even splitting and then recombining on the first image signal, and accordingly, all 2073600 pixel signals in the third image signal are valid pixel signals, so that, for the above-described manner of obtaining the third image signal, a maximum of 8 bar screens with a screen resolution of 1920 × 135 can be included in one display device, and each bar screen can display valid information.

Step 305: and the processing module is used for processing the third image signal into fourth image signals which correspond to the bar screens one by one according to the screen resolution and the image resolution of the bar screens.

In the embodiment of the present invention, in order to segment the image signal required by each bar screen from the third image signal and enable the image signal output by the processing module to be normally received by the bar screen, the following steps may be specifically implemented, including: the processing module splits the third image signal into intermediate image signals corresponding to the bar screens one by one according to the screen resolution of the bar screens; and the processing module respectively fills a plurality of second preset pixel signals behind each intermediate image signal to obtain each fourth image signal with the same image resolution as that of the strip screen.

The processing module can split the third image signal into intermediate image signals with the same number as the strip screens according to the screen resolution of the strip screens, wherein the image resolution corresponding to the intermediate image signals is equal to the screen resolution of the strip screens. Then, since the image resolution corresponding to the image signal capable of inputting the bar screen is usually greater than the screen resolution of the bar screen itself, the processing module may fill a plurality of second preset pixel signals after each intermediate image signal, so as to obtain each fourth image signal having the same image resolution as the bar screen, that is, obtain the fourth image signal receivable by the bar screen. In practical applications, the second predetermined pixel signal may be a black pixel signal, a white pixel signal, and the like, which is not particularly limited in the embodiment of the present invention.

It should be noted that the first preset pixel signal and the second preset pixel signal may be the same, for example, both of them may be black pixel signals. Of course, in practical applications, the first preset pixel signal and the second preset pixel signal may also be different, for example, one of the first preset pixel signal and the second preset pixel signal may be a black pixel signal, and the other one may be a white pixel signal, which is not particularly limited in the embodiment of the present invention.

For example, referring to fig. 4 and 5, the screen resolution of the bar screen may be 1920 × 135, the image resolution of the bar screen may be 1920 × 1080 when the bar screen adopts a dual-path LVDS interface, and the image resolution of the bar screen may be 1280 × 720 when the bar screen adopts a single-path LVDS interface. Correspondingly, the processing module may split the pixel signals of the 1 st line to the 135 th line in the third image signal according to a screen resolution 1920 × 135 of the stripe screen to form an intermediate image signal corresponding to the 1 st stripe screen, split the pixel signals of the 136 th line to the 270 th line in the third image signal to form an intermediate image signal corresponding to the 2 nd stripe screen, and so on until all the intermediate image signals corresponding to the stripe screens are split. Then, when the image resolution of the stripe screen is 1920 × 1080, the processing module may fill 1814400 black pixel signals respectively after each intermediate image signal in accordance with the image resolution of the stripe screen 1920 × 1080, so that respective fourth image signals identical to the image resolution of the stripe screen 1920 × 1080 may be obtained. When the image resolution of the bar screen is 1280 × 720, the processing module may fill 662400 black pixel signals, respectively, after each intermediate image signal in accordance with the image resolution 1280 × 720 of the bar screen, so that each fourth image signal identical to the image resolution 1280 × 720 of the bar screen may be obtained.

Step 306: and the processing module outputs each fourth image signal to the corresponding strip screen.

In the embodiment of the present invention, if the processing module and the bar-shaped screen transmit the image signals through the dual-channel LVDS interface, for a fourth image signal corresponding to any one of the bar-shaped screens, the processing module may split the fourth image signal into a fourth odd group of image signals and a fourth even group of image signals according to the odd number and the even number, and further the processing module may output the fourth odd group of image signals to the corresponding bar-shaped screen through the odd group of signal lines in the dual-channel LVDS interface and output the fourth even group of image signals to the bar-shaped screen through the even group of signal lines in the dual-channel LVDS interface.

For example, referring to fig. 4 and 5, for a fourth image signal corresponding to any one of the bar screens, the image resolution corresponding to the fourth image signal may be 1920 × 1080, the processing module may split the fourth image signal into a fourth odd group image signal with image resolution of 960 × 1080 and a fourth even group image signal with image resolution of 960 × 1080 according to the odd-even number, and then the processing module may output the fourth odd group image signal to the corresponding bar screen through the odd group signal line in the dual LVDS interface and output the fourth even group image signal to the bar screen through the even group signal line in the dual LVDS interface.

If the image signal is transmitted between the processing module and the bar screen through the single-channel LVDS interface, the image resolution corresponding to the fourth image signal supplemented with the pixel signal is the same as the image resolution of the bar screen, so that the processing module can directly output the fourth image signal to the corresponding bar screen.

For example, for a fourth image signal corresponding to any one of the strip screens, the image resolution corresponding to the fourth image signal may be 1280 × 720, and the processing module may directly output the fourth image signal with the image resolution of 1280 × 720 to the corresponding strip screen with the image resolution of 1280 × 720.

Step 307: and the bar screen displays according to the fourth image signal.

In the embodiment of the present invention, when the image signal is transmitted between the processing module and the bar screen through the dual LVDS interface, the bar screen may receive the fourth odd group image signal and the fourth even group image signal sent by the processing module, and correspondingly, the bar screen may display according to the fourth odd group image signal and the fourth even group image signal and according to the display mode corresponding to the dual LVDS interface.

Under the condition that the image signal is transmitted between the processing module and the bar screen through the single-channel LVDS interface, the bar screen may receive the fourth image signal sent by the processing module 30, and accordingly, the bar screen may directly display according to the fourth image signal.

In the embodiment of the invention, the image access module can input a first image signal including an image signal required by each bar screen to the driving board, the driving board may then perform resolution adjustment on the first image signal to obtain at least one second image signal, output the second image signal to the processing module, and then the processing module may convert the at least one second image signal into a third image signal having the same image resolution as that of the first image signal, wherein the third image signal comprises an image signal required by each strip screen, and the processing module can process the third image signal into fourth image signals corresponding to the strip screens one by one according to the screen resolution and the image resolution of the strip screens, and each fourth image signal is output to the corresponding bar screen, and the bar screen can display according to the fourth image signal. In the embodiment of the invention, the image signals required by each strip screen can be synthesized in the first image signals by utilizing the characteristic that the screen resolution of the strip screen is smaller than the image resolution of the strip screen, and then the image signals required by each strip screen can be split from the first image signals through the matching of the driving board and the processing module and processed into the signal form capable of being received by the strip screen, so that the strip screen can be displayed according to the received image signals, and thus, at least two strip screens can be driven through one image access module and one driving board.

EXAMPLE III

The embodiment of the invention also discloses electronic equipment comprising the display device.

In the embodiment of the present invention, the display device in the electronic device may include an image access module, a driving board connected to the image access module, a processing module connected to the driving board, and at least two bar screens connected to the processing module. The image access module can be configured to input a first image signal to the driving board, wherein the first image signal comprises an image signal required by each strip-shaped screen; the driving board can be configured to adjust the resolution of the first image signal, obtain at least one second image signal, and output the second image signal to the processing module; the processing module may be configured to convert the at least one second image signal into a third image signal having the same image resolution as that corresponding to the first image signal, process the third image signal into fourth image signals corresponding to the bar screens one to one according to the screen resolution and the image resolution of the bar screens, and output each of the fourth image signals to the corresponding bar screen; the bar screen may be configured to display according to the fourth image signal. In the embodiment of the invention, the image signals required by each strip screen can be synthesized in the first image signals by utilizing the characteristic that the screen resolution of the strip screen is smaller than the image resolution of the strip screen, and then the image signals required by each strip screen can be split from the first image signals through the matching of the driving board and the processing module and processed into the signal form capable of being received by the strip screen, so that the strip screen can be displayed according to the received image signals, and thus, at least two strip screens can be driven through one image access module and one driving board.

While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The use of the phrase "including a" does not exclude the presence of other, identical elements in the process, method, article, or apparatus that comprises the same element, whether or not the same element is present in all of the same element.

The display device, the image display method and the electronic device provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A display device is characterized by comprising an image access module, a driving board, a processing module and at least two strip-shaped screens; the image access module is connected with the driving board, the driving board is connected with the processing module, and the processing module is respectively connected with each strip-shaped screen;

the bar screen is configured to display according to the fourth image signal.

2. The display device according to claim 1, wherein the driving board comprises a first signal input interface and a first signal output interface, the processing module comprises a second signal input interface, the image access module is connected to the first signal input interface of the driving board, and the first signal output interface of the driving board is connected to the second signal input interface of the processing module;

3. The display device according to claim 2, wherein the first signal output interface and the second signal input interface are both single-channel LVDS interfaces, or the first signal output interface and the second signal input interface are both dual-channel LVDS interfaces.

4. The display device according to claim 1, wherein the bar screen comprises a third signal input interface, and the processing module comprises a second signal output interface connected with the third signal input interface of the bar screen in a one-to-one correspondence manner;

5. The display device according to claim 4, wherein the second signal output interface and the third signal input interface are both single-channel LVDS interfaces, or the second signal output interface and the third signal input interface are both dual-channel LVDS interfaces.

6. The display device of claim 1, wherein the bar screen has a display side and a back side opposite the display side; the driving board and the processing module are respectively arranged on the back sides of the different strip-shaped screens.

7. The display device according to claim 1, wherein the driving board further comprises a first power output interface, and the processing module further comprises a first power input interface, and the first power output interface is connected to the first power input interface; the driving board is also configured to input a power supply voltage required by the processing module into the first power supply input interface through the first power supply output interface so as to supply power to the processing module;

and/or the presence of a gas in the gas,

8. The display device according to claim 1, wherein the processing module is a Field Programmable Gate Array (FPGA).

9. An image display method applied to the display device according to any one of claims 1 to 8, the method comprising:

the driving board outputs the second image signal to a processing module;

and the bar screen displays according to the fourth image signal.

10. The method according to claim 9, wherein the first image signal includes a plurality of pixel signals; the driving board carries out resolution adjustment on the first image signal to obtain at least one second image signal, and the method comprises the following steps:

11. The method of claim 10, wherein the processing module converts the at least one second image signal into a third image signal having a same image resolution as the first image signal, and comprises:

12. The method of claim 9, wherein the first image signal comprises a plurality of odd pixel signals and a plurality of even pixel signals interspersed in sequence; the driving board carries out resolution adjustment on the first image signal to obtain at least one second image signal, and the method comprises the following steps:

13. The method of claim 12, wherein the processing module converts the at least one second image signal into a third image signal having a same image resolution as the first image signal, and comprises:

14. The method according to claim 9, wherein the processing module processes the third image signal into a fourth image signal corresponding to the bar screen in a one-to-one manner according to the screen resolution and the image resolution of the bar screen, and comprises:

15. An electronic device characterized by comprising the display device according to any one of claims 1 to 8.