CN112750389A

CN112750389A - Testing device

Info

Publication number: CN112750389A
Application number: CN202010023282.2A
Authority: CN
Inventors: 李本友
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-10-31
Filing date: 2020-01-09
Publication date: 2021-05-04

Abstract

The test device comprises a controller, a first storage unit and a second storage unit, wherein the controller is configured to detect user operation or detect a preset file generation control instruction; a driving device configured to generate a first screen-up signal and a screen control signal in response to the control instruction; a switching device configured to convert the first screen up signal into a second screen up signal matched with a display panel and output the screen control signal; a display panel configured to perform screen lighting under the second upper screen signal; a test box configured to detect the screen control signal. This scheme adopts general display module assembly when debugging or maintaining the mainboard especially, has increased the practicality of TCONLESS scheme, has saved the cost of debugging and maintenance.

Description

Testing device

This patent application claims priority to chinese patent application No. 201911054219.9 filed on 31/10/2019, which is incorporated herein by reference in its entirety.

Technical Field

The application relates to the technical field of liquid crystal televisions, in particular to a testing device.

Background

With the development of the liquid crystal television market, market competition becomes very strong, so that higher requirements are made on the cost of the liquid crystal television.

Therefore, in the related art, a counter Control Register (TCON) board of the liquid crystal display panel is generally integrated on a television main board, a TCON Chip is integrated in a System On Chip (SOC), and a P2P (Point to Point) signal is directly output to the display panel for display, which is an effective way to reduce cost, that is, a TCONLESS scheme.

However, because specification information and compatible communication protocols of display panels produced by different manufacturers are different, models of a main board and the display panel must be matched and corresponded to each other to normally display a picture, and a factory needs to prepare a corresponding display panel for a television using display panels of different specifications during debugging or after-sales maintenance to light the display panel through a TCONLESS board to debug or maintain the TCONLESS board, which results in higher maintenance and production costs.

Disclosure of Invention

The application provides a testing device, aims at overcoming the problem that TCONLESS board can not be compatible with multiple display panels in the prior art, and the maintenance and production cost are higher.

The present application provides a test device, the device includes:

the controller is configured to detect user operation or detect a preset file generation control instruction;

a driving device configured to generate a first screen-up signal and a screen control signal in response to the control instruction;

a switching device configured to convert the first screen up signal into a second screen up signal matched with a display panel and output the screen control signal;

a display panel configured to perform screen lighting under the second upper screen signal;

a test box configured to detect the screen control signal.

In some embodiments, the display panel includes a VbyOne interface, and the second upper screen signal matches the VbyOne interface and drives the display panel to display.

In some embodiments, the display panel comprises a P2P signal interface, and the second top screen signal matches the P2P signal interface and drives the display panel to display.

In some embodiments, the transition device further comprises: the circuit comprises an analog-digital conversion sub-circuit, a Micro Control Unit (MCU) sub-circuit and a level conversion sub-circuit;

the MCU sub-circuit is respectively connected with the analog-to-digital conversion sub-circuit and the level conversion sub-circuit;

the analog-to-digital conversion sub-circuit is used for converting the screen control signal from an analog signal to a digital signal;

the MCU sub-circuit is used for acquiring the digital signal and sending the digital signal to the level conversion sub-circuit;

the level conversion sub-circuit is used for boosting the digital signal.

In some embodiments, the transition device further comprises: and the line sequence arranging circuit is used for adjusting the line sequence of the first screen-up signal output by the driving device to obtain a second screen-up signal matched with the display panel.

In some embodiments, the screen control signal includes a GAMMA correction GAMMA voltage, a voltage control signal for supplying power to the display panel, and a driving control voltage for driving the display panel to display.

In some embodiments, the input sockets of the patching device are two 60pin sockets, and the output socket of the patching circuit is a 51pin socket.

In some embodiments, the test box is further configured to determine, according to the received screen control signal and a preset standard range of each voltage, whether each screen control signal is within a corresponding standard range of voltage;

if so, determining that the screen control signal is normal;

and if at least one screen control signal is not in the standard range of the corresponding voltage, determining that the screen control signal is abnormal.

In some embodiments, the controller is configured to: detecting specification information of a display panel to be controlled in a starting process, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type;

and generating the control instruction according to the specification information, wherein the control instruction comprises screen parameters to be set.

In some embodiments, the drive device is configured to:

in the Boot stage, setting an environment variable corresponding to the screen parameter to be set according to the control instruction;

in a system starting stage, setting screen parameters corresponding to environment variables by detecting the currently set environment variables;

and generating the first screen-up signal and the screen control signal according to the screen parameters.

The present application further provides a test device, the device comprising: the display device comprises a main board and a display module connected with the main board, wherein a screen driving circuit is arranged in the main board, and the display module comprises a display panel;

the main board is used for acquiring a control instruction and generating a screen-up signal and a screen control signal corresponding to the display module according to the control instruction; the control instruction is generated by the mainboard through detecting user operation or detecting a preset file; the screen control signal comprises GAMMA correction GAMMA voltage, a voltage control signal for supplying power to the display panel and a driving control voltage for driving the display panel to display;

the display panel is configured to drive the display module to display according to the screen loading signal and/or the screen control signal.

In a specific implementation manner, the display module includes a first display module, and the first display module includes a first display panel and a switching circuit connected to the first display panel; if the control instruction is a first control instruction for instructing the main board to generate a signal corresponding to the first display panel, the output end of the main board is connected with the input end of the first display panel through the switching circuit;

the switching circuit is used for providing power supply voltage for the first display panel;

the main board is used for generating a first screen-up signal and a screen control signal according to the first control instruction; the first upper screen signal is 8 groups of differential signal pairs which accord with a digital interface standard VbyOne; the first display panel is provided with a VbyOne interface;

the main board is further used for sending the first screen-up signal to the first display panel through the switching circuit, and driving the first display panel to display.

In some embodiments, the apparatus further comprises: a control signal detection circuit;

the main board is connected with the control signal detection circuit through the switching circuit;

the switching circuit is used for carrying out signal conversion on the screen control signal sent by the mainboard and then sending the screen control signal to the control signal detection circuit;

the control signal detection circuit is used for detecting whether the screen control signal is normal or not.

In some embodiments, the patching circuit includes: a screen control signal processing circuit;

the screen control signal processing circuit includes: the circuit comprises an analog-digital conversion sub-circuit, a Micro Control Unit (MCU) sub-circuit and a level conversion sub-circuit;

the level conversion sub-circuit is used for boosting the digital signal.

In some embodiments, the patching circuit further comprises: a line sequence sorting circuit;

the line sequence arranging circuit is connected between the mainboard and the screen control signal processing circuit and comprises a plurality of input sockets and two output sockets;

and the line sequence arranging circuit is used for matching the line sequence of the output end of the mainboard with the line sequence of the input end of the screen control signal processing circuit.

In some embodiments, the patching circuit includes: the power supply device comprises an input socket, an output socket and a power supply circuit;

the switching circuit is connected with an output socket of the mainboard through the input socket and receives the first screen-up signal and the screen control signal sent by the mainboard;

the switching circuit is connected with an input socket of the first display panel through the output socket;

the switching circuit sends the first screen-up signal to a screen-up signal input pin of an input socket of the first display panel through a screen-up signal output pin in the output socket;

the power supply circuit is connected with a power supply pin of an input socket of the first display panel through a power supply pin of an output socket, and provides power supply voltage for the first display panel.

In some embodiments, the input sockets of the patching circuit are two 60pin sockets and the output socket of the patching circuit is a 51pin socket.

In some embodiments, the patching circuit further comprises: a control signal output terminal;

the control signal output end is connected with the input end of the control signal detection circuit;

the switching circuit sends the screen control signal to the control signal detection circuit through the control signal output end.

In some embodiments, the display module comprises a second display module comprising a second display panel; if the control instruction is a second control instruction for instructing the main board to generate a signal corresponding to the second display panel, the output end of the main board is connected with the input end of the second display panel;

the main board is used for generating a second screen-up signal and the screen control signal according to the second control instruction; the second screen-up signal is a plurality of groups of P2P signal pairs; the second display panel is provided with a plurality of groups of P2P signal interfaces;

the main board is further configured to send the second screen-up signal and/or the screen control signal to the second display panel, and drive the second display panel to display.

In some embodiments, the motherboard comprises: the system comprises a main chip, a power management PMU circuit, a GAMMA correction GAMMA circuit, a level conversion circuit and an output socket; the main chip is an integrated chip of an SOC chip and a TCON chip;

a power supply control pin of the main chip is connected with a power supply pin of the PMU circuit and provides power supply voltage for the PMU circuit; the main chip is connected to bus pins of the PMU circuitry and the GAMMA circuitry via bus pins, and is in communication with the PMU circuitry and the GAMMA circuitry; the main chip is connected with an input pin of the level conversion circuit through a drive control pin and sends a drive control signal to the level conversion circuit; the PMU circuit is connected with the GAMMA circuit; the output socket is connected with an upper screen signal output pin of the main chip and is connected with output pins of the PMU circuit, the GAMMA circuit and the level conversion circuit;

the main chip is used for generating the screen-up signal and the control signal according to the control instruction;

the PMU circuit is used for outputting the voltage control signal according to the control signal;

the GAMMA circuit is used for outputting the GAMMA voltage signal according to the control signal;

the level conversion circuit is used for carrying out level conversion on the control signal sent by the main chip to obtain a driving control signal and outputting the driving control signal.

In some embodiments, the output sockets of the motherboard are two 60pin sockets.

The application also provides a control method of the display panel, which is applied to a control device testing device of the display panel, wherein the display device comprises a mainboard and a display module connected with the mainboard, and the method comprises the following steps:

the main board obtains a control instruction;

the main board generates a screen-up signal and a screen control signal corresponding to the display module according to the control instruction;

the mainboard drives the display module to display according to the screen loading signal and/or the screen control signal;

the on-screen signal is a plurality of groups of differential signal pairs; the screen control signals include GAMMA corrected GAMMA voltages, voltage control signals to provide power to the display panel, and drive control voltages to drive the display panel to display.

In some embodiments, the method further comprises:

determining whether the content displayed by the display module meets a preset display standard;

if so, the screen-up signal generated by the mainboard is normal;

otherwise, the screen-up signal generated by the mainboard is abnormal.

In some embodiments, the display module includes a first display module, where the first display module includes a first display panel and a switching circuit connected to the first display panel, and if the control instruction is a first control instruction, the generating a screen-up signal and a screen control signal corresponding to the display module according to the control instruction includes:

the main board generates a first screen-up signal and a screen control signal according to the first control instruction; the first upper screen signal is 8 groups of differential signal pairs which accord with a digital interface standard VbyOne; the first display panel of the first display module is provided with a VbyOne interface; the first control instruction is used for indicating to generate a signal corresponding to the first display panel;

the mainboard sends the first screen-up signal to the first display panel through the switching circuit of the first display module, and drives the first display panel to display.

In some embodiments, the display device further comprises a control signal detection circuit, the method further comprising:

the switching circuit carries out signal conversion on the screen control signal and then sends the screen control signal to the control signal detection circuit for detection.

In some embodiments, the signal converting the screen control signal includes:

converting the screen control signal from an analog signal to a digital signal;

and boosting the digital signal to obtain a processed screen control signal.

In some embodiments, the method further comprises:

the control signal detection circuit determines whether each screen control signal is in a corresponding standard range of voltage according to the received screen control signal and the preset standard range of each voltage;

if so, determining that the screen control signal generated by the mainboard is normal;

and if at least one screen control signal is not in the standard range of the corresponding voltage, determining that the screen control signal generated by the mainboard is abnormal.

In some embodiments, the display module includes a second display module, the second display module includes a second display panel, and if the control instruction is a second control instruction, the generating a screen-up signal and a screen control signal corresponding to the display module according to the control instruction includes:

the main board generates a second screen-up signal and the screen control signal according to the second control instruction; the second screen-up signal is a plurality of groups of P2P signal pairs; the second display panel is provided with a plurality of groups of P2P signal interfaces;

and the mainboard sends the second screen loading signal and/or the screen control signal to the second display panel to drive the second display panel to display.

In some embodiments, the obtaining the control instruction comprises:

in the starting process, the main board detects specification information of a display module to be controlled, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type;

In some embodiments, the detecting specification information of the display module to be controlled includes:

detecting whether a first operation input by a user is received in a starting process; if so, determining the specification information as the specification information corresponding to the first display module; otherwise, determining the specification information as the specification information corresponding to the second display module;

alternatively, the first and second electrodes may be,

detecting whether a mobile storage medium connected with a control device testing device of the display panel exists or not; if so, the mainboard reads the preset file and determines the specification information of the display module to be controlled according to the preset file; otherwise, determining the specification information as the specification information corresponding to the second display module; wherein the preset file is stored in the mobile storage medium.

In some embodiments, the generating a screen-up signal and a screen control signal corresponding to a display module according to the control instruction includes:

and generating a screen-up signal and a screen control signal corresponding to the display module according to the screen parameters.

In some embodiments, the setting an environment variable corresponding to the screen parameter to be set includes:

determining whether the screen parameters set during the last startup are consistent with the screen parameters to be set;

and if not, setting a corresponding environment variable according to the screen parameter to be set.

The test device provided by the embodiment of the application comprises a controller, a driving device is controlled to generate a first screen-on signal and a screen control signal after the controller receives user operation or detects a preset file, the first screen-on signal is converted in a switching device to obtain a second screen-on signal, the second screen-on signal can drive a display panel to light a screen, and the screen control signal can be output to a test box to be detected. By the scheme, different display panels can be matched for debugging or maintenance, the display panel corresponding to the driving device does not need to be found, and the debugging and maintenance cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the related art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of a testing apparatus provided in the present application;

FIG. 2 is a schematic structural diagram of an embodiment of a testing apparatus according to the present disclosure;

FIG. 3 is a schematic structural diagram of an embodiment of a testing apparatus according to the present disclosure;

fig. 4a is a first schematic structural diagram of a switching circuit according to an embodiment of the present disclosure;

fig. 4b is a schematic structural diagram of a second adaptor circuit according to an embodiment of the present application;

fig. 4c is a schematic structural diagram of a switching circuit according to an embodiment of the present application

FIG. 5 is a schematic structural diagram of an embodiment of a testing apparatus according to the present disclosure;

FIG. 6 is a schematic structural diagram of an embodiment of a testing apparatus according to the present disclosure;

fig. 7 is a schematic diagram of a Gate operating timing sequence of a display panel provided in the present application;

fig. 8 is a voltage divider circuit provided in the present application;

fig. 9 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 10 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 11 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 12 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 13 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 14 is a schematic flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure;

fig. 15 is a schematic hardware structure diagram of a motherboard according to an embodiment of the present disclosure;

fig. 16 is a schematic hardware structure diagram of a testing apparatus according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and in the claims, and in the drawings, of the embodiments of the application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the related art, the purpose of reducing the cost is often achieved by integrating a counter Control Register (TCON) board on a television main board, i.e., a TCONLESS scheme, however, the problem caused thereby is that when the main board is not matched with the display panel in model, the display panel cannot be lighted, and further inconvenience is brought to factory debugging and after-sale maintenance.

To above problem, the testing arrangement that this application provided can make the mainboard also can be compatible be used for debugging and the display panel of maintenance when the display panel that uses in the product is sold in the matching.

The test device provided in the present application is illustrated by several specific examples.

The testing device in the scheme can be applied to any terminal equipment with a display screen, such as a mobile phone, a flat panel, a television, a personal computer, a notebook, a wearable device and the like, and can also be applied to industrial equipment, medical equipment and the like.

Fig. 1 is a schematic structural diagram of an embodiment of a testing apparatus provided in the embodiment of the present application, and as shown in fig. 1, the testing apparatus includes: mainboard 01 and display module assembly 02, mainboard 01 are connected with display module assembly 02, and this mainboard embeds has screen drive (TCON) circuit, can understand, and this mainboard passes through TCON circuit can realize the whole functions of TCON board.

In some embodiments, the mainboard 01 and the display module group 02 can be connected through two pairs of 60pin sockets, that is, two 60pin sockets are arranged at the output end of the mainboard 01, the input end of the display module group 02 is provided with two corresponding 60pin sockets, and the mainboard 01 is connected with the two 60pin sockets at the input end of the display module group 02 through the two 60pin sockets at the output end. It is worth mentioning that, the socket that mainboard 01 and display module 02 are connected is not limited to be 60 pins in this application, and sockets of different specifications can be set according to the demand.

In some embodiments, the display module may include a display panel, or may further include a functional circuit, a switching circuit, or other devices connected to the display panel.

The main board 01 is used for acquiring a control instruction and generating a screen-up signal and a screen control signal corresponding to the display module according to the control instruction, wherein the screen-up signal is a plurality of groups of differential signal pairs, the control instruction is generated by detecting user operation or detecting a preset file, and the screen control signal comprises GAMMA correction GAMMA voltage, a voltage control signal for supplying power to the display panel and a drive control voltage for driving the display panel to display. The main board 01 is further configured to drive the display module to display according to the screen display signal and/or the screen control signal, and correspondingly, the display module 02 is configured to display according to the screen display signal and/or the screen control signal.

In a possible implementation manner, the method for acquiring a control instruction provided by the present disclosure includes: in a system Boot (Boot) stage, the main board 01 detects user operation and a preset file to obtain a detection result, determines specification information of a display module to be controlled according to the detection result, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type, and generates a control instruction according to the specification information, and the control instruction comprises screen parameters to be set.

For example, it is detected whether a user issues a request instruction through a remote control, where the request instruction is used to request to enter a debugging or maintenance environment, and in some embodiments, the request instruction may be issued through a specific remote control or may be issued by pressing a specific key; for another example, whether a preset file exists is detected, where the preset file is used to indicate that a debugging or maintenance environment needs to be entered, or contents in the preset file are detected, and whether the debugging or maintenance environment needs to be entered is determined according to the contents.

In some embodiments, according to the detection result, if it is determined that a debugging or maintenance environment needs to be entered, it is determined that the display module to be controlled is a display module for debugging or maintaining the motherboard, for example, a display module conforming to a digital interface standard (VbyOne, VB 1); or, according to the detection result, if it is determined that the debugging or maintenance environment is not entered, the display module to be controlled is determined to be a display module used in normal production and sale (non-debugging or maintenance environment), for example, a display module conforming to the EPI/ISP/CEDS/USIT/CMPI protocol. And then, according to the difference of the display module group to be controlled, different control instructions are generated.

In some embodiments, the method of obtaining control instructions further comprises receiving control instructions sent by other devices.

For example, if the display module is a general VB1 display module used when debugging or maintaining a motherboard, the display signal is 8 VB1 differential signal pairs, and if the display module is a Point to Point (P2P) display module matched with the motherboard and used during normal production or sale, the display signal is 12P 2P signal pairs. It should be noted that the VB1 display module mentioned in this application is a display module that only receives the VB1 signal, and for convenience, those display modules that receive other signals are referred to as end-to-end display modules that are used in normal production or sale and are matched with the main board. Of course, the received signal format is not limited to P2P, and the schemer may define the transmission signal format according to his own requirements.

The testing device provided by the embodiment of the application comprises a mainboard 01 and a display module 02 connected with the mainboard 01, wherein a screen driving circuit is arranged in the mainboard 01, the mainboard 01 is used for acquiring a control instruction, and generates a screen-up signal and a screen control signal corresponding to the display module 02 according to the control instruction, wherein, the screen-up signal is a plurality of groups of differential signal pairs, the control instruction is generated by the mainboard by detecting user operation or detecting a preset file, the mainboard 01 is also used for driving the display module to display according to the screen-up signal and/or the screen control signal, according to the different display panels to be controlled, the corresponding control instructions are obtained, control over different display panels is achieved, a universal display module is particularly adopted when the main board is debugged or maintained, the practicability of the TCONLESS scheme is improved, and debugging and maintaining costs are saved.

On the basis of the embodiment shown in fig. 1, fig. 2 is a schematic structural diagram of the testing apparatus embodiment provided in the present application, the display module 02 includes a first display module 021, as shown in fig. 2, the first display module 021 includes a first display panel 0211, the first display panel 0211 is a general display panel generally used when debugging or maintaining the main board, for example, a VB1 display panel having a VB1 interface, and since the input terminal of the VB1 display panel is often provided with a 51pin socket and cannot be directly connected to the main board 01, the first display module 021 includes a switching circuit 0212 in addition to the first display panel 0211, and the first display panel 0211 is connected to the switching circuit 0212.

Based on the display module 02 being the first display module 021, the control command is a first control command for instructing the main board 01 to generate a signal corresponding to the first display panel 021, and the output terminal of the main board 01 is connected to the input terminal of the first display panel 0211 through the adapter circuit 0212.

The adapter circuit 0212 is used for providing a power supply voltage for the first display panel 0211; the main board 01 is configured to generate a first screen signal and a screen control signal according to the first control instruction, where the first screen signal is 8 groups of differential signal pairs conforming to the digital interface standard VB 1.

The main board 01 is further configured to send the first screen signal to the first display panel 0211 through the switching circuit 0212, and drive the first display panel 0211 to display.

In some embodiments, the motherboard 01 is debugged or repaired in conjunction with the content displayed by the first display panel 0211.

In some embodiments, the adapting circuit 0212 can be connected between the main board and the first display module independently of the first display module 021.

In some embodiments, with reference to fig. 3, a schematic structural diagram of an embodiment of a testing apparatus provided in the present application is shown, where the testing apparatus further includes: the control signal detection circuit 03.

The main board 01 is connected to the control signal detection circuit 03 through the adapter circuit 0212.

The switching circuit 0212 is configured to perform signal conversion on the screen control signal sent by the motherboard 01, and send the screen control signal to the control signal detection circuit 03.

The control signal detection circuit 03 is used for detecting whether the screen control signal is normal.

Based on the embodiments shown in fig. 2 and fig. 3, fig. 4a is a first structural schematic diagram of the transit circuit provided in the embodiment of the present application, and fig. 4b is a second structural schematic diagram of the transit circuit provided in the embodiment of the present application, and in combination with fig. 4a, the transit circuit 0212 includes: the screen controls the signal processing circuit 100.

The screen control signal processing circuit 100 includes: an analog-to-digital conversion sub-circuit 101, a micro control unit MCU sub-circuit 102 and a level conversion sub-circuit 103; the MCU sub-circuit 102 is respectively connected with the analog-to-digital conversion sub-circuit 101 and the level conversion sub-circuit 103;

the analog-to-digital conversion sub-circuit 101 is configured to convert the panel control signal from an analog signal to a digital signal, the MCU sub-circuit 102 is configured to obtain the digital signal from the analog-to-digital conversion sub-circuit 101 and send the digital signal to the level conversion sub-circuit 103, and the level conversion sub-circuit 103 is configured to boost the digital signal.

Illustratively, the digital signal converted by the analog-to-digital conversion sub-circuit 101 is a transistor-transistor logic (TTL) level signal, and the level conversion sub-circuit 103 boosts the TTL level signal and converts the TTL level signal into a level signal conforming to the RS232 standard.

As shown in fig. 4a and 4b, the transit circuit 0212 further includes: an input socket 104, an output socket 105 and a power supply circuit 1.

The switching circuit 0212 is connected with an output socket of the mainboard 01 through the input socket 104, and receives a first screen-up signal and a screen control signal sent by the mainboard 01; the adapter circuit 0212 is connected with an input socket XP3 of the first display panel 021 through an output socket 105; in some embodiments, the output socket of motherboard 01 includes two 60pin sockets, XP11 and XP12, respectively.

The through circuit 0212 transmits the first upper screen signal to the upper screen signal input pin (for example, VB1_0N VB1_7N, VB1_0P VB1_ 7P) of the input socket XP3 of the first display panel 021 through the upper screen signal output pin (for example, VB1_0N VB1_7N, VB1_0P VB1_ 7P) in the output socket.

The power supply circuit 1 is connected to the power pin VCC _ Panel of the input socket XP3 of the first display Panel 021 through the power pin VCC _ Panel of the output socket, and provides a power supply voltage for the first display Panel 021.

In some embodiments, the input socket of the transit circuit 0212 is two 60pin sockets and the output socket of the transit circuit 0212 is one 51pin socket.

In this embodiment, when needing to debug mainboard 01, the display module assembly 02 of being connected with mainboard 01 is first display module assembly 021, mainboard 01 is according to first control instruction, go up screen signal and drive signal to first display module assembly 021 output correspondence, drive first display module assembly 021 and show, through combining the content that first display module assembly 021 shows, realize debugging or the maintenance to mainboard 01, and need not debug or maintain every mainboard matching respective display module assembly, the cost is saved, the practicality of TCONLESS scheme has been increased.

In some embodiments, the transit circuit 0212 further includes: a control signal output terminal XP 5; the control signal output end XP5 is connected with the input end of the control signal detection circuit 03;

the through circuit 0212 sends the screen control signal to the control signal detection circuit 03 through the control signal output terminal XP 5. The panel control signal is a panel control signal processed by the panel control signal processing circuit 100, and the panel control signal includes a voltage control signal, such as a VCOM voltage, a VGH voltage, a VGL voltage, a VDDA voltage, and a GAMMA voltage (VG 1, VG7, VG8, and VG 14) output by a GAMMA circuit of the main board; the display panel also comprises driving control signals such as driving control signals (HC 1-HC 8, ST1, LC1, LC2 and VSS _ XON) output by a level conversion circuit of the main board.

In this embodiment, the mainboard 01 sends the screen control signal to the control signal detection circuit 03 through the control signal output XP5 of the through circuit 0212, has realized the detection to the screen control signal, and is normal through detecting whether the screen control signal is normal, debugs or maintains the mainboard 01.

On the basis of the above embodiments, fig. 4c is a third schematic structural diagram of the transit circuit provided in the embodiment of the present application, and as shown in fig. 4c, the transit circuit 0212 further includes: a line sequence collating circuit 200;

the line sequence arranging circuit 200 is connected between the mainboard 01 and the screen control signal processing circuit 100 and comprises a plurality of input sockets 201 and two output sockets 202;

the line sequence collating circuit is used for matching the line sequence of the output end of the main board 01 with the line sequence of the input end of the screen control signal processing circuit 100.

The output terminals of the motherboard 01 are connected to a corresponding pair of sockets in the line sequence adjusting circuit 200, for example, the input socket 1 and the input socket 2 shown by solid arrows in the figure, or the input socket 3 and the input socket 4 shown by dotted arrows in the figure, according to the line sequence or interface package of the motherboard 01.

In this embodiment, the adapting circuit 0212 further includes a line sequence sorting circuit 200, and according to the line sequence and the interface package of the motherboard 01, a corresponding pair of input sockets in the line sequence sorting circuit 200 is selected, so that the motherboard 01 is connected with the corresponding pair of input sockets in the line sequence sorting circuit 200, and the screen-up signal and the screen control signal output by the motherboard 01 are received, and the received screen-up signal and the screen control signal are output to the screen control signal processing circuit 100 by the two output sockets 202 of the line sequence sorting circuit 200, so that compatibility with motherboards packaged by various different line sequences or different interfaces is realized, and the problem of cost increase caused by matching a plurality of screen control signal processing circuits 100 with various motherboards is avoided.

Based on the embodiment shown in fig. 1, fig. 5 is a schematic structural diagram of an embodiment of the testing apparatus provided in the embodiment of the present application, the display module 02 includes a second display module 022, as shown in fig. 5, the second display module 022 includes a second display panel 0221, the second display panel 0221 is a display panel generally used in production or sale of a product and matching with the motherboard 01, but not a general display panel used in debugging or maintenance, such as a P2P display panel, which has a P2P signal interface and conforms to the EPI/ISP/CEDS/USIT/CMPI protocol.

Based on the display module 02 being the second display module 022, the control instruction is a second control instruction for instructing the motherboard 01 to generate a signal for applying the second display panel 0221, and then the output terminal of the motherboard 01 is connected to the input terminal of the second display panel 0221.

The main board 01 is used for generating a second screen-up signal and a screen control signal according to a second control instruction; the second screen-up signal is a plurality of groups of P2P signal pairs.

The main board 01 is further configured to send the second upper screen signal and the screen control signal to the second display panel 022, and drive the second display panel 022 to display.

On the basis of the embodiments shown in fig. 1 to 5, fig. 6 is a schematic structural diagram of an embodiment of a testing apparatus provided in the present application, and as shown in fig. 6, a main board 01 includes: a main chip 011, a power management PMU circuit 012, a GAMMA correction GAMMA circuit 013, a level shifter circuit 014, and an output jack 015.

In some embodiments, the main Chip 011 is an integrated Chip of a System On Chip (SOC) and a TCON Chip, or a combined Chip of the SOC and the TCON Chip, or an SOC integrated with the functions of the TCON Chip.

A power supply control pin VCC _ Panel _ ctrol of the main chip 011 is connected with a power supply pin VCC _ Panel of the PMU circuit 012, and provides a power supply voltage to the PMU circuit 012; the main chip 011 communicates with the PMU circuitry 012 and the GAMMA circuitry 013 by connecting to bus pins (e.g., I2C _ SDA, I2C _ SCL) of the PMU circuitry 012 and GAMMA circuitry 013 via bus pins (e.g., I2C _ SDA, I2C _ SCL); the main chip 011 is connected with input pins (e.g., Panel _ LC, Panel _ YDIO, Panel _ TER, Panel _ Yclk) of the level shift circuit 014 through drive control pins (e.g., Panel _ LC, Panel _ YDIO, Panel _ TER, Panel _ Yclk), and transmits a drive control signal to the level shift circuit 014; PMU circuit 012 (e.g., VDDA and VDDD pins) is connected to gama circuit 013 (e.g., VDDA and VDDD pins); the output socket 015 is connected to the on-screen signal output pins (e.g., P2P _ 0N-P2P 11N, P2P _ 0P-P2P _ 11P) of the main chip 011, and to the output pins of the PMU circuit 012, the GAMMA circuit 013, and the level shift circuit 014.

In some embodiments, the outlet receptacle 015 comprises two 60pin receptacles XP1 and XP 2.

The main chip 011 is used for generating a screen-up signal and a screen control signal according to the control instruction.

The PMU circuit 012 is configured to output a voltage control signal, which may power the display panel, according to a control signal, which includes, for example, a VCOM voltage signal, a VGH voltage signal, a VGL voltage signal, a VDDA and VDDD voltage signals, and the like.

The GAMMA circuit 013 is used for generating GAMMA voltage signals according to control signals, such as VDDA and VDDD voltage signals, and outputting GAMMA voltage signals, such as VG1, VG7, VG8 and VG 14.

The Levelshift circuit 014 is configured to level-convert control signals, such as Panel _ LC, Panel _ YDIO, Panel _ TER, Panel _ Yclk, CPV1, CPV2, and the like, transmitted from the main chip 011, and output the converted driving control signals, such as HC1 to HC8, ST1, LC1, LC2, and VSS _ XON.

In a specific implementation manner, the main board 01 generates a driving control voltage corresponding to the display module according to the acquired control instruction, where the driving control voltage may be a timing control signal. Referring to fig. 7, for the schematic diagram of the Gate operating timing of the display panel provided by the present application, for example, the main chip 011 generates control signals, such as a CPV1 signal and a CPV2 signal, the CPV1 signal and the CPV2 signal are input terminals of a panel-end level shift circuit, which jointly determine a timing control CLK (CLK 1-CLK 6) signal, a falling edge of the CPV1 serves as a start of CKL1, a rising edge of the CPV2 serves as an end of the CLK1, and so on until all 2160 lines are scanned, and the level shift circuit generates and outputs a timing control signal (CLK 1-CLK 6) according to the CPV1 signal, the CPV2 signal and a preset STV (for controlling the Gate operating timing, active low level and reset level of each frame panel), as shown in fig. 7, the CLK1-CLK6 is 2160 lines Gate operating timing, and the output level of the level of vgshift is VGH and level of negative Voltage (VGL).

In some embodiments, before the switching circuit 0212 receives the screen control signal sent by the main board 01, each path of signal needs to be divided, this scheme provides a sampling circuit, which includes a plurality of voltage division circuits provided in the present application as shown in fig. 8, and the sampling circuit is disposed in the switching circuit 0212 and connected to each signal input terminal of the switching circuit, so as to adjust the screen control signal output by the main board 01 to the input voltage range of the analog-to-digital conversion sub-circuit. The voltage dividing circuit includes: a resistor R1, a resistor R2 and a resistor R3; one end of the resistor R2 is grounded, the other end of the resistor R2 is connected with one end of the resistor R1 and one end of the resistor R3 respectively, the other end of the resistor R1 is connected to a corresponding signal pin in the adapter circuit input socket, the other end of the resistor R3 is connected to the analog-to-digital conversion circuit 201, and different resistors are arranged according to different signals.

Taking the voltage control signal VDDA as an example, the signal is supplied to the display panel through a Chip On Flex (or, Chip On Film, COF), the voltage range of the signal is within a range of 14-18V depending On different panels, and the input voltage range of the analog-to-digital conversion circuit is within 10V, so that the requirement is satisfied by connecting a voltage division circuit, in some embodiments, R1=10k ohm, R2=10k ohm, and R3=47k ohm; for another example, the tested CLK1 signal is output as VGL, i.e., -5.5V, and the voltage divider circuit shown in fig. 8 is still used, in some embodiments, R1, R2, and R3 are all 100K ohms, and CLK1 is adjusted to meet the input voltage range of the analog-to-digital conversion circuit. This scheme is through setting up different divider resistance to the different input signal of mainboard 01, the sampling circuit design of the positive and negative voltage of compatible each panel.

Illustratively, the Analog-to-Digital Converter (ADC) chip used by the Analog-to-Digital Converter circuit in the present embodiment is ADS8688DBT, supports 8-way signal input, has 16-bit ADC processing capability with SPI communication, has input voltages of ± 10V, ± 5V, ± 2.5V, 0 to 10V and 0 to 5V, and has an operating voltage of 5V. In some embodiments, the number of ADS8688DBT chips is 5. When the chip works, the collected positive and negative voltages can be input into the ADS8688DBT through the input interface in the form of differential signals, namely, one voltage signal is a reference level signal.

Fig. 9 is a schematic flow chart of an embodiment of a control method for a display panel provided in this embodiment of the present application, and as shown in fig. 9, the method includes:

s101: and acquiring a control instruction.

In this step, the software system installed in the display panel control apparatus acquires a control instruction for instructing generation of a display module corresponding to the display module to be driven, which may be generated by itself or transmitted from an external device.

In a specific implementation manner, obtaining the control instruction includes specific steps as shown in fig. 10, and fig. 10 is a flowchart illustrating an embodiment of a control method for a display panel according to an embodiment of the present disclosure.

S1011: in the starting process, the main board detects the specification information of the display module to be controlled.

The specification information includes at least one of a data format, a control signal, an interface type, and a protocol type.

The specification information of the display module to be controlled is detected, and the method at least comprises the following two modes:

the first method is as follows: detecting whether a first operation input by a user is received in a starting process; if so, determining the specification information as the specification information corresponding to the first display module; otherwise, determining the specification information as the specification information corresponding to the second display module. The first operation can be a pressing operation of a remote control key, for example, continuously pressing an on-off key twice, pressing a volume key for a long time, simultaneously pressing an on-off key and a menu key, and the like, wherein an instruction triggered by the first operation is used for requesting to enter a debugging or maintenance environment, and in a Boot starting stage, specifically, in a Boot stage, when the first operation input by a user is detected, the specification information of the display module is determined to correspond to the specification information of the first display module; and if the first operation of the user is not detected, determining that the specification information of the display module corresponds to the second display module.

The second method comprises the following steps: detecting whether a mobile storage medium connected with a test device exists; if so, the mainboard reads the preset file and determines the specification information of the display module to be controlled according to the preset file; otherwise, determining the specification information as the specification information corresponding to the second display module; the method comprises the steps that a preset file is stored in a mobile storage medium, the mobile storage medium comprises a U disk, a floppy disk, a mobile hard disk, an optical disk, a memory card and the like, the preset file can be a file in a format of his stored in the mobile storage medium, the content of the preset file comprises specification information of a display module to be controlled, and if the preset file in the mobile storage medium is detected in a starting-up stage, specifically a Boot stage, the specification information of the display module to be controlled is determined according to the content in a threshold value file; if the mobile storage medium is not detected to be connected, or the preset file is not detected, or the content in the preset file cannot provide related information, the main board defaults the display module to be controlled to be the second display module, and determines that the specification information of the display module to be controlled is the specification information of the second display module.

Wherein, the first display module is VB display module, and the second display module is P2P display module.

In some embodiments, the specification information includes at least data format, control signal, interface type, protocol type, and the like.

In some embodiments, the specification information of the display module in this step may be specification information of a display panel in the display module.

S1012: and generating a control command according to the specification information.

In this step, a control instruction corresponding to the display module is generated according to the specification information of the display module to be controlled, and in some embodiments, the control instruction may specifically be a control instruction corresponding to a display panel in the display module, where the control instruction includes a screen parameter to be set.

S102: and generating a screen-on signal and a screen control signal corresponding to the display module according to the control instruction.

In this step, the control instruction is used to instruct to generate the screen-up signal and the screen control signal of the display module, and for the difference of the display module, in some embodiments, the control instruction may specifically be different of the display panel, and the control instruction may instruct to generate different screen-up signals, and the screen control signals may be the same or different. For example, the generated upper screen signals are 8 groups of VB1 differential signal pairs for the VB1 display module, and 12 groups of P2P differential signal pairs for the P2P display module.

In a specific implementation manner, the step includes the specific steps shown in fig. 11, and fig. 11 is a flowchart illustrating an embodiment of a control method for a display panel according to the embodiment of the present disclosure.

S1021: and in the Boot stage, setting an environment variable corresponding to the screen parameter to be set according to the control instruction.

In this step, according to the screen parameter to be set in the control command, the environment variable is set to the environment variable corresponding to the screen parameter, for example, the screen parameter to be set is the VB1 screen parameter, and then the environment variable is set to the VB1 environment variable.

In a possible implementation manner, before setting the environment variable, it is determined whether the screen parameter set at the last startup is consistent with the screen parameter to be set, or whether the environment variable set at the last startup is consistent with the environment variable corresponding to the screen parameter to be set, if so, the environment variable does not need to be set, execution is skipped to the next step, and if not, the process of setting the environment variable corresponding to the screen parameter to be set in the step is executed.

S1022: and in the system starting stage, setting screen parameters corresponding to the environment variables by detecting the currently set environment variables.

In a system starting stage, detecting a currently set environment variable, and setting a corresponding screen parameter according to the currently set environment variable, for example, if the current environment variable is a VB1 environment variable, setting the screen parameter to be a VB1 screen parameter.

S1023: and generating a screen-up signal and a screen control signal corresponding to the display module according to the screen parameters.

The screen control signals generated aiming at different display modules can be the same, and the screen-up signals generated aiming at different display modules are generally different.

S103: and driving the display module to display according to the screen-on signal and/or the screen control signal.

The on-screen signals are a plurality of groups of differential signal pairs, such as 8 groups of VB1 differential signal pairs or 12 groups of P2P signal pairs.

The embodiment of the application provides a control method of display panel, according to the difference of the display panel or the display module group that treats control, generate different control command, and accomplish the setting of environmental variable according to control command, and output screen parameter, and then obtain the last screen signal and the screen control signal that correspond with the display panel or the display module group that treat control, show with different display panel of drive or display module group, the compatibility of mainboard has been improved, when debugging or maintaining the mainboard, can adopt general display module group or display panel of drive, the realization is to the debugging or the maintenance on duty.

This scheme is after mainboard drive display module assembly shows, can combine display module assembly's demonstration content, and whether the last screen signal that detects mainboard or mainboard generation is normal. Exemplarily, whether the content displayed by the display module meets a preset display standard is determined; if so, the screen-up signal generated by the mainboard is normal; otherwise, the screen-up signal generated by the mainboard is abnormal. The preset display standard can be set according to any standard for measuring display effect in the field, and can also be a reference sample of expected display content.

On the basis of the embodiments shown in fig. 9 to 11, fig. 12 is a schematic flowchart of an embodiment of a control method of a display panel provided in the present application, and as shown in fig. 12, when a display module is a first display module, and the first display module includes a first display panel and a switching circuit connected to the first display panel, if a control instruction is the first control instruction, a screen-up signal and a screen control signal corresponding to the display module are generated according to the control instruction, including:

s201: and generating a first screen-up signal and a screen control signal according to the first control instruction.

The first upper screen signal is 8 groups of differential signal pairs conforming to the digital interface standard VbyOne, the first display panel is generally a general display panel used for debugging or maintaining the main board, for example, a VB1 display panel having a VB1 interface, and the first control instruction is used for instructing generation of a signal corresponding to the first display panel.

S202: and sending the first screen-up signal to a first display panel through a switching circuit of the first display module, and driving the first display panel to display.

In this embodiment, when the control command is the first control command, generate first upper screen signal and screen control signal corresponding to first display panel, first display panel is general VB1 display panel that uses when debugging or maintaining the mainboard usually, consequently, adopts general display panel to debug or maintain the mainboard, has practiced thrift the cost for debugging and maintenance, and has improved the practicality of TCONLESS scheme.

In some embodiments, the method further comprises: the switching circuit carries out signal conversion to the screen control signal, sends the screen control signal to the control signal detection circuit again and detects, and whether normal through detecting the screen control signal, carries out further debugging or maintenance to the mainboard.

Illustratively, the signal conversion of the screen control signal includes: converting the screen control signal from an analog signal to a digital signal; and boosting the digital signal to obtain a processed screen control signal.

The control signal detection circuit detects the screen control signal after processing, and comprises: the control signal detection circuit determines whether each screen control signal is in a corresponding standard range of voltage according to the received screen control signal and the preset standard range of each voltage; if so, determining that the screen control signal generated by the mainboard is normal; and if at least one screen control signal is not in the standard range of the corresponding voltage, determining that the screen control signal generated by the mainboard is abnormal.

On the basis of the embodiments shown in fig. 9 to 11, fig. 13 is a schematic flowchart of a control method embodiment of the display panel provided in the embodiment of the present application, and as shown in fig. 13, when the display module is a second display module, and the second display module includes a second display panel, if the control instruction is a second control instruction, the generating a screen-up signal and a screen control signal corresponding to the display module according to the control instruction includes:

s301: and the main board generates a second screen-up signal and a screen control signal according to the second control instruction.

The second screen signal is a plurality of groups of P2P signal pairs; the second display panel has a plurality of sets of P2P signal interfaces.

S302: and the main board sends the second screen-up signal and/or the screen control signal to the second display panel to drive the second display panel to display.

On the basis of the foregoing embodiments, taking VB1 display panel and P2P display panel as an example, how the method switches and drives different display panels is described below through a specific implementation manner, where fig. 14 is a schematic flow chart of an embodiment of a control method for a display panel provided in an embodiment of the present application, and as shown in fig. 14, the method includes:

s11: boot is started.

S12: user actions or profiles are detected.

In some embodiments, the user operation or the profile may be detected after entering the specific mode, and the detection is not performed when the specific mode is not entered, but the step S14 is directly entered to avoid the user misoperation and the consumption of system power consumption.

Determining that a debugging or maintenance mode needs to be entered according to the detected user operation or configuration file, or determining that a display panel to be controlled is a VB1 display panel, and entering step S13; determining that the debugging or maintenance mode is not required to be entered or determining that the display panel to be controlled is the P2P display panel according to the detected user operation or configuration file, then entering step S14

S13: the VB1 screen parameter output is set and the process proceeds to step S15.

S14: the P2P screen parameter output is set, and the process advances to step S16.

S15: it is detected whether the last power-on is in the VB1 environment.

If yes, go directly to step S19: starting a system; if not, the flow proceeds to step S17: set VB1 environment variable, and proceed to step S19: and starting the system.

S16: it is checked whether the last power-on is in the P2P environment.

If so, proceed directly to S19: starting a system; if not, the flow proceeds to step S18: setting the P2P environment variable, and proceeding to step S19: and starting the system.

S20: the environment variables are checked.

If the environment variable is VB1, the process proceeds to step S21: setting VB1 screen parameters; if the environment variable is P2P, the process proceeds to step S22: the P2P screen parameter is set.

S23: the handover is completed.

Fig. 15 is a schematic diagram of a hardware structure of a motherboard according to an embodiment of the present disclosure. As shown in fig. 11, the main board 200 includes:

a processor 201, a memory 202 and a computer program;

in some embodiments, the processor 201 is embodied as a master chip in the present solution, and the memory 202 is embodied as a Double Data Rate (DDR) and/or an Embedded Multi Media Card (EMMC).

The computer program is stored in the memory 202, and the processor 201 executes the computer program to implement the control method of the display panel described in any method embodiment.

Fig. 15 is a simple design of a motherboard, the number of processors and memories in the motherboard is not limited in the embodiment of the present application, and fig. 15 only illustrates that the number is 1.

In some embodiments, the memory 202 may be separate or integrated with the processor 201.

When the memory 202 is provided separately, the motherboard further comprises a bus 203 for connecting the memory 202 and the processor 201.

An embodiment of the present application further provides a testing apparatus, referring to fig. 16, including:

a test box configured to detect the screen control signal.

In some embodiments, the controller is configured to: detecting specification information of a display panel to be controlled in a starting process, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type; generating the control instruction according to the specification information, wherein the control instruction comprises screen parameters to be set, and the control instruction specifically comprises the screen parameters to be set

In some embodiments, the drive device is configured to:

For example: the control instruction generation mode can be as follows: in a system Boot (Boot) stage, a controller detects user operation and a preset file to obtain a detection result, and determines specification information of a display panel according to the detection result, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type, and then generates a control instruction according to the specification information, and the control instruction comprises relevant parameters of the display panel to be set.

For example, it is detected whether a user issues a request instruction through a remote control, where the request instruction is used to request to enter a debugging or maintenance environment, and the request instruction may be issued through a specific remote control or may be issued by pressing a specific key; for another example, whether a preset file exists is detected, where the preset file is used to indicate that a debugging or maintenance environment needs to be entered, or contents in the preset file are detected, and whether the debugging or maintenance environment needs to be entered is determined according to the contents, where the preset file may be set in an external storage device, such as a usb disk.

Specific reference may be made to the foregoing embodiments and will not be made to them.

In some embodiments, the driving device generates the on-screen signals as a plurality of differential signal pairs, such as 8 VB1 differential signal pairs mentioned above, or 12P 2P differential signal pairs mentioned above. The specific description of the on-screen signal can refer to the previous embodiments.

In some embodiments, the switching device may be any one of the switching circuits mentioned above, and reference may be made to the above for specific description. The signal required by the display panel is extracted from the signal input by the driving device through the switching device in order to match the signal input required by the display panel, namely, the second upper screen signal, and the second upper screen signal can drive the display panel to normally display; in addition, the panel control signals are extracted from the signals input from the driving device, and the signals are input to the test box for testing.

In some embodiments, the display panel includes a VbyOne interface, and the second upper screen signal matches the VbyOne interface and drives the display panel to display. Reference may be made to the foregoing description of embodiments.

In some embodiments, the display panel comprises a P2P signal interface, and the second top screen signal matches the P2P signal interface and drives the display panel to display. Reference may be made to the foregoing description of embodiments.

the level conversion sub-circuit is used for boosting the digital signal.

In some embodiments, the adapter further comprises: the line sequence arrangement circuit is used for adjusting the line sequence of the first screen-up signal output by the driving device to obtain a second screen-up signal matched with the display panel; specific implementations may be described with reference to the above embodiments.

In some embodiments, the screen control signals include a GAMMA correction GAMMA voltage, a voltage control signal for supplying power to the display panel, and a driving control voltage for driving the display panel to display.

In some embodiments, the input socket of the patching device is two 60pin sockets, and the output socket of the patching circuit is a 51pin socket.

if so, determining that the screen control signal is normal;

In some embodiments, the test box may be a computer, that is, the computer is connected to the switching device through a data line, collects the screen control signals, and judges whether the signals are within respective standard ranges; in some embodiments, the test cartridge may also be a DSP device designed based on requirements, which is not limited in this application.

Through the design, under the condition that different display panels can be accessed, the second screen-up signal corresponding to the accessed display panel can be generated through the switching device, so that the display panel is lightened. Therefore, the testing process can be realized by taking any one display panel, and a matched display panel does not need to be found.

An embodiment of the present application further provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the method for controlling a display panel is implemented as described above.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A test apparatus, comprising:

a test box configured to detect the screen control signal.

2. The test device of claim 1, wherein the display panel comprises a VbyOne interface, and wherein the second upper screen signal matches the VbyOne interface and drives the display panel to display.

3. The testing device as claimed in claim 1, wherein the display panel comprises a P2P signal interface, and the second top screen signal matches the P2P signal interface and drives the display panel to display.

4. The testing device of claim 1, wherein the transition device further comprises: the circuit comprises an analog-digital conversion sub-circuit, a Micro Control Unit (MCU) sub-circuit and a level conversion sub-circuit;

the level conversion sub-circuit is used for boosting the digital signal.

5. The testing device of claim 1, wherein the transition device further comprises: and the line sequence arranging circuit is used for adjusting the line sequence of the first screen-up signal output by the driving device to obtain a second screen-up signal matched with the display panel.

6. The test device as claimed in claim 1, wherein the screen control signal comprises a GAMMA correction GAMMA voltage, a voltage control signal for supplying power to the display panel, and a driving control voltage for driving a display of the display panel.

7. The test device of claim 1, wherein the input socket of the interface device is two 60pin sockets and the output socket of the interface circuit is a 51pin socket.

8. The testing device of claim 1, wherein the testing box is further configured to determine whether each screen control signal is within a standard range of a corresponding voltage according to the received screen control signal and a preset standard range of each voltage;

if so, determining that the screen control signal is normal;

9. The testing device of claim 1, wherein the controller is configured to: detecting specification information of a display panel to be controlled in a starting process, wherein the specification information comprises at least one of a data format, a control signal, an interface type and a protocol type;

10. The testing device of claim 9, wherein the drive device is configured to: