Anti-burn jig, method and organic electroluminescent device

Abstract

The invention provides an anti-burn jig, an anti-burn method and organic electroluminescence equipment. The anti-burn jig is used for the organic electroluminescence device and comprises a relay module, and a control sub-circuit of the relay module is electrically connected with a function execution module of the organic electroluminescence device. The relay module is configured to cut off the first electric connection relation to prevent the function execution module from being burnt under the condition that preset signal changes fed back by the function execution module are received, and the first electric connection relation is the electric connection relation between the graph generation module of the equipment and the function execution module of the equipment. According to the anti-burn jig, the relay is connected between the power supply and the functional element of the OLED, the on-off of the circuit is controlled based on the circuit signal fed back by the functional element of the OLED, adverse consequences such as element burn are avoided, and meanwhile, on the premise that the switching power sequence is not influenced, the anti-burn jig can be used for controlling the on-off of the circuit. And when the hot plug condition occurs, the graph generation module is isolated from the function execution module.

Description

Technical Field

[0001] This application relates to the field of organic electroluminescence control technology, specifically to an anti-burn jig, an anti-burn method, and an organic electroluminescence device. Background Technology

[0002] The application of Organic Light Emitting Diode (OLED) technology is becoming increasingly mature. In related technologies, the lighting of OLED devices requires hardware such as a Pattern Generator (PG) and fixtures, supplemented by software. The lighting process is a prerequisite for the actual operation of the display screen and for testing processes such as electrical checks. However, during operation or testing, occasional abnormalities such as hot-plugging can occur, leading to short circuits and overcurrents in the light-emitting panel and the corresponding control chip, ultimately causing damage.

[0003] To minimize the potentially disastrous consequences of hot-plugging, related technologies typically employ software overcurrent detection or external hardware logic to determine the pressure head position, thus promptly disconnecting the internal current of the device during hot-plugging to prevent serious damage. However, these methods suffer from poor applicability and even failure with the rapidly evolving OLED devices, posing significant risks. Summary of the Invention

[0004] This application provides a burn prevention jig, a burn prevention method, and an organic electroluminescent device.

[0005] The burn prevention jig disclosed in this application is used in an organic electroluminescent device. The jig includes a relay module, and the control sub-circuit of the relay module is electrically connected to the function execution module of the organic electroluminescent device.

[0006] The relay module is configured to disconnect the first electrical connection when it receives a preset signal change from the function execution module, in order to prevent the function execution module from being burned. The first electrical connection is the electrical connection between the graphics generation module of the device and the function execution module of the device.

[0007] In some embodiments, the first electrical connection includes a working voltage branch and a reference analog branch. The working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module, and the reference analog branch is connected between the power supply submodule and the control chip assembly of the function execution module.

[0008] The relay module includes an execution sub-circuit, which is connected to the operating voltage branch and the reference analog branch.

[0009] In some embodiments, the relay module includes a control sub-circuit electrically connected to a control chip assembly in the function execution module, wherein the preset signal change is configured as an operating voltage enable signal fed back from the control chip assembly to the control sub-circuit.

[0010] In some implementations, the relay module is an electromagnetic relay.

[0011] Therefore, this application proposes a fixture for OLED devices equipped with a relay. By connecting the relay between the power supply and the functional elements of the OLED, the circuit on / off is controlled based on the circuit signals fed back from the functional elements of the OLED. This allows for circuit cutoff and timely interruption of heating in case of abnormal situations such as hot-plugging of the OLED device, preventing adverse consequences such as element burn-in. The fixture can isolate the graphics generation module from the function execution module during hot-plugging without affecting the power-on / off timing, reducing the impact on the normal operation of the OLED product.

[0012] The burn prevention method in this application is used in the relay module of the aforementioned burn prevention fixture, and the method includes:

[0013] When the organic electroluminescent device is in operation, in response to a change in a preset signal received from the function execution module, the first electrical connection is cut off to prevent the function execution module from being burned. The first electrical connection is the electrical connection between the pattern generation module of the device and the function execution module of the device.

[0014] In some embodiments, the step of cutting off the first electrical connection in response to a change in a preset signal received from the function execution module while the organic electroluminescent device is operating includes:

[0015] When the device is in operation, in response to the change in the operating voltage enable signal received by the control sub-circuit of the relay module from the control chip component of the function execution module, the first electrical connection is disconnected.

[0016] In some embodiments, the step of disconnecting the first electrical connection in response to a change in the operating voltage enable signal received from the control chip component of the function execution module while the device is operating includes:

[0017] When the device is in operation, in response to the control sub-circuit receiving a change in the operating voltage enable signal, the execution sub-circuit of the relay module is controlled to change its state to disconnect the first electrical connection relationship. The first electrical connection relationship includes an operating voltage branch and a reference analog branch. The operating voltage branch is connected between the power supply sub-module of the graphics generation module and the light-emitting panel assembly of the function execution module. The reference analog branch is connected between the power supply sub-module and the control chip assembly of the function execution module. The execution sub-circuit is connected to the operating voltage branch and the reference analog branch.

[0018] In some embodiments, the step of controlling the execution subcircuit of the relay module to change its state in response to the control subcircuit receiving a change in the operating voltage enable signal while the device is operating includes:

[0019] When the device is in operation, in response to the control subcircuit receiving a change in the operating voltage enable signal, the control subcircuit is controlled to generate a control electrical signal;

[0020] In response to the control electrical signal, the execution sub-circuit is controlled to switch from a closed state to an open state to disconnect the first electrical connection.

[0021] The organic electroluminescent device in this application includes the aforementioned anti-burn jig, which can realize the aforementioned anti-burn method.

[0022] In some embodiments, the device further includes a graphics generation module and a function execution module, wherein a working voltage branch and a reference analog branch are connected between the graphics generation module and the function execution module, wherein the working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module, and the reference analog branch is connected between the power supply submodule and the control chip assembly of the function execution module.

[0023] Additional aspects and advantages of embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of embodiments of this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a schematic diagram of the modular structure of the organic electroluminescent device and the anti-burn treatment device in the embodiments of this application;

[0026] Figure 2This is a flowchart illustrating the method for preventing burns in the embodiments of this application;

[0027] Figure 3 This is a flowchart illustrating the method for preventing burns in the embodiments of this application;

[0028] Figure 4 This is a flowchart illustrating the method for preventing burns in the embodiments of this application;

[0029] Figure 5 This is a flowchart illustrating the method for preventing burns in the embodiments of this application. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0031] Please see Figure 1 The burn-prevention jig JIG in this application embodiment is used for an organic electroluminescent device. The jig JIG includes a relay module, and the control sub-circuit of the relay module is electrically connected to the function execution module of the organic electroluminescent device.

[0032] The relay module is configured to disconnect the first electrical connection when it receives a preset signal change from the function execution module to prevent the function execution module from being burned. The first electrical connection is the electrical connection between the device's graphics generation module PG and the device's function execution module.

[0033] In some implementations, the first electrical connection includes a working voltage branch and a reference analog branch. The working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module, and the reference analog branch is connected between the power supply submodule and the control chip assembly IC of the function execution module.

[0034] The relay module includes an execution sub-circuit, which is connected to the operating voltage branch and the reference analog branch.

[0035] In some implementations, the relay module includes a control sub-circuit electrically connected to a control chip component IC in the function execution module, and a preset signal change is configured as an operating voltage enable signal fed back from the control chip component IC to the control sub-circuit.

[0036] In some implementations, the relay module is an electromagnetic relay.

[0037] Furthermore, the organic electroluminescent device in the embodiments of this application includes the aforementioned burn-prevention jig.

[0038] In some embodiments, the organic electroluminescent device further includes a pattern generating module (PG) and a function execution module. A working voltage branch and a reference analog branch are connected between the pattern generating module (PG) and the function execution module. The working voltage branch is connected between the power supply submodule of the pattern generating module and the light-emitting panel assembly (Panel) of the function execution module, and the reference analog branch is connected between the power supply submodule and the control chip assembly (IC) of the function execution module.

[0039] Specifically, please refer to Figure 1 , Figure 1 This diagram illustrates the internal circuit connections of an organic electroluminescent device (hereinafter referred to as an OLED device) equipped with the burn-proof jig (JIG) described in this application. The OLED device is generally divided into three parts: a pattern generator module (PG), the aforementioned burn-proof jig (JIG), and a function execution module. The pattern generator module (PG) is a control device used to light up the OLED device and enable it to display. Simultaneously, the power supply submodule within the pattern generator module (PG) is responsible for supplying power to the function execution module of the OLED device. The burn-proof jig (JIG) is primarily used to hold the function execution module. The function execution module is the module that performs the lighting and display functions. It generally includes a control chip component (IC) and a light-emitting panel component (Panel). The control chip component (IC) stores a computer program that controls the light emission, while the light-emitting panel component (Panel) is the actual device that performs the light emission. When the function execution module performs the lighting and display functions, the light-emitting panel component (Panel) is controlled by the control chip component (IC) and powered by the power supply submodule within the pattern generator module (PG) to perform the light emission. For an example of how the light emission function can be achieved, please refer to [link to example diagram]. Figure 1 The power supply submodule in the graphics generation module PG has a power supply connection (corresponding to the first electrical connection relationship) with the light-emitting panel assembly in the function execution module. This power supply connection includes a working voltage branch and a reference analog branch. The working voltage branch includes a positive voltage branch (corresponding to...). Figure 1 Branch ① in the diagram) and the negative voltage branch (corresponding to...) Figure 1 Branch ② in the diagram, the positive voltage branch corresponds to the ELVDD positive working voltage signal, the negative voltage branch corresponds to the ELVSS negative working voltage signal, and the reference analog branch (corresponding to...) Figure 1 (Branch ③ in the diagram), the reference analog branch corresponds to the AVDD reference analog signal.

[0040] To enable rapid disconnection of circuit connections during hot-plugging within the OLED device and prevent component burns by preventing rapid heat accumulation, the anti-burn jig in this embodiment of the application is additionally equipped with a set of relay modules. These relay modules generally include an execution sub-circuit and a control sub-circuit. The execution sub-circuit is controlled by the control sub-circuit to change its own state, thereby controlling the on / off state of the circuit it is connected to. For example, in the above embodiment, the execution sub-circuit is directly connected to the positive voltage branch, the negative voltage branch, and the reference analog branch, while the control sub-circuit is connected to the control chip component IC in the function execution module via an enable signal branch (corresponding to...). Figure 1 The ④ branch is connected to the control sub-circuit, and the enable signal branch corresponds to the working voltage enable signal AVDDEN fed back from the control chip component IC to the control sub-circuit.

[0041] The following describes the operating status of the aforementioned OLED devices:

[0042] By default, the control subcircuit is electrically connected to the control chip IC to continuously detect circuit signals fed back from the control chip IC. When the control subcircuit detects these signals, it maintains this default state. Correspondingly, the execution subcircuit remains closed, ensuring that its connected positive voltage branch, negative voltage branch, and reference analog branch are all closed and connected, guaranteeing smooth power supply. Conversely, if the control subcircuit fails to detect the circuit signals from the control chip IC, it generates a control current to drive the execution subcircuit to change its state, switching it from closed to open. This disconnects the positive voltage branch, negative voltage branch, and reference analog branch, thus de-energizing the circuit.

[0043] When the OLED device powers on and turns on the display, the control chip component IC receives power from the power supply submodule in the graphics generation module (PG) through the reference analog branch and initializes the power-on code accordingly. Next, the control chip component IC continuously feeds back the operating voltage enable signal AVDDEN to the control subcircuit in the relay module based on the aforementioned power-on code. Upon detecting the AVDDEN signal, the control subcircuit in the relay module maintains its default state, keeping the execution subcircuit closed and maintaining the connection of its connected positive voltage branch, negative voltage branch, and reference analog branch. Furthermore, the control chip component IC controls the light-emitting panel component (Panel) to wake up under the condition that the power supply submodule is powered by the positive and negative voltage branches, ultimately realizing the power-on and wake-up process of the light-emitting panel component (Panel).

[0044] When an OLED device is powered off and stops displaying, the process is reversed. Upon receiving a power-off command, the control chip IC first sends a screen-off command to the panel, simultaneously controlling the panel to transition from a wake-up state to a power-down standby state. At the same time, the control chip IC itself enters a standby sleep state. In standby sleep mode, the control chip IC no longer feeds back the operating voltage enable signal AVDDEN to the control sub-circuit of the relay module. As mentioned above, without receiving the AVDDEN signal, the control sub-circuit generates a control current, causing the execution sub-circuit to change from a closed state to an open state. This disconnects the positive voltage branch, the negative voltage branch, and the reference analog branch, thus completing the power supply cutoff and the entire power-off process.

[0045] Furthermore, during the current power-on operation of the OLED device, if the functional execution module is hot-swapped, it can easily cause abnormal operation and overheating of the control chip IC or the light-emitting panel. At the same time, the positive voltage branch, negative voltage branch, and reference analog branch will continue to maintain the existing power supply state. The continuous current, coupled with the loose connection under the hot-swapped state, can easily cause excessive heat generation, which can then burn the control chip IC and the light-emitting panel.

[0046] To address this situation, for example, when hot-swapping occurs, the operating state of the control chip component IC malfunctions. When the control chip component IC malfunctions, its communication with the control sub-circuit in the relay module also malfunctions. At this time, the IC, which normally feeds back the operating voltage enable signal AVDDEN to the control sub-circuit, cannot do so normally. Upon detecting the change in the operating voltage enable signal AVDDEN from present to absent, the control sub-circuit generates a control current, causing the control execution sub-circuit to change from a closed state to an open state. This disconnects the positive voltage branch, negative voltage branch, and reference analog branch, thus cutting off the power supply and preventing them from continuing to receive power. This isolates the electrical connection between the graphics generation module PG and the function execution module, reducing the probability of electrothermal burns and protecting the safety of all components in the OLED device.

[0047] For example, the relay module described above can be an electromagnetic relay, wherein the execution sub-circuit includes an electromagnet. When the control sub-circuit generates a control current, the electromagnet in the execution sub-circuit magnetically attracts the movable contact under the control current, changing the position of the movable contact, thereby changing the state of the execution sub-circuit to the open state, cutting off the positive voltage branch, the negative voltage branch, and the reference analog branch. When the control sub-circuit no longer generates a control current, the magnetism of the electromagnet in the execution sub-circuit disappears, the movable contact returns to its default position, thereby changing the state of the execution sub-circuit to the closed state, connecting the positive voltage branch, the negative voltage branch, and the reference analog branch, restoring power supply. Admittedly, the relay module described above can also be other types of relay elements, which can be adjusted according to the actual situation, and this application does not further limit them.

[0048] Therefore, this application proposes a jig (JIG) for OLED devices equipped with relays. By connecting the relays between the power supply and the functional elements of the OLED, the circuit on / off is controlled based on the circuit signals fed back from the functional elements of the OLED. This allows for circuit cut-off and timely interruption of heating in case of abnormal situations such as hot-plugging of the OLED device, preventing adverse consequences such as element burn-out. The aforementioned jig can isolate the graphics generation module from the function execution module during hot-plugging without affecting the power-on / off timing, reducing the impact on the normal operation of the OLED product.

[0049] Please see Figure 2 The burn prevention method in this application, used in the relay module of the aforementioned burn prevention jig, specifically includes the following steps:

[0050] 01: When the organic electroluminescent device is in operation, in response to a change in the preset signal received from the function execution module, the first electrical connection is disconnected to prevent the function execution module from being burned.

[0051] The first electrical connection relationship is the electrical connection relationship between the device's graphics generation module PG and the device's function execution module.

[0052] Further, please refer to Figure 3 Step 01 includes:

[0053] 011: When the device is in operation, in response to the control sub-circuit of the relay module receiving the operating voltage enable signal fed back by the control chip component of the function execution module, the first electrical connection is disconnected.

[0054] Further, please refer to Figure 4 Step 011 includes:

[0055] 0111: When the equipment is running, in response to a change in the operating voltage enable signal received by the control sub-circuit, the execution sub-circuit of the control relay module changes state to disconnect the first electrical connection.

[0056] The first electrical connection includes a working voltage branch and a reference analog branch. The working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module. The reference analog branch is connected between the power supply submodule and the control chip assembly of the function execution module. The execution sub-circuit is connected to the working voltage branch and the reference analog branch.

[0057] Further, please refer to Figure 5 Step 0111 includes:

[0058] 01111: When the equipment is running, in response to the change in the working voltage enable signal received by the control sub-circuit, the control sub-circuit generates a control electrical signal;

[0059] 01112: In response to the control electrical signal, the control execution sub-circuit switches from the closed state to the open state to disconnect the first electrical connection.

[0060] Specifically, during the current power-on operation of an OLED device, if the functional execution module is hot-swapped, it can easily cause abnormal operation and overheating of the control chip IC or the light-emitting panel. At the same time, the positive voltage branch, negative voltage branch, and reference analog branch will continue to maintain their existing power supply state. The continuous current, coupled with the loose connection under the hot-swapped state, can easily cause excessive heat generation, which can burn the control chip IC and the light-emitting panel.

[0061] To address this situation, for example, when hot-swapping occurs, the operating state of the control chip component IC becomes abnormal. When the operating state of the control chip component IC is abnormal, the communication between it and the control sub-circuit in the relay module is also abnormal. At this time, it can no longer properly feed back the operating voltage enable signal AVDDEN to the control sub-circuit. Upon detecting the change of the operating voltage enable signal AVDDEN from present to absent (corresponding to a preset signal change), the control sub-circuit controls the execution sub-circuit to change its state to cut off the positive voltage branch, the negative voltage branch, and the reference analog branch, thereby completing the power supply cutoff. This prevents the positive voltage branch, the negative voltage branch, and the reference analog branch from continuing to supply power, isolating the electrical connection between the graphics generation module PG and the function execution module, thereby reducing the probability of electrothermal burns and protecting the safety of various components in the OLED device.

[0062] For example, the relay module described above is an electromagnetic relay, wherein the execution sub-circuit includes an electromagnet. When the OLED device is hot-plugged, and the control sub-circuit detects the change in the operating voltage enable signal AVDDEN from present to absent, the control sub-circuit generates a control current accordingly. Under the control current, the electromagnet in the execution sub-circuit magnetically attracts the active contact, changing the position of the active contact, thereby changing the state of the execution sub-circuit to the open state, cutting off the positive voltage branch, the negative voltage branch, and the reference analog branch.

[0063] Furthermore, when the control subcircuit no longer generates control current, the electromagnet in the execution subcircuit loses its magnetism, and the active contact returns to its default position, thereby changing the state of the execution subcircuit to a closed state, connecting the positive voltage branch, the negative voltage branch, and the reference analog branch, and restoring power supply. Admittedly, the aforementioned relay module can also be other types of relay elements, and the state switching methods of the relay elements and corresponding execution subcircuits can be adjusted according to actual conditions; this application does not impose further limitations.

[0064] The organic electroluminescent device in the embodiments of this application can achieve the above-mentioned method for preventing burns.

[0065] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art of the art described in the embodiments of this application.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A burn protection device, characterized in that, The fixture is used for an organic electroluminescent device, and the fixture includes a relay module. The control sub-circuit of the relay module is electrically connected to the function execution module of the organic electroluminescent device. The relay module is configured to disconnect the first electrical connection when it receives a preset signal change from the function execution module, in order to prevent the function execution module from being burned. The first electrical connection is the electrical connection between the graphics generation module of the device and the function execution module of the device.

2. The burn prevention device according to claim 1, characterized in that, The first electrical connection includes a working voltage branch and a reference analog branch. The working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module. The reference analog branch is connected between the power supply submodule and the control chip assembly of the function execution module. The relay module includes an execution sub-circuit, which is connected to the operating voltage branch and the reference analog branch.

3. The burn prevention device according to claim 1, characterized in that, The relay module includes a control sub-circuit, which is electrically connected to the control chip component in the function execution module. The preset signal change is configured to be a change in the working voltage enable signal fed back from the control chip component to the control sub-circuit.

4. The burn prevention device according to claim 1, characterized in that, The relay module is an electromagnetic relay.

5. A method for preventing burns, characterized in that, The burn prevention method is used in the relay module of the burn prevention fixture as described in any one of claims 1-4, characterized in that the method comprises: When the organic electroluminescent device is in operation, in response to a change in a preset signal received from the function execution module, the first electrical connection is cut off to prevent the function execution module from being burned. The first electrical connection is the electrical connection between the pattern generation module of the device and the function execution module of the device.

6. The method according to claim 5, characterized in that, When the organic electroluminescent device is in operation, in response to a change in a preset signal received from the function execution module, the first electrical connection is disconnected, including: When the device is in operation, in response to the change in the operating voltage enable signal received by the control sub-circuit of the relay module from the control chip component of the function execution module, the first electrical connection is disconnected.

7. The method according to claim 6, characterized in that, When the device is running, in response to receiving a working voltage enable signal from the control chip component of the function execution module, disconnecting the first electrical connection includes: When the device is in operation, in response to the control sub-circuit receiving a change in the operating voltage enable signal, the execution sub-circuit of the relay module is controlled to change its state to disconnect the first electrical connection relationship. The first electrical connection relationship includes an operating voltage branch and a reference analog branch. The operating voltage branch is connected between the power supply sub-module of the graphics generation module and the light-emitting panel assembly of the function execution module. The reference analog branch is connected between the power supply sub-module and the control chip assembly of the function execution module. The execution sub-circuit is connected to the operating voltage branch and the reference analog branch.

8. The method according to claim 7, characterized in that, When the device is running, in response to the control subcircuit receiving a change in the operating voltage enable signal, controlling the execution subcircuit of the relay module to change its state includes: When the device is in operation, in response to the control subcircuit receiving a change in the operating voltage enable signal, the control subcircuit is controlled to generate a control electrical signal; In response to the control electrical signal, the execution sub-circuit is controlled to switch from a closed state to an open state to disconnect the first electrical connection.

9. An organic electroluminescent device, characterized in that, The device includes a burn prevention jig as described in any one of claims 1-4, and the device is capable of implementing the burn prevention method as described in any one of claims 5-8.

10. The device according to claim 9, characterized in that, The device further includes a graphics generation module and a function execution module. A working voltage branch and a reference analog branch are connected between the graphics generation module and the function execution module. The working voltage branch is connected between the power supply submodule of the graphics generation module and the light-emitting panel assembly of the function execution module, and the reference analog branch is connected between the power supply submodule and the control chip assembly of the function execution module.

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