Light-emitting device and control method for light-emitting device

Abstract

This invention provides a light-emitting device and a control method for the light-emitting device. The light-emitting device includes: a light-emitting element, an electrochromic device, and a control circuit; the light-emitting element includes: a display area and a non-display area located at the edge of the display area; the electrochromic device is disposed in the non-display area; the control circuit includes: a constant current module connected to the light-emitting element, a constant voltage module connected to the electrochromic device, and a control module; the control module is connected to the constant current module, the constant voltage module, and the control system respectively, and is used to control the output of the constant current module and / or the constant voltage module according to the mode control signal sent by the control system. This invention, by placing the electrochromic device in the non-display area at the edge of the display area of ​​the light-emitting element, can improve the efficiency of preventing water and oxygen from entering the light-emitting element, and the electrochromic device can improve the interactivity of the light-emitting device while complementing the indicator function of the light-emitting element, providing an indication function when the light-emitting element fails.

Description

Technical Field

[0001] This invention relates to the field of semiconductor technology, and in particular to a light-emitting device and a control method for the light-emitting device. Background Technology

[0002] In the practical application of light-emitting devices, components such as water vapor and oxygen in the air have a significant impact on the lifespan of the devices. This is because: Light-emitting devices require electrons to be injected from the cathode during operation, necessitating a low work function for the cathode. However, cathodes are typically made of metals such as aluminum, magnesium, and calcium, which are chemically reactive and readily react with infiltrated water vapor and oxygen. Furthermore, water vapor and oxygen can also react chemically with the hole and electron transport layers of the light-emitting device, leading to device failure. Failure of the light-emitting device in this way affects its usability. Therefore, improving the water and oxygen resistance of light-emitting devices is a pressing technical problem that needs to be solved.

[0003] Furthermore, as human-computer interaction and machine-to-machine interaction continue to advance, consumers increasingly desire more expressive lighting, emotional interaction, and human-computer interaction. This presents new challenges to the design of lighting devices. Summary of the Invention

[0004] This invention provides a light-emitting device and a control method for the light-emitting device to solve the problem of how to improve the water and oxygen resistance of the light-emitting device.

[0005] In a first aspect, embodiments of the present invention provide a light-emitting device, comprising: a light-emitting device, an electrochromic device, and a control circuit; the light-emitting device comprises: a display area and a non-display area located at the edge of the display area; the electrochromic device is disposed in the non-display area; partially or completely covering the non-display area; the control circuit comprises: a constant current module connected to the light-emitting device, a constant voltage module connected to the electrochromic device, and a control module;

[0006] The control module is connected to the constant current module, the constant voltage module and the control system respectively, and is used to control the output of the constant current module and / or the constant voltage module according to the mode control signal sent by the control system.

[0007] In one possible implementation, the light-emitting device further includes an insulating layer; the non-display area includes an electrode wiring area; the insulating layer is disposed between the electrochromic device and the non-display area; the insulating layer at least partially covers the electrode wiring area.

[0008] In one possible implementation, the light-emitting device further includes: a water-blocking layer disposed between adjacent electrochromic devices; wherein the material of the water-blocking layer includes a water-absorbing material; the water-absorbing material includes one or more of metal oxides, metal salts, or organometallic oxides.

[0009] In one possible implementation, the thickness of the conductive reflective electrode layer of the electrochromic device is 0.5 μm-10 μm. Preferably, the thickness of the conductive reflective electrode layer is 2-10 μm.

[0010] In one possible implementation, the number of electrochromic devices is one or more; wherein, the plurality of electrochromic devices are arranged in order of increasing distance from the display area.

[0011] In one possible implementation, the electrochromic device includes a conductive reflective electrode layer, an electrochromic ink layer, and an electrolytic layer distributed along the vertical direction of the display area;

[0012] The electrochromic ink layer is uniformly colored, or formed into multiple predetermined pattern structures with the same or different colors.

[0013] In one possible implementation, the light-emitting device is formed into a predetermined pattern structure, or into multiple identical or different predetermined pattern structures; the conductive reflective electrode layer is designed to be thickened.

[0014] In one possible implementation, the control circuit further includes an environmental information sensor module connected to the control module;

[0015] The control module is also used to control the output of the constant voltage module according to the detection signal sent by the environmental information sensor module, or to control the output of the constant voltage module and the constant current module.

[0016] In one possible implementation, the environmental information sensor module is a temperature sensor module and / or an ultraviolet light sensor module.

[0017] The light-emitting device provided in this invention includes: a light-emitting device, an electrochromic device, and a control circuit. The light-emitting device includes: a display area and a non-display area located at the edge of the display area, with the electrochromic device disposed in the non-display area. The electrochromic device's placement at the edge of the display area improves the efficiency of preventing water and oxygen from entering the light-emitting device. The control circuit includes: a constant current module connected to the light-emitting device, a constant voltage module connected to the electrochromic device, and a control module. The control module is connected to the constant current module, the constant voltage module, and the control system, respectively, and is used to control the output of the constant current module and / or the constant voltage module according to a mode control signal sent by the control system. The control module controls the light-emitting device and the electrochromic device to emit light according to the mode control signal sent by the control system, improving the interactivity between the light-emitting device and the user, enhancing the user experience, and complementing the indicator function of the light-emitting device. This invention, by placing the electrochromic device in the non-display area at the edge of the light-emitting device's display area, improves the efficiency of preventing water and oxygen from entering the light-emitting device, and the electrochromic device can complement the indicator function of the light-emitting device while improving interactivity, providing an indicator function when the light-emitting device fails.

[0018] Secondly, embodiments of the present invention provide a control method for a light-emitting device, comprising:

[0019] Upon receiving a mode control signal from the control system, a first control command corresponding to the constant current module and / or a second control command corresponding to the constant voltage module are generated based on the mode control signal.

[0020] The first control instruction generated is used to execute the control operation corresponding to the output of the constant current module, and the second control instruction generated is used to execute the control operation corresponding to the output of the constant voltage module.

[0021] The first control command includes: a first correction current corresponding to the constant current module and a light emission timing corresponding to the light-emitting device; the light emission timing includes a light emission timing of one or more predetermined patterns;

[0022] The second control command includes: a first correction voltage corresponding to the constant voltage module and a light emission timing corresponding to the electrochromic device.

[0023] In one possible implementation, the emission timing of the corresponding electrochromic device includes: the emission timing of multiple predetermined pattern structures in the electrochromic device, or one or more emission timings of multiple electrochromic devices.

[0024] In one possible implementation, the method further includes:

[0025] When the signal received from the environmental information sensor module meets the set conditions, a third control command is generated based on the signal sent by the environmental information sensor module.

[0026] The output voltage of the constant voltage module is adjusted according to the third control command, or the output voltage of the constant voltage module and the output current of the constant current module are adjusted to adjust the color of the electrochromic device or increase the brightness of the light-emitting device.

[0027] The third control command includes: a second correction voltage corresponding to the constant voltage module, or a second correction voltage corresponding to the constant voltage module and a second correction current corresponding to the constant current module.

[0028] In one possible implementation, the signals sent by the environmental information sensor module include ambient temperature and / or ultraviolet intensity;

[0029] The setting conditions include: the ambient temperature being greater than a set temperature or the ultraviolet radiation intensity being greater than a set ultraviolet radiation intensity. These setting conditions correspond to strong light conditions.

[0030] In one possible implementation, the method further includes:

[0031] When the signal sent by the environmental information sensor module meets the low light conditions, a fourth control command is generated based on the signal sent by the environmental information sensor module.

[0032] The output voltage of the constant voltage module is adjusted according to the fourth control command, or the output voltage of the constant voltage module and the output current of the constant current module are adjusted to adjust the color of the electrochromic device or increase the brightness of the light-emitting device.

[0033] The fourth control command includes: a third correction voltage corresponding to the constant voltage module, or a third correction voltage corresponding to the constant voltage module and a third correction current corresponding to the constant current module.

[0034] The low light conditions include: the difference between the ambient temperature and the set temperature is greater than a first threshold, or the difference between the ultraviolet intensity and the set ultraviolet intensity is greater than a second threshold.

[0035] This invention provides a control method for a light-emitting device. Upon receiving a mode control signal from a control system, the method generates a first control command corresponding to a constant current module and / or a second control command corresponding to a constant voltage module based on the mode control signal. The method executes control operations output by the corresponding constant current module according to the generated first control command and executes control operations output by the corresponding constant voltage module according to the generated second control command. The first control command includes a first correction current for the corresponding constant current module and a light-emitting timing sequence for the corresponding light-emitting device, where the light-emitting timing sequence includes one or more predetermined patterns. The second control command includes a first correction voltage for the corresponding constant voltage module and a light-emitting timing sequence for the corresponding electrochromic device. This invention places an electrochromic device in the non-display area at the edge of the light-emitting device's display area. This improves the efficiency of preventing water and oxygen from entering the light-emitting device, thereby reducing the frequency of repairs or replacements, improving the safety and maintenance costs of the light-emitting device. Furthermore, the electrochromic device can enhance the interactivity of the light-emitting device while complementing its indicator function, providing a warning when the light-emitting device fails. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention;

[0039] Figure 3a This is a schematic diagram of the structure of a light-emitting device provided in another embodiment of the present invention;

[0040] Figure 3b This is a cross-sectional schematic diagram of the encapsulation layer provided in an embodiment of the present invention;

[0041] Figure 4a This is a schematic diagram of the encapsulation layer provided in an embodiment of the present invention;

[0042] Figure 4b This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of the structure of a light-emitting device provided in another embodiment of the present invention;

[0044] Figure 6This is a flowchart illustrating the implementation of a control method for a light-emitting device according to an embodiment of the present invention. Detailed Implementation

[0045] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0046] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0047] Unless otherwise stated, the term "multiple" means two or more.

[0048] In this embodiment of the invention, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0049] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0050] This invention focuses on combining an electrochromic device and a light-emitting device. The electrochromic device serves as a waterproof and oxygen-resistant structure for the light-emitting device, addressing the issue of improving the water and oxygen barrier efficiency of the light-emitting device. Furthermore, it enables richer interactive scenarios and enhances the user experience. First, a brief overview of the principle of the electrochromic device and its application in this application is provided.

[0051] Electrochromic devices exhibit a reversible change in the optical properties of their color-changing materials under an applied driving voltage, thereby achieving dimming. A typical electrochromic device comprises a glass substrate, a sealant, an electrochromic material, a transparent conductive layer (ITO, FTO, ZnO, etc.), and a conductive reflective layer (Ag alloys, Ag / Au, Ag / Pt). This application innovatively applies electrochromic devices to light-emitting devices, based on the principle that the light transmittance of the color-changing material changes with voltage.

[0052] Specifically, the light-emitting device can be applied to vehicle lights, or to anti-glare rearview mirrors and new smart glass in the automotive industry.

[0053] The working principle of electrochromic devices is similar to that of OLEDs. A conductive reflective layer provides electrons, and a transparent conductive layer provides holes. Under an electric field, electrons and holes are injected into the electrochromic material layer, causing a reversible electrochemical reaction or anodic oxidation reaction to achieve electrochromism. For example, electrochromism from colorless to gray can be achieved. Furthermore, by adjusting the type of electrochromic material, different colors can be obtained, thus achieving color display.

[0054] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0055] Figure 1 This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the light-emitting device 10 includes: a display area 101, a non-display area 102, an electrode wiring area 103, a bonding area 104, and a flexible circuit board 105.

[0056] The non-display area 102 is located at the edge of the display area 101, and the electrode wiring area 103 is located in the non-display area 102. The light-emitting device 10 is electrically connected to an external device through a flexible circuit board 105.

[0057] Figure 2 This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention. Figure 2 As shown, the light-emitting device includes: a light-emitting device 10, an electrochromic device 20, and a control circuit 30.

[0058] Among them, light-emitting device 10, such as Figure 1 The diagram includes a display area 101 and a non-display area 102 located at the edge of the display area. An electrochromic device 20 is disposed in the non-display area 102.

[0059] Optionally, the electrochromic device 20 may partially or completely cover the non-display area 20. Figure 2 The electrochromic device 20, which is shown, completely covers the non-display area 102.

[0060] Since the electrochromic device 20 serves as the outer packaging structure of the light-emitting device 10, the light-emitting device 10 is prone to bending during installation or transportation. In order to improve structural stability and prevent cracks from extending to the light-emitting device 10 during the bending process, the conductive reflective electrode layer of the electrochromic device 20 is designed to be thickened.

[0061] In one possible implementation, the thickness of the conductive reflective electrode layer in the electrochromic device 20 ranges from 0.5 μm to 10 μm. Preferably, the thickness of the conductive reflective electrode layer ranges from 2 to 10 μm.

[0062] In one possible implementation, the light-emitting device also includes an insulating layer. For example... Figure 1 The non-display area 102 shown includes an electrode wiring area 103. An insulating layer is disposed between the electrochromic device 20 and the electrode wiring area 103. The insulating layer at least partially covers the electrode wiring area 103.

[0063] The control circuit 30 includes: a constant current module 301 connected to the light-emitting device 10, a constant voltage module 302 connected to the electrochromic device 20, and a control module 303.

[0064] The control module 303 is connected to the constant current module 301, the constant voltage module 302 and the control system respectively, and is used to control the output of the constant current module 301 and / or the constant voltage module 302 according to the mode control signal sent by the control system.

[0065] In different embodiments, the control circuit 30 may be set separately for the light-emitting device, or the control circuit 30 may be integrated into the control system.

[0066] The light-emitting device provided in this embodiment of the invention includes: a light-emitting device 10, an electrochromic device 20, and a control circuit 30. The light-emitting device 10 includes: a light-emitting device 10 and a non-display area 102 located at the edge of the light-emitting device 10. The electrochromic device 20 is disposed in the non-display area 102. The electrochromic device 20, being disposed at the edge of the light-emitting device 10, can improve the efficiency of blocking water and oxygen from entering the light-emitting device 10 and prevent the extension of edge cracks. It can also function as an ambient light or indicator light to facilitate human-vehicle interaction. The control circuit 30 includes: a constant current module 301 connected to the light-emitting device 10, a constant voltage module 302 connected to the electrochromic device 20, and a control module 303. The control module 303 is connected to the constant current module 301, the constant voltage module 302, and the control system, respectively, and is used to control the output of the constant current module 301 and / or the constant voltage module 302 according to the mode control signal sent by the control system. The control module 303 controls the light-emitting device 10 and the electrochromic device 20 to emit light according to the mode control signal sent by the control system, thereby improving the interactivity between the light-emitting device and the user, enhancing the user experience, and complementing the prompting function of the light-emitting device 10. In this invention, the electrochromic device 20 is placed in the non-display area 102 at the edge of the light-emitting device 10, which can improve the efficiency of preventing water and oxygen from entering the light-emitting device 10. Furthermore, the electrochromic device 20 can complement the prompting function of the light-emitting device 10 while improving the interactivity of the light-emitting device, providing a prompting function when the light-emitting device 10 fails.

[0067] The light-emitting device 10 can be an OLED, LED, quantum dot light-emitting device, mini LED, or microLED.

[0068] Preferably, the light-emitting device 10 is an OLED device. As a surface light source, OLED emits soft light, has clear boundaries, and is thin and light, which can highlight the design advantages of the light-emitting device.

[0069] In different embodiments, the number of electrochromic devices 20 varies.

[0070] In one possible implementation, such as Figure 2 As shown, the number of electrochromic devices 20 is one.

[0071] In one possible implementation, there are multiple electrochromic devices 20. These multiple electrochromic devices 20 are arranged in order of increasing distance from the light-emitting device 10. Optionally, adjacent electrochromic devices 20 may be arranged in contact or spaced apart. The provision of multiple layers of electrochromic ink can form multiple barriers to prevent water and oxygen penetration while also enhancing the display scene.

[0072] Figure 3a This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention, as shown below. Figure 3a As shown, there are two electrochromic devices 20. Adjacent electrochromic devices 20 are spaced apart. Figure 3b The image shows a cross-sectional view of two adjacent electrochromic devices 20 when the number of such devices 20 is two and spaced apart. The thickness of the electrochromic device 20 is at least twice the thickness of the light-emitting device 10, preferably more than five times. This effectively prevents external water and oxygen from entering the light-emitting device 10.

[0073] In one possible implementation, when adjacent electrochromic devices 20 are spaced apart, the light-emitting device further includes a water-blocking layer disposed between adjacent electrochromic devices 20; wherein the water-blocking layer is made of a water-absorbing material to prevent mutual interference between the electrochromic devices 20 and further improve the barrier rate against water and oxygen penetration. Optionally, the water-absorbing material includes one or more of metal oxides, metal salts, or organometallic oxides.

[0074] Optionally, the area of ​​the electrochromic device 20 can be used as an encapsulation area, and an adhesive layer can be prepared on the upper layer of the electrochromic device 20 to achieve sealing of the light-emitting device 10.

[0075] In different embodiments, the electrochromic ink layer and the light-emitting device 10 have different structural compositions to achieve rich interactive scenarios.

[0076] In one possible implementation, the electrochromic device 20 includes a conductive reflective electrode layer, an electrochromic ink layer, and an electrolytic layer distributed along the direction perpendicular to the light-emitting device 10. Optionally, in some embodiments, the electrochromic ink layer is uniformly colored. In some embodiments, the electrochromic ink layer is formed as multiple predetermined pattern structures with the same or different colors. Figure 4a As shown.

[0077] In practical applications, when only one electrochromic device 20 is included, different colors can be applied to different areas to enrich the interactive display modes, such as... Figure 4a As shown.

[0078] When multiple electrochromic devices 20 are included, each electrochromic device 20 can be colored the same color, or each electrochromic device 20 can be colored a different color (not shown). Alternatively, each electrochromic device 20 can be colored as follows: Figure 4a Different colors are shown.

[0079] Regarding the structural composition of the light-emitting device 10, optionally, in some embodiments, the light-emitting device 10 is formed as a predetermined pattern structure. In some embodiments, the light-emitting device 10 is formed as multiple identical or different predetermined pattern structures.

[0080] In this way, the aesthetics of the light-emitting device are improved through the design of predetermined pattern structures. Furthermore, the interactive display modes are enriched, enhancing the user experience of the interactive functions. For example... Figure 4b As shown, the light-emitting device 10 is formed into an arrow-shaped pattern structure. In one possible implementation, each light-emitting device is provided with one arrow. The arrow illuminates or flashes to indicate a direction. In another possible implementation, the light-emitting device 10 is formed into multiple arrows arranged in a regular pattern. These arrows illuminate simultaneously, flash, or display a marquee-like display to indicate the direction.

[0081] Figure 4b The example shown uses only an arrow-shaped pattern. In other embodiments, to achieve directional indication and improve user experience, the electrochromic ink layer is formed into various other pattern structures such as teardrop shapes and isosceles triangles. Of course, multiple patterns can be mixed, as well as other pattern forms. For example, the light-emitting device 10 is formed with a central arrow shape and an outer ring. In actual control, either the ring or the arrow can be controlled to light up independently.

[0082] Figure 5 This is a schematic diagram of the structure of a light-emitting device provided in an embodiment of the present invention, as shown below. Figure 5 As shown, in one possible implementation, the control circuit 30 further includes an environmental information sensor module 304 connected to the control module 303.

[0083] The control module 303 is also used to control the output of the constant voltage module 302 according to the detection signal sent by the environmental information sensor module 304, or to control the output of the constant voltage module 302 and the constant current module 301.

[0084] In one possible implementation, the environmental information sensor module 304 is a temperature sensor module and / or an ultraviolet light sensor module.

[0085] In one possible implementation, the environmental information sensor module 304 is a temperature sensor module. In practical applications, when the ambient temperature is higher than a temperature threshold, the light intensity is considered high. At this time, the color of the electrochromic device 20 and the brightness of the light-emitting device 10 can be controlled and adjusted to enhance the warning effect. Similarly, when the ambient temperature is lower than the set temperature threshold range, the light intensity is considered weak. The color of the electrochromic device 20 can be adjusted and / or the brightness of the light-emitting device 10 can be reduced. This achieves a warning effect while preventing excessive brightness from causing glare to passersby or others, and also reduces overall energy consumption. The temperature threshold can be adjusted, for example, based on season, climate, or region, to improve control accuracy.

[0086] In one possible implementation, the environmental information sensor module 304 is an ultraviolet (UV) light sensor module. The information detected by the UV light sensor module is the most direct way to reflect the light intensity. Therefore, using a UV light sensor module in the environmental information sensor module 304 can effectively control the electrochromic device 20 and / or the light-emitting device 10.

[0087] In one possible implementation, the environmental information sensor module 304 is a temperature sensor module and an ultraviolet light sensor module, which achieves complementary detection, avoids malfunctions caused by the failure of one of the detection modules, and further realizes effective control of the electrochromic device 20.

[0088] Specifically, the light-emitting device can be installed on the vehicle body. Optionally, it can be used as one or more of the headlights, taillights, and turn signals. In addition, it is possible that it can be installed in other locations on the vehicle as a new interactive prompt structure, such as on the side of the vehicle, handlebars, or footrests.

[0089] Figure 6 This is a flowchart illustrating the implementation of a control method for a light-emitting device according to an embodiment of the present invention, as shown below. Figure 6 As shown, the method includes the following steps:

[0090] S601, upon receiving a mode control signal from the control system, generates a first control command corresponding to the constant current module 301 and / or a second control command corresponding to the constant voltage module 302 based on the mode control signal.

[0091] In this embodiment of the invention, the execution entity is the control module 303 in the control circuit 30. Optionally, the control module 303 can be an independently configured module, or it can be the main controller or processor in the control system, with the related information processing and control operations implemented by the main controller or processor.

[0092] In different embodiments, depending on the mode control signal, the electrochromic device 20 or the light-emitting device 10 can be controlled to light up individually, or both areas can light up simultaneously.

[0093] S602, execute the control operation output by the corresponding constant current module 301 according to the generated first control instruction, and execute the control operation output by the corresponding constant voltage module 302 according to the generated second control instruction.

[0094] The first control command includes a first correction current corresponding to the constant current module 301 and a light-emitting timing sequence corresponding to the light-emitting device 10. Optionally, the light-emitting timing sequence includes a light-emitting timing sequence of one or more predetermined patterns.

[0095] When the light-emitting device 10 has only one predetermined pattern, the flashing or lighting time of the light-emitting device 10 is controlled by the light-emitting timing. When the light-emitting device 10 has multiple predetermined patterns, the flashing or sequential lighting of the light-emitting device 10 is controlled by the light-emitting timing.

[0096] The second control command includes a first correction voltage corresponding to the constant voltage module 302 and a light emission timing corresponding to the electrochromic device 20. The first correction voltage includes one or more voltage values. When the electrochromic ink layer is injected with a single material, the first correction voltage is a single voltage value. When the electrochromic ink layer is composed of different colors, the correspondence between the correction voltage and the colors differs, requiring zoned control; therefore, the first correction voltage includes multiple correction voltages.

[0097] In one possible implementation, the light emission timing corresponding to the electrochromic device 20 includes: the light emission timing corresponding to multiple predetermined pattern structures in the electrochromic device 20, or one or more light emission timings corresponding to multiple electrochromic devices 20.

[0098] This invention provides a control method for a light-emitting device. Upon receiving a mode control signal from a control system, the method generates a first control command corresponding to a constant current module 301 and / or a second control command corresponding to a constant voltage module 302 based on the mode control signal. The method executes control operations output by the constant current module 301 according to the generated first control command and executes control operations output by the constant voltage module 302 according to the generated second control command. The first control command includes a first correction current corresponding to the constant current module 301 and a light-emitting timing sequence corresponding to the light-emitting device 10, where the light-emitting timing sequence includes one or more predetermined patterns. The second control command includes a first correction voltage corresponding to the constant voltage module 302 and a light-emitting timing sequence corresponding to the electrochromic device 20. This invention places the electrochromic device 20 in the non-display area 102 at the edge of the light-emitting device 10, which improves the efficiency of preventing water and oxygen from entering the light-emitting device 10. Furthermore, the electrochromic device 20 can enhance the interactivity of the light-emitting device while complementing the prompting function of the light-emitting device 10, providing a prompting function when the light-emitting device 10 fails.

[0099] In one possible implementation, the control circuit 30 further includes an environmental information sensor module 304 connected to the control module 303, then the method further includes:

[0100] When the signal received from the environmental information sensor module 304 meets the set conditions, a third control command is generated based on the signal received from the environmental information sensor module 304.

[0101] The output voltage of the constant voltage module 302 can be adjusted according to the third control command, or the output voltage of the constant voltage module 302 and the output current of the constant current module 301 can be adjusted to adjust the color of the electrochromic device 20 or increase the brightness of the light-emitting device 10. The electrochromic device 20 can be adjusted to a more conspicuous color, such as red.

[0102] The third control command includes: a second correction voltage corresponding to the constant voltage module 302, or a second correction voltage corresponding to the constant voltage module 302 and a second correction current corresponding to the constant current module 301.

[0103] In one possible implementation, the environmental information sensor module 304 sends signals including ambient temperature and / or ultraviolet (UV) intensity. The set condition is a strong light condition, which includes either an ambient temperature greater than a set temperature or a UV intensity greater than a set UV intensity.

[0104] In one possible implementation, before generating the third control command, the method further includes: determining the second correction current as a set current value. Wherein, when the light intensity is greater than the set value, the light-emitting device 10 is controlled to maintain the same brightness under any lighting conditions.

[0105] In one possible implementation, before generating the third control command, the method further includes: calculating a second correction current based on the ambient temperature and / or ultraviolet intensity to save energy while providing a warning effect, ensuring effective warning under strong light conditions.

[0106] Similarly, in one possible implementation, before generating the third control command, the method further includes: determining the second correction voltage as a set voltage value; or calculating the second correction voltage based on the ambient temperature and / or ultraviolet radiation intensity.

[0107] In one possible implementation, the method further includes:

[0108] When the signal sent by the environmental information sensor module 304 meets the low light conditions, a fourth control command is generated based on the signal sent by the environmental information sensor module 304.

[0109] The output voltage of the constant voltage module 302 can be adjusted according to the fourth control command, or the output voltage of the constant voltage module 302 and the output current of the constant current module 301 can be adjusted to adjust the color of the electrochromic device 20, or reduce the brightness of the light-emitting device 10. This can adjust the electrochromic device 20 to a softer color, such as a dark red, to avoid excessive glare for passersby under low-light conditions.

[0110] The fourth control command includes: a third correction voltage corresponding to the constant voltage module 302, or a third correction voltage corresponding to the constant voltage module 302 and a third correction current corresponding to the constant current module 301. Weak light conditions include: the difference between the ambient temperature and the set temperature is greater than a first threshold, or the difference between the ultraviolet intensity and the set ultraviolet intensity is greater than a second threshold.

[0111] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0112] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0113] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0114] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0115] In the embodiments provided by this invention, it should be understood that the disclosed devices / terminals and methods can be implemented in other ways. For example, the device / terminal embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0116] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0117] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0118] If the integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various control method embodiments for the light-emitting device described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0119] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A light-emitting device, characterized in that, include: Light-emitting devices, electrochromic devices, and control circuits; The light-emitting device includes: a display area, a non-display area located at the edge of the display area, an electrode wiring area, a bonding area, and a flexible circuit board; the electrode wiring area is located in the non-display area; the light-emitting device is electrically connected to an external device through the flexible circuit board; the electrochromic device is disposed in the non-display area, partially or completely covering the non-display area; the thickness of the electrochromic device is greater than the thickness of the light-emitting device. The control circuit includes: a constant current module connected to the light-emitting device, a constant voltage module connected to the electrochromic device, and a control module. The control module is connected to the constant current module, the constant voltage module and the control system respectively, and is used to control the output of the constant current module and / or the constant voltage module according to the mode control signal sent by the control system.

2. The light-emitting device according to claim 1, characterized in that, The number of electrochromic devices is one or more; wherein, the multiple electrochromic devices are arranged in order of proximity to the display area.

3. The light-emitting device according to claim 2, characterized in that, Also includes: A water-blocking layer disposed between adjacent electrochromic devices; wherein the material of the water-blocking layer includes a water-absorbing material; the water-absorbing material includes one or more of metal oxides, metal salts, or organometallic oxides.

4. The light-emitting device according to claim 1, 2 or 3, characterized in that, The electrochromic device includes a conductive reflective electrode layer, an electrochromic ink layer, and an electrolytic layer distributed along the vertical direction of the display area; The electrochromic ink layer is uniformly colored, or formed into multiple predetermined pattern structures with the same or different colors; the light-emitting device is formed into a predetermined pattern structure, or formed into multiple predetermined pattern structures with the same or different colors.

5. The light-emitting device according to claim 4, characterized in that, The thickness of the conductive reflective electrode layer of the electrochromic device ranges from 0.5µm to 10µm.

6. The light-emitting device according to claim 1, characterized in that, The control circuit further includes an environmental information sensor module connected to the control module; The control module is also used to control the output of the constant voltage module according to the detection signal sent by the environmental information sensor module, or to control the output of the constant voltage module and the constant current module.

7. The light-emitting device according to claim 6, characterized in that, The environmental information sensor module is a temperature sensor module and / or an ultraviolet light sensor module.

8. A control method for the light-emitting device according to any one of claims 1 to 7, characterized in that, include: Upon receiving a mode control signal from the control system, a first control command corresponding to the constant current module and / or a second control command corresponding to the constant voltage module are generated based on the mode control signal. The first control instruction generated is used to execute the control operation corresponding to the output of the constant current module, and the second control instruction generated is used to execute the control operation corresponding to the output of the constant voltage module. The first control command includes: a first correction current corresponding to the constant current module and a light emission timing corresponding to the light-emitting device; the light emission timing includes a light emission timing of one or more predetermined patterns; The second control command includes: a first correction voltage corresponding to the constant voltage module and a light emission timing corresponding to the electrochromic device; The light emission timing sequence corresponding to the electrochromic device includes: the light emission timing sequence corresponding to multiple predetermined pattern structures in the electrochromic device, or one or more light emission timing sequences corresponding to multiple electrochromic devices.

9. The control method according to claim 8, characterized in that, Also includes: When the signal received from the environmental information sensor module meets the set conditions, a third control command is generated based on the signal sent by the environmental information sensor module. The output voltage of the constant voltage module is adjusted according to the third control command, or the output voltage of the constant voltage module and the output current of the constant current module are adjusted to adjust the color of the electrochromic device or increase the brightness of the light-emitting device. The third control command includes: a second correction voltage corresponding to the constant voltage module, or a second correction voltage corresponding to the constant voltage module and a second correction current corresponding to the constant current module.

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