Display device

Abstract

The invention discloses a display device, and relates to the technical field of display. The display device comprises a display panel, a light-emitting control module connected with the display panel, and a driving module connected with the light-emitting control module. Wherein the display panel comprises a plurality of light-emitting areas, and a plurality of sub-pictures in one frame of picture are respectively displayed in the plurality of light-emitting areas; the light-emitting control module comprises a plurality of light-emitting control circuits, and each light-emitting control circuit is used for controlling a light-emitting area in the display panel according to a light-emitting control signal; the driving module is used for providing light-emitting control signals for the light-emitting control module. The heat power consumption of the display device can be reduced, the picture uniformity of the display panel is improved, and a better display effect and use experience are provided for a user.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0002] With the development of intelligent vehicles, PHUD (Projected Head Up Display) technology has gradually become an important research direction of display technology. In PHUD technology, the image displayed by the display panel is reflected to the human eye through the optical path, but the brightness of the display panel will be lost through the optical path. In a daytime environment, if the human eye needs to see the image clearly, the eye brightness needs to reach 1000nit to 2000nit. Therefore, PHUD technology has very high requirements on the brightness of the display panel, and the display panel needs to reach a brightness level of tens of thousands. In order to achieve high-brightness display, a larger driving current needs to be provided to the display panel, but a larger driving current will cause the IR drop (the voltage drop generated when the current I passes through the resistor R) of the display panel to be larger, affecting the display effect of the picture. Summary of the Invention

[0003] The embodiments of the present application provide a display device that can reduce the thermal power consumption of the display device and improve the image uniformity of the display panel, thereby providing users with better display effects and usage experience.

[0004] An embodiment of the present application provides a display device comprising a display panel, a light control module connected to the display panel, and a driver module connected to the light control module. The display panel comprises multiple light-emitting areas, wherein multiple sub-images in a frame are displayed in the multiple light-emitting areas; the light control module comprises multiple light control circuits, each of which is configured to control one of the light-emitting areas in the display panel according to a light control signal; and the driver module is configured to provide the light control signal to the light control module.

[0005] Optionally, the plurality of sub-pictures in one frame of the picture are displayed simultaneously in the plurality of the light-emitting areas.

[0006] Optionally, the driving module includes multiple driving circuits, each of which is configured to provide the light control signal to one of the light control circuits in the light control module. At a display moment, each of the multiple driving circuits provides the light control signal to the corresponding light control circuit, so that each of the multiple light control circuits controls the corresponding light-emitting area according to the light control signal.

[0007] Optionally, the plurality of sub-pictures in one frame of the picture are respectively displayed in a plurality of the light-emitting areas in a time-sharing manner.

[0008] Optionally, when one of the light-emitting areas in the display panel displays the corresponding sub-image, the remaining light-emitting areas in the display panel display a black image.

[0009] Optionally, the driving module includes a driving circuit configured to provide the lighting control signals to the plurality of lighting control circuits in the lighting control module. At a display time, the driving circuit provides a first lighting control signal to one lighting control circuit in the lighting control module and provides a second lighting control signal to the remaining lighting control circuits in the lighting control module. The first lighting control signal is configured to control the corresponding lighting area to display the sub-image, and the second lighting control signal is configured to control the corresponding lighting area to display the black image.

[0010] Optionally, multiple frames of the picture are refreshed and displayed on the display panel at a first frequency; during the display of one frame of the picture, multiple sub-pictures in the picture are refreshed and displayed on the display panel at a second frequency, wherein the second frequency is greater than the first frequency.

[0011] Optionally, one frame of the picture includes n sub-pictures, where n is a positive integer, and the second frequency is n times the first frequency.

[0012] Optionally, the driving circuit includes a power management integrated circuit.

[0013] Optionally, the light emitting control circuit includes a flexible printed circuit.

[0014] In summary, the display device provided by the embodiment of the present application has a display panel divided into multiple light-emitting areas, and the driving module provides a light-emitting control signal to the light-emitting control module, so that the multiple light-emitting control circuits in the light-emitting control module control the multiple light-emitting areas according to the light-emitting control signal. In the case of high-brightness display, compared with the display area of the entire display panel being controlled by one light-emitting control circuit, the embodiment of the present application controls the entire display panel by multiple light-emitting control circuits, which can reduce the driving current of one light-emitting control circuit, and the voltage drop caused by the impedance of the peripheral driving wiring will be reduced. In addition, the embodiment of the present application controls one light-emitting area in the display panel by one light-emitting control circuit, which can reduce the size of the area through which the driving current flows, and the voltage drop caused by the impedance of the in-plane wiring will be reduced. Based on this, the embodiment of the present application can reduce the thermal power consumption of the display device and improve the picture uniformity of the display panel, providing users with better display effects and usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1is a schematic diagram of a display device;

[0016] Figure 2 is a schematic diagram of another display device;

[0017] Figure 3 is a schematic diagram of yet another display device;

[0018] Figure 4 It is a schematic diagram of a pressure drop;

[0019] Figure 5 is a schematic diagram of a display device provided in an embodiment of the present application;

[0020] Figure 6 is a schematic diagram of another display device provided in an embodiment of the present application;

[0021] Figure 7 This is a schematic diagram of a time-sharing display of a screen provided in an embodiment of the present application;

[0022] Figure 8 This is a schematic diagram of another display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings. The described technical solutions are only used to explain and illustrate the concept of the present application and should not be regarded as limiting the scope of protection of the present application.

[0024] In addition, the term "a plurality of" in the embodiments of the present application refers to two or more. The terms "first" and "second" in the embodiments of the present application are used to distinguish different technical features, and do not indicate any order, quantity or importance.

[0025] The various embodiments provided in this application are similar, and features in different embodiments may be combined with each other.

[0026] The order in which the following embodiments are described is not intended to limit the preferred order of the embodiments.

[0027] As can be seen from the above background technology, PHUD technology has very high brightness requirements for the display panel, requiring the display panel to reach tens of thousands of brightness levels. Conventional LCD (Liquid Crystal Display) and OLED (Organic Light Emitting Diode) display panels are difficult to increase to tens of thousands of brightness levels. However, Micro LED (Micro Light Emitting Diode) displays can achieve high brightness. Therefore, Micro LED displays have unique advantages in the application of in-vehicle PHUD products.

[0028] See also Figure 1 , Figure 1 is a schematic diagram of a display device. Figure 1 As shown in the figure, a conventional Micro LED display is constructed with flexible printed circuits (FPCs) on two sides and a chip-on-flexible (COF) in the middle. The COF primarily provides the data signals needed for displaying images on the display panel, while the FPCs on both sides primarily provide the scanning control signals required for display and the DC signals required for light emission. For ease of description, the DC signals required for light emission are referred to as light emission control signals in the embodiments of this application.

[0029] In PHUD technology, to achieve high-brightness display, the display panel's driving current needs to reach several amperes or tens of amperes. The large driving current means that relying solely on the FPCs on both sides cannot meet the current design requirements. Therefore, it is necessary to increase the current contact area to withstand higher current levels.

[0030] See also Figure 2 , Figure 2 is a schematic diagram of another display device. Figure 2 As shown, two FPCs are added to the upper edge of the display panel to increase the current contact area. Figure 2 The architecture shown can shunt the larger drive current, reduce the current of a single pad (pad), and reduce the heating of the bonding pad in the FPC area.

[0031] See also Figure 3 , Figure 3 Schematic diagram of another display device. Figure 3 As shown, the driving current required for display is provided by the PowerIC (Power Management Integrated Circuit) of the peripheral driving board. When the driving current reaches tens of amperes, other problems become prominent.

[0032] First, PowerICs that provide large currents have never been used in the display industry before, and new PowerIC resources need to be developed or found.

[0033] Second, large current will cause the voltage drop of each part to increase.

[0034] See also Figure 4 , Figure 4 is a schematic diagram of a pressure drop. Figure 4As shown, the input voltage of the display panel is V0, the peripheral drive wiring impedance is equivalent to R1, the internal proximal resistance of the display area is equivalent to R2, the middle resistance is equivalent to R3, the distal resistance is equivalent to R4, and the left and right resistances are equivalent to R5 and R6.

[0035] When the driving current is a few hundred milliamperes, generally only the impact of IR drop at the far and near ends is considered. However, when the driving current reaches tens of amperes, not only the far and near ends, but also the IR drop on the left and right sides must be considered, resulting in poor image uniformity on the display panel.

[0036] Furthermore, the resistance of the peripheral drive trace impedance R1 is typically kept to a few tenths of an ohm. When the drive current is less than 10A, the voltage drop caused by the entire peripheral drive can be kept below 1V. However, when the drive current reaches tens of amperes, the voltage drop caused by the peripheral drive trace impedance can reach several volts, potentially even around 10V. The voltage drop required for a typical display panel to emit light is close to 10V, and the voltage drop caused by the peripheral drive due to IR drop is also close to 10V. Consequently, the overall heat dissipation of the display device in the peripheral circuit reaches 50%. If the in-plane trace impedance is also taken into account, the heat dissipation will exceed 50%, clearly having a negative impact on the product.

[0037] In view of this, an embodiment of the present application provides a display device, which adopts a partitioned drive architecture to divide the display area of the display panel into multiple light-emitting areas. It can effectively solve the technical problems of poor picture uniformity due to large driving current under high brightness, and large voltage drop of peripheral drive or in-plane wiring, which leads to a high thermal power consumption ratio.

[0038] See also Figure 5 , Figure 5 Schematic diagram of a display device provided in an embodiment of the present application. Figure 5 As shown, the display device includes a display panel 100 , a light emitting control module 200 connected to the display panel 100 , and a driving module 300 connected to the light emitting control module 200 .

[0039] In the embodiment of the present application, the display area of the display panel 100 can be divided into zones, so that the display panel 100 includes multiple light-emitting areas 110, each of which can display a picture. A frame of a picture can be split into multiple sub-pictures to be displayed in multiple light-emitting areas 110 respectively, so that the pictures displayed by multiple light-emitting areas 110 can be combined into a frame of a picture. The embodiment of the present application does not limit the specific data of the light-emitting area 110, and it can be flexibly set according to the needs in actual application. For example, the display panel 100 may include 2, 4, 6 or 8 light-emitting areas 110.

[0040] The light-emitting control module 200 is connected to the display panel 100 and can control the display panel 100 to emit light according to the light-emitting control signal, such as controlling multiple pixel units in the display panel 100 to emit light. In the embodiment of the present application, the light-emitting control module 200 includes multiple light-emitting control circuits 210, and the display panel 100 includes multiple light-emitting areas 110. Each light-emitting control circuit 210 is used to control one light-emitting area 110 according to the light-emitting control signal. In some embodiments, the light-emitting control circuit 210 may include a flexible printed circuit, i.e., an FPC. The embodiment of the present application does not limit the specific number of the light-emitting control circuits 210. In actual applications, the number of light-emitting control circuits 210 may be equal to the number of light-emitting areas 110. For example, when the display panel 100 includes four light-emitting areas 110, the light-emitting control module 200 may include four light-emitting control circuits 210, and each light-emitting control circuit 210 is used to control one light-emitting area 110 to emit light.

[0041] In the case of high-brightness display, compared to a single light-emitting control circuit 210 controlling the display area of the entire display panel 100, the embodiment of the present application uses multiple light-emitting control circuits 210 to control the entire display panel 100, which can reduce the driving current of a single light-emitting control circuit 210 and reduce the voltage drop caused by the impedance of the peripheral driving wiring. In addition, the embodiment of the present application uses a single light-emitting control circuit 210 to control a single light-emitting area 110 in the display panel 100, which can reduce the size of the area through which the driving current flows and reduce the voltage drop caused by the in-plane wiring impedance. Based on this, the embodiment of the present application can reduce the thermal power consumption of the display device and improve the image uniformity of the display panel 100, providing users with a better display effect and user experience.

[0042] The driving module 300 is used to provide a lighting control signal to the lighting control module 200. The driving module 300 can be a peripheral driving board. Among them, the lighting control module 200 includes multiple lighting control circuits 210, and the lighting control signals provided by the driving module 300 to the multiple lighting control circuits 210 can be the same, or different, or partially the same and partially different, and the embodiments of the present application do not limit this. Since the lighting control signal is used to control lighting, such as controlling whether to emit light and / or controlling the brightness of the light, the lighting control signal provided to each lighting control circuit 210 can be determined based on whether a sub-screen is displayed in each lighting area 110 and the brightness of the displayed sub-screen. For other introductions and explanations of the lighting control signal, please refer to the following embodiments, which will not be elaborated here.

[0043] In the embodiment of the present application, the driving module 300 and the light control module 200 may be directly connected or indirectly connected. Taking the indirect connection between the driving module 300 and the light control module 200 as an example, in some embodiments, such as Figure 1 As shown, the display device further includes a rotating plate 400, which is connected to the driving module 300 and the light control module 200. The rotating plate 400 is used to transmit the light control signal output by the driving module 300 to the light control module 200. In addition, the rotating plate 400 can also provide support functions. Since the screen display also requires data signals, in some embodiments, such as Figure 1 As shown, the display device further includes a data control circuit 500 connected to the display panel 100 and the transfer plate 400. The data control circuit 500 is used to provide data signals to the display panel 100. In some embodiments, the data control circuit 500 includes a chip-on-flexible circuit, or COF.

[0044] In summary, the display device provided by the embodiment of the present application has a display panel divided into multiple light-emitting areas, and the driving module provides a light-emitting control signal to the light-emitting control module, so that the multiple light-emitting control circuits in the light-emitting control module control the multiple light-emitting areas according to the light-emitting control signal. In the case of high-brightness display, compared with the display area of the entire display panel being controlled by one light-emitting control circuit, the embodiment of the present application controls the entire display panel by multiple light-emitting control circuits, which can reduce the driving current of one light-emitting control circuit, and the voltage drop caused by the impedance of the peripheral driving wiring will be reduced. In addition, the embodiment of the present application controls one light-emitting area in the display panel by one light-emitting control circuit, which can reduce the size of the area through which the driving current flows, and the voltage drop caused by the impedance of the in-plane wiring will be reduced. Based on this, the embodiment of the present application can reduce the thermal power consumption of the display device and improve the picture uniformity of the display panel, providing users with better display effects and usage experience.

[0045] In some embodiments, multiple sub-pictures in a frame are simultaneously displayed in multiple light-emitting areas 110. By displaying multiple sub-pictures simultaneously in multiple light-emitting areas 110, the picture displayed on the display panel 100 can be a complete frame at any display time, providing a smooth visual experience for the user.

[0046] Because each light-emitting area 110 is controlled by a light-emitting control circuit 210, in order to display multiple sub-images simultaneously in multiple light-emitting areas 110, multiple light-emitting control circuits 210 in the light-emitting control module 200 need to simultaneously control multiple light-emitting areas 110, and the driver module 300 needs to simultaneously provide light-emitting control signals to the multiple light-emitting control circuits 210. Therefore, the driver module 300 needs to provide a relatively large driving current.

[0047] See also Figure 6 , Figure 6 Schematic diagram of another display device provided in an embodiment of the present application. To reduce the difficulty of development, in some embodiments, such as Figure 6 As shown, the driver module 300 may include multiple driver circuits 310, each of which is configured to provide a light control signal to a light control circuit 210 in the light control module 200. In some embodiments, the driver circuit 310 includes a power management integrated circuit (Power IC). This reduces the required drive current for a single driver circuit 310, making it compatible with existing driver circuits without the need to develop or find a driver circuit capable of providing a high current. At any given display moment, the multiple driver circuits 310 each provide a light control signal to their corresponding light control circuit 210, so that each of the multiple light control circuits 210 controls the corresponding light-emitting area 110 according to the light control signal.

[0048] For example, Figure 6 As shown, the display panel 100 includes four light-emitting areas 110, namely light-emitting area 1, light-emitting area 2, light-emitting area 3, and light-emitting area 4; the light-emitting control module 200 includes four light-emitting control circuits 210, namely light-emitting control circuit 1, light-emitting control circuit 2, light-emitting control circuit 3, and light-emitting control circuit 4; and the driving module 300 includes four driving circuits 310, namely driving circuit 1, driving circuit 2, driving circuit 3, and driving circuit 4. Driver circuit 1 provides light-emitting control signal 1 to light-emitting control circuit 1, so that light-emitting control circuit 1 controls light-emitting area 1 to emit light according to light-emitting control signal 1; driver circuit 2 provides light-emitting control signal 2 to light-emitting control circuit 2, so that light-emitting control circuit 2 controls light-emitting area 2 to emit light according to light-emitting control signal 2; driver circuit 3 provides light-emitting control signal 3 to light-emitting control circuit 3, so that light-emitting control circuit 3 controls light-emitting area 3 to emit light according to light-emitting control signal 3; and driver circuit 4 provides light-emitting control signal 4 to light-emitting control circuit 4, so that light-emitting control circuit 4 controls light-emitting area 4 to emit light according to light-emitting control signal 4.

[0049] It should be understood that Figure 6 In the illustrated display device, the multiple driver circuits 310 are independent of each other, and thus the light control signals provided by the multiple driver circuits 310 are also independent of each other. Other signals required for display, such as data drive signals, scan control signals, and / or power signals, can be integrated. Because the multiple driver circuits 310 independently provide light control signals, there will be certain differences between the multiple light control signals. Based on the power supply differences of the multiple driver circuits 310, brightness and color point compensation, such as demura compensation, can be performed on the multiple light-emitting areas 110 to ensure uniform brightness across the multiple light-emitting areas 110.

[0050] In summary, the display device provided in the embodiments of the present application comprises a driver module comprising multiple driver circuits, each driver circuit being configured to provide a light control signal to a light control circuit. At any given display moment, the multiple driver circuits simultaneously provide light control signals to their respective corresponding light control circuits, so that the multiple light control circuits simultaneously control their respective light-emitting regions according to the light control signals, thereby allowing the multiple light-emitting regions to simultaneously display multiple sub-images. This allows the image displayed on the display panel at any given display moment to be a complete frame, providing the user with a smooth visual experience. Furthermore, in the embodiments of the present application, the multiple driver circuits independently control the multiple light control circuits, reducing the drive current required by a single driver circuit and enabling compatibility with existing driver circuits without the need to develop or search for driver circuits that provide high currents.

[0051] In some embodiments, multiple sub-images within a frame are time-sharedly displayed in multiple light-emitting regions 110. Time-shared display refers to displaying only a portion of the sub-images at a given moment, such as displaying only one sub-image at a given moment, with multiple sub-images not displayed simultaneously. By time-sharedly displaying multiple sub-images within a frame, only a portion of the light-emitting regions 110 are required to display normally at any given moment. Consequently, only a portion of the light-emitting control circuits 210 are required to properly control the corresponding light-emitting regions 110, thereby reducing the drive current of the driver module 300.

[0052] To prevent the luminous regions 110 not currently displaying a sub-picture from interfering with the luminous regions 110 displaying a sub-picture, the luminous regions 110 not currently displaying a sub-picture can be set to display a black screen. For example, in some embodiments, when one luminous region 110 in the display panel 100 displays the corresponding sub-picture, the remaining luminous regions 110 in the display panel 100 display a black screen.

[0053] See also Figure 7 , Figure 7 This is a schematic diagram of a time-sharing display of a screen provided by an embodiment of the present application. Figure 7 As shown, a frame is split into multiple sub-pictures, which are displayed in multiple light-emitting areas 110 in the display panel 100. At a display moment, only one light-emitting area 110 displays the corresponding sub-picture, while the remaining light-emitting areas 110 display a black picture. The embodiment of the present application does not limit the display order of multiple sub-pictures, and in actual application, it can be flexibly set according to needs. For example, Figure 7 As shown, the plurality of sub-pictures may be displayed in their respective corresponding light-emitting areas 110 in the order of sub-picture 3, sub-picture 4, sub-picture 1 and sub-picture 2.

[0054] The time-sharing display of multiple sub-images is based on the persistence of vision effect of the human eye, merging multiple sub-images into a complete frame. Therefore, the switching frequency between multiple sub-images should be greater than the switching frequency between two frames. In some embodiments, multiple frames can be refreshed and displayed on the display panel 100 at a first frequency; during the display of a frame, the multiple sub-images within the frame can be refreshed and displayed on the display panel 100 at a second frequency, where the second frequency is greater than the first frequency.

[0055] To further ensure the complete display of a frame, all sub-pictures of the frame need to be displayed before the frame switches to the next frame. Based on this, in some embodiments, taking a frame including n sub-pictures as an example, where n is a positive integer, the second frequency is n times the first frequency. For example, a frame is divided into 4 sub-pictures. If the first frequency on which the multi-frame refresh display is based is 30Hz, the second frequency on which the multiple sub-pictures are refreshed is 120Hz; if the first frequency on which the multi-frame refresh display is based is 60Hz, the second frequency on which the multiple sub-pictures are refreshed is 240Hz. The higher the refresh frequency of the multi-frame and the multiple sub-pictures, the higher the smoothness of the picture.

[0056] Because a frame is split into multiple sub-frames, and these sub-frames are displayed in a time-sharing manner, at a given display moment, some of the light-emitting control circuits 210 in the light-emitting control module 200 need to control their corresponding light-emitting areas 110 to display the corresponding sub-frames. Therefore, the driver module 300 needs to provide normal light-emitting control signals to some of the light-emitting control circuits 210, while not providing light-emitting control signals to the remaining light-emitting control circuits 210, or providing light-emitting control signals required for a black screen display. Therefore, the driver module 300 does not need to provide a large drive current for time-sharing drive, and can use existing driver circuits.

[0057] See also Figure 8 , Figure 8 Schematic diagram of another display device provided in an embodiment of the present application. Figure 8 As shown, the driver module 300 includes a driver circuit 310, which is used to provide lighting control signals to multiple lighting control circuits 210 in the lighting control module 200. In some embodiments, the driver circuit 310 includes a power management integrated circuit (PowerIC). At a display time, the driver circuit 310 provides a first lighting control signal to one lighting control circuit 210 in the lighting control module 200 and provides a second lighting control signal to the remaining lighting control circuits 210 in the lighting control module 200. The first lighting control signal is used to control the corresponding lighting area 110 to display a sub-image, and the second lighting control signal is used to control the corresponding lighting area 110 to display a black image.

[0058] For example, Figure 8 As shown, the display panel 100 includes four light-emitting areas 110, namely light-emitting area 1, light-emitting area 2, light-emitting area 3 and light-emitting area 4; the light-emitting control module 200 includes four light-emitting control circuits 210, namely light-emitting control circuit 1, light-emitting control circuit 2, light-emitting control circuit 3 and light-emitting control circuit 4; the driving module 300 includes one driving circuit 310. Taking the sub-picture currently displayed by light-emitting area 1 as an example, the driving circuit 310 provides the first light-emitting control signal to the light-emitting control circuit 1, so that the light-emitting area 1 displays the sub-picture; and the driving circuit 310 provides the second light-emitting control signal to the light-emitting control circuit 2, the light-emitting control circuit 3 and the light-emitting control circuit 4, so that the light-emitting area 2, the light-emitting area 3 and the light-emitting area 4 display a black picture. It should be understood that in Figure 8 In the display device shown, other signals required for picture display, such as data drive signals, scan control signals and / or power supply signals, etc., can be integrated.

[0059] In summary, the technical solution provided by the embodiment of the present application is that multiple sub-pictures in a frame are displayed in a plurality of light-emitting areas in a time-sharing manner, and based on the persistence of vision effect of the human eye, the multiple sub-pictures are merged into a complete frame. At any display moment, some of the light-emitting control circuits in the light-emitting control module need to control their corresponding light-emitting areas to display corresponding sub-pictures. The driving module needs to provide light-emitting control signals to some of the light-emitting control circuits normally, while the remaining light-emitting control circuits may not provide light-emitting control signals or provide light-emitting control signals required for black screen display. Based on this, since the driving current required for black screen display is zero, the driving module does not need to provide a large driving current based on the time-sharing driving of the screen. The overall current required to be provided by the driving module can be reduced at any display moment. The driving module only needs one driving circuit to realize the driving function, and the existing driving circuit can be directly used.

[0060] It should be noted that the technical solution of the time-sharing driving of the screen provided in the embodiment of the present application can also be executed alone without being combined with the partition driving architecture. In the case of time-sharing driving based only on the screen, although the light control module 200 can also include multiple light control circuits 210, the display panel 100 does not obtain multiple light-emitting areas 110 based on physical division, that is, the display panel 100 is controlled as a whole, and multiple light control circuits 210 control the display panel 100 at the same time. In the case of time-sharing driving based only on the screen, since only part of the sub-screen is displayed at a display moment and the rest of the screen is inserted into a black screen, the overall brightness of the screen at a display moment is reduced, and the driving current required to be provided by the driving module 300 will also be reduced, which can also achieve the reduction of thermal power consumption of the display device and improve the screen uniformity of the display panel.

[0061] In addition, the embodiments of the present application do not limit the specific type of display device. For example, the display device can be implemented as any one of the following: OLED display, Micro LED display, Mini LED (Miniature Light Emitting Diode), LCD, AMOLED (Active Matrix Organic Light Emitting Diode), etc.

[0062] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0063] The above is a detailed introduction to a display device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display device, characterized in that: The display device comprises: a display panel (100), a light emitting control module (200) connected to the display panel (100), and a driving module (300) connected to the light emitting control module (200); wherein, The display panel (100) comprises a plurality of light-emitting areas (110), and a plurality of sub-pictures in a frame are respectively displayed in the plurality of light-emitting areas (110); The light emitting control module (200) comprises a plurality of light emitting control circuits (210), each of the light emitting control circuits (210) being used to control one of the light emitting areas (110) in the display panel (100) according to a light emitting control signal; The driving module (300) is used to provide the lighting control signal to the lighting control module (200).

2. The display device according to claim 1, wherein The plurality of sub-pictures in one frame of the picture are displayed simultaneously in the plurality of the light-emitting areas (110).

3. The display device according to claim 2, wherein: The driving module (300) comprises a plurality of driving circuits (310), each of the driving circuits (310) being used to provide the lighting control signal to one of the lighting control circuits (210) in the lighting control module (200); wherein, At a display moment, the plurality of driving circuits (310) each provide the light-emitting control signal to the light-emitting control circuit (210) corresponding to each of them, so that the plurality of light-emitting control circuits (210) each control the light-emitting area (110) corresponding to each of them according to the light-emitting control signal.

4. The display device according to claim 1, wherein The plurality of sub-pictures in one frame of the picture are respectively displayed in a plurality of the light-emitting areas (110) in a time-sharing manner.

5. The display device according to claim 4, wherein: When one of the light-emitting areas (110) in the display panel (100) displays the corresponding sub-image, the remaining light-emitting areas (110) in the display panel (100) display a black image.

6. The display device according to claim 5, wherein: The driving module (300) comprises a driving circuit (310), and the driving circuit (310) is used to provide the lighting control signal to the plurality of lighting control circuits (210) in the lighting control module (200); wherein, At a display moment, the driving circuit (310) provides a first light control signal to one of the light control circuits (210) in the light control module (200), and provides a second light control signal to the remaining light control circuits (210) in the light control module (200); the first light control signal is used to control the corresponding light emitting area (110) to display the sub-picture, and the second light control signal is used to control the corresponding light emitting area (110) to display the black picture.

7. The display device according to claim 4, wherein: Multiple frames of the picture are refreshed and displayed on the display panel (100) at a first frequency; During the display process of a frame of the picture, a plurality of sub-pictures in the picture are refreshed and displayed on the display panel (100) at a second frequency; The second frequency is greater than the first frequency.

8. The display device according to claim 7, wherein: One frame of the picture includes n sub-pictures, where n is a positive integer; The second frequency is n times the first frequency.

9. The display device according to claim 3 or 6, characterized in that: The driving circuit (310) includes a power management integrated circuit.

10. The display device according to claim 1, wherein The light emitting control circuit (210) comprises a flexible printed circuit.

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