Display panel and display device
The modular design of the OLED display panel enables the pixel modules to be detachable and repairable, solving the problem of the difficulty in repairing damaged pixels in existing OLED display panels and improving the lifespan and response speed of the display panel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HKC CORP LTD
- Filing Date
- 2023-12-27
- Publication Date
- 2026-06-12
Smart Images
Figure CN118098147B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of display technology, and more particularly to a display panel and a display device. Background Technology
[0002] With the rapid development of display technology, OLED display technology has emerged and become one of the most popular technologies. Organic Light Emitting Diode (OLED) display panels feature self-illumination, high contrast, wide viewing angle, and high response speed. Their working principle involves using ITO (Indium Tin Oxide) transparent electrodes and metal electrodes as the anode and cathode, respectively. Under a certain voltage, electrons and holes are injected from the cathode and anode into the electron transport layer and hole transport layer, respectively. The electrons and holes then migrate through the electron transport layer and hole transport layer to the light-emitting layer, where they meet, forming excitons and exciting the molecules in the light-emitting layer, emitting visible light.
[0003] However, due to the limited lifespan of the light-emitting materials, current OLED display panels have shortcomings in both lifespan and brightness. Currently, multiple pixels in a display panel are mounted on the same substrate. If one or more pixels are damaged, repairing the display panel is extremely difficult. Therefore, reducing the difficulty of repairing display panels has become a pressing technical problem that needs to be solved by those skilled in the art. Summary of the Invention
[0004] The purpose of this application is to provide a display panel and display device that reduces the difficulty of repairing the display panel and extends its service life by using a modular pixel design.
[0005] This application discloses a display panel including multiple pixel modules, each pixel module having multiple sub-pixels; each of the multiple pixel modules is provided with a pixel driving circuit, which drives the pixel module to emit light and display; the pixel driving circuit includes a communication module and a control module, the communication module being used to receive external data signals and control the pixel module to emit light and display according to the external data signals through the control module; the multiple pixel modules are detachably mounted on a carrier plate of the display panel.
[0006] Optionally, the communication module includes a wireless receiving module, which receives external data signals and generates data control signals based on the external signals, transmitting them to the control module; each pixel driving circuit further includes multiple pixel driving transistors, and the control module controls the control terminal voltages of the multiple pixel driving transistors based on the data control signals.
[0007] Optionally, multiple sub-pixels on each pixel module constitute a pixel unit; the multiple sub-pixels include a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit; wherein the light-emitting area of the blue light-emitting unit is larger than the light-emitting area of the red light-emitting unit, and the light-emitting area of the blue light-emitting unit is larger than the light-emitting area of the green light-emitting unit.
[0008] Optionally, the ratio of the luminous area of the blue luminous unit, the luminous area of the green luminous unit, and the luminous area of the red luminous unit is 2:1:1.
[0009] Optionally, the display panel also includes a carrier plate, on which a power interface is provided for each pixel module, and a power input port is provided on the pixel module, wherein the power input port is detachably connected to the power interface.
[0010] Optionally, each pixel module is bonded to the carrier plate with photosensitive adhesive.
[0011] Optionally, in each pixel driving circuit, a plurality of pixel driving transistors are stacked, and the control module and the wireless receiving module are respectively disposed on both sides of the pixel driving transistors.
[0012] Optionally, the plurality of pixel modules are numbered; the display panel further includes a supply circuit layer disposed on the carrier plate, the supply circuit layer being provided with a wireless transmission module, the supply circuit layer being used to provide power to the power interface and to provide external data signals to the wireless transmission module, the wireless transmission module being used to send the external data signals to the wireless receiving modules of the plurality of pixel modules respectively.
[0013] Optionally, multiple sub-pixels on each pixel module constitute multiple pixel units; the multiple sub-pixels include at least two red light-emitting units, at least two green light-emitting units, and at least two blue light-emitting units; wherein the light-emitting area of the blue light-emitting unit is larger than the light-emitting area of the red light-emitting unit, and the light-emitting area of the blue light-emitting unit is larger than the light-emitting area of the green light-emitting unit.
[0014] This application discloses a display device, including a driver circuit board and the aforementioned display panel, wherein the driver circuit board is used to drive the display panel to display.
[0015] This application proposes a novel display panel that utilizes multiple independent pixel modules for assembly. This modular design incorporates one or more pixel units. Firstly, when customers require different sizes, the application adjusts the number of pixel modules to achieve the desired size. Secondly, during manufacturing or repair, if some pixel modules are found to be damaged, they can be directly replaced, enabling panel repair and reducing user costs. Furthermore, each pixel module in this application can be driven independently, exchanging information and controlling the drive circuit board via a communication and control module. During installation, there is no need to consider the display panel's wiring and scanning drive circuitry, thereby improving the display panel's response speed and enhancing display screen response time. Attached Figure Description
[0016] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0017] Figure 1 This is a schematic diagram of the display panel of this application;
[0018] Figure 2 This is a cross-sectional schematic diagram of the display panel of this application;
[0019] Figure 3 This is a schematic diagram of the pixel module of this application;
[0020] Figure 4 This is a schematic diagram of the pixel arrangement of the pixel module according to the second embodiment of this application;
[0021] Figure 5 This is a schematic diagram of the pixel arrangement of the pixel module according to the third embodiment of this application;
[0022] Figure 6 yes Figure 5 A schematic diagram of a display panel composed of multiple pixel modules;
[0023] Figure 7 yes Figure 5 A schematic diagram of the cross-section cut along AA;
[0024] Figure 8 This is a schematic diagram of the display device of this application.
[0025] Among them, 10 is the display panel; 100 is the pixel module; 110 is the sub-pixel; R is the red light-emitting unit; G is the green light-emitting unit; B is the blue light-emitting unit; B1 is the first blue light-emitting unit; B2 is the second blue light-emitting unit; B3 is the third blue light-emitting unit; 111 is the isolation pillar; 112 is the cathode; 113 is the electron injection layer; 114 is the electron transport layer; 115 is the light-emitting layer; 116 is the hole transport layer; 117 is the hole injection layer; 118 is the anode; and 121 is the communication module. 122. Control module; 123. Power input port; 124. Pixel driver transistor; 130. Carrier plate; 131. Power interface; 141. Data processing chip protective layer; 142. Data processing chip; 143. Planarization layer; 144. Control center chip protective layer; 145. Control center chip; 146. Control center circuit layer; 147. Substrate layer; 148. Supply circuit layer; 149. WIFI receiver chip; 200. Display device; 210. Driver circuit board. Detailed Implementation
[0026] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.
[0027] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. Furthermore, terms indicating orientation or positional relationships, such as "upper," "lower," "left," "right," "vertical," and "horizontal," are described based on the orientation or relative positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description of this application, not indicating that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0028] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.
[0029] Figure 1 This is a schematic diagram of the display panel of this application. Figure 2 This is a cross-sectional schematic diagram of the display panel of this application, see below. Figure 1-2As shown, this application discloses a display panel 10, which includes a plurality of pixel modules 100, each pixel module 100 having a plurality of sub-pixels 110; each of the plurality of pixel modules 100 is provided with a pixel driving circuit, which drives the pixel module 100 to emit light and display; the pixel driving circuit includes a communication module 121 and a control module 122, the communication module 121 being used to receive external data signals and control the pixel module 100 to emit light and display according to the external data signals through the control module 122; the plurality of pixel modules 100 are detachably mounted on a carrier plate 130 of the display panel 10.
[0030] This application proposes a novel display panel 10, which is assembled using multiple independent pixel modules 100. This modular design utilizes one or more pixel units of the display panel 10. On one hand, when customers require different sizes, this application can achieve the desired size by increasing or decreasing the number of pixel modules 100. On the other hand, if some pixel modules 100 are found to be damaged during manufacturing or repair, they can be directly replaced, enabling repair of the display panel 10 and reducing user costs. Furthermore, each pixel module 100 in this application can be driven independently, exchanging information and controlling the drive circuit board via a communication module 121 and a control module 122. During installation, there is no need to consider the wiring and scanning drive circuit of the display panel 10, thereby improving the response speed of the display panel 10 and increasing the display screen response time.
[0031] The external data signals described in this application are generally signals obtained by the processor after decoding image or video data, and can be transmitted through a communication module.
[0032] Specifically, each pixel module 100 has multiple sub-pixels 110 that constitute a pixel unit; the multiple sub-pixels 110 include a red light-emitting unit R, a green light-emitting unit G, and a blue light-emitting unit B.
[0033] In this embodiment, each pixel module 100 has only one pixel unit. One pixel unit includes a red sub-pixel 110, a green sub-pixel 110, and a blue sub-pixel 110. By adjusting different grayscale voltages, any color can be displayed through the three different colored sub-pixels 110. This is equivalent to each pixel unit on the display panel 10 forming a modular unit, and the display panel 10 displays information through a series of modular pixel modules 100.
[0034] Specifically, the display panel 10 also includes an encapsulation layer disposed on the light-emitting unit layer. A color filter layer is disposed on the encapsulation layer, comprising a black matrix and multiple color filters of different colors, specifically red, blue, and green filters, each corresponding to a different color light-emitting unit. This design, which replaces the polarizer with a color filter, is called a POL-less design. The transmittance of the color filter can reach up to 60%, significantly increasing the emitted light brightness, thereby reducing the power consumption of the OLED device and improving its lifespan. Through the color filter process, R, G, and B color filters are deposited. To prevent color crosstalk between different colors, a black matrix (BM) is placed between different color filters to absorb colored light at the edges of the color filter. Therefore, these color filters are separated by the black matrix (BM).
[0035] Figure 3 This is a schematic diagram of the pixel module of this application, see [link / reference]. Figure 3 As shown, within a pixel module 100, the light-emitting area of the blue light-emitting unit B is greater than the light-emitting area of the red light-emitting unit R, and the light-emitting area of the blue light-emitting unit is greater than the light-emitting area of the green light-emitting unit G.
[0036] This solution is based on two main considerations. Firstly, the blue light-emitting unit emits blue light, which has the shortest wavelength. In practice, the luminous efficiency of the blue light-emitting unit B is lower than that of the red light-emitting unit R and the green light-emitting unit G, resulting in weaker blue light compared to red and green light. Secondly, the blue light-emitting unit B ages rapidly, easily leading to inaccurate brightness due to aging. Therefore, in this application, the area of the blue light-emitting unit B is set to be larger than the areas of the red light-emitting unit R and the green light-emitting unit G.
[0037] Specifically, the ratio of the luminous area of the blue luminous unit B, the luminous area of the green luminous unit G, and the luminous area of the red luminous unit R is 2:1:1.
[0038] In another embodiment, a pixel module 100 contains two blue light-emitting units B, one red light-emitting unit R, and one green light-emitting unit G. Each light-emitting unit is of equal size. Specifically, the blue light-emitting units B can be placed diagonally, and the lines connecting two blue light-emitting units B in adjacent pixel modules 100 are not parallel. In this scheme, each light-emitting unit is formed using a film layer process, and isolation pillars 111 are formed between each light-emitting unit to separate them. Each color light-emitting unit can be controlled independently and can display different grayscale levels. By placing the two blue light-emitting units B diagonally, the light from the blue light-emitting units B is more evenly distributed within the pixel module 100.
[0039] Specifically, the blue light-emitting unit B, the green light-emitting unit G, and the red light-emitting unit R are arranged in the same layer, and a pixel driving transistor layer 124 is arranged below the light-emitting units. The pixel driving transistor layer 124 includes three thin-film transistors, which are used to drive the blue light-emitting unit B, the green light-emitting unit G, and the red light-emitting unit R, respectively. Among them, the two blue light-emitting units B can be driven by the same thin-film transistor, or they can be driven by two thin-film transistors respectively.
[0040] Figure 4 This is a schematic diagram of the pixel arrangement of the pixel module according to the second embodiment of this application. See also: Figure 4 As shown, a pixel module 100 is provided with a red light-emitting unit R, a green light-emitting unit G, and at least two blue light-emitting units B of different sizes. The two blue light-emitting units B have different light-emitting areas and are located in different positions, namely the first blue light-emitting unit B1 and the second blue light-emitting unit B2.
[0041] See Figure 4 As shown, red light-emitting unit R and green light-emitting unit G are respectively disposed in the middle area. Taking the red light-emitting unit R and green light-emitting unit G as a rhombus shape, two first blue light-emitting units B1 are disposed, one between the red light-emitting unit R and the other between the green light-emitting unit G. The sum of the areas of the two first blue light-emitting units B1 is equal to the light-emitting area of one red light-emitting unit R or the light-emitting area of one green light-emitting unit G. Second blue light-emitting units B2 are disposed around the red light-emitting unit R and the green light-emitting unit G, forming a plurality of blue light-emitting units B surrounding the red light-emitting unit R and the green light-emitting unit G.
[0042] Based on the calculation of the actual luminous area, it can be seen that the ratio of the effective luminous area of the blue luminous unit B to the luminous area of the green luminous unit G and the luminous area of the red luminous unit R remains 2:1:1. However, it is understandable that this application can design the blue luminous unit B according to the actual situation, so that the ratio of the effective luminous area of the blue luminous unit B can be selected between 1 and 3.
[0043] In this solution, new sub-pixels 110 are formed by blue light-emitting units B and adjacent blue light-emitting units B between pixel modules 100, achieving seamless connection between adjacent pixel modules 100. Specifically, at the corner positions of pixel modules 100, a blue sub-pixel 110 is formed by two second blue light-emitting units B2 positioned at the corner positions of four adjacent pixel modules 100. At the edge positions of pixel modules 100, a blue sub-pixel 110 is formed by two second blue light-emitting units B2 positioned at the edge positions of adjacent pixel modules 100. This achieves pixel splicing between pixel modules 100, and because the area of the blue light-emitting unit B is large, the impact of splicing on the blue light-emitting unit B is small, thereby improving the display effect of the display panel 10. It is understood that the sub-pixel 110 described in this application refers to three sub-pixels 110 of different colors forming one pixel.
[0044] Of course, based on this embodiment, replacing the blue light-emitting unit B with the red light-emitting unit R and the green light-emitting unit G, and setting them at the edge or corner of the pixel module 100 to form a red sub-pixel 110 or a green sub-pixel 110, should also fall within the protection scope of this application.
[0045] It is understood that in this embodiment, the first blue light-emitting unit B1 and the second blue light-emitting unit B2 are driven by different pixel driving transistors 124, and the multiple first blue light-emitting units B1 or multiple second blue light-emitting units B2 that make up a blue sub-pixel 110 are controlled by the same data signal. Of course, in another embodiment, all blue light-emitting units B in a pixel module 100 can also be driven by a single pixel driving transistor 124.
[0046] In this embodiment, the encapsulation of each light-emitting unit can be achieved using dammed adhesive and filler adhesive, or by using glass glue, or by using thin-film encapsulation technology. Thin-film encapsulation can employ a stacked design of inorganic film layers, organic film layers, and inorganic film layers to form a thin-film encapsulation.
[0047] Figure 5 This is a schematic diagram of the pixel arrangement of the pixel module according to the third embodiment of this application. Figure 6 yes Figure 5 A schematic diagram of a display panel composed of multiple pixel modules, see [link / reference]. Figure 5-6 As shown, the multiple sub-pixels 110 include at least two red light-emitting units R, at least two green light-emitting units G, and at least two blue light-emitting units B.
[0048] In this embodiment, a pixel includes multiple sub-pixels 110, and the red light-emitting unit R and the green light-emitting unit G are rhomboid in shape. The blue light-emitting unit B includes at least a third blue light-emitting unit B3, a fourth blue light-emitting unit B, and a fifth blue light-emitting unit B. The third blue light-emitting unit B3 is rhomboid in shape, the light-emitting area of the fourth blue light-emitting unit B is smaller than that of the third blue light-emitting unit B3, and the light-emitting area of the fifth blue light-emitting unit B is smaller than that of the fourth blue light-emitting unit B. The third blue light-emitting unit B3 is disposed between two red light-emitting units R and two green light-emitting units G, the fourth blue light-emitting unit B is disposed at the edge of the pixel module 100, and the fifth blue light-emitting unit B is disposed at a corner of the pixel module 100.
[0049] Among them, the sum of the luminous areas of the blue luminous units B is greater than the sum of the luminous areas of the red luminous units R, and the sum of the luminous areas of the blue luminous units is greater than the sum of the luminous areas of the green luminous units G.
[0050] In this scheme, two red light-emitting units R, two green light-emitting units G, and multiple blue light-emitting units B constitute one pixel. By adopting a uniform arrangement, bright and dark lines caused by splicing multiple pixel modules 100 are avoided, and the displayed colors are more saturated. Furthermore, the pixel distribution with a 1:1:2 area ratio of red sub-pixels 110, green sub-pixels 110, and blue sub-pixels 110 reduces the current of the blue light-emitting units B, thereby extending their lifespan. Additionally, each pixel module 100 can be detected and replaced.
[0051] In another embodiment, the multiple sub-pixels 110 on each pixel module 100 respectively constitute multiple pixel units; in this embodiment, each pixel module 100 may be provided with multiple pixels, each pixel including three sub-pixels 110, and at least two pixels are provided on the same pixel module 100. Data signal transmission between multiple pixels can be carried out in a time-division control manner.
[0052] The luminous area of the blue luminous unit B is larger than that of the red luminous unit R, and the luminous area of the blue luminous unit is larger than that of the green luminous unit G.
[0053] In this embodiment, multiple pixels can be set on a single pixel module 100, and these multiple pixels can be independently controlled and displayed. This solution primarily considers a larger display panel 10. If each pixel module 100 only has one pixel, a large number of pixel modules 100 would be required. However, when a single pixel module 100 has multiple pixels, the required number of pixel modules 100 is significantly reduced.
[0054] Figure 7 yes Figure 5 See the schematic diagram of the cross-section cut along AA. Figure 7 As shown, each light-emitting unit includes a cathode 112, an electron injection layer 113, an electron transport layer 114, a light-emitting layer 115, a hole transport layer 116, a hole injection layer 117, and an anode 118. Light-emitting units of different colors have light-emitting layers of different colors. In this embodiment, multiple blue light-emitting units B are connected and controlled through the same pixel driver transistor 124.
[0055] Specifically, each pixel module 100 is also provided with a pixel driving transistor 124, which is located below the light-emitting unit. The drain of the pixel driving transistor 124 is connected to the anode of the corresponding light-emitting unit through a via, and the light-emitting unit is controlled by the pixel driving transistor 124.
[0056] Specifically, the communication module 121 includes a wireless receiving module, which receives external data signals and generates data control signals based on the external signals, transmitting them to the control module 122. In this solution, the specific communication method can be wireless communication. For example, an external wireless transmitting module and a wireless receiving module can be configured to cooperate. Taking a Wi-Fi module as an example, it includes at least multiple Wi-Fi receiving modules and one Wi-Fi transmitting module. Each pixel module has at least one Wi-Fi receiving module, and each pixel module 100 uses a Wi-Fi module network to receive the aforementioned external data signals through the wireless receiving module. Of course, in addition to a one-to-many wireless transmission method, multiple Wi-Fi transmitting modules can also be used to transmit data in a one-to-one manner. Each pixel driving circuit also includes multiple pixel driving transistors 124, and the control module 122 controls the control terminal voltages of the multiple pixel driving transistors 124 according to the data control signals.
[0057] The control module comprises, in sequence from top to bottom, a data processing chip protective layer 141, a data processing chip 142, a planarization layer 143, a control center chip protective layer 144, and a control center chip 145. Below the control center chip is a control center circuit layer 146, and on the same layer as the control center circuit layer is a WiFi receiver chip 149 (wireless receiver module) from the WiFi module. This structure is disposed on a substrate layer 147.
[0058] In another embodiment, multiple pixel driving transistors 124 are stacked within each pixel driving circuit to save space. The control module and the wireless receiving module are respectively disposed on both sides of the pixel driving transistor 124. It is understood that the WiFi module of this application can be disposed on a substrate, which can be selected as a flexible substrate or the like.
[0059] Specifically, the display panel 10 also includes a carrier plate 130, on which a power interface 131 is provided for each pixel module 100, and a power input port 123 is provided on each pixel module 100. The power input port 123 is detachably connected to the power interface 131. It can be understood that the power supply for the WiFi module and the control module is also provided by the carrier plate 130.
[0060] Specifically, each pixel module 100 is provided with a power input port 123, which is connected to the power interface 131 on the carrier board 130. This embodiment provides a specific method where pins on the pixel module 100 serve as the power input port 123, and pads on the carrier board 130 serve as the power interface 131. The pins and pads are connected by anisotropic conductive adhesive, which can be achieved through a bonding method. Specifically, each pixel module 100 can be assembled into a board using modules, and the power connection is achieved through bonding operations using clamping blocks. Correspondingly, a supply circuit layer 148 is provided on the carrier board 130, which contains circuitry and pads.
[0061] In one specific implementation of this solution, holes are drilled in the substrate, and the power input port 123 provided on each pixel module 100 is connected to the back side of the substrate through a conductive layer, forming bonding pins on the back side of the substrate, thereby bonding it to the carrier plate 130.
[0062] In another embodiment, since each pixel module 100 only needs a power signal, other signals such as TFT turn-on signals and data signals are transmitted by the control module and the WiFi module, respectively. Therefore, a circuit mesh structure can be set on the carrier plate 130, with the power input ports 123 of multiple pixel modules 100 connected to the circuit mesh structure to provide power to each pixel module 100. Data transmission of the display panel 10's driving circuit board is achieved by bonding at the edge of the carrier plate 130.
[0063] The display panel 10 further includes a supply circuit layer disposed on the carrier plate 130. A wireless transmission module is disposed on the supply circuit layer. The supply circuit layer provides power to the power interface and provides external data signals to the wireless transmission module. The wireless transmission module transmits the external data signals to the wireless receiving modules of the plurality of pixel modules respectively. The supply circuit layer includes a wireless transmission module (which may be one or more Wi-Fi transmission modules) for transmitting data signals from the plurality of pixel modules 100 to their corresponding wireless receiving modules.
[0064] Specifically, each of the pixel modules 100 is numbered. In this solution, a detection module can be used to detect the luminous brightness of each pixel module 100. When the luminous brightness of a pixel module 100 is found to be below expectations, an alarm is triggered, and the pixel module 100's number is identified, allowing for its replacement. In another embodiment, the detection module can be integrated into the display panel 10. Each time the display panel 10 is powered on and off, the luminous brightness of each pixel module 100 is detected using a preset screen, such as a grayscale screen. If a pixel module 100 has a problem, it can be directly replaced during after-sales repair.
[0065] It is understood that the substrate of each pixel module 100 mentioned above is independently set, and each pixel module 100 substrate is bonded to the carrier plate 130 with photosensitive adhesive. During removal, acetone can be sprayed from a spray nozzle to dissolve the photosensitive adhesive, thereby detaching the pixel module 100 from the carrier plate 130. After replacing with a new pixel module 100, the photosensitive adhesive is reapplied to fix the pixel module 100 to the carrier plate 130.
[0066] Figure 8 This is a schematic diagram of the display device of this application, see [link / reference]. Figure 8 As shown, this application discloses a display device. The display device 200 includes a driving circuit board 210 and the aforementioned display panel 10, wherein the driving circuit board 210 is used to drive the display panel 10 to display.
[0067] The display device of this application uses a WiFi module networking method, and the control module directly drives the received image data signal, which can improve the screen response time. Furthermore, by replacing the pixel modules 100, the lifespan of the display panel 10 can be extended, improving its repairability and achieving lower costs. Specifically, multiple independent pixel modules 100 are used to assemble the display panel 10. This involves modularizing one or more pixel units of the display panel 10. On the one hand, when customers require different sizes, this application can achieve the desired size by increasing or decreasing the number of pixel modules 100. On the other hand, if some pixel modules 100 are found to be damaged during manufacturing or repair, they can be directly replaced, enabling repair of the display panel 10 and reducing user costs. Furthermore, each pixel module 100 in this application can be driven independently, and information exchange and control are performed with the drive circuit board through the communication module 121 and the control module 122. During installation, there is no need to consider the wiring and scanning drive circuit of the display panel 10, which can improve the response speed of the display panel 10 and increase the response time of the display screen.
[0068] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.
[0069] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.
Claims
1. A display panel, characterized in that, It includes multiple pixel modules, and each pixel module is provided with multiple sub-pixels: Each of the plurality of pixel modules is provided with a pixel driving circuit, and the pixel driving circuit drives the pixel module to emit light for display. The pixel driving circuit includes a communication module and a control module. The communication module is used to receive external data signals and control the pixel module to emit light and display according to the external data signals through the control module. Multiple pixel modules are detachably mounted on the support plate of the display panel; Each pixel module has multiple sub-pixels that constitute a pixel unit; Within one pixel module, multiple sub-pixels include at least one red light-emitting unit, at least one green light-emitting unit, and at least one blue light-emitting unit; Within each pixel module, the red light-emitting unit and the green light-emitting unit are respectively disposed in the middle area, and the blue light-emitting unit is disposed around the red light-emitting unit and the green light-emitting unit. The blue light-emitting unit is disposed at the edge or corner position of the pixel module. At the edge position of the pixel module, between two adjacent pixel modules, a blue sub-pixel is formed by blue light-emitting units located at the edge position of the two adjacent pixel modules; Alternatively, at the corner position of the pixel module, between four adjacent pixel modules, a blue sub-pixel is formed by blue light-emitting units located at the corner positions of the four adjacent pixel modules; In each pixel module, the ratio of the sum of the light-emitting areas of the multiple blue light-emitting units, the sum of the light-emitting areas of the multiple green light-emitting units, and the sum of the light-emitting areas of the multiple red light-emitting units is 2:1:
1. The light-emitting area of the blue light-emitting unit located at the edge or corner of the pixel module is smaller than the area of a red light-emitting unit or a green light-emitting unit. At the edge position of two adjacent pixel modules, the light-emitting area of a blue sub-pixel composed of two blue light-emitting units is equal to the light-emitting area of a red light-emitting unit or the light-emitting area of a green light-emitting unit. At the corner positions of four adjacent pixel modules, the light-emitting area of a blue sub-pixel composed of four blue light-emitting units is equal to the light-emitting area of a red light-emitting unit or the light-emitting area of a green light-emitting unit.
2. The display panel according to claim 1, characterized in that, The communication module includes a wireless receiving module, which is used to receive external data signals and generate data control signals based on the external data signals and transmit them to the control module. Each pixel driving circuit further includes multiple pixel driving transistors, and the control module controls the control terminal voltage of the multiple pixel driving transistors according to the data control signal.
3. The display panel according to claim 1, characterized in that, The carrier plate is provided with a power interface for each pixel module, and the pixel module is provided with a power input port, which is detachably connected to the power interface.
4. The display panel according to claim 3, characterized in that, Each pixel module is bonded to the carrier plate with photosensitive adhesive.
5. The display panel according to claim 2, characterized in that, In each pixel driving circuit, a plurality of pixel driving transistors are stacked, and the control module and the wireless receiving module are respectively disposed on both sides of the pixel driving transistors.
6. The display panel according to claim 3, characterized in that, The pixel modules are numbered. The display panel also includes a supply circuit layer disposed on the carrier plate. A wireless transmission module is disposed on the supply circuit layer. The supply circuit layer is used to provide power to the power interface and to provide external data signals to the wireless transmission module. The wireless transmission module is used to send the external data signals to the wireless receiving modules of the multiple pixel modules respectively.
7. The display panel according to claim 1, characterized in that, The multiple sub-pixels on each pixel module constitute multiple pixel units; Multiple sub-pixels include at least two red light-emitting units, at least two green light-emitting units, and at least two blue light-emitting units; The light-emitting area of the blue light-emitting unit is larger than that of the red light-emitting unit, and the light-emitting area of the blue light-emitting unit is larger than that of the green light-emitting unit.
8. The display panel according to claim 1, characterized in that, The light-emitting surfaces of the red light-emitting unit and the green light-emitting unit are both rhomboid. At the edge positions of two adjacent pixel modules, the light-emitting surfaces of the two blue light-emitting units are triangular, forming a blue sub-pixel that is rhomboid; At the corner positions of the four adjacent pixel modules, the light-emitting surfaces of the four blue light-emitting units are triangular, forming a blue sub-pixel that is rhomboid.
9. A display device, characterized in that, The device includes a driving circuit board and a display panel as described in any one of claims 1-8, wherein the driving circuit board is used to drive the display panel to display.