Display mother board, display panel, lighting test method and electronic equipment

Abstract

The invention discloses a display mother board, display panels, a lighting test method and electronic equipment, the display mother board comprises a plurality of display panels, each display panel comprises a plurality of light-emitting units, and the arrangement sequences of the light-emitting units between at least two display panels are different; the display panel further comprises a plurality of switching devices, a plurality of driving signal test terminals and a plurality of control signal test terminals, and the driving signal test terminals and the control signal test terminals in each display panel are arranged in the same order. Under the condition that the arrangement sequences of the driving signal test terminals and the control signal test terminals in each display panel are the same, the same test equipment and flow can still be adopted even if display panels with different arrangement sequences of various light-emitting units exist in one display mother board; unified lighting test is carried out on each display panel through the driving signal test terminals and the control signal test terminals, and the test cost is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of display devices, and particularly relates to a display mother board, a display panel, a lighting test method, and an electronic device. Background Art

[0002] Currently, flat panel display devices based on technologies such as Organic Light Emitting Display (OLED) and Light Emitting Diode (LED) are widely used because of their advantages such as high picture quality, power saving, thin body, and wide application range, and have become the mainstream in display devices.

[0003] In the preparation process of traditional display panels, the light-emitting pixel patterning is usually achieved through a Fine Mask Mask (FMM). The FMM technology is mature and has rich mass production experience. However, the FMM technology also has problems such as limited precision, high development cost, and long development cycle. The maskless technology eliminates the limitations of traditional OLED processes on the display screen size, resolution, and other screen body performances, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN117580403A, CN118678743A, CN118660490A, CN118678724A, CN118678806A, CN118742084A, CN118946184A record the relevant content of the maskless technology for reference.

[0004] During the manufacturing process of a display device, the display panel of the display device usually needs to be subjected to a lighting test to determine whether there are defects in the display panel. However, currently, only multiple display panels with the same pixel arrangement can be simultaneously subjected to a lighting test through a single lighting test device, and the test efficiency is relatively low. Summary of the Invention

[0005] The purpose of this application is to provide a display mother board, a display panel, a lighting test method, and an electronic device to solve the problems existing in the prior art.

[0006] In a first aspect of the embodiments of the present application, a display motherboard is provided, which includes a plurality of display panels. The display panels include a plurality of light-emitting units, and the arrangement order of the light-emitting units between at least two of the display panels is different; the display panels further include a plurality of switching devices, a plurality of drive signal test terminals, and a plurality of control signal test terminals. The arrangement order of each of the drive signal test terminals and each of the control signal test terminals in each display panel is the same; the light-emitting unit is connected to the drive signal test terminal through at least one of the switching devices, and the light-emitting units of the same light-emitting color are all connected to the same drive signal test terminal; the control ends of the switching devices connected to the light-emitting units of the same light-emitting color are all connected to the same control signal test terminal.

[0007] In one embodiment, the plurality of light-emitting units include a plurality of first light-emitting units, a plurality of second light-emitting units, and a plurality of third light-emitting units, and the light-emitting colors of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit are different from each other.

[0008] In one embodiment, the light-emitting color of the first light-emitting unit is red, the light-emitting color of the second light-emitting unit is green, and the light-emitting color of the third light-emitting unit is blue.

[0009] In one embodiment, the light-emitting units in at least one of the display panels are arranged in a cyclic and spaced manner in a first direction in the order of the first light-emitting unit, the second light-emitting unit, and the third light-emitting unit; and the light-emitting units in at least one of the display panels are arranged in a cyclic and spaced manner in the first direction in the order of the second light-emitting unit, the first light-emitting unit, and the third light-emitting unit.

[0010] In one embodiment, in at least one of the display panels, the light-emitting colors of the light-emitting units arranged at intervals in a second direction are the same, and they are all connected to the corresponding switching devices through the same data trace.

[0011] In one embodiment, the multiple switching devices include multiple first switching devices, multiple second switching devices, and multiple third switching devices. A first end of the first switching device is connected to the corresponding first light-emitting unit, a second end of the first switching device is connected to the drive signal test terminal, and a control end of the first switching device is connected to the control signal test terminal. A first end of the second switching device is connected to the corresponding second light-emitting unit, a second end of the second switching device is connected to the drive signal test terminal, and a control end of the second switching device is connected to the control signal test terminal. A first end of the third switching device is connected to the corresponding third light-emitting unit, a second end of the third switching device is connected to the drive signal test terminal, and a control end of the third switching device is connected to the control signal test terminal.

[0012] In one embodiment, the multiple drive signal test terminals include a first drive signal test terminal, a second drive signal test terminal, and a third drive signal test terminal. The first drive signal test terminal is connected to each of the first light-emitting units through each of the first switching devices, the second drive signal test terminal is connected to each of the second light-emitting units through each of the second switching devices, and the third drive signal test terminal is connected to each of the third light-emitting units through each of the third switching devices.

[0013] In one embodiment, the multiple control signal test terminals include a first control signal test terminal, a second control signal test terminal, and a third control signal test terminal. The control ends of all the first switching devices are connected to the first control signal test terminal, the control ends of all the second switching devices are connected to the second control signal test terminal, and the control ends of all the third switching devices are connected to the third control signal test terminal.

[0014] A second aspect of the embodiments of the present application provides a display panel formed by preparing the display mother board as described above. The display panel includes multiple light-emitting units, multiple switching devices, multiple drive signal test terminals, and multiple control signal test terminals. The light-emitting units are connected to the drive signal test terminals through the switching devices, and the light-emitting units of the same light-emitting color are all connected to the same drive signal test terminal. The control ends of the switching devices connected to the light-emitting units of the same light-emitting color are all connected to the same control signal test terminal.

[0015] In one embodiment, the display panel further includes: a substrate, on which the switching devices, the drive signal test terminals, and the control signal test terminals are all arranged; an isolation structure, which is arranged on the substrate and is provided with multiple isolation openings, and at least part of the light-emitting units are located in the isolation openings.

[0016] In one embodiment, the isolation structure includes a first sub-isolation layer and a second sub-isolation layer that are sequentially stacked on the substrate in a direction away from the substrate. The orthographic projection of the first sub-isolation layer on the substrate is located within the orthographic projection of the second sub-isolation layer on the substrate.

[0017] In one embodiment, the light-emitting unit includes a light-emitting layer, a first electrode, and a second electrode. In a direction away from the substrate, the first electrode, the light-emitting layer, and the second electrode are sequentially stacked, and the second electrode is electrically connected to the isolation structure.

[0018] In one embodiment, the substrate includes a display area and a non-display area. The light-emitting units are all disposed in the display area, and the drive signal test terminals and the control signal test terminals are all disposed in the non-display area.

[0019] In one embodiment, the display panel is prepared by a yellow photolithography process.

[0020] In a third aspect of the embodiments of the present application, a lighting test method for a display panel is provided, which is applied to the display panel as described above. The lighting test method includes: simultaneously performing a lighting test on a plurality of the display panels through a lighting test device; wherein, the lighting test device includes a plurality of test ports for outputting test signals to the display panel, and the probe layout of each test port is the same.

[0021] In a fourth aspect of the embodiments of the present application, an electronic device is provided. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the lighting test method for the display panel as described above is implemented.

[0022] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: When the arrangement orders of the respective drive signal test terminals and the respective control signal test terminals in each display panel are the same, even if there are display panels with different arrangement orders of multiple light-emitting units in a display mother board, the same test device and process can still be used to perform a unified lighting test on each display panel through the drive signal test terminals and the respective control signal test terminals, reducing the test cost. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a display mother board provided by an embodiment of the present application; Figure 2 It is another schematic structural diagram of a display mother board provided by an embodiment of the present application; Figure 3Schematic structural diagram of a display panel provided by an embodiment of the present application; Figure 4 Cross-sectional schematic diagram of a display panel provided by an embodiment of the present application; Figure 5 Schematic structural diagram of a lighting test device provided by an embodiment of the present application; Figure 6 Waveform diagram of a test signal provided by an embodiment of the present application; Figure 7 Schematic diagram of an electronic device provided by an embodiment of the present application.

[0024] Description of reference numerals: 10, display mother board; 20, lighting test device; 21, test port; 22, signal output terminal; 30, electronic device; 31, memory; 32, processor; 33, computer program; 100a, first display panel; 100b, second display panel; 110, light-emitting unit; 111, first light-emitting unit; 112, second light-emitting unit; 113, third light-emitting unit; 120, drive signal test terminal; 121, first drive signal test terminal; 122, second drive signal test terminal; 123, third drive signal test terminal; 130, control signal test terminal; 131, first control signal test terminal; 132, second control signal test terminal; 133, third control signal test terminal; 200, substrate; 300, isolation structure; 310, first sub-isolation layer; 320, second sub-isolation layer; 410, light-emitting layer; 420, first electrode; 430, second electrode. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0029] During the manufacturing process of a display panel, the display panel usually needs to be subjected to a lighting test to determine whether there are defects in the display panel.

[0030] However, if the display panel does not match the test signal, there may be a situation where a qualified display panel cannot display the correct image and emission color according to the test signal.

[0031] Figure 1 The structural schematic diagram of a display mother board provided by an embodiment of the present application is shown. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows: A display mother board 10 includes a plurality of display panels ( Figure 1 Two display panels are shown, namely a first display panel 100a and a second display panel 100b), and the display panel includes a plurality of light-emitting units 110, and the arrangement order of the light-emitting units 110 between at least two display panels is different.

[0032] It can be understood that when a plurality of display panels need to be manufactured, in order to improve the manufacturing speed of the display panel and reduce the manufacturing cost of the display panel, the display mother board 10 can be first constructed, and then one display mother board 10 can be divided into a plurality of display panels by cutting.

[0033] The different arrangement order of the light-emitting units 110 specifically refers to the different relative positional relationships between the light-emitting units 110 of different emission colors.

[0034] The display panel further includes a plurality of switching devices (exemplarily, the first display panel 100a includes switching devices S1 to S6, and the second display panel 100b includes switching devices S7 to S12), a plurality of driving signal test terminals 120, and a plurality of control signal test terminals 130. The arrangement order of the respective driving signal test terminals 120 and the respective control signal test terminals 130 in each display panel is the same.

[0035] The light-emitting unit 110 is connected to the driving signal test terminal 120 through at least one switching device, and the light-emitting units 110 of the same light-emitting color are all connected to the same driving signal test terminal 120.

[0036] The control ends of the switching devices connected to the light-emitting units 110 of the same light-emitting color are all connected to the same control signal test terminal 130.

[0037] When the arrangement order of the respective driving signal test terminals 120 and the respective control signal test terminals 130 in each display panel is the same, even if there are display panels with different arrangement orders of a plurality of light-emitting units 110 in one display mother board 10, the same test equipment and process can still be used to perform a unified lighting test on each display panel through the driving signal test terminals 120 and the respective control signal test terminals 130, reducing the test cost.

[0038] The driving signal test terminal 120 can be used to receive the driving signal provided by the test equipment, and the control signal test terminal 130 can be used to receive the control signal provided by the test equipment. The control signal can be used for the conduction and cut-off of the corresponding switching device. When the switching device is conducting, the driving signal received by the driving signal test terminal 120 can be transmitted to the corresponding light-emitting unit 110 to drive the light-emitting unit 110 to emit light.

[0039] When the light-emitting units 110 of the same light-emitting color are all connected to the same driving signal test terminal 120, and the control ends of the switching devices connected to the light-emitting units 110 of the same light-emitting color are all connected to the same control signal test terminal 130, all the light-emitting units 110 of the corresponding light-emitting color can be controlled to light up simultaneously through one driving signal test terminal 120 and one control signal test terminal 130, so as to realize the test of all the light-emitting units 110 of this light-emitting color.

[0040] Specifically, both the driving signal test terminal 120 and the control signal test terminal 130 can include pads.

[0041] It can be understood that the number of the driving signal test terminals 120 and the number of the control signal test terminals 130 are both equal to the number of colors of the light-emitting colors of all the light-emitting units 110 in one display panel.

[0042] When the light-emitting unit 110 is connected to the driving signal test terminal 120 through a plurality of sequentially connected switching devices in series, the switching devices connected in series between the light-emitting unit 110 and the driving signal test terminal 120 can be regarded as being directly or indirectly connected to the light-emitting unit 110. Therefore, the control terminals of the switching devices connected in series between the light-emitting unit 110 and the driving signal test terminal 120 are also connected to the same control signal test terminal 130.

[0043] In some embodiments, as Figure 1 shown, the switching devices S1~S12 are all P-type thin film transistors. It should be noted that the specific type of the switching device can be set according to actual needs. For example, in other embodiments, the switching device can also be an N-type thin film transistor.

[0044] In one embodiment, taking the first display panel 100a as shown in Figure 2 as an example, the plurality of light-emitting units 110 include a plurality of first light-emitting units 111, a plurality of second light-emitting units 112, and a plurality of third light-emitting units 113, and the light-emitting colors of the first light-emitting units 111, the second light-emitting units 112, and the third light-emitting units 113 are different from each other.

[0045] It can be understood that the specific number of light-emitting units 110 with different light-emitting colors included in a display panel and the specific light-emitting units 110 with which light-emitting colors can be specifically set according to actual needs.

[0046] In the case of having three light-emitting units 110, three driving signal test terminals 120 and three control signal test terminals 130 are correspondingly provided in a display panel.

[0047] In some embodiments, the light-emitting color of the first light-emitting unit 111 is red, the light-emitting color of the second light-emitting unit 112 is green, and the light-emitting color of the third light-emitting unit 113 is blue.

[0048] It can be understood that red, green, and blue are the three most common light-emitting colors of a display panel. By respectively controlling the brightness of the first light-emitting unit 111, the second light-emitting unit 112, and the third light-emitting unit 113, and mixing the lights of the three colors in a certain proportion, the display panel can display a variety of colors.

[0049] In one embodiment, taking the first display panel 100a as shown in Figure 2 as an example, for each light-emitting unit 110 in at least one display panel, they are sequentially arranged at intervals in a cycle along the first direction in the order of the first light-emitting unit 111, the second light-emitting unit 112, and the third light-emitting unit 113.

[0050] As shown inFigure 2 Taking the second display panel 100b shown as an example, and for each light-emitting unit 110 in at least one display panel, the second light-emitting unit 112, the first light-emitting unit 111, and the third light-emitting unit 113 are sequentially arranged in a cyclic and spaced manner along the first direction in turn.

[0051] One first light-emitting unit 111, one second light-emitting unit 112, and one third light-emitting unit 113 can form a pixel unit. In the display panel, multiple pixel units are sequentially arranged at intervals along the first direction. In different display panels, the arrangement order of the light-emitting units 110 within the pixel unit can be set according to actual requirements.

[0052] In the case where the first light-emitting unit 111, the second light-emitting unit 112, and the third light-emitting unit 113 are sequentially arranged in a cyclic and spaced manner along the first direction, it can be understood that the three light-emitting units 110 in the pixel unit also are sequentially arranged at intervals along the first direction in the order of the first light-emitting unit 111, the second light-emitting unit 112, and the third light-emitting unit 113.

[0053] In one embodiment, taking the first display panel 100a shown as Figure 3 an example, in at least one display panel, the light-emitting colors of each light-emitting unit 110 sequentially arranged at intervals in the second direction are the same, and all are connected to the corresponding switching device through the same data trace.

[0054] It can be understood that the light-emitting units 110 sequentially arranged at intervals in the second direction can be the light-emitting units 110 in different pixel units.

[0055] The second direction can be perpendicular to the first direction. The light-emitting units 110 sequentially arranged at intervals in the first direction are the light-emitting units 110 in the same row, and the light-emitting units 110 sequentially arranged at intervals in the second direction are the light-emitting units 110 in the same column. The display panel can include multiple rows of light-emitting units 110 and multiple columns of light-emitting units 110. The light-emitting colors of the light-emitting units 110 in the same column can be the same.

[0056] In the case where the light-emitting units 110 of the same light-emitting color in the same column are connected to the corresponding switching device through the same data trace, multiple light-emitting units 110 can share one switching device, thereby significantly reducing the number of switching devices.

[0057] In one embodiment, taking the first display panel 100a shown as Figure 3 an example, multiple switching devices include multiple first switching devices ( Figure 3 the first switching device S1 and the first switching device S4 are shown), multiple second switching devices ( Figure 3shows the second switching device S2 and the second switching device S5), and a plurality of third switching devices ( Figure 3 shows the third switching device S3 and the third switching device S6). The first end of the first switching device is connected to the corresponding first light-emitting unit 111, the second end of the first switching device is connected to the drive signal test terminal 120, and the control end of the first switching device is connected to the control signal test terminal 130.

[0058] The first end of the second switching device is connected to the corresponding second light-emitting unit 112, the second end of the second switching device is connected to the drive signal test terminal 120, and the control end of the second switching device is connected to the control signal test terminal 130.

[0059] The first end of the third switching device is connected to the corresponding third light-emitting unit 113, the second end of the third switching device is connected to the drive signal test terminal 120, and the control end of the third switching device is connected to the control signal test terminal 130.

[0060] Wherein, the number of the first switching devices, the number of the second switching devices, and the number of the third switching devices are specifically related to the number of the first light-emitting units 111, the number of the second light-emitting units 112, the number of the third light-emitting units 113, and the connection manner between the light-emitting units 110 and the switching devices.

[0061] For example, in the case where the light-emitting units 110 of the same light-emitting color in the same column are connected to the corresponding switching devices through the same data trace, the number of the first switching devices required is at least the same as the number of columns of the first light-emitting units 111, the number of the second switching devices required is at least the same as the number of columns of the second light-emitting units 112, and the number of the third switching devices required is at least the same as the number of columns of the third light-emitting units 113.

[0062] In one embodiment, taking the first display panel 100a as shown in Figure 3 as an example, the plurality of drive signal test terminals 120 include a first drive signal test terminal 121, a second drive signal test terminal 122, and a third drive signal test terminal 123.

[0063] The first drive signal test terminal 121 is respectively connected to each of the first light-emitting units 111 through each of the first switching devices, the second drive signal test terminal 122 is connected to each of the second light-emitting units 112 through each of the second switching devices, and the third drive signal test terminal 123 is connected to each of the third light-emitting units 113 through each of the third switching devices.

[0064] It can be understood that the specific number of drive signal test terminals 120 is equal to the number of colors of the light-emitting colors of all the light-emitting units 110 in a display panel. When the display panel has a first light-emitting unit 111, a second light-emitting unit 112, and a third light-emitting unit 113 (i.e., the light-emitting units 110 having three light-emitting colors), three drive signal test terminals 120 (i.e., a first drive signal test terminal 121, a second drive signal test terminal 122, and a third drive signal test terminal 123) should be provided accordingly.

[0065] The first drive signal test terminal 121 is used to obtain a first drive signal from an external test device and provide the first drive signal to each of the first light-emitting units 111 in the display panel. The second drive signal test terminal 122 is used to obtain a second drive signal from an external test device and provide the second drive signal to each of the second light-emitting units 112 in the display panel. The third drive signal test terminal 123 is used to obtain a third drive signal from an external test device and provide the third drive signal to each of the third light-emitting units 113 in the display panel.

[0066] The drive signal can light up the corresponding light-emitting unit 110.

[0067] In one embodiment, taking the first display panel 100a as shown in Figure 3 as an example, the multiple control signal test terminals 130 include a first control signal test terminal 131, a second control signal test terminal 132, and a third control signal test terminal 133.

[0068] Each first switch device control end is connected to the first control signal test terminal 131, each second switch device control end is connected to the second control signal test terminal 132, and each third switch device control end is connected to the third control signal test terminal 133.

[0069] It can be understood that the specific number of control signal test terminals 130 is equal to the number of colors of the light-emitting colors of all the light-emitting units 110 in a display panel. When the display panel has a first light-emitting unit 111, a second light-emitting unit 112, and a third light-emitting unit 113 (i.e., the light-emitting units 110 having three light-emitting colors), three control signal test terminals 130 (i.e., a first control signal test terminal 131, a second control signal test terminal 132, and a third control signal test terminal 133) should be provided accordingly.

[0070] Exemplarily, taking as shown in Figure 3Taking the first display panel 100a shown as an example, two columns of first light-emitting units 111 are respectively connected to a first driving signal test terminal 121 through a first switching device S1 and a first switching device S4, and the control terminals of the first switching device S1 and the first switching device S4 are both connected to a first control signal test terminal 131. Two columns of second light-emitting units 112 are respectively connected to a second driving signal test terminal 122 through a second switching device S2 and a second switching device S5, and the control terminals of the second switching device S2 and the second switching device S5 are both connected to a second control signal test terminal 132. Two columns of third light-emitting units 113 are respectively connected to a third driving signal test terminal 123 through a third switching device S3 and a third switching device S6, and the control terminals of the third switching device S3 and the third switching device S6 are both connected to a third control signal test terminal 133.

[0071] Figure 3 FIG. shows a schematic structural diagram of a display panel provided by an embodiment of the present application. For the sake of convenience of description, only the parts related to this embodiment are shown and are described in detail as follows: A display panel can be formed by manufacturing the display mother board 10 of any of the above embodiments. Specifically, the display panel of this embodiment can be obtained by dividing the display mother board 10 of any of the above embodiments.

[0072] Taking the Figure 3 first display panel 100a shown as an example, the display panel includes a plurality of light-emitting units 110, a plurality of switching devices, a plurality of driving signal test terminals 120, and a plurality of control signal test terminals 130.

[0073] The light-emitting unit 110 is connected to the driving signal test terminal 120 through a switching device, and the light-emitting units 110 of the same light-emitting color are all connected to the same driving signal test terminal 120.

[0074] The control terminals of the switching devices connected to the light-emitting units 110 of the same light-emitting color are all connected to the same control signal test terminal 130.

[0075] Since the arrangement orders of the driving signal test terminals 120 and the control signal test terminals 130 of each display panel obtained by dividing a display mother board 10 are the same, therefore, each display panel can still use the same test equipment and process to uniformly test each display panel through the driving signal test terminals 120 and the control signal test terminals 130, reducing the test cost.

[0076] In one embodiment, taking the Figure 4 first display panel 100a shown as an example, the display panel further includes: a substrate 200 and an isolation structure 300.

[0077] The switching device, the driving signal test terminal 120, and the control signal test terminal 130 can all be disposed on the substrate 200.

[0078] The isolation structure 300 is disposed on the substrate 200 and is provided with a plurality of isolation openings, and at least a part of the light-emitting units 110 are located within the isolation openings.

[0079] Wherein the substrate 200 can be an array substrate 200. The isolation structure 300 can be a partition structure for partitioning the evaporation materials of the light-emitting units 110. The isolation structure 300 can be a metal layer or a metal oxide layer. In some embodiments, the isolation structure 300 can be a single-layer structure or a stacked structure.

[0080] Specifically, when both the driving signal test terminal 120 and the control signal test terminal 130 are pads, the driving signal test terminal 120 and the control signal test terminal 130 can be disposed on the surface of the substrate 200.

[0081] The switching device can specifically be a thin-film transistor constructed within the substrate 200. Between the switching device and the light-emitting unit 110, between the switching device and the driving signal test terminal 120, and the control signal test terminal 130, conductive traces disposed within the substrate 200 or on the surface of the substrate 200 can be respectively used for connection.

[0082] In one embodiment, the isolation structure 300 includes a first sub-isolation layer 310 and a second sub-isolation layer 320 that are sequentially stacked on the substrate 200 in a direction away from the substrate 200. The orthographic projection of the first sub-isolation layer 310 on the substrate 200 is located within the orthographic projection of the second sub-isolation layer 320 on the substrate 200.

[0083] By controlling the size relationship between the first sub-isolation layer 310 and the second sub-isolation layer 320, the independence between the isolation openings can be improved, and when filling the light-emitting material to construct the light-emitting units 110, the light-emitting units 110 can be prevented from sticking to each other.

[0084] In one embodiment, the light-emitting unit 110 includes a light-emitting layer 410, a first electrode 420, and a second electrode 430. In a direction away from the substrate 200, the first electrode 420, the light-emitting layer 410, and the second electrode 430 are sequentially stacked, and the second electrode 430 is electrically connected to the isolation structure 300.

[0085] The first electrode 420 and the second electrode 430 can be connected to a related driving circuit to apply a driving voltage to the light-emitting layer 410 to drive the light-emitting layer 410 to emit light.

[0086] Specifically, the first electrode 420 can be directly connected to the circuit within the substrate 200, and the second electrode 430 can be overlapped on the isolation structure 300 and obtain the corresponding voltage from the isolation structure 300.

[0087] Exemplarily, the isolation structure 300 can be used to provide a ground voltage (i.e., a negative voltage). The first electrode 420 can obtain a driving voltage (driving signal) from the circuit within the substrate 200.

[0088] In one embodiment, the substrate 200 includes a display area and a non-display area. The light-emitting units 110 are all disposed in the display area, and the driving signal test terminals 120 and the control signal test terminals 130 are all disposed in the non-display area.

[0089] Specifically, the display area may include a plurality of mutually parallel data traces. One data trace is used to connect to the light-emitting units 110 of one color among the light-emitting units 110 in the same column / same row. For example, one data trace can be connected to the red light-emitting units 110 among the pixel points in the same column.

[0090] It can be understood that when the arrangement design information of the light-emitting units 110 of the display panel changes, the arrangement of the data traces and the connection between the data traces and the respective light-emitting units 110 will also change accordingly.

[0091] In one embodiment, the display panel is prepared by a yellow photolithography process.

[0092] Compared with the traditional Fine Metal Mask (FMM) process, on the basis of using the isolation structure 300 for isolation, by removing the organic material in the form of yellow light after evaporating the light-emitting material, a flexible layout method can be achieved, and the colors and arrangements of the light-emitting units 110 in each display panel can be configured more flexibly on a display mother board 10.

[0093] An embodiment of the present application also provides a lighting test method for a display panel. The lighting test method includes: simultaneously performing a lighting test on a plurality of display panels through a lighting test device 20.

[0094] Among them, as Figure 5 shown, the lighting test device 20 includes a plurality of test ports 21 for outputting test signals to the display panel, and the signal output terminals 22 of each test port 21 have the same layout. Specifically, a probe can be used as the signal output terminal 22.

[0095] It can be understood that one display panel can be connected to one test port 21, and through the test port 21, a waveform such as Figure 6The three driving signals and three control signals shown, wherein the three driving signals include a first driving signal R, a second driving signal G, and a third driving signal B, and the three control signals include a first control signal SW1, a second control signal SW2, and a first control signal SW3.

[0096] Optionally, the first control signal SW1, the second control signal SW2, and the first control signal SW3 may be the same clock signal to periodically turn on each switching device. The first driving signal R, the second driving signal G, and the third driving signal B may, according to actual requirements, provide a valid level pulse (such as a low level) when the switching device is turned on to control each first light-emitting unit 111, each second light-emitting unit 112, and each third light-emitting unit 113 to be sequentially lit in sequence to complete the lighting test.

[0097] When the signal output terminals 22 of each test port 21 have the same layout, even if the arrangement of the light-emitting units 110 of each display panel is different, such as the arrangement of the signal test terminals of the display panel in any of the above embodiments is also the same, so that the lighting test device 20 can simultaneously perform lighting tests on multiple display panels with different arrangements of light-emitting units 110, thereby avoiding using an adapter circuit or performing lighting tests on multiple display panels in batches.

[0098] Figure 7 The figure shows a schematic diagram of an electronic device provided by an embodiment of the present application. For the convenience of description, only the parts related to this embodiment are shown and are described in detail as follows: An electronic device 30 includes a memory 31, a processor 32, and a computer program 33 stored in the memory 31 and executable on the processor 32. When the processor 32 executes the computer program 33, it implements the lighting test method of the display panel in any of the above embodiments.

[0099] The so-called processor 32 may be a central processing unit (CPU), and the processor 32 may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0100] The memory 31 can be an internal storage unit of the electronic device 30 in some embodiments, such as the hard disk or memory of the electronic device 30. The memory 31 can also be an external storage device of the electronic device 30 in other embodiments, such as a plug-in hard disk equipped on the electronic device 30, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. Further, the memory 31 can also include both the internal storage unit and the external storage device of the electronic device 30. The memory 31 is used to store an operating system, application programs, a BootLoader, data, and other programs, such as the program code of the computer program 33. The memory 31 can also be used to temporarily store the data that has been output or will be output.

[0101] It should be understood that the sequence numbers of the steps in the above embodiments do not mean 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 to the implementation process of the embodiments of the present application.

[0102] Through the description of the above embodiments, those skilled in the art can understand that, for the convenience and conciseness of description, only the division of the above function modules is used as an example. In practical applications, the above functions can be allocated to different function modules according to needs, that is, the internal structure of the device is divided into different function modules to complete all or part of the functions described above.

[0103] It should be understood that the devices and methods disclosed in several embodiments provided by the present application can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another device. In addition, some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical or other form.

[0104] The units described as separate components can be physically separated or not. The components displayed as units can be a physical unit or multiple physical units. That is, they can be located in one place, or can also be distributed to multiple different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the present solution.

[0105] In addition, each functional unit in the various embodiments of the present application may be integrated into one processing unit; may also exist physically alone; or some units may be integrated into one unit while some units exist physically alone. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software functional units.

[0106] It should be noted that all or part (for example, part or all of any feature) of the above-mentioned various embodiments provided in the present application may be arbitrarily combined or used in combination with each other.

[0107] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A display motherboard, characterized in that: The device comprises a plurality of display panels, each of which comprises a plurality of light-emitting units, and the arrangement order of the light-emitting units between at least two of the display panels is different; The display panel further comprises a plurality of switch devices, a plurality of drive signal test terminals and a plurality of control signal test terminals, and the arrangement order of the drive signal test terminals and the control signal test terminals in each of the display panels is the same; The light-emitting unit is connected to the driving signal test terminal through at least one of the switching devices, and the light-emitting units of the same light-emitting color are all connected to the same driving signal test terminal; The control ends of the switch devices connected to the light-emitting units of the same light-emitting color are all connected to the same control signal test terminal.

2. The display motherboard according to claim 1, characterized in that: The plurality of light emitting units include a plurality of first light emitting units, a plurality of second light emitting units, and a plurality of third light emitting units, and the light emitting colors of the first light emitting units, the second light emitting units, and the third light emitting units are different from each other.

3. The display motherboard according to claim 2, characterized in that: The light emitting color of the first light emitting unit is red, the light emitting color of the second light emitting unit is green, and the light emitting color of the third light emitting unit is blue.

4. The display motherboard according to claim 2, characterized in that: The light-emitting units in at least one of the display panels are sequentially and cyclically arranged in the order of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit along the first direction; Furthermore, the light emitting units in at least one of the display panels are arranged in a cyclical manner along the first direction in the order of the second light emitting unit, the first light emitting unit and the third light emitting unit.

5. The display motherboard according to claim 2, characterized in that: In at least one of the display panels, the light-emitting units sequentially arranged in a spaced relationship in the second direction all emit light of the same color, and are all connected to the corresponding switch devices through the same data wiring.

6. The display motherboard according to any one of claims 2 to 5, characterized in that: The plurality of switch devices include a plurality of first switch devices, a plurality of second switch devices and a plurality of third switch devices, wherein a first end of the first switch device is connected to the corresponding first light-emitting unit, a second end of the first switch device is connected to the drive signal test terminal, and a control end of the first switch device is connected to the control signal test terminal; A first end of the second switch device is connected to the corresponding second light-emitting unit, a second end of the second switch device is connected to the drive signal test terminal, and a control end of the second switch device is connected to the control signal test terminal; The first end of the third switch device is connected to the corresponding third light emitting unit, the second end of the third switch device is connected to the driving signal test terminal, and the control end of the third switch device is connected to the control signal test terminal.

7. The display motherboard according to claim 6, characterized in that: The plurality of drive signal test terminals include a first drive signal test terminal, a second drive signal test terminal and a third drive signal test terminal; The first drive signal test terminal is connected to each of the first light-emitting units through each of the first switch devices, the second drive signal test terminal is connected to each of the second light-emitting units through each of the second switch devices, and the third drive signal test terminal is connected to each of the third light-emitting units through each of the third switch devices.

8. The display motherboard according to claim 6, characterized in that: The plurality of control signal test terminals include a first control signal test terminal, a second control signal test terminal and a third control signal test terminal; Each of the first switch device control terminals is connected to the first control signal test terminal, each of the second switch device control terminals is connected to the second control signal test terminal, and each of the third switch device control terminals is connected to the third control signal test terminal.

9. A display panel, characterized in that: The display panel is prepared by the display motherboard according to any one of claims 1 to 8, wherein the display panel comprises a plurality of light-emitting units, a plurality of switching devices, a plurality of drive signal test terminals and a plurality of control signal test terminals; The light-emitting unit is connected to the driving signal test terminal through the switching device, and the light-emitting units of the same light-emitting color are all connected to the same driving signal test terminal; The control ends of the switch devices connected to the light-emitting units of the same light-emitting color are all connected to the same control signal test terminal.

10. The display panel according to claim 9, wherein: The display panel further includes: A substrate, on which the switch device, the drive signal test terminal and the control signal test terminal are all arranged; The isolation structure is arranged on the substrate and has a plurality of isolation openings, and at least part of the light emitting units are located in the isolation openings.

11. The display panel according to claim 10, wherein: The isolation structure includes a first sub-isolation layer and a second sub-isolation layer sequentially stacked on the substrate in a direction away from the substrate, and an orthographic projection of the first sub-isolation layer on the substrate is located within an orthographic projection of the second sub-isolation layer on the substrate.

12. The display panel according to claim 10, wherein: The light-emitting unit includes a light-emitting layer, a first electrode and a second electrode. In a direction away from the substrate, the first electrode, the light-emitting layer and the second electrode are stacked in sequence, and the second electrode is electrically connected to the isolation structure.

13. The display panel according to claim 10, wherein: The substrate comprises a display area and a non-display area, the light emitting units are all arranged in the display area, and the driving signal test terminal and the control signal test terminal are all arranged in the non-display area.

14. The display panel according to claim 10, wherein: The display panel is prepared by using a yellow light etching process.

15. A lighting test method for a display panel, characterized in that: Applied to the display panel according to any one of claims 9 to 14, the lighting test method comprises: Performing a lighting test on a plurality of display panels simultaneously by means of a lighting test device; The lighting test device comprises a plurality of test ports for outputting test signals to the display panel, and the probe layout of each of the test ports is the same.

16. An electronic device, characterized in that: The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the lighting test method for a display panel as claimed in claim 15 is implemented.

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