Display panel and electronic device
By setting pixel units in the display panel and adjusting the circuit connection method, the angle between the sidewall of the light-emitting chip and the surface of the driving backplate is made symmetrical, which solves the problem of poor light emission uniformity of the light-emitting chip and improves the display effect of the display panel.
Patent Information
- Application Number
- CN202310849753.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-11
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2043-07-11
AI Technical Summary
In existing display panels, the angle between the sidewall of the light-emitting chip and the surface of the driving backplate may be obtuse or acute, resulting in poor light emission uniformity of the light-emitting chip and affecting the display effect.
By setting multiple pixel units on the driving backplane and electrically connecting the first electrode of the pixel unit to the first circuit of the driving backplane and the second electrode to the second circuit of the driving backplane, the first circuit or second circuit of two adjacent pixel units are close to each other, so that the angle between the sidewall of the light-emitting chip and the surface of the driving backplane is symmetrical, thereby improving the light emission uniformity of the light-emitting chip.
It improves the display effect of the display panel, ensures the symmetry and uniformity of light emission between two adjacent pixel units, and enhances the display effect.
Smart Images

Figure CN119365012B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display, in particular to a display panel and an electronic device comprising the same. BACKGROUND
[0002] In the technical field of display, a display panel usually comprises a driving backboard and a plurality of light-emitting chips arranged on the driving backboard, and the display panel realizes the display function by controlling the light-emitting chips to emit light in cooperation.
[0003] However, in the prior art, due to the structure of the light-emitting chip, the included angle between the side wall of the light-emitting chip and the surface of the driving backboard may be obtuse or acute, which affects the light-emitting uniformity of the light-emitting chip and further affects the display effect of the display panel. SUMMARY
[0004] In view of the above deficiencies of the prior art, the present application aims to provide a display panel for enhancing the display effect and an electronic device comprising the same, which specifically comprises the following technical solutions.
[0005] In a first aspect, the present application provides a display panel comprising a driving backboard and a plurality of pixel units arranged on one side of the driving backboard, and the driving backboard is configured to control the light-emitting of the plurality of pixel units; each pixel unit comprises a first electrode and a second electrode arranged in a spaced manner, and along the arrangement direction of the first electrode and the second electrode, the driving backboard is provided with a first circuit and a second circuit, and the first electrode of each pixel unit is electrically connected to the first circuit, and the second electrode of each pixel unit is electrically connected to the second circuit.
[0006] Along the arrangement direction of the first electrode and the second electrode, the first circuits connected to the adjacent two pixel units are close to each other or the second circuits connected to the adjacent two pixel units are close to each other.
[0007] The display panel of the present application comprises a plurality of pixel units arranged on the driving backboard, and the first electrode of each pixel unit is electrically connected to the first circuit of the driving backboard, and the second electrode of each pixel unit is electrically connected to the second circuit of the driving backboard, so that the driving backboard can control the transmission of the electrical signal in the first circuit and the second circuit, thereby realizing the light-emitting control of each pixel unit and realizing the display function of the display panel of the present application.
[0008] The display panel of the present application further comprises the first circuits or the second circuits connected to the adjacent two pixel units being close to each other, so that the first electrodes or the second electrodes of the two pixel units are close to each other, thereby making the arrangement of the adjacent two pixel units symmetrical, realizing the light-emitting symmetry of the adjacent two pixel units, and increasing the display effect of the display panel of the present application.
[0009] In an embodiment, each pixel unit comprises at least one light emitting chip; along the arrangement direction of the first electrode and the second electrode, the light emitting chip comprises opposite first and second side walls, the first side wall is close to the first electrode, and the included angle between the first side wall and the driving backplate surface is a right angle or an obtuse angle; the second side wall is close to the second electrode, and the included angle between the second side wall and the driving backplate surface is an acute angle.
[0010] In the embodiment, the included angle between the side wall of the light emitting chip and the driving backplate surface can affect the light emitting intensity of the light emitting chip, and the side of the light emitting chip close to the first side wall has stronger light emitting intensity than the side of the light emitting chip close to the second side wall. By arranging the first side wall close to the first electrode and the second side wall close to the second electrode, and arranging the first side wall or the second side wall close to each other while the first electrode or the second electrode close to each other, the light emitted by the two light emitting chips is relatively uniform, thereby improving the display effect of the display panel.
[0011] In an embodiment, along the arrangement direction of the first electrode and the second electrode, the wavelengths of the light emitted by the two light emitting chips in the adjacent two pixel units are in the same wavelength range.
[0012] In the embodiment, by arranging the wavelengths of the light emitted by the two light emitting chips in the arrangement direction of the first electrode and the second electrode in the same wavelength range, the light emitted by the two light emitting chips in the arrangement direction is of the same color, thereby ensuring that the uniformity of the light of the corresponding color emitted by the adjacent two pixel units is relatively high.
[0013] In an embodiment, along the arrangement direction perpendicular to the first electrode and the second electrode, the pixel unit comprises at least three light emitting chips arranged at intervals, and the wavelengths of the light emitted by the at least three light emitting chips are different.
[0014] In the embodiment, by arranging the at least three light emitting chips arranged at intervals in the arrangement direction perpendicular to the first electrode and the second electrode, the light of different wavelengths emitted by the at least three light emitting chips can cooperate with each other and form a mixed color, thereby emitting light of various colors. Further, the display effect of the display panel is enhanced.
[0015] In an embodiment, each first electrode is in communication with a first circuit, and each second electrode is in communication with a second circuit; and / or, each second electrode is in communication with a first circuit, and each first electrode is in communication with a first circuit.
[0016] In the embodiment, by connecting each first electrode of the plurality of light emitting chips with the first circuit, and connecting each second electrode with the second circuit, the driving backboard can control the light emitting of each light emitting chip in each pixel unit by controlling the electrical signal in each second circuit. On the other hand, by connecting each second electrode of the plurality of light emitting chips with the second circuit, and connecting each first electrode with the first circuit, the driving backboard can control the light emitting of each light emitting chip in each pixel unit by controlling the electrical signal in each first circuit.
[0017] In an embodiment, the arrangement sequence of the light emitting chips with different wavelengths of outgoing light in each pixel unit is the same along the arrangement direction of the first electrode and the second electrode.
[0018] In the embodiment, by setting the arrangement sequence of the light emitting chips in each pixel unit to be the same, the distance between the two light emitting chips emitting the same wavelength of light is the same, avoiding the case that the light emitting areas of different wavelengths of light are inconsistent between the two adjacent pixel units. The display effect of the display panel is ensured.
[0019] In an embodiment, the first circuit connected to the two adjacent pixel units is located on the same side of the pixel unit along the arrangement direction of the first electrode and the second electrode.
[0020] In the embodiment, by setting the first circuit connected to the two pixel units along the arrangement direction of the first electrode and the second electrode on the same side, the display effect of the display panel along the arrangement direction of the first electrode and the second electrode is ensured, and the wiring of the first circuit and the second circuit on the driving backboard is facilitated.
[0021] In an embodiment, the first circuit connected to the two adjacent pixel units is located on different sides of the pixel unit along the arrangement direction of the first electrode and the second electrode.
[0022] In the embodiment, by setting the first circuit connected to the two pixel units along the arrangement direction of the first electrode and the second electrode on different sides, the display effect of the display panel along the arrangement direction of the first electrode and the second electrode is ensured, and the light emitting symmetry of the two adjacent pixel units along the arrangement direction of the first electrode and the second electrode is enhanced. The display effect of the display panel is further improved.
[0023] In an embodiment, the light-emitting chip further comprises opposite third and fourth side walls, an included angle between the third side wall and the surface of the driving back plate is a right angle or an obtuse angle, and an included angle between the fourth side wall and the surface of the driving back plate is an acute angle, and the third side walls of the light-emitting chips of two adjacent pixel units are close to each other or the fourth side walls of the light-emitting chips of two adjacent pixel units are close to each other.
[0024] In the embodiment, the included angle between the side wall of the light-emitting chip and the surface of the driving back plate in the arrangement direction perpendicular to the first electrode and the second electrode also affects the light-emitting intensity of the light-emitting chip, and the side close to the third side wall of the light-emitting chip has a stronger light-emitting intensity than the side close to the fourth side wall of the light-emitting chip. By making the third side walls of the light-emitting chips of two adjacent pixel units close to each other or the fourth side walls of the light-emitting chips of two adjacent pixel units close to each other, the uniformity of the light emitted by the two light-emitting chips is relatively good, thereby improving the display effect of the display panel.
[0025] In a second aspect, an electronic device is provided in the embodiments of the present application, comprising a shell and a display panel.
[0026] It can be understood that the electronic device provided in the second aspect of the present application also has the beneficial effect of enhancing the display effect, because the electronic device adopts the display panel provided in the first aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 FIG. 1 is a structural schematic diagram of an electronic device provided in an embodiment of the present application;
[0028] Figure 2 FIG. 2 is a plan structural schematic diagram of a display panel provided in an embodiment of the present application;
[0029] Figure 3 FIG. 3 is another plan structural schematic diagram of a display panel provided in an embodiment of the present application;
[0030] Figure 4 FIG. 4 is a partial cross-sectional structural schematic diagram of a display panel provided in an embodiment of the present application;
[0031] Figure 5 FIG. 5 is another partial cross-sectional structural schematic diagram of a display panel provided in an embodiment of the present application;
[0032] Figure 6 FIG. 6 is a cross-sectional structural schematic diagram of a display panel provided in an embodiment of the present application;
[0033] Figure 7 FIG. 7 is a structural schematic diagram of a display panel in the prior art;
[0034] Figure 8A schematic diagram of light intensity in a first direction of a display panel in the prior art;
[0035] Figure 9 A schematic diagram of light intensity in a second direction of a display panel in the prior art;
[0036] Figure 10 A schematic diagram of light intensity in a first direction of a display panel provided in an embodiment of the present application;
[0037] Figure 11 A schematic diagram of light intensity in a second direction of a display panel provided in an embodiment of the present application;
[0038] Figure 12 A schematic diagram of a partial plane of a display panel provided in an embodiment of the present application;
[0039] Figure 13 Another schematic diagram of a partial plane of a display panel provided in an embodiment of the present application;
[0040] Figure 14 A schematic diagram of a structure of a display panel provided in an embodiment of the present application;
[0041] Figure 15 A schematic diagram of a partial plane of a display panel provided in an embodiment of the present application;
[0042] Figure 16 Another schematic diagram of a partial plane of a display panel provided in an embodiment of the present application;
[0043] Figure 17 A schematic diagram of a partial plane of a display panel provided in an embodiment of the present application;
[0044] Figure 18 Another schematic diagram of light intensity in a first direction of a display panel provided in an embodiment of the present application;
[0045] Figure 19 Another schematic diagram of light intensity in a second direction of a display panel provided in an embodiment of the present application.
[0046] The attached reference numerals are as follows: 200 - Electronic device; 201 - Housing; 100 - Display panel; 10 - Driving backplate; 11 - First circuit; 12 - Second circuit; 20 - Pixel unit; 20a - First pixel unit; 20b - Second pixel unit; 20c - Third pixel unit; 20d - Fourth pixel unit; 21 - First electrode; 22 - Second electrode; 23 - Light-emitting chip; 23a - First light-emitting chip; 23b - Second light-emitting chip; 23c - Third light-emitting chip; 2311 - First sidewall; 2312 - Second sidewall; 2313 - ... Three sidewalls; 2314-Fourth sidewall; 232-First semiconductor layer; 233-Light-emitting layer; 234-Second semiconductor layer; 235-First pad; 236-Second pad; 30-Barrier; 100'-Display panel; 10'-Driver backplane; 11'-First circuit; 12'-Second circuit; 20'-Pixel unit; 21'-First electrode; 22'-Second electrode; 23'-Light-emitting chip; 001-First direction; 002-Second direction; A1-First included angle; A2-Second included angle; A3-Third included angle; A4-Fourth included angle. Detailed Implementation
[0047] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.
[0048] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and do not have any sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "rear," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.
[0049] In the description of the present application, it should be noted that unless otherwise explicitly defined and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection; it can be direct connection, or indirect connection through intermediate medium; it can be internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a specific order. In addition, the terms "including", "may include", "containing" or "may contain" used in the present application represent the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit other one or more functions, operations, elements, etc. In addition, the terms "including" or "containing" represent the existence of the corresponding features, numbers, steps, operations, elements, components or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components or combinations thereof, and are intended to cover non-exclusive inclusion.
[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to be limiting of the present application.
[0051] Referring to Figure 1 A structural schematic diagram of an electronic device 200 provided in an embodiment of the present application is shown.
[0052] As Figure 1 shown, the electronic device 200 of the present application includes a housing 201 and a display panel 100. The housing 201 is used to accommodate and protect the display panel 100. The display panel 100 can emit light outward to realize the display function of the electronic device 200 of the present application.
[0053] Referring to Figure 2 A planar structural schematic diagram of the display panel 100 provided in an embodiment of the present application is shown.
[0054] As Figure 2 shown, the display panel 100 of the present application includes a driving backboard 10 and a plurality of pixel units 20. The plurality of pixel units 20 are arranged on one side of the driving backboard 10 and are arrayed along a first direction 001 and a second direction 002 respectively, and each pixel unit 20 is electrically connected to the driving backboard 10. The first direction 001 and the second direction 002 are perpendicular to each other.
[0055] The driving backboard 10 can control the electrical signal to enter each pixel unit 20. It can be understood that when the driving backboard 10 controls the electrical signal to enter the pixel unit 20, the electrical signal can drive the pixel unit 20 to emit light, thereby realizing the display function of the display panel 100 of the present application.
[0056] Specifically, please refer to Figure 3 Another schematic diagram of the planar structure of the display panel 100 provided in an embodiment of the present application is shown.
[0057] As Figure 3 shown, each pixel unit 20 includes a first electrode 21 and a second electrode 22, and the first electrode 21 and the second electrode 22 are arranged at intervals along the first direction 001. The driving backboard 10 includes a first circuit 11 and a second circuit 12, as Figure 3 shown, the first electrode 21 of each pixel unit 20 is electrically connected to the first circuit 11, and the second electrode 22 of each pixel unit 20 is electrically connected to the second circuit 12.
[0058] It can be understood that when the electrical signal of the external circuit can be input into the first electrode 21 and the second electrode 22 through the first circuit 11 and the second circuit 12 respectively, the input of the electrical signal is realized through the first electrode 21 and the second electrode 22, thereby realizing the light emission control of the pixel unit 20 by the driving backboard 10. Thus, the display function of the display panel 100 of the present application is realized.
[0059] Among them, in the first direction 001, the number of pixel units 20 is multiple, and the pixel units 20 include a first pixel unit 20a, a second pixel unit 20b and a third pixel unit 20c. Each pixel unit 20 includes a plurality of light emitting chips 23. The plurality of light emitting chips 23 are arrayed on the surface of the driving backboard 10 along the second direction 002.
[0060] As Figure 3 shown, for the first pixel unit 20a and the second pixel unit 20b, the second circuit 12 connected to the first pixel unit 20a and the second circuit 12 connected to the second pixel unit 20b are close to each other. That is, along the first direction 001, the two second circuits 12 connected to the two pixel units 20 are located between the two first circuits 11 connected to the two pixel units 20.
[0061] It can be understood that along the first direction 001, the second electrodes 22 of the first pixel unit 20a and the second pixel unit 20b are close to each other, thereby making the first pixel unit 20a and the second pixel unit 20b symmetrical along the center line between them.
[0062] In the preparation of the light-emitting chip 23, due to the preparation process and the nature of the preparation material itself, the light-emitting chip 23 prepared in the first direction 001 is not uniform in light-emitting brightness. It can be understood that the second circuit 12 connected to the first pixel unit 20a and the second circuit 12 connected to the second pixel unit 20b are close to each other, which can make the light-emitting chips 23 in the first pixel unit 20a and the second pixel unit 20b be symmetrically distributed, so that the light emitted by the first pixel unit 20a and the second pixel unit 20b is high in uniformity. Further, the polarization problem of the display panel 100 of the present application is improved.
[0063] As shown in Figure 3 , for the second pixel unit 20b and the third pixel unit 20c, the first circuit 11 connected to the second pixel unit 20b and the first circuit 11 connected to the third pixel unit 20c are close to each other.
[0064] It can be understood that the light-emitting chips 23 in the second pixel unit 20b and the third pixel unit 20c are also symmetrically distributed, so that the light emitted by the second pixel unit 20b and the third pixel unit 20c is high in uniformity. Further, the polarization problem of the display panel 100 of the present application is improved.
[0065] Thus, the display panel 100 of the present application is arranged by making the first circuit 11 or the second circuit 12 connected to the two adjacent pixel units 20 close to each other, so that the first electrode 21 and the second electrode 22 of the two pixel units 20 are close to each other, thereby making the two adjacent pixel units 20 be symmetrically arranged, so that the light emitted by the two adjacent pixel units 20 is high in symmetry. Further, the display effect of the display panel 100 of the present application is improved.
[0066] It can be understood that, Figure 3 and subsequent schematic diagrams of the first circuit 11 and the second circuit 12 on the driving backboard 10, in order to facilitate the description of the connection relationship between the pixel unit 20 and the driving backboard 10, the pixel unit 20 and the structure in the pixel unit 20 are represented by dashed lines.
[0067] Specifically, please refer to Figure 4 the partial cross-sectional structure schematic diagram of the display panel 100 provided in an embodiment of the present application, please refer to Figure 5 the other partial cross-sectional structure schematic diagram of the display panel 100 provided in an embodiment of the present application, and please refer to Figure 6 the cross-sectional schematic diagram of the display panel 100 provided in an embodiment of the present application. Please refer to Figure 3 .
[0068] As shown in Figure 3 , Figure 4、 Figure 5 and Figure 6 As shown in FIG. 1, the light emitting chip 23 comprises a first semiconductor layer 232, a light emitting layer 233 and a second semiconductor layer 234 which are stacked in sequence. The first semiconductor layer 232 can provide electrons or holes for the light emitting chip 23, and correspondingly, the second semiconductor layer 234 can provide holes or electrons for the light emitting chip 23.
[0069] When the electric signal emitted by the driving back plate 10 makes the light emitting chip 23 forward conducting via the first electrode 21 and the second electrode 22, the current acting on the first semiconductor layer 232 will make the electrons or holes of the first semiconductor layer 232 move to the second semiconductor layer 234, and correspondingly, the current acting on the second semiconductor layer 234 will make the holes or electrons of the second semiconductor layer 234 move to the first semiconductor layer 232. At the same time, when the above-mentioned electrons and holes meet and combine, light will be emitted outward, thereby achieving the purpose of light emission.
[0070] Meanwhile, the light emitting layer 233 is used to carry the electrons or holes emitted from the first semiconductor layer 232, and the holes or electrons emitted from the second semiconductor layer 234. It can be understood that the light emitted by the light emitting chip 23 is emitted outward from the light emitting layer 233. On the other hand, the light emitting layer 233 will also increase the coincidence rate of electrons and holes, and improve the recombination light emitting efficiency of the light emitting chip 23.
[0071] The first semiconductor layer 232 is provided with a first pad 235 on the surface, and the second semiconductor layer 234 is provided with a second pad 236 on the surface. The first pad 235 is electrically connected with the first electrode 21, and the second pad 236 is electrically connected with the second electrode 22. It can be understood that the electric signal can enter the first semiconductor layer 232 and the second semiconductor layer 234 from the first pad 235 and the second pad 236 respectively via the first electrode 21 and the second electrode 22, thereby driving the light emitting chip 23 to emit light.
[0072] In the prior art, the light emitting chip 23 is usually arranged on the first surface of the wafer, and a laser cutting process is used to cut the light emitting chip 23 from the wafer to form a separate light emitting chip 23. However, since the crystal direction of the substrate structure of the light emitting chip 23 is not perpendicular to the first surface, when laser cutting is performed, the side wall of the light emitting chip 23 formed by laser cutting is also not perpendicular to the first surface.
[0073] It can be understood that when the split angle between the side wall and the first surface is an obtuse angle or an acute angle, the proportion of the light emitting layer 233 of the light emitting chip 23 will be affected. Thus, in the first direction 001, the light emitting intensity of the light emitting chip 23 is not consistent.
[0074] As Figure 4As shown, when the light emitting chip 23 adopted by the display panel 100 of the present application is a positive light emitting chip, the included angle between the side wall of the light emitting chip 23 and the surface support of the driving back plate 10 exists as an obtuse angle or an acute angle. As shown in Figure 5 As shown, when the light emitting chip 23 adopted by the display panel 100 of the present application is a flip light emitting chip, the included angle between the side wall of the light emitting chip 23 and the surface support of the driving back plate 10 also exists as an obtuse angle or an acute angle. As shown in Figure 6 As shown, when the light emitting chip 23 adopted by the display panel 100 of the present application is a vertical light emitting chip, the included angle between the side wall of the light emitting chip 23 and the surface support of the driving back plate 10 also exists as an obtuse angle or an acute angle.
[0075] In the embodiment, along the first direction 001, the light emitting chip 23 includes opposite first and second side walls 2311 and 2312. As shown in Figure 4 、 Figure 5 and Figure 6 As shown, the first included angle A1 between the first side wall 2311 and the surface of the driving back plate 10 is an obtuse angle. It can be understood that along the first direction 001, the proportion of the light emitting layer 233 on the side of the light emitting chip 23 close to the first side wall 2311 is relatively large, so that more light is emitted from this side.
[0076] Correspondingly, as shown in Figure 4 、 Figure 5 and Figure 6 As shown, the second included angle A2 between the second side wall 2312 and the surface of the driving back plate 10 is an acute angle. It can be understood that along the first direction 001, the proportion of the light emitting layer 233 on the side of the light emitting chip 23 close to the second side wall 2312 is relatively small, so that less light is emitted from this side.
[0077] Along the first direction 001, the first electrode 21 is close to the first side wall 2311, and the second electrode 22 is close to the second side wall 2312. Based on the second circuit 12 connected to the adjacent two pixel units 20 being close to each other, the second side walls 2312 of the light emitting chips 23 in the adjacent two pixel units 20 are close to each other. It can be understood that the sides with relatively weak light intensity in the adjacent light emitting chips 23 are close to each other, so that the light emitted by the light emitting chips 23 can be mutually compensated, so that the light emitted by the two light emitting chips 23 is relatively uniform.
[0078] On the other hand, the first circuit 11 connected to the adjacent two pixel units 20 can also be close to each other, so that the first side walls 2311 of the light emitting chips 23 in the adjacent two pixel units 20 are close to each other. It can be understood that the sides with relatively strong light intensity in the adjacent light emitting chips 23 are close to each other, so that the light emitted by the light emitting chips 23 is relatively concentrated, reducing the polarization phenomenon generated when the two pixel units 20 cooperate to emit light.
[0079] That is, the display panel 100 of the present application can make the light emitted by the adjacent two pixel units 20 symmetrical by making the first circuit 11 close to the first side wall 2311 of the adjacent two pixel units 20 close to each other, or making the second circuit 12 close to the second side wall 2312 of the adjacent two pixel units 20 close to each other, thereby improving the symmetry of the light emitted by the adjacent two pixel units 20. Further improve the display effect of the display panel 100 of the present application.
[0080] It can be understood that in other embodiments, the first included angle A1 between the first side wall 2311 and the surface of the driving backboard 10 is a right angle, and the second included angle A2 between the second side wall 2312 and the surface of the driving backboard 10 is an acute angle.
[0081] Please refer to Figure 7 the prior art display panel 100' plane structure schematic diagram.
[0082] As Figure 7 shown, in the prior art, the display panel 100' includes a driving backboard 10' and a plurality of pixel units 20'. Among them, the plurality of pixel units 20' are arranged on one side of the driving backboard 10', each pixel unit 20' includes a first electrode 21' and a second electrode 22' arranged at intervals, the display panel 100' includes a first circuit 11' and a second circuit 12', the first electrode 21' is electrically connected with the first circuit 11', and the second electrode 22' is electrically connected with the second circuit 12', so that the driving backboard 10' can control the corresponding pixel unit 20' to emit light by controlling the electrical signal in the first circuit 11' and the second circuit 12'.
[0083] As Figure 7 shown, the arrangement direction of the first electrode 21' and the second electrode 22' is the first direction 001. Along the first direction 001, the arrangement mode of the first circuit 11' and the second circuit 12' connected to the adjacent two pixel units 20' is consistent.
[0084] In the prior art, when the light emitting chip 23' in the pixel unit 20' of the display panel 100' adopts a normal light emitting chip, a flip light emitting chip and a vertical light emitting chip, due to the limitations of the preparation process and preparation materials in the preparation process, there is an included angle between the sidewall of the light emitting chip 23' and the surface of the driving back plate 10' which is an acute angle or an obtuse angle.
[0085] When the two adjacent pixel units 20' along the first direction 001 emit light, the light intensity emitted by different areas of the two adjacent pixel units 20' along the first direction 001 is different, so that the light emitting brightness of the display panel 100' in different areas is inconsistent, which affects the light emitting uniformity of the display panel 100'.
[0086] As shown in FIG. 1, when the light emitting chip 23 in the two adjacent pixel units 20 emits red light, green light and blue light respectively along the first direction 001, the light emitted by the light emitting chip 23 is not based on zero point symmetry. Figure 8 That is, the symmetry of the light emitted by the light emitting chip 23 is poor, so that the light emitting uniformity of the display panel 100' is poor.
[0087] On the other hand, as shown in FIG. 2, when the light emitting chip 23 in the two adjacent pixel units 20 emits red light, green light and blue light respectively along the second direction 002, the light emitted by the light emitting chip 23 is also not based on zero point symmetry. Figure 9 That is, the symmetry of the light emitted by the light emitting chip 23 is also poor, so that the light emitting uniformity of the display panel 100' is poor.
[0088] The display panel 100 of the present application improves the symmetry of the light emitted by the two adjacent pixel units 20 along the first direction 001 by arranging the pixel units 20 and arranging the first circuit 11 or the second circuit 12 connected by the two pixel units 20 along the first direction 001 close to each other, so that the light emitting uniformity of the two adjacent pixel units 20 is relatively high, and the light emitting of the display panel 100 of the present application is relatively uniform. Further improve the display effect of the display panel 100 of the present application.
[0089] As shown in FIG. 1, when the light emitting chip 23 in the two adjacent pixel units 20 emits red light, green light and blue light respectively along the first direction 001, the light emitted by the light emitting chip 23 is not based on zero point symmetry. Figure 10 Compared with FIG. 1, the light of different colors emitted by the two adjacent pixel units 20 of the present application is mutually symmetrical, so that the light emitting of the display panel 100 of the present application is relatively uniform. Figure 8
[0090] On the other hand, as shown in FIG. 2, when the light emitting chip 23 in the two adjacent pixel units 20 emits red light, green light and blue light respectively along the second direction 002, the light emitted by the light emitting chip 23 is also not based on zero point symmetry. Figure 11 As shown, in the second direction 002, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the light emitted by the two adjacent pixel units 20 is symmetrical to each other, so that the light emitted by the display panel 100 is relatively uniform. Figure 9 As shown, the light of different colors emitted by the two adjacent pixel units 20 of the present application is symmetrical to each other, so that the light emitted by the display panel 100 is relatively uniform.
[0091] As shown in Figure 12 , a partial plan view of the display panel 100 provided in an embodiment of the present application, and as shown in Figure 13 , another partial plan view of the display panel 100 provided in an embodiment of the present application. Please refer to Figure 3 . Among them, Figure 12 and Figure 13 are partial enlarged schematic views. Figure 3 As shown in
[0092] , Figure 3 , Figure 12 and Figure 13 , along the first direction 001, the first pixel unit 20a and the second pixel unit 20b are arranged at intervals. As shown in Figure 13 , each pixel unit 20 has a plurality of light emitting chips 23 arranged along the second direction 002, and each light emitting chip 23 is arranged in alignment with the remaining light emitting chips 23 in the adjacent pixel unit 20.
[0093] Along the first direction 001, one light emitting chip 23 located in the first pixel unit 20a is spaced apart from another light emitting chip 23 located in the second pixel unit 20b and arranged in parallel. The wavelengths of the light emitted by the two light emitting chips 23 are in the same wavelength range.
[0094] Based on the wavelength range of the emitted light, the wavelength range is related to the color of the light. It can be understood that by setting the wavelengths of the light emitting chips 23 in the two adjacent pixel units 20 to be the same, the colors of the light emitted by the two adjacent pixel units 20 are the same, so that when the two pixel units 20 emit light of the same color, the light emitted by the two pixel units 20 has symmetry. Thus, the display effect of the display panel 100 is improved.
[0095] In an embodiment, as shown in Figure 13 , along the second direction 002, each pixel unit 20 includes first, second and third light emitting chips 23a, 23b and 23c arranged at intervals. The wavelengths of the light emitted by the first, second and third light emitting chips 23a, 23b and 23c are all different, so that the light emitted by the first, second and third light emitting chips 23a, 23b and 23c has different colors.
[0096] It can be understood that the driving backboard 10 can control the first light emitting chip 23a, the second light emitting chip 23b and the third light emitting chip 23c to emit light through the first circuit 11 and the second circuit 12, so that the first light emitting chip 23a, the second light emitting chip 23b and the third light emitting chip 23c can cooperate with each other to form color mixing, thereby increasing the color types of the light emitted outward by the pixel unit 20 and enhancing the display effect of the display panel 100.
[0097] As shown in Figure 13 In this embodiment, the wavelength range of the light emitted by the first light emitting chip 23a is 620nm-760nm, so that the first light emitting chip 23a can emit red light outward. The wavelength range of the light emitted by the second light emitting chip 23b is 492nm-577nm, so that the second light emitting chip 23b can emit green light outward. The wavelength range of the light emitted by the third light emitting chip 23c is 400nm-450nm, so that the third light emitting chip 23c can emit blue light outward. Thus, the structure of “R, G, B” three primary color light emitting chips is formed.
[0098] It can be understood that in other embodiments, the wavelength range, arrangement method and number of the light emitted by the first light emitting chip 23a, the second light emitting chip 23b and the third light emitting chip 23c can also be set arbitrarily based on the specific use scene of the product. The light emitting chip 23 in the pixel unit 20 can emit light of different colors and can form a display effect by color mixing.
[0099] In another embodiment, the number of light emitting chips 23 in the pixel unit 20 in the second direction 002 can also be set to be greater than three, which is not particularly limited by the applicant.
[0100] In an embodiment, referring back to Figure 3 The number of the first circuit 11 connected to each pixel unit 20 is multiple, and the number of the second circuit 12 connected to each pixel unit 20 is one. Among them, each first circuit 11 is in one-to-one communication with each first electrode 21, thereby realizing current control of each light emitting chip 23 by the first circuit 11. Each second circuit 12 is in communication with all the second electrodes 22 in one pixel unit 20.
[0101] It can be understood that when the driving backboard 10 controls a single light emitting chip 23 in a single pixel unit 20 to emit light, the light emitting control of the single light emitting chip 23 can be realized by controlling the current in the first circuit 11 corresponding to the light emitting chip 23.
[0102] In another embodiment, the number of the first circuit 11 connected to each pixel unit 20 can be one, and the number of the second circuit 12 connected to each pixel unit 20 can be multiple. When the driving backboard 10 controls the single light emitting chip 23 to emit light, the light emitting control of the single light emitting chip 23 can be realized by controlling the current in the second circuit 12 corresponding to the light emitting chip 23.
[0103] It can be understood that in other embodiments, the number of the first circuit 11 and the second circuit 12 connected to each pixel unit 20 can also be other, so that each light emitting chip 23 in each pixel unit 20 can realize the series and parallel connection of each other through the first circuit 11 and the second circuit 12, to realize the different display effects of the display panel 100 of the present application.
[0104] Please refer to Figure 14 the structural schematic diagram of the display panel 100 provided in an embodiment of the present application. Please refer to Figure 3 .
[0105] As shown in Figure 3 and Figure 14 , in the second direction 002, there are adjacent first pixel unit 20a and fourth pixel unit 20d, the first light emitting chip 23a, the second light emitting chip 23b and the third light emitting chip 23c in the first pixel unit 20a are arranged in sequence along the second direction 002, and the first light emitting chip 23a, the second light emitting chip 23b and the third light emitting chip 23c in the fourth pixel unit 20d are arranged in sequence along the second direction 002. That is, in the second direction 002, the arrangement sequence of the light emitting chips 23 with different wavelengths of outgoing light in each pixel unit 20 is the same.
[0106] It can be understood that the interval between the first light emitting chip 23a in the first pixel unit 20a and the first light emitting chip 23a in the fourth pixel unit 20d is the same as the interval between the other light emitting chips 23.
[0107] When the arrangement sequence of the light emitting chips 23 in the fourth pixel unit 20d is different from the arrangement sequence of the light emitting chips 23 in the first pixel unit 20a, for example, when the light emitting chips 23 in the fourth pixel unit 20d are arranged in sequence as the third light emitting chip 23c, the second light emitting chip 23b and the first light emitting chip 23a, the interval between the third light emitting chips 23c in the adjacent two pixel units 20 becomes smaller, so that the light emitted by the third light emitting chip 23c is relatively concentrated. And the interval between the first light emitting chips 23a in the adjacent two pixel units 20 becomes larger, so that the light emitted by the first light emitting chip 23a is relatively dispersed.
[0108] That is, along the second direction 002, when the arrangement order of the light emitting chips 23 with different light emitting wavelengths in the adjacent two pixel units 20 is different, the interval of the light emitting chips 23 capable of emitting light with the same wavelength in the adjacent two pixel units 20 is different, so that when the adjacent two pixel units 20 cooperate to emit light, the light emitting areas of light with different wavelengths are inconsistent. Therefore, the display effect of the display panel 100 is affected.
[0109] Therefore, by setting the arrangement order of the light emitting chips 23 with different light emitting wavelengths in each pixel unit 20 in the second direction 002 to be the same, it can be ensured that the light emitting areas of light with different wavelengths are the same when the adjacent pixel units 20 cooperate to emit light, thereby improving the light emitting uniformity of the display panel 100 in the second direction 002 and improving the display effect of the display panel 100.
[0110] In an embodiment, as shown in Figure 3 in the second direction 002, the first circuits 11 connected to the adjacent two pixel units 20 are located on the same side of the pixel units 20 along the first direction 001, and correspondingly, the second circuits 12 are located on the other side of the pixel units 20 along the first direction 001.
[0111] That is, in the second direction 002, the plurality of pixel units 20 are spaced to form a plurality of columns, and the first circuits 11 and the second circuits 12 connected to each column of pixel units 20 are arranged on both sides of each column of pixel units 20. Therefore, the first circuits 11 and the second circuits 12 on the driving backplate 10 are simplified, which is conducive to realizing the wiring of the first circuits 11 and the second circuits 12.
[0112] In an embodiment, as shown in Figure 14 in the second direction 002, the first circuits 11 connected to the first pixel unit 20a and the second circuits 12 connected to the fourth pixel unit 20d are located on the same side. That is, the first circuits 11 connected to the adjacent two pixel units 20 are located on different sides of the pixel units 20 along the first direction 001.
[0113] Since the light emitting brightness of the light emitting chips 23 in the second direction 002 is also inconsistent, it can be understood that by arranging the first circuits 11 connected to the adjacent two pixel units 20 on different sides, the symmetry of the light emitting of the adjacent two pixel units 20 in the second direction 002 is improved.
[0114] Specifically, please refer to Figure 15 a partial schematic view of the display panel 100 provided in an embodiment of the present application, Figure 16 another partial schematic view of the display panel 100 provided in an embodiment of the present application, and Figure 17A partial cross-sectional view of the display panel 100 according to an embodiment of the present application is shown.
[0115] As shown in Figure 15 , Figure 16 and Figure 17 , the light emitting chip 23 also includes opposite third and fourth side walls 2313 and 2314 along the second direction 002. Among them, the third angle A3 between the third side wall 2313 and the surface of the driving backboard 10 is an obtuse angle, and the fourth angle A4 between the fourth side wall 2314 and the surface of the driving backboard 10 is an acute angle.
[0116] It can be understood that the inconsistency of the angles between the third and fourth side walls 2313 and 2314 and the surface of the driving backboard 10 causes the light emitting chip 23 to have inconsistent light emitting brightness on the side close to the third side wall 2313 and the side close to the fourth side wall 2314 along the second direction 002.
[0117] Based on the fact that the two adjacent pixel units 20 in the second direction 002 have the connected first circuit 11 arranged on different sides. As shown in Figure 17 , the fourth side walls 2314 of the light emitting chips 23 in the two adjacent pixel units 20 are close to each other, and the sides of the adjacent light emitting chips 23 that have relatively weak light emitting intensity are close to each other, so that the light emitted by the light emitting chips 23 can compensate for each other, thereby improving the light emitting symmetry of the two adjacent pixel units 20.
[0118] On the other hand, the third side walls 2313 of the light emitting chips 23 in the two adjacent pixel units 20 can also be close to each other, and the sides of the adjacent light emitting chips 23 that have relatively strong light emitting intensity are close to each other, so that the light emitted by the two adjacent pixel units 20 is relatively concentrated, thereby reducing the polarization phenomenon generated when the pixel units 20 emit light.
[0119] It can be understood that in other embodiments, the third angle A3 between the third side wall 2313 and the surface of the driving backboard 10 is a right angle, and the fourth angle A4 between the fourth side wall 2314 and the surface of the driving backboard 10 is an acute angle.
[0120] Therefore, the second circuits 12 connected by the two adjacent pixel units 20 in the first direction 001 are close to each other, and the first circuits 11 connected by the two adjacent pixel units 20 in the second direction 002 are arranged on different sides, so that the multiple pixel units 20 in the array on the surface of the driving backboard 10 are symmetrical to each other in the first direction 001 and the second direction 002, further improving the light emitting uniformity of the display panel 100 of the present application.
[0121] Among them, as shown in Figure 18As shown, in the first direction 001, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the symmetry of the light emitted by the two adjacent pixel units 20 is higher, thereby further improving the light emission uniformity of the display panel 100. Figure 10 As shown, in the second direction 002, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the symmetry of the light emitted by the two adjacent pixel units 20 is higher, thereby further improving the light emission uniformity of the display panel 100.
[0122] On the other hand, as shown in FIG. 2B, the display panel 100 further comprises a barrier wall 30. In the first direction 001, the barrier wall 30 is arranged between the two pixel units 20 connected with the first circuit 11 close to each other, and the barrier wall 30 is arranged between the two pixel units 20 with the third side wall 2313 close to each other. Figure 19 As shown, in the second direction 002, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the symmetry of the light emitted by the two adjacent pixel units 20 is higher, thereby further improving the light emission uniformity of the display panel 100. Figure 11 As shown, in the second direction 002, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the symmetry of the light emitted by the two adjacent pixel units 20 is higher, thereby further improving the light emission uniformity of the display panel 100.
[0123] In an embodiment, referring back to FIG. 2B, the display panel 100 further comprises a barrier wall 30. In the first direction 001, the barrier wall 30 is arranged between the two pixel units 20 connected with the first circuit 11 close to each other, and the barrier wall 30 is arranged between the two pixel units 20 with the third side wall 2313 close to each other. Figure 2 As shown, in the second direction 002, when the light emitting chips 23 in the two adjacent pixel units 20 emit red light, green light and blue light respectively, the symmetry of the light emitted by the two adjacent pixel units 20 is higher, thereby further improving the light emission uniformity of the display panel 100.
[0124] It should be understood that the terms "first", "second" and the like in the description and in the claims do not denote any
[0125] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The exemplary description of the above terms in the present specification does not necessarily refer to the same embodiment or example. Moreover, the specific feature, structure, material or characteristic described can be combined in any one or more embodiments or examples in a suitable manner.
[0126] It should be understood that the application is not limited to the examples described above, which can be modified or transformed by a person of ordinary skill in the art according to the above description, and all these modifications and transformations shall fall within the protection scope of the claims of the present application. A person of ordinary skill in the art can understand that all or part of the processes of the above-mentioned embodiments are implemented, and equivalent changes made according to the claims of the present application, still fall within the scope covered by the present application.
Claims
1. A display panel, characterized by, The display panel comprises a driving backboard and a plurality of pixel units arranged on one side of the driving backboard, the driving backboard being used for controlling the plurality of pixel units to emit light; each of the pixel units comprises a first electrode and a second electrode arranged at intervals, and a first circuit and a second circuit are arranged on the driving backboard along the arrangement direction of the first electrode and the second electrode, the first electrode of each of the pixel units being electrically connected with the first circuit, and the second electrode of each of the pixel units being electrically connected with the second circuit. Along the arrangement direction of the first electrode and the second electrode, the first circuits connected with the two adjacent pixel units are close to each other or the second circuits are close to each other.
2. The display panel of claim 1, wherein, Each of the pixel units comprises at least one light emitting chip. Along the arrangement direction of the first electrode and the second electrode, the light emitting chip comprises opposite first and second side walls, the first side wall is close to the first electrode, and the included angle between the first side wall and the surface of the driving backboard is a right angle or an obtuse angle; the second side wall is close to the second electrode, and the included angle between the second side wall and the surface of the driving backboard is an acute angle.
3. The display panel of claim 2, wherein, Along the arrangement direction of the first electrode and the second electrode, the wavelengths of the light emitted by the two light emitting chips in the two adjacent pixel units are in the same wavelength range.
4. The display panel of claim 2, wherein, Along the direction perpendicular to the arrangement direction of the first electrode and the second electrode, the pixel unit comprises at least three light emitting chips arranged at intervals, and the wavelengths of the light emitted by the at least three light emitting chips are different.
5. The display panel of claim 4, wherein, Each of the first electrodes is in communication with the first circuit, and each of the second electrodes is in communication with the second circuit; and / or, Each of the second electrodes is in communication with the first circuit, and each of the first electrodes is in communication with the first circuit.
6. The display panel of claim 4, wherein, Along the direction perpendicular to the arrangement direction of the first electrode and the second electrode, the arrangement sequence of the light emitting chips with different wavelengths of emitted light in each of the pixel units is the same.
7. The display panel according to any one of claims 2-6, wherein, Along the direction perpendicular to the arrangement direction of the first electrode and the second electrode, the first circuits connected with the two adjacent pixel units are located on the same side of the pixel units along the arrangement direction of the first electrode and the second electrode.
8. The display panel according to any one of claims 2-6, wherein, Along the direction perpendicular to the arrangement direction of the first electrode and the second electrode, the first circuits connected with the two adjacent pixel units are located on different sides of the pixel units along the arrangement direction of the first electrode and the second electrode.
9. The display panel of claim 8, wherein, Along the direction perpendicular to the arrangement direction of the first electrode and the second electrode, the light emitting chip further comprises opposite third and fourth side walls, the included angle between the third side wall and the surface of the driving backboard is a right angle or an obtuse angle, the included angle between the fourth side wall and the surface of the driving backboard is an acute angle, and the third side walls of the light emitting chips of the two adjacent pixel units are close to each other or the fourth side walls are close to each other.
10. An electronic device, comprising: The display device comprises a shell and the display panel according to any one of claims 1-9, and the display panel is accommodated in the shell.
Citation Information
Patent Citations
Organic lighting component
CN101222022A
Display panel and display device
CN110046611A