Display panel and display apparatus
By adjusting the shape and outline of the first sub-pixel and the design of the light adjustment layer, the problem of poor privacy protection of the display panel was solved, and privacy protection and display reliability were improved without affecting brightness and aperture ratio.
Patent Information
- Application Number
- PCT/CN2024/118164
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-28
- Filing Date
- 2024-09-11
- Publication Date
- 2026-01-02
AI Technical Summary
Existing display panels have poor privacy protection, making it difficult to improve privacy protection capabilities without affecting display brightness and aperture ratio.
By adjusting the outline of the first sub-pixel so that the ratio of its perimeter to area in its orthographic projection is greater than that of the second sub-pixel, and by combining this with a light adjustment layer to regulate the light, the privacy protection effect of the first sub-pixel is ensured while maintaining the high luminous brightness of the second sub-pixel.
It improves the privacy protection of the display panel while maintaining the brightness requirements in wide-viewing-angle display mode, and enhances the display reliability of the display panel in different working modes.
Smart Images

Figure CN2024118164_02012026_PF_FP_ABST
Abstract
Description
Display panel and display device
[0001] Cross-references to related applications
[0002] This application claims priority to Chinese Patent Application No. 202410858836.9, entitled “Display Panel and Display Device”, filed on June 28, 2024, the entire contents of which are incorporated herein by reference. Technical Field
[0003] This application relates to the field of display device technology, and more particularly to a display panel and display device. Background Technology
[0004] With the development of science and technology, the display panel industry has also made great progress and achieved diversified development. On this basis, people's requirements for display panels are also increasing day by day. For example, people's demand for privacy protection technology is gradually increasing.
[0005] Summary of the Invention
[0006] This application provides a display panel and a display device that can improve the reliability of the display panel.
[0007] In a first aspect, embodiments of this application provide a display panel, which includes first type pixels and second type pixels. The first type pixels include first sub-pixels of a first color, and the second type pixels include second sub-pixels of the first color. The display panel further includes a substrate, a device layer, and a light adjustment layer. The device layer is disposed on one side of the substrate, and the light adjustment layer is located on the side of the device layer away from the substrate. The light adjustment layer includes a plurality of light adjustment portions. The first sub-pixels have a first orthographic projection on the substrate, and the second sub-pixels have a second orthographic projection on the substrate. The orthographic projections of the light adjustment portions on the substrate at least partially overlap with the first orthographic projections. The ratio of the perimeter to the area corresponding to the first orthographic projection is greater than the ratio of the perimeter to the area corresponding to the second orthographic projection.
[0008] Secondly, embodiments of this application provide a display device, which includes the display panel in any of the foregoing embodiments.
[0009] This application provides a display panel and display device. By adjusting the outline of a first sub-pixel, the ratio of the perimeter to the area of the first orthographic projection corresponding to the first sub-pixel is made greater than the ratio of the perimeter to the area of the second orthographic projection corresponding to the second sub-pixel. This improves the privacy protection effect of the first sub-pixel. Furthermore, it reduces the impact of the first sub-pixel on the aperture ratio of the second sub-pixel, allowing the second sub-pixel to still have a certain light-emitting area. This ensures that the second sub-pixel has high brightness, meeting the brightness requirements of the display panel in wide-viewing-angle display mode, and improving the display effect and reliability of the display panel in different operating modes. Attached Figure Description
[0010] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 is a schematic diagram of the pixel arrangement structure of a display panel provided in an embodiment of this application;
[0012] Figure 2 is a schematic diagram of the structure of a sub-pixel and a light adjustment part in a local position in a display panel according to an embodiment of this application;
[0013] Figure 3 is a schematic diagram of the cross-sectional structure at point A-A' in Figure 2;
[0014] Figures 4a and 4b are schematic diagrams of pixel circuits in two display panels provided in the embodiments of this application;
[0015] Figure 5 is a circuit timing diagram of a display panel in privacy mode according to an embodiment of this application;
[0016] Figure 6 is a circuit timing diagram of a display panel in wide viewing angle mode provided in an embodiment of this application;
[0017] Figure 7 is a circuit timing diagram of a display panel in high-brightness display mode provided in an embodiment of this application;
[0018] Figure 8 is a schematic diagram of a partial pixel arrangement structure of a display panel provided in an embodiment of this application;
[0019] Figure 9 is a schematic diagram of a partial pixel arrangement structure of a display panel provided in an embodiment of this application;
[0020] Figure 10 is a schematic diagram of a partial pixel arrangement structure of a display panel provided in an embodiment of this application;
[0021] Figures 11a to 11c are schematic diagrams of the structure of a mask for forming sub-pixels of different colors provided in the embodiments of this application.
[0022] Figure 12 is a schematic diagram of a partial pixel arrangement structure of a display panel provided in an embodiment of this application;
[0023] Figure 13 is a schematic diagram of a partial pixel arrangement structure of a display panel provided in an embodiment of this application;
[0024] Figure 14 is a schematic diagram of the structure of a display device provided in an embodiment of this application;
[0025] Figure 15 is a schematic diagram of the structure of an in-vehicle display provided in an embodiment of this application. Detailed Implementation
[0026] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.
[0028] Display panels are typically applicable to various environments, and user requirements differ depending on the situation. In some cases, such as automotive displays, controlling the optical path of the display panel is often necessary to improve driving safety, thereby achieving a privacy protection effect, reducing the impact of the displayed image on the driver, and minimizing the risk of safety hazards. However, the privacy protection effects of current display panels are often unsatisfactory; therefore, improving privacy protection has become a key research focus.
[0029] To address the aforementioned issues, in a first aspect, referring to Figures 1 to 3, this application provides a display panel 100. The display panel 100 includes first type pixels 30 and second type pixels 40. The first type pixels 30 include first sub-pixels 31 of a first color, and the second type pixels 40 include second sub-pixels 41 of the first color. The display panel 100 also includes a substrate 10, a device layer 20, and a light adjustment layer 50. The device layer 20 is disposed on one side of the substrate 10, and the light adjustment layer 50 is located on the side of the device layer 20 away from the substrate 10. The light adjustment layer 50 includes a plurality of light adjustment portions 51. The first sub-pixel 31 has a first orthographic projection on the substrate 10, and the second sub-pixel 41 has a second orthographic projection on the substrate 10. The orthographic projections of the light adjustment portions 51 on the substrate 10 at least partially overlap with the first orthographic projections. The ratio of the perimeter to the area corresponding to the first orthographic projection is greater than the ratio of the perimeter to the area corresponding to the second orthographic projection.
[0030] The substrate 10 primarily serves as a support and load-bearing structure. Other film layers and device structures are sequentially stacked on the substrate 10. Here, "stacked" refers to the sequential arrangement of the other film layers and device structures along the thickness direction Z of the substrate 10. The thickness direction Z of the substrate 10 is typically consistent with the thickness direction Z of other film layers. For ease of description, the following embodiments of this application will use the same direction to illustrate the thickness direction Z of the substrate 10 and other film layers.
[0031] Device layer 20 is disposed on one side of substrate 10 along the thickness direction Z. Device layer 20 includes multiple film layer structures stacked together. Depending on the type of display panel 100, device layer 20 may include different film layer structures. For example, if display panel 100 is liquid crystal display panel 100, device layer 20 may include a pixel electrode layer, a liquid crystal layer, and a common electrode layer. If display panel 100 is organic light-emitting display panel 100, device layer 20 may include an anode layer, a light-emitting layer 22, and a cathode layer 23 stacked together.
[0032] A light-adjusting layer 50 is disposed on the side of the device layer 20 facing away from the substrate 10. The light-adjusting layer 50 is used to adjust a portion of the light emitted from the device layer 20. Specifically, the light-adjusting layer 50 includes a light-adjusting section 51. A portion of the light emitted from the device layer 20 can illuminate the light-adjusting section 51. Due to the difference in refractive index between the light-adjusting section 51 and other adjacent film layers, as well as the influence of factors such as the shape of the light-adjusting section 51 itself, the propagation direction of the light entering the light-adjusting section 51 will change, thereby achieving the light-adjusting function and meeting the specific requirements of the display panel 100.
[0033] It should be noted that the light modulation layer 50 may only include the light modulation section 51, or the light modulation layer 50 may include other film structures in addition to the light modulation section 51. This application embodiment does not limit this. For example, the light modulation layer 50 may also include a film structure covering multiple light modulation sections 51. The film structure and the light modulation section 51 have a refractive index difference. Light irradiated into the light modulation section 51 is refracted or reflected (total internal reflection) at the interface between the light modulation section 51 and the film structure due to the refractive index difference between them, thus changing the light path.
[0034] In addition to the aforementioned film structure, the display panel 100 also includes a first type pixel 30 and a second type pixel 40. The first type pixel 30 and the second type pixel 40 are pixel structures with different functions. The first type pixel 30 and the second type pixel 40 may each include multiple sub-pixels for emitting different colors of light. The emission color of at least some sub-pixels in the first type pixel 30 may be the same as or different from the emission color of at least some sub-pixels in the first type pixel 30.
[0035] The first type of pixel 30 can be formed by stacking multiple film layer structures. Taking an organic light-emitting display panel 100 as an example, the first type of pixel 30 may include an anode located in the anode layer, a cathode located in the cathode layer, and a light-emitting part 221 located in the light-emitting layer 22 and sandwiched between the anode and the cathode. Furthermore, the first type of pixel 30 may also include a pixel circuit corresponding to the light-emitting part 221, which can control whether the first type of pixel 30 emits light. The second type of pixel 40 is similar, and will not be described further in this embodiment.
[0036] It should be noted that the specific functions of the first type of pixel 30 and the second type of pixel 40 are not limited in this embodiment. For example, the display panel 100 can be a privacy display panel 100. In this case, the first type of pixel 30 can be a sub-pixel in the display panel 100 used to implement the privacy function, and the second type of pixel 40 can be a sub-pixel in the display panel 100 used to implement the wide-viewing-angle light emission function. Specifically, the first type of pixel 30 is a sub-pixel in the display panel 100 that can implement the display function within a narrow viewing angle range, while the second type of pixel 30 is a sub-pixel in the display panel 100 that can implement the display function within a wide viewing angle range. The narrow viewing angle range is located within the wide viewing angle range.
[0037] Alternatively, the display panel 100 can also be a display panel 100 that displays different images under different viewing angles. In this case, the first type of pixel 30 can be a sub-pixel in the display panel 100 that can realize the display function within the first viewing angle range, and the second type of pixel 40 can be a sub-pixel in the display panel 100 that can realize the display function within the second viewing angle range. The first viewing angle range and the second viewing angle range do not overlap at least partially.
[0038] For ease of description, the embodiments of this application will be described below using the example of a privacy display panel 100, a first type pixel 30 as a privacy sub-pixel, and a second type pixel 40 as a wide-viewing-angle light-emitting sub-pixel (i.e., a non-privacy sub-pixel).
[0039] The first type of pixel 30 includes a first sub-pixel 31, and the second type of pixel 40 includes a second sub-pixel 41. Both the first sub-pixel 31 and the second sub-pixel 41 are of a first color, meaning that the first sub-pixel 31 and the second sub-pixel 41 emit light of the same color. The specific type of the first color is not limited in this embodiment. Optionally, the first color can be one of red, green, and blue.
[0040] The first sub-pixel 31 has a first orthographic projection on the substrate 10, and the second sub-pixel 41 has a second orthographic projection on the substrate 10. The first orthographic projection corresponds to the position of the first sub-pixel 31 on the substrate 10, and the second orthographic projection corresponds to the position of the second sub-pixel 41 on the substrate 10. Optionally, taking an organic light-emitting display panel 100 as an example, the display panel may include a pixel defining layer 60, which includes a pixel defining portion 61 and a pixel opening 62 formed by the pixel defining portion 61. The inner sidewall of the pixel opening 62 has an inclined structure, and the pixel opening 62 can define the light-emitting area of the corresponding sub-pixel. The display panel includes an anode, a cathode, and a light-emitting layer located on the substrate and located between them. The light-emitting layer contacts the anode through the pixel opening 62 of the pixel defining portion 61, and the area of the light-emitting layer in contact with the anode is the light-emitting area, i.e., the sub-pixel. That is to say, the pixel opening 62 corresponding to the sub-pixel includes an upper opening and a lower opening. The inner sidewall of the pixel opening 62 has an inclined structure. The cross-sectional shape of the sub-pixel opening along the thickness direction of the display panel should be an inverted trapezoid, that is, the upper opening is larger and the lower opening is smaller. The pixel opening 62 mentioned in the embodiment of this application is the lower opening of the pixel definition layer 60.
[0041] Different pixel openings 62 are used to define the positions of the light-emitting parts in different sub-pixels, and the light-emitting area of the sub-pixel usually corresponds to the pixel opening 62. Based on this, the first orthographic projection can be the orthographic projection of the pixel opening 62 corresponding to the first sub-pixel 31 on the substrate 10, and the second orthographic projection can be the orthographic projection of the pixel opening 62 corresponding to the second sub-pixel 41 on the substrate 10.
[0042] If the display panel 100 is a liquid crystal display panel, it typically includes a light-shielding layer located on the side of the liquid crystal layer facing away from the substrate and a light-filtering portion. The light-shielding layer includes a light-shielding material used to block part of the wiring structure within the display panel. The light-shielding layer can enclose and form multiple openings, and the light-filtering portion is disposed corresponding to these openings. Furthermore, the light-emitting area corresponding to a sub-pixel typically corresponds to an opening in the light-shielding layer. Based on this, the first orthographic projection can be the orthographic projection of the light-shielding layer opening corresponding to the first sub-pixel onto the substrate, and the second orthographic projection can be the orthographic projection of the light-shielding layer opening corresponding to the second sub-pixel onto the substrate.
[0043] Furthermore, in this embodiment, the orthographic projection of the light adjustment unit 51 on the substrate 10 at least partially overlaps with the first orthographic projection, that is, at least part of the light adjustment unit 51 can be correspondingly arranged with the first sub-pixel 31. In this way, at least part of the light emitted by the first sub-pixel 31 can illuminate the light adjustment unit 51 and change its propagation direction through the light adjustment unit 51, thereby satisfying the functional requirements corresponding to the first sub-pixel 31.
[0044] The present application does not limit the relationship between the light adjustment unit 51 and the second orthographic projection. For example, as shown in FIG2 and FIG3, the orthographic projection of the light adjustment unit 51 on the substrate 10 may be located outside the second orthographic projection, that is, the light adjustment unit 51 may not have an adjustment effect on the light emitted by the second sub-pixel 41.
[0045] Of course, in other embodiments, the orthographic projection of a single light adjustment unit 51 on the substrate 10 may overlap with both the first and second orthographic projections. In this way, the light adjustment unit 51 can adjust the light for both the first sub-pixel 31 and the second sub-pixel 41. Taking an automotive display as an example, the light adjustment unit 51 can reduce the wide-viewing-angle light emitted by the first sub-pixel 31 in the horizontal direction to achieve left and right privacy protection, reducing the risk of the driver directly observing the first sub-pixel 31 on the display panel 100 located in the passenger seat. Simultaneously, the light adjustment unit 51 can also reduce the wide-viewing-angle light emitted by the first sub-pixel 31 and the second sub-pixel 41 in the direction of vehicle gravity, thereby reducing the risk of the light emitted by the first sub-pixel 31 and the second sub-pixel 41 hitting the windshield and causing unnecessary interference to the driver.
[0046] Normally, due to factors such as the refractive index and shape of the light adjustment unit 51, the light emitted from the edge of the sub-pixel corresponding to the light adjustment unit 51 can be better adjusted and its propagation direction changed by the light adjustment unit 51. Therefore, in this embodiment, the outline of the first sub-pixel 31 is adjusted so that the ratio of the perimeter to the area of the first orthographic projection corresponding to the first sub-pixel 31 is greater than the ratio of the perimeter to the area of the second orthographic projection corresponding to the second sub-pixel 41, thereby improving the privacy protection effect of the first sub-pixel 31.
[0047] Specifically, referring to Figure 2, Figure 2 shows the first orthographic projection as a rectangle and the second orthographic projection as a triangle. The first orthographic projection includes two long sides C1 (length denoted as W11) and two short sides C2 (length denoted as W12). The perimeter of the first orthographic projection is the sum of the lengths of the two long sides C1 and the two short sides C2, i.e., 2*(W11+W12), and the area is the product of the long sides C1 and the short sides C2, i.e., W11*W12. The second orthographic projection includes three sides C3 (two right-angled sides and one hypotenuse, with lengths denoted as W21 (first right-angled side), W22 (second right-angled side), and W23 (hypotenuse)). The perimeter of the second orthographic projection is the sum of the lengths of these three sides C3, i.e., W21+W22+W23, and the area is half the product of one side C3 and its corresponding height (which is the base), i.e., (W21*W22) / 2.
[0048] The first orthographic projection has a larger perimeter-to-area ratio than the second orthographic projection, meaning that under the same area, the first orthographic projection can have a larger perimeter. In other words, when the first sub-pixel 31 and the second sub-pixel 41 have the same orthographic projection area, the first sub-pixel 31 will have a larger edge size than the second sub-pixel 41. Since the light adjustment unit 51 can better adjust the light emitted from the edge position of the first sub-pixel 31, this design helps to improve the privacy protection effect of the first sub-pixel 31 without increasing the orthographic projection area of the first sub-pixel 31.
[0049] It should be noted that the specific shapes of the first and second orthographic projections are not limited in this embodiment. The shapes corresponding to the first and second orthographic projections can be the same or different, as long as the ratio of the perimeter to the area of the first orthographic projection is greater than the ratio of the perimeter to the area of the second orthographic projection corresponding to the second sub-pixel 41. For example, both the first and second orthographic projections can be rectangular, or the first orthographic projection can be rectangular and the second orthographic projection can be triangular. Furthermore, when both the first and second orthographic projections are rectangular, the aspect ratio of the first orthographic projection needs to be greater than the aspect ratio of the second orthographic projection to meet the requirement of the ratio of the perimeter to the area of the first and second orthographic projections.
[0050] The specific dimensions of the first and second orthographic projections are not limited in this embodiment. For example, the area of the first orthographic projection can be greater than, less than, or equal to the area of the second orthographic projection. Further optionally, the corresponding areas of the first and second orthographic projections can depend on factors such as their corresponding emission duration and required emission brightness. In this embodiment, the outline of the first and second sub-pixels can be adjusted to achieve different display requirements without affecting the aperture ratio of the display panel.
[0051] Furthermore, the first type of sub-pixel may include other sub-pixels besides the first sub-pixel 31, and similarly, the second type of sub-pixel may include other sub-pixels besides the second sub-pixel 41. Further optionally, for other sub-pixels of the same color in the first and second types of sub-pixels besides the first sub-pixel 31 and the second sub-pixel 41, the ratio of the perimeter to the area of their corresponding orthographic projection can be referenced to the first sub-pixel 31 and the second sub-pixel 41. This helps to further improve the privacy protection effect of the display panel 100 and has strong practicality.
[0052] In summary, in this embodiment, by adjusting the outline of the first sub-pixel 31, the ratio of the perimeter to the area of the first orthographic projection corresponding to the first sub-pixel 31 is made greater than the ratio of the perimeter to the area of the second orthographic projection corresponding to the second sub-pixel 41, thereby providing the display panel with better privacy protection. Furthermore, by selecting appropriate shapes for the first and second sub-pixels 41 and ensuring their shapes complement each other, the aperture ratio of the display panel can be increased to a certain extent. The increase in the first sub-pixel 31 does not reduce the aperture ratio of the display panel. This also ensures that the second sub-pixel 41 has high luminous brightness, meeting the brightness requirements of the display panel 100 in wide-viewing-angle display mode, and improving the display effect and reliability of the display panel 100 in different operating modes.
[0053] This application does not limit the implementation of the pixel circuits and specific operating modes corresponding to the first sub-pixel 31 and the second sub-pixel 41. For example, the display panel 100 may include three operating modes: a privacy display mode, in which only the first sub-pixel 31 emits light, while the second sub-pixel 41 does not; a wide viewing angle display mode, in which only the second sub-pixel 41 emits light, while the first sub-pixel 31 does not; and a high-brightness display mode, in which both the first sub-pixel 31 and the second sub-pixel 41 emit light.
[0054] Taking an organic light-emitting display panel 100 as an example, where the first sub-pixel 31 includes a first light-emitting portion 221a located within the light-emitting layer 22, and the second sub-pixel 41 includes a second light-emitting portion 221b located within the light-emitting layer 22. Referring to Figures 3 to 7, in some embodiments, some structures in the pixel circuits corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be shared, and their corresponding cathodes can be electrically connected to the same second power supply signal PVEE. Specifically, Figures 4a and 4b both show eight transistors and one storage capacitor C. The first electrode of the seventh transistor T7 is connected to the anode of the first sub-pixel 31, and its control terminal is electrically connected to the first light-emitting signal EM1; the first electrode of the eighth transistor T8 is connected to the anode of the second sub-pixel 41, and its control terminal is electrically connected to the second light-emitting signal EM2.
[0055] Based on this, except for the seventh transistor T7 and the eighth transistor T8, the other transistors in the pixel circuits corresponding to the first sub-pixel 31 and the second sub-pixel 41, as well as the storage capacitor C, are shared by each other. The connection relationships and connected signals of the storage capacitor C and most of the other transistors are consistent with those in pixel circuits of related technologies, and will not be repeated in this embodiment.
[0056] It should be noted that the first terminal of the first transistor T1 is electrically connected to the first power supply signal PVDD, and the control terminal is connected to the third light-emitting signal EM3. Unlike related technologies, the third light-emitting signal EM3 is transmitted independently of the first light-emitting signal EM1 and the second light-emitting signal EM2.
[0057] Furthermore, Figures 5 to 7 are circuit timing diagrams corresponding to Figure 4a. Combining Figures 4a and 5, when the display panel 100 is in the privacy display mode, within one frame time I, the display panel 100 typically includes a reset phase, a charging phase, and a light-emitting phase. The reset phase corresponds to the t1 time period. At this time, the fifth transistor T5 and the sixth transistor T6 are in the on state. The voltage corresponding to the first reset signal VREF1 is charged to node N1, and the voltage corresponding to the second reset signal VREF2 is charged to node N4.
[0058] The charging phase corresponds to time period t2. During this period, the second transistor T2 and the fourth transistor T4 are in the on state, and the voltage corresponding to the data signal DATA is charged into the storage capacitor C. The first terminal of the third transistor T3 is electrically connected to the control terminal, forming a diode. The voltage charged into the storage capacitor C is VDATA-|VTH|. Here, VDATA represents the voltage value corresponding to the data signal DATA, and VTH represents the corresponding threshold voltage.
[0059] The light-emitting stage corresponds to time period t3. At this time, the seventh transistor T7 and the first transistor T1 are in the conducting state. The storage capacitor C maintains the voltage charged in the charging stage at the control terminal of the third transistor T3. The anode of the first sub-pixel 31 is turned on, and the first light-emitting part 221a in the first sub-pixel 31 realizes the light-emitting display.
[0060] As shown in Figures 4a and 6, when the display panel 100 is in the wide viewing angle display mode, the display panel 100 can also include a reset phase, a charging phase and a light emission phase within a frame time I. The reset phase corresponds to the t1 time period. At this time, the fifth transistor T5 and the sixth transistor T6 are in the on state. The voltage corresponding to the first reset signal VREF1 is charged to the N1 node, and the voltage corresponding to the second reset signal VREF2 is charged to the N4 node.
[0061] The charging phase corresponds to time period t2. During this period, the second transistor T2 and the fourth transistor T4 are in the on state, and the voltage corresponding to the data signal DATA is charged into the storage capacitor C. The first terminal of the third transistor T3 is electrically connected to the control terminal, forming a diode. The voltage charged into the storage capacitor C is VDATA-|VTH|. Here, VDATA represents the voltage value corresponding to the data signal DATA, and VTH represents the corresponding threshold voltage.
[0062] The light-emitting stage corresponds to time period t3. At this time, the eighth transistor T8 and the first transistor T1 are in the conducting state. The storage capacitor C maintains the voltage charged in the charging stage at the control terminal of the third transistor T3. The anode of the second sub-pixel 41 is turned on, and the second light-emitting part 221b in the second sub-pixel 41 realizes the light-emitting display.
[0063] As shown in Figures 4a, 4b and 7, when the display panel 100 is in high-brightness display mode, the display panel 100 can also include a reset phase, a charging phase and a light-emitting phase within a frame time I. The reset phase corresponds to the t1 time period. At this time, the fifth transistor T5 and the sixth transistor T6 are in the conducting state. The voltage corresponding to the first reset signal VREF1 is charged to the N1 node, and the voltage corresponding to the second reset signal VREF2 is charged to the N4 node.
[0064] The charging phase corresponds to time period t2. During this period, the second transistor T2 and the fourth transistor T4 are in the on state, and the voltage corresponding to the data signal DATA is charged into the storage capacitor C. The first terminal of the third transistor T3 is electrically connected to the control terminal, forming a diode. The voltage charged into the storage capacitor C is VDATA-|VTH|. Here, VDATA represents the voltage value corresponding to the data signal DATA, and VTH represents the corresponding threshold voltage.
[0065] The light-emitting stage corresponds to time period t3. At this time, the seventh transistor T7, the eighth transistor T8, and the first transistor T1 are all in the conducting state. The storage capacitor C maintains the voltage charged in the charging stage at the control terminal of the third transistor T3. The anodes of the first sub-pixel 31 and the second sub-pixel 41 are both turned on. The first light-emitting part 221a in the first sub-pixel 31 and the second light-emitting part 221b in the second sub-pixel 41 simultaneously realize light-emitting display.
[0066] It should be noted that Figure 4b is a schematic diagram of the pixel circuit in another case. Specifically, the operation process of the pixel circuit shown in Figure 4b includes a first reset stage, a charging stage, a second reset stage, and a light-emitting stage. The charging stage and the light-emitting stage are similar in operation to the charging stage and the light-emitting stage in the corresponding pixel circuit of Figure 4a, and will not be described again in this embodiment.
[0067] The difference is that the pixel circuit shown in Figure 4b includes two reset stages, a first reset stage and a second reset stage, while the circuit shown in Figure 4a only includes one reset stage. The first reset stage occurs before the charging stage, and during the first reset stage, the fifth transistor T5 is in the on state, and the voltage corresponding to the first reset signal VREF1 is charged to node N1.
[0068] The second reset phase occurs between the charging phase and the light-emitting phase. During the second reset phase, the sixth transistor T6 is in the on state, and the voltage corresponding to the second reset signal VREF2 is charged into node N4.
[0069] In the embodiments of this application, in both the pixel circuits shown in FIG4a and FIG4b, the multiple transistors and storage capacitor C in the pixel circuits corresponding to the first sub-pixel 31 and the second sub-pixel 41 are shared by each other. This can reduce the number of device structures used to form the pixel circuits corresponding to the first sub-pixel 31 and the second sub-pixel 41, simplify the layout of the conductors and semiconductor structures inside the display panel 100, and help reduce the manufacturing difficulty and improve the display reliability.
[0070] It should be noted that Figures 4a and 4b are illustrated using PMOS transistors (conducting at low level and cutting off at high level) as an example. In actual display panels, some or all of the transistors can be changed to NMOS transistors (conducting at high level and cutting off at low level), and the timing can be adjusted accordingly. This will not be elaborated further here.
[0071] In some embodiments, the light adjustment unit 51 includes a first surface 511 facing away from the substrate 10, and the first surface 511 is disposed in a direction facing away from the substrate 10.
[0072] The light adjustment unit 51 has a first surface 511 and a second surface 512 opposite each other in the thickness direction Z. The first surface 511 is located on the side of the second surface 512 away from the substrate 10. The first surface 511 can be directly connected to the second surface 512, or other surfaces can be connected between the first surface 511 and the second surface 512. Figure 3 shows the case where the first surface 511 and the second surface 512 are connected.
[0073] The first surface 511 protrudes away from the substrate 10, i.e., the first surface 511 is convex. Optionally, the light-adjusting layer 50 further includes a low-refractive-index layer 52 located on the side of the light-adjusting section 51 away from the substrate 10. The refractive index of the low-refractive-index layer 52 is lower than that of the light-adjusting section 51, and the low-refractive-index layer 52 can simultaneously cover multiple light-adjusting sections 51. In this case, light entering the light-adjusting section 51 will change its propagation direction at the junction of the low-refractive-index layer 52 and the light-adjusting section 51, i.e., at the first surface 511, due to the difference in refractive index, causing some wide-angle light to converge towards the center, thereby achieving the privacy function.
[0074] The specific shape of the first surface 511 is not limited in the embodiments of this application. Optionally, the first surface 511 includes an arc-shaped structure.
[0075] Because the first surface 511 is convex, the light adjustment unit 51 can have a structure similar to a convex lens. Based on this, the adjustment gain of the light adjustment unit 51 for light incident at its edge is often greater than the adjustment gain for light incident at its center. Furthermore, normally, light emitted from the edge of the first sub-pixel 31 will be incident at the edge of the light adjustment unit 51, while light emitted from the center of the first sub-pixel 31 will be incident at the center of the light adjustment unit 51.
[0076] In view of this, the outline of the first sub-pixel 31 is adjusted in this embodiment, so that the ratio of the perimeter to the area of the first orthographic projection corresponding to the first sub-pixel 31 is greater than the ratio of the perimeter to the area of the second orthographic projection corresponding to the second sub-pixel 41. In this way, the amount of light emitted at the edge of the first sub-pixel 31 can be increased without increasing the orthographic projection area of the first sub-pixel 31, thereby enhancing the adjustment effect of the light adjustment unit 51 on the light emitted from the first sub-pixel 31, which helps to further improve the privacy protection effect of the display panel 100.
[0077] In some embodiments, as shown in Figures 2 and 3, the orthographic projection of the light adjustment unit 51 on the substrate 10 at least partially covers the first orthographic projection, and the outlines of the two are compatible.
[0078] The orthographic projection of the light adjustment unit 51 onto the substrate 10 at least partially covers the first orthographic projection. The orthographic projection of the light adjustment unit 51 onto the substrate 10 may coincide with the first orthographic projection, or it may cover and exceed the first orthographic projection. This embodiment does not impose any limitations on this. Here, "coincidence" does not refer to a complete physical overlap, but rather allows for some deviation within a certain error range.
[0079] The orthographic projection of the light-adjusting unit 51 onto the substrate 10 matches the outline of the first orthographic projection. "Outline matching" here means that the shape of the orthographic projection of the light-adjusting unit 51 onto the substrate 10 is the same as the shape of the first orthographic projection, and the position of the orthographic projection of the light-adjusting unit 51 onto the substrate 10 matches the position of the first orthographic projection. Specifically, if the first orthographic projection is circular, then the orthographic projection of the light-adjusting unit 51 onto the substrate 10 is also circular, and the center of the first orthographic projection coincides with or is close to the center of the corresponding orthographic projection of the light-adjusting unit 51 onto the substrate 10. If the first orthographic projection is square, then the orthographic projection of the light-adjusting unit 51 onto the substrate 10 is also square, the center of the first orthographic projection coincides with or is close to the center of the corresponding orthographic projection of the light-adjusting unit 51 onto the substrate 10, and the aspect ratio of the first orthographic projection is the same as or close to the aspect ratio of the corresponding orthographic projection of the light-adjusting unit 51 onto the substrate 10.
[0080] In this embodiment, by at least partially covering the first orthographic projection of the light adjustment unit 51 on the substrate 10, the light emitted from the first sub-pixel 31 can better propagate to the light adjustment unit 51. Furthermore, by adapting the outlines of both components, more light emitted from the edge of the first sub-pixel 31 can propagate to the edge of the light adjustment unit 51, thereby improving the light adjustment effect of the light adjustment unit 51 on the light emitted from the first sub-pixel 31 and further enhancing the privacy protection effect of the display panel 100.
[0081] In some embodiments, referring to Figures 8 and 9, the display panel 100 includes a first group D1 and a second group D2. The first group D1 includes at least two adjacent first-type pixels 30, and the second group D2 includes at least two adjacent second-type pixels 40. At least two first groups D1 are arranged continuously along a first direction X, and at least two second groups D2 are arranged continuously along the first direction X; alternatively, the first group D1 and the second group D2 are arranged alternately along the first direction X, where the first direction X is parallel to the plane of the substrate 10. In Figures 8 and 9, the first group D1 and the second group D2 are schematically shown by dashed boxes.
[0082] It should be noted that in Figure 8 and subsequent figures, the light adjustment part corresponding to the first sub-pixel 31 is no longer shown. The specific design of the light adjustment part can be referred to Figures 2 and 3.
[0083] The first group D1 is a group in the display panel 100 that only has first type pixels 30. The first group D1 includes at least two first type pixels 30, including a first sub-pixel 31. The multiple first type pixels 30 in the first group D1 can be arranged only along the first direction X, or the multiple first type pixels 30 in the first group D1 can be arranged only along the second direction Y that intersects with the first direction X, or some of the first type pixels 30 in the first group D1 can be arranged along the first direction X and some of the first type pixels 30 can be arranged along the second direction Y, or the multiple first type pixels 30 in the first group D1 can be arranged along other directions.
[0084] The second group D2 is a group in the display panel 100 that only has second type pixels 40. The second group D2 includes at least two second type pixels 40, including a second sub-pixel 41. The multiple second type pixels 40 in the second group D2 can be arranged only along the first direction X, or the multiple second type pixels 40 in the second group D2 can be arranged only along the second direction Y, or some of the second type pixels 40 in the second group D2 can be arranged along the first direction X and some of the second type pixels 40 can be arranged along the second direction Y, or the multiple second type pixels 40 in the second group D2 can be arranged along other directions.
[0085] It should be noted that the "first direction X" and "second direction Y" mentioned here refer to two directions parallel to the plane of the substrate 10 and intersecting each other. The first direction X can be the arrangement direction of multiple sub-pixels in the display panel 100, and similarly, the second direction Y can also be the arrangement direction of multiple sub-pixels in the display panel 100. Further, the first direction X and the second direction Y can respectively correspond to the row and column directions of the multiple sub-pixels. For ease of description, this embodiment will subsequently use the first direction X as the row direction and the second direction Y as the column direction as an example. Optionally, the first direction X and the second direction Y are set perpendicularly.
[0086] The specific orientation of the first direction X needs to be determined based on the shape of the display panel 100 and the specific pixel arrangement within it. Specifically, if the display panel 100 is a square display panel 100, then the multiple sub-pixels within the display panel 100 can be arranged along at least one of the length and width directions of the display panel 100. In this case, the first direction X can be either the length or width direction of the display panel 100. The second direction Y is similar, and will not be elaborated further in this embodiment. Further optionally, the display panel may include scan lines and data lines, with the extension direction of the scan lines parallel to one of the first direction X and the second direction Y, and the extension direction of the data lines parallel to the other of the first direction X and the second direction Y.
[0087] For different first groups D1, the relative positions of at least some of the first type pixels 30 within different first groups D1 can remain consistent or may differ. This application embodiment does not impose limitations, as long as the type and quantity of first type pixels 30 within each first group D1 remain consistent. For example, referring to Figure 10, a first group D1 includes three first type pixels: red, green, and blue. The first group D1 includes a first subgroup D11 and a second subgroup D12. In the first subgroup D11, the third sub-pixel 32 and the fifth sub-pixel 33 are arranged along the second direction Y, and the first sub-pixel 31 is located to the left of the third sub-pixel 32 and the fifth sub-pixel 33 along the first direction X. In the second subgroup D12, the third sub-pixel 32 and the fifth sub-pixel 33 are arranged along the second direction Y, and the first sub-pixel 31 is located to the right of the third sub-pixel 32 and the fifth sub-pixel 33 along the first direction X. It should be noted that within different first groups D1, the arrangement order of the three first-type pixels in the first direction X can be the same or different, as long as only red, green, and blue first-type pixels are provided in different first groups D1. The same applies to the multiple second-type pixels 40 in the second group D2 (including the third subgroup D21 and the fourth subgroup D22), which will not be described again in the embodiments of this application.
[0088] As can be seen from the accompanying drawings, Figure 8 shows that the pixel arrangement in each first group D1 is consistent, while Figure 9 shows that the pixel arrangement in adjacent first groups D1 in the second direction Y is different. However, in different adjacent first groups D1, the different first type pixels 30 are arranged in a similar manner.
[0089] Furthermore, the first group D1 and the second group D2 can be arranged in various ways. Specifically, as shown in Figure 9, at least two first groups D1 can be arranged consecutively along the first direction X, and at least two second groups D2 can be arranged consecutively along the first direction X. "Consecutive arrangement" here means that there is no second group D2 between the two closest first groups D1, and similarly, there is no first group D1 between the two closest second groups D2. In other words, multiple first groups D1 are arranged adjacently and repeatedly along the first direction X, and multiple second groups D2 are arranged adjacently and repeatedly along the first direction X.
[0090] Alternatively, as shown in Figure 8, the first group D1 and the second group D2 can be alternately set along the first direction X. That is, the first group D1 and the second group D2 can be arranged along the first direction X, and a second group D2 is set between the two closest first groups D1 in the first direction X, and a first group D1 is set between the two closest second groups D2 in the first direction X.
[0091] In this embodiment, at least two first-type pixels 30 can form a first group D1, and at least two second-type pixels 40 can form a second group D2. Based on this, by adjusting the continuous arrangement of at least two first-type pixels 30 and at least two second-type pixels 40, or by adjusting the alternating arrangement of the first-type pixels 30 and the second-type pixels 40, the first-type pixels 30 and the second-type pixels 40 can be flexibly distributed at various positions on the display panel 100, and the corresponding distribution states of the first-type pixels 30 and the second-type pixels 40 can be the same or similar, thereby reducing the display differences caused by the difference in the light emission effects of the first-type pixels 30 and the second-type pixels 40, and helping to improve display uniformity.
[0092] In some embodiments, referring to Figures 8 and 10, the first group D1 and the second group D2 are arranged alternately along the first direction X and the second direction Y; or, the first group D1 and the second group D2 are arranged alternately along the first direction X, a plurality of first groups D1 are arranged continuously along the second direction Y, a plurality of second groups D2 are arranged continuously along the second direction Y, and the first direction X intersects the second direction Y. Optionally, the first direction X is perpendicular to the second direction Y.
[0093] The first group D1 and the second group D2 can have various layouts, as shown in Figure 8. The first group D1 and the second group D2 are arranged alternately along the first direction X and the second direction Y. That is, in the first direction X, a second group D2 is placed between the two closest first group D1s, and a first group D1 is placed between the two closest second group D2s. Similarly, in the second direction Y, a second group D2 is placed between the two closest first group D1s, and a first group D1 is placed between the two closest second group D2s.
[0094] Alternatively, as shown in Figure 10, the first group D1 and the second group D2 are arranged alternately along the first direction X, multiple first groups D1 are arranged continuously along the second direction Y, and multiple second groups D2 are arranged continuously along the second direction Y. That is, a second group D2 is placed between the two closest first groups D1 in the first direction X, and a first group D1 is placed between the two closest second groups D2 in the first direction X. Furthermore, multiple first groups D1 are arranged adjacently and repeatedly in the second direction Y, and multiple second groups D2 are arranged adjacently and repeatedly in the second direction Y.
[0095] This application provides two arrangement methods for the first group D1 and the second group D2, allowing for flexible adjustment of their relative positions according to different needs. Both arrangement methods ensure that the first group D1 and the second group D2 are evenly distributed across the display panel 100 in the first direction X, thereby improving display uniformity while meeting various requirements and demonstrating strong practicality.
[0096] In some embodiments, as shown in Figures 8 to 10, the first type pixel 30 further includes a third sub-pixel 32 of the second color, and the second type pixel 40 further includes a fourth sub-pixel 42 of the second color; the first group D1 includes a first sub-pixel 31 and a third sub-pixel 32, and the second group D2 includes a second sub-pixel 41 and a fourth sub-pixel 42. Specifically, in the first group D1 and the second group D2, which are adjacent to each other along the first direction X, the first sub-pixel 31 and the second sub-pixel 41 are adjacent to each other along the first direction X.
[0097] The first sub-pixel 31 and the second sub-pixel 41 are different types of sub-pixels that emit light of the same color, and the third sub-pixel 32 and the fourth sub-pixel 42 are also different types of sub-pixels that emit light of the same color. The first color corresponding to the first sub-pixel 31 and the second color corresponding to the third sub-pixel 32 are not the same. Optionally, the first color and the second color are one of red, blue, and green, respectively.
[0098] The first group D1 includes both a first sub-pixel 31 and a third sub-pixel 32. The first group D1 may include only one first sub-pixel 31, or it may include multiple first sub-pixels 31. Similarly, the first group D1 may include only one third sub-pixel 32, or it may include multiple third sub-pixels 32. This application embodiment does not impose any limitations on this.
[0099] Similarly, the second group D2 includes both a second sub-pixel 41 and a fourth sub-pixel 42. The second group D2 may include only one second sub-pixel 41, or it may include multiple second sub-pixels 41. Furthermore, the second group D2 may include only one fourth sub-pixel 42, or it may include multiple fourth sub-pixels 42. This application embodiment does not impose any limitations on this.
[0100] The embodiments of this application do not limit the arrangement of the first sub-pixel 31 and the third sub-pixel 32 in the first group D1, or the arrangement of the second sub-pixel 41 and the fourth sub-pixel 42 in the second group D2. Optionally, the number of first sub-pixels 31 in the first group D1 is the same as the number of second sub-pixels 41 in the second group D2, and the number of third sub-pixels 32 in the first group D1 is the same as the number of fourth sub-pixels 42 in the second group D2. Furthermore, the arrangement of the first sub-pixels 31 and the third sub-pixels 32 in the first group D1 is the same as or similar to the arrangement of the second sub-pixels 41 and the fourth sub-pixels 42 in the second group D2.
[0101] Based on the foregoing, the first group D1 and the second group D2 can be arranged alternately along the first direction X. In this case, the first group D1 and the second group D2 can be arranged adjacent to each other along the first direction X. Furthermore, in the first group D1 and the second group D2 arranged adjacent to each other along the first direction X, the first sub-pixel 31 and the second sub-pixel 41 are arranged adjacent to each other, that is, the first sub-pixel 31 in the first group D1 and the second sub-pixel 41 in the second group D2 are arranged in the first direction X, and there are no other sub-pixels between them.
[0102] It should be noted that the display panel 100 may include multiple repeating units arranged along the first direction X and the second direction Y. Here, "repeating unit" refers to the smallest repeating unit composed of multiple sub-pixels. The types, numbers, arrangements, and sizes and shapes of the sub-pixels included in different repeating units are all consistent.
[0103] Furthermore, the adjacent first group D1 and second group D2 can together constitute a repeating unit. Based on this, there are adjacent first groups D1 and second groups D2 that are adjacent to the first sub-pixel 31 and the second sub-pixel 41 in the first direction X. They can be located in the same repeating unit or in different repeating units. This application embodiment does not limit this.
[0104] In this embodiment, by alternating the arrangement of the first group D1 and the second group D2 in the first direction X, and controlling the relative positions of the first sub-pixels 31 within the first group D1 and the relative positions of the third sub-pixels 32 within the second group D2, the first sub-pixels 31 and the second sub-pixels 41 can be arranged adjacent to each other in the first direction X. Furthermore, since the first sub-pixels 31 and the second sub-pixels 41 have the same emission color, when the display panel 100 is an organic light-emitting display panel 100, the light-emitting portions 221 corresponding to the first sub-pixels 31 and the second sub-pixels 41 can be connected and integrally arranged.
[0105] Furthermore, since the privacy display effect of the first sub-pixel 31 is achieved through its cooperation with the light adjustment unit 51, rather than by adjusting the material of the light-emitting part 221 corresponding to the first sub-pixel 31, the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be made of the same material and thus can be fabricated together using the same mask. Based on this, since the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 are integrally connected, the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be fabricated together using the same mask opening.
[0106] Specifically, please refer to Figures 10 and 11a. Figure 11a shows a schematic diagram of the corresponding structure of the first mask plate 71 used to form the first sub-pixel 31 and the second sub-pixel 41 in Figure 10. The first mask plate is provided with a first mask opening 711, and a single first mask opening 711 is used for vapor deposition to form the light-emitting part 221 corresponding to the adjacent first sub-pixel 31 and the second sub-pixel 41.
[0107] In related technologies, privacy-protected sub-pixels and non-privacy-protected sub-pixels with the same emission color are typically spaced apart and formed using different mask openings. Considering the influence of factors such as mask fabrication processes, it is usually difficult to further reduce the distance between adjacent mask openings. The existence of the distance between adjacent mask openings makes it difficult to further increase the size of the light-emitting parts 221 corresponding to privacy-protected sub-pixels and non-privacy-protected sub-pixels with the same emission color. Consequently, it is difficult to further increase the pixel density or the size of a single pixel in the display panel, i.e., it is difficult to improve the aperture ratio of the display panel.
[0108] In this embodiment, since the light-emitting portions 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be fabricated together using the same mask, the size of the light-emitting portions 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 is not affected by the distance between adjacent mask openings. This helps to increase the size of the light-emitting portions 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41, thereby improving the aperture ratio of the display panel. It should be noted that although the light-emitting portions 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be connected as a single unit, since the anodes of the first sub-pixel 31 and the second sub-pixel 41 are insulated from each other, or the cathodes of the first sub-pixel 31 and the second sub-pixel 41 are insulated from each other, the light-emitting portions 221 in the first sub-pixel 31 and the second sub-pixel 41 can still operate independently under the control of the cathode and anode, thereby meeting the switching needs of the display panel 100 in different modes.
[0109] In some embodiments, as shown in Figures 8 to 10, the first type of pixel 30 includes a fifth sub-pixel 33 of a third color, and the second type of pixel 40 includes a sixth sub-pixel 43 of a third color. The first group D1 includes at least one first sub-pixel 31, one third sub-pixel 32, and one fifth sub-pixel 33. The third sub-pixel 32 and the fifth sub-pixel 33 are arranged along the second direction Y. The first sub-pixel 31 and the third sub-pixel 32 at least partially overlap along the first direction X, and the first sub-pixel 31 and the fifth sub-pixel 33 at least partially overlap along the first direction X.
[0110] The second group D2 includes at least a second sub-pixel 41, a fourth sub-pixel 42, and a sixth sub-pixel 43. The fourth sub-pixel 42 and the sixth sub-pixel 43 are arranged along the second direction Y. The second sub-pixel 41 and the fourth sub-pixel 42 overlap at least partially along the first direction X. The second sub-pixel 41 and the sixth sub-pixel 43 overlap at least partially along the first direction X.
[0111] The fifth sub-pixel 33 and the sixth sub-pixel 43 are different types of sub-pixels that emit the same color light. The first color corresponding to the first sub-pixel 31, the second color corresponding to the third sub-pixel 32, and the third color corresponding to the fifth sub-pixel 33 are all different. Optionally, the first color, the second color, and the third color are one of red, blue, and green, respectively.
[0112] Within the first group D1, the third sub-pixel 32 and the fifth sub-pixel 33 are arranged in the second direction Y, that is, the third sub-pixel 32 and the fifth sub-pixel 33 are spaced apart in the first direction X and at least partially overlap along the second direction Y. The first sub-pixel 31 overlaps with both the third sub-pixel 32 and the fifth sub-pixel 33 in the first direction X. Specifically, the first sub-pixel 31 may overlap with at least one of the third sub-pixel 32 and the fifth sub-pixel 33 in the second direction Y, or the first sub-pixel 31 may be staggered with both the third sub-pixel 32 and the fifth sub-pixel 33 in the second direction Y. This embodiment does not impose any limitations on this arrangement. Furthermore, the arrangement of the plurality of second-type pixels 40 within the second group D2 is similar, and will not be described further in this embodiment.
[0113] It should be noted that although the arrangement of the multiple first-type pixels 30 in the first group D1 and the arrangement of the multiple second-type pixels 40 in the second group D2 follow the same layout pattern, there are certain differences in their corresponding arrangements. Specifically, referring to Figure 8, in order to achieve the adjacent setting of the first sub-pixel 31 and the second sub-pixel 41, the first sub-pixel 31 in the first group D1 needs to be located to the left of the third sub-pixel 32 and the fifth sub-pixel 33, while the second sub-pixel 41 in the second group D2 needs to be located to the right of the fourth sub-pixel 42 and the sixth sub-pixel 43. In other words, the first sub-pixel 31 and the second sub-pixel 41 are located on different sides of the third sub-pixel 32 and the fourth sub-pixel 42, respectively.
[0114] In this embodiment, the pixel arrangement of different sub-pixels in the first group D1 and the arrangement of different sub-pixels in the second group D2 are both common arrangement methods. Based on this, by adjusting the alternating arrangement of the first group D1 and the second group D2 in the first direction X, and by adjusting the first sub-pixel 31 and the second sub-pixel 41 to be located on different sides of the third sub-pixel 32 and the fourth sub-pixel 42 respectively, adjacent arrangement of the first sub-pixel 31 and the second sub-pixel 41 in the first group D1 and the second group D2 in the first direction X can be achieved. This design is simple and allows the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 to be connected as a single unit and fabricated together using the same mask. Thus, the size of the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 is not affected by the distance between adjacent mask openings, thereby helping to increase the size of the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 and improving the aperture ratio of the display panel.
[0115] In some embodiments, in the first group D1 and the second group D2 arranged adjacent to each other along the first direction X, the third sub-pixel 32 and the fourth sub-pixel 42 are arranged adjacent to each other along the first direction X, and the fifth sub-pixel 33 and the sixth sub-pixel 43 are arranged adjacent to each other along the first direction X.
[0116] By adopting the above arrangement, not only can the first sub-pixel 31 and the second sub-pixel 41 be arranged adjacently, but the third sub-pixel 32 and the fourth sub-pixel 42 can also be arranged adjacently, meaning that there are no other sub-pixels between the third sub-pixel 32 and the fourth sub-pixel 42. Furthermore, the fifth sub-pixel 33 and the sixth sub-pixel 43 can also be arranged adjacently, meaning that there are no other sub-pixels between the fifth sub-pixel 33 and the sixth sub-pixel 43.
[0117] Based on this, when the display panel 100 is an organic light-emitting display panel 100, since the third sub-pixel 32 and the fourth sub-pixel 42 have the same light-emitting color, their corresponding light-emitting portions 221 can be connected and integrally disposed. Similarly, since the fifth sub-pixel 33 and the sixth sub-pixel 43 have the same light-emitting color, their corresponding light-emitting portions 221 can be connected and integrally disposed. Furthermore, the light-emitting portions 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 can be formed together using the same mask opening, and the light-emitting portions 221 corresponding to the fifth sub-pixel 33 and the sixth sub-pixel 43 can be formed together using the same mask opening.
[0118] Specifically, referring to Figures 10 and 11a-11c, Figure 11a shows a schematic diagram of the corresponding structure of the first mask 71 used to form the first sub-pixel 31 and the second sub-pixel 41 in Figure 10; Figure 11b shows a schematic diagram of the corresponding structure of the second mask 72 used to form the third sub-pixel 32 and the fourth sub-pixel 42 in Figure 10; and Figure 11c shows a schematic diagram of the corresponding structure of the third mask 73 used to form the fifth sub-pixel 33 and the sixth sub-pixel 43 in Figure 10. The first mask 71 has a first mask opening 711, and a single first mask opening 711 is used for vapor deposition to form the light-emitting portion 221 corresponding to adjacent first sub-pixel 31 and second sub-pixel 41. The third mask 73 has a third mask opening 731, and a single third mask opening 731 is used for vapor deposition to form the light-emitting portion 221 corresponding to adjacent fifth sub-pixel 33 and sixth sub-pixel 43.
[0119] Under this design, the size of the light-emitting part 221 corresponding to the third sub-pixel 32, the fourth sub-pixel 42, the fifth sub-pixel 33 and the sixth sub-pixel 43 will not be affected by the distance between adjacent mask openings, which helps to increase the size of the light-emitting part 221 corresponding to the third sub-pixel 32, the fourth sub-pixel 42, the fifth sub-pixel 33 and the sixth sub-pixel 43, and improve the aperture ratio of the display panel.
[0120] In some embodiments, the first color is blue, the second color is green, and the third color is red.
[0121] Considering that the lifespan of the sub-pixel used to emit blue light is often shorter than that of sub-pixels of other colors, and that the first sub-pixel 31 can have a larger size in the second direction Y compared to the third sub-pixel 32 and the fifth sub-pixel 33, and the second sub-pixel 41 can have a larger size in the second direction Y compared to the fourth sub-pixel 42 and the sixth sub-pixel 43, this embodiment sets the first color to blue, and the second and third colors to green and red, respectively. This allows the sub-pixel used to emit blue light to have a larger size in the second direction Y compared to sub-pixels of other colors, thereby improving the lifespan of the sub-pixel used to emit blue light while meeting the requirements of color display.
[0122] In some alternative embodiments, the orthographic projection area corresponding to the first sub-pixel 31 is greater than the orthographic projection areas corresponding to the third sub-pixel 32 and the fifth sub-pixel 33, and the orthographic projection area corresponding to the second sub-pixel 41 is greater than the orthographic projection areas corresponding to the fourth sub-pixel 42 and the sixth sub-pixel 43.
[0123] In some embodiments, as shown in FIG8, a first group D1 and a second group D2 arranged adjacently along a first direction X constitute a pixel group P. In a single pixel group P, a first sub-pixel 31 and a second sub-pixel 41 are arranged adjacently. The first sub-pixel 31 has a first side B1 facing the second sub-pixel 41, and a fourth sub-pixel 42 has a second side B2 facing the adjacent third sub-pixel 32. In a single pixel group P, the distance between the first side B1 and the second side B2 along the first direction X is L1. In two adjacent pixel groups P, the distance between the first side B1 in one pixel group P and the second side B2 in the other pixel group P along the first direction X is L2. Different fourth sub-pixels 42 located in adjacent rows along the second direction Y are separated by a distance L3 along the second direction Y, where L3 = L1 + L2.
[0124] In the first direction X, a first group D1 and a second group D2, which are adjacent to each other, together form a pixel group P. The pixel group P can be a repeating unit in the display panel 100, or the repeating unit can include multiple pixel groups P. This application embodiment does not limit this. In the structure shown in FIG8, the repeating unit is a single pixel group P.
[0125] The first edge B1 is an edge in the first sub-pixel 31 that faces the adjacent second sub-pixel 41. The first edge B1 can be parallel to the second direction Y, or it can intersect the second direction Y. The second edge B2 is an edge in the fourth sub-pixel 42 that faces the adjacent third sub-pixel 32. The second edge B2 can be parallel to the second direction Y, or it can intersect the second direction Y. The relationship between the first edge B1 and the second edge B2 is not limited in this embodiment. Exemplarily, the first edge B1 can be parallel to the second edge B2, or it can intersect the second edge B2.
[0126] L1 is the distance along the first direction X between the first edge B1 and the second edge B2 in a single pixel group P. This distance refers to the length of the line segment formed by connecting the centers of the first edge B1 and the second edge B2 within the single pixel group P, along the first direction X. Similarly, L2 is the distance along the first direction X between the first edge B1 of one pixel group P and the second edge B2 of the other pixel group P in two adjacent pixel groups P. This distance refers to the length of the line segment formed by connecting the centers of the first edge B1 in one pixel group P and the centers of the second edge B2 in the other pixel group P, along the first direction X.
[0127] L3 represents the distance between different fourth sub-pixels 42 located in adjacent rows along the second direction Y. Based on the foregoing, the first direction X can be a row direction, and the second direction Y can be a column direction. Multiple sub-pixels arranged side-by-side along the first direction X form a pixel row. Therefore, the different fourth sub-pixels 42 located in adjacent rows mentioned here refer to the two fourth sub-pixels 42 in the two closest pixel rows among the multiple pixel rows composed of multiple fourth sub-pixels 42.
[0128] Further, L3 is the distance between the two fourth sub-pixels 42 in the second direction Y. This distance refers to the dimension of the line connecting the corresponding positions of the two fourth sub-pixels 42 in the second direction Y. Optionally, it can be the dimension of the line connecting the centers of the two fourth sub-pixels 42 in the second direction Y, or it can be the dimension of the line connecting the corresponding positions on the same side of the two fourth sub-pixels 42 in the second direction Y.
[0129] Referring to Figure 8, L3 represents the size of a single pixel group P in the second direction Y, while L1+L2 represents the size of a single pixel group P in the first direction X. In this embodiment, by setting L3 equal to L1+L2, the size of a single pixel group P is the same in both the first direction X and the second direction Y, i.e., the pixel group P has a square structure. This design helps to make the arrangement of multiple pixel groups P in the first direction X and the second direction Y more similar, thereby improving the display uniformity of the display panel 100 at different positions in the first direction X and the second direction Y, and also helps to reduce the difficulty of pixel layout, making the sub-pixel arrangement more compact and improving the display effect.
[0130] In some embodiments, referring to FIG12, in the first group D1 and the second group D2 arranged adjacent to each other along the second direction Y, the third sub-pixel 32 and the fourth sub-pixel 42 are arranged adjacent to each other in the second direction Y, and the first direction X intersects the second direction Y. The adjacent arrangement mentioned here means that there are no other sub-pixels between the third sub-pixel 32 and the fourth sub-pixel 42.
[0131] In this embodiment, by adjusting the relative positions between the first sub-pixel 31 and the third sub-pixel 32 within the first group D1, and the relative positions between the second sub-pixel 41 and the fourth sub-pixel 42 within the second group D2, the first sub-pixel 31 and the second sub-pixel 41 are arranged adjacent to each other in the first direction X, while the third sub-pixel 32 and the fourth sub-pixel 42 are arranged adjacent to each other in the second direction Y. Furthermore, in this design, the light-emitting portions 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be integrally connected in the first direction X, and the light-emitting portions 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 can be integrally connected in the second direction Y. In this way, the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be formed together using the same mask opening, and the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 can be formed together using the same mask opening. In this way, the size of the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 will not be affected by the distance between adjacent mask openings, which helps to increase the size of the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 and improve the aperture ratio of the display panel.
[0132] It should be noted that when the first group D1 includes a fifth sub-pixel 33 and the second group D2 includes a sixth sub-pixel 43, the relative positional relationship between the fifth sub-pixel 33 and the sixth sub-pixel 43 is not limited in this embodiment. Optionally, in the first group D1 and the second group D2 arranged adjacent to each other along the first direction X, the fifth sub-pixel 33 and the sixth sub-pixel 43 are arranged adjacent to each other.
[0133] In some embodiments, as shown in FIG12, the first type pixel 30 includes a fifth sub-pixel 33 of a third color, the second type pixel 40 includes a sixth sub-pixel of a third color, and the first group D1 includes at least one first sub-pixel 31, two third sub-pixels 32 and one fifth sub-pixel 33. The first sub-pixel 31 and the fifth sub-pixel 33 are arranged along a first direction X, and the two third sub-pixels 32 are arranged along a second direction Y. The first sub-pixel 31, the third sub-pixel 32, the fifth sub-pixel 33 and the third sub-pixel 33 are arranged sequentially along the circumferential direction of the center of the first group D1.
[0134] The second group D2 includes at least one second sub-pixel 41, two fourth sub-pixels 42 and one sixth sub-pixel 43. The second sub-pixel 41 and the sixth sub-pixel 43 are arranged along the first direction X, and the two fourth sub-pixels 42 are arranged along the second direction Y. The second sub-pixel 41, the fourth sub-pixel 42, the sixth sub-pixel 43 and the fourth sub-pixel 43 are arranged sequentially along the circumference of the center of the second group D2.
[0135] In the first group D1, the first sub-pixel 31 and the fifth sub-pixel 33 are arranged along the first direction X, that is, the first sub-pixel 31 and the fifth sub-pixel 33 overlap in the first direction X. Two third sub-pixels 32 are arranged along the second direction Y, that is, the two third sub-pixels 32 overlap in the second direction Y. The first sub-pixel 31, the third sub-pixel 32, the fifth sub-pixel 33, and the third sub-pixel 32 are arranged sequentially along the circumferential direction of the center of the first group D1. The center of the first group D1 mentioned here refers to the geometric center of the area where the first group D1 is located. Furthermore, the first sub-pixel 31, the third sub-pixel 32, the fifth sub-pixel 33, and the third sub-pixel 32 are located at different peripheral positions around the center of the first group D1, and are arranged sequentially around the center of the first group D1.
[0136] In some alternative embodiments, along the first direction X, the third sub-pixel 32 at least partially overlaps with the first sub-pixel 31 and the fifth sub-pixel 33; and / or, along the second direction Y, the third sub-pixel 32 at least partially overlaps with the first sub-pixel 31 and the fifth sub-pixel 33.
[0137] In the second group D2, the second sub-pixel 41 and the sixth sub-pixel 43 are arranged along the first direction X, that is, the second sub-pixel 41 and the sixth sub-pixel 43 overlap in the first direction X. Two fourth sub-pixels 42 are arranged along the second direction Y, that is, the two fourth sub-pixels 42 overlap in the second direction Y. The second sub-pixel 41, the fourth sub-pixel 42, the sixth sub-pixel 43, and the fourth sub-pixel 42 are arranged sequentially along the circumferential direction of the center of the second group D2. The center of the second group D2 mentioned here refers to the geometric center of the region where the second group D2 is located. Furthermore, the second sub-pixel 41, the fourth sub-pixel 42, the sixth sub-pixel 43, and the fourth sub-pixel 42 are located at different peripheral positions around the center of the second group D2, and are arranged sequentially around the center of the second group D2.
[0138] In some alternative embodiments, along the first direction X, the fourth sub-pixel 42 at least partially overlaps with the second sub-pixel 41 and the sixth sub-pixel 43; and / or, along the second direction Y, the fourth sub-pixel 42 at least partially overlaps with the second sub-pixel 41 and the sixth sub-pixel 43.
[0139] The specific colors of the first, second, and third colors are not limited in the embodiments of this application. Optionally, the first color is blue, the second color is green, and the third color is red.
[0140] In this embodiment, by adopting the above pixel layout, the first sub-pixel 31 and the second sub-pixel 41 can be arranged adjacently in the first direction X, the third sub-pixel 32 and the fourth sub-pixel 42 can be arranged adjacently in the second direction Y, and the fifth sub-pixel 33 and the sixth sub-pixel 43 can be arranged adjacently in the first direction X. This allows the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 to be connected as one unit, the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 to be connected as one unit, and the light-emitting parts 221 corresponding to the fifth sub-pixel 33 and the sixth sub-pixel 43 to be connected as one unit. In this way, the size of the light-emitting parts 221 corresponding to the fifth sub-pixel 33 and the sixth sub-pixel 43 will not be affected by the distance between adjacent mask openings, thereby helping to increase the size of the light-emitting parts 221 corresponding to the fifth sub-pixel 33 and the sixth sub-pixel 43 and improve the aperture ratio of the display panel.
[0141] In some embodiments, referring to FIG13, the display panel 100 further includes a third group D3 and a fourth group D4 arranged along a first direction X. The third group D3 includes at least two adjacent first type pixels 30, and the fourth group D4 includes at least two adjacent second type pixels 40. At least one first type pixel 30 in the first group D1 emits a different color than each first type pixel 30 in the third group D3, and at least one second type pixel 40 in the second group D2 emits a different color than each second type pixel 40 in the fourth group D4. Adjacent first groups D1 and second groups D2 constitute a first pixel group P1, and adjacent third groups D3 and fourth groups D4 constitute a second pixel group P2. The first pixel group P1 and the second pixel group P2 are alternately arranged along a second direction Y, and the first direction X intersects the second direction Y.
[0142] Similar to the first group D1, the third group D3 is also a group in the display panel 100 that only has first-type pixels 30. The difference is that the types of first-type pixels 30 in the first group D1 are different from those in the third group D3. Furthermore, the number of first-type pixels 30 in the first group D1 can be the same as or different from the number of first-type pixels 30 in the third group D3. Also, the arrangement of the multiple first-type pixels 30 in the first group D1 can be the same as or different from the arrangement of the multiple first-type pixels 30 in the third group D3. The relationship between the second group D2 and the fourth group D4 is similar, and will not be repeated in this embodiment.
[0143] The first pixel group D1 and the second pixel group D2 are adjacent to each other and form the first pixel group P1. "Adjacent" here means that there are no other pixels between the first pixel group D1 and the second pixel group D2. The third pixel group D3 and the fourth pixel group D4 are adjacent to each other and form the second pixel group P2. Optionally, the adjacent first pixel group P1 and the second pixel group P2 can together form a repeating unit.
[0144] In this embodiment, multiple first pixel groups P1 can be arranged continuously in the first direction X, and multiple second pixel groups P2 can be arranged continuously in the first direction X. Furthermore, the first pixel groups P1 and P2 are alternately arranged along the second direction Y. This design also allows the first sub-pixel 31 and the second sub-pixel 41 to be arranged adjacently in the first direction X, thereby reducing the manufacturing difficulty of the display panel 100. Moreover, different display effects can be achieved by adjusting the composition of the first type pixels 30 within each of the first group D1 and the third group D3, and the composition of the second type pixels 40 within each of the second group D2 and the fourth group D4, thus demonstrating strong practicality.
[0145] In some embodiments, as shown in FIG13, the first type pixel 30 includes a fifth sub-pixel 33 of the third sub-pixel 32, and the second type pixel 40 includes a sixth sub-pixel 43 of the third color. The first group D1 includes a first sub-pixel 31 and a third sub-pixel 32, the second group D2 includes a second sub-pixel 41 and a fourth sub-pixel 42, the third group D3 includes a third sub-pixel 32 and a fifth sub-pixel 33, and the fourth group D4 includes a fourth sub-pixel 42 and a sixth sub-pixel 43.
[0146] In the first group D1 and the second group D2 that are adjacent to each other along the first direction X, the first sub-pixel 31 and the second sub-pixel 41 are adjacent to each other along the first direction X. In the remaining first group D1 and the second group D2 that are adjacent to each other, the third sub-pixel 32 and the fourth sub-pixel 42 are adjacent to each other along the first direction X.
[0147] In the third group D3 and the fourth group D4, which are adjacent to each other along the first direction X, the third sub-pixel 32 and the fourth sub-pixel 42 are adjacent to each other along the first direction X. In the remaining adjacent third group D3 and the fourth group D4, the fifth sub-pixel 33 and the sixth sub-pixel 43 are adjacent to each other along the first direction X.
[0148] The first group D1 includes a first sub-pixel 31 and a third sub-pixel 32 arranged along the first direction X, that is, in the first group D1, the first sub-pixel 31 and the third sub-pixel 32 overlap along the first direction X. The second group D2 includes a second sub-pixel 41 and a fourth sub-pixel 42 arranged along the first direction X, that is, in the second group D2, the second sub-pixel 41 and the fourth sub-pixel 42 overlap along the first direction X.
[0149] The third group D3 includes a third sub-pixel 32 and a fifth sub-pixel 33 arranged along the first direction X, that is, in the third group D3, the third sub-pixel 32 and the fifth sub-pixel 33 overlap along the first direction X. The fourth group D4 includes a fourth sub-pixel 42 and a sixth sub-pixel 43 arranged along the first direction X, that is, in the fourth group D4, the fourth sub-pixel 42 and the sixth sub-pixel 43 overlap along the first direction X.
[0150] In this embodiment, the pixel arrangement described above allows the first sub-pixel 31 and the second sub-pixel 41 to be arranged adjacent to each other along the first direction X, as well as the third sub-pixel 32 and the fourth sub-pixel 42, and the fifth sub-pixel 33 and the sixth sub-pixel 43, all along the first direction X. Furthermore, this design allows the number of third sub-pixels 32 to be twice that of the first sub-pixels 31 and the fifth sub-pixels 33, and the number of fourth sub-pixels 42 to be twice that of the second sub-pixels 41 and the sixth sub-pixels 43, thereby improving the display effect.
[0151] Alternatively, the first color is blue, the second color is green, and the third color is red, with the third sub-pixel 32 and the fourth sub-pixel 42 used to emit green light. Compared to other colors of light, the human eye is more sensitive to green light. Based on this, by adjusting the number of the third sub-pixel 32 to be greater than the number of the first sub-pixel 31 and the fifth sub-pixel 33, and the number of the fourth sub-pixel 42 to be greater than the number of the second sub-pixel 41 and the sixth sub-pixel 43, the user's viewing experience of the display panel 100 is improved.
[0152] In some embodiments, as shown in FIG8, in the adjacent first sub-pixel 31 and second sub-pixel 41, the first sub-pixel 31 has a first side B1 facing the first sub-pixel 31, and the second sub-pixel 41 has a third side B3 facing the first sub-pixel 31, with the first side B1 parallel to the third side B3.
[0153] The first side B1 is the side of the first sub-pixel 31 facing the adjacent second sub-pixel 41, and the third side B3 is the side of the second sub-pixel 41 facing the adjacent first sub-pixel 31. That is, there are no other sub-pixels between the first side B1 and the third side B3. The first side B1 and the third side B3 are arranged parallel to each other. The first side B1 and the third side B3 can be parallel to the second direction Y, or they can intersect with the second direction Y; this embodiment does not impose any limitations. Optionally, both the first side B1 and the third side B3 are parallel to the second direction Y.
[0154] It should be noted that, considering the influence of manufacturing process precision and other factors, the first side B1 and the third side B3 may not be perfectly straight, and the extension directions of the first side B1 and the third side B3 may not be physically perfectly parallel. Therefore, the parallelism mentioned in the embodiments of this application refers to the fact that the overall extension trend of the first side B1 can be the same as or similar to the overall extension trend of the third side B3.
[0155] In this embodiment, in the adjacent first sub-pixel 31 and second sub-pixel 41, the first side B1 is parallel to the third side B3. This helps to reduce the distance between the adjacent first sub-pixel 31 and second sub-pixel 41, thereby increasing the aperture ratio of the display panel 100 and enhancing the display effect. Further optionally, in the adjacent third sub-pixel 32 and fourth sub-pixel 42, the side of the third sub-pixel 32 facing the fourth sub-pixel 42 is parallel to the side of the fourth sub-pixel 42 facing the third sub-pixel 32; and / or, in the adjacent fifth sub-pixel 33 and sixth sub-pixel 43, the side of the fifth sub-pixel 33 facing the sixth sub-pixel 43 is parallel to the side of the sixth sub-pixel 43 facing the fifth sub-pixel 33.
[0156] In some embodiments, the first orthographic projection is a rectangle with an aspect ratio of not less than 3; and / or, the second orthographic projection is a triangle with a ratio of the longest side to the shortest side of the triangle not greater than 1.5.
[0157] For a rectangle, the larger the aspect ratio, the larger the ratio of its perimeter to its area. Therefore, in this embodiment, the first orthographic projection, which is rectangular, is set to have an aspect ratio of not less than 3. This helps to increase the length of the edge corresponding to the first sub-pixel 31 without additionally increasing the size of the pixel opening 62, thereby improving the privacy protection effect of the first sub-pixel 31.
[0158] For a triangle, the larger the ratio of the longest side to the shortest side, the larger the ratio of its perimeter to its area. However, for the second sub-pixel 41, since it does not need to provide a privacy protection effect, it does not need to have a large edge length. Furthermore, if the ratio of the longest side to the shortest side of the triangle corresponding to the second orthographic projection is too large, it can easily affect the layout of other sub-pixels and is not conducive to the emission of the second sub-pixel 41. Therefore, in this embodiment, the ratio of the longest side to the shortest side of the triangle corresponding to the second orthographic projection is set to no more than 1.5 to meet the actual needs of the display panel 100.
[0159] In some embodiments, the first type pixel 30 includes a third sub-pixel 32 of the second color, and the second type pixel 40 includes a fourth sub-pixel 42 of the second color. The third sub-pixel 32 can have a third orthographic projection on the substrate 10, and the fourth sub-pixel 42 has a fourth orthographic projection on the substrate 10. The area ratio of the first orthographic projection to the third orthographic projection is equal to the area ratio of the second orthographic projection to the fourth orthographic projection.
[0160] The first sub-pixel 31 and the third sub-pixel 32 are both sub-pixels that can provide privacy protection, while the second sub-pixel 41 and the fourth sub-pixel 42 are both sub-pixels that can achieve wide-viewing-angle light emission. Among them, the first sub-pixel 31 and the second sub-pixel 41 have the same emission color, and the third sub-pixel 32 and the fourth sub-pixel 42 have the same emission color.
[0161] Furthermore, in privacy mode, the display color effect of the display panel 100 is affected by the ratio of the orthographic projection areas of the first sub-pixel 31 to the third sub-pixel 32. In wide-viewing-angle display mode, the display color effect of the display panel 100 is affected by the ratio of the orthographic projection areas of the second sub-pixel 41 to the fourth sub-pixel 42.
[0162] Based on this, the embodiment of this application sets the area ratio of the first orthographic projection to the third orthographic projection to be equal to the area ratio of the second orthographic projection to the fourth orthographic projection, so that the area ratio of the orthographic projection of the first sub-pixel 31 to the third sub-pixel 32 can be the same as the area ratio of the orthographic projection of the second sub-pixel 41 to the fourth sub-pixel 42, thereby enabling the display panel 100 to still have the same display color effect in different display modes, improving the user's viewing experience.
[0163] In some embodiments, as shown in FIG2 and FIG3, the display panel further includes an electrode layer 21 located between the substrate 10 and the device layer 20, a first type pixel 30 including a first type electrode 211 located within the electrode layer 21, and a second type pixel 40 including a second type electrode 212 located within the electrode layer 21, wherein the first type electrode 211 and the second type electrode 212 are insulated from each other.
[0164] Taking an organic light-emitting display panel as an example, in this case, electrode layer 21 is an anode layer, and the first type of electrode 211 and the second type of electrode 212 are anodes located within the anode layer corresponding to different types of sub-pixels. Taking a liquid crystal display panel as an example, in this case, electrode layer is a pixel electrode layer, and the first type of electrode 211 and the second type of electrode 212 are pixel electrodes located within the pixel electrode layer corresponding to different types of sub-pixels.
[0165] In this embodiment, the first type electrode 211 is used to drive and control whether the light-emitting part 221 in the first type pixel 30 emits light or not, and the second type electrode 212 is used to drive and control whether the light-emitting part 221 in the second type pixel 40 emits light or not. Furthermore, considering that in some operating modes, only one of the first type pixel 30 and the second type pixel 40 emits light while the other does not, the first type electrode 211 and the second type electrode 212 are insulated. This allows at least one of the first type pixel 30 and the second type pixel 40 to emit light by selectively conducting the first type electrode 211 and the second type electrode 212, thereby meeting the needs of more than 100 operating modes of the display panel and providing strong flexibility and practicality.
[0166] In some optional embodiments, the display panel 100 further includes a cathode layer or common electrode layer located on the device layer 20 away from the substrate 10. The structures of the first type pixel 30 and the second type pixel 40 located on the cathode layer or common electrode layer 21 can be integrally connected or insulated from each other; this embodiment does not limit this. Optionally, the two can be integrally connected, which reduces the fabrication difficulty of the cathode layer or common electrode layer 21.
[0167] In some embodiments, as shown in FIG3, the first sub-pixel 31 and the second sub-pixel 41 are arranged adjacent to each other. The device layer 20 includes a light-emitting layer 22. The first sub-pixel 31 includes a first light-emitting part 221a located in the light-emitting layer 22, and the second sub-pixel 41 includes a second light-emitting part 221b located in the light-emitting layer 22. The first light-emitting part 221a and the second light-emitting part 221b are connected and integrally disposed.
[0168] As can be seen from the foregoing, since the first sub-pixel 31 and the second sub-pixel 41 are arranged adjacent to each other, the first light-emitting part 221a of the first sub-pixel 31 located in the light-emitting layer 22 and the second light-emitting part 221b of the second sub-pixel 41 located in the light-emitting layer 22 can be connected and arranged as a whole. On this basis, the first light-emitting part 221a and the second light-emitting part 221b can be formed together in the manufacturing process by means of the same mask opening. In this way, the size of the first light-emitting part 221a and the second light-emitting part 221b will not be affected by the distance between adjacent mask openings, which helps to increase the size of the first light-emitting part 221a and the second light-emitting part 221b and improve the aperture ratio of the display panel.
[0169] It should be noted that, since the first type electrode 211 is insulated from the second type electrode 212, and the first type electrode 211 typically controls the light emission of the portion of the structure in the light-emitting layer 22 that overlaps with the first type electrode 211 in its orthogonal projection onto the substrate 10, the same applies to the second type electrode 212. Therefore, although the first light-emitting part 221a and the second light-emitting part 221b are integrally connected, when the first type electrode 211 is turned on, only the first light-emitting part 221a will emit light, while the second light-emitting part 221b will not emit light due to the first type electrode 211. Similarly, when the second type electrode 212 is turned on, only the second light-emitting part 221b will emit light, while the first light-emitting part 221a will not emit light due to the second type electrode 212.
[0170] In some optional embodiments, the display panel 100 further includes a pixel definition layer 60 located between the electrode layer 21 and the device layer 20. The pixel definition layer 60 includes a pixel defining portion 61 and a plurality of pixel openings 62 spaced apart from each other and enclosed by the pixel defining portion 61. Partial structures in the first light-emitting portion 221a and partial structures in the second light-emitting portion 221b are respectively disposed within two adjacent pixel openings 62. Further, since the first light-emitting portion 221a and the second light-emitting portion 221b are integrally connected, a portion of the structure in the first light-emitting portion 221a extends to the side of the pixel defining portion 61 away from the substrate 10, and a portion of the structure in the second light-emitting portion 221b extends to the side of the pixel defining portion 61 away from the substrate 10. The first light-emitting portion 221a and the second light-emitting portion 221b are integrally connected to the side of the pixel defining portion 61 away from the substrate 10.
[0171] In some embodiments, the device layer 20 includes a light-emitting layer 22, which includes a plurality of light-emitting portions 221. The first type pixel 30 further includes a third sub-pixel 32 of a second color and a fifth sub-pixel 33 of a third color. The second type pixel 40 further includes a fourth sub-pixel 42 of a second color and a sixth sub-pixel 43 of a third color.
[0172] In the first sub-pixel 31 and the second sub-pixel 41, which are adjacent to each other in the first direction X, the light-emitting portion 221 of the first sub-pixel 31 and the light-emitting portion 221 of the second sub-pixel 41 are integrally connected. In the third sub-pixel 32 and the fourth sub-pixel 42, which are adjacent to each other in the first direction X, the light-emitting portion 221 of the third sub-pixel 32 and the light-emitting portion 221 of the fourth sub-pixel 42 are integrally connected. In the fifth sub-pixel 33 and the sixth sub-pixel 43, which are adjacent to each other in the first direction X, the light-emitting portion 221 of the fifth sub-pixel 33 and the light-emitting portion 221 of the sixth sub-pixel 43 are integrally connected.
[0173] In this embodiment, in addition to the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 being adjacent to each other and connected as a whole, the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 can also be adjacent to each other and connected as a whole, and the light-emitting parts 221 corresponding to the fifth sub-pixel 33 and the sixth sub-pixel 43 can also be adjacent to each other and connected as a whole.
[0174] Based on this, the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 can be fabricated together using the same mask opening. In this way, the size of the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 will not be affected by the distance between adjacent mask openings, which helps to increase the size of the light-emitting parts 221 corresponding to the first sub-pixel 31 and the second sub-pixel 41 and improve the aperture ratio of the display panel.
[0175] Similarly, the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 can be fabricated together using the same mask opening. In this way, the size of the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 will not be affected by the distance between adjacent mask openings, which helps to increase the size of the light-emitting parts 221 corresponding to the third sub-pixel 32 and the fourth sub-pixel 42 and improve the aperture ratio of the display panel.
[0176] Secondly, referring to FIG14, this application embodiment provides a display device 200, which includes the display panel in any of the foregoing embodiments.
[0177] It should be noted that the display device 200 provided in this application embodiment has the beneficial effects of the display panel in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the display panel. This application embodiment will not repeat the description.
[0178] Referring further to Figure 15, the display device 200 provided in this embodiment can be applied to the field of vehicle displays. The display device 200 is positioned at the passenger side. During vehicle operation, the display device 200 can control only the first type of pixels to emit light, while the second type of pixels remain off, to reduce the impact of the displayed image on the driver and improve driving safety. When the vehicle is stationary, the display device 200 can control the second type of pixels to emit light, so that the person in the driver's seat can also observe the displayed image, thus meeting display requirements.
[0179] While the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit the invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.
[0180] The above description is merely a specific embodiment of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, substitutions for other connection methods described above can be made by referring to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.
Claims
1. A display panel, the display panel comprising a first type of pixels and a second type of pixels, the first type of pixels comprising a first sub-pixel of a first color, and the second type of pixels comprising a second sub-pixel of the first color; the display panel further comprising: substrate; A device layer is disposed on one side of the substrate; A light modulation layer is located on the side of the device layer away from the substrate, and the light modulation layer includes a plurality of light modulation sections; The first sub-pixel has a first orthographic projection on the substrate, the second sub-pixel has a second orthographic projection on the substrate, the orthographic projection of the light adjustment unit on the substrate at least partially overlaps with the first orthographic projection, and the ratio of the perimeter to the area corresponding to the first orthographic projection is greater than the ratio of the perimeter to the area corresponding to the second orthographic projection.
2. The display panel according to claim 1, wherein, The light adjustment section includes a first surface facing away from the substrate, and the first surface is disposed in a direction facing away from the substrate.
3. The display panel according to claim 2, wherein, The light adjustment part at least partially covers the first orthographic projection in the orthographic projection of the substrate, and the outer contours of the two are compatible.
4. The display panel according to claim 1, comprising a first group and a second group, wherein the first group comprises at least two first type pixels arranged adjacent to each other, and the second group comprises at least two second type pixels arranged adjacent to each other; At least two of the first group are arranged continuously along the first direction, and at least two of the second group are arranged continuously along the first direction; or, the first group and the second group are arranged alternately along the first direction, and the first direction is parallel to the plane of the substrate.
5. The display panel according to claim 4, wherein, The first group and the second group are arranged alternately along the first direction and the second direction; or, The first group and the second group are arranged alternately along the first direction, multiple first groups are arranged continuously along the second direction, multiple second groups are arranged continuously along the second direction, and the first direction intersects the second direction.
6. The display panel according to claim 4, wherein, The first type of pixel further includes a third sub-pixel of the second color, and the second type of pixel further includes a fourth sub-pixel of the second color; The first group includes the first sub-pixel and the third sub-pixel, and the second group includes the second sub-pixel and the fourth sub-pixel; In the first group and the second group, which are arranged adjacent to each other along the first direction, the first sub-pixel and the second sub-pixel are arranged adjacent to each other along the first direction.
7. The display panel according to claim 6, wherein, The first type of pixel includes a fifth sub-pixel of the third color, and the second type of pixel includes a sixth sub-pixel of the third color; The first group includes at least one first sub-pixel, one third sub-pixel, and one fifth sub-pixel, wherein the third sub-pixel and the fifth sub-pixel are arranged along a second direction, the first sub-pixel and the third sub-pixel at least partially overlap along the first direction, and the first sub-pixel and the fifth sub-pixel at least partially overlap along the first direction; The second group includes at least one second sub-pixel, one fourth sub-pixel, and one sixth sub-pixel, wherein the fourth sub-pixel and the sixth sub-pixel are arranged along a second direction, the second sub-pixel and the fourth sub-pixel at least partially overlap along the first direction, and the second sub-pixel and the sixth sub-pixel at least partially overlap along the first direction.
8. The display panel according to claim 7, wherein, In the first group and the second group arranged adjacent to each other along the first direction, the third sub-pixel and the fourth sub-pixel are arranged adjacent to each other along the first direction, and the fifth sub-pixel and the sixth sub-pixel are arranged adjacent to each other along the first direction.
9. The display panel according to claim 8, wherein, The first color is blue, the second color is green, and the third color is red.
10. The display panel according to claim 8, wherein, The first group and the second group, which are arranged adjacent to each other along the first direction, constitute a pixel group. In a single pixel group, the first sub-pixel and the second sub-pixel are arranged adjacent to each other. The first sub-pixel has a first side facing the adjacent second sub-pixel, and the fourth sub-pixel has a second side facing the adjacent third sub-pixel. In a single pixel group, the distance between the first side and the second side along the first direction is L1. In two adjacent pixel groups, the distance between the first side in one pixel group and the distance between the second side in the other pixel group is L1. The distance between the two sides along the first direction is L2; In adjacent rows along the second direction, the distance between different fourth sub-pixels along the second direction is L3, where L3 = L1 + L2.
11. The display panel according to claim 6, wherein, In the first group and the second group arranged adjacent to each other along the second direction, the third sub-pixel and the fourth sub-pixel are arranged adjacent to each other along the second direction, and the first direction intersects the second direction.
12. The display panel according to claim 11, wherein, The first type of pixel includes a fifth sub-pixel of the third color, and the second type of pixel includes a sixth sub-pixel of the third color; The first group includes at least one first sub-pixel, two third sub-pixels, and one fifth sub-pixel. The first sub-pixel and the fifth sub-pixel are arranged along the first direction, and the two third sub-pixels are arranged along the second direction. The first sub-pixel, the third sub-pixel, the fifth sub-pixel, and the third sub-pixel are arranged sequentially along the circumferential direction of the center of the first group. The second group includes at least one second sub-pixel, two fourth sub-pixels, and one sixth sub-pixel. The second sub-pixel and the sixth sub-pixel are arranged along the first direction, and the two fourth sub-pixels are arranged along the second direction. The second sub-pixel, the fourth sub-pixel, the sixth sub-pixel, and the fourth sub-pixel are arranged sequentially along the circumferential direction of the center of the second group.
13. The display panel according to claim 6 further includes a third group and a fourth group arranged along the first direction, the third group including at least two first type pixels arranged adjacently, the fourth group including at least two second type pixels arranged adjacently, at least one first type pixel in the first group having a different emission color from each first type pixel in the third group, and at least one second type pixel in the second group having a different emission color from each second type pixel in the fourth group. The first and second groups are adjacent to each other to form a first pixel group, and the third and fourth groups are adjacent to each other to form a second pixel group. The first pixel group and the second pixel group are alternately arranged along a second direction, and the first direction intersects the second direction.
14. The display panel according to claim 13, wherein, The first type of pixel includes a fifth sub-pixel of the third color, and the second type of pixel includes a sixth sub-pixel of the third color; The first group includes a first sub-pixel and a third sub-pixel, the second group includes a second sub-pixel and a fourth sub-pixel, the third group includes a third sub-pixel and a fifth sub-pixel, and the fourth group includes a fourth sub-pixel and a sixth sub-pixel. In the first and second groups arranged adjacent to each other along the first direction, the first sub-pixel and the second sub-pixel are arranged adjacent to each other along the first direction; in the remaining first and second groups arranged adjacent to each other, the third sub-pixel and the fourth sub-pixel are arranged adjacent to each other along the first direction. In the portion of the third and fourth groups that are arranged adjacent to each other along the first direction, the third sub-pixel and the fourth sub-pixel are arranged adjacent to each other along the first direction. In the remaining portion of the third and fourth groups that are arranged adjacent to each other, the fifth sub-pixel and the sixth sub-pixel are arranged adjacent to each other along the first direction.
15. The display panel according to claim 4, wherein, In the first sub-pixel and the second sub-pixel that are arranged adjacently, the first sub-pixel has a first side facing the second sub-pixel, and the second sub-pixel has a third side facing the first sub-pixel, with the first side being parallel to the third side.
16. The display panel according to claim 1, wherein, The first orthographic projection is rectangular, and the aspect ratio of the rectangle is not less than 3; and / or, The second orthographic projection is a triangle, and the ratio of the longest side to the shortest side in the triangle is no greater than 1.
5.
17. The display panel according to claim 1, wherein, The first type of pixel includes a third sub-pixel of the second color, and the second type of pixel includes a fourth sub-pixel of the second color; The third sub-pixel has a third orthographic projection on the substrate, and the fourth sub-pixel has a fourth orthographic projection on the substrate. The area ratio of the first orthographic projection to the third orthographic projection is equal to the area ratio of the second orthographic projection to the fourth orthographic projection.
18. The display panel according to claim 1, further comprising an electrode layer located between the substrate and the device layer, wherein the first type of pixel includes a first type of electrode located within the electrode layer, the second type of pixel includes a second type of electrode located within the electrode layer, and the first type of electrode and the second type of electrode are insulated from each other.
19. The display panel according to claim 1, wherein, The first sub-pixel and the second sub-pixel are arranged adjacent to each other; The device layer includes a light-emitting layer, the first sub-pixel includes a first light-emitting part located within the light-emitting layer, and the second sub-pixel includes a second light-emitting part located within the light-emitting layer. The first light-emitting part and the second light-emitting part are integrally connected.
20. The display panel according to claim 1, wherein, The device layer includes a light-emitting layer, and the light-emitting layer includes a plurality of light-emitting portions; The first type of pixel further includes a third sub-pixel of the second color and a fifth sub-pixel of the third color, and the second type of pixel further includes a fourth sub-pixel of the second color and a sixth sub-pixel of the third color; In the first sub-pixel and the second sub-pixel arranged adjacent to each other in the first direction, the light-emitting part of the first sub-pixel and the light-emitting part of the second sub-pixel are connected and integrally disposed; In the third sub-pixel and the fourth sub-pixel that are arranged adjacent to each other in the first direction, the light-emitting part of the third sub-pixel and the light-emitting part of the fourth sub-pixel are connected and integrally disposed; In the fifth sub-pixel and the sixth sub-pixel that are arranged adjacent to each other in the first direction, the light-emitting part of the fifth sub-pixel and the light-emitting part of the sixth sub-pixel are connected and integrally disposed; Wherein, the first direction is parallel to the plane where the substrate is located.
21. A display device comprising a display panel as described in any one of claims 1 to 20.
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