Pixel structure, light-emitting device and display device
By adopting a combined structure of ring main color resistance and sub-pixel units in the OLED display device, the problems of small angle color difference and low brightness are solved, and a larger viewing angle and higher brightness are achieved, and the display effect is improved.
Patent Information
- Application Number
- CN202323424610.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-14
AI Technical Summary
Traditional OLED display devices have obvious color difference when viewed at a small angle, and their brightness is low in strong light environments, making it difficult to meet the display effect requirements.
A combined structure of annular main color resistor and a sub-pixel unit is adopted, wherein the main color resistor is annular color resistor of three colors: red, green and blue. The sub-pixel unit is arranged around the outside or inside of the main color resistor, and white light is emitted through the sub-pixel unit. Increase brightness and adjust colors to increase viewing angle and brightness.
The gap in angle-dependent luminous effect is effectively reduced, the viewing angle is increased, and the overall brightness and display effect are improved through the white light emission of the sub-pixel unit, achieving brightness improvement in the strong light environment.
Smart Images
Figure CN222322121U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of display technology, and in particular, relates to a pixel structure, a light-emitting device, and a display device. Background Art
[0002] At present, the application of organic light-emitting diode (OLED) display devices is becoming more and more widespread, especially in mobile phones and tablet computers. In order to achieve better display effects for mobile phones and other devices, the display requirements and display technology requirements for OLED display devices are becoming higher and higher. The color difference of existing OLED display devices will become more obvious as the angle between the line of sight and the display becomes smaller. At the same time, in scenes with strong light, the low display brightness of OLED display devices also needs to be improved urgently. Summary of the invention
[0003] The purpose of the present application is to provide a pixel structure, a light-emitting device and a display device, aiming to solve the problems of small viewing angle and low brightness existing in traditional OLED display devices.
[0004] A first aspect of an embodiment of the present application provides a pixel structure, including: a main color resist and at least one sub-pixel unit corresponding to the main color resist; the sub-pixel unit is arranged on the inner side of the main color resist, and the main color resist is an annular color resist; and / or a plurality of the sub-pixel units are arranged around the corresponding outer side of the main color resist.
[0005] In one embodiment, the pixel structure includes a plurality of primary color resists sequentially arranged along a first direction.
[0006] In one embodiment, the plurality of primary color resists include at least one red first primary color resist, a green second primary color resist and a blue third primary color resist; the first primary color resist, the second primary color resist and the third primary color resist are arranged in sequence along the first direction; the light-emitting areas of the first primary color resist, the second primary color resist and the third primary color resist are equal.
[0007] In one embodiment, when the main color resist is an annular color resist, the outer ring contour of the main color resist is any one of a circle, a polygon, a rounded polygon or an ellipse.
[0008] In one embodiment, when the main color resist is an annular color resist, the inner ring contour of the main color resist is any one of a circle, a polygon, a rounded polygon or an ellipse.
[0009] In one embodiment, the sub-pixel unit includes a plurality of secondary color resists, and the plurality of secondary color resists are arranged in sequence along a first direction.
[0010] In one embodiment, one of the sub-pixel units includes at least a red first secondary color resistor, a green second secondary color resistor and a blue third secondary color resistor; the light-emitting areas of the first secondary color resistor, the second secondary color resistor and the third secondary color resistor are equal and smaller than the light-emitting areas of the corresponding primary color resistors; the first secondary color resistor, the second secondary color resistor and the third secondary color resistor are arranged in sequence along the first direction.
[0011] In one embodiment, the light emitting areas of the first secondary color resist, the second secondary color resist and the third secondary color resist are 1 / 50 to 1 / 15 of the light emitting areas of the corresponding primary color resist.
[0012] A second aspect of the embodiments of the present application provides a light-emitting device comprising a plurality of pixel structures as described above.
[0013] A third aspect of an embodiment of the present application provides a display device comprising a plurality of pixel structures as described above.
[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects: when the main color resistance is annular, the luminous effects of the main color resistance are slightly different when viewed from different angles, thereby increasing the corresponding viewing angle.
[0015] At the same time, the sub-pixel unit can emit white light to increase the brightness of the corresponding primary color group, which can increase the overall brightness of the pixel structure and achieve color adjustment to improve the display effect. The sub-pixel units surrounding the outside of the primary color group can also increase the viewing angle. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of a pixel structure provided in an embodiment of the present application;
[0017] Figure 2 Another structural schematic diagram of a pixel structure provided by an embodiment of the present application;
[0018] Figure 3 Another structural schematic diagram of a pixel structure provided by an embodiment of the present application;
[0019] Figure 4 Another structural schematic diagram of a pixel structure provided by an embodiment of the present application;
[0020] Figure 5 Another structural schematic diagram of a pixel structure provided by an embodiment of the present application;
[0021] Figure 6 A schematic diagram of another structure of a pixel structure provided by an embodiment of the present application;
[0022] Figure 7A schematic diagram of a circuit of primary color resistance and secondary color resistance provided in an embodiment of the present application;
[0023] Figure 8 A schematic diagram of the structure of a light emitting device provided in one embodiment of the present application;
[0024] Fig. 9 A schematic diagram of the structure of a display device provided in one embodiment of the present application.
[0025] Description of the above drawings: 10, pixel structure; 20, driver integrated circuit; 30, light-emitting device; 40, substrate; 50, display device; 100, primary color resistor; 110, first primary color resistor; 120, second primary color resistor; 130, third primary color resistor; 200, sub-pixel unit; 210, first secondary color resistor; 220, second secondary color resistor; 230, third secondary color resistor. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0028] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] Figure 1A schematic diagram of a pixel structure provided by an embodiment of the present application is shown. For ease of description, only the part related to the present embodiment is shown, which is described in detail as follows:
[0031] A pixel structure 10 includes: a main color resist 100 and at least one sub-pixel unit 200. The sub-pixel unit 200 is arranged inside the main color resist 100, and the main color resist 100 is a ring-shaped color resist.
[0032] It can be understood that in the present application, the pixel structure 10 is the smallest integrated unit constituting the pixel arrangement, that is, the pixel arrangement includes a plurality of pixel structures 10 arranged in a specific arrangement, each pixel structure 10 is independently connected to the anode wiring and cathode wiring of the driver integrated circuit 20 (integrated circuit, IC), and for OLED display devices, the color resistance in the pixel structure 10 can be driven to be energized by the driver integrated circuit 20 to emit color light. The above-mentioned pixel structure 10 can also be applied to devices such as micro-LED display devices and mini-LED display devices.
[0033] It should be noted that if the light emitted by the annular color resist is viewed from different angles, the difference in the luminous effects of the annular color resist at different angles is relatively small. When a display panel is composed of this pixel structure 10, the viewing angle of the display panel can be increased to optimize the user experience.
[0034] At the same time, when light is emitted through the main color resist 100, the sub-pixel unit 200 can also emit light to cooperate with the main color resist 100 to increase the brightness of the single pixel structure 10 and improve the display effect. The color of the light emitted by the sub-pixel unit 200 can be the same as the color of the main color resist 100, or it can be different from the color of the main color resist 100. For example, the sub-pixel unit 200 can emit white light, which can also achieve the effect of increasing the brightness of the single pixel structure 10.
[0035] In one embodiment, a pixel structure 10 includes a plurality of sub-pixel units 200, and the plurality of sub-pixel units 200 are arranged around the outside of the main color resist 100. In this embodiment, the shape of the main color resist 100 is not limited, and the main color resist 100 can be any one of a circle, a polygon, a rounded polygon or an ellipse. The sub-pixel unit 200 can be used to emit white light to increase the overall luminous brightness of the pixel structure 10. The plurality of sub-pixel units 200 arranged around can also increase the viewing angle of the pixel structure 10.
[0036] For example, Figure 2 As shown, a plurality of sub-pixel units 200 are disposed around the outside of the rectangular main color resist 100. The plurality of sub-pixel units 200 are arranged in a rectangular shape and are disposed around the outside of the rectangular main color resist 100.
[0037] In some embodiments, the intervals between adjacent sub-pixel units 200 are equal.
[0038] In one embodiment, the pixel structure 10 includes a plurality of primary color resists 100 arranged in sequence along a first direction. Figure 3 As shown, each primary color resist 100 is provided with a sub-pixel unit 200 .
[0039] It is understandable that the primary color resists 100 may be arranged according to actual needs. For example, in some embodiments, the three primary color resists 100 may be arranged in a herringbone shape.
[0040] like Figures 1 to 5 As shown, in one embodiment, the plurality of primary color resists 100 include at least one red first primary color resist 110, a green second primary color resist 120, and a blue third primary color resist 130. The first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are arranged in sequence along the first direction, and the light emitting areas of the first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are equal.
[0041] It should be noted that when the red first primary color resist 110 is powered on, it will emit red light, when the green second primary color resist 120 is powered on, it will emit green light, and when the blue third primary color resist 130 is powered on, it will emit blue light. When the red first primary color resist 110, the green second primary color resist 120, and the blue third primary color resist 130 are powered on at the same time, since the light-emitting areas of the first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are equal, when the light-emitting brightness of the first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are also equal, white light will be generated. When the sub-pixel unit 200 corresponding to each primary color resist 100 emits light, the display brightness of the corresponding primary color resist 100 will be enhanced, thereby enhancing the display brightness of the entire pixel structure 10.
[0042] It is understandable that by individually controlling the brightness of the sub-pixel units 200 corresponding to each primary color resist 100, or only providing sub-pixel units 200 for primary color resists 100 of certain colors, the hue of light emitted by a single pixel structure 10 can also be controlled.
[0043] For example, if the first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are lit up, and only the sub-pixel unit 200 corresponding to the third primary color resist 130 is lit up, the light emitted by the pixel structure 10 can be made blue. If the first primary color resist 110, the second primary color resist 120, and the third primary color resist 130 are lit up, and only the sub-pixel unit 200 corresponding to the first primary color resist 110 and the second primary color resist 120 is lit up, the light emitted by the pixel structure 10 can be made warm.
[0044] It is understandable that other colors of the main color resist 100 may also be selected according to actual conditions.
[0045] In one embodiment, the outer ring contour of the primary color resist 100 is any one of a circle, a polygon, a rounded polygon or an ellipse. The primary color resist 100 with a circular outer ring contour has a better viewing angle.
[0046] It is understandable that the outer ring contour of the main color resist 100 can also be set to other shapes according to actual needs, such as a rectangle, etc. This embodiment does not limit the shape of the outer ring contour of the main color resist 100.
[0047] In one embodiment, the inner ring contour of the main color resist 100 is any one of a circle, a polygon, a rounded polygon or an ellipse. Among them, the main color resist 100 with a rectangular inner ring contour can be conveniently provided with a rectangular sub-pixel unit 200 inside thereof, so as to make full use of the space inside the main color resist 100.
[0048] It is understandable that the inner ring profile of the main color resist 100 may also be set to other shapes according to actual needs, and this embodiment does not limit the shape of the inner ring profile of the main color resist 100 .
[0049] When the outer ring contour of the main color resist 100 is circular and the inner ring contour of the main color resist 100 is rectangular, the shape of the main color resist 100 is similar to the shape of an ancient copper coin.
[0050] like Figure 6 As shown, in one embodiment, a sub-pixel unit 200 includes a plurality of secondary color resists, and the plurality of secondary color resists are arranged in sequence along the first direction. The shape of the secondary color resist can select the most suitable shape according to the inner ring contour of the primary color resist 100 to fill the inner side of the primary color resist 100, so as to achieve the best color effect. In some embodiments, the plurality of secondary color resists in a sub-pixel unit 200 are distributed in a herringbone shape.
[0051] The size of a secondary color resistor can be selected according to actual needs. For example, when the sub-pixel unit 200 is arranged around the outside of the primary color resistor 100, a secondary color resistor of a suitable size can be selected according to the gap between the primary color resistors 100.
[0052] like Figure 6 As shown, in one embodiment, the plurality of secondary color resists in a sub-pixel unit 200 include at least a red first secondary color resist 210, a green second secondary color resist 220, and a blue third secondary color resist 230. The light-emitting areas of the first secondary color resist 210, the second secondary color resist 220, and the third secondary color resist 230 are equal and smaller than the light-emitting area of the corresponding primary color resist 100. The first secondary color resist 210, the second secondary color resist 220, and the third secondary color resist 230 are arranged in sequence along the first direction.
[0053] It should be noted that when the red first secondary color resist 210 is powered on, it will emit red light, when the green second secondary color resist 220 is powered on, it will emit green light, and when the blue third secondary color resist 230 is powered on, it will emit blue light. When the red first secondary color resist 210, the green second secondary color resist 220 and the blue third secondary color resist 230 are powered on at the same time, since the light-emitting areas of the first secondary color resist 210, the second secondary color resist 220 and the third secondary color resist 230 are equal, when the light-emitting brightness of the first secondary color resist 210, the second secondary color resist 220 and the third secondary color resist 230 are also equal, white light will be generated, thereby improving the brightness of the pixel structure 10, and achieving the display brightness that could only be achieved with a large current under the drive of a small current.
[0054] It is understandable that the sub-pixel unit 200 may also include secondary color resists of other colors, and a suitable color of secondary color resist may be selected according to actual conditions.
[0055] The first secondary color resist 210 , the second secondary color resist 220 , and the third secondary color resist 230 may also be arranged in other ways, for example, they may be arranged in sequence along a second direction perpendicular to the first direction.
[0056] In one embodiment, the light-emitting areas of the first secondary color resist 210, the second secondary color resist 220, and the third secondary color resist 230 can be selected in appropriate sizes according to actual requirements such as actual light-emitting brightness. For example, the light-emitting areas of the first secondary color resist 210, the second secondary color resist 220, and the third secondary color resist 230 can be 1 / 50 to 1 / 15 of the light-emitting areas of the corresponding primary color resist 100.
[0057] In one embodiment, a main color resistor 100 and a sub-pixel unit 200 corresponding to the main color resistor 100 are connected in parallel between a same TFT (Thin Film Transistor) anode wiring of the driving integrated circuit 20 and a cathode wiring of the driving integrated circuit 20 .
[0058] When the corresponding thin film transistor in the driving integrated circuit 20 is turned on, the main color resistor 100 connected thereto and the sub-pixel unit 200 corresponding to the main color resistor 100 will emit light at the same time. Figure 7 As shown, a sub-pixel unit 200 includes a first secondary color resistor 210, a second secondary color resistor 220 and a third secondary color resistor 230. One end of the first secondary color resistor 210, the second secondary color resistor 220 and the third secondary color resistor 230 and one end of the corresponding primary color resistor 100 are connected to the same thin film transistor Q1. When the thin film transistor Q1 is turned on, the first secondary color resistor 210, the second secondary color resistor 220 and the third secondary color resistor 230 and the corresponding primary color resistor 100 will emit light synchronously.
[0059] Figure 8The structural schematic diagram of a light emitting device provided by an embodiment of the present application is shown. For the convenience of description, only the part related to the present embodiment is shown, which is described in detail as follows:
[0060] A light-emitting device 30 includes a plurality of pixel structures 10 as in any of the above embodiments, wherein the pixel structure 10 includes a main color resist 100 and at least one sub-pixel unit 200. The light-emitting device 30 also includes a substrate 40, a main control module, and a driving integrated circuit 20. Each pixel structure 10 is arranged in a light-emitting matrix and is disposed on the substrate 40. The main control module is connected to each pixel structure 10 through the driving integrated circuit 20 to drive each main color resist 100 in each pixel structure 10 to emit light synchronously with the corresponding sub-pixel unit 200. The main control module may be a microprocessor or an integrated circuit, etc.
[0061] The main control module may include an independent first brightness control unit and a second brightness control unit. The first brightness control unit drives each main color resistor 100 to emit light, and the second brightness control unit drives each sub-pixel unit 200 to emit light independently.
[0062] In some embodiments, the first brightness control unit can drive each main color resistor 100 with a current half of the rated driving current of each main color resistor 100. Driving the main color resistor 100 with a smaller current can extend the service life of the main color resistor 100. At the same time, the second brightness control unit drives the corresponding sub-pixel units 200 to emit light to achieve brightness compensation, so that the brightness of the pixel structure 10 meets the requirements.
[0063] The second brightness control unit may also selectively control the sub-pixel units 200 of the pixel structure 10 in a partial area of the light-emitting device 30 to emit light, thereby achieving targeted regional fill light for the light-emitting device 30 .
[0064] It can be understood that in the present application, the pixel structure 10 is the smallest integrated unit constituting the pixel arrangement, that is, the pixel arrangement includes a plurality of pixel structures 10 arranged in a specific arrangement, and each pixel structure 10 is electrically connected to the anode wiring and cathode wiring of the driver integrated circuit 20 (integrated circuit, IC) through an independent driving line. For OLED display devices, the color resistance in the pixel structure 10 is driven to be energized by the driver integrated circuit 20 to emit color light. The above-mentioned pixel structure 10 can also be applied to micro-LED display devices, mini-LED display devices, EPD display devices and other devices.
[0065] It should be noted that if the main color resist 100 is viewed from different angles, the luminous effects of the main color resist 100 viewed from different angles are relatively small. When a display device 60 is composed of the pixel structure 10, the viewing angle of the display device 60 can be increased to optimize the user experience.
[0066] At the same time, when light is emitted through the main color resist 100, the sub-pixel unit 200 can also emit light to cooperate with the main color resist 100 to increase the brightness of the single pixel structure 10 and improve the display effect. The color of the light emitted by the sub-pixel unit 200 can be the same as the color of the main color resist 100, or it can be different from the color of the main color resist 100. For example, the sub-pixel unit 200 can emit white light, which can also achieve the effect of increasing the brightness of the single pixel structure 10.
[0067] Fig. 9 A schematic diagram of the structure of a display device provided by an embodiment of the present application is shown. For the sake of convenience, only the parts related to the present embodiment are shown, which are described in detail as follows:
[0068] The third aspect of the embodiment of the present application provides a display device 50, characterized in that it includes a plurality of pixel structures 10 as described above, and each pixel structure 10 is arranged in a light-emitting matrix. The display device 50 can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a laptop computer, a digital photo frame, etc.
[0069] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.
[0070] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0071] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0072] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A pixel structure, characterized in that: include: A main color resistor and at least one sub-pixel unit corresponding to the main color resistor; The sub-pixel unit is arranged inside the main color resistance, and the main color resistance is a ring-shaped color resistance; And / or, a plurality of the sub-pixel units are arranged around the outside of the corresponding main color resist.
2. The pixel structure according to claim 1, characterized in that: The pixel structure includes a plurality of main color resists sequentially arranged along a first direction.
3. The pixel structure according to claim 2, characterized in that: The multiple main color resists include at least one red first main color resist, a green second main color resist and a blue third main color resist; the first main color resist, the second main color resist and the third main color resist are arranged in sequence along the first direction; the first main color resist, the second main color resist and the third main color resist have equal light-emitting areas.
4. The pixel structure according to claim 1, wherein: When the main color resist is an annular color resist, the outer ring contour of the main color resist is any one of a circle, a polygon, a rounded polygon or an ellipse.
5. The pixel structure according to claim 1, wherein: When the main color resist is an annular color resist, the inner ring contour of the main color resist is any one of a circle, a polygon, a rounded polygon or an ellipse.
6. The pixel structure according to any one of claims 1 to 5, characterized in that: The sub-pixel unit includes a plurality of secondary color resists, and the plurality of secondary color resists are arranged in sequence along a first direction.
7. The pixel structure according to claim 6, characterized in that: One of the sub-pixel units includes at least a red first secondary color resistor, a green second secondary color resistor and a blue third secondary color resistor; the light-emitting areas of the first secondary color resistor, the second secondary color resistor and the third secondary color resistor are equal and smaller than the light-emitting areas of the corresponding primary color resistors; The first secondary color resist, the second secondary color resist and the third secondary color resist are arranged in sequence along the first direction.
8. The pixel structure according to claim 7, characterized in that: The light emitting areas of the first secondary color resist, the second secondary color resist and the third secondary color resist are 1 / 50 to 1 / 15 of the light emitting areas of the corresponding primary color resist.
9. A light emitting device, characterized in that: It comprises a plurality of pixel structures as described in any one of claims 1 to 8.
10. A display device, characterized in that: It comprises a plurality of pixel structures as described in any one of claims 1 to 8.