Patent Application
20200273393
The present disclosure relates to the field of display technology, in particular to a display substrate, a display panel and a display device.
At present, most display screens adopt the conventional RGB arrangement, that is, a square pixel is divided into three equal parts and each part is represented by red, green and blue, thereby forming a color pixel. In embedded fingerprint identification technology, the conventional fingerprint identification key is abandoned, and fingerprint identification is performed by pressing directly on the display screen.
A display substrate provided by an embodiment of the first aspect of the present disclosure includes: a substrate, and a plurality of polygonal pixels arranged in an array on the substrate. Each polygonal pixel includes a plurality of sub-pixels and a photoelectric sensor. An orthographic projection of the plurality of sub-pixels on the substrate and an orthogonal projection of the photoelectric sensor on the substrate do not overlap with each other.
In some embodiments, in each polygonal pixel, the plurality of sub-pixels are disposed on a periphery of the polygonal pixel, and an edge of each sub-pixel at a periphery of the polygonal pixel overlaps with an edge of the polygonal pixel.
In some embodiments, a shape of the sub-pixel is a triangle or an isosceles trapezoid.
In some embodiments, in each polygonal pixel, an edge of each sub-pixel near the center of the polygonal pixel has an arc shape, and an arcing direction of the arc shape departs from the center of the polygonal pixel.
In some embodiments, each polygonal pixel includes three sub-pixels of different colors, and a shape of the polygonal pixel is a hexagon.
In some embodiments, the three sub-pixels of different colors in each polygonal pixel correspond to the first edge, the third edge, and the fifth edge of the hexagon respectively.
In some embodiments, each polygonal pixel includes four sub-pixels of different colors, and a shape of the polygonal pixel is an octagon.
In some embodiments, the four sub-pixels of different colors in each polygonal pixel correspond to the first edge, the third edge, the fifth edge, and the seventh edge of the octagon respectively.
In some embodiments, the photoelectric sensor and the plurality of sub-pixels are disposed in different layers, and the plurality of sub-pixels are closer to the light exit side of the display substrate than the photoelectric sensor.
In some embodiments, the photoelectric sensor is a photodiode.
In some embodiments, the sub-pixel is a light emitting device.
A display panel provided by an embodiment of the second aspect of the present disclosure includes the display substrate as described in the above embodiments.
A display device provided by an embodiment of the third aspect of the present disclosure includes the display panel as described in the above embodiment.
Additional aspects and advantages of the present disclosure will be given in the following description, which will become apparent from the following description, or can be understood through practice of the disclosure.
The above and/or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of embodiments in conjunction with the drawings, in which:
Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the drawings, in which the same or similar reference numbers indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present disclosure, and should not be construed as limiting the present disclosure.
Hereinafter, a display substrate, a display panel and a display device according to embodiments of the present disclosure will be described with reference to the drawings.
How to improve the display screen is of great significance in improving the accuracy of embedded fingerprint identification.
As shown in
As shown in
In some embodiments, in each polygonal pixel 121, the plurality of sub-pixels 1211 are disposed on the periphery of the polygonal pixel 121, and an edge of each sub-pixel 1211 at a periphery of the polygonal pixels 121 overlaps with an edge of the polygonal pixel 121.
In some embodiments, as shown in
In some embodiments, as shown in
In some embodiments, each polygonal pixel 121 includes three sub-pixels 1211 of different colors (e.g. RGB), and a shape of the polygonal pixel 121 is a hexagon.
As shown in
In some embodiments, as shown in
In some embodiments, as shown in
The polygonal pixel 121 with a hexagonal shape will be described as an example below.
In an embodiment of the present disclosure, the sub-pixel 1211 may have a triangular shape. The polygonal pixel 121 composed of such sub-pixels 1211 is shown in
In another embodiment of the present disclosure, the sub-pixel 1211 may have an isosceles trapezoid shape. The polygonal pixels 121 composed of such sub-pixels 1211 is shown in
In some embodiments, as shown in
In addition, in order to prevent the light emitted by the sub-pixel 1211 from affecting the photoelectric sensor 1212, in an embodiment of the present disclosure, the photoelectric sensor 1212 and the plurality of sub-pixels 1211 are disposed in different layers, and the plurality of sub-pixels 1211 are closer to the light exit side (i.e. the side on which the reflector 5 is located in
In some embodiments, the photoelectric sensor 1212 is a photodiode. Those skilled in the art can understand that the photoelectric sensor can also be a photomultiplier tube, a photoresistor, a phototransistor, a photocell, a semiconductor color sensor, a pyroelectric sensor, an optoelectronic coupler, and the like.
In some embodiments, as shown in
In the display substrate according to the embodiment of the present disclosure, a plurality of sub-pixels and photoelectric sensor are arranged in a polygonal pixel, and a plurality of polygonal pixels form an array, which can maximize the collection of light signals, thereby improving the efficiency of the photoelectric sensor and the accuracy of fingerprint identification.
The present disclosure also provides a display panel including the display substrate described in the above embodiments.
The present disclosure further provides a display device including the display panel described in the above embodiment. The display device may be a display screen of a mobile terminal, a tablet computer, or the like. Based on the display device, an embedded fingerprint identification method can be implemented. Specifically, when the display device is displaying, the display device emits light. The user can press a finger on the display device, and the display device can receive the light reflected by the user's finger. After receiving the reflected light, the photodiode in the display device can send the light intensity information to the processor, and the processor generates a fingerprint image. Then the fingerprint image is compared with the fingerprint template pre-recorded in the fingerprint library to identify the fingerprint. With this display device, the accuracy of embedded fingerprint identification can be effectively improved.
In the description of the present specification, the description referring to the terms “an embodiment”, “some embodiments”, “an example”, “a specific example”, or “some examples” or the like means specific characters, structures, materials, or features described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily have to refer to the same embodiment or example. Furthermore, the specific characters, structures, materials, or features described may be combined in any suitable manner in any one or more of the embodiments or examples. In addition, those skilled in the art can combine the different embodiments or examples described in this specification and features of different embodiments or examples without conflicting with each other.
Furthermore, the terms “first” and “second” are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with “first”, “second” may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of “plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
Any process or method described in the flowcharts or described in other manners may be read to mean modules, sections, or portions of code that represent executable instructions that include one or more steps for implementing a custom logic function or process. The scope of the preferred implementations of the present disclosure includes additional implementations in which functions may be performed in an order that is not shown or discussed, including in a substantially simultaneous manner or in reverse order depending on the function involved. It will be understood by those skilled in the art to which the embodiments of the present disclosure pertain.
The logic and/or steps (which for example may be considered as a sequence listing of executable instructions for implementing logical functions) described in the flowchart or described in other manners may be embodied in any computer-readable medium to be used by or in combination with an instruction execution system, apparatus, or device (e.g. a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, apparatus, or device and execute instructions). For this specification, a “computer-readable medium” can be any means that can contain, store, communicate, propagate, or transport the program to be used by or in combination with the instruction execution system, apparatus, or device. More specific examples (non-exhaustive listings) of a computer-readable medium include electrical connections (electronic devices) with one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber devices, and portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed. Paper or other medium can be scanned optically and be processed by editing, interpretation, or other suitable methods if necessary, by this way the program can be obtain electronically and then stored in computer memory.
It should be understood that individual portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, a plurality of steps or methods may be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it may be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits with logic gates for implementing logic functions on data signals, dedicated integrated circuits with suitable combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.
Persons of ordinary skill in the art may understand that all or part of the steps carried by the method in the foregoing embodiment may be performed through a program to instruct related hardware. The program may be stored in a computer-readable storage medium that, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The above integrated module can be implemented in the form of hardware or in the form of a software function module. Integrated modules can also be stored on a computer-readable storage medium if they are implemented in the form of software function modules and sold or used as a stand-alone product.
The above described storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like. Although embodiments of the present disclosure have been shown and described above, it will be understood that the above described embodiments are exemplary and not to be construed as limiting the present disclosure, and that those of ordinary skill in the art may alter, modify, substitute and vary the above embodiments within the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201710648337.7 | Aug 2017 | CN | national |
This application is a divisional application of U.S. Ser. No. 15/977,015, filed on May 11, 2018 which claims the benefit of Chinese Patent Application No. 201710648337.7, filed on Aug. 1, 2017, the entire disclosures of which are incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15977015 | May 2018 | US |
| Child | 16872412 | US |
