Display panel and display device
By selecting the opposite polarity of the data lines on both sides of the light sensor in the flip pixel arrangement of the display panel and setting dummy elements, the problem of difficulty in taking into account the signal-to-noise ratio and crosstalk risks in the existing technology is solved, and the problem of achieving the problem of Higher signal-to-noise ratio and reduced crosstalk risk effects.
Patent Information
- Application Number
- CN202210350701.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-02
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2042-04-02
AI Technical Summary
When the existing display panels integrate optical sensors, the Stripe arrangement leads to a relatively high signal-to-noise but the display crosstalk risk is high. The Flip arrangement leads to a poor signal-to-noise, but the optical sensor is less disturbed by data lines, making it difficult to take into account both.
Using flip pixel arrangement, select opposite polarity of the data line trace on both sides of the light sensor, and set dummy elements in the corresponding position to balance the impact of the data line trace on the light sensor, and pass through multiple light sensors and dummy elements. The distribution of the data enables higher signal-to-noise ratio and reduces crosstalk risk.
While maintaining the better display effect, a higher signal-to-noise ratio is achieved and the crosstalk risk of integrated light sensors in the display panel is reduced.
Smart Images

Figure CN114708816B_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of display technology, and in particular, relates to a display panel and a display device. Background Art
[0002] Integrating light sensors in display panels can achieve more human-computer interaction functions and enrich user experience. The current technology for integrating light sensors in display panels can set the sensor between two pixels. Using stripe-arranged pixels can reduce the interference of data line routing on light sensors and achieve a higher signal-to-noise ratio, but the risk of display crosstalk is higher; using flip-arranged pixels can have a better display effect and less display crosstalk, but there are data line routing on both sides of the light sensor, which has a greater impact on the light sensor and a poor signal-to-noise ratio.
[0003] See also Figure 1 , Figure 1 The present invention is a wiring diagram of a display panel using a stripe pixel arrangement in the prior art. The pixel units on the display panel are arranged in rows and columns. The R, G, and B sub-pixels that constitute the same pixel unit are arranged in rows horizontally, and the sub-pixels of the same column of pixel units are arranged in columns vertically. The sub-pixels in the same row are connected to the same row of scan lines (gate lines), and the sub-pixels in the same column are connected to the same column of data lines. The polarities of two adjacent sub-pixels in the same row are opposite, and the polarities of two adjacent sub-pixels in the same column are the same. In the accompanying drawings, + and - signs represent opposite polarities. A light sensor 4 is arranged at a preset light sensor position, that is, between the second column B sub-pixel and the third column R sub-pixel. The light sensor 4 has routing 1, routing 2, and routing 3, wherein routing 3 is responsible for information output (Readout). In addition, corresponding to the position of the light sensor 4, a dummy position of the light sensor is also provided on the display panel, and the dummy position can also be configured with a light sensor. In this wiring method, since the output polarities of data routing D2 and data routing D3 are opposite, routing 3 is less interfered by data routing D2 and data routing D3 on both sides, achieving a higher signal-to-noise ratio, but the risk of display crosstalk is higher.
[0004] See also Figure 2 , Figure 2The wiring diagram of a display panel using flip pixel arrangement in the prior art. The pixel units on the display panel are arranged in rows and columns. The R, G, and B sub-pixels that constitute the same pixel unit are arranged in rows horizontally, and the sub-pixels of the same column of pixel units are arranged in columns vertically. The sub-pixels in the same row are connected to the same row of scan lines. The polarities of two adjacent sub-pixels in the same row are opposite, and the polarities of two adjacent sub-pixels in the same column are opposite. In the attached figure, the + and - signs represent opposite polarities. A light sensor 4 is arranged at a preset light sensor position, that is, between the second column B sub-pixel and the third column R sub-pixel. The light sensor 4 has routing 1, routing 2, and routing 3, wherein routing 3 is responsible for information output. In addition, corresponding to the position of the light sensor 4, a dummy position of the light sensor is also provided on the display panel, and the dummy position can also be configured with a light sensor. Under this wiring method, since the output polarities of the data routing D3 on both sides of the light sensor 4 are the same, routing 3 is greatly affected by the data routing D3 on both sides, and the signal-to-noise ratio is poor. Summary of the invention
[0005] Embodiments of the present application provide a display panel and a display device to reduce the risk of crosstalk of an integrated light sensor in the display panel.
[0006] In a first aspect, an embodiment of the present application provides a display panel, including:
[0007] The pixel units are arranged in rows and columns, the sub-pixels constituting the same pixel unit are arranged in rows horizontally, and the sub-pixels in the same column of pixel units are arranged in columns vertically, the sub-pixels in the same row are connected to the same row of scan lines, the polarities of two adjacent sub-pixels in the same row are opposite, and the polarities of two adjacent sub-pixels in the same column are opposite;
[0008] Each column of sub-pixels is provided with a corresponding first column of data line routing and a second column of data line routing, wherein the first column of data line routing is connected to the odd-numbered rows of the corresponding column of sub-pixels, and the second column of data line routing is connected to the even-numbered rows of the corresponding column of sub-pixels;
[0009] At least one photosensor is disposed between a first column of sub-pixels and a second column of sub-pixels adjacent to each other, and is located between a second column of data line routing of the first column of sub-pixels and a first column of data line routing of the second column of sub-pixels.
[0010] Optionally, the pixel unit consists of an R sub-pixel, a G sub-pixel, a B sub-pixel and a W sub-pixel.
[0011] Optionally, the pixel unit consists of an R sub-pixel, a G sub-pixel and a B sub-pixel.
[0012] Optionally, pixel units in the same row are arranged cyclically in the order of G sub-pixels, B sub-pixels and R sub-pixels.
[0013] Optionally, a first light sensor and a second light sensor are included, and data line routings corresponding to two sides of the first light sensor are respectively connected to data line routings corresponding to two sides of the second light sensor.
[0014] Optionally, at least one dummy position is disposed between a first column of sub-pixels and a second column of sub-pixels adjacent to each other, and is located between a second column of data line routing of the first column of sub-pixels and a first column of data line routing of the second column of sub-pixels.
[0015] Optionally, the data line routing lines corresponding to two sides of the optical sensor are respectively connected to the data line routing lines corresponding to two sides of the dummy element position.
[0016] Optionally, multiple light sensors are included.
[0017] Optionally, the multiple light sensors are distributed in rows and columns between the pixel units.
[0018] In a second aspect, an embodiment of the present application further provides a display device, comprising a display panel as described in any one of the above items.
[0019] The display panel provided in the embodiment of the present application can balance the influence of the data lines on both sides of the light sensor by selecting the data lines on both sides of the light sensor to have opposite polarities, thereby achieving a higher signal-to-noise ratio with a better display effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
[0021] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.
[0022] Figure 1 The figure is a wiring diagram of a display panel using a stripe pixel arrangement in the prior art.
[0023] Figure 2 The schematic diagram of wiring of a display panel adopting flip pixel arrangement in the prior art.
[0024] Figure 3 A schematic diagram of display panel wiring provided in an embodiment of the present application. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0026] The embodiment of the present application provides a display panel, in which the data lines on both sides of the optical sensor in the flip arrangement are selected to have opposite polarities, so as to balance the influence of the data lines on both sides on the optical sensor, achieve a higher signal-to-noise ratio while achieving a better display effect and reduce the crosstalk risk of the integrated optical sensor in the display panel. The following will be described in conjunction with the accompanying drawings.
[0027] For example, see Figure 3 , Figure 3 A schematic diagram of display panel wiring provided in an embodiment of the present application. Figure 3 The illustrated embodiment is generally based on a display panel with a flip pixel arrangement. The pixel units on the display panel are arranged in rows and columns. The R, G, and B sub-pixels that constitute the same pixel unit are arranged in rows horizontally, and the R, G, and B sub-pixels of the same column of pixel units are arranged in columns vertically. The sub-pixels in the same row are connected to the same row of scan lines. The polarities of two adjacent sub-pixels in the same row are opposite, and the polarities of two adjacent sub-pixels in the same column are opposite. In the accompanying drawings, + and - signs represent opposite polarities. A light sensor 4 is arranged at a preset light sensor position, that is, between the second column B sub-pixel and the third column R sub-pixel. The light sensor 4 has routing 1, routing 2, and routing 3, wherein routing 3 is responsible for information output. Corresponding to the position of the light sensor 4, a dummy position of the light sensor is also provided on the display panel. Those skilled in the art can understand that the dummy position can also be configured with a light sensor. In addition, for a display panel with a flip pixel arrangement, the corresponding chip needs to support the driving of interlaced pixels by the same data line routing.
[0028] Those skilled in the art will understand that Figure 3 Only a small part of the display panel is taken as an example to illustrate the present invention. In fact, the display panel may include a plurality of pixel units and a plurality of light sensors. The pixel unit is not limited to being composed of R sub-pixels, G sub-pixels and B sub-pixels, and the pixel units in the same row are not limited to being arranged in a circular sequence of G sub-pixels, B sub-pixels and R sub-pixels; the pixel unit may also be composed of R sub-pixels, G sub-pixels, B sub-pixels and W sub-pixels. The pixel units may also be arranged in a circular sequence of other sub-pixels. The light sensor 4 may be selected according to the light energy sensing type, and may be different types of light sensors such as ambient light, infrared light, ultraviolet light, etc.
[0029] The first column of G sub-pixels is provided with corresponding data line routings D1 and D2, the data line routing D1 is connected to the odd-numbered rows of the first column of G sub-pixels, and the data line routing D2 is connected to the even-numbered rows of the first column of G sub-pixels; the second column of B sub-pixels is provided with corresponding data line routings D2 and D3, the data line routing D2 is connected to the odd-numbered rows of the second column of B sub-pixels, and the data line routing D3 is connected to the even-numbered rows of the second column of B sub-pixels; the third column of R sub-pixels is provided with corresponding data line routings D4 and D5, the data line routing D4 is connected to the even-numbered rows of the third column of R sub-pixels, and the data line routing D5 is connected to the even-numbered rows of the third column of R sub-pixels; The fourth column of G sub-pixels is provided with corresponding data lines D5 and D6, data line D5 is connected to the even rows of the fourth column of G sub-pixels, and data line D6 is connected to the odd rows of the fourth column of G sub-pixels; the fifth column of B sub-pixels is provided with corresponding data lines D6 and D3, data line D6 is connected to the even rows of the fifth column of B sub-pixels, and data line D3 is connected to the odd rows of the fifth column of B sub-pixels; the sixth column of R sub-pixels is provided with corresponding data lines D4 and D1, data line D4 is connected to the odd rows of the sixth column of R sub-pixels, and data line D1 is connected to the even rows of the sixth column of R sub-pixels. Among them, the light sensor 4 is located between the second column of B sub-pixels and the third column of R sub-pixels, and between the data lines D3 and D4. Since the input polarities of the data lines D3 and D4 are different, the influence of the data lines on the light sensor on both sides can be balanced, so that a higher signal-to-noise ratio can be achieved with a better display effect, and the crosstalk risk of the integrated light sensor in the display panel can be reduced.
[0030] Those skilled in the art can understand that, according to the function changes to be achieved by the integrated optical sensor in the display panel, a plurality of optical sensors can be set in the display panel, and each sensor can be distributed in the display panel in an array form, or distributed in the display panel in other ways according to the function. The data line routings corresponding to the two or more optical sensors on both sides can be connected respectively to balance the influence of the data line routings on both sides on the optical sensors, so that a higher signal-to-noise ratio can be achieved under the condition of better display effect, and the crosstalk risk of the integrated optical sensor in the display panel can be reduced. Similarly, a plurality of dummy positions can be set in the display panel, and the dummy position is set between a first column of adjacent sub-pixels and a second column of adjacent sub-pixels, and is located between the second column of data line routings of the first column of sub-pixels and the first column of data line routings of the second column of sub-pixels. The data line routings corresponding to the two sides of the optical sensor can also be connected to the corresponding data line routings on both sides of the dummy position respectively, so as to balance the influence of the data line routings on both sides on the optical sensor, so that a higher signal-to-noise ratio can be achieved under the condition of better display effect, and the crosstalk risk of the integrated optical sensor in the display panel can be reduced.
[0031] The present application also provides a display device, which includes the display panel
[0032] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0033] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. The display panel provided in the embodiment of the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation methods and scope of application. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A display panel, characterized in that: include: The pixel units are arranged in rows and columns, the sub-pixels constituting the same pixel unit are arranged in rows horizontally, and the sub-pixels in the same column of pixel units are arranged in columns vertically, the sub-pixels in the same row are connected to the same row of scan lines, the polarities of two adjacent sub-pixels in the same row are opposite, and the polarities of two adjacent sub-pixels in the same column are opposite; Each column of sub-pixels is provided with a corresponding first column of data line routing and a second column of data line routing, wherein the first column of data line routing is connected to the odd-numbered rows of the corresponding column of sub-pixels, and the second column of data line routing is connected to the even-numbered rows of the corresponding column of sub-pixels; At least one light sensor is disposed between a first column of sub-pixels and a second column of sub-pixels adjacent to each other, and is located between a second column of data line routing of the first column of sub-pixels and a first column of data line routing of the second column of sub-pixels; At least one dummy position is arranged between a first column of sub-pixels and a second column of sub-pixels adjacent to each other, and is located between a second column of data line routing of the first column of sub-pixels and a first column of data line routing of the second column of sub-pixels; The data line routing lines corresponding to the two sides of the optical sensor are respectively connected to the data line routing lines corresponding to the two sides of the dummy element position.
2. The display panel according to claim 1, characterized in that: The pixel unit is composed of an R sub-pixel, a G sub-pixel, a B sub-pixel and a W sub-pixel.
3. The display panel according to claim 1, characterized in that: The pixel unit is composed of an R sub-pixel, a G sub-pixel and a B sub-pixel.
4. The display panel according to claim 3, characterized in that: The pixel units in the same row are arranged cyclically in the order of G sub-pixels, B sub-pixels and R sub-pixels.
5. The display panel according to claim 1, characterized in that: It comprises a first light sensor and a second light sensor, wherein the data lines corresponding to two sides of the first light sensor are respectively connected to the data lines corresponding to two sides of the second light sensor.
6. The display panel according to claim 1, characterized in that: Includes multiple light sensors.
7. The display panel according to claim 6, characterized in that: The plurality of light sensors are distributed in rows and columns between the pixel units.
8. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 7.
Citation Information
Patent Citations
Optical sensing touch control display panel
CN102789342A