Organic light emitting display panel, display device and display method thereof

Abstract

The present invention discloses an organic light-emitting display panel, a display device and a display method thereof. The organic light-emitting display panel comprises a first display area and a second display area; the first display area and the second display area both comprise a plurality of pixel units; each pixel unit comprises a plurality of sub-pixels; within a unit area, the occupied area of ​​the sub-pixels in the first display area is smaller than the occupied area of ​​the sub-pixels in the second display area, so as to increase the area of ​​the light-transmitting region of the first display area, so that the photosensitive element located on the backlight side of the first display area can fully receive the ambient light through the first display area, thereby realizing the full-screen display of the organic light-emitting display panel and further improving the screen-to-body ratio of the display screen.

Description

[0001] This application is a divisional application with the application date of June 28, 2018, application number 201810690805.1, and the name of the invention being “A display device and a display method thereof”. Technical Field

[0002] The present invention relates to the field of display technology, and in particular to an organic light emitting display panel, a display device and a display method thereof. Background Art

[0003] With the vigorous development of Internet technology and display technology, smart mobile terminal devices play an increasingly important role in people's daily lives. Through these smart mobile terminal devices, you can get the latest information anytime and anywhere, realize real-time interaction with other smart devices, and meet various needs in life, work and life. At the same time, people have put forward higher requirements for the display effect of smart mobile terminals with display screens. In the display field, "borderless" and "full screen" display screens have become research hotspots. A larger screen-to-body ratio brings users a better visual experience and can also display more information. Therefore, the pursuit of a larger screen-to-body ratio has become the mainstream development trend of display products.

[0004] However, since display devices usually need to be equipped with optical elements such as cameras and indicator lights, all of which need to be set on the surface of the display screen in order to better sense light and perform their functions, the display screen will have to sacrifice a certain screen-to-body ratio to place these components, which will limit the further improvement of the screen-to-body ratio of the display screen and cannot achieve true full-screen display. Summary of the invention

[0005] The present invention provides an organic light emitting display panel, a display device and a display method thereof, which are used to further improve the screen-to-body ratio of a display screen.

[0006] In a first aspect, the present invention provides an organic light emitting display panel, comprising a first display area and a second display area; wherein:

[0007] The first display area and the second display area both include: a plurality of pixel units; each of the pixel units includes a plurality of sub-pixels; within a unit area, the occupied area of ​​the sub-pixels of the first display area is smaller than the occupied area of ​​the sub-pixels of the second display area, so as to increase the area of ​​the light-transmitting region of the first display area.

[0008] In a second aspect, the present invention provides a display device, comprising any one of the above-mentioned organic light-emitting display panels and an optical element, wherein the optical element is located on a side of the organic light-emitting display panel away from a light-emitting surface of the first display area.

[0009] In a third aspect, the present invention provides a display method based on any one of the above display devices, comprising:

[0010] When the first display area and the second display area are displayed simultaneously, the driving current of each pixel unit in the first display area is increased to make the overall display brightness of the first display area consistent with the overall display brightness of the second display area.

[0011] The beneficial effects of the present invention are as follows:

[0012] The organic light-emitting display panel, display device and display method provided by the present invention include a first display area and a second display area; wherein the first display area and the second display area both include: a plurality of pixel units; each pixel unit includes a plurality of sub-pixels; the occupied area of ​​the sub-pixels in the first display area is smaller than the occupied area of ​​the sub-pixels in the second display area per unit area. By reducing the occupied area of ​​the sub-pixels in the first display area to increase the area of ​​the light-transmitting area of ​​the first display area, the photosensitive element located on the backlight side of the first display area can fully receive ambient light through the first display area and play a photosensitive role, thereby realizing full-screen display of the organic light-emitting display panel and further improving the screen-to-body ratio of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 One of the structural schematic diagrams of the display device provided by the embodiment of the present invention;

[0014] Figure 2 A schematic diagram of display area distribution provided by an embodiment of the present invention;

[0015] Figure 3 One of the schematic diagrams of the pixel unit arrangement structure provided by an embodiment of the present invention;

[0016] Figure 4 A second schematic diagram of a pixel unit arrangement structure provided by an embodiment of the present invention;

[0017] Figure 5 The third schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

[0018] Figure 6 A fourth schematic diagram of a pixel unit arrangement structure provided by an embodiment of the present invention;

[0019] Figure 7 A fifth schematic diagram of a pixel unit arrangement structure provided by an embodiment of the present invention;

[0020] Figure 8 The sixth schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

[0021] Fig. 9 The seventh schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

[0022] Fig.10 One of the schematic diagrams of the driving structure of the organic light emitting display panel provided in an embodiment of the present invention;

[0023] Fig.11 A second schematic diagram of a driving structure of an organic light emitting display panel provided in an embodiment of the present invention;

[0024] Fig.12 A third schematic diagram of a driving structure of an organic light emitting display panel provided in an embodiment of the present invention;

[0025] Fig.13 A second structural schematic diagram of a display device provided by an embodiment of the present invention;

[0026] Fig.14 A schematic diagram of a pixel circuit structure provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In view of the problems existing in the prior art, the embodiments of the present invention provide an organic light emitting display panel, a display device and a display method thereof, so as to further improve the screen-to-body ratio of the display screen.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described below with reference to the accompanying drawings and examples. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concepts of the exemplary embodiments to those skilled in the art. The same figure marks in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all explained using the accompanying drawings as examples, but changes can be made as needed, and the changes made are all included in the scope of protection of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship and do not represent the true proportions.

[0029] It should be noted that specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The subsequent description of the specification is a preferred embodiment of the present application, but the description is for the purpose of illustrating the general principles of the present application and is not intended to limit the scope of the present application. The scope of protection of the present application shall be determined by the definition of the attached claims.

[0030] The organic light emitting display panel, display device and display method provided by the embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The sizes and shapes of the components in the accompanying drawings do not reflect the actual proportions of the display device, but are only intended to illustrate the contents of the present invention.

[0031] like Figure 1 As shown, the display device provided by the embodiment of the present invention includes: an organic light-emitting display panel 100, a photosensitive element 200 and an indicator light 300; the organic light-emitting display panel 100 includes a first display area 11 and a second display area 12, and the photosensitive element 200 and the indicator light 300 are located on the side away from the light-emitting surface of the first display area 11.

[0032] The first display area 11 and the second display area 12 both include: a plurality of pixel units, each pixel unit including a plurality of sub-pixels. For distinguishing purposes, the plurality of pixel units included in the first display area 11 are represented as pixel units P11, and the plurality of pixel units included in the second display area are represented as pixel units P12; the sub-pixels included in each pixel unit P11 in the first display area are represented as sub-pixels 111, and the sub-pixels included in each pixel unit P12 in the second display area are represented as sub-pixels 121.

[0033] like Figure 1 As shown, within a unit area, the occupied area of ​​the sub-pixel 111 of the first display area 11 is smaller than the occupied area of ​​the sub-pixel 121 of the second display area 12 , so as to increase the area of ​​the light-transmitting region of the first display area 11 .

[0034] It should be noted that the area occupied by a sub-pixel refers to the area occupied by a sub-pixel per unit area (1 cm 2 or 1mm 2 For example, if the unit area (1mm 2 ) contains three sub-pixels of the same size, and the area of ​​each sub-pixel is 10μm 2 , then the area occupied by the three sub-pixels in this unit area is 30μm 2 .

[0035] It is understandable that the organic light-emitting diode device is used as the light-emitting sub-pixel in the organic light-emitting display panel, and the pixel unit is composed of sub-pixels of different colors for image display. In the manufacturing process of the organic light-emitting display panel 100, light-transmitting materials are mostly used to form various functional film layers. Generally, only the reflective electrode and signal routing of the organic light-emitting diode device are made of opaque materials, and these opaque components are concentrated in the organic light-emitting diode device and its vicinity. The spacing area of ​​the organic light-emitting diode device, that is, the non-pixel setting area, is mostly transparent. In the above-mentioned display device provided by the embodiment of the present invention, the occupied area of ​​each sub-pixel included in the first display area 11 of the organic light-emitting display panel is set in the same unit area. The occupied area of ​​each sub-pixel included in the second display area 12 is smaller than the occupied area of ​​each sub-pixel included in the second display area 12, thereby increasing the occupied area of ​​the non-pixel setting area in the first display area 11, so that the first display area 11 has a larger area of ​​light-transmitting area relative to the second display area 12, thereby obtaining a higher light transmittance, and the external ambient light can pass through the non-pixel setting area of ​​the first display area 11 to reach the inside of the display panel. Furthermore, the display device provided in the embodiment of the present invention arranges the photosensitive element and the indicator light and other elements on the side away from the light-emitting surface of the first display area 11, such as Figure 1 As shown, the photosensitive element 200 and the indicator light 300 can be arranged on the back of the first display area 11 relative to the organic light-emitting display panel 100, and the area of ​​the light-transmitting region of the first display area 11 is relatively large, so that the photosensitive element 200 can fully receive ambient light through the first display area 11 to play a photosensitizing role; the light emitted by the indicator light 300 can also be effectively emitted outward through the first display area 11, thereby no longer needing to reserve positions for components such as the photosensitive element 200 and the indicator light 300 when manufacturing the organic light-emitting display panel 100, but reasonably adjusting the pixel arrangement of the display area corresponding to the photosensitive element 200 and the indicator light 300 so that the display area has higher light transmittance, so that the photosensitive element and the indicator light can be arranged on the back of the organic light-emitting display panel, thereby realizing full-screen display of the organic light-emitting display panel, and further improving the screen-to-body ratio of the display screen.

[0036] In a specific implementation, the distribution of the first display area 11 and the second display area of ​​the organic light emitting display panel can be referred to in Figure 2. Among them, the first display area 11 can be located at the top of the display panel, for displaying simple information such as time, weather, operator, power consumption, etc., and components such as photosensitive elements and indicator lights can be arranged on the back of the first display area 11 relative to the organic light-emitting display panel 100. The second display area 12 can be a high-resolution display area for image display. The pixel arrangement of the second display area 12 can be any pixel arrangement in the prior art, and its resolution can also reach the resolution of any display panel in the prior art, which is not limited here. The above-mentioned photosensitive element 200 can be one or more of a camera, a face recognizer, and a light intensity sensor. In addition, other components with photosensitive functions can also be included, which are not limited here.

[0037] In order to improve the transmittance of the first display area 11 of the organic light-emitting display panel, the embodiments of the present invention provide the following pixel arrangement methods. The following implementation methods are all examples and are not all implementation methods of the present invention. Other variations based on the inventive concept of the present invention belong to the protection scope of the present invention.

[0038] In an practicable manner, the pixel arrangement structure of the organic light emitting display panel provided by the embodiment of the present invention is as follows: Figure 3 As shown, the spacing d1 between each sub-pixel 111 in each pixel unit P11 in the first display area 11 is equal to the spacing d2 between each sub-pixel 121 in each pixel unit P12 in the second display area 12; and the spacing between adjacent pixel units P11 in the first display area 11 is greater than the spacing between adjacent pixel units P12 in the second display.

[0039] The spacing between adjacent pixel units may be the spacing between adjacent pixel units along the row direction or the spacing between adjacent pixel units along the column direction. Figure 3 Taking the pixel structure shown as an example, the spacing w1 between adjacent pixel units P11 in the first display area along the row direction is equal to the spacing w2 between adjacent pixel units P12 in the second display area, and the spacing h1 between adjacent pixel units P11 in the first display area along the column direction is greater than the spacing h2 between adjacent pixel units P12 in the second display area.

[0040] A pixel unit can be regarded as a light-emitting unit of the display screen. In the above-mentioned pixel arrangement structure, the spacing between sub-pixels inside each pixel unit of the first display area 11 and the second display area 12 of the organic light-emitting display panel is equal, so the light-emitting effect of each pixel unit as a light-emitting unit is basically the same, and the overall display effect of the first display area 11 and the second display area 12 is similar. At the same time, the spacing between adjacent pixel units P11 in the first display area 11 is increased, which can increase the area of ​​the light-transmitting area of ​​the first display area 11, thereby being more conducive to the light sensing of the photosensitive element 200 located behind the first display area 11, and can realize the full-screen display of the organic light-emitting display panel 100, further improving the screen-to-body ratio of the display screen.

[0041] remove Figure 3 In addition to the pixel arrangement structure shown in FIG. 1 , in a specific implementation, another method may be used. Figure 4 In the pixel arrangement structure shown, the spacing d1 between each sub-pixel 111 in each pixel unit P11 of the first display area 11 is equal to the spacing d2 between each sub-pixel 121 in each pixel unit P12 of the second display area 12; the spacing w1 between adjacent pixel units P11 in the first display area 11 along the row direction is greater than the spacing w2 between adjacent pixel units P12 in the second display area 12, and at the same time, the spacing h1 between adjacent pixel units P11 in the first display area 11 along the column direction is greater than the spacing h2 between adjacent pixel units P12 in the second display area 12.

[0042] The spacing between adjacent pixel units P11 in the first display area 11 is increased in both the row direction and the column direction, thereby further increasing the area of ​​the light-transmitting region of the first display area 11 , which is beneficial to the photosensitivity of the photosensitive element 200 .

[0043] In addition, in the specific implementation, you can also use Figure 5 The pixel arrangement structure shown in FIG. Figure 5 As shown, the number of sub-pixels 111 included in the first display area 11 is equal to the number of sub-pixels 121 included in the second display area 12 per unit area; the size of the sub-pixel 111 in the first display area 11 is smaller than the size of the sub-pixel 121 in the second display area 12 .

[0044] like Figure 5 As shown, the spacing d1 between each sub-pixel 111 in each pixel unit P11 of the first display area 11 is equal to the spacing between each sub-pixel 121 in each pixel unit P12 of the second display area 12, and the spacing h1 between adjacent pixel units in the first display area 11 is increased by reducing the size of each sub-pixel in the first display area 11. Figure 5It can be seen that the number of pixel units (and sub-pixels) contained in the first display area 11 and the second display area 12 per unit area is equal, so the first display area 11 and the second display area 12 have the same PPI (Pixel Per Inch). The use of this pixel arrangement structure can increase the area of ​​the light-transmitting region of the first display area 11 without reducing the PPI of the display panel, which can not only make the photosensitive element 200 located behind the first display area 11 have a better photosensitivity effect, but also ensure that the first display area 11 has a better display effect.

[0045] In another practicable manner, the pixel arrangement structure of the organic light emitting display panel provided by the embodiment of the present invention is as follows: Figure 6 As shown, the spacing between adjacent pixel units P11 in the first display area 11 is equal to the spacing between adjacent pixel units P12 in the second display area 12; the spacing d1 between each sub-pixel 111 in each pixel unit P11 of the first display area 11 is greater than the spacing d2 between each pixel 121 in each pixel unit P12 of the second display area 12.

[0046] The spacing between adjacent pixel units may be the spacing between adjacent pixel units along the row direction or the spacing between adjacent pixel units along the column direction. Figure 6 Taking the pixel structure shown as an example, the spacing w1 between adjacent pixel units P11 in the first display area 11 along the row direction is equal to the spacing w2 between adjacent pixel units P12 in the second display area 12, and the spacing h1 between adjacent pixel units P11 in the first display area 11 along the column direction is also equal to the spacing h2 between adjacent pixel units P12 in the second display area 12.

[0047] On the premise of ensuring that the spacing between adjacent pixel units in the first display area 11 and the second display area 12 is equal, increasing the spacing between sub-pixels 111 inside the pixel unit of the first display area 11 can be achieved in the following two ways: first, without increasing the size of the pixel unit, reducing the size of each sub-pixel to obtain a larger spacing between sub-pixels, thereby improving the transmittance of the first display area 11; second, without reducing the size of the sub-pixel, increasing the size of the pixel unit to allow a larger spacing between sub-pixels, thereby increasing the area of ​​the light-transmitting region of the first display area 11.

[0048] In practical applications, the high PPI display panel minimizes the spacing between pixel units and between each sub-pixel inside the pixel unit during the manufacturing process to obtain more pixel units per unit area, which will also cause the transmittance of such a display area to be low. When the first pixel arrangement structure is adopted, the PPI of the first display area 11 will not be reduced, and the area of ​​the light-transmitting area of ​​the first display area 11 can be increased; however, since the size of the sub-pixel needs to be further reduced, the manufacturing process difficulty increases for the display screen that originally has a higher PPI. When the second pixel arrangement structure is adopted, since the first display area 11 corresponds to the display area where the photosensitive element 200 and the indicator light 300 are set, and this part of the display area is usually used to display a relatively simple image, the requirement for PPI is not high. By reducing the PPI of the first display area 11 to obtain a higher transmittance of the first display area 11, the photosensitivity requirements of the photosensitive element are met, and a higher screen-to-body ratio of the display screen is achieved. And the size of the sub-pixels in the first display area 11 and the second display area 12 is the same, which will not cause the problem of increased difficulty in the sub-pixel manufacturing process.

[0049] For example, Figure 6 and Figure 7 As shown, two PPI pixel arrangement structures of the first display area 11 are shown, wherein the size of the sub-pixel 111 in the first display area 11 is equal to the size of the sub-pixel 121 in the second display area 12; and the number of sub-pixels 111 included in the first display area 11 per unit area is less than the number of sub-pixels 121 included in the second display area 12. Figure 7 The PPI of the first display area 11 is higher than Figure 6 The PPI of the first display area 11 is shown, and Figure 6 The light transmittance of the first display area 11 is greater than Figure 7 The light transmittance of the first display area 11 is shown in FIG. Figure 6 As shown, the first display area 11 and the second display area 12 are still sub-pixels of the same color in the column direction, and the size of the pixel unit in the first display area 11 is twice the size of the pixel unit in the second display area 12. Figure 7 As shown, the colors of the sub-pixel columns in the first display area 11 and the second display area 12 in the column direction are not completely the same, but the size of the pixel unit in the first display area 11 is 1.8 times the size of the pixel unit in the second display area 12. In specific implementation, the pixel arrangement mode can be selected according to actual conditions, and is not limited here.

[0050] In another practicable manner, the pixel arrangement structure of the organic light emitting display panel provided by the embodiment of the present invention is as follows: Figure 8As shown, the spacing between adjacent pixel units P11 in the first display area 11 is greater than the spacing between adjacent pixel units P12 in the second display area 12; the spacing d1 between each sub-pixel 111 in each pixel unit P11 in the first display area 11 is greater than the spacing d2 between each pixel 121 in each pixel unit P12 in the second display area 12.

[0051] Similarly, the spacing between adjacent pixel units can be the spacing between adjacent pixel units along the row direction or the spacing between adjacent pixel units along the column direction. Figure 8 Taking the pixel structure shown in FIG. 1 as an example, the spacing w1 between adjacent pixel units P11 in the first display area 11 along the row direction is greater than the spacing w2 between adjacent pixel units P12 in the second display area 12, and the spacing h1 between adjacent pixel units P11 in the first display area 11 along the column direction is greater than the spacing h2 between adjacent pixel units P12 in the second display area 12. Fig. 9 Taking the pixel structure shown as an example, the spacing w1 between adjacent pixel units P11 in the first display area 11 along the row direction is equal to the spacing w2 between adjacent pixel units P12 in the second display area 12, while the spacing h1 between adjacent pixel units P11 in the first display area 11 along the column direction is greater than the spacing h2 between adjacent pixel units P12 in the second display area 12. In specific implementation, the area of ​​the light-transmitting region of the first display area can also be increased by increasing the spacing between adjacent pixel units along the row direction, which is not limited here.

[0052] By adopting the above-mentioned pixel arrangement method and increasing the spacing between pixel units in the first display area 11 and between each sub-pixel in the pixel unit at the same time, the area of ​​the light-transmitting region of the first display area 11 can be maximized, thereby improving the transmittance of the first display area 11. The higher the transmittance of the first display area 11, the better the photosensitivity condition of the photosensitive element 200 located behind the first display area 11, which is beneficial to improving the photosensitivity quality of the photosensitive element 200.

[0053] Furthermore, if Figure 8 and Fig. 9 As shown, in this embodiment, the number of sub-pixels 111 included in the first display area 11 per unit area is less than the number of sub-pixels 121 included in the second display area 12; the size of the sub-pixels 111 in the first display area is less than the size of the sub-pixels 121 in the second display area. By reducing the size of the sub-pixels in the first display area 11, a larger spacing between adjacent pixel units can be obtained along the column direction, thereby greatly improving the light transmittance of the first display area 11. Figure 8 The pixel structure shown is compared to the Fig. 9 The pixel structure shown can obtain a higher light transmittance of the first display area 11, but Fig. 9 The pixel structure shown is compared to Fig. 9 The pixel structure shown has a high PPI, so in practical applications, the transmittance and pixel resolution can be comprehensively considered to select a suitable pixel arrangement, which is not limited here.

[0054] by Figure 5 , Figure 6 as well as Figure 8 The three pixel arrangement structures shown in the figure are used to specifically illustrate the light transmittance of the first display area 11. Figure 5 When the pixel arrangement structure shown in FIG. 1 is used, the size of the sub-pixel 111 of the first display area 11 is 1 / 4 of the size of the sub-pixel 121 of the second display area 12. Then, when the spacing between adjacent pixel units is equal, the transmittance of the first display area 11 can be increased to 75%. Figure 6 When the pixel arrangement structure shown in FIG. 1 is used, the PPI of the first display area 11 is 1 / 3 of the PPI of the second display area 12, thereby increasing the light transmittance of the first display area 11 to 76%. Figure 8 In the pixel arrangement structure shown, the PPI of the first display area 11 is 1 / 3 of the PPI of the second display area 12, and the size of the sub-pixel 111 of the first display area 11 is 1 / 4 of the size of the sub-pixel 121 of the second display area 12, thereby increasing the transmittance of the first display area 11 to 92%. In practical applications, the sub-pixel size and the display PPI are mutually restrictive with the display effect. The smaller the sub-pixel size and the lower the display PPI, the lower the display resolution of the area and the worse the display effect. Reducing the sub-pixel size and lowering the display PPI are beneficial to increasing the transmittance of the area. The higher the transmittance, the better the photosensitivity of the photosensitive element located behind the area. Therefore, in practical applications, it is necessary to comprehensively consider the display effect and transmittance to set the appropriate pixel size and display PPI. The present invention is Figure 3-Figure 9 Experimental verification of various pixel arrangement structures shows that setting the size of the sub-pixel 111 in the first display area 11 to be within the range of 1 / 4-1 / 2 of the size of the sub-pixel 121 in the second display area 12 can obtain a better transmittance of the first display area 11, and the display effect level meets the actual use requirements. However, with the advancement of technology, the manufacture of organic light-emitting diode devices with higher luminous brightness or the realization of more sophisticated processing technology to make the sub-pixel size exceed the above range also falls within the scope of protection of the present invention, and is not specifically limited here.

[0055] Since the pixel arrangement structures of the first display area and the second display area are different, the driving methods of the two display areas can be adopted in a variety of ways. Figure 3 , Figure 5 , Figure 6 as well as Figure 8In the pixel arrangement structure shown, sub-pixels of the same color in the first display area 11 and the second display area 12 are arranged in multiple columns, and each column of sub-pixels in the first display area 11 is aligned with the corresponding column of sub-pixels of the same color in the second display area 12 .

[0056] For the above pixel arrangement structure, Fig.10 and Fig.11 As shown, the organic light-emitting display panel 100 also includes: a plurality of data signal lines 13 extending in the direction of sub-pixel columns; the number of data signal lines 13 is equal to the number of sub-pixels 121 included in each sub-pixel row in the second display area; the sub-pixels in the first display area 11 and the sub-pixels in the second display area 12 located in the same column share the same data signal line; and the lengths of the data signal lines 13 are equal. In an embodiment of the present invention, sub-pixels in the same column of the first display area 11 and the second display area 12 share the data signal line 13, and there is no need to set data signal lines for the first display area 11 and the second display area 12 respectively, thereby reducing the area of ​​the display region occupied by the data signal lines. In order to improve the transmittance of the first display area 11, there may be a situation where the first display area 11 contains fewer sub-pixel columns than the second display area (such as Figure 5 , Figure 6 or Figure 8 As shown in the figure, while at this time keeping the data signal lines 13 with the same length, the load difference between the data signal lines caused by the different numbers of sub-pixels connected to the data signal lines can be reduced to a certain extent, which is beneficial to improving the display effect.

[0057] For Figure 4 , Figure 7 as well as Fig. 9 In the pixel arrangement of the organic light emitting display panel shown in the figure, the sub-pixels in the same column have different colors in the first display area 11 and the second display area 12, or the sub-pixel columns of the same color in the first display area 11 and the second display area 12 are not aligned with each other. In this case, the corresponding sub-pixel columns can still share the same data signal line. For example, Figure 4 In the case shown in FIG. 1 , the data signal line can be deformed at the boundary between the first display area 11 and the second display area 12 so that sub-pixel columns of the same color can share the same data signal line; and for Figure 7 and Fig. 9 In the case shown, the sub-pixels in the same column can share the same data signal line, and the output data signal can be converted accordingly at the driver chip end during driving.

[0058] In addition, Fig.10 and Fig.11As shown, the organic light-emitting display panel 100 also includes: a gate driving circuit 14 located on the side of the display panel and a driving chip 15 (driving IC) located at the bottom of the display panel. The gate driving circuit 14 cooperates with the driving chip 15 to output data signals to each row of sub-pixels in a time-sharing manner, thereby realizing the driving display of the organic light-emitting display panel. Fig.10 and Fig.11 FIG. 1 shows a driving mode in which the first display area 11 and the second display area 12 are driven by the same gate driving circuit. In practical applications, the first display area 11 and the second display area 12 may also be driven by two independent gate driving circuits. Fig.12 , each row of sub-pixels in the first display area 11 is connected to the gate drive circuit 141 through a gate line, and each row of sub-pixels in the second display area 12 is connected to the gate drive circuit 142 through a gate. The first display area 11 and the second display area 12 are respectively provided with corresponding gate drive circuits, so different images can be displayed on the same display device, or images with different resolutions can be displayed. The driving frequencies for each display area in the display panel can also be different. For example, for the first display area 11, it is used to display simple images such as time, weather, and power, and the change in the displayed image is small, so a low-frequency driving method can be used; and for the second display area 12, it is used to display high-resolution image quality, so a high-frequency driving method can be used to display images with higher picture quality requirements.

[0059] In practical applications, such as Fig.13 As shown, the display device provided by the embodiment of the present invention further includes: a protective cover plate 400 located on the side of the organic light-emitting display panel 100 away from the photosensitive element 200 and the indicator light 300, a main board 500 and a battery 600 located on the side of the second display area 12 away from the protective cover plate 100, and a protective rear shell 700 located on the side of the main board 500 away from the organic light-emitting display panel 100. Among them, the photosensitive element 200 and the indicator light 300 can be connected to the main board 500 and driven by the main board. A bracket for placing components such as the main board 500 and the battery 600 can be provided on the protective rear shell 700. The protective cover plate 400 can be a glass cover plate or the like.

[0060] In addition, since the pixel arrangement structures of the first display area 11 and the second display area 12 are different, in order to achieve a better display effect, the embodiment of the present invention further provides a display method based on any of the above display devices, which may specifically include the following two aspects:

[0061] On the one hand, due to the different pixel arrangement structures of the first display area 11 and the second display area 12, the sub-pixel size of the first display area 11 may be smaller than the sub-pixel size of the second display area 12; the display PPI of the first display area 11 may be smaller than the display PPI of the second display area 12. Therefore, when the first display area 11 and the second display area 13 are displayed at the same time, in order to ensure the uniformity of the display brightness of the first display area 11 and the second display area 12, the driving signal of the first display area 11 needs to be adjusted accordingly. For example, when the first display area 11 and the second display area 12 are used as follows Fig.10 or Fig.11 When the circuit structure shown in FIG. 1 is used, the driving current of each pixel unit in the first display area 11 can be increased to make the overall display brightness of the first display area 11 consistent with the overall display brightness of the second display area 12; and if the first display area 11 and the second display area 12 are configured as shown in FIG. Fig.12 In the circuit structure shown, since the two display areas are driven separately, the first display area 11 may increase the duty cycle of the light-emitting control signal to extend the light-emitting time of the first display area 11 in the same period, so that the overall display brightness of the first display area 11 and the second display area 12 are consistent.

[0062] On the other hand, since the photosensitive element needs to receive ambient light or the light emitted by the object to be measured for image processing, in order to avoid interference of the light emitted by the display panel on the photosensitive element, when the photosensitive element 200 is in the working state, it is necessary to control each pixel unit in the first display area 11 to be in a dark state. The light emission and light emission color of the indicator light 300 are less affected by the image display of the first display area 11. In practical applications, the influence of the first display area 11 on its light emission can be weakened by selecting a suitable color and making the indicator light 300 have a stronger light emission brightness.

[0063] The light emission adjustment of each sub-pixel in the first display area 11 is related to the pixel circuit connected to the sub-pixel. Fig.14Taking the pixel circuit structure shown as an example, the pixel circuit may at least include: a first thin film transistor M1, an initialization thin film transistor M2, a second thin film transistor M3, a driving thin film transistor M4 and an organic light emitting diode OLED; wherein the source of the initialization thin film transistor M2 is generally connected to the reference signal line VREF, and is used to initialize the gate of the driving thin film transistor M4 using the reference potential of the reference signal line VREF when it is in an on state under the control of the first scanning signal line S1; the source of the first thin film transistor M1 is generally connected to the data signal line VDATA, and is used to write the data signal of the data signal line VDATA into the source of the driving thin film transistor M4 when it is in an on state under the control of the second scanning signal line S2; the source of the second thin film transistor M3 is generally connected to the power supply voltage signal line PVDD, and is used to write the power supply signal provided by the power supply voltage signal line PVDD into the source of the driving thin film transistor M4 when it is in an on state under the control of the light emitting control line EMIT.

[0064] Furthermore, the pixel circuit also includes: a light-emitting control thin film transistor M5; the gate of the light-emitting control thin film transistor M5 is connected to the light-emitting control line EMIT, the source is connected to the drain of the driving thin film transistor M4, and the drain is connected to the organic light-emitting diode OLED. When the light-emitting control thin film transistor M5 is in the on state under the control of the light-emitting control line EMIT, the drain of the driving thin film transistor M4 is turned on with the organic light-emitting diode OLED. That is, when the light-emitting control thin film transistor M5 is in the on state under the control of the light-emitting control line EMIT, a path is formed between the power supply voltage signal line PVDD and another power supply voltage signal line PVEE, and the magnitude of the current in the circuit determines the magnitude of the OLED display brightness. Therefore, in the first display area 11, the driving current of each sub-pixel can be adjusted by controlling the data signal of the sub-pixel to achieve the purpose of adjusting the light-emitting brightness of the sub-pixel.

[0065] The display device and display method provided by the present invention include an organic light-emitting display panel 100, a photosensitive element 200 and an indicator light 300; the organic light-emitting display panel 100 includes a first display area 11 and a second display area 12, and the photosensitive element 200 and the indicator light 300 are located on a side away from the light-emitting surface of the first display area 11; wherein the first display area 11 and the second display area 12 both include: a plurality of pixel units; each pixel unit includes a plurality of sub-pixels; within a unit area, the occupied area of ​​the sub-pixels of the first display area 11 is smaller than the occupied area of ​​the sub-pixels of the second display area 12. By reducing the area occupied by the sub-pixels in the first display area 11 to increase the area of ​​the light-transmitting region of the first display area 11, the photosensitive element 200 located on the backlight side of the first display area 11 can fully receive ambient light through the first display area 11 to play a photosensitizing role; the light emitted by the indicator light 300 can also be effectively emitted outward through the first display area 11, thereby no longer needing to reserve positions for components such as the photosensitive element 200 and the indicator light 300 when manufacturing the organic light-emitting display panel 100, thereby realizing full-screen display of the organic light-emitting display panel 100 and further improving the screen-to-body ratio of the display screen.

[0066] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An organic light emitting display panel, characterized in that: include: A first display area and a second display area; wherein, The first display area and the second display area both include: a plurality of pixel units; each of the pixel units includes a plurality of sub-pixels; within a unit area, the occupied area of ​​the sub-pixels in the first display area is smaller than the occupied area of ​​the sub-pixels in the second display area, so as to increase the area of ​​the light-transmitting region of the first display area; The organic light emitting display panel further includes: A plurality of data signal lines extending along the sub-pixel column direction; wherein the plurality of data signal lines extend to the first display area through the second display area; and the sub-pixels in the first display area and the sub-pixels in the second display area located in the same column share the same data signal line; A plurality of gate lines extending in the direction of the sub-pixel rows; wherein the sub-pixels in the first display area of ​​the same row share the same gate line, and the gate line at least partially extends in the first display area; Wherein, in the first display area, the data signal line and the sub-pixel part overlap, and the gate line and the sub-pixel part overlap.

2. The organic light emitting display panel according to claim 1, wherein: The spacing between sub-pixels in each pixel unit in the first display area is equal to the spacing between sub-pixels in each pixel unit in the second display area; The spacing between adjacent pixel units in the first display area is greater than the spacing between adjacent pixel units in the second display area.

3. The organic light emitting display panel according to claim 1, wherein: The number of sub-pixels included in the first display area is equal to the number of sub-pixels included in the second display area within a unit area; The size of the sub-pixel in the first display area is smaller than the size of the sub-pixel in the second display area.

4. The organic light emitting display panel according to claim 1, wherein: The spacing between adjacent pixel units in the first display area is equal to the spacing between adjacent pixel units in the second display area; The spacing between sub-pixels in each pixel unit of the first display area is greater than the spacing between pixels in each pixel unit of the second display area.

5. The organic light emitting display panel according to claim 1, wherein: The size of the sub-pixel in the first display area is equal to the size of the sub-pixel in the second display area; The number of sub-pixels included in the first display area per unit area is smaller than the number of sub-pixels included in the second display area.

6. The organic light emitting display panel according to claim 1, wherein: The spacing between adjacent pixel units in the first display area is greater than the spacing between adjacent pixel units in the second display area; The spacing between sub-pixels in each pixel unit of the first display area is greater than the spacing between pixels in each pixel unit of the second display area.

7. The organic light emitting display panel according to claim 6, wherein: The number of sub-pixels included in the first display area per unit area is smaller than the number of sub-pixels included in the second display area; The size of the sub-pixel in the first display area is smaller than the size of the sub-pixel in the second display area.

8. The organic light emitting display panel according to claim 3 or 7, wherein: The size of the sub-pixel in the first display area is 1 / 4-1 / 2 of the size of the sub-pixel in the second display area.

9. The organic light emitting display panel according to claim 1, wherein: Also includes: A plurality of data signal lines extending along the sub-pixel column direction; the number of the data signal lines is equal to the number of sub-pixels included in each sub-pixel row in the second display area; The sub-pixels in the first display area and the sub-pixels in the second display area in the same column share the same data signal line.

10. The organic light emitting display panel according to claim 1, wherein: Also includes: A plurality of gate driving circuits are located on a side of the organic light emitting display panel, wherein the first display area and the second display area correspond to different gate driving circuits respectively.

11. The organic light emitting display panel according to claim 1, wherein: The driving frequency of the second display area is greater than the driving frequency of the first display area.

12. The organic light emitting display panel according to claim 1, wherein: In the same period, the duty cycle of the light emitting control signal of the first display area is greater than the duty cycle of the light emitting control signal of the second display area.

13. A display device, characterized in that: Comprising the organic light emitting display panel as described in any one of claims 1-12.

14. The display device according to claim 13, wherein: Also includes: An optical element is located on a side of the organic light emitting display panel away from a light emitting surface of the first display area.

15. A display method based on the display device according to claim 13, characterized in that: include: When the first display area and the second display area are displayed simultaneously, the driving current of each pixel unit in the first display area is increased to make the overall display brightness of the first display area consistent with the overall display brightness of the second display area.

16. The display method according to claim 15, characterized in that: The driving frequency of the second display area is greater than the driving frequency of the first display area.

17. The display method according to claim 15, characterized in that: In the same period, the duty cycle of the light emitting control signal of the first display area is greater than the duty cycle of the light emitting control signal of the second display area.

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