CN108922900A - A display device and display method thereof - Google Patents

Abstract

The invention discloses a display device and a display method thereof, comprising an organic light-emitting display panel, a photosensitive element and an indicator light; the organic light-emitting display panel comprises a first display area and a second display area, and the photosensitive element and the indicator lamp are positioned on one side departing from the light-emitting surface of the first display area; the first display area and the second display area comprise a plurality of pixel units; each pixel unit comprises a plurality of sub-pixels; the occupied area of the sub-pixels of the first display area is smaller than that of the sub-pixels of the second display area in a unit area so as to increase the area of the light transmission area of the first display area, and the photosensitive element on the backlight side of the first display area can fully receive ambient light through the first display area; the light that the pilot lamp sent also can pass through the outside effective outgoing of first display area, realizes organic light emitting display panel's comprehensive screen display, has further improved the screen of display screen and has accounted for the ratio.

Description

A display device and display method thereof

technical field

The invention relates to the field of display technology, in particular to a display device and a display method thereof.

Background technique

With the vigorous development of Internet technology and display technology, smart mobile terminal devices play an increasingly important role in people's daily life. Through these smart mobile terminal devices, you can obtain 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 more requirements for the display effect of smart mobile terminals with display screens. In the display field, display screens such as "borderless" and "full screen" have become research hotspots. A larger screen-to-body ratio brings users a better visual experience and can display more information. Therefore, pursuing a larger screen-to-body ratio has become the mainstream development trend of display products.

However, since the display device usually needs to be equipped with optical elements such as cameras and indicator lights on the surface of the display screen, so as to better sense light and perform its functions, the display screen will have to sacrifice a certain screen-to-body ratio to place these components. Components limit the further improvement of the screen-to-body ratio of the display, making it impossible to achieve true full-screen display.

Contents of the invention

The invention provides a display device and a display method thereof, which are used to further increase the screen-to-body ratio of a display screen.

In a first aspect, the present invention provides a display device, including: an organic light-emitting display panel, a photosensitive element, and an indicator light; the organic light-emitting display panel includes a first display area and a second display area, and the photosensitive element and the indicator light The lamp is located on the side away from the light-emitting surface of the first display area; wherein,

Both the first display area and the second display area include: a plurality of pixel units; each of the pixel units includes a plurality of sub-pixels; the occupied area of the sub-pixels in the first display area is smaller than the The occupied area of the sub-pixels in the second display area is to increase the area of the light-transmitting area of the first display area.

In a possible implementation manner, in the above-mentioned display device provided by the present invention, the distance between each sub-pixel in each pixel unit in the first display area is the same as that of each sub-pixel in the second display area. The spacing between the sub-pixels in the pixel unit is equal;

The distance between adjacent pixel units in the first display area is greater than the distance between adjacent pixel units in the second display area.

In a possible implementation manner, in the above display device provided by the present invention, the number of sub-pixels included in the first display area per unit area is equal to the number of sub-pixels included in the second display area;

The size of the sub-pixels in the first display area is smaller than the size of the sub-pixels in the second display area.

In a possible implementation manner, in the above display device provided by the present invention, the distance between adjacent pixel units in the first display area and the distance between adjacent pixel units in the second display area equal;

The spacing between the 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.

In a possible implementation manner, in the above display device provided by the present invention, the size of the sub-pixels in the first display area is equal to the size of the sub-pixels 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.

In a possible implementation manner, in the above display device provided by the present invention, the distance between adjacent pixel units in the first display area is greater than the distance between adjacent pixel units in the second display area;

The spacing between the 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.

In a possible implementation manner, in the above display device provided by the present invention, 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-pixels in the first display area is smaller than the size of the sub-pixels in the second display area.

In a possible implementation manner, in the above display device provided by the present invention, the size of the sub-pixels in the first display area is 1/4-1 of the size of the sub-pixels in the second display area /2.

In a possible implementation manner, in the above display device provided by the present invention, the sub-pixels of the same color in the first display area and the second display area are arranged in multiple columns, and the sub-pixels in the first display area Each column of sub-pixels in the second display area is respectively aligned with the corresponding sub-pixel columns of the same color;

The organic light-emitting display panel further includes: a plurality of data signal lines extending along the direction of the sub-pixel columns; the number of the data signal lines is related to the number of sub-pixels contained in each sub-pixel row in the second display area equal;

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; the lengths of each of the data signal lines are equal.

In a possible implementation manner, in the above display device provided by the present invention, the photosensitive element includes one or more of a camera, a facial recognition device, and a light intensity sensor.

In a possible implementation manner, in the above-mentioned display device provided by the present invention, the display device further includes: a protective cover located on the side of the organic light-emitting display panel away from the photosensitive element, located on the second The display area is away from the main board and the battery on the side of the protective cover, and the protective rear shell is located on the side of the main board away from the organic light emitting display panel.

In a second aspect, the present invention provides a display method based on any of the above display devices, including:

When the first display area and the second display area are displayed at the same time, the driving current of each pixel unit in the first display area is increased, so that the overall display brightness of the first display area is the same as that of the second display area. The overall display brightness of the display area is consistent;

When the photosensitive element is in the working state, each pixel unit in the first display area is controlled to be in a dark state.

The beneficial effects of the present invention are as follows:

The display device and display method thereof provided by the present invention, the display device includes an organic light-emitting display panel, a photosensitive element and an indicator light; the organic light-emitting display panel includes a first display area and a second display area, and the photosensitive element and the indicator light are located away from the first display One side of the light-emitting surface of the area; wherein, both the first display area and the second display area 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 that of the second display area per unit area The occupied area of the sub-pixels in the second display area. By reducing the occupied area of the sub-pixels in the first display area, the area of the light-transmitting area of the first display area is increased, so that the photosensitive element located on the backlight side of the first display area can fully receive ambient light through the first display area, Play a photosensitive role; the light emitted by the indicator light can also be effectively emitted outward through the first display area, so it is no longer necessary to reserve positions for photosensitive elements, indicator lights and other components when making organic light-emitting display panels to achieve organic light emission The full-screen display of the display panel further increases the screen-to-body ratio of the display screen.

Description of drawings

FIG. 1 is one of the structural schematic diagrams of a display device provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of display area distribution provided by an embodiment of the present invention;

Fig. 3 is one of the schematic diagrams of the pixel unit arrangement structure provided by the embodiment of the present invention;

Fig. 4 is the second schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

Fig. 5 is the third schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

FIG. 6 is the fourth schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

Fig. 7 is the fifth schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

FIG. 8 is the sixth schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

Fig. 9 is the seventh schematic diagram of the pixel unit arrangement structure provided by the embodiment of the present invention;

FIG. 10 is one of the schematic diagrams of the driving structure of the organic light emitting display panel provided by the embodiment of the present invention;

FIG. 11 is the second schematic diagram of the driving structure of the organic light emitting display panel provided by the embodiment of the present invention;

FIG. 12 is the third schematic diagram of the driving structure of the organic light emitting display panel provided by the embodiment of the present invention;

FIG. 13 is the second structural schematic diagram of the display device provided by the embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a pixel circuit provided by an embodiment of the present invention.

Detailed ways

In view of the problems existing in the prior art, an embodiment of the present invention provides a display device and a display method thereof, so as to further increase the screen-to-body ratio of the display screen.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all described by taking the accompanying drawings as an example, but changes can also be made according to needs, and all changes are included in the protection scope of the present invention. The drawings of the present invention are only used to illustrate the relative positional relationship and do not represent the true scale.

It should be noted that in the following description, specific details are set forth in order to fully understand the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below. The subsequent description of the specification is a preferred implementation mode for implementing the application, but the description is for the purpose of illustrating the general principle of the application, and is not intended to limit the scope of the application. The scope of protection of the present application should be defined by the appended claims.

The display device and the display method thereof provided by the embodiments of the present invention will be specifically described below with reference to the accompanying drawings. Wherein, the size and shape of each component in the drawings do not reflect the actual scale of the display device, and are only intended to schematically illustrate the content of the present invention.

As shown in FIG. 1 , 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 The element 200 and the indicator light 300 are located on the side away from the light-emitting surface of the first display area 11 .

Wherein, both the first display area 11 and the second display area 12 include: a plurality of pixel units, and each pixel unit includes a plurality of sub-pixels. In order to distinguish and illustrate, the multiple pixel units included in the first display area 11 are represented as pixel units P11, and the multiple pixel units included in the second display area are represented as pixel units P12; the pixel units included in each pixel unit P11 in the first display area The sub-pixels are denoted as sub-pixels 111 , and the sub-pixels included in each pixel unit P12 in the second display area are denoted as sub-pixels 121 .

As shown in FIG. 1 , 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 within a unit area, so as to increase the area of the light-transmitting region of the first display area 11 .

It should be noted that the occupied area of a sub-pixel refers to the area value of all sub-pixels occupying the unit area within a unit area (1 cm ² or 1 mm ² , etc.). For example, if a unit area (1 mm ² ) contains three sub-pixels with the same size, and each sub-pixel has an area of 10 μm ² , then the occupied area of the three sub-pixels in the unit area is 30 μm ² .

It can be understood that organic light emitting diode devices are used as light-emitting sub-pixels in the organic light-emitting display panel, and sub-pixels of different colors constitute pixel units 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 electrodes and signal traces of organic light-emitting diode devices are made of opaque materials, and these opaque parts are all Concentrated in the organic light emitting diode device and its surrounding area, the interval area of the organic light emitting diode device, that is, the non-pixel arrangement area is mostly transparent. In the above 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 smaller than the occupied area of each sub-pixel included in the second display area 12 within the same unit area. Therefore, the occupied area of the non-pixel arrangement area in the first display area 11 can be increased, so that the first display area 11 has a larger area of light-transmitting area than the second display area 12, thereby obtaining With higher light transmittance, the external ambient light can pass through the non-pixel arrangement area of the first display area 11 to reach the inside of the display panel. Further, in the above-mentioned display device provided by the embodiment of the present invention, components such as the photosensitive element and the indicator light are arranged on the side away from the light-emitting surface of the first display area 11. As shown in FIG. 1 , the photosensitive element 200 and the indicator light 300 can be arranged Compared with the back of the organic light emitting display panel 100, the first display area 11 has a relatively large area of the light-transmitting area of the first display area 11, so that the photosensitive element 200 can fully receive ambient light through the first display area 11, play a photosensitive role; the light emitted by the indicator light 300 can also be effectively emitted outward through the first display area 11, so that it is no longer necessary to reserve components such as the photosensitive element 200 and the indicator light 300 when manufacturing the organic light-emitting display panel 100 position, but reasonably adjust 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 located on the back of the organic light emitting display panel , realizing full-screen display of the organic light-emitting display panel, and further improving the screen-to-body ratio of the display screen.

In a specific implementation, the distribution manner of the first display area 11 and the second display area of the organic light emitting display panel can be referred to in FIG. 2 . Wherein, the first display area 11 can be located at the top of the display panel, and is used to display simple information such as time, weather, operators, and electricity consumption. The back of the organic light emitting display panel 100 . The second display area 12 can be a high-resolution display area for image display, and the pixel arrangement of the second display area 12 can be any pixel arrangement in the prior art, and its resolution can also reach any of the prior art. A resolution of a display panel is not limited here. The photosensitive element 200 mentioned above can be one or more of a camera, a face recognition device and a light intensity sensor. In addition, other components with photosensitive functions may also be included, which is not limited here.

In order to improve the light transmittance of the first display area 11 of the organic light-emitting display panel, the embodiment of the present invention provides the following several pixel arrangement modes, the following implementation modes are all examples, not all implementation modes of the present invention, based on the principles of the present invention Other modifications based on the inventive concept all belong to the protection scope of the present invention.

In a practicable manner, the pixel arrangement structure of the organic light-emitting display panel provided by the embodiment of the present invention is shown in FIG. d1 is equal to the spacing d2 between the sub-pixels 121 in each pixel unit P12 in the second display area 12; while the spacing between adjacent pixel units P11 in the first display area 11 is greater than that of adjacent pixels in the second display area Spacing between cells P12.

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

A pixel unit can be regarded as a light-emitting unit of the display screen. In the above-mentioned pixel arrangement structure, the pitch of the 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 luminous effects of each pixel unit as a luminous unit are basically the same, so the overall display effects of the first display area 11 and the second display area 12 are similar. At the same time, the increased spacing between adjacent pixel units P11 in the first display region 11 can increase the area of the light-transmitting region of the first display region 11, thereby making it more beneficial to be located behind the first display region 11. The photosensitive element 200 can be sensitive to light, and can realize the full screen display of the organic light emitting display panel 100, further increasing the screen ratio of the display screen.

In addition to the pixel arrangement structure shown in FIG. 3 , the pixel arrangement structure shown in FIG. 4 can also be used in specific implementation. The spacing between the sub-pixels 111 in each pixel unit P11 of the first display area 11 d1 is equal to the spacing d2 between the sub-pixels 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 that of the second display area The spacing w2 between adjacent pixel units P12 in 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 .

Increasing the distance between adjacent pixel units P11 in the first display region 11 in both the row direction and the column direction can further increase the area of the light-transmitting region of the first display region 11 , which is beneficial to the light-sensing of the photosensitive element 200 .

In addition, during specific implementation, the pixel arrangement structure as shown in FIG. 5 can also be adopted. As shown in FIG. The numbers 121 are equal; the size of the sub-pixels 111 in the first display area 11 is smaller than the size of the sub-pixels 121 in the second display area 12 .

As shown in FIG. 5, the spacing d1 between the sub-pixels 111 in each pixel unit P11 of the first display area 11 is equal to the spacing between the sub-pixels 121 in each pixel unit P12 of the second display area 12, By reducing the size of each sub-pixel in the first display area 11 , the distance h1 between adjacent pixel units in the first display 11 is increased. It can be seen from FIG. 5 that the first display area 11 and the second display area 12 have the same number of pixel units (and sub-pixels) per unit area, so the first display area 11 and the second display area 12 have the same PPI (Pixel Per Inch), using this pixel arrangement structure can increase the area of the light-transmitting area of the first display area 11 without reducing the PPI of the display panel, and can make the photosensitive element behind the first display area 11 200 has a better photosensitive effect, and at the same time can ensure that the first display area 11 has a better display effect.

In another implementable manner, the pixel arrangement structure of the organic light-emitting display panel provided by the embodiment of the present invention is shown in FIG. The distances between adjacent pixel units P12 in the region 12 are equal; the distance d1 between the sub-pixels 111 in each pixel unit P11 of the first display region 11 is greater than that of each pixel 121 in each pixel unit P12 of the second display region 12 The spacing d2 between.

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

Under 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 the sub-pixels 111 within the pixel unit in the first display area 11 can be done in the following two ways Realization: First, without increasing the size of the pixel unit, reduce the size of each sub-pixel to obtain a larger spacing between the sub-pixels, thereby improving the light transmittance of the first display area 11; second, On the premise of not reducing the size of the sub-pixels, the size of the pixel unit is increased so that the distance between the sub-pixels is larger, thereby increasing the area of the light-transmitting region of the first display region 11 .

In practical applications, the high PPI display panel minimizes the distance between the pixel units and the sub-pixels inside the pixel unit in order to obtain more pixel units per unit area, which will also cause such The light transmittance of the display area is low. When the above-mentioned first pixel arrangement structure is adopted, the PPI of the first display area 11 will not be reduced, and at the same time, the area of the light-transmitting area of the first display area 11 can be increased; For displays with higher PPI, the manufacturing process is more difficult. When the above-mentioned 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 arranged, and this part of the display area is usually used to display relatively simple images, the requirements for PPI Not high. The higher light transmittance of the first display area 11 is obtained by lowering the PPI of the first display area 11 , so as to meet the light-sensing requirements of the photosensitive element, and simultaneously achieve a higher screen-to-body ratio of the display screen. Moreover, the size of the sub-pixels in the first display area 11 and the second display area 12 are the same, which does not cause the problem of increased difficulty in manufacturing the sub-pixels.

For example, as shown in FIG. 6 and FIG. 7, there are two kinds of PPI pixel arrangement structures in the first display area 11, wherein the size of the sub-pixels 111 in the first display area 11 is the same as that of the sub-pixels in the second display area 12. 121 are equal in size; and the number of sub-pixels 111 included in the first display area 11 per unit area is smaller than the number of sub-pixels 121 included in the second display area 12 . The PPI of the first display area 11 shown in FIG. 7 is higher than the PPI of the first display area 11 shown in FIG. 6, and the light transmittance of the first display area 11 shown in FIG. Transmittance of the display area 11. As shown in Figure 6, 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 2 times the size of the pixel unit in the second display area 12. times. As shown in Figure 7, the colors of the sub-pixel columns in the column direction of the first display area 11 and the second display area 12 are not exactly the same, but the size of the pixel unit in the first display area 11 is equal to that of the pixel unit in the second display area 12. 1.8 times the size. During specific implementation, the pixel arrangement manner may be selected according to actual conditions, which is not limited here.

In another implementable manner, the pixel arrangement structure of the organic light-emitting display panel provided by the embodiment of the present invention is shown in FIG. The distance between adjacent pixel units P12 within 12; the distance d1 between each sub-pixel 111 in each pixel unit P11 of the first display area 11 is greater than the distance d1 between each pixel 121 in each pixel unit P12 of the second display area 12 The distance d2 between.

Likewise, the distance between adjacent pixel units can be the distance between adjacent pixel units along the row direction, or the distance between adjacent pixel units along the column direction. Taking the pixel structure shown in FIG. 8 as an example, the distance w1 between adjacent pixel units P11 in the first display area 11 along the row direction is greater than the distance w2 between adjacent pixel units P12 in the second display area 12, and at the same time The distance h1 between adjacent pixel units P11 in the first display area 11 in the column direction is greater than the distance h2 between adjacent pixel units P12 in the second display area 12 . Taking the pixel structure shown in FIG. 9 as an example, the distance w1 between adjacent pixel units P11 in the first display area 11 along the row direction is equal to the distance w2 between adjacent pixel units P12 in the second display area 12, and The distance h1 between adjacent pixel units P11 in the first display area 11 along the column direction is greater than the distance h2 between adjacent pixel units P12 in the second display area 12 . During specific implementation, the area of the light-transmitting region of the first display area may also be increased by increasing the distance between adjacent pixel units along the row direction, which is not limited here.

By adopting the above-mentioned pixel arrangement method and increasing the distance between the pixel units in the first display area 11 and between the sub-pixels in the pixel units, the area of the light-transmitting area of the first display area 11 can be increased to the greatest extent, thereby improving The light transmittance of the first display area 11, the higher the light transmittance of the first display area 11, the better the photosensitive condition of the photosensitive element 200 behind the first display area 11, which is beneficial to improve the photosensitive quality of the photosensitive element 200.

Further, as shown in FIG. 8 and FIG. 9, in this embodiment, the number of sub-pixels 111 included in the first display area 11 per unit area is smaller than the number of sub-pixels 121 included in the second display area 12; the first display The size of the sub-pixels 111 in the region is smaller than the size of the sub-pixels 121 in the second display region. By reducing the size of the sub-pixels in the first display area 11 , a greater distance between adjacent pixel units can be obtained along the column direction, thereby greatly improving the light transmittance of the first display area 11 . Compared with the pixel structure shown in FIG. 9, the pixel structure shown in FIG. 8 can obtain higher light transmittance in the first display area 11, but the pixel structure shown in FIG. The pixel structure has a relatively high PPI, so in practical applications, the light transmittance and pixel resolution can be comprehensively considered to select an appropriate pixel arrangement, which is not limited here.

The light transmittance of the first display area 11 will be specifically described with the three pixel arrangement structures shown in FIG. 5 , FIG. 6 and FIG. 8 . When adopting the pixel arrangement structure shown in Figure 5, 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 the distance between adjacent pixel units Under equal circumstances, the light transmittance of the first display area 11 can be increased to 75%; when the pixel arrangement structure shown in FIG. 6 is adopted, the PPI of the first display area 11 is 1/1 of the PPI of the second display area 12 3. Thus, the light transmittance of the first display area 11 can be increased to 76%; when the pixel arrangement structure shown in FIG. 8 is adopted, 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-pixels 111 in the first display area 11 is 1/4 of the size of the sub-pixels 121 in the second display area 12, thus the light transmittance of the first display area 11 can be increased to 92%. In practical applications, the size of the sub-pixel and the display PPI are in a mutually restrictive relationship with the display effect. The smaller the size of the sub-pixel and the lower the display PPI, the lower the display resolution of the area and the worse the display effect; The size of sub-pixels and the reduction of display PPI are also beneficial to improve the light transmittance of this area. The higher the light transmittance, the better the light-sensing conditions of the photosensitive elements behind this area. Therefore, in practical applications, it is necessary to comprehensively consider the display effect and transmittance. Luminosity is two factors to set the appropriate pixel size and display PPI. The present invention is verified by experiments of various pixel arrangement structures in Fig. 3-Fig. In the range of 2, better light transmittance of the first display area 11 can be obtained, and at the same time, the display effect level meets the actual use requirements. However, with the advancement of technology, manufacturing organic light emitting diode devices with higher luminous brightness or implementing finer processing technology so that the sub-pixel size exceeds the above range also falls within the protection scope of the present invention, which is not specifically limited here.

Since the pixel arrangement structures of the first display area and the second display area are different, various driving methods for the two display areas can be adopted correspondingly. For example, in the pixel arrangement structure shown in Figure 3, Figure 5, Figure 6 and Figure 8, the sub-pixels of the same color in the first display area 11 and the second display area 12 are arranged in multiple columns, and the sub-pixels in the first display area 11 Each row of sub-pixels is aligned with the corresponding row of sub-pixels of the same color in the second display area 12 .

Regarding the above-mentioned pixel arrangement structure, as shown in FIG. 10 and FIG. 11 , the organic light-emitting display panel 100 further includes: a plurality of data signal lines 13 extending along the direction of sub-pixel columns; The number of sub-pixels 121 included in each sub-pixel row is equal; the sub-pixels in the first display area 11 and the sub-pixels in the second display area 12 in the same column share the same data signal line; and the data signal lines 13 of each data signal line equal in length. In the embodiment of the present invention, the 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 provide data signal lines for the first display area 11 and the second display area 12 respectively. This can reduce the area of the display area occupied by the data signal lines. In order to improve light transmittance in the first display area 11, there may be a situation in which the first display area 11 includes sub-pixel columns that are less than the second display area. ), and at this time, each data signal line 13 is still kept to have the same length, which can reduce the load difference between the data signal lines caused by the unequal number of sub-pixels connected by the data signal lines to a certain extent, and is conducive to improving the display effect .

For the pixel arrangement of the organic light-emitting display panel as shown in FIG. 4, FIG. 7 and FIG. The sub-pixel columns of the same color in the second display area 12 are not aligned with each other, and the corresponding sub-pixel columns can still use the same data signal line at this time. For example, as shown in Figure 4, the data signal line can be deformed at the junction of 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; 7 and 9, the sub-pixels located in the same column can share the same data signal line, and the output data signal can be converted correspondingly at the driving chip end during driving.

In addition, as shown in FIG. 10 and FIG. 11 , the organic light-emitting display panel 100 also includes: a gate drive circuit 14 located on the side of the display panel and a drive chip 15 (driver IC) located at the bottom of the display panel, driven by the gate The circuit 14 cooperates with the driving chip 15 to time-divisionally output data signals to each row of sub-pixels, so as to realize the driving display of the organic light-emitting display panel. Fig. 10 and Fig. 11 show that the first display area 11 and the second display area 12 adopt the driving mode of the same gate drive circuit. In practical applications, the first display area 11 and the second display area 12 can also adopt mutually independent Two sets of gate drive circuits are used for driving. Referring to 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 through a gate line. drive circuit 142 . The first display area 11 and the second display area 12 are respectively provided with corresponding gate driving circuits, so that different images or images with different resolutions can be displayed on the same display device. The driving frequency 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 electricity, and the change of the displayed image is small, so a low-frequency drive can be used. As for the second display area 12, it is used to display high-resolution image quality, so high-frequency driving can be used to display images with higher image quality requirements.

In practical applications, as shown in FIG. 13 , the above display device provided by the embodiment of the present invention further includes: a protective cover 400 located on the side of the organic light-emitting display panel 100 away from the photosensitive element 200 and the indicator light 300 , located in the second display area 12 the main board 500 and the battery 600 on the side away from the protective cover 100 , and the protective rear case 700 on the side of the main board 500 away from the organic light emitting display panel 100 . Wherein, 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 motherboard 500 and the battery 600 may be provided on the protective rear case 700 . The protective cover 400 may be a glass cover or the like.

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, an embodiment of the present invention also provides a display method based on any of the above display devices, specifically Can include the following two aspects:

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 It may be smaller than the display PPI of the second display area 12, so when the first display area 11 and the second display area 13 are simultaneously displayed, in order to ensure the uniformity of the display brightness of the first display area 11 and the second display area 12, it is necessary to The driving signal of a display area 11 is adjusted accordingly. For example, when the first display area 11 and the second display area 12 adopt the circuit structure shown in FIG. 10 or FIG. The overall display brightness of the second display area 12 is consistent with the overall display brightness; and if the first display area 11 and the second display area 12 adopt the circuit structure as shown in Figure 12, since the two display areas are driven separately, so for The first display area 11 may extend the luminescence time of the first display area 11 in the same period by increasing the duty cycle of the luminescence control signal, so that the overall display brightness of the first display area 11 and the second display area 12 are consistent.

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

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

Further, the pixel circuit further includes: an emission control thin film transistor M5; the gate of the emission control thin film transistor M5 is connected to the emission 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 a conducting state under the control of the light emitting control line EMIT, the drain of the driving thin film transistor M4 is connected to the organic light emitting diode OLED. That is, when the light emission control thin film transistor M5 is in the conduction state under the control of the light emission control line EMIT, a path is formed between the power voltage signal line PVDD and another power voltage signal line PVEE, and the magnitude of the current in the circuit determines the brightness of the OLED display . Thus, in the first display region 11 , the driving current of the sub-pixel can be adjusted by controlling the data signal of each sub-pixel so as to achieve the purpose of adjusting the luminance of the sub-pixel.

The display device and display method thereof provided by the present invention, the display device 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 is located on the 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; The occupied area of the sub-pixels in the first display area 11 is smaller than the occupied area of the sub-pixels in the second display area 12 . By reducing the occupied area of the sub-pixels in the first display area 11, the area of the light-transmitting area of the first display area 11 is increased, so that the photosensitive element 200 located on the backlight side of the first display area 11 can pass through the first display area 11 Sufficiently receive ambient light and play a photosensitive function; the light emitted by the indicator light 300 can also be effectively emitted outward through the first display area 11, so that it is no longer necessary to install the photosensitive element 200 and the indicator light when the organic light-emitting display panel 100 is manufactured. 300 and other components reserve positions to realize full-screen display of the organic light-emitting display panel 100 and further increase the screen-to-body ratio of the display screen.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

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 equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (12)

1. A display device, comprising: the display device comprises an organic light-emitting display panel, a photosensitive element and an indicator light; the organic light-emitting display panel comprises a first display area and a second display area, and the photosensitive element and the indicator lamp are positioned on one side departing from a light-emitting surface of the first display area; wherein,

the first display area and the second display area each include: a plurality of pixel units; each pixel unit comprises a plurality of sub-pixels; the occupation area of the sub-pixels of the first display region is smaller than that of the sub-pixels of the second display region in a unit area to increase the area of the light transmission region of the first display region.

2. The display device according to claim 1, wherein a pitch between sub-pixels in each pixel unit in the first display region is equal to a pitch between sub-pixels in each pixel unit in the second display region;

the distance between adjacent pixel units in the first display area is larger than that between adjacent pixel units in the second display area.

3. The display device according to claim 2, wherein the first display region includes the same number of sub-pixels as the second display region per unit area;

the size of the sub-pixels in the first display area is smaller than that of the sub-pixels in the second display area.

4. The display device according to claim 1, wherein a pitch between adjacent pixel cells in the first display region is equal to a pitch between adjacent pixel cells in the second display region;

the distance between sub-pixels in each pixel unit of the first display area is larger than the distance between pixels in each pixel unit of the second display area.

5. The display device according to claim 4, wherein the size of the sub-pixels in the first display area is equal to the size of the sub-pixels in the second display area;

the number of sub-pixels included in the first display area in a unit area is smaller than the number of sub-pixels included in the second display area.

6. The display device of claim 1, wherein a pitch between adjacent pixel cells in the first display region is greater than a pitch between adjacent pixel cells in the second display region;

the distance between sub-pixels in each pixel unit of the first display area is larger than the distance between pixels in each pixel unit of the second display area.

7. The display device according to claim 6, wherein the first display region includes a smaller number of sub-pixels per unit area than the second display region;

the size of the sub-pixels in the first display area is smaller than that of the sub-pixels in the second display area.

8. A display device as claimed in claim 3 or 6, wherein the size of the sub-pixels in the first display region is 1/4-1/2 of the size of the sub-pixels in the second display region.

9. The display device according to claim 1, wherein the same color sub-pixels in the first display region and the second display region are arranged in a plurality of columns, and each column of sub-pixels in the first display region is aligned with a corresponding column of same color sub-pixels in the second display region;

the organic light emitting display panel further includes: a plurality of data signal lines extending in the subpixel column direction; the number of the data signal lines is equal to the number of the sub-pixels contained 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; the lengths of the data signal lines are equal.

10. The display device of claim 1, wherein the light sensing element comprises one or more of a camera, a facial recognizer, and a light intensity sensor.

11. The display device of claim 1, wherein the display device further comprises: and the protection rear shell is positioned on one side of the organic light-emitting display panel, deviates from the protection cover plate on one side of the photosensitive element, is positioned in the second display area, deviates from the main board and the battery on one side of the protection cover plate, and is positioned in the main board, and deviates from the protection rear shell on one side of the organic light-emitting display panel.

12. A display method based on the display device according to any one of claims 1 to 11, comprising:

when the first display area and the second display area are displayed simultaneously, increasing the driving current of each pixel unit in the first display area so as to enable the whole display brightness of the first display area to be consistent with the whole display brightness of the second display area;

and when the photosensitive element is in a working state, controlling each pixel unit in the first display area to be in a dark state.