Patent Description:
With rapid development of electronic devices, users are requiring to have higher and higher screen-to-body ratios, so that the industry has shown more and more interest in all-screen displays of electronic devices.

There is a need for electronic devices, such as mobile phones and tablets, to have front-facing cameras, earpieces, and infrared sensing components etc. integrated thereon. In the prior art, notches or holes may be provided on display screens, so that external light can enter photosensitive components under the screens through the notches or holes on the screens. However, all such display screens are not actual all-screen displays, since not all regions across the screens can be used to display, for example, regions corresponding to front-facing cameras cannot be used to display pictures.

<CIT> discloses a method and apparatus for determining parameters of a transparent Organic Light Emitting Diode (OLED). The method includes obtaining working wave bands, initial optical parameters and initial structural parameters of each layer of materials of the OLED; establishing a geometric optical model of the OLED; calculating equivalent phase distribution of a transmittance function of the OLED; determining relative phase changes of the transmittance function at different working wavelengths; adjusting the initial optical parameters and the initial structural parameters, so that a relative phase change value is minimized under irradiation of central wavelengths corresponding to the working wave bands; calculating light intensity distribution of a Fraunhofer diffraction field of the OLED under irradiation of a working wavelength in the working wave bands; integrating zero-stage diffraction light intensity in the light intensity distribution of the Fraunhofer diffraction field to determine total zero-stage diffraction light intensity; and taking corresponding optical parameters and structural parameters under a condition that a value of the total zero-stage diffraction light intensity is maximum as target parameters.

<CIT>relates to a display panel and a display device. The display panel includes dummy sub-pixels which are located between a first pixel unit and a first boundary, and a color of the dummy sub-pixels is the same as that of second sub-pixels in a second pixel unit adjacent to a second boundary, whereby colors displayed along the boundaries on the same side of the display panel are consistent, thereby eliminating the color cast of the boundaries due to the two-color contrast and improving the display effect.

Other features, objects and advantages of the present application will be apparent, after reading the detailed description of non-limiting embodiments which is described with reference to the accompanying drawings, where the same or similar reference signs indicate the same or similar features. The drawings are not necessarily drawn to the actual scale.

Features and exemplary embodiments of various aspects of the present application will be described in detailed below. In order to make the objects, technical solutions and advantages of the present application clearer, the present application is further described in details below with reference to the accompany drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for illustration of the present application, and are not for limiting the present application. For those skilled in the art, the present application can be implemented without some of those specific details. The below description of embodiments is only for providing better understanding of the present application by showing examples of the present application.

In an electronic device, such as a mobile phone and a tablet etc., there is a need to integrate photosensitive components (e.g., front-facing cameras, infrared light sensors, and proximity light sensors) on the side where a display panels is provided. In some embodiments, a light-transmitting display area may be provided on the above-described electronic device, and the photosensitive components may be arranged on the back of the light-transmitting display area, so that all-screen display for the electronic device can be realized, while proper operations of the photosensitive components can be guaranteed.

At present, there is still a serious diffraction phenomenon in a light-transmitting display region of a display panel, which affects a photosensitive quality of an under-screen photosensitive component.

In order to solve the above problem, embodiments of the present application provide a method and apparatus for optimizing a pixel arrangement, a light-transmitting display panel, and a display panel. Embodiments of the method and apparatus for optimizing the pixel arrangement, the light-transmitting display panel, and the display panel will be illustrated in details below in conjunction with the accompanying drawings.

<FIG> shows a schematic flowchart of a method for optimizing a pixel arrangement according to an embodiment of the present application. As shown in <FIG>, the method for optimizing the pixel arrangement includes Step <NUM> and Step <NUM>.

In Step <NUM>, an initial pixel arrangement structure model is constructed. A first electrode of each sub-pixel in the initial pixel arrangement structure model has an initial graphic parameter and an initial position parameter.

In some embodiments, any pixel arrangement structure may be selected, and the initial graphic parameter and the initial position parameter may be set for the first electrode of each sub-pixel in the pixel arrangement structure, and in turn, the initial pixel arrangement structure model may be constructed in a simulation software.

In some other embodiments, a pixel arrangement structure of a target light-transmitting display panel and a graphic parameter and a position parameter of a first electrode of each sub-pixel of the target light-transmitting display panel may be obtained; the initial pixel arrangement structure model may be constructed according to the pixel arrangement structure and the graphic parameter and the position parameter of the first electrode of each sub-pixel of the target light-transmitting display panel. The target light-transmitting display panel may be an actual light-transmitting display panel produced according to a predetermined process, the graphic parameter and position parameter of the first electrode of each sub-pixel of the target light-transmitting display panel may be imported into a simulation software, and a digital model of the target light-transmitting display panel may be constructed using the simulation software. The simulation software may be, for example, comsol, fdtd, rsoft and so forth. The target light-transmitting display panel may include first electrode and may also include an array substrate, various wiring structures, light-emitting structures, and second electrodes, etc. The constructed initial pixel arrangement structure model may include respective film layer parameters of the target light-transmitting display panel.

As compared with producing target light-transmitting display panels under various parameters practically to obtain optimized parameters, costs can be saved and the efficiency can be improved, by constructing the initial pixel arrangement structure model of the target light-transmitting display panel and then obtaining the optimized parameters corresponding to the target light-transmitting display panel using the initial pixel arrangement structure model.

In Step <NUM>, at least one of initial graphic parameters and initial position parameters of at least a part of first electrodes in the initial pixel arrangement structure model is adjusted, to obtain an optimized pixel arrangement structure model. A ratio of zero-order diffraction spot energy of the optimized pixel arrangement structure model to light transmission energy of the optimized pixel arrangement structure model is greater than or equal to <NUM>%.

Exemplarily, the greater the ratio of the zero-order diffraction spot energy of the optimized pixel arrangement structure model to the light transmission energy of the optimized pixel arrangement structure model, the more the mitigation of the diffraction effect of the display panel adopting the optimized pixel arrangement structure, and thus the more the improvement of the photosensitive quality of the photosensitive component positioned on the non-light emitting side of the display panel.

In some embodiments, Step <NUM> may specifically include:.

Irradiation wavelengths may range from <NUM> nanometers to <NUM> nanometers. A field of view may be a field of photographic view of an under-screen photosensitive component, such as a field of view of a camera. A virtual object model may be constructed, and various distances between the virtual object model and the initial pixel arrangement structure model may be set. The light transmission energy is energy of light that can transmit through the pixel arrangement structure model.

Exemplarily, it is determined firstly whether the ratio of the zero-order diffraction spot energy of the initial pixel arrangement structure model to the light transmission energy of the initial pixel arrangement structure model is greater than or equal to <NUM>% or not under the conditions of different irradiation wavelengths, fields of view, and object distances; if the initial pixel arrangement structure model meets the above condition, the initial graphic parameters and the initial position parameters of the first electrodes of the initial pixel arrangement structure model are the optimal parameters; if the initial pixel arrangement structure model does not meet the above condition, at least one of the initial graphic parameters and the initial position parameters of the first electrodes in the initial pixel arrangement structure model is adjusted continuously, and it is determined whether the adjusted pixel arrangement structure model meets the above condition or not after each adjustment, until an optimized pixel arrangement structure model is obtained.

According to the embodiments of the present application, the ratio of the zero-order diffraction spot energy to the light transmission energy for the finally obtained and optimized pixel arrangement structure model is greater than or equal to <NUM>% under the conditions of different irradiation wavelengths, fields of view, and object distances, so as to obtain the graphic parameters and the position parameters of the first electrodes that can mitigate the diffraction phenomenon under various conditions.

In some embodiments, after Step <NUM>, the method may further include setting a graphic parameter and a position parameter for each first electrode in the target light-transmitting display panel, according to a corresponding graphic parameter and position parameter of a corresponding first electrode in the optimized pixel arrangement structure model.

After obtaining the optimized graphic parameters and position parameters of the first electrodes, an actual target light-transmitting display panel may be produced according to the optimized graphic parameters and position parameters of the first electrodes, so that the ratio of the zero-order diffraction spot energy to the light transmission energy of the target light-transmitting display panel is greater than or equal to <NUM>%. A proportion of the zero-order diffraction spot energy can be increased and a proportion of non-zero-order diffraction spot energy can be decreased. Therefore, the diffraction phenomenon of the target light-transmitting display panel can be mitigated, and a photosensitive quality of a photosensitive component integrated on the non-light-emitting side of the target light-transmitting display panel can be improved.

In the above embodiments, the initial graphic parameters may be shape parameters and size parameters of the first electrodes, and the initial position parameters may be coordinate parameters of the first electrodes or relative position parameters between the first electrodes.

In addition, the inventors found that periodically arranged anodes in the display panel have a greater impact on the diffraction of the light-transmitting area. By adjusting a shape, size and arrangement of an anode corresponding to each sub-pixel, the energy of the non-zero-order diffraction spot can be decreased, and the energy of the zero-order diffraction spot can be increased, so that more energy is concentrated on a geometric image point to mitigate the diffraction effect and improve an imaging quality of an under-screen camera. Therefore, in the above embodiments, a first electrode may be an anode.

So far, according to the method for optimizing the pixel arrangement of the embodiment of the present application, a ratio of zero-order diffraction spot energy of the obtained and optimized pixel arrangement structure model to light transmission energy of the optimized pixel arrangement structure model is enabled to be greater than or equal to <NUM>% (i.e., a proportion of the zero-order diffraction spot energy is increased and a proportion of non-zero-order diffraction spot energy is decreased), by constructing an initial pixel arrangement structure model and adjusting at least one of initial graphic parameters and initial position parameters of first electrodes of at least a part of sub-pixels in the initial pixel arrangement structure model, so as to obtain graphic parameters and position parameters of the first electrodes that can mitigate the diffraction phenomenon.

<FIG> shows a schematic structural diagram of an apparatus for optimizing a pixel arrangement according to an embodiment of the present application. As shown in <FIG>, the apparatus for optimizing the pixel arrangement provided by the embodiment of the present application includes following modules.

A model construction module <NUM> is configured to construct an initial pixel arrangement structure model. First electrodes of respective sub-pixels in the initial pixel arrangement structure model form an initial first electrode matrix jointly. Each of the first electrodes has an initial graphic parameter and an initial position parameter.

A parameter adjustment module <NUM> is configured to adjust at least one of initial graphic parameters and initial position parameters of at least a part of first electrodes in the initial pixel arrangement structure model to obtain an optimized pixel arrangement structure model. A ratio of zero-order diffraction spot energy of the optimized pixel arrangement structure model to light transmission energy of the optimized pixel arrangement structure model is greater than or equal to <NUM>%.

In some embodiments, the structure for optimizing the pixel arrangement may further include a parameter setting module, configured to set a graphic parameter and a position parameter for each first electrode in a target light-transmitting display panel, according to a corresponding graphic parameter and position parameter of a corresponding first electrode in the optimized pixel arrangement structure model.

In some embodiments, the model construction module <NUM> is specifically configured to:.

In some embodiments, the parameter adjustment module <NUM> is specifically configured to:.

According to the apparatus for optimizing the pixel arrangement of the embodiment of the present application, a ratio of zero-order diffraction spot energy of the obtained and optimized pixel arrangement structure model to light transmission energy of the optimized pixel arrangement structure model is enabled to be greater than or equal to <NUM>% (i.e., a proportion of the zero-order diffraction spot energy is increased and a proportion of non-zero-order diffraction spot energy is decreased), by constructing an initial pixel arrangement structure model and adjusting at least one of initial graphic parameters and initial position parameters of first electrodes of at least a part of sub-pixels in the initial pixel arrangement structure model, so as to obtain graphic parameters and position parameters of the first electrodes that can mitigate the diffraction phenomenon.

<FIG> shows a schematic structural diagram of a light-transmitting display panel according to an embodiment of the present application. <FIG> show partial enlarged views of the Q region in <FIG>. In order to show a structure of the first electrode clearly, other structures of a light-transmitting display panel <NUM> are not drawn explicitly in <FIG>.

As shown in <FIG> and <FIG> to <FIG>, the light-transmitting display panel <NUM> includes an array substrate <NUM> and a light-emitting layer <NUM>. The light emitting layer <NUM> is positioned on the array substrate <NUM>. The light-emitting layer <NUM> includes a plurality of repeated units <NUM>. A plurality of first electrodes of a plurality of sub-pixels in the repeated units <NUM> are arranged in a pattern. A combination of graphic parameters and position parameters of the first electrodes arranged in the pattern enables zero-order diffraction spot energy of the light-transmitting display panel <NUM> and light transmission energy of the light-transmitting display panel to satisfy a relationship expression (<NUM>): <MAT>.

In the expression (<NUM>), I<NUM> represents the zero-order diffraction spot energy of the light-transmitting display panel, and I x represents the light transmission energy of the light-transmitting display panel.

The light-transmitting display panel <NUM> may be an Organic Light Emitting Diode (OLED) display panel.

In some embodiments, the array substrate <NUM> may include pixel circuits, wiring structures, and so on. In order to improve the light transmittance of the light-transmitting display panel <NUM>, the pixel circuits in the array substrate <NUM> may be arranged as exactly under respective sub-pixels as possible, and the wiring structures may be arranged deviously so as to occupy areas between the sub-pixels as less as possible. A luminescent material of a sub-pixel is vapor-deposited on an anode with low light transmittance, and a cathode of the sub-pixel is formed of a whole layer of material. Further, the inventors found that anodes periodically arranged in the display panel have a greater impact on the diffraction of the light-transmitting area. By configuring a shape, size and arrangement of an anode corresponding to each sub-pixel, the energy of the non-zero-order diffraction spot can be decreased, and the energy of the zero-order diffraction spot can be increased, so that more energy is concentrated on a geometric image point to mitigate the diffraction effect and improve an imaging quality of an under-screen camera. Therefore, a first electrode may be an anode of a sub-pixel.

Exemplarily, the graphic parameters and position parameters of the respective first electrodes in the light-transmitting display panel may be the optimized parameters obtained according to the above-mentioned method for optimizing the pixel arrangement.

According to the light-transmitting display panel of the embodiment of the present application, a combination of the graphic parameters and the position parameters of the first electrodes in the light-transmitting display panel enables a ratio of zero-order diffraction spot energy of the light-transmitting display panel to light transmission energy of the light-transmitting display panel to be greater than or equal to <NUM>%, i.e., a proportion of the zero-order diffraction spot energy is increased and a proportion of non-zero-order diffraction spot energy is decreased. Therefore, the diffraction phenomenon of the light-transmitting display panel can be mitigated, and a photosensitive quality of a photosensitive component (for example, a camera) integrated under the screen can be improved.

In some embodiments, a sub-pixel of each color may include a first electrode, a light-emitting structure, and a second electrode that are stacked sequentially. One of the first electrode and the second electrode is an anode, and the other one is a cathode. In the embodiment, an example that the first electrode is the anode and the second electrode is the cathode is described for illustration.

The light-emitting structure may include an OLED light-emitting layer. According to a design requirement of the light-emitting structure, the OLED light-emitting layer may further include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer.

In some embodiments, the first electrode may include an Indium Tin Oxide (ITO) layer or an Indium Zinc Oxide layer. In some embodiments, the first electrode may be a reflective electrode, including a first light-transmitting conductive layer, a reflective layer on the first light-transmitting conductive layer, and a second light-transmitting conductive layer on the reflective layer. The first light-transmitting conductive layer and the second light-transmitting conductive layer may be the ITO layer, the Indium Zinc Oxide layer, etc., and the reflective layer may be a metal layer, for example, a layer made of silver.

In some embodiments, the second electrode may include a magnesium-silver alloy layer. In some embodiments, the second electrode may be interconnected as a common electrode.

In some embodiments, as further shown in <FIG>, each repeated unit <NUM> includes a first pixel group <NUM> and a second pixel group <NUM> distributed along a first direction X, the first pixel group <NUM> includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel distributed along a second direction Y, and the second pixel group <NUM> includes a third color sub-pixel, a first color sub-pixel, and a second color sub-pixel distributed along the second direction Y The first direction X intersects the second direction Y. An orthographic projection of a first electrode <NUM> of the first color sub-pixel and an orthographic projection of a first electrode <NUM> of the third color sub-pixel on the array substrate are circles, and an orthographic projection of a first electrode <NUM> of the second color sub-pixel on the array substrate is an ellipse. Further, a diameter of the first electrode <NUM> of the first color sub-pixel ranges from <NUM> micron (µm) to <NUM>, a diameter of the first electrode <NUM> of the third color sub-pixel ranges from <NUM> to <NUM>, a long axis of the first electrode <NUM> of the second color sub-pixel ranges from <NUM> to <NUM>, and a short axis of the first electrode <NUM> of the second color sub-pixel ranges from <NUM> to <NUM>.

Exemplarily, before optimization, orthographic projections of first electrodes of sub-pixels of the three colors of an original light-transmitting display panel on the array substrate are all ellipses. At this time, a proportion of energy of the non-zero-order diffraction spot of the light-transmitting display panel is relatively high, and the diffraction phenomenon is obvious. The present application optimizes configuration of the first electrodes of the original light-transmitting display panel, adjusts shapes and sizes of first electrodes of sub-pixels of some color(s), and further disrupts a periodic structure of the first electrodes, so that a proportion of energy of the zero-order diffraction spot of the light-transmitting display panel can be increased, and the diffraction phenomenon of the light-transmitting display panel can be mitigated.

In some embodiments, a coordinate of a central point O of each repeated unit <NUM> may be set firstly. Further, a distance from the first electrode <NUM> of the first color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from the first electrode <NUM> of the first color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>; a distance from a central point of the first electrode <NUM> of the second color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from a central point of the first electrode <NUM> of the second color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>; a distance from a central point of the first electrode <NUM> of the third color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from the central point of the first electrode <NUM> of the third color sub-pixel in the first pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>.

And/or, a distance from first electrode <NUM> of the first color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from first electrode <NUM> of the first color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>; a distance from a central point of the first electrode <NUM> of the second color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from a central point of the first electrode <NUM> of the second color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>; a distance from a central point of the first electrode <NUM> of the third color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the first direction X ranges from <NUM> to <NUM>, and a distance from a central point of the first electrode <NUM> of the third color sub-pixel in the second pixel group <NUM> to the central point O of the repeated unit <NUM> in the second direction Y ranges from <NUM> to <NUM>.

This arrangement further disrupts the periodic structure of the first electrodes, so that the proportion of energy of the zero-order diffraction spot of the light-transmitting display panel can be increased and the diffraction phenomenon of the light-transmitting display panel can be mitigated.

In some embodiments, as shown in <FIG>, each repeated unit <NUM> includes two pixel groups distributed along the second direction Y, i.e., a first pixel group <NUM> and a second pixel group <NUM>. Each pixel group includes one first color sub-pixel, one second color sub-pixel, and one third color sub-pixel. Central points of first electrodes of the three sub-pixels in each pixel group, when connected by lines, form a triangle. An arrangement structure of one of the pixel groups after being inverted by <NUM> degrees in the first direction X may be identical to an arrangement structure of the other one of the pixel groups in the repeated unit <NUM>. The first direction X intersects the second direction Y. An orthographic projection of the first electrode <NUM>, <NUM> or <NUM> of each sub-pixel on the array substrate is a circle. Further, a diameter of the first electrode <NUM> of the first color sub-pixel ranges from <NUM> to <NUM>, a diameter of the first electrode <NUM> of the second color sub-pixel ranges from <NUM> to <NUM>, and a diameter of the first electrode <NUM> of the third color sub-pixel ranges from <NUM> to <NUM>.

And/or, a distance between every two of the central points of first electrodes <NUM>, <NUM> and <NUM> of the sub-pixels of the three colors in each of the pixel groups is <NUM> to <NUM>, and/or the central points of first electrodes <NUM>, <NUM> and <NUM> of the sub-pixels of the three colors in each of the pixel groups, when connected by lines, form an isosceles triangle or an equilateral triangle.

Exemplarily, before optimization, orthographic projections of first electrodes of sub-pixels of the three colors of an original light-transmitting display panel on the array substrate are all rhombuses. At this time, a proportion of energy of the non-zero-order diffraction spot of the light-transmitting display panel is relatively high, and the diffraction phenomenon is obvious. The present application optimizes configuration of the first electrodes of the original light-transmitting display panel, adjusts shapes and sizes of the first electrodes, and further disrupts a periodic structure of the first electrodes, so that a proportion of energy of the zero-order diffraction spot of the light-transmitting display panel can be increased, and the diffraction phenomenon of the light-transmitting display panel can be mitigated.

In some other embodiments, as shown in <FIG>, each repeated unit <NUM> includes two pixel groups distributed along the second direction Y, i.e., a first pixel group <NUM> and a second pixel group <NUM>. Each pixel group includes one first color sub-pixel, one second color sub-pixel, and one third color sub-pixel. Central points of first electrodes <NUM>, <NUM> and <NUM> of the three sub-pixels in each of the pixel groups, when connected by lines, form a triangle. An arrangement structure of one of the pixel groups after being inverted by <NUM> degrees in the first direction X may be identical to an arrangement structure of the other one of the pixel groups in the repeated unit <NUM>. The first direction intersects the second direction Y. An orthographic projection of a first electrode <NUM> of the first color sub-pixel and an orthographic projection of the first electrode <NUM> of the third color sub-pixel on the array substrate are circles, an orthographic projection of the first electrode <NUM> of the second color sub-pixel on the array substrate is an octagon, and virtual extension lines of four sides of the octagon constitute a rectangle.

Further, a diameter of the first electrode <NUM> of the first color sub-pixel ranges from <NUM> to <NUM>, a diameter of the first electrode <NUM> of the third color sub-pixel ranges from <NUM> to <NUM>, the long side and short side of a rectangle corresponding to the first electrode <NUM> of the second color sub-pixel range from <NUM> to <NUM> and <NUM> to <NUM>, respectively. And/or a distance between central points of first electrodes <NUM> of two first color sub-pixels is <NUM> to <NUM>, a distance between central points of first electrodes <NUM> of two second color sub-pixels is <NUM> to <NUM>, a distance between central points of first electrodes <NUM> of two third color sub-pixels is <NUM> to <NUM>; and/or the central points of the first electrodes <NUM> of the two first color sub-pixels and the central points of the first electrodes <NUM> of the two third color sub-pixels, when connected by lines, constitute a parallelogram.

Exemplarily, before optimization, an orthographic projection of the first electrode of the first color sub-pixel of an original light-transmitting display panel on the array substrate is a rhombus, and orthographic projections of the first electrodes of the second color sub-pixel and the third color sub-pixel on the array substrate are both octagons. At this time, a proportion of energy of the non-zero-order diffraction spot of the light-transmitting display panel is relatively high, and the diffraction phenomenon is obvious. The present application optimizes configuration of the first electrodes of the original light-transmitting display panel, adjusts shapes and sizes of first electrodes of sub-pixels of some color(s), and further disrupts a periodic structure of the first electrodes, so that a proportion of energy of the zero-order diffraction spot of the light-transmitting display panel can be increased, and the diffraction phenomenon of the light-transmitting display panel can be mitigated.

In some embodiments, as shown in <FIG>, each repeated unit <NUM> includes a first pixel group <NUM> and a second pixel group <NUM> distributed along the second direction Y The first pixel group <NUM> includes one first color sub-pixel, two second color sub-pixels, and one third color sub-pixel distributed along the first direction X. The second pixel group <NUM> includes one third color sub-pixel, one first color sub-pixel, and two second color sub-pixels distributed along the first direction X. The two second color sub-pixels in each of the first pixel group <NUM> and the second pixel group <NUM> are distributed along the second direction Y The first direction X intersects the second direction Y. An orthographic projection of the first electrode <NUM>, <NUM> or <NUM> of each sub-pixel on the array substrate is a circle.

Further, a diameter of the first electrode <NUM> of the first color sub-pixel ranges from <NUM> to <NUM>, a diameter of the first electrode <NUM> of each second color sub-pixel ranges from <NUM> to <NUM>, and a diameter of the first electrode <NUM> of the third color sub-pixel ranges from <NUM> to <NUM>. And/or, a distance between central points of the first electrodes <NUM> of two first color sub-pixels is <NUM> to <NUM>, a distance between central points of the first electrodes <NUM> of the two second color sub-pixels in each pixel group is <NUM> to <NUM>, a distance between central points of the first electrodes <NUM> of two third color sub-pixels is <NUM> to <NUM>. And/or, the repeated unit <NUM> as a whole constitutes a parallelogram.

Exemplarily, before optimization, orthographic projections of first electrodes of a first color sub-pixel and a third color sub-pixel of an original light-transmitting display panel on the array substrate are both hexagons, and orthographic projections of the first electrodes of the second color sub-pixels are both pentagons. At this time, a proportion of energy of the non-zero-order diffraction spot of the light-transmitting display panel is relatively high, and the diffraction phenomenon is obvious. The present application optimizes configuration of the first electrodes of the original light-transmitting display panel, adjusts shapes and sizes of first electrodes of respective sub-pixels, and further disrupts a periodic structure of the first electrodes, so that a proportion of energy of the zero-order diffraction spot of the light-transmitting display panel can be increased, and the diffraction phenomenon of the light-transmitting display panel can be mitigated.

Further, as shown in <FIG>, a distribution density of the repeated units <NUM> can be set greater to mitigate the diffraction phenomenon of the light-transmitting display panel.

In the above examples, the first color sub-pixel may be a red sub-pixel, the second color sub-pixel may be a green sub-pixel, and the third color sub-pixel may be a blue sub-pixel.

<FIG> is a schematic top view of a display panel according to an embodiment of the present application. As shown in <FIG>, the display panel <NUM> includes a first display area AA1, a second display area AA2, and a non-display area NA surrounding the first display area AA1 and the second display area AA2. A light transmittance of the first display area AA1 is greater than that of the second display area AA2.

Here, it is preferable that the light transmittance of the first display area AA1 is greater than or equal to <NUM>%. In order to ensure that the light transmittance of the first display area AA1 is greater than <NUM>%, even greater than <NUM>%, or even more, light transmittance of at least some of functional film layers of the display panel <NUM> of the embodiment of the present application is greater than <NUM>% or even greater than <NUM>%.

The display panel <NUM> may include a first surface S1 and a second surface S2 that are opposite to each other. The first surface S1 is a display surface. A photosensitive component may be positioned on the second surface side of the display panel <NUM>. The photosensitive component may correspond to the position of the first display area AA1.

The photosensitive component may be image acquisition equipment that may be used to acquire external image information. In this embodiment, the photosensitive component is Complementary Metal Oxide Semiconductor (CMOS) image acquisition equipment, and in some other embodiments, the photosensitive component may be another type of image acquisition equipment, such as Charge-coupled Device (CCD) image acquisition equipment. It may be understood that the photosensitive component may not be limited to the image acquisition equipment, and for example, in some embodiments, the photosensitive component may be a light sensor such as an infrared sensor, a proximity sensor, an infrared lens, a flood light sensor, an ambient light sensor, and a dot matrix projector etc. In addition, other elements such as a receiver or a speaker, may also be integrated on the second surface of the display panel <NUM>.

According to the display panel of the embodiment of the present application, the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the photosensitive component may be integrated on the back of the first display area AA1 of the display panel <NUM> to achieve under-screen integration of the photosensitive component (such as, image acquisition equipment), while the first display area AA1 can display pictures. Thus, the display area of the display panel <NUM> can be increased and a full-screen design of a display apparatus can be realized.

A combination of graphic parameters and position parameters of first electrodes in the first display area AA1 enables a ratio of zero-order diffraction spot energy of the display panel to light transmission energy of the display panel to be greater than or equal to <NUM>%, i.e., a proportion of the zero-order diffraction spot energy can be increased and a proportion of non-zero-order diffraction spot energy can be decreased. Therefore, the diffraction phenomenon of the light-transmitting display area can be mitigated, and a photosensitive quality of a photosensitive component (for example, a camera) integrated under the screen can be improved.

Exemplarily, the display panel <NUM> may further include an encapsulation layer and a polarizer and a cover plate positioned above the encapsulation layer. Alternatively, the cover plate may be directly arranged at least above the encapsulation layer of the first display area AA1 without a need for the polarizer, in order to avoid the polarizer's affecting light collection amount of corresponding photosensitive elements arranged under the first display area AA1. Of course, the polarizer may also be arranged above the encapsulation layer of the first display area AA1.

Claim 1:
A light-transmitting display panel (<NUM>), comprising
an array substrate (<NUM>); and
a light-emitting layer (<NUM>) positioned on the array substrate (<NUM>), the light-emitting layer (<NUM>) comprising a plurality of repeated units (<NUM>), a plurality of first electrodes (<NUM>, <NUM>, or <NUM>) of a plurality of sub-pixels in the repeated units (<NUM>) being arranged in a pattern, and a combination of graphic parameters and position parameters of the first electrodes (<NUM>, <NUM>, or <NUM>) arranged in the pattern enabling a ratio of zero-order diffraction spot energy of the light-transmitting display panel (<NUM>) to light transmission energy of the light-transmitting display panel (<NUM>) to be greater than or equal to <NUM>%,
characterized in that
each of the repeated units (<NUM>) comprises a first pixel group (<NUM>) and a second pixel group (<NUM>) distributed along a first direction, the first pixel group (<NUM>) comprises a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel distributed along a second direction, the second pixel group (<NUM>) comprises a third color sub-pixel, a first color sub-pixel, and a second color sub-pixel distributed along the second direction, and the first direction intersects the second direction; and
wherein an orthographic projection of a first electrode (<NUM>) of the first color sub-pixel and an orthographic projection of a first electrode (<NUM>) of the third color sub-pixel on the array substrate (<NUM>) are circles, and an orthographic projection of a first electrode (<NUM>) of the second color sub-pixel on the array substrate (<NUM>) is an ellipse and wherein a diameter of the first electrode (<NUM>) of the first color sub-pixel ranges from <NUM> to <NUM>, a diameter of the first electrode (<NUM>) of the third color sub-pixel ranges from <NUM> to <NUM>, a long axis of the first electrode (<NUM>) of the second color sub-pixel ranges from <NUM> to <NUM>, and a short axis of the first electrode (<NUM>) of the second color sub-pixel ranges from <NUM> to <NUM>.