Display panel and display device

Abstract

The present invention provides a display panel and a display device, wherein the display panel has a plurality of display units, and each display unit includes a light-emitting device and a photosensitive device, wherein the light-emitting device in each display unit is used to cooperate with each other so that the display panel has consistent upper display effect and lower display effect, and the photosensitive device is used to detect the light brightness of the light-emitting device. By making the display panel have consistent upper display effect and lower display effect and adding a photosensitive device therein, the present invention can ensure the accuracy when performing brightness compensation on the display panel, and can further ensure that the display panel that has performed brightness compensation has uniform brightness when displaying pictures.

Description

Technical Field

[0001] The present invention generally relates to the technical field of display panels, and in particular, to a display panel and a display device. Background Art

[0002] With the continuous development of electronic technology, the development of organic light emitting diode (OLED) display devices has become one of the hot spots of future display technology.

[0003] Based on this, how to ensure that the display panel has uniform brightness when displaying images is a problem that needs to be solved at present. Summary of the invention

[0004] In order to solve the above problems or other problems, the present invention provides the following technical solutions.

[0005] In a first aspect, the present invention provides a display panel, wherein the display panel has a plurality of display units, each of the display units comprising:

[0006] Light-emitting devices, wherein the light-emitting devices in the display units are used to cooperate with each other so that the display panel has consistent upper display effect and lower display effect; and

[0007] The photosensitive device is used to detect the light emitting brightness of the light emitting device.

[0008] According to a display panel in an embodiment of the present invention, the display unit has an upper light outlet and a lower light outlet, the light emitting device is located between the upper light outlet and the lower light outlet, and the photosensitive device is staggered with the upper light outlet and the lower light outlet.

[0009] According to the display panel in an embodiment of the present invention, the upper light outlet has a first opening area, the lower light outlet has a second opening area, and the first opening area is equal to the second opening area.

[0010] According to a display panel in an embodiment of the present invention, the upper light outlet has a first opening area, the lower light outlet has a second opening area, and the ratio between the first opening area and the second opening area of ​​each display unit is a preset threshold.

[0011] According to the display panel in an embodiment of the present invention, the light emitting device and the light sensing device have an overlapping area in a longitudinal direction perpendicular to the display unit.

[0012] According to a display panel in an embodiment of the present invention, the display unit further comprises a substrate and a driving circuit layer which are stacked, wherein the driving circuit layer comprises:

[0013] a first driving circuit, the first driving circuit being coupled to the light emitting device and configured to drive the light emitting device to emit light; and

[0014] A second driving circuit is coupled to the photosensitive device and is configured to drive the photosensitive device to detect the light emitting brightness of the light emitting device.

[0015] According to the display panel in an embodiment of the present invention, a light blocking layer is disposed in the substrate, and the light blocking layer is used to surround a lower light outlet of the display unit.

[0016] According to the display panel in an embodiment of the present invention, the photosensitive device is arranged between the driving circuit layer and the light-emitting device.

[0017] According to the display panel in an embodiment of the present invention, the photosensitive device has a light incident side, and the light incident side is provided with an ultraviolet filter film.

[0018] In a second aspect, the present invention provides a display device, comprising any one of the display panels described above.

[0019] The beneficial effects of the present invention are as follows: the present invention provides a display panel and a display device, wherein the display panel has a plurality of display units, and each display unit includes a light-emitting device and a photosensitive device, wherein the light-emitting device in each display unit is used to cooperate with each other so that the display panel has consistent upper display effect and lower display effect, and the photosensitive device is used to detect the light brightness of the light-emitting device. By making the display panel have consistent upper display effect and lower display effect and adding a photosensitive device therein, the present invention can ensure the accuracy when performing brightness compensation on the display panel, and can further ensure that the display panel that has performed brightness compensation has uniform brightness when displaying images. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of each embodiment according to the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 FIG. 1 is a schematic structural diagram of a display panel provided in a first embodiment according to the present invention.

[0022] Figure 2 FIG. 1 is a schematic diagram of the detailed structure of a display unit provided in a first embodiment according to the present invention.

[0023] Figure 3 FIG. 1 is a schematic structural diagram of a display panel provided in a second embodiment according to the present invention.

[0024] Figure 4 FIG. 1 is a schematic diagram of the detailed structure of a display unit provided in a second embodiment according to the present invention.

[0025] Figure 5 Schematic diagram of the structure of a display device provided by an embodiment according to the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of a mobile terminal provided in an embodiment according to the present invention.

[0027] Figure 7 It is a detailed structural diagram of a mobile terminal provided by an embodiment according to the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] See also Figure 1 , Figure 1 A schematic structural diagram of a display panel 100 provided in accordance with a first embodiment of the present invention is shown. From the figure, the various components of the first embodiment of the present invention and the relative positional relationship of the various components can be clearly seen.

[0034] like Figure 1 As shown, the display panel 100 has a plurality of display units (110a and 110b), each display unit (110a and 110b) includes a light emitting device (111a and 111b) and a light sensing device (112a and 112b). Next, in combination with Figure 1 , each component in the display panel 100 is described in detail.

[0035] The light emitting devices (111a and 111b) in each display unit (110a and 110b) are used to cooperate with each other so that the display panel 100 has consistent upper display effect and lower display effect.

[0036] Specifically, in an embodiment according to the present invention, the light-emitting devices (111a and 111b) may be organic light emitting diodes (OLED) devices. Further, the display units (110a and 110b) may be sub-pixel units of light-emitting devices that only include one luminous color (for example, red or green or blue sub-pixel units, i.e., R or G or B), or the display units (110a and 110b) may also be a pixel unit composed of a plurality of sub-pixel units. Further, the display panel 100 is a transparent display panel (double-side display) that can emit light on both sides. Such a display panel 100 has a long service life and can generally be used in scenarios such as vehicles and commercial exhibitions.

[0037] The photosensitive devices (112a and 112b) are used to detect the light emitting brightness of the light emitting devices (111a and 111b). Specifically, the light emitting intensity of the light emitting devices (111a and 111b) determines the size of their light emitting brightness.

[0038] It should be noted that, in some embodiments, a detection circuit is usually set in the display panel to measure the current passing through the light-emitting device or the current passing through the thin film transistor (TFT) corresponding to the light-emitting device. Then, the brightness of the light-emitting device is calculated based on the detected current, and the brightness of the light-emitting device is compensated when necessary to solve the problem of uneven brightness of the display panel when displaying.

[0039] However, the inventors have found that the performance of the materials in the light-emitting device will gradually degrade with the increase of the use time, thereby causing the degradation of its light-emitting performance. Furthermore, when the same current value is passed through the light-emitting devices with different degrees of light-emitting performance degradation, their light-emitting degrees are not the same. Therefore, in these embodiments, the accuracy of the brightness compensation performed on the light-emitting devices in the display panel cannot be guaranteed, and therefore it cannot be guaranteed that the display panel can have uniform brightness when displaying pictures.

[0040] Now return to reference Figure 1Specifically, taking the display unit 110a as an example, in the embodiment according to the present invention, a photosensitive device 112a is added to the display unit 110a to detect the luminous brightness of the light-emitting device 111a. That is to say, what is obtained in the embodiment of the present invention is the actual luminous brightness of the light-emitting device 111a, rather than the theoretical luminous brightness calculated based on the current passing through the light-emitting device 111a. Therefore, the embodiment according to the present invention can ensure the accuracy of brightness compensation for the display panel 100.

[0041] It should also be noted that the inventors of the present case have further discovered that, since the display panel 100 in the embodiment of the present invention is a transparent display panel that can emit light on both sides, when only accurate brightness compensation is ensured for the display panel 100, it is still impossible to ensure that the display panel 100 can have uniform brightness when displaying images.

[0042] For example, if the upper display effect and the lower display effect of the display panel 100 are inconsistent, then when the display panel 100 needs to perform brightness compensation, the required upper display brightness compensation degree is not the same as the lower display brightness compensation degree. Under the premise of ensuring the cost of the display panel 100, the light-emitting devices (111a and 111b) provided in each display unit (110a and 110b) are configured to enable the display panel 100 to have both the upper display effect and the lower display effect in the corresponding area. That is to say, in this case, it is impossible for the display panel 100 to have uniform upper display brightness and lower display brightness at the same time when redisplaying the picture after brightness compensation. Instead, it can only be ensured that the display panel 100 can have uniform upper display brightness, or, lower display brightness.

[0043] However, the embodiment of the present invention not only adds photosensitive devices (112a and 112b) to ensure that the display panel 100 can be accurately compensated for brightness, but also further enables the display panel 100 to have consistent upper and lower display effects. Therefore, it can be ensured that when the display panel 100 redisplays the image after brightness compensation, it can have uniform upper and lower display brightness at the same time.

[0044] For details, please continue to refer to Figure 1In this embodiment, each display unit (110a and 110b) has an upper light outlet (C11 and C21) and a lower light outlet (C12 and C22). Taking the display unit 110a as an example, the light emitting device 111a is arranged opposite to the upper light outlet C11 and the lower light outlet C12, and is located between the upper light outlet C11 and the lower light outlet C12. Furthermore, the photosensitive device 112a is arranged to be offset from the upper light outlet C11 and the lower light outlet C12 to avoid affecting the light emitting device 111a through the upper light outlet C11 and the lower light outlet C12 so that the display panel 100 has both the upper display effect and the lower display effect in the corresponding area. Such an arrangement can ensure that the display unit 110a has the best display effect.

[0045] Further, in the present embodiment, the upper light outlet (C11 and C21) has a first opening area (S11 and S21), and the lower light outlet (C12 and C22) has a second opening area (S12 and S22), wherein the first opening area (S11 and S21) is equal to the second opening area (S12 and S22). Thus, since the sum of the areas of the multiple upper light outlets (C11 to Cn1) of the display panel 100 is equal to the sum of the areas of the multiple lower light outlets (C12 to Cn2), the display panel 100 can have consistent upper display effects and lower display effects.

[0046] Specifically, in one embodiment, the first opening area S11 of the display unit 110a is equal to the second opening area S12, the first opening area S21 of the display unit 110b is equal to the second opening area S22, and the first opening area S11 of the display unit 110a does not need to be equal to the first opening area S21 of the display unit 110b, and the second opening area S12 of the display unit 110a does not need to be equal to the second opening area S22 of the display unit 110b.

[0047] Furthermore, in another embodiment, the first opening area S11 of the display unit 110a may be equal to the first opening area S21 of the display unit 110b, and the second opening area S12 of the display unit 110a may be equal to the second opening area S22 of the display unit 110b.

[0048] For further information, see Figure 2 , Figure 2The detailed structural schematic diagram of the display unit 110a provided in the first embodiment according to the present invention is shown. Specifically, in the present embodiment, the light emitting device 111a includes a first anode layer 1, a light emitting layer 2 and a first cathode layer 3 arranged in layers, wherein the material of the first anode layer 1 includes but is not limited to transparent oxide, and the material of the transparent oxide can be, for example, indium tin oxide (ITO). Further, in the present embodiment, the photosensitive device 112a can be, for example, an amorphous silicon-based photodiode (a-si substrate Photo-Diode), and includes a second anode layer 4, a photosensitive layer 5 and a second cathode layer 6 arranged in layers, wherein the material of the second anode layer 4 includes but is not limited to indium tin oxide (ITO) and a composition of indium tin oxide (ITO) and aluminum-doped zinc oxide (AZO, aluminum-doped ZnO film), the material of the photosensitive layer 5 includes but is not limited to P-Si, I-Si, N-Si, the material of the second cathode layer 6 includes but is not limited to Mo / Al, Ti / Al and ITO / Ag, and specifically, the second cathode layer 6 is a high reflectivity layer.

[0049] Furthermore, the inventors have found that the performance of the photosensitive device 112a will gradually age as it is frequently exposed to ultraviolet rays during the photosensitivity process. Therefore, in order to ensure the accuracy of the light emitting brightness of the light emitting device 111a detected by the photosensitive device 112, Figure 2 As shown, an ultraviolet filter film 7 may be provided on the light incident side of the photosensitive device 112a, that is, an ultraviolet filter film 7 may be provided on the second cathode layer 6. Specifically, the material of the ultraviolet filter film 7 includes but is not limited to silicon nitride (chemical formula: SiNx), and the thickness of the ultraviolet filter film 7 is greater than

[0050] Please continue reading Figure 2 ,like Figure 2 As shown, the display unit 110a also includes a stacked substrate 113a and a driving circuit layer 114a, wherein the driving circuit layer 114a includes a first driving circuit (not shown in the figure) coupled to the light-emitting device 111a and a second driving circuit (not shown in the figure) coupled to the photosensitive device 112a, and wherein the first driving circuit is configured to drive the light-emitting device 111a to emit light, and the second driving circuit is configured to drive the photosensitive device 112a to detect the light-emitting brightness of the light-emitting device 111a.

[0051] Specifically, Figure 2As shown, the first driving circuit is composed of a plurality of first thin film transistors T1, and the first thin film transistor T1 specifically includes: a first doped region 8, an undoped region 9, a second doped region 10, a first gate 11, a second gate 12, a first drain metal layer 13, and a first source metal layer 14, wherein the first gate 11 and the second gate 12 are arranged opposite to each other to form a storage capacitor. Further, the second driving circuit is composed of a plurality of second thin film transistors T2, and the second thin film transistor T2 specifically includes: a second drain metal layer 15, a third doped region 16, a third gate 17, a second source metal layer 18, and a fourth doped region 19.

[0052] It should be noted that, in this embodiment, the first driving circuit and the second driving circuit are arranged in the same layer to achieve the purpose of reducing the thickness of the display panel 100. Further, in this embodiment, the photosensitive device 112a is arranged between the driving circuit layer 114a and the light emitting device 111a.

[0053] For further information, please refer to Figure 2 The material of the substrate 113a includes but is not limited to glass, and a light blocking layer 1131a is provided in the substrate 113a, and the light blocking layer 1131a is used to enclose the lower light outlet C12 of the display unit 110a, that is, the light blocking layer 1131a can be used to limit the second opening area S12 of the lower light outlet C12, and further, can also be used to prevent ambient light from entering the display unit 110a.

[0054] For further information, please refer to Figure 2 The display unit 110a further includes a pixel definition layer 115a (Pixel Definition Layer, PDL), wherein the pixel definition layer in each display unit (110a and 110b) is formed in the same process step to define and isolate the light-emitting devices (111a and 111b) in each display unit (110a and 110b).

[0055] For further information, please refer to Figure 2 The display unit 110a further includes a dielectric layer 116a disposed between the driving circuit layer 114a and the pixel definition layer 115a, wherein the photosensitive device 112a is formed in the dielectric layer 116a. Specifically, the dielectric layer 116a is a transparent material so that the portion between the upper light outlet C11 and the lower light outlet C12 of the display unit 110a can transmit light.

[0056] For further information, please refer to Figure 2 The display unit 110a further includes a water-oxygen barrier layer 117a disposed between the driving circuit layer 114a and the substrate 113a, and the water-oxygen barrier layer 117a is used to prevent moisture from penetrating into the driving circuit layer 114a and causing damage thereto.

[0057] For further information, please refer to Figure 2 The display unit 110a further includes an encapsulation layer 118a (Thin Film Encapsulation, TFE) disposed on the light emitting device 111a. The encapsulation layer 118a uses an ultra-thin film to seal the light emitting device 111a to protect the light emitting device 111a from corrosion by external moisture and oxygen. Specifically, the encapsulation layer 118a is provided with a support column 1181a (Photo Spacer, PS) located on the pixel definition layer 115a. The support column 1181a is used to protect the metal circuit in the display panel 100 from being scratched during the process of evaporating the organic light emitting material.

[0058] According to the foregoing content, a first embodiment of the present invention provides a display panel 100, wherein the display panel 100 has a plurality of display units (110a and 110b), each display unit (110a and 110b) includes a light emitting device (111a and 111b) and a photosensitive device (112a and 112b), wherein the light emitting devices (111a and 111b) in each display unit (110a and 110b) are used to cooperate with each other so that the display panel 100 has consistent upper display effect and lower display effect, and the photosensitive devices (112a and 112b) are used to detect the light emitting brightness of the light emitting devices (111a and 111b). For example, by making the first opening area (S11 and S21) of the upper light outlet (C11 and C21) of each display unit (110a and 110b) equal to the second opening area (S12 and S22) of the lower light outlet (C12 and C22), the display panel 100 has consistent upper display effects and lower display effects, and by adding photosensitive devices (112a and 112b) in each display unit (110a and 110b), the accuracy of brightness compensation for the display panel 100 can be guaranteed, and it can further be ensured that the display panel 100 that has been brightness compensated has uniform brightness when displaying images.

[0059] See also Figure 3 and Figure 4 , Figure 3 FIG. 2 shows a schematic structural diagram of a display panel 200 provided in accordance with a second embodiment of the present invention. Figure 4 The detailed structural diagram of the display unit 210a provided in the second embodiment according to the present invention is shown. From the figure, the various components of the second embodiment according to the present invention and the relative position relationship of the various components can be clearly seen.

[0060] like Figures 1 to 4As shown, the structure of the second embodiment is substantially the same as that of the first embodiment described above, wherein the substrate 213a (including the light blocking layer 2131a), the driving circuit layer 214a, the pixel definition layer 215a, the dielectric layer 216a, the water and oxygen barrier layer 217a and the encapsulation layer 218a (including the support column 2181a) in the second embodiment are similar to the substrate 113a (including the light blocking layer 1131a), the driving circuit layer 114a, the pixel definition layer 115a, the dielectric layer 116a, the water and oxygen barrier layer 117a and the encapsulation layer 218a (including the support column 2181a) in the first embodiment. a and the encapsulation layer 118a (including the support column 1181a) have the same function and setting position, and the display units (210a and 210b) in the second embodiment are the same size as the display units (110a and 110b) in the first embodiment, and the light-emitting devices (211a and 211b) and the photosensitive devices (212a and 212b) in the second embodiment have the same film structure as the light-emitting devices (111a and 111b) and the photosensitive devices (112a and 112b) in the first embodiment.

[0061] The difference is that, in this embodiment, the ratio between the first opening area (S11 and S21) and the second opening area (S12 and S22) of each display unit (210a and 210b) is set to the same preset threshold value, so that the display panel 100 has consistent upper display effect and lower display effect, that is, in this embodiment, S11 / S21=S12 / S22. Moreover, compared with the first embodiment described above, in this embodiment, the first opening area (S11 and S21) of each display unit (210a and 210b) is larger, that is, in this embodiment, the upper display area of ​​the display panel 200 is larger.

[0062] It should be noted that if Figure 3 as well as Figure 4 As shown, in this embodiment, while increasing the first opening area (S11 and S21) of the upper light outlet (C11 and C21) of each display unit (210a and 210b), the size of the light emitting device (211a and 211b) is also increased to match the first opening area (S11 and S21). Further, in other embodiments according to the present invention, only the first opening area of ​​the upper light outlet can be increased without correspondingly increasing the size of the light emitting device, and similar effects can also be achieved.

[0063] Furthermore, if Figure 3 as well as Figure 4 As shown, in this embodiment, since the size of the light emitting devices (211a and 211b) is correspondingly increased, the light emitting devices (211a and 211b) and the photosensitive devices (212a and 212b) have an overlapping area in the longitudinal direction perpendicular to the display units (210a and 210b).

[0064] It should be noted that, through research by the inventors of this case, it was found that, taking the display unit 210a as an example, when the photosensitive device 212a detects the luminous brightness of the light-emitting device 211a, the amount of light sensitivity obtained will determine the signal-to-noise ratio (that is, the value of "photocurrent / dark current") when calculating the luminous brightness of the light-emitting device 211a. Furthermore, the larger the signal-to-noise ratio, the more accurate the luminous brightness of the light-emitting device 211a calculated by the photosensitive device 212a will be.

[0065] Now return to reference Figure 1 and Figure 4 Compared with the first embodiment described above, in this embodiment, since the light-emitting device 211a and the photosensitive device 212a have a certain overlapping area in the longitudinal direction perpendicular to the display unit 210a, in this embodiment, the light-sensitive amount of the photosensitive device 212a is greater. That is to say, this embodiment further ensures the accuracy of the light-emitting brightness of the light-emitting device 211a calculated by the photosensitive device 212a by increasing the signal-to-noise ratio of the photosensitive device 212a when calculating the light-emitting brightness of the light-emitting device 211a.

[0066] According to the foregoing content, a second embodiment of the present invention provides a display panel 200, wherein the display panel 200 has a plurality of display units (210a and 210b), each display unit (210a and 210b) includes a light emitting device (211a and 211b) and a photosensitive device (212a and 212b), wherein the light emitting devices (211a and 211b) in each display unit (210a and 210b) are used to cooperate with each other so that the display panel 200 has consistent upper display effect and lower display effect, and the photosensitive devices (212a and 212b) are used to detect the light emitting devices (211a and 211b). b), in this embodiment, by making the ratio between the first opening area (S11 and S21) and the second opening area (S12 and S22) of each display unit (210a and 210b) the same preset threshold, the display panel 200 has consistent upper display effect and lower display effect, and by adding photosensitive devices (212a and 212b) in each display unit (210a and 210b), the accuracy of brightness compensation for the display panel 200 can be guaranteed, and it can further be ensured that the display panel 200 that has been brightness compensated has uniform brightness when displaying pictures.

[0067] See also Figure 5 , Figure 5 A schematic structural diagram of a display device 300 provided in accordance with an embodiment of the present invention is shown, from which the various components of the embodiment of the present invention and the relative positional relationship of the various components can be intuitively seen.

[0068] like Figure 5 As shown, the display device 300 includes a display panel 310 , wherein the display panel 310 may include the display panel 100 in the first embodiment described above, or include the display panel 200 in the second embodiment described above.

[0069] See also Figure 6 , Figure 6 It is a structural schematic diagram of a mobile terminal 400 provided in accordance with an embodiment of the present invention. The above-mentioned display device 300 is applied to the mobile terminal 400. The mobile terminal 400 may be a smart phone or a tablet computer, etc. From the figure, the various components of the present invention and the relative positional relationship of the various components can be intuitively seen.

[0070] like Figure 6 As shown, the mobile terminal 400 includes a processor 401 and a memory 402. The processor 401 is electrically connected to the memory 402.

[0071] Processor 401 is the control center of mobile terminal 400. It uses various interfaces and lines to connect various parts of the entire mobile terminal. It executes various functions of the mobile terminal and processes data by running or loading applications stored in memory 402 and calling data stored in memory 402, thereby monitoring the mobile terminal as a whole.

[0072] See also Figure 7 , Figure 7 It is a detailed structural diagram of a mobile terminal 400 provided in accordance with an embodiment of the present invention. The mobile terminal 400 may be a smart phone or a tablet computer, etc. From the figure, the various components of the present invention and the relative positional relationship of the various components can be clearly seen.

[0073] Figure 7 FIG. 1 shows a specific structural block diagram of the mobile terminal 100 provided by an embodiment of the present invention. Figure 7 As shown, the mobile terminal 400 may include a radio frequency (RF) circuit 410, a memory 420 including one or more computer-readable storage media, an input unit 430, a display unit 440, a sensor 450, an audio circuit 460, a transmission module 470 (such as wireless fidelity, WiFi, Wireless Fidelity), a processor 480 including one or more processing cores, and a power supply 490. Those skilled in the art will understand that Figure 7 The structure of the mobile terminal shown in the figure does not constitute a limitation on the mobile terminal, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0074] The RF circuit 410 is used to receive and send electromagnetic waves, realize the mutual conversion between electromagnetic waves and electrical signals, and thus communicate with a communication network or other devices. The RF circuit 410 may include various existing circuit components for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption / decryption chip, a user identity module (SIM) card, a memory, etc. The RF circuit 410 can communicate with various networks such as the Internet, an intranet, a wireless network, or communicate with other devices through a wireless network. The above-mentioned wireless network may include a cellular telephone network, a wireless local area network, or a metropolitan area network. The above-mentioned wireless networks can use various communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (such as Institute of Electrical and Electronics Engineers standards IEEE 802.11a, IEEE 802.11b, IEEE802.11g and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Worldwide Interoperability for Microwave Access (Wi-Max), other protocols for email, instant messaging and short messages, and any other suitable communication protocols, even those that have not yet been developed.

[0075] The memory 420 can be used to store software programs and modules, such as the corresponding program instructions in the above-mentioned audio power amplifier control method. The processor 480 executes various functional applications and data processing by running the software programs and modules stored in the memory 420, that is, to obtain the frequency of the information transmission signal transmitted by the mobile terminal 400. Generate interference signals and other functions. The memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 420 may further include a memory remotely arranged relative to the processor 480, and these remote memories may be connected to the mobile terminal 400 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0076] The input unit 430 can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, the input unit 430 may include a touch-sensitive surface 431 and other input devices 432. The touch-sensitive surface 431, also known as a touch display screen or a touchpad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface 431), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface 431 may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 480, and can receive and execute commands sent by the processor 480. In addition, the touch-sensitive surface 431 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch-sensitive surface 431, the input unit 430 may further include other input devices 432. Specifically, other input devices 432 may include but are not limited to one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

[0077] The display unit 440 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the mobile terminal 400, which can be composed of graphics, text, icons, videos and any combination thereof. The display unit 440 may include a display panel 441. Optionally, the display panel 441 may be configured in the form of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), etc. Further, the touch-sensitive surface 431 may cover the display panel 441. When the touch-sensitive surface 431 detects a touch operation on or near it, it is transmitted to the processor 480 to determine the type of touch event, and then the processor 480 provides corresponding visual output on the display panel 441 according to the type of touch event. Although in the figure, the touch-sensitive surface 431 and the display panel 441 are implemented as two independent components to implement input and output functions, in some embodiments, the touch-sensitive surface 431 and the display panel 441 can be integrated to implement input and output functions.

[0078] The mobile terminal 400 may also include at least one sensor 450, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 441 according to the brightness of the ambient light, and the proximity sensor may generate an interrupt when the flip cover is closed or closed. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can also be configured in the mobile terminal 400, they will not be repeated here.

[0079] The audio circuit 460, the speaker 461, and the microphone 462 can provide an audio interface between the user and the mobile terminal 400. The audio circuit 460 can transmit the received audio data to the speaker 461 after converting the received audio data into an electrical signal, which is converted into a sound signal for output by the speaker 461; on the other hand, the microphone 462 converts the collected sound signal into an electrical signal, which is received by the audio circuit 460 and converted into audio data, and then the audio data is output to the processor 480 for processing, and then sent to another terminal through the RF circuit 410, or the audio data is output to the memory 420 for further processing. The audio circuit 460 may also include an earplug jack to provide communication between an external headset and the mobile terminal 400.

[0080] The mobile terminal 400 can help users receive requests, send information, etc. through the transmission module 470 (such as a Wi-Fi module), which provides users with wireless broadband Internet access. Although the transmission module 470 is shown in the figure, it is understandable that it is not a necessary component of the mobile terminal 400 and can be omitted as needed without changing the essence of the invention.

[0081] The processor 480 is the control center of the mobile terminal 400. It uses various interfaces and lines to connect various parts of the entire mobile phone. It executes various functions of the mobile terminal 400 and processes data by running or executing software programs and / or modules stored in the memory 420, and calling data stored in the memory 420, so as to monitor the mobile terminal as a whole. Optionally, the processor 480 may include one or more processing cores; in some embodiments, the processor 480 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communications. It can be understood that the above-mentioned modem processor may not be integrated into the processor 480.

[0082] The mobile terminal 400 also includes a power supply 490 (such as a battery) for supplying power to various components. In some embodiments, the power supply can be logically connected to the processor 480 through a power management system, so that the power management system can manage charging, discharging, and power consumption management. The power supply 490 can also include any components such as one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, and power status indicators.

[0083] Although not shown, the mobile terminal 400 further includes a camera (such as a front camera, a rear camera, etc.), a Bluetooth module, a flashlight, etc., which will not be described in detail. Specifically in this embodiment, the display unit of the mobile terminal 400 is a touch screen display.

[0084] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent replacement falls within the protection scope required by the present invention.

[0085] In summary, although the preferred embodiments of the present invention have been disclosed as above, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A display panel, characterized in that: The display panel has a plurality of display units, each of which includes: Light-emitting devices, wherein the light-emitting devices in the display units are used to cooperate with each other so that the display panel has consistent upper display effect and lower display effect; and A photosensitive device, used to detect the light brightness of the light emitting device; The display unit has an upper light outlet and a lower light outlet, the light emitting device is located between the upper light outlet and the lower light outlet, the light sensing device is staggered with the upper light outlet and the lower light outlet, the upper light outlet has a first opening area, and the lower light outlet has a second opening area, wherein the ratio between the first opening area and the second opening area of ​​each of the display units is a preset threshold value; The preset threshold is greater than 1, and the display unit further includes a stacked substrate and a driving circuit layer, the photosensitive device is arranged between the driving circuit layer and the light-emitting device, the light-emitting device and the photosensitive device have an overlapping area in a longitudinal direction perpendicular to the display unit, and the light-emitting device and the photosensitive device have a non-overlapping area in a longitudinal direction perpendicular to the display unit, and the photosensitive device directly receives the light emitted by the light-emitting device.

2. The display panel according to claim 1, characterized in that: The driving circuit layer comprises: a first driving circuit, the first driving circuit being coupled to the light emitting device and configured to drive the light emitting device to emit light; and A second driving circuit is coupled to the photosensitive device and is configured to drive the photosensitive device to detect the light emitting brightness of the light emitting device.

3. The display panel according to claim 1, characterized in that: A light blocking layer is arranged in the substrate, and the light blocking layer is used to surround the lower light outlet of the display unit.

4. The display panel according to claim 1, characterized in that: The photosensitive device has a light incident side, and the light incident side is provided with an ultraviolet filter film.

5. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 4.

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