CN112151584B - Display screen and terminal - Google Patents
Display screen and terminal Download PDFInfo
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- CN112151584B CN112151584B CN202010998281.XA CN202010998281A CN112151584B CN 112151584 B CN112151584 B CN 112151584B CN 202010998281 A CN202010998281 A CN 202010998281A CN 112151584 B CN112151584 B CN 112151584B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
- H10K59/1315—Interconnections, e.g. wiring lines or terminals comprising structures specially adapted for lowering the resistance
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
Abstract
The invention discloses a display screen and a terminal, wherein the display screen comprises: the display panel comprises a panel, a first display panel and a second display panel, wherein the panel is provided with a first pixel area which is provided with a plurality of spaced first pixel units; the cathode layer comprises a plurality of cathode blocks and a plurality of connecting bridges, one cathode block correspondingly covers one first pixel unit, one connecting bridge is connected with two cathode blocks so as to electrically conduct the plurality of cathode blocks, and the width of the connecting bridge is smaller than that of the cathode blocks; and the transparent conducting layer at least covers the cathode block and the connecting bridge, and the transparent conducting layer covers the area width of the connecting bridge and is more than or equal to the area width of the cathode block. The technical scheme of the invention aims to improve the screen ratio of the display screen applied to the terminal and perform full-screen display.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a display screen and a terminal applying the display screen.
Background
Under the increasingly common condition of terminal products, the requirement that the user accounts for the ratio to the screen is also higher and higher, in order to make the shared proportion of display screen higher, can place sensitization devices such as camera in the below of display screen in the trade, and display screen itself is light-tight, in order to make sensitization devices such as camera acquire outside light, just need carry out fretwork processing in the position that the display screen corresponds sensitization devices, perhaps directly design into transparent construction in the position that the display screen corresponds sensitization devices, do not carry out screen display.
The processing mode enables the photosensitive device to have an obvious hole structure design on the display screen as a whole, and the display screen corresponding to the photosensitive device cannot display pictures and cannot meet the requirements of users.
Disclosure of Invention
The invention mainly aims to provide a display screen, aiming at improving the screen ratio of the display screen applied to a terminal and carrying out full-screen display.
In order to achieve the above object, the present invention provides a display screen, which includes:
the display panel comprises a panel, a first pixel area and a second pixel area, wherein the panel is provided with the first pixel area which is provided with a plurality of spaced first pixel units;
the cathode layer comprises a plurality of cathode blocks and a plurality of connecting bridges, one cathode block correspondingly covers one first pixel unit, one connecting bridge is connected with two cathode blocks so as to electrically conduct the plurality of cathode blocks, and the width of the connecting bridge is smaller than that of the cathode blocks; and
the transparent conducting layer at least covers the cathode block and the connecting bridge, and the transparent conducting layer covers the area width of the connecting bridge and is larger than or equal to the area width of the cathode block.
Optionally, the width of the connecting bridge is d, and d is more than or equal to 2 mu m and less than or equal to 5 mu m.
Optionally, the width of the cathode block is identical to the width of the first pixel unit.
Optionally, the cathode block has a width D, 20 μm ≦ D ≦ 40 μm.
Optionally, the cathode layer is made into the cathode blocks and the connecting bridges by fine metal mask evaporation.
Optionally, the material of the transparent conductive layer is indium tin oxide.
Optionally, the transparent conductive layer covers the entire first pixel region.
Optionally, the first pixel area includes a plurality of strip-shaped pixel areas distributed along a strip shape and arranged side by side at intervals, a plurality of first pixel units are arranged in each strip-shaped pixel area, the plurality of first pixel units in each strip-shaped pixel area are arranged side by side at intervals along an extending direction of the strip-shaped pixel area, and the connecting bridge is connected between every two adjacent first pixel units;
the transparent conducting layer comprises a plurality of strip-shaped transparent layers which are arranged in a strip shape and are arranged at intervals, and one strip-shaped transparent layer correspondingly covers one strip-shaped pixel area.
Optionally, the width of the transparent stripe layer is consistent with the width of the first pixel unit.
Optionally, the panel further has a second pixel region, and the second pixel region is provided with a plurality of second pixel units;
the density of the first pixel units arranged in the first pixel area is smaller than that of the second pixel units arranged in the second pixel area.
The invention also provides a terminal, which comprises a main body part and a display screen;
the display screen includes:
the display panel comprises a panel, a first display panel and a second display panel, wherein the panel is provided with a first pixel area which is provided with a plurality of spaced first pixel units;
the cathode layer comprises a plurality of cathode blocks and a plurality of connecting bridges, one cathode block correspondingly covers one first pixel unit, one connecting bridge is connected with two cathode blocks so as to electrically conduct the plurality of cathode blocks, and the width of the connecting bridge is smaller than that of the cathode blocks; and
the transparent conducting layer at least covers the cathode block and the connecting bridge, and the width of the area, covered by the connecting bridge, of the transparent conducting layer is larger than or equal to the width of the area, covered by the cathode block;
the display screen is connected with the main body part and can display and control functions of the main body part.
Optionally, the terminal further includes a photosensitive device, the photosensitive device is disposed on the main body portion, and a vertical projection of a photosensitive area of the photosensitive device on the display screen falls into the first pixel area.
In the technical scheme of the invention, the width of the connecting bridge part of the cathode layer is smaller than that of the cathode block part, and the transparent conducting layer is additionally arranged in the display screen. The transparent conducting layer is deposited on the panel and covers the cathode layer, the transparent conducting layer is directly connected with the cathode layer, the width of the part, covered by the connecting bridge, of the transparent conducting layer is at least larger than that of the cathode block, namely, the width of the part, corresponding to the connecting bridge, of the transparent conducting layer is equal to that of the cathode block or larger than that of the cathode block. The impedance of the cathode layer is equivalent to that of a resistor which is connected in parallel, so that the impedance at the connecting bridge can be reduced, the impedance increase caused by the reduction of the area of the connecting bridge is avoided, and the current mutation phenomenon can be avoided. The transparent conductive layer has high light transmittance, and after the transparent conductive layer is deposited, the influence of the light transmittance of the panel in the first pixel area is small.
According to the technical scheme, the width of the connecting bridge of the cathode layer can be reduced by adding the transparent conducting layer, so that the width of the connecting bridge is smaller than that of the cathode block, and current density mutation caused by reduction of the width of the connecting bridge can be avoided, so that the shielding of the cathode layer on light is reduced, and the light transmittance of the display screen in the first pixel area is improved. The terminal using the display screen comprises a photosensitive device, the photosensitive area of the photosensitive device falls into the first pixel area in the vertical projection of the display screen, and external light can penetrate through the display screen to enter the photosensitive area of the photosensitive device, so that the terminal with the display screen can display pictures in each area of the display screen, and can ensure that the photosensitive device obtains the external light through the display screen and has a normal photosensitive function.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a terminal according to the present invention;
fig. 2 is an exploded view of a portion of the structure of the terminal of fig. 1;
FIG. 3 is a front view of the display screen of FIG. 2;
FIG. 4 is a front view of another embodiment of a display screen of the present invention;
FIG. 5 is a partial enlarged view of a second pixel region on a display panel according to the present invention;
FIG. 6 is a partial enlarged view of the second pixel region of FIG. 5 with a cathode;
FIG. 7 is a schematic diagram illustrating a first pixel unit layout of a first pixel region in an embodiment of a display panel according to the invention;
FIG. 8 is a schematic view of the first pixel region of FIG. 7 with a cathode layer;
fig. 9 is a schematic structural diagram of a display screen according to an embodiment of the present invention after modification of the cathode layer in fig. 8;
FIG. 10 is a schematic structural diagram of an embodiment of a display panel of the present invention with a transparent conductive layer added;
fig. 11 is a schematic structural diagram of another embodiment of the display panel according to the present invention, in which a transparent conductive layer is added.
The reference numbers indicate:
| reference numerals | Name(s) | Reference numerals | Name(s) |
| 100 | |
141 | Strip-shaped |
| 10 | Display screen | 115 | A |
| 11 | |
116 | Second pixel unit |
| 111 | A |
30 | |
| 112 | |
31 | |
| 113 | |
33 | |
| 1131 | |
50 | |
| 1133 | Connecting |
51 | |
| 14 | Transparent conductive layer |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions relating to "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a display screen 10, wherein the display screen 10 can be applied to a terminal 100, so that the screen ratio of the terminal 100 is higher, the area where the display screen 10 is located can be displayed, and the terminal 100 applying the display screen 10 can be truly displayed in a full screen mode.
The terminal 100 may be a mobile device such as a mobile phone and a computer, or may be a game machine, a virtual reality device, an augmented reality device, or an audio and video playing device. The terminal 100 may also be a smart wearable device, such as a smart watch or a smart bracelet.
With reference to fig. 1 and fig. 2, the terminal 100 according to the technical solution of the present invention includes a main body portion and a display screen 10, the main body portion includes a housing 30, the display screen 10 is embedded in the housing 30 and forms a containing cavity with the housing 30, a functional structure (not shown) is disposed in the containing cavity, the display screen 10 is electrically connected to the functional structure to display corresponding functional information, and a user can also perform a functional operation on the terminal 100 by touching the display screen 10.
The housing 30 may specifically include a back plate 31 and a middle frame 33, the display screen 10 and the back plate 31 are disposed opposite to each other, one side of the middle frame 33 is circumferentially connected to the display screen 10, the other side of the middle frame 33 is circumferentially connected to the back plate 31 to form the accommodating cavity, and a power supply module is further disposed in the accommodating cavity to supply power to the terminal 100, and the power supply module is of a chargeable/dischargeable structure.
As shown in fig. 2, the terminal 100 further has a photosensitive device 50 disposed in the receiving cavity, for example: cameras or sensors, etc. When the photosensitive device is a camera, the camera is further divided into a rear camera and a front camera. The light-sensitive part of the rear camera faces the direction of the back plate, and a transparent structure is formed on the back plate corresponding to the rear camera area, namely, the vertical projection of the light-sensitive area of the rear camera on the back plate falls into the area where the transparent structure is located; the photosensitive area of the front camera faces the display screen 10, and the display screen 10 according to the technical scheme of the invention can allow external light to enter the photosensitive area 51 of the front camera through the display screen 10, so that the front camera can have a good shooting effect while the display screen 10 can display in a full screen. When the light-sensing device 50 is a sensor and the light-sensing area 51 of the sensor faces the display screen 10, the light emitted by the sensor can also pass through the display screen 10 to reach the outside, so as to distinguish objects outside the terminal 100.
The display screen 10 according to the technical solution of the present invention may be a Light Emitting Diode (LED) display screen 10, and specifically may be an Organic Light-Emitting Diode (OLED) display screen 10.
The display screen 10 of the present invention includes a panel 11, the panel 11 has a first pixel region 111, and the first pixel region 111 has a plurality of first pixel units 112 at intervals. The display panel 10 emits light under voltage driving, and displays a picture of different colors through a plurality of first pixels.
The panel 11 of the display panel 10 according to the technical solution of the present invention may only have the first pixel area 111, and the display panel 10 displays a picture within the range of the first pixel area 111, and may further set more pixel areas on the panel 11.
In the embodiment shown in fig. 2 and fig. 3, the first pixel region 111 on the display screen 10 is located at the upper portion of the display screen 10, and may be arranged in a stripe shape, when the display screen 10 is applied to the terminal 100, the vertical projection of the light-sensing region 51 of the light-sensing device 50 on the terminal 100 on the display screen 10 falls within the range of the first pixel region 111 (see fig. 2, the projection auxiliary line of the light-sensing region 51 of the light-sensing device 50).
Fig. 4 also shows an embodiment, in which the first pixel region 111 on the display screen 10 is located on the upper portion of the display screen 10, and may be disposed in a circular shape, but in the technical solution of the present invention, the shape of the first pixel region 111 is not limited to a circular shape, and may also be a square shape, a triangular shape, a polygonal shape, or other different structures, and is selectively disposed according to different display requirements. When the display screen 10 is applied to the terminal 100, the shape and size of the first pixel area 111 and the photosensitive area 51 of the photosensitive device 50 on the terminal 100 may be the same, and the vertical projection of the photosensitive device 50 on the display screen 10 just coincides with the range of the first pixel area 111; the range of the first pixel region 111 may be larger than the range of the photosensitive region 51 of the photosensitive device 50 on the terminal 100, and the vertical projection of the photosensitive device 50 on the display screen 10 falls within the range of the first pixel region 111.
In order to make the resolution of the display screen 10 high and the pixel density on the panel 11 large, and the pixel units on the panel 11 can shield light, so that the light transmittance of the display screen 10 is very low, as shown in fig. 6, a cathode layer 113 is further disposed in the display screen 10, and the light transmittance of the cathode layer 113 is very low, so that the light transmittance of the existing display screen 10 is very low, and even the light cannot pass through the display screen 10 to reach the structure below the display screen 10. In the camera technique under the screen, the camera is located the below of display screen 10, for making the camera can normally acquire external light, can set up the trompil on display screen 10 for the light-sensitive portion of camera is located the vertical projection of display screen 10 and falls into the trompil within range. Above-mentioned mode of setting up not only makes on the display screen 10 can not carry out image display in the trompil part, can not realize full screen display and show open pore structure all the time on the display screen 10, causes the influence to the integrality of display screen 10. In order to solve the integrity problem of the display screen 10, the opening area on the display screen 10 may be covered with a transparent material, but the area still cannot be displayed, and the display screen 10 cannot be displayed as a real full screen.
Fig. 7 is an enlarged view of a portion of the structure of the improved display panel 10 in the first pixel region 111 according to the present invention. In the figure, compared with a common high resolution display screen, the density of the first pixel units 112 in the first pixel area 111 on the panel 11 of the display screen 10 according to the present invention is reduced, so that the number of the first pixel units 112 disposed in the first pixel area 111 per unit area is reduced, thereby increasing the interval between two adjacent first pixel units 112 and reducing the shielding of the first pixel units 112 in the first pixel area 111 to light.
When the density of the first pixel units 112 in the first pixel region 111 is reduced, the cathode layer 113 may also have a large influence on the light transmittance of the first pixel region 111 of the panel 11 due to the cathode layer 113. In order to make the display panel 10 have better display efficiency, the material of the cathode layer 113 is selected to be a magnesium-silver alloy, and since the magnesium-silver alloy is opaque, after the first pixel region 111 is covered with the cathode layer 113, the light transmittance of the panel 11 in the first pixel region 111 is lower. As will be understood from fig. 9, the display panel 10 according to the present invention includes a panel 11 and a cathode layer 113, the cathode layer 113 includes a plurality of cathode blocks 1131 and a plurality of connecting bridges 1133, one cathode block 1131 correspondingly covers one first pixel unit 112, one connecting bridge 1133 connects two cathode blocks 1131, and the connecting bridges 1133 can electrically connect the plurality of cathode blocks 1131.
In the embodiment shown in fig. 8, the width of the connecting bridge 1133 connected between two adjacent cathode blocks 1131 needs to be the same as the width of the cathode block 1131 to make the impedance on the cathode layer 113 uniform, and the current density does not change abruptly. As shown in fig. 9, the size of the connecting bridge 1133 is reduced to reduce the area of the cathode layer 113 covered by the portion of the first pixel region 111 of the panel 11 where the first pixel unit 112 is not disposed, so as to improve the light transmittance of the panel 11 in the first pixel region 111. However, when the size of the connecting bridge 1133 is reduced, the resistance on the cathode layer 113 increases, and the current density also increases, which causes abrupt changes in the current density.
With reference to fig. 9 and fig. 10, in the technical solution of the present invention, the width of the connecting bridge 1133 of the cathode layer 113 is smaller than the width of the cathode block 1131, and the transparent conductive layer 14 is additionally arranged in the display screen 10. The transparent conductive layer 14 is deposited on the panel 11 and covers the cathode layer 113, the transparent conductive layer 14 is directly connected to the cathode layer 113, the width of the portion of the transparent conductive layer 14 covering the connecting bridge 1133 is at least greater than the width of the cathode block 1131, that is, the width of the region of the transparent conductive layer 14 corresponding to the connecting bridge 1133 is greater than or equal to the width of the region covering the cathode block 1131. In fig. 10, the x direction and the y direction are shown, the x direction is defined as the width direction of the panel 11, the y direction is defined as the length direction of the panel 11, and accordingly, the x direction is also the width direction of the transparent conductive layer and the cathode layer, and the y direction is also the length direction of the transparent conductive layer and the cathode layer.
The impedance of the cathode layer 113 is equivalent to that of a resistor connected in parallel, so that the impedance at the connection bridge 1133 can be reduced, the increase of the impedance caused by the reduction of the area of the connection bridge 1133 can be avoided, and the occurrence of the current jump phenomenon can be avoided. The transparent conductive layer 14 has a high light transmittance, and after the transparent conductive layer 14 is deposited, the light transmittance of the panel 11 in the first pixel region 111 is less affected.
According to the technical scheme of the invention, the width of the connecting bridge 1133 of the cathode layer 113 can be reduced by adding the transparent conducting layer 14, so that the width of the connecting bridge 1133 is smaller than that of the cathode block 1131, and sudden current density change caused by reducing the width of the connecting bridge 1133 can be avoided, thereby reducing the shielding of the cathode layer 113 on light, and improving the light transmittance of the display screen 10 in the first pixel area 111. The terminal 100 using the display screen 10 includes the photosensitive device 50, the photosensitive area 51 of the photosensitive device 50 falls into the first pixel area 111 in the vertical projection of the display screen 10, and the external light can pass through the display screen 10 and enter the photosensitive area 51 of the photosensitive device 50, so that the terminal 100 having the display screen 10 can perform picture display in each area of the display screen 10, and it is ensured that the photosensitive device 50 obtains the external light through the display screen 10, and has a normal photosensitive function.
The transparent conductive layer 14 of the technical solution of the present invention can be made of Indium Tin Oxide (ITO) material, and the material can make the light transmittance of the transparent conductive layer 14 be more than 90%, so that the first pixel region 111 of the display screen 10 having the transparent conductive layer 14 has a higher light transmittance, and the photosensitive device 50 on the terminal 100 having the display screen 10 has a better photosensitive effect.
For a high resolution product, the width of one pixel unit is about 20 μm to 40 μm, specifically 20 μm, 30 μm or 40 μm, and may be made to be any value within the above range according to different requirements. The cathode layer 113 is required to cover each first pixel, and the width of each cathode block 1131 is at least equal to the width of each first pixel unit 112. In the technical solution of the present invention, the width of the cathode block 1131 is defined as D, and the width of the cathode block 1131 satisfies the following value range, D is greater than or equal to 20 μm and less than or equal to 40 μm, specifically, D may be 20 μm, 30 μm or 40 μm, and may also be made to be any value within the above range corresponding to the size of the first pixel unit 112. The width of the cathode block 1131 is within the above range, which can ensure that the area of the cathode layer 113 is as small as possible, thereby reducing the shielding of the cathode layer 113 to light, and improving the light transmittance of the display screen 10 in the first pixel area 111.
In the technical solution of the present invention, the width of the connecting bridge 1133 is defined as d, and the value of the width of the connecting bridge 1133 satisfies the following range: d is more than or equal to 2 mu m and less than or equal to 5 mu m, can be specifically 2 mu m, 3 mu m, 4 mu m or 5 mu m, and can be made into any value in the range according to different requirements. If the width of the connecting bridge 1133 is greater than 5 μm, the cathode layer 113 shields light of the first pixel region 111 more, so that the light transmittance of the display panel 10 in the first pixel region 111 is lower; if the width of the connecting bridge 1133 is less than 2 μm, the cathode is difficult to process by using the existing process, so the processing cost is high. The width of the connecting bridge 1133 is within the above value range, so that the light transmittance of the display screen 10 in the first pixel region 111 is relatively high, and the cathode layer 113 is easily manufactured and molded.
When the display screen 10 is provided with the transparent conductive layer 14, the cathode blocks 1131 and the connecting bridges 1133 on the cathode layer 113 satisfy the above value ranges, so that the light transmittance of the display screen 10 in the first pixel region 111 can be improved by more than 20%.
In the above embodiment, since the cathode blocks 1131 and the connecting bridges 1133 on the cathode layer 113 have small sizes, the cathode layer 113 is deposited by using a Fine Metal Mask (FMM), so that the formed cathode layer 113 has precise sizes.
Referring to the embodiment shown in fig. 10, the transparent conductive layer 14 covers the entire first pixel region 111. The transparent conductive layer 14 in this embodiment may be deposited by a Common Metal Mask (CMM) with large openings. The display screen 10 of this embodiment is relatively simple to manufacture and has a relatively low manufacturing cost.
Referring to the embodiment shown in fig. 11, the first pixel region 111 is divided into a plurality of stripe-shaped pixel regions, and the stripe-shaped pixel regions are distributed along a stripe shape and arranged side by side at intervals. A plurality of first pixel units 112 are disposed in each strip-shaped pixel region, and the plurality of first pixel units 112 in each strip-shaped pixel region are arranged side by side at intervals along the extending direction of the strip-shaped pixel region. The transparent conductive layer 14 includes a plurality of strip-shaped transparent layers 141 arranged in a strip shape and arranged at intervals, and each strip-shaped transparent layer 141 correspondingly covers a strip-shaped pixel region.
In this embodiment, the area of the transparent conductive layer 14 is reduced, so that the light blockage of the transparent conductive layer 14 on the display screen 10 is reduced, thereby further improving the light transmittance of the display screen 10 in the first pixel region 111. In this embodiment, the width of the transparent conductive layer 14 corresponding to the cathode block 1131 and the width of the transparent conductive layer 14 corresponding to the connecting bridge 1133 may be uniform or non-uniform. When the width of the part of the transparent conductive layer 14 corresponding to the cathode block 1131 is different from the width of the part of the transparent conductive layer 14 corresponding to the connecting bridge 1133, the width of the part of the transparent conductive layer 14 corresponding to the connecting bridge 1133 is greater than that of the part of the transparent conductive layer 14 corresponding to the cathode block 1131, so that the impedance on the cathode layer 113 is smaller and the current density is low; when the width of the portion of the transparent conductive layer 14 corresponding to the cathode block 1131 is the same as the width of the portion of the transparent conductive layer 14 corresponding to the connecting bridge 1133, the light transmittance of the display panel 10 in the first pixel region 111 can be made higher when the impedance of the cathode layer 113 satisfies the use condition.
In the technical solution of the present invention, the panel 11 of the display screen 10 may further have a second pixel area 115, referring back to fig. 2 to fig. 4, the portions of the display screen 10 except the first pixel area 111 may be all set as the second pixel area 115, the second pixel area 115 is provided with a plurality of second pixel units 116, and the arrangement of the second pixel units 116 in the second pixel area 115 may refer to the existing solution shown in fig. 5, that is, may be consistent with the existing high-resolution display screen 10. The panel 11 of the display screen 10 may also have more or less pixel areas, which may be selected according to specific display requirements.
When the panel 11 of the display panel 10 in the technical solution of the present invention includes the first pixel area 111 and the second pixel area 115, the density of the first pixel units 112 disposed in the first pixel area 111 is less than the density of the second pixel units 116 disposed in the second pixel area 115, so that the resolution of the image displayed by the display panel 10 corresponding to the first pixel area 111 is lower than the resolution of the image displayed by the display panel 10 corresponding to the second pixel area 115. After the pixel density of the first pixel region 111 is reduced, the shielding of the first pixel unit 112 on the first pixel region 111 from the light is correspondingly reduced. Specifically, the pixel density of the first pixel region 111 may be one half to one quarter of the pixel density of the second pixel region 115, so that the light transmittance of the first pixel region 111 of the display screen 10 is greatly improved as compared with the light transmittance of the second pixel region 115.
When the terminal 100 is a mobile phone, the first pixel region 111 may be located above the second pixel region 115, the first pixel region 111 may be disposed in a stripe shape, and an extension length of the first pixel region 111 is identical to an extension length of the second pixel region 115 in a width direction of the mobile phone. The position of the display screen 10 corresponding to the first pixel region 111 can be used for displaying information prompts of a network operator, a network signal, the power of a mobile phone, a background program, and the like. Since the resolution required by the display screen 10 for the image of the information displayed in the first pixel region 111 is not high, a clear display can be performed even when the resolution of the first pixel region 111 is low. The vertical projection of the light-sensing area 51 of the light-sensing device 50 on the terminal 100 on the display screen 10 falls into the first pixel area 111, that is, the vertical projection of the light-sensing area 51 of the light-sensing device 50 on the display screen 10 falls into the first pixel area 111, so that the light-sensing device 50 on the terminal 100 can obtain external light through the display screen 10, and the usability of the light-sensing device 50 is better.
The first pixel region 111 may also be located below or on a side of the second pixel region 115, and in the technical solution of the present invention, the relative positions of the first pixel region 111 and the second pixel region 115 are not limited, and may be selected according to specific use requirements. A plurality of first pixel regions 111 may also be disposed on the display screen 10 to transmit light to different light sensing devices 50 on the terminal 100.
The portion of the display screen 10 corresponding to the second pixel area 115 is a main information display area, which can realize high resolution display to meet the user's requirement for the display screen 10.
The first pixel region 111 may also be square, circular, triangular, etc. or have any irregular shape. The first pixel region 111 may also be disposed only corresponding to the photosensitive region 51 of the photosensitive device 50, so that the region of the display screen 10 outside the first pixel region 111 is set as the second pixel region 115, thereby increasing the area of the second pixel region 115 on the display screen 10 and increasing the region of the display screen 10 with high resolution.
The panel 11 on the display screen 10 may be a glass panel 11, the glass panel 11 is sequentially provided with an anode layer, an organic layer and a cathode layer 113, and the technical solution of the present invention is to fabricate and form a transparent conductive layer 14 after the cathode layer 113 is fabricated. The organic layer shown above may include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and the like, which are sequentially deposited. In addition to the above layers, the display screen 10 may include one or more of the following layers, depending on various requirements: pixel isolation post layer, transistor layer, touch sensor layer, polaroid and protective layer.
The present invention further provides a terminal 100, where the terminal 100 includes a main body portion and a display screen 10, and the specific structure of the display screen 10 refers to the foregoing embodiments, and since the terminal 100 adopts all technical solutions of all the foregoing embodiments, at least all beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and details are not repeated here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A display screen, comprising:
the display panel comprises a panel, a first pixel area and a second pixel area, wherein the panel is provided with the first pixel area which is provided with a plurality of spaced first pixel units;
the cathode layer comprises a plurality of cathode blocks and a plurality of connecting bridges, one cathode block correspondingly covers one first pixel unit, one connecting bridge is connected with two cathode blocks so as to electrically conduct the plurality of cathode blocks, and the width of the connecting bridge is smaller than that of the cathode blocks; and
a transparent conductive layer covering at least the cathode block and the connection bridge and connected to the cathode layer; the width of the area, covered by the transparent conducting layer, of the connecting bridge is larger than that of the area, covered by the cathode block.
2. The display screen of claim 1, wherein the width of the connecting bridge is d, 2 μm ≦ d ≦ 5 μm.
3. A display screen as recited in claim 1, wherein the cathode blocks have a width that corresponds with a width of the first pixel cell.
4. A display screen as recited in claim 3, wherein the cathode blocks have a width D, 20 μm D40 μm.
5. A screen as claimed in claim 1, characterized in that the cathode layer is produced by means of fine metal mask evaporation to form the cathode blocks and the connecting bridges.
6. The display screen of claim 1, wherein the material of the transparent conductive layer is indium tin oxide.
7. A display screen in accordance with any one of claims 1 to 6, wherein the transparent conductive layer covers the entire first pixel area.
8. The display screen according to any one of claims 1 to 6, wherein the first pixel region comprises a plurality of strip-shaped pixel regions which are distributed along a strip shape and are arranged side by side at intervals, a plurality of first pixel units are arranged in each strip-shaped pixel region, a plurality of first pixel units in each strip-shaped pixel region are arranged side by side at intervals along the extending direction of the strip-shaped pixel region, and the connecting bridge is connected between every two adjacent first pixel units;
the transparent conducting layer comprises a plurality of strip-shaped transparent layers which are arranged in a strip shape and are arranged at intervals, and one strip-shaped transparent layer correspondingly covers one strip-shaped pixel area.
9. A display screen as recited in claim 8, wherein the width of the stripe shaped transparent layer is substantially the same as the width of the first pixel cell.
10. A display screen as recited in any one of claims 1-6, wherein the panel further has a second pixel area, the second pixel area having a plurality of second pixel cells;
the density of the first pixel units arranged in the first pixel area is smaller than that of the second pixel units arranged in the second pixel area.
11. A terminal, characterized in that the terminal comprises a main body part and a display screen according to any one of claims 1 to 10, the display screen is connected to the main body part and can display and control functions of the main body part.
12. The terminal of claim 11, further comprising a light sensing device disposed on the main body portion, wherein a vertical projection of a light sensing area of the light sensing device onto the display screen falls within the first pixel region.
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| CN202010998281.XA CN112151584B (en) | 2020-09-21 | 2020-09-21 | Display screen and terminal |
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| CN202010998281.XA CN112151584B (en) | 2020-09-21 | 2020-09-21 | Display screen and terminal |
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| CN112864217B (en) * | 2021-04-02 | 2024-01-16 | 维沃移动通信有限公司 | Display panel and electronic device |
| CN113571664B (en) * | 2021-07-22 | 2023-11-21 | 武汉天马微电子有限公司 | Display panel, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10084150B1 (en) * | 2017-05-23 | 2018-09-25 | Shanhai Tianma Micro-Electronic Co., Ltd. | Transparent OLED panel and display device |
| CN110611037A (en) * | 2018-06-14 | 2019-12-24 | 乐金显示有限公司 | Display device and method for manufacturing the same |
| CN110808263A (en) * | 2018-08-06 | 2020-02-18 | 云谷（固安）科技有限公司 | Display panel, display screen and display terminal |
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| KR101084245B1 (en) * | 2010-01-04 | 2011-11-16 | 삼성모바일디스플레이주식회사 | Display device |
| KR102551867B1 (en) * | 2018-05-29 | 2023-07-05 | 엘지디스플레이 주식회사 | Display Device |
| CN108866476B (en) * | 2018-06-29 | 2020-03-10 | 京东方科技集团股份有限公司 | Mask plate, manufacturing method thereof, evaporation method and display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10084150B1 (en) * | 2017-05-23 | 2018-09-25 | Shanhai Tianma Micro-Electronic Co., Ltd. | Transparent OLED panel and display device |
| CN110611037A (en) * | 2018-06-14 | 2019-12-24 | 乐金显示有限公司 | Display device and method for manufacturing the same |
| CN110808263A (en) * | 2018-08-06 | 2020-02-18 | 云谷（固安）科技有限公司 | Display panel, display screen and display terminal |
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