CN109300942B - Display panel and display device having the same - Google Patents
Display panel and display device having the same Download PDFInfo
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- CN109300942B CN109300942B CN201811066741.4A CN201811066741A CN109300942B CN 109300942 B CN109300942 B CN 109300942B CN 201811066741 A CN201811066741 A CN 201811066741A CN 109300942 B CN109300942 B CN 109300942B
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
Abstract
The application relates to the field of terminals, in particular to a display panel and a display device with the same, which are used for relieving the problem that the overall appearance of electronic equipment is influenced by the fact that a light sensing module is visible under strong light in the prior art. The display panel includes: a display layer; the photosensitive module is positioned on the inner side of the display layer; an optical barrier layer disposed between the display layer and the photosensitive module; the optical barrier layer is used for reducing the intensity of light rays emitted from the display layer to the photosensitive module and/or the intensity of light rays reflected by the photosensitive module to the display layer. The optical barrier layer in this application can reduce from the light intensity of display layer directive photosensitive module and/or by the light intensity of photosensitive module reflection to the display layer to make the light of each regional reflection of display panel unanimous basically, reduce the visibility of photosensitive module of display layer below, thereby alleviate the visible problem of photosensitive module, promote the whole outward appearance effect of electronic equipment.
Description
Technical Field
The application relates to the field of terminals, in particular to a display panel and a display device with the same.
Background
In the existing electronic field, the photosensitive module of some display devices is disposed below the display screen, which is helpful to further increase the screen ratio of the display device.
However, in a display device with the photosensitive module under the screen, in a strong light environment, a user can see the outline of the photosensitive module under the screen through the display screen, and the overall aesthetic property of the display device is affected.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device with the same, and the display panel and the display device are used for relieving the problem that in the prior art, an optical sensing module is visible under strong light and affects the overall appearance of electronic equipment.
The embodiment of the application adopts the following technical scheme:
in a first aspect, a display panel is provided, including:
a display layer;
the photosensitive module is positioned on the inner side of the display layer;
an optical barrier layer disposed between the display layer and the photosensitive module;
the optical barrier layer is used for reducing the intensity of light rays emitted to the photosensitive module from the display layer and/or the intensity of light rays reflected to the display layer by the photosensitive module.
In a second aspect, there is provided a display device comprising: the display panel of any of the above.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
this application sets up optical barrier layer between display layer and sensitization module for reduce from the light intensity of display layer directive sensitization module and/or by the light intensity of sensitization module reflection to the display layer, thereby make the light of each regional reflection of display panel unanimous basically, can reduce the visibility of sensitization module of display layer below, thereby alleviate the visible problem of sensitization module, promote the whole outward appearance effect of electronic equipment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel provided in the present application;
fig. 3 is a second schematic structural diagram of a display panel provided in the present application;
fig. 4 is a third schematic structural diagram of a display panel according to the present application;
fig. 5 is a fourth schematic structural diagram of a display panel provided in the present application;
FIG. 6 is a schematic view of the optical path of a multilayer enhanced reflective optical film provided herein;
fig. 7 is a fifth schematic structural view of a display panel provided in the present application;
fig. 8 is a sixth schematic structural view of a display panel provided in the present application;
fig. 9 is a schematic diagram of a hardware structure of a mobile terminal according to the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.
In the prior art, the fingerprint identification module is usually located inside the display layer in the display panel, and fig. 1 is a schematic structural diagram of the display panel in the prior art, where the display panel includes a glass Cover plate 11(Cover glass), a display layer 12, a buffer layer 13, and a fingerprint identification module 14, and an air layer 15 is sandwiched between the display layer 12 and the fingerprint identification module 14. Under the existing display film layer structure, the incident light L from the outside1It is incident on the upper surface (shown by the bold line) of the fingerprint recognition module 14, and the incident light is reflected on the surface, and part of the light is L2Which is shown reflected back to the outside world. In the state of the electronic device shielding, for example, sunlight enters the electronic device along the incident light track shown in the figure, is reflected on the surface of the fingerprint identification module 14, and exits to the user along the reflected light track. Because the reflected light of the area where the fingerprint identification module is located is stronger than the reflected light of other areas of the display panel, a user can see that the area where the fingerprint identification module is located is brighter than other areas of the display panel, so that the appearance consistency of the display panel is poor.
The display panel provided by the application can be applied to various electronic devices, especially portable electronic devices, such as: cell-phone, panel computer, smart watch etc.. The application provides a display panel can alleviate the problem that fingerprint identification module is visible under the highlight in prior art, and then promotes the holistic outward appearance of electronic equipment, makes the display screen bright screen with feel each regional display effect the same basically under the state of screen, promotes electronic equipment's wholeness. The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Example one
The present application provides a display panel, as shown in fig. 2, including:
a display layer 21;
a photosensitive module 22 located inside the display layer 21;
an optical barrier layer 23 provided between the display layer 21 and the photosensitive module 22;
the optical barrier 23 is used to reduce the intensity of light emitted from the display layer 21 to the photosensitive module 22 and/or the intensity of light reflected by the photosensitive module 22 to the display layer 21.
That is to say, the optical barrier layer 23 may be used to reduce the intensity of light emitted from the display layer 21 to the photosensitive module 22, and the light is affected by the optical barrier layer 23 in the process of transmitting the light from the display layer 21 to the photosensitive module 22, so that the light reflected by the photosensitive module 22 to the outside is weaker, and the visibility of the photosensitive module 22 may be reduced; or, the optical barrier layer 23 may be used to reduce the intensity of light reflected by the photosensitive module 22 to the display layer 21, and after reaching the photosensitive module 22, external light is reflected by the photosensitive module 22 to the display layer 21, and in the reflection process, the light intensity is weakened under the action of the optical barrier layer 23, so that the light reflected by the photosensitive module 22 to the outside is weaker, and the visibility of the photosensitive module 22 can be reduced; still alternatively, the optical blocking layer 23 may reduce the intensity of light reflected from the photosensitive module 22 toward the display layer 21 while reducing the intensity of light emitted from the display layer 21 toward the photosensitive module 22, so that the visibility of the photosensitive module 22 may be effectively reduced by combining the above two structures.
In the following, a mobile phone is taken as an example, and the sensing module 22 in this embodiment may be a fingerprint identification module. The display layer 21 may be a composite film layer having a display function, and specifically, the display layer 21 may be a display layer formed using an organic electroluminescent diode. Among them, the Organic Light-Emitting Diode (OLED) is also called as Organic electroluminescent display and Organic Light-Emitting semiconductor, the OLED display layer has the advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, high reaction speed, etc., and the thickness of the OLED display layer is thinner than that of the general liquid crystal display layer, which is beneficial to improving the overall integration of electronic equipment on the premise of ensuring the display performance.
Specifically, the OLED display layer may be an Active-matrix organic light emitting diode (AMOLED), which may also be referred to as an Active-matrix organic light emitting diode (AMOLED), where the AMOLED mainly includes a polarizer, an upper glass (Encap), an organic light emitting layer, and a lower glass (TFT), which are stacked in sequence, the polarizer is located outside the mobile phone, and the lower glass is located inside the mobile phone and close to the light sensing module. The display layer with better light transmission is beneficial to improving the identification accuracy of the light sensing module in the display layer.
In the mobile phone, a side close to the inside of the mobile phone is an inner side, a side close to the outside of the mobile phone, that is, a side where a user can perform a touch operation is an outer side, and the photosensitive module 22 is located on the inner side of the display layer 21. For example, when the photosensitive module 22 is a fingerprint identification module, the fingerprint identification module can be an electro-optical fingerprint identification module. The photoelectric fingerprint identification technology realizes fingerprint identification by utilizing a photoelectric conversion principle. In the identification process, the user utilizes finger touch fingerprint identification module place region, the light that sends by the display layer this moment reachs user's finger surface, behind the finger fingerprint reflection, the light that includes the fingerprint characteristic pierces through the display layer and reachs fingerprint identification module surface, receive the light signal that includes the fingerprint characteristic by the inside optical sensor of fingerprint identification module, then turn into the signal of telecommunication with the light signal, the signal of telecommunication that will include the fingerprint characteristic again compares with the fingerprint information of the inside storage of cell-phone, and then realize user's fingerprint identification.
In the solution provided in the present application, an optical barrier layer 23 is interposed between the photosensitive module 22 and the display layer 21, and the optical barrier layer 23 is used for reducing the intensity of light rays emitted from the display layer 21 to the photosensitive module 22 and/or the intensity of light rays reflected by the photosensitive module 22 to the display layer 21. Present photosensitive module 22 is close to a display layer 21 surface reflection light's ability stronger, optics barrier layer 23 in the application is located between photosensitive module 22 and the display layer 21, take place the reflection when external light incides to photosensitive module 22 outside surface, the reverberation need pass through optics barrier layer 23 and can reach display layer 21 and then jet out the cell-phone and seen by the user, and optics barrier layer 23 in the application can reduce from display layer 21 to photosensitive module 22's light intensity and/or by photosensitive module 22 reflection to display layer 21's light intensity, thereby make each regional reflective light of display panel unanimous basically, reduce the visibility of the photosensitive module of display layer below, thereby alleviate the visible problem of photosensitive module, promote the whole outward appearance effect of electronic equipment.
Example two
Based on the solution of the above embodiment, as shown in fig. 3, the embodiment of the present application further provides a better display panel, and the optical barrier layer includes at least one optical film (in the illustration, the optical film 231 and the optical film 232), and an orthogonal projection N of the optical film on the plane of the display layer 21 is located in a range of an orthogonal projection M of the photosensitive module 22 on the plane of the display layer 21.
The optical barrier shown in fig. 3 includes a first optical film 231 adjacent to the display layer and a second optical film 232 adjacent to the photosensitive module, and the materials and structures of the two optical films may be the same or different.
Under the general condition, the laminating of sensitization module is inboard at the display layer, if directly with the lower glass surface of sensitization module laminating at the display layer, then can cause certain damage to lower glass, consequently, the display layer glass inboard often is provided with one deck buffer film down. In the production process, when the sensitization module is fingerprint identification module, with fingerprint identification module laminating on this buffer film, and then fixed fingerprint identification module and display layer, in order to improve fingerprint identification's exactness, often get rid of the regional part buffer film in fingerprint identification module place in the production process, see fig. 2, the buffer film is shown by the shade in the picture, the glass laminating under this buffer film outside and the display layer, inboard and fingerprint identification module's border laminating.
In the process of fingerprint identification, the central area of the fingerprint identification module, which is not in contact with the buffer film, is used for receiving optical signals containing fingerprint characteristics, and then the optical signals are converted into electric signals, and the fingerprint identification is realized by comparing the electric signals. The orthographic projection of the optical film on the plane of the display layer is located in the range of the orthographic projection of the fingerprint identification module on the plane of the display layer, and the optical film is preferably covered on the central area, which is not contacted with the buffer film, of the fingerprint identification module. In the region of fingerprint identification module and the laminating of buffer film, because the buffer film light transmissivity is poor, consequently the external light of kicking into display panel is difficult to reach fingerprint identification module surface, does not have the condition of high reflection of light.
The technical scheme that this application provided can reduce sensitization module surface reflection light's intensity, moreover, because the blooming is located sensitization module at the planar orthographic projection's in display layer within range of the planar orthographic projection in display layer place, so, the blooming in this application can not increase the whole thickness of display panel, helps reducing the whole thickness of display panel, improves the whole integrated nature of electronic equipment.
For the optical barrier layer in the embodiments of the present application, at least the following implementations can be adopted:
the structure I is as follows:
as shown in fig. 4, the optical barrier layer of the above embodiment includes: antireflection optical film 41, antireflection optical film 41 is provided between display layer 21 and photosensitive module 22.
The thickness of antireflection optical film 41 shown in the figure is smaller than the distance between photosensitive module 22 and display layer 21, so that an air layer 42 is further sandwiched between display layer 21 and antireflection optical film 41, actually, the thickness of antireflection optical film 41 may be adjusted according to actual production requirements, and the thickness of antireflection optical film 41 may also be the same as the distance between photosensitive module 22 and display layer 21, that is, the outer side of antireflection optical film 41 contacts display layer 21, and the inner side contacts photosensitive module 22. The antireflection optical film provided by the embodiment of the application can also be called as an antireflection film, and can effectively reduce the reflection of light and increase the transmittance of the light.
Preferably, the anti-reflection optics are disposed on the surface of the photosensitive module. In the production process, the antireflection optical film is often produced on the surface of the support, and the produced antireflection optical film has an appropriate thickness and a refractive index lower than that of the support. The antireflection optical film may be a single-layer film or a composite film formed by laminating a plurality of films. For single layer antireflection optical films, materials with as low a refractive index as possible may be used, and the refractive index of the film layer may be adjusted during production primarily by the addition of low refractive index fluorochemical or fluoroacrylate polymers or prepolymers to the film layer, and useful low refractive index materials include, but are not limited to: the refractive index of the fluorine-containing polymer is generally 1.3-1.5.
When external environment light enters the display layer and reaches the surface of the photosensitive module, most incident light can be prevented from being reflected on the surface by the anti-reflection optical film, and only a small amount of incident light is reflected on the surface of the photosensitive module. Therefore, the brightness of the area where the photosensitive module is located is basically consistent with the brightness of other areas of the display panel, and the photosensitive module is not easy to see in a strong light environment. The application provides a technical scheme is provided with anti-reflection optical film on a surface that sensitization module is close to the display layer, and the light that enables to penetrate into display panel increases the quantity of the light that transmits to sensitization module, reduces the intensity that sensitization module is close to display layer surface reflection light to make each regional reflected light of display panel unanimous basically, reduce the visibility of sensitization module of display layer below, thereby alleviate the visible problem of sensitization module, improve display panel outward appearance wholeness.
The structure II is as follows:
as shown in fig. 5, the optical barrier layer of the above embodiment includes: a reflection enhancing optical film 51, the reflection enhancing optical film 51 being disposed between the display layer 21 and the photosensitive module 22.
The thickness of the reflection enhancing optical film 51 shown in the figure is smaller than the distance between the photosensitive module 22 and the display layer 21, so that an air layer 52 is further sandwiched between the display layer 21 and the reflection enhancing optical film 51, actually, the thickness of the reflection enhancing optical film 51 can be adjusted according to actual production requirements, and the thickness of the reflection enhancing optical film 51 can also be the same as the distance between the photosensitive module 22 and the display layer 21, that is, the outer side of the reflection enhancing optical film 51 is in contact with the display layer 21, and the inner side is in contact with the photosensitive module 22. The reflection increasing optical film in the scheme of the application can also be called as a high reflection film, has the effect of increasing reflected light for incident light, and can improve the overall brightness of the display panel.
Preferably, the reflection enhancing optical film is disposed on the surface of the display layer. In the production process, the reflection-enhancing optical film is often generated on the basis of the surface of the support, and the generated reflection-enhancing optical film has a suitable thickness and a higher refractive index than the support. The reflection increasing optical film can be a single-layer film or a composite film formed by laminating a plurality of films. For a single layer antireflection optical film, a material with the highest refractive index can be used, and in production, the antireflection optical film can increase the refractive index of the film layer by doping inorganic nano-oxide, and the nano-oxide for increasing the refractive index includes but is not limited to: titanium oxide, cobalt oxide, antimony oxide, Indium Tin Oxide (ITO), aluminum-doped zinc oxide (AZO), and the like, and the refractive index of these oxides is generally between 1.9 and 2.4.
In this application, should increase optical film and set up at the display layer inboardly, be close to the surface of sensitization module in the display layer promptly, inject into from the external world when light, reach sensitization module outside surface after, increase optical film and can play the hindrance effect to the light that reflects to the display layer, reduce the intensity of reflecting to the light of display layer, avoid reflecting too much light by sensitization module and lead to the bright problem of display panel in sensitization module place region. The scheme ensures that the light reflected by each area of the display panel is basically consistent, and the appearance integrity of the display panel is improved.
For a single-layer reflection-increasing optical film, preferably, the reflection-increasing optical film is a single-layer indium tin oxide film or a single-layer aluminum-doped zinc oxide film.
Because the refractive indexes of the indium tin oxide and the aluminum-doped zinc oxide are both larger than that of glass, the light transmittance is better, and the vertically incident light can better penetrate through the reflection-increasing optical film made of the indium tin oxide or the aluminum-doped zinc oxide, so that the reflection-increasing optical film made of the indium tin oxide or the aluminum-doped zinc oxide has smaller obstruction on optical signals containing fingerprint characteristics, the fingerprint identification function in the display panel can be ensured not to be influenced by the reflection-increasing optical film to a certain extent, and the display panel has better fingerprint identification function and better appearance integrity.
For multilayer retroreflective optical films, preferably, the retroreflective optical film comprises:
at least one low refractive index dielectric layer and at least one high refractive index dielectric layer;
at least one low-refractive-index dielectric layer and at least one high-refractive-index dielectric layer are alternately arranged.
The reflection-increasing optical film provided by the application is shown in fig. 6, which shows a reflection-increasing optical film comprising 4 dielectric layers, and a first high refractive index dielectric layer H is arranged from top to bottom in sequence1A first low refractive index dielectric layer L1A second high refractive index dielectric layer H2A second low refractive index dielectric layer L2A third high refractive index medium layer H3. Wherein the first high refractive index medium layer H1A third high refractive index medium layer H in contact with the display layer3Close to the photosensitive module. In the reflection increasing optical film, the medium layers with high refractive index and low refractive index are alternately arranged, under the structure, external light enters the outer side of the photosensitive module, and when reflected light is emitted to the reflection increasing optical film from the photosensitive module, the light path is as shown in fig. 6.
The light path such as a from the light reflected from the outside of the photosensitive module to the reflection increasing optical film1Shown in the third high refractive index medium layer H3And a second low refractive index dielectric layer L2At the boundary of (a), light ray a1Middle part light edge b1Reflected back to the photosensitive module, part of the light is along a2Into a second low index dielectric layer L2. Then, a second low refractive index medium layer L is formed2And a second high refractive index dielectric layer H2At the boundary of (a), part of the light ray is along b2The light is reflected back to the photosensitive module, and part of the light is along a3Into a second high refractive index dielectric layer H2. Similarly, in the first low refractive index medium layer L1And a second high refractive index dielectric layer H2And a first high refractive index medium layer H1And a first low refractive index dielectric layer L1Contact surface of, light ray a3Is divided into refracted rays a4And reflected light b3Light ray a4Partially reflected light rays such as b4As shown.
Finally, only less light penetrates through the reflection increasing optical film to reach the outside, it is thus visible, to the light reflected by the surface outside the photosensitive module, the reflection increasing optical film with the multilayer composite structure in the application can reduce the quantity of the light of emitting, make most light turn back to the photosensitive module direction, make the reflection degree of the region of photosensitive module place in the display panel and other regions of display panel to outside light the same basically from this, avoid the bright condition in the region of photosensitive module place under the screen state of breathing, promote display panel appearance integrity.
Based on the display panel of the above embodiment, for the reflection-enhanced optical film having the multilayer composite structure, the refractive index of the low-refractive-index dielectric layer is greater than or equal to 1.3 and less than or equal to 1.5, and the refractive index of the high-refractive-index dielectric layer is greater than or equal to 1.9 and less than or equal to 2.4.
Referring to fig. 6, preferably, the outermost layer of the reflection enhancing optical film adjacent to the display layer and the innermost layer adjacent to the photosensitive module are high refractive index medium layers, and since the refractive index of air is about 1, the refractive index of glass is about 1.5. In addition, when the light enters the light-sparse medium from the light-dense medium, part of the light can be totally reflected, and the totally reflected light is totally reflected to the inner side and cannot emit out of the high-refractive-index medium layer. Therefore, when light enters the reflection increasing optical film from the outer side of the photosensitive module, part of the light is totally reflected between the high refractive index medium layer and the low refractive index medium layer and is blocked, when the light which is not blocked reaches the interface of the other high refractive index medium layer and the low refractive index medium layer, part of pipelines are blocked, and in the reflection increasing optical film, the more medium layers with alternately arranged high and low refractive indexes are, the more light is blocked. The higher the refractive index of the high-refractive-index medium layer is, the better the blocking effect is.
The application provides a technical scheme can improve and increase reflection of light optical film to the reflection effect of light, and then at the in-process that light jetted into display panel from the external world, reduces the light intensity that reachs the sensing module surface. In addition, in the process that light is reflected to the outside from the surface of the photosensitive module, the reflection increasing optical film enables most of light to be turned back to the direction of the photosensitive module, and the light intensity of the light emitted to the display layer is reduced, so that the reflection degree of the region where the photosensitive module is located in the display panel and the reflection degree of other regions of the display panel to the outside light are basically the same, the situation that the region where the photosensitive module is located is brighter in a screen-touching state is avoided, and the appearance integrity of the display panel is improved.
Preferably, in combination with the first structure and the second structure, the scheme provided by the application further includes the following structures:
the structure is three:
as shown in fig. 7, the present application provides a display panel in which an optical barrier layer includes:
antireflection optical film 72, antireflection optical film 72 is arranged between display layer 21 and photosensitive module 22, and antireflection optical film 72 is arranged on the surface of photosensitive module 22;
the reflection increasing optical film 71, the reflection increasing optical film 71 is arranged between the display layer 21 and the photosensitive module 22, and the reflection increasing optical film 71 is arranged on the surface of the display layer 21.
The optical barrier layer may include both the reflection increasing optical film 71 and the reflection reducing optical film 72, so that light entering the display panel is doubly blocked by the reflection increasing optical film 71 and the reflection reducing optical film 72, thereby further reducing light emitted from the outside of the photosensitive module 22, making the reflection performance of each region of the display panel substantially consistent, and improving the integrity of the appearance of the display panel.
The scheme effectively combines the two structures together, can inhibit part of external incident light from reflecting on the surface of the photosensitive module, and can block most of reflected light between the reflection-increasing optical film and the glass under the reflection-increasing optical film and the display layer, so that the intensity of the reflected light reaching the outside through the display layer is reduced to a greater extent, the amount of the reflected light of the photosensitive module is reduced, the intensity of the reflected light of the photosensitive module in an area is similar to that of the reflected light of other areas under a strong light environment, the photosensitive module is almost invisible, and the defect that the photosensitive module is visible under a screen under the strong light environment is effectively overcome.
As shown in fig. 7, based on the display panel of the above embodiment, the optical barrier layer further includes:
an air film 73 in contact with one surface of the optical film;
the orthographic projection of the air film on the plane of the display layer 21 is within the range of the orthographic projection of the photosensitive module 22 on the plane of the display layer 21.
The display panels of the first structure, the second structure, and the third structure each include an air film, and the structure shown in fig. 7 is used for explanation, and an air gap is provided between the antireflection optical film and the reflection increasing optical film. When the photosensitive module is a fingerprint identification module, in the process of fingerprint identification, the surface of a finger pressed on the display panel is substantially parallel to the surface of the outer side of the fingerprint identification module, light emitted from the display layer 21 is reflected to the surface of the outer side of the photosensitive module 22 on the surface of the finger, and an optical signal carrying fingerprint information is reflected back to the photosensitive module 22 in a substantially vertical direction. Compared with an optical film in the optical barrier layer, the air film has small obstruction to the optical signal carrying the fingerprint characteristics, can ensure the accuracy of fingerprint identification to a certain extent, and relieves the influence of the optical film on the optical signal containing the fingerprint characteristics.
Based on the display panel of the above embodiment, the optical barrier layer further includes:
the buffer film 24 is arranged on the inner side of the display layer, an opening is formed in the buffer film 24, the optical barrier layer is arranged at the opening, and the orthographic projection of the opening on the plane where the display layer 21 is located in the orthographic projection range of the photosensitive module 22 on the plane where the display layer 21 is located.
The orthographic projection of the left buffer film in the optical barrier layer on the plane of the display layer is S1The orthographic projection of the right buffer film on the plane of the display layer is S2The orthographic projection of the fingerprint identification module on the plane where the display layer is located is M, and the orthographic projection M and the orthographic projection S of the buffer film1And S2The overlapping region of (A) is O shown in the figure1And O2. The buffer layer is used for combining the photosensitive module 22 and the display layer 21 into a whole, and in the production process, a layer of buffer film is firstly arranged on the inner side of the display layer, then the buffer film in the area where the optical film is located is removed, then the optical film is arranged, and finally the fingerprint identification module is attached to a preset position. Wherein, the area for attaching the fingerprint identification module is the area where the orthographic projection of the buffer film is overlapped with the orthographic projection of the fingerprint identification module, and the buffer film in the area can be connectedConnect the effect, and the inboard glass of protection display layer, avoid the display layer to be damaged when laminating fingerprint identification module.
In addition, in the above process of producing the display panel, when the optical film is provided, if the display panel includes both an anti-reflection optical film and a reflection increasing optical film, the anti-reflection optical film is provided on the outer surface of the photosensitive module, and the reflection increasing optical film is provided on the inner surface of the display layer.
This application sets up the optical barrier layer between display layer and sensitization module for reduce from the light intensity of display layer directive sensitization module and by the light intensity of sensitization module reflection to the display layer, thereby reduce sensitization module reflection to external light intensity under the highlight environment, make each regional reflective light of display panel unanimous basically, reduce the visibility of sensitization module of display layer below, thereby alleviate the visible problem of sensitization module, promote the whole outward appearance effect of electronic equipment.
EXAMPLE III
In view of the above problems in the prior art, the present application provides a display device including any one of the display panels in the above embodiments.
The display device may further include a frame for holding the form of the display panel, and a driving member for driving the display layer and the photosensitive module, and the driving member may include an electronic module such as a chip.
This application sets up optical barrier layer between display layer and sensitization module for reduce from the light intensity of display layer directive sensitization module and/or by the light intensity of sensitization module reflection to the display layer, thereby make the light of each regional reflection of display panel unanimous basically, can reduce the visibility of sensitization module of display layer below, thereby alleviate the visible problem of sensitization module, promote the whole outward appearance effect of electronic equipment.
The scheme provides a feasible solution for the defect that the photosensitive module under the screen is visible in a strong light environment, can be applied to smart phone equipment, can be used in the fields of various electronic products such as a notebook computer and a tablet computer adopting the fingerprint unlocking scheme under the screen, and is within the protection range of the scheme as long as the electronic equipment utilizing the fingerprint unlocking scheme under the AMOLED screen is adopted.
Example four
Fig. 9 is a schematic diagram of a hardware structure of a mobile terminal provided in the present invention, where the mobile terminal 900 includes, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, and a power supply 911. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 9 is not intended to be limiting of mobile terminals, and that a mobile terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
This application sets up optical barrier layer between display layer and sensitization module for reduce from the light intensity of display layer directive sensitization module and/or by the light intensity of sensitization module reflection to the display layer, thereby make the light of each regional reflection of display panel unanimous basically, can reduce the visibility of sensitization module of display layer below, thereby alleviate the visible problem of sensitization module, promote the whole outward appearance effect of electronic equipment.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 901 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 910; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 901 can also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access via the network module 902, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 903 may convert audio data received by the radio frequency unit 901 or the network module 902 or stored in the memory 909 into an audio signal and output as sound. Also, the audio output unit 903 may also provide audio output related to a specific function performed by the mobile terminal 900 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 903 includes a speaker, a buzzer, a receiver, and the like.
The input unit 904 is used to receive audio or video signals. The input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics processor 9041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 906. The image frames processed by the graphic processor 9041 may be stored in the memory 909 (or other storage medium) or transmitted via the radio frequency unit 901 or the network module 902. The microphone 9042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 901 in case of the phone call mode.
The mobile terminal 900 also includes at least one sensor 905, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 9061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 9061 and/or backlight when the mobile terminal 900 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 905 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.
The display unit 906 is used to display information input by the user or information provided to the user. The Display unit 906 may include a Display panel 9061, and the Display panel 9061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 907 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 9071 (e.g., operations by a user on or near the touch panel 9071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 9071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 910, receives a command from the processor 910, and executes the command. In addition, the touch panel 9071 may be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 907 may include other input devices 9072 in addition to the touch panel 9071. Specifically, the other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, and the like), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 9071 may be overlaid on the display panel 9061, and when the touch panel 9071 detects a touch operation on or near the touch panel 9071, the touch panel is transmitted to the processor 910 to determine the type of the touch event, and then the processor 910 provides a corresponding visual output on the display panel 9061 according to the type of the touch event. Although in fig. 9, the touch panel 9071 and the display panel 9061 are two independent components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 9071 and the display panel 9061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 908 is an interface through which an external device is connected to the mobile terminal 900. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 908 may be used to receive input from external devices (e.g., data information, power, etc.) and transmit the received input to one or more elements within the mobile terminal 900 or may be used to transmit data between the mobile terminal 900 and external devices.
The memory 909 may be used to store software programs as well as various data. The memory 909 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 909 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 910 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 909 and calling data stored in the memory 909, thereby performing overall monitoring of the mobile terminal. Processor 910 may include one or more processing units; preferably, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 910.
The mobile terminal 900 may also include a power supply 911 (e.g., a battery) for powering the various components, and preferably, the power supply 911 is logically connected to the processor 910 through a power management system that provides power management functions to manage charging, discharging, and power consumption.
In addition, the mobile terminal 900 includes some functional modules that are not shown, and thus will not be described in detail herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A display panel, comprising:
a display layer;
the photosensitive module is positioned on the inner side of the display layer;
an optical barrier layer disposed between the display layer and the photosensitive module;
the optical barrier layer comprises an anti-reflection optical film and/or a reflection increasing optical film, the anti-reflection optical film is used for reducing the reflection of incident light rays on the surface of the photosensitive module, and the reflection increasing optical film is used for blocking the light rays reflected to the display layer from the surface of the photosensitive module;
the reflection-increasing optical film is arranged on the surface of the display layer.
2. The display panel of claim 1, wherein the anti-reflection optical film is disposed on a surface of the photosensitive module.
3. The display panel of claim 1, wherein the optical barrier layer comprises:
the antireflection optical film is arranged between the display layer and the photosensitive module and arranged on the surface of the photosensitive module;
the reflection increasing optical film is arranged between the display layer and the photosensitive module, and the reflection increasing optical film is arranged on the surface of the display layer.
4. The display panel of claim 3, wherein an air gap is between the anti-reflective optical film and the anti-reflective optical film.
5. The display panel according to any one of claims 1 to 4, wherein an orthographic projection of the optical blocking layer on a plane of the display layer is within a range of an orthographic projection of the photosensitive module on a plane of the display layer.
6. The display panel according to any one of claims 1 to 4, further comprising:
locate the inboard buffer film of display layer, be equipped with the trompil on the buffer film, optical barrier layer establishes trompil department, the trompil is in the orthographic projection of the plane of display layer place is located the sensitization module is in the orthographic projection's in the plane of display layer place scope.
7. A display device, comprising: the display panel of any one of claims 1-6.
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| CN201811066741.4A CN109300942B (en) | 2018-09-13 | 2018-09-13 | Display panel and display device having the same |
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| CN201811066741.4A CN109300942B (en) | 2018-09-13 | 2018-09-13 | Display panel and display device having the same |
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| CN111276061B (en) * | 2020-01-21 | 2022-12-13 | 维沃移动通信有限公司 | Pole screen, preparation method of pole screen and electronic equipment |
| CN111580697A (en) | 2020-05-09 | 2020-08-25 | 上海天马微电子有限公司 | Composite film, touch panel and display device |
| CN111754876B (en) * | 2020-06-28 | 2022-06-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN111862812B (en) * | 2020-07-21 | 2022-08-09 | Oppo广东移动通信有限公司 | Display screen and electronic equipment |
| CN112289809A (en) * | 2020-10-28 | 2021-01-29 | 昆山国显光电有限公司 | Array substrate and display panel |
| CN113257145B (en) * | 2021-05-24 | 2023-10-27 | Oppo广东移动通信有限公司 | Display element and terminal having the same |
| CN114047649B (en) * | 2021-11-15 | 2022-10-04 | 武汉华星光电技术有限公司 | Liquid crystal display panel and on-vehicle liquid crystal display device |
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