CN109709678B - Display device and method for manufacturing the same - Google Patents
Display device and method for manufacturing the same Download PDFInfo
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- CN109709678B CN109709678B CN201910176707.0A CN201910176707A CN109709678B CN 109709678 B CN109709678 B CN 109709678B CN 201910176707 A CN201910176707 A CN 201910176707A CN 109709678 B CN109709678 B CN 109709678B
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Abstract
The application discloses a display device and a manufacturing method thereof, and belongs to the technical field of display. The display device includes: a display panel (101), an infrared light source (102), a dimming structure (103), and an infrared light receiving component (104), at least one of the infrared light source (102), the dimming structure (103), and the infrared light receiving component (104) being embedded in a first area within the display panel (101), an effective display area of the display panel (101) comprising: a second region for displaying an image, and the first region other than the second region; an infrared light source (102) configured to emit infrared light to a display side of the display panel (101); the dimming structure (103) is configured to be able to adjust the propagation direction of the infrared light emitted by the infrared light source (102). The problem that the joining of light receiving and dispatching subassembly can lead to display device's volume great is solved in this application, and this application is used for display device.
Description
Technical Field
The present disclosure relates to display technologies, and particularly to a display device and a method for manufacturing the same.
Background
The virtual reality display is a current popular display technology, and a display device applying the virtual reality display technology can achieve the effect of three-dimensional display, so that a user has experience of being personally on the scene.
In the related art, in order to further enhance the user experience, an optical transceiver module for recognizing the eyeball rotation direction may be generally configured for a display device to which a virtual reality display technology is applied. The optical transceiver module can emit light to a display side of a display panel in a display device, and convert light incident from the display side into an electrical signal. The controller in the display device may determine an eye rotation direction of the user based on the electrical signal and control the display panel to display a corresponding image according to the eye rotation direction.
However, the addition of the optical transceiver module results in a large volume of the display device.
Disclosure of Invention
The application provides a display device and a manufacturing method thereof, which can solve the problem that the volume of the display device is large due to the addition of an optical transceiving component, and the technical scheme is as follows:
in one aspect, there is provided a display device including: a display panel, an infrared light source, a light adjusting structure and an infrared light receiving component,
at least one of the infrared light source, the dimming structure, and the infrared light receiving assembly is embedded in a first area within the display panel, and an effective display area of the display panel includes: a second region for displaying an image, and the first region other than the second region;
the infrared light source is configured to emit infrared light to a display side of the display panel; the dimming structure is configured to be capable of adjusting a propagation direction of infrared light emitted by the infrared light source; the infrared light receiving assembly is configured to receive infrared light incident from the display side and convert the received infrared light into an electrical signal.
Optionally, the infrared light source and the dimming structure are embedded in a part of the first region, and the infrared light source and the dimming structure are overlapped in a direction perpendicular to the display panel, and the infrared light receiving assembly is embedded in another part of the first region.
Optionally, the dimming structure comprises: the dimming circuit comprises a first control circuit, a first polaroid, dimming liquid crystal and a second polaroid;
the first polarizer, the dimming liquid crystal and the second polarizer are all positioned on one side of the infrared light source close to the display side and are sequentially arranged along the direction close to the display side;
the first control circuit is configured to apply an electric field to the dimmed liquid crystal to cause the dimmed liquid crystal to adjust a direction of propagation of the infrared light by action of the electric field.
Optionally, the display panel includes a first substrate and a second substrate disposed opposite to each other, and an organic light emitting diode pixel unit located between the first substrate and the second substrate, the side where the second substrate is located is the display side,
the dimming structure further includes: the third substrate is positioned between the first polaroid and the dimming liquid crystal, and the fourth substrate is positioned between the second polaroid and the dimming liquid crystal;
the infrared light source is positioned between the first substrate and the dimming structure, and the surface of the second polaroid, which is far away from the first substrate, is coplanar with the surface of the second substrate, which is far away from the first substrate; the infrared light receiving assembly is located between the first substrate and the second substrate.
Optionally, the organic light emitting diode pixel unit includes: a pixel driving circuit and an organic light emitting diode arranged in this order in a direction close to the display side,
the infrared light source includes: an infrared light emitting diode, the infrared light receiving assembly comprising: a photodiode; at least one of the infrared light-emitting diode and the photodiode and the organic light-emitting diode are in the same layer structure.
Optionally, the display panel includes a first substrate and a second substrate disposed opposite to each other, and a liquid crystal pixel unit located between the first substrate and the second substrate, the side where the second substrate is located is the display side,
the infrared light source, the dimming structure and the infrared light receiving assembly are all located between the first substrate and the second substrate.
Optionally, the display panel further comprises: a third polarizing plate and a fourth polarizing plate,
the third polaroid is located on one side, far away from the display side, of the first substrate, the fourth polaroid is located on one side, close to the display side, of the second substrate, and the second polaroid and the fourth polaroid are of an integrated structure.
Optionally, the liquid crystal pixel unit includes: the pixel driving circuit and the pixel liquid crystal are sequentially arranged along the direction close to the display side, and the dimming liquid crystal and the pixel liquid crystal are in the same layer structure.
Optionally, a surface of the first substrate facing the second substrate has a groove, and the infrared light source is located in the groove.
Optionally, the display device further comprises: a second control circuit and a third control circuit,
the first control circuit, the second control circuit and the third control circuit are all positioned on the surface of the first substrate close to the display side; the second control circuit is electrically connected with the infrared light source and is configured to control the infrared light source to emit light; the third control circuit is electrically connected with the infrared light receiving component and is configured to control the output of the electrical signal converted by the infrared light receiving component;
at least one of the first control circuit, the second control circuit and the third control circuit comprises a first film layer, the pixel driving circuit in the display panel comprises a second film layer, and the first film layer and the second film layer are in the same layer structure.
Optionally, the display device further comprises: a housing, the display panel, the infrared light source, the dimming structure and the infrared light receiving assembly are all positioned in the housing,
the side of the shell close to the display side is provided with an infrared light transmission area, the light adjusting structure is configured to be capable of adjusting the propagation direction of the infrared light to a direction facing the infrared light transmission area, and the infrared light receiving assembly is configured to receive the infrared light entering from the infrared light transmission area.
Optionally, the first region includes a plurality of sub-regions, and the second region is located between the plurality of sub-regions, and each sub-region has at least one of the infrared light source, the dimming structure, and the infrared light receiving assembly embedded therein.
Optionally, the display device further comprises: a controller electrically connected with the infrared light receiving assembly, the infrared light receiving assembly further configured to output the electrical signal to the controller, the controller configured to control the display panel to display an image according to the electrical signal.
Optionally, the display device is a virtual reality display device.
In another aspect, a method for manufacturing a display device is provided, where the display device is the above display device, and the method includes:
manufacturing a display device including a display panel, an infrared light source, a dimming structure, and an infrared light receiving member;
wherein at least one of the infrared light source, the dimming structure and the infrared light receiving assembly is embedded in a first area within the display panel, and an effective display area of the display panel includes: a second region for displaying an image, and the first region other than the second region;
the infrared light source is configured to emit infrared light to a display side of the display panel; the dimming structure is configured to be capable of adjusting a propagation direction of infrared light emitted by the infrared light source; the infrared light receiving assembly is configured to receive infrared light incident from the display side and convert the received infrared light into an electrical signal.
In the embodiment of the invention, at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel and is positioned in the first area in the effective display area of the display panel. Since the first area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an active display area and a non-display area according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an effective display area according to an embodiment of the present invention;
fig. 5A is a schematic structural diagram of a dimming structure according to an embodiment of the present invention;
FIG. 5B is a schematic diagram illustrating propagation of infrared light according to an embodiment of the present invention;
fig. 5C is a schematic diagram illustrating a gradual change of an area allowing infrared light to pass through in a dimming structure according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a cross section PP of a display device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a cross section QQ of a display device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a cross-section PP of another display device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a cross-section PP of another display device according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a housing according to an embodiment of the present invention;
fig. 11 is a schematic diagram illustrating a shape of an image displayed on a display panel according to an embodiment of the present invention;
fig. 12 is a flowchart of a method for manufacturing a display device according to an embodiment of the invention;
FIG. 13 is a flow chart of another method for manufacturing a display device according to an embodiment of the present invention;
fig. 14 is a schematic view illustrating a manufacturing process of a display device according to an embodiment of the invention;
fig. 15 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the invention;
fig. 16 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention;
fig. 17 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention;
fig. 18 is a flowchart illustrating a method of manufacturing a display device according to another embodiment of the present invention;
fig. 19 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention;
fig. 20 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention;
fig. 21 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the invention;
fig. 22 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention;
fig. 23 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the invention;
fig. 24 is a schematic view illustrating a manufacturing process of another display device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Since the display device incorporating the optical transceiver module in the related art has a large volume, the embodiment of the present invention provides a display device incorporating the optical transceiver module and having a small volume.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 1, the display device 10 may include: a display panel 101, an infrared light source 102, a dimming structure 103, and an infrared light receiving assembly 104.
At least one of the infrared light source 102, the dimming structure 103, and the infrared light receiving assembly 104 is embedded in a first area within the display panel 101, and an effective display area of the display panel 101 includes: a second region for displaying an image, and a first region other than the second region. In fig. 1, an infrared light source 102, a dimming structure 103 and an infrared light receiving assembly 104 are embedded in a display panel 101 as an example. Optionally, the infrared light source and the dimming structure may be embedded in the display panel, and the infrared light structure assembly is located outside the display panel, which is not limited in the embodiment of the present invention.
The infrared light source 102 is configured to emit infrared light to the display side of the display panel 101; the dimming structure 103 is configured to be able to adjust the propagation direction of the infrared light emitted by the infrared light source 102. The infrared light receiving component 104 is configured to receive infrared light incident from the display side and convert the received infrared light into an electrical signal.
In summary, in the embodiments of the invention, at least one of the infrared light emitting device and the infrared light receiving device is embedded in the display panel and located in the second area of the effective display area of the display panel. Since the second area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
The light adjustment structure 103 can adjust the propagation direction of the infrared light emitted from the infrared light source 102. For example, with continued reference to fig. 1, the dimming structure can control the propagation direction a of the infrared light to gradually change with time so as to scan all directions on the display side. Fig. 1 shows only the propagation direction a of infrared light at a certain time. For example, the dimming structure may control the propagation direction of the infrared light to be gradually changed along a first direction first, and then gradually changed along a second direction perpendicular to the first direction. Alternatively, the dimming structure may control the propagation direction of the infrared light to be gradually changed only in the first direction.
Optionally, the infrared light source may include one or more infrared light emitting diodes. When the infrared light source includes a plurality of infrared light emitting diodes, the plurality of infrared light emitting diodes may be arranged in an array. The infrared light receiving assembly may include one or more photodiodes, and when the infrared light receiving assembly includes a plurality of photodiodes, the plurality of photodiodes may be arranged in an array.
Optionally, with continuing reference to fig. 2, on the basis of fig. 1, the display device may further include: the controller 105, the display panel 101 and the infrared light receiving assembly 104 are electrically connected to the controller 105, the infrared light receiving assembly 104 is further configured to output an electrical signal to the controller 105, and the controller 105 is configured to control the display panel 101 to display an image according to the electrical signal. For example, the controller 105 may determine a rotation direction of an eyeball on a display side of the display device according to the received electrical signal, and then control the display panel to display an image according to the rotation direction of the eyeball, so that the image displayed on the display panel can be changed along with the rotation direction of the eyeball, thereby implementing an eye tracking function.
Further, the infrared light source 102 may also be electrically connected to the controller 105, and the controller 105 may also control the infrared light source to emit infrared light. The dimming structure 103 may also be electrically connected to the controller 105, and the controller 105 may also control the adjustment of the propagation direction of the infrared light by the dimming structure 103.
Optionally, the display device provided in the embodiment of the present invention may be a virtual reality display device, or may not be a virtual reality display device, which is not limited in the embodiment of the present invention.
It should be noted that, as shown in fig. 3, the display panel generally includes an effective display area X and a non-display area Y, where the effective display area X is a pixel area of the display panel that can be seen by a user, and the non-display area Y is generally covered by a front frame of the display device where the display panel is located and cannot be seen by the user. Wherein fig. 1 and 2 each show a cross-sectional structure of the display panel, and fig. 3 shows a top-view structure of the display panel.
Further, the effective display area X of the display panel may include: a second region X1 for displaying an image, and a first region X2 other than the second region X1. Since the first region X2 is not used for displaying an image, the first region X2 may be referred to as a display shadow region. At least one of the infrared light source 102, the dimming structure 103 and the infrared light receiving assembly 104 may be located in the first area X2, so that the at least one structure is embedded in the display panel and does not affect the normal display of the display panel. For example, the infrared light source and the dimming structure may be superimposed on a portion X21 of the first area X2, and the infrared light receiving assembly may be located in another portion X22 of the first area X2.
Taking the example of the effective display area X being divided into the second area X1 and the first area X2 in fig. 3, further, as shown in fig. 4, the first area X2 in fig. 3 may further include a plurality of sub-areas Z, and the second area X1 is located between the plurality of sub-areas Z. Each sub-area Z has at least one of an infrared light source, a dimming structure and an infrared light receiving assembly embedded therein. For example, the plurality of sub-regions Z may be located in at least one direction of the second region X1, and fig. 4 illustrates that the plurality of sub-regions Z are located in four directions of the second region X1, and optionally, the plurality of sub-regions Z may be located in the same direction of the second region X1.
The dimming structure can be any structure capable of controlling the gradual change of the infrared light along with time. In the embodiment of the present invention, the dimming structure is taken as a liquid crystal dimming structure (such as a liquid crystal grating or a liquid crystal lens). For example, fig. 5A is a schematic structural diagram of a dimming structure according to an embodiment of the present invention, and as shown in fig. 5A, the dimming structure 103 may include: first control circuit 1031, first polarizer 1032, dimming liquid crystal 1033, and second polarizer 1034. The first polarizer 1032, the dimming liquid crystal 1033, and the second polarizer 1034 are all located on one side of the infrared light source 101 close to the display side, and are sequentially arranged along the direction close to the display side. The first control circuit 1031 is configured to apply an electric field to the dimming liquid crystal 1033 to cause the dimming liquid crystal 1033 to adjust the propagation direction of the infrared light by the action of the electric field. Alternatively, the light modulation structure may not be a liquid crystal light modulation structure, for example, the light modulation structure is a Micro-Electro-Mechanical System (MEMS) grating.
When the dimming structure 103 is a liquid crystal grating, as shown in fig. 5B, the dimming structure 103 deflects a portion of the dimming liquid crystal, so that the region 1 where a portion of the dimming liquid crystal in the dimming structure is located allows the infrared light to pass through, the region 2 where another portion of the dimming liquid crystal is located does not allow the infrared light to pass through, and the propagation direction of the infrared light passing through the dimming structure 103 is adjusted. In addition, when the position of the region 1 allowing the infrared light to pass through in the dimming structure is gradually changed with time (as shown in fig. 5C), the propagation direction of the infrared light passing through the dimming structure 103 is gradually changed with time. Referring to fig. 5B, after the infrared light source 102 emits infrared light, the light adjusting structure 103 can adjust the propagation direction a of the infrared light, for example, adjust the propagation direction a of the infrared light to a direction toward the eyeball T. After the infrared light is emitted to the eyeball T, the infrared light may be reflected to the display device at the eyeball T, so that the infrared light receiving component 104 in the display device can receive the infrared light reflected to the display device.
It should be noted that fig. 5C only schematically shows the process of the position gradual change of the area 1, fig. 5B only schematically shows one position of the area 1, and the number and the positions of the areas 1 shown in fig. 5B and fig. 5C are different. In practical application, the number and the position of the areas 1 can be reversely adjusted according to an actual target, which is not limited in the embodiment of the present invention.
Further, the display panel may be an organic light emitting diode display panel or a liquid crystal display panel, and specific structures of the two display panels will be explained below.
On one hand, when the display panel is an organic light emitting diode display panel, the structure of the display device may be as shown in fig. 6 and 7. Fig. 6 is a schematic structural diagram of a section PP in fig. 3, and fig. 7 is a schematic structural diagram of a section QQ in fig. 3.
Referring to fig. 6 and 7, the display panel includes a first substrate 1011 and a second substrate 1012 disposed opposite to each other, and an oled pixel unit 1013 located between the first substrate 1011 and the second substrate 1012, where the second substrate 1012 is located on the display side of the display panel. At this time, the dimming structure 103 may further include: a third substrate 1035 disposed between the first polarizer 1032 and the dimming liquid crystal 1033, and a fourth substrate 1036 disposed between the second polarizer 1034 and the dimming liquid crystal 1033, wherein the first control circuit 1031 in the dimming structure 103 may be disposed between the infrared light source 102 and the first substrate 1011. The infrared light source 102 is located between the first substrate 1011 and the light modulation structure 103, and the surface of the second polarizer 1034 far away from the first substrate 1011 is coplanar with the surface of the second substrate 1012 far away from the first substrate 1011; the infrared light receiving element 104 is located between the first substrate 1011 and the second substrate 1012.
The organic light emitting diode pixel unit 1013 may include: a pixel driving circuit 111 and an organic light emitting diode 10132 arranged in this order in a direction close to the display side, the pixel driving circuit 111 being for driving the organic light emitting diode 10132 to emit light, the pixel driving circuit 111 generally including a plurality of thin film transistors and at least one capacitor. The infrared light source 102 may include: the infrared light emitting diode, infrared light receiving assembly 104 includes: a photodiode; at least one of the infrared light emitting diode and the photodiode and the organic light emitting diode 10132 are in the same layer structure. In the embodiment of the present invention, the infrared light emitting diode and the photodiode are both in the same layer structure as the organic light emitting diode 10132. The infrared light emitting diode and the organic light emitting diode 10132 may also be in a same layer structure, and the photodiode and the organic light emitting diode 10132 are not in a same layer structure, which is not limited in the embodiment of the present invention.
On the other hand, when the display panel 101 is a liquid crystal display panel, the structure of the display device may be as shown in fig. 8 and 9. Fig. 8 is a schematic structural diagram of a section PP in fig. 3, and fig. 9 is a schematic structural diagram of a section QQ in fig. 3. Referring to fig. 8 and 9, the display panel may include a first substrate 1011 and a second substrate 1012 disposed opposite to each other, and a liquid crystal pixel 1014 disposed between the first substrate 1011 and the second substrate 1012, where the second substrate 1012 is located on the display side of the display panel. The infrared light source 102, the dimming structure 103 and the infrared light receiving assembly 104 are disposed between the first substrate 1011 and the second substrate 1012.
Optionally, the display panel 101 may further include: a third polarizer 1015 and a fourth polarizer 1016, where the third polarizer 1015 may be located on a side of the first substrate 1011 away from the display side, the fourth polarizer 1016 is located on a side of the second substrate 1012 close to the display side, and the second polarizer 1034 and the fourth polarizer 1016 may be an integrated structure. Therefore, the purpose of manufacturing the second polarizer and the fourth polarizer can be simultaneously realized by manufacturing one polarizer, and the manufacturing process of the display device is simplified.
Alternatively, the liquid crystal pixel unit 1014 may include: a pixel driving circuit 111 and a pixel liquid crystal 10142 arranged in sequence along a direction close to the display side, wherein the pixel driving circuit 111 is used for driving the pixel liquid crystal 10142 to deflect, and the pixel driving circuit 111 generally comprises a thin film transistor. The dimming liquid crystal 1033 in the dimming structure 101 may be in the same layer structure as the pixel liquid crystal 10142. Since the dimming liquid crystal 1033 and the pixel liquid crystal 10142 are of the same layer structure, the dimming liquid crystal 1033 can be manufactured at the same time of manufacturing the pixel liquid crystal 10142 without manufacturing the pixel liquid crystal and the dimming liquid crystal respectively by two manufacturing processes, and the manufacturing process of the display device is simplified.
Alternatively, the surface of the first substrate 1011 facing the second substrate 1012 may have a groove B (the groove may be formed by an etching process), and the infrared light source 102 may be located within the groove B. That is, when the dimming liquid crystal and the pixel liquid crystal are in the same layer structure, in the embodiment of the invention, the groove may be dug on the surface of the first substrate 1011, so that the infrared light source 102 may have a larger accommodating space. It should be noted that, in the embodiment of the present invention, the surface of the first substrate is taken as an example, in practical applications, any position of any one of the first substrate and the second substrate may have a groove, for example, the surface of the second substrate facing the first substrate may also have a groove, and the dimming liquid crystal may be located in the groove, which is not limited in the embodiment of the present invention.
Further, referring to fig. 6, 7, 8 and 9, whether the display panel is an organic light emitting diode display panel or a liquid crystal display panel, the display device may further include: a second control circuit 105 and a third control circuit 106. The first control circuit 1031, the second control circuit 105, and the third control circuit 106 are all located on the surface of the first substrate 1011 near the display side; the second control circuit 105 is electrically connected with the infrared light source 102, and the second control circuit 105 is configured to control the infrared light source 102 to emit light; the third control circuit 106 is electrically connected to the infrared light receiving component 104 and configured to control the output of the electrical signal converted by the infrared light receiving component 104 (for example, output to the controller in fig. 5A).
At least one of the first control circuit 1031, the second control circuit 105 and the third control circuit 106 includes a first film layer, the pixel driving circuit in the display panel includes a second film layer, and the first film layer and the second film layer are in the same layer structure. Thus, the first film layer of the first control circuit, the second control circuit and the third control circuit can be manufactured by the way when the second film layer of the pixel driving circuit is manufactured, thereby simplifying the manufacturing process of the display panel. It should be noted that the first control circuit 1031, the second control circuit 105, and the third control circuit 106 may include one or more first film layers, which is not limited in this embodiment of the invention. For example, the first control circuit 1031, the second control circuit 105 and the third control circuit 106 may each include a thin film transistor, and the thin film transistors in the first control circuit 1031, the second control circuit 105 and the third control circuit 106 may each be in the same layer structure as any thin film transistor in the pixel driving circuit 111.
Still further, as shown in fig. 10, the display device according to the embodiment of the present invention may further include: the housing 107, the display panel, the infrared light source, the dimming structure, and the infrared light receiving assembly may be located within the housing 107. The housing 107 has an infrared light transmitting region C on a side close to the display side, and the dimming structure is configured to adjust a propagation direction of the infrared light to a direction toward the infrared light transmitting region C, so that the infrared light passing through the dimming structure can be made to exit the display device from the infrared light transmitting region C. The infrared light receiving member may be configured to receive infrared light incident from the infrared light transmitting region C. Alternatively, the infrared light transmitting area C in the housing 107 may be a transparent area, or the infrared light transmitting area C in the housing 107 may be an open area, which is not limited in the embodiment of the present invention.
It should be noted that, in the embodiment of the present invention, the display device includes a set of infrared light components (including an infrared light source, a dimming structure, and an infrared light component), and the display device may also include multiple sets of infrared light components. Optionally, when the display device includes a plurality of sets of infrared light assemblies, a plurality of infrared light transmission regions C corresponding to the plurality of sets of infrared light assemblies one to one may be disposed on the housing of the display device, in each infrared light assembly, the dimming structure is configured to adjust a transmission direction of infrared light emitted by the infrared light assembly to a direction toward the infrared light transmission region corresponding to the infrared light assembly, and the infrared light receiving assembly is configured to receive infrared light incident from the infrared light transmission region.
With continued reference to fig. 10, the housing 107 may further have a lens region D, such as two lens regions D, each having a lens disposed therein. The user can see the image displayed on the display panel in the housing through the lens region D. In order to avoid distortion of the image displayed on the display panel through the thickness of the lens, it is generally necessary to perform an anti-distortion process on the image displayed on the display panel, and in this case, the image displayed on the second area of the effective display area of the display panel is not generally rectangular, but is irregular as shown in fig. 11.
In summary, in the embodiments of the invention, at least one of the infrared light emitting device and the infrared light receiving device is embedded in the display panel and located in the second area of the effective display area of the display panel. Since the second area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
Fig. 12 is a flowchart of a method for manufacturing a display device according to an embodiment of the present invention, which may be used to manufacture the display device according to the embodiment of the present invention, such as the display device shown in any one of fig. 1 to 11. As shown in fig. 12, the method of manufacturing the display device may include:
In summary, in the embodiments of the invention, at least one of the infrared light emitting device and the infrared light receiving device is embedded in the display panel and located in the second area of the effective display area of the display panel. Since the second area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
Fig. 13 is a flowchart of another method for manufacturing a display device according to an embodiment of the present invention, which can be used to manufacture the display device shown in fig. 6 and 7. As shown in fig. 13, the method of manufacturing the display device may include:
At least one of the first, second and third driving circuits includes a first film layer, and the pixel driving circuit includes a second film layer. The first film layer may be fabricated simultaneously when fabricating the second film layer in the pixel driving circuit. The pixel driving circuit 111, the first driving circuit 1031, and the second driving circuit 105 formed on the first substrate 1011 may be as shown in fig. 14, and the third driving circuit 106 formed on the first substrate 1011 may be as shown in fig. 15.
The infrared light source may include: the infrared light emitting diode, the infrared light receiving assembly may include: a photodiode; at least one of the infrared light-emitting diode and the photodiode and the organic light-emitting diode are in the same layer structure. In manufacturing the organic light emitting diode, the at least one diode may be manufactured simultaneously.
The organic light emitting diode 10132 and the infrared light source 102 formed on the first substrate 1011 may be as shown in fig. 16, and the infrared light receiving member 104 formed on the first substrate 1011 may be as shown in fig. 17.
And 1303, forming a second substrate, a first polarizer, a third substrate, a dimming liquid crystal, a fourth substrate and a second polarizer on the first substrate on which the organic light emitting diode, the infrared light source and the infrared light receiving assembly are formed.
The structure obtained by forming the second substrate 1012, the first polarizer 1032, the third substrate 1035, the dimming liquid crystal 1033, the fourth substrate 1036, and the second polarizer 1034 on the first substrate 1011 can be as shown in fig. 6 and 7.
In summary, in the embodiments of the invention, at least one of the infrared light emitting device and the infrared light receiving device is embedded in the display panel and located in the second area of the effective display area of the display panel. Since the second area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
Fig. 18 is a flowchart of a method for manufacturing a display device according to another embodiment of the present invention, which can be used to manufacture the display device shown in fig. 8 and 9. As shown in fig. 18, the method of manufacturing the display device may include:
At least one of the first, second and third driving circuits includes a first film layer, and the pixel driving circuit includes a second film layer. The first film layer may be fabricated simultaneously when fabricating the second film layer in the pixel driving circuit. The pixel driving circuit 111, the first driving circuit 1031, and the second driving circuit 105 formed on the first substrate 1011 may be as shown in fig. 19, and the third driving circuit 106 formed on the first substrate 1011 may be as shown in fig. 20.
The infrared light source may include: the infrared light emitting diode, the infrared light receiving assembly may include: a photodiode; the infrared light emitting diode and the photodiode may be of the same layer structure. In the manufacture of the infrared light emitting diode, the photodiode may be manufactured at the same time.
The infrared light source 102 formed on the first substrate 1011 may be as shown in fig. 21, and the infrared light receiving element 104 formed on the first substrate 1011 may be as shown in fig. 22.
The first polarizer 1032 formed on the first substrate 1011 may be as shown in fig. 23.
And 1804, forming pixel liquid crystal and dimming liquid crystal on the first substrate on which the first polarizer is formed.
The pixel liquid crystal and the dimming liquid crystal may be of a same layer structure, and the dimming liquid crystal may be manufactured while forming the pixel liquid crystal. The pixel liquid crystal 10142 and the dimming liquid crystal 1033 formed on the first substrate 1011 may be as shown in fig. 24.
The fourth polarizer and the second polarizer may be an integrated structure. And the fourth polaroid and the second polaroid are attached to one side of the second substrate, which is far away from the first substrate, and the fourth polaroid and the second polaroid can be attached to one side of the second substrate through attaching one polaroid. After the third polarizer, the fourth polarizer, and the second polarizer are attached, the display device as shown in fig. 8 and 9 may be obtained.
In summary, in the embodiments of the invention, at least one of the infrared light emitting device and the infrared light receiving device is embedded in the display panel and located in the second area of the effective display area of the display panel. Since the second area is an area which is not used for displaying images in the effective display area, the addition of the infrared light emitting assembly and the infrared light receiving assembly does not affect the normal display of the display panel. And at least one of the infrared light emitting assembly and the infrared light receiving assembly is embedded in the display panel, so that the volume of the display panel can not be greatly increased due to the addition of the infrared light emitting assembly and the infrared light receiving assembly. Therefore, the display device incorporating the infrared light emitting module and the infrared light receiving module is small in size.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (14)
1. A display device, characterized in that the display device comprises: a display panel (101), an infrared light source (102), a dimming structure (103), an infrared light receiving component (104) and a controller (105),
at least one of the infrared light source (102), the dimming structure (103) and the infrared light receiving component (104) is embedded in a first area within the display panel (101), an effective display area of the display panel (101) comprising: a second region for displaying an image, and the first region other than the second region;
the infrared light source (102) and the dimming structure (103) are embedded in one part of the first area, the infrared light source (102) and the dimming structure (103) are overlapped in a direction perpendicular to the display panel, and the infrared light receiving component (104) is embedded in the other part of the first area;
the controller (105) is electrically connected with the infrared light source (102), and the controller (105) is configured to control the infrared light source (102) to emit infrared light;
the controller (105) is further electrically connected with the dimming structure (103), the controller (105) being configured to control adjustment of the propagation direction of the infrared light by the dimming structure (103);
the infrared light source (102) is configured to emit infrared light to a display side of the display panel (101); the dimming structure (103) is configured to be able to adjust the propagation direction of the infrared light emitted by the infrared light source (102); the infrared light receiving element (104) is configured to receive infrared light incident from the display side and convert the received infrared light into an electrical signal.
2. The display device according to claim 1, wherein the dimming structure (103) comprises: a first control circuit (1031), a first polarizer (1032), a dimming liquid crystal (1033), and a second polarizer (1034);
the first polarizer (1032), the dimming liquid crystal (1033) and the second polarizer (1034) are all located on one side, close to the display side, of the infrared light source (102) and are sequentially arranged along the direction close to the display side;
the first control circuit (1031) is configured to apply an electric field to the dimmed liquid crystal (1033) to cause the dimmed liquid crystal (1033) to adjust a direction of propagation of the infrared light by action of the electric field.
3. The display device according to claim 2, wherein the display panel (101) comprises a first substrate (1011) and a second substrate (1012) disposed opposite to each other, and an organic light emitting diode pixel unit (1013) between the first substrate (1011) and the second substrate (1012), the side of the second substrate (1012) being the display side,
the dimming structure (103) further comprises: a third substrate (1035) between the first polarizer (1032) and the dimming liquid crystal (1033), and a fourth substrate (1036) between the second polarizer (1034) and the dimming liquid crystal (1033);
the infrared light source (102) is positioned between the first substrate (1011) and the dimming structure (103), and the surface of the second polarizer (1034) far away from the first substrate (1011) is coplanar with the surface of the second substrate (1012) far away from the first substrate (1011); the infrared light receiving component (104) is located between the first substrate (1011) and the second substrate (1012).
4. A display device according to claim 3, wherein the organic light emitting diode pixel unit (1013) comprises: a pixel drive circuit (111) and an organic light emitting diode (10132) arranged in this order in a direction close to the display side,
the infrared light source (102) comprises: an infrared light emitting diode, the infrared light receiving assembly (104) comprising: a photodiode; at least one of the infrared light emitting diode and the photodiode and the organic light emitting diode (10132) are in the same layer structure.
5. The display device according to claim 2, wherein the display panel (101) comprises a first substrate (1011) and a second substrate (1012) disposed opposite to each other, and a liquid crystal pixel unit (1014) disposed between the first substrate (1011) and the second substrate (1012), the side of the second substrate (1012) being the display side,
the infrared light source (102), the dimming structure (103), and the infrared light receiving component (104) are located between the first substrate (1011) and the second substrate (1012).
6. The display device according to claim 5, wherein the display panel (101) further comprises: a third polarizer (1015) and a fourth polarizer (1016),
the third polarizer (1015) is located on one side of the first substrate (1011) far away from the display side, the fourth polarizer (1016) is located on one side of the second substrate (1012) close to the display side, and the second polarizer (1034) and the fourth polarizer (1016) are of an integral structure.
7. The display device according to claim 5, wherein the liquid crystal pixel cell (1014) comprises: the liquid crystal display comprises a pixel driving circuit (111) and a pixel liquid crystal (10142) which are sequentially arranged along the direction close to the display side, and the dimming liquid crystal (1033) and the pixel liquid crystal (10142) are of the same layer structure.
8. A display device as claimed in claim 7, characterised in that the surface of the first substrate (1011) facing the second substrate (1012) has a recess in which the infrared light source (102) is located.
9. The display device according to claim 4 or 7, characterized in that the display device further comprises: a second control circuit (105) and a third control circuit (106),
the first control circuit (1031), the second control circuit (105), and the third control circuit (106) are all located on a surface of the first substrate (1011) near the display side; the second control circuit (105) is electrically connected with the infrared light source (102) and is configured to control the infrared light source (102) to emit light; the third control circuit (106) is electrically connected with the infrared light receiving component (104) and is configured to control the output of the electrical signal converted by the infrared light receiving component (104);
at least one of the first control circuit (1031), the second control circuit (105), and the third control circuit (106) includes a first film layer, the pixel driving circuit (111) in the display panel (101) includes a second film layer, and the first film layer and the second film layer are in the same layer structure.
10. The display device according to claim 1, further comprising: a housing (107), the display panel (101), the infrared light source (102), the dimming structure (103), and the infrared light receiving component (104) all being located within the housing (107),
the side of the shell (107) close to the display side is provided with an infrared light transmission area, the dimming structure (103) is configured to be capable of adjusting the propagation direction of the infrared light to a direction towards the infrared light transmission area, and the infrared light receiving component (104) is configured to receive the infrared light entering from the infrared light transmission area.
11. The display device according to claim 1, wherein the first region comprises a plurality of sub-regions, and the second region is located between the plurality of sub-regions, each sub-region having the at least one structure embedded therein.
12. The display device according to claim 1, wherein the infrared light receiving component (104) is electrically connected to the controller (105), the infrared light receiving component (104) is further configured to output the electrical signal to the controller (105), and the controller (105) is configured to control the display panel (101) to display an image according to the electrical signal.
13. The display device of claim 1, wherein the display device is a virtual reality display device.
14. A method of manufacturing a display device according to any one of claims 1 to 13, the method comprising:
manufacturing a display device including a display panel, an infrared light source, a dimming structure, an infrared light receiving assembly, and a controller;
wherein at least one of the infrared light source, the dimming structure and the infrared light receiving assembly is embedded in a first area within the display panel, and an effective display area of the display panel includes: a second region for displaying an image, and the first region other than the second region;
the infrared light source (102) and the dimming structure (103) are embedded in one part of the first area, the infrared light source (102) and the dimming structure (103) are overlapped in a direction perpendicular to the display panel, and the infrared light receiving component (104) is embedded in the other part of the first area;
the controller (105) is electrically connected with the infrared light source (102), and the controller (105) is configured to control the infrared light source (102) to emit infrared light;
the controller (105) is further electrically connected with the dimming structure (103), the controller (105) being configured to control adjustment of the propagation direction of the infrared light by the dimming structure (103);
the infrared light source is configured to emit infrared light to a display side of the display panel; the dimming structure is configured to be capable of adjusting a propagation direction of infrared light emitted by the infrared light source; the infrared light receiving assembly is configured to receive infrared light incident from the display side and convert the received infrared light into an electrical signal.
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| US20150234187A1 (en) * | 2014-02-18 | 2015-08-20 | Aliphcom | Adaptive optics |
| CN108717244B (en) * | 2018-05-18 | 2021-03-26 | 京东方科技集团股份有限公司 | Display device, control method thereof, and storage medium |
| CN108983464B (en) * | 2018-09-03 | 2021-04-09 | 京东方科技集团股份有限公司 | Light guide assembly and manufacturing method thereof, eyeball tracking module and method thereof, and video glasses |
| CN109407392B (en) * | 2019-01-02 | 2021-08-06 | 京东方科技集团股份有限公司 | Liquid crystal display and virtual reality head-mounted device |
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