CN114675428A - Display device, display equipment, driving method and storage medium - Google Patents
Display device, display equipment, driving method and storage medium Download PDFInfo
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- CN114675428A CN114675428A CN202210604088.2A CN202210604088A CN114675428A CN 114675428 A CN114675428 A CN 114675428A CN 202210604088 A CN202210604088 A CN 202210604088A CN 114675428 A CN114675428 A CN 114675428A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The present disclosure relates to a display device, a display apparatus, a driving method, and a storage medium, and relates to the field of display technologies. The display device includes: the device comprises a plurality of visible light emitting units with different light emitting colors, an infrared photosensitive unit, a color combination prism, an infrared light emitting unit and a control unit; the visible light emitting units with different light emitting colors are respectively arranged on different light incident surfaces of the color combination prism; the infrared light sensing unit and the plurality of visible light emitting units with different light emitting colors are electrically connected with the control unit; the color combination prism is used for synthesizing incident lights of a plurality of visible light emitting units with different light emitting colors and then emitting the incident lights from a light emitting surface of the color combination prism; the infrared light-emitting unit is used for emitting infrared light to eyes of a viewer; the infrared light sensing unit is used for sensing infrared light reflected by eyes of a viewer. The power consumption can be reduced and the heat generation can be reduced on the premise of not influencing the visual effect.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display device, a display apparatus, a driving method, and a storage medium.
Background
The light emitting diode is widely applied in various fields and various devices, such as a currently popular VR (Virtual Reality) device and an AR (Augmented Reality) device, and a display screen of the light emitting diode is formed by the light emitting diode, so that the light emitting diode has high brightness, a simple structure and high response speed.
Under general conditions, when the display screen is luminous, emitting diode is in all on-state on the display screen, and at this moment, the consumption of whole display screen is too high, can cause the waste of the energy, also can produce huge heat, and the nature that follows also has the heat dissipation problem.
Disclosure of Invention
In order to solve the above technical problems, the present disclosure provides a display device, a display apparatus, a driving method, and a storage medium, which can reduce power consumption and reduce heat generation without affecting a visual effect.
In a first aspect, the present disclosure provides a display device comprising:
the device comprises a plurality of visible light emitting units with different light emitting colors, an infrared photosensitive unit, a color combination prism, an infrared light emitting unit and a control unit;
the plurality of visible light emitting units with different light emitting colors are respectively arranged on different light incident surfaces of the color combination prism; the infrared light sensing unit and the plurality of visible light emitting units with different light emitting colors are electrically connected with the control unit;
the color combination prism is used for synthesizing incident lights of a plurality of visible light emitting units with different light emitting colors and then emitting the incident lights from a light emitting surface of the color combination prism;
the infrared light-emitting unit is used for emitting infrared light to eyes of a viewer; the infrared light sensing unit is used for sensing infrared light reflected by eyes of a viewer;
the control unit is used for determining the sight line display areas and the onlooker areas of the visible light emitting units with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit and controlling the on-density of the light emitting elements in the sight line display areas to be larger than the on-density of the light emitting elements in the onlooker areas.
In some embodiments, the infrared light sensing unit is located at a side of any one visible light emitting unit away from the light incident surface of the color combining prism;
the substrate of the visible light-emitting unit between the light incident surface of the color combination prism and the infrared light sensing unit is a transparent substrate; the infrared light-emitting units are positioned on the light incident surface of the color combination prism and are not overlapped with the visible light-emitting units.
In some embodiments, the visible light emitting unit includes a visible light emitting element array chip and a driving chip;
the visible light emitting element array chip of the visible light emitting unit between the light incident surface of the color combining prism and the infrared light sensing unit is bonded with the driving chip in a mixed bonding mode;
and a driving chip of the visible light luminous unit between the light incident surface of the color combination prism and the infrared photosensitive unit is bonded with the infrared photosensitive unit in a mixed bonding mode.
In some embodiments, a filter is disposed between the infrared light sensing unit and the visible light emitting unit, and the filter filters out visible light.
In a second aspect, the present disclosure also provides a display apparatus comprising the display device according to the first aspect.
In a third aspect, the present disclosure also provides a display device driving method, applied to the display device according to any embodiment of the first aspect, including:
controlling the infrared light emitting unit to emit infrared light;
acquiring infrared light reflected by eyes of a viewer and sensed by an infrared photosensitive unit;
and determining a sight line display area and an onlooker area of a plurality of visible light emitting units with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit, and controlling the turn-on density of the light emitting elements in the sight line display area to be greater than the turn-on density of the light emitting elements in the onlooker area.
In some embodiments, the determining the line-of-sight display area and the onlooker area of the plurality of visible light emitting units of different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit comprises:
determining the eye sight direction of the viewer according to the infrared light reflected by the eyes of the viewer and sensed by the infrared photosensitive unit;
and determining a coverage area within a preset angle range with the eye sight direction of the viewer in the visible light emitting units with different light emitting colors as a sight line display area, and determining other areas except the sight line display area in the visible light emitting units as onlooker areas.
In some embodiments, said controlling the on-density of light emitting elements of said line-of-sight display area to be greater than the on-density of light emitting elements in said onlooker area comprises:
and controlling all the light-emitting elements in the sight line display area to be started, and controlling the light-emitting elements in the onlooker area to be started in an interlaced or spaced mode.
In some embodiments, the controlling the infrared light emitting unit to emit infrared light includes:
and controlling the infrared light emitting unit to emit infrared light with a preset pattern.
In a fourth aspect, the present disclosure also provides a computer-readable storage medium storing a computer program for executing the method of any embodiment of the third aspect.
This is disclosed through setting up a plurality of different luminous colour's visible light luminescence unit, infrared sensitization unit, color composition prism, infrared luminescence unit and the control unit. The visible light emitting units with different light emitting colors are respectively arranged on different light incident surfaces of the color combination prism, and the infrared light sensing unit and the visible light emitting units with different light emitting colors are electrically connected with the control unit. The infrared light emitting unit emits infrared light to eyes of a viewer, and the infrared light sensing unit senses the infrared light reflected by the eyes of the viewer. The current sight line display area and the onlooker area of the viewer are determined by reflecting infrared light energy, and the on-density of the light-emitting elements in the area is larger than that in the onlooker area. The power consumption can be reduced and the heat generation can be reduced on the premise of not influencing the visual effect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the disclosure;
fig. 2 is a schematic diagram illustrating a light combining principle of a color combining prism according to an embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional view of a partial structure of a display device according to an embodiment of the present disclosure;
fig. 4 is a schematic view illustrating propagation of infrared light on a color combining prism according to an embodiment of the disclosure;
fig. 5 is a schematic connection diagram illustrating a partial structure of a display device according to an embodiment of the present disclosure;
fig. 6 is a schematic flowchart illustrating a driving method of a display device according to an embodiment of the disclosure;
fig. 7 is a schematic diagram of a visual display area determination provided by the present disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, and the display device according to the embodiment of the present disclosure includes: a plurality of visible light emitting units 11 with different light emitting colors, an infrared photosensitive unit 12, a color combination prism 13, an infrared light emitting unit 14 and a control unit 15. The plurality of visible light emitting units 11 with different light emitting colors are respectively arranged on different light incident surfaces of the color combining prism 13, and the infrared light sensing unit 12 and the plurality of visible light emitting units 11 with different light emitting colors are electrically connected with the control unit 15.
The color combining prism 13 is used to combine the incident lights of the plurality of visible light emitting units 11 with different emission colors and then emit the combined light from the light emitting surface of the color combining prism. The infrared light emitting unit 14 is for emitting infrared light to the eyes of the viewer; the infrared photosensitive unit 12 is used for sensing infrared light reflected by the eyes of the viewer.
The control unit 15 is configured to determine a line-of-sight display area and an onlooker area of the plurality of visible light emitting units 11 with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared sensing unit 12, and control the on-density of the light emitting elements in the line-of-sight display area to be greater than the on-density of the light emitting elements in the onlooker area.
Specifically, the plurality of visible light emitting units 11 with different light emitting colors are disposed at different light incident surfaces of the color combining prism 13 and electrically connected to the control unit 15, and the visible light emitting units 11 emit light into the color combining prism 13 and emit the light through the light emitting surface of the color combining prism 13 under the control of the control unit 15. The light rays with different colors can be respectively incident into the color combination prism 13 and are emitted from the light emitting surface of the color combination prism 13, and simultaneously, the visible light with various colors can be mutually synthesized, so that the requirement of displaying the light rays with various colors is met. The color combining prism 13 is composed of a plurality of light incident surfaces, a plurality of visible lights with different light emitting colors are incident into the color combining prism 13 through the light incident surfaces, and a reflection film layer is arranged in the color combining prism 13 and used for adjusting the emergent angles of the visible lights so that the visible lights incident from the different light incident surfaces can be emitted from the same light emitting surface. Fig. 1 exemplarily illustrates that the infrared light emitting unit 14 is disposed on a light emitting surface of the color combiner prism 13, and the embodiment of the disclosure does not limit the position of the infrared light emitting unit 14, and only the infrared light emitted by the infrared light emitting unit 14 can irradiate the eyes of the viewer.
Fig. 2 is a schematic diagram of a light combining principle of a color combining prism according to an embodiment of the present disclosure, and exemplarily three visible light emitting units, such as a blue visible light emitting unit 111, a green visible light emitting unit 112, and a red visible light emitting unit 113, are disposed on a light emitting surface of the color combining prism 13. The blue visible light emitting unit 111 is disposed opposite to the light emitting surface of the color combining prism 13, so that the blue visible light is directly emitted from the light emitting surface of the color combining prism 13 after being incident on the color combining prism 13; after the green visible light enters the color combination prism 13, the green visible light is reflected by the green reflecting film 21 and then is emitted from the light emitting surface of the color combination prism 13; the red visible light enters the color combining prism 13, is reflected by the red reflecting film 22, and then exits from the light exit surface of the color combining prism 13. It should be noted that, the inner film layer of the color combining prism is set according to the requirement, and is not particularly limited.
The infrared sensing unit 12 is electrically connected to the control unit 15, the infrared sensing unit 12 may be directly electrically connected to the control unit 15, or the infrared sensing unit 12 may be electrically connected to the control unit 15 through another conductive structure. It should be noted that, in the present disclosure, the connection manner between the infrared sensing unit 12 and the control unit 15 is not specifically limited, and may be set according to actual requirements.
The infrared light belongs to invisible light, and an observer cannot see the infrared light, so that the sight of the observer cannot be disturbed by the existence of the infrared light. The infrared light emitting unit 14 is provided, infrared light is emitted to the eyes of the viewer by the infrared light emitting unit 14, and the infrared light reflected by the eyes of the viewer can be obtained without affecting the sight of the viewer. The control unit 15 may determine the sight line display area and the onlooker area of the visible light emitting units 11 with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit 12. The sight line display area represents a current viewing angle coverage area of the viewer, and the onlooker area represents an area other than the sight line display area in the visible light emitting unit 11. The sight line display area is an area where the sight line of the viewer is focused, and the onlooker area is an area where the sight line of the viewer cannot be directly focused, so that the number of the light-emitting elements in the sight line display area is large, and the number of the light-emitting elements in the onlooker area is small. The control unit 15 can control the on/off of the light emitting elements in the sight line display area and the observer area of the visible light emitting units 11 with different light emitting colors, and the control unit 15 can control the on density of the light emitting elements in the sight line display area to be greater than that in the observer area, so that a better sight line observation effect is achieved, and the power consumption of the whole light emitting unit is reduced.
This is disclosed through setting up a plurality of different luminous colour's visible light luminescence unit, infrared sensitization unit, color composition prism, infrared luminescence unit and the control unit. And infrared light is emitted to the eyes of the viewer by the infrared light emitting unit, and the infrared light sensing unit senses the infrared light reflected by the eyes of the viewer. The current sight line display area and the onlooker area of the viewer are determined by reflecting infrared light energy, and the starting density of the light-emitting elements in the sight line display area is larger than that in the onlooker area. The power consumption can be reduced and the heat dissipation problem can be improved on the premise of not influencing the visual effect.
In some embodiments, fig. 3 is a schematic cross-sectional view of a partial structure of a display device according to an embodiment of the disclosure. Referring to fig. 3, the infrared light sensing unit 12 is located on a side of any one of the visible light emitting units 11 away from the light incident surface of the color combining prism 13, for example, on a side of the blue visible light emitting unit 111 away from the light incident surface of the color combining prism 13. The substrate of the visible light emitting unit 11 between the light incident surface of the color combining prism 13 and the infrared light sensing unit 12 is a transparent substrate. The infrared light emitting units 14 are located at the light incident surface of the color combining prism and do not overlap with the visible light emitting units 11.
Specifically, the infrared light sensing unit 12 may be disposed on a side of any one of the visible light emitting units 11 away from the color combining prism 13, and since the infrared light reflected by the eyes of the viewer is reflected to the infrared light sensing unit 12, the infrared light reaches the infrared light sensing unit 12 through the incident surface of the color combining prism 13 and the visible light emitting unit 11. Therefore, it is necessary to set the substrate of the visible light emitting unit 11 between the infrared light sensing unit 12 and the light incident surface of the color combining prism 13 as a transparent substrate, and project the substrate by using the gap between the light emitting elements in the visible light emitting unit 11 so as to receive the substrate by the infrared light sensing unit 12. The transparent substrate may be a sapphire substrate or the like. The infrared light emitting units 14 are provided on the light incident surface of the color combining prism 13 so as not to overlap with the visible light emitting units 11. The infrared light emitted by the infrared light emitting unit 14 is incident to the color combining prism 13, and because the infrared light emitting unit 14 adopts a traditional preparation process, in order to enable the infrared light to be emitted, a semi-reflective semi-transparent film is arranged in an area through which the infrared light of the color combining prism 13 passes, so that the infrared light is emitted from a light emitting surface of the color combining prism 13. Fig. 4 is a schematic view illustrating propagation of infrared light on a color combining prism according to an embodiment of the disclosure, and exemplarily, as shown in fig. 4, an infrared light emitting unit 14 is disposed on the color combining prism 13, and the infrared light is incident on the color combining prism 13, reflected by an infrared light semi-reflective and semi-transparent film 23, and then emitted from a light emitting surface of the color combining prism 13. The infrared photosensitive unit 12 and the infrared light-emitting unit are arranged on the color-combining prism 13, so that the structure of the whole device can be reduced, the device is more simplified, and the application is more convenient.
In some embodiments, as shown in fig. 3, the visible light emitting unit 11 includes a visible light emitting element array chip 114 and a driving chip 115.
The visible light emitting element array chip 114 of the visible light emitting unit 11 between the light incident surface of the color combining prism 13 and the infrared light sensing unit 12 is bonded to the driving chip 115 in a hybrid bonding manner, and the driving chip of the visible light emitting unit 11 between the light incident surface of the color combining prism 13 and the infrared light sensing unit 12 is bonded to the infrared light sensing unit 12 in a hybrid bonding manner.
Specifically, the visible light emitting unit 11 includes a visible light emitting array chip 114, and a plurality of light emitting elements arranged in an array are disposed on the visible light emitting array chip 114, and the light emitting elements are turned on to emit visible light of corresponding colors to the light incident surface of the color combining prism 13. The visible light emitting unit further includes a driving chip 115, and the driving chip 115 controls the on/off of the light emitting elements on the visible light emitting array chip 114. The visible light emitting element array chip 114 and the driving chip 115 are bonded by hybrid bonding, and the driving chip of the visible light emitting unit 11 and the infrared light sensing unit 12 are also bonded by hybrid bonding. Hybrid bonding does not produce a sharp bump and the surface of the specially fabricated dielectric is very smooth. The two chips are attached together at room temperature, the temperature is raised and they are annealed, and the intervening copper expands and bonds strongly together to form an electrical connection and achieve a vertical interconnect. Hybrid bonding can narrow the interconnect pitch to below 10 μm, resulting in higher current carrying capability, tighter copper interconnect density, and better thermal performance. And lower resistance and capacitance are brought, and the power of each interconnection channel is reduced. Meanwhile, the volume of the chip combination is smaller, and the volume structure of the whole device is reduced.
In some embodiments, as shown in fig. 3, a filter 16 is disposed between the infrared light sensing unit 12 and the visible light emitting unit 11, and the filter 16 filters out visible light.
Specifically, a filter 16 is provided between the infrared light sensing unit 12 and the visible light emitting unit 11, for example, by depositing the filter 16 on the infrared light sensing unit 12 by chemical vapor deposition, so that the filter 16 filters out visible light, and infrared light can reach the infrared light sensing unit 12 through the filter 16. The filter 16 filters out visible light, so that interference on the infrared sensing unit 12 caused by the visible light irradiating on the infrared sensing unit 12 can be avoided, and accuracy of the control unit 15 in determining the sight line display area and the bystander area of the visible light emitting unit 11 is affected.
Exemplarily, fig. 5 is a schematic connection diagram of a part of a structure of a display device according to an embodiment of the present disclosure, as shown in fig. 5, a visible light emitting element array chip 114 and a driving chip 115 in a visible light emitting unit 11 are connected by using silicon oxide 17 and a copper pillar 18 as connection layers in a hybrid bonding manner, the driving chip 115 is connected with a filter 16 through the silicon oxide 17 and the copper pillar 18, and an infrared light sensing unit 12 is disposed at a bottom layer of the filter 16. The side of the infrared sensing unit 12 not connected to the filter is provided with a plurality of connection points, and when the infrared signal needs to be directly transmitted, the connection points can be connected to other devices. The driving chip 115 and the infrared sensing unit 12 have a plurality of wires for receiving signals and controlling the light emitting elements to be turned on. It should be noted that, the material adopted for the hybrid bonding in the present disclosure is not limited, and is only exemplified, and may be selected according to actual requirements.
The present disclosure also provides a display apparatus including the display device according to the above embodiment. The embodiments of the present disclosure include the display device as in the above embodiments, and thus have the same or corresponding advantageous effects as the display device described in the above embodiments. For example, the display device may be applied to an AR display device, a VR display device, a human iris unlock device, and the like.
Fig. 6 is a schematic flow chart of a display device driving method provided by the present disclosure, and the present disclosure further provides a display device driving method, which is suitable for the display device according to any of the above embodiments, as shown in fig. 6, including S110 to S130:
and S110, controlling the infrared light-emitting unit to emit infrared light.
The infrared light emitting unit emits infrared light towards the eyes of a viewer, the infrared light belongs to invisible light, and the viewer cannot see the infrared light, so that the sight line of the viewer cannot be interfered by the infrared light, and the eyes of the viewer cannot be damaged.
And S120, acquiring infrared light reflected by eyes of a viewer and sensed by the infrared photosensitive unit.
After infrared light emitted by the infrared light-emitting unit reaches eyes of a viewer, the infrared light is reflected to the infrared light-sensing unit through the eyes of the viewer. The infrared photosensitive unit is electrically connected with the control unit, and transmits the sensed related signals of the infrared light reflected by the eyes of the viewer to the control unit.
S130, determining a sight line display area and an onlooker area of the visible light emitting units with different light emitting colors according to infrared light reflected by eyes of the viewer and sensed by the infrared light sensing units, and controlling the on-density of the light emitting elements in the sight line display area to be larger than that in the onlooker area.
The infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit is compared with the infrared light emitted by the infrared light emitting unit, and the sight line display area and the bystander area of the visible light emitting units with different light emitting colors are determined. The sight line display area represents an area within the current field angle range of a viewer, and the turn-on of the light-emitting elements in the area has a large influence on the visual effect, so that the turn-on density of the light-emitting elements in different areas can be controlled, the density of the sight line display area is greater than that of the bystander area, and the waste of power consumption is reduced on the premise of not influencing the vision of the viewer.
Exemplarily referring to fig. 1 to 5, the infrared light emitting unit 14 emits infrared light to the eyes of the viewer, the infrared light is reflected to the infrared light sensing unit 12 via the eyes of the viewer, and then the infrared light sensed by the infrared light sensing unit and reflected by the eyes of the viewer is transmitted to the control unit 15, and the control unit 15 determines the visual line display area and the onlooker area of the visible light emitting unit 11, thereby turning on the corresponding light emitting elements.
The infrared light sensing unit senses the infrared light reflected by the eyes of the viewer by emitting the infrared light to the eyes of the viewer, then the current sight line display area and the onlooker area of the viewer are determined, and the on-density of the light emitting elements of the sight line display area is controlled to be larger than that of the onlooker area. The power consumption can be reduced and the heat dissipation problem can be improved on the premise of not influencing the visual effect.
In some embodiments, determining the line-of-sight display area and the onlooker area of the plurality of visible light emitting units of different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit comprises:
and determining the eye sight line direction of the viewer according to the infrared light reflected by the eyes of the viewer and sensed by the infrared photosensitive unit.
And determining a coverage area within a preset angle range with the eye sight direction of an observer in the plurality of visible light emitting units with different light emitting colors as a sight line display area, and determining other areas except the sight line display area in the visible light emitting units as an onlooker area.
Specifically, the sight line display area and the spectator area of the visible light emitting units with different light emitting colors are determined, the eye sight line direction of the viewer can be determined, and after the eye sight line direction is determined, the sight line display area is defined by the area in the visible light emitting units, which is covered with the eye sight line direction of the viewer within the preset angle range. The other region of the visible light emitting unit than the sight-line display region is determined as a spectator region.
Illustratively, fig. 7 is a schematic diagram of a visual display area determination provided by the present disclosure. As shown in fig. 7, the eye gaze direction is an OA direction, and the included angles between OB and OA, and between OC and OA are all preset angles, so that the visible light unit region within the range of the included angle formed by OB and OC can be set as the gaze display region, and the other regions are all the spectator regions. The preset angle may be set according to actual conditions, and may be set to ± 15 °, for example. It is understood that the OA direction is the direction in which the line of sight of the viewer is focused, and the area corresponding to the range of the angle formed by OB and OC, that is, the area in which the distance in the direction in which the line of sight is focused is within a certain range, is the area in which the line of sight is mainly focused, and is set as the line of sight display area.
In some embodiments, controlling the on-density of light emitting elements in the line-of-sight display area to be greater than the on-density of light emitting elements in the onlooker area comprises:
and controlling all the light-emitting elements in the sight line display area to be started, and controlling the light-emitting elements in the onlooker area to be started in an interlaced or spaced mode.
The area concerned by the sight of the viewer is mainly the sight line display area, so that all the light-emitting elements in the sight line display area can be turned on, and the viewer can see all the light rays in the sight line display area. The bystander area has little influence on the visual effect, and can be partially opened and selectively opened in an interlaced or spaced mode, so that the power consumption of the light-emitting element is reduced, and the generation of heat is reduced.
In addition, the on density of the light-emitting element is not limited in the present disclosure, and the light-emitting element can satisfy the visual requirement.
In some embodiments, controlling the infrared light emitting unit to emit infrared light includes:
and controlling the infrared light-emitting unit to emit infrared light with a preset pattern.
The infrared light emitting unit emits infrared light with a preset pattern, and if the sight line directions of eyes of a viewer are different, the infrared light pattern changes differently after being reflected by the eyes of the viewer. The direction of the viewer's line of sight can thus be determined by determining the change in the pattern of infrared light sensed by the infrared light-sensing unit. For example, the correspondence between the infrared light pattern and the eye sight direction of the viewer may be stored in advance, and after the infrared light sensing unit senses the infrared light pattern, the eye sight direction of the viewer corresponding to the infrared light pattern may be searched, and the sight line display area and the onlooker area may be determined according to the eye sight direction of the viewer.
It should be noted that, this embodiment is only an example, and other parameters of the infrared light may also be changed to determine the change of the infrared light before and after reflection, so as to determine the eye sight direction of the viewer.
The present disclosure also provides a computer-readable storage medium, wherein the storage medium stores a computer program for executing the display device driving method according to any of the above embodiments.
It should be noted that examples of readable storage media include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples (a non-exhaustive list) of the readable storage medium include: an Electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable Programmable Read-Only Memory (EPROM), an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The storage medium provided by the above-mentioned embodiment of the present disclosure and the method provided by the embodiment of the present disclosure have the same advantages as the method adopted, executed or implemented by the application program or the instruction stored in the storage medium, based on the same inventive concept.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A display device, comprising:
the device comprises a plurality of visible light emitting units with different light emitting colors, an infrared photosensitive unit, a color combination prism, an infrared light emitting unit and a control unit;
the visible light emitting units with different light emitting colors are respectively arranged on different light incident surfaces of the color combination prism; the infrared light sensing unit and the plurality of visible light emitting units with different light emitting colors are electrically connected with the control unit;
the color combination prism is used for synthesizing incident lights of a plurality of visible light emitting units with different light emitting colors and then emitting the incident lights from a light emitting surface of the color combination prism;
the infrared light-emitting unit is used for emitting infrared light to eyes of a viewer; the infrared light sensing unit is used for sensing infrared light reflected by eyes of a viewer;
the control unit is used for determining the sight line display areas and the onlooker areas of the visible light emitting units with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit and controlling the on-density of the light emitting elements in the sight line display areas to be larger than the on-density of the light emitting elements in the onlooker areas.
2. The display device according to claim 1, wherein the infrared light sensing unit is located at a side of any one of the visible light emitting units facing away from the light incident surface of the color combining prism;
the substrate of the visible light-emitting unit between the light incident surface of the color combination prism and the infrared photosensitive unit is a transparent substrate; the infrared light-emitting units are positioned on the light incident surface of the color combination prism and are not overlapped with the visible light-emitting units.
3. The display device according to claim 2, wherein the visible light emitting unit includes a visible light emitting element array chip and a driving chip;
the visible light emitting element array chip of the visible light emitting unit between the light incident surface of the color combining prism and the infrared light sensing unit is bonded with the driving chip in a mixed bonding mode;
and a driving chip of the visible light luminous unit between the light incident surface of the color combination prism and the infrared photosensitive unit is bonded with the infrared photosensitive unit in a mixed bonding mode.
4. The display device according to claim 2, wherein a filter is disposed between the infrared light sensing unit and the visible light emitting unit, and the filter filters out visible light.
5. A display device characterized by comprising a display apparatus according to claims 1-4.
6. A display device driving method applicable to the display device according to any one of claims 1 to 4, comprising:
controlling the infrared light emitting unit to emit infrared light;
acquiring infrared light reflected by eyes of a viewer and sensed by an infrared photosensitive unit;
and determining a sight line display area and an onlooker area of a plurality of visible light emitting units with different light emitting colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit, and controlling the turn-on density of the light emitting elements in the sight line display area to be greater than the turn-on density of the light emitting elements in the onlooker area.
7. The driving method according to claim 6, wherein the determining the visual line display area and the onlooker area of the plurality of visible light emitting units of different light emission colors according to the infrared light reflected by the eyes of the viewer sensed by the infrared light sensing unit comprises:
determining the eye sight direction of the viewer according to the infrared light reflected by the eyes of the viewer and sensed by the infrared photosensitive unit;
and determining a coverage area within a preset angle range with the eye sight direction of the viewer in the visible light emitting units with different light emitting colors as a sight line display area, and determining other areas except the sight line display area in the visible light emitting units as onlooker areas.
8. The driving method according to claim 6, wherein the controlling that the on-density of the light emitting elements in the sight-line display area is greater than the on-density of the light emitting elements in the onlooker area includes:
and controlling all the light-emitting elements in the sight line display area to be started, and controlling the light-emitting elements in the onlooker area to be started in an interlaced or spaced mode.
9. The driving method according to claim 6, wherein the controlling the infrared light emitting unit to emit the infrared light includes:
and controlling the infrared light emitting unit to emit infrared light with a preset pattern.
10. A computer-readable storage medium, characterized in that the storage medium stores a computer program for performing the method of any of the preceding claims 6-9.
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| CN202210604088.2A CN114675428A (en) | 2022-05-31 | 2022-05-31 | Display device, display equipment, driving method and storage medium |
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