CN114384994B - Display device, driving method thereof and electronic equipment - Google Patents
Display device, driving method thereof and electronic equipment Download PDFInfo
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- CN114384994B CN114384994B CN202111673843.4A CN202111673843A CN114384994B CN 114384994 B CN114384994 B CN 114384994B CN 202111673843 A CN202111673843 A CN 202111673843A CN 114384994 B CN114384994 B CN 114384994B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000006698 induction Effects 0.000 claims abstract description 114
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000003384 imaging method Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 18
- 230000001965 increasing effect Effects 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3231—Monitoring the presence, absence or movement of users
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
- G06F1/3265—Power saving in display device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- General Engineering & Computer Science (AREA)
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The embodiment of the invention discloses a display device, a driving method thereof and electronic equipment, wherein the display device comprises: a display panel and an infrared light source; the display panel comprises a photosensitive detection area, wherein the photosensitive detection area comprises a plurality of infrared sensing units, and the infrared sensing units are used for sensing reflected light when being started, and the reflected light is emitted by an infrared light source and is reflected by the operation main body; the display panel further comprises a driving module positioned at one side of the photosensitive detection area, wherein the driving module is electrically connected with each infrared sensing unit and is used for collecting the induction quantity of each opened infrared sensing unit when the infrared light source emits light and controlling to close the infrared sensing unit at least part of which is smaller than a first preset induction quantity. In the embodiment of the invention, the driving module independently controls the opening and closing of each infrared sensing unit, and controls the closing of the infrared sensing units with at least partial sensing quantity smaller than the first preset sensing quantity, so that the power consumption can be saved while the infrared sensing effect is not influenced.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display device, a driving method thereof and electronic equipment.
Background
With the development of technology, infrared devices are increasingly used. Existing infrared devices typically employ an infrared light source as an infrared emitting structure. The infrared device also includes an infrared receiving structure.
Infrared light emitted by an infrared light source is divergent light that produces attenuation dissipation during propagation. The reflected light is further dissipated in the reflection path of the infrared receiving structure after being reflected by the finger, so that the infrared reflected light received by the infrared receiving structure is attenuated, and the sensing quantity of the infrared receiving structure is low.
At present, the emission light intensity of the infrared light source is increased by increasing the current of the infrared light source, so that the induction quantity of the infrared receiving structure is increased, and the power consumption of the infrared device is overlarge.
Disclosure of Invention
The embodiment of the invention provides a display device, a driving method thereof and electronic equipment, which are used for solving the problem of high power consumption of the existing infrared display device.
An embodiment of the present invention provides a display device including: a display panel and an infrared light source;
the display panel comprises a photosensitive detection area, wherein the photosensitive detection area comprises a plurality of infrared sensing units, the infrared sensing units are used for sensing reflected light when being started, and the reflected light is emitted by the infrared light source and reflected by the operation main body;
the display panel further comprises a driving module located at one side of the photosensitive detection area, wherein the driving module is electrically connected with each infrared sensing unit, and is used for collecting the induction quantity of each opened infrared sensing unit when the infrared light source emits light, and controlling to close the infrared sensing units at least part of which is smaller than a first preset induction quantity.
The embodiment of the invention also provides a driving method of the display device, which comprises the following steps: the display panel comprises a photosensitive detection area and a driving module positioned at one side of the photosensitive detection area, wherein the photosensitive detection area comprises a plurality of infrared sensing units, and the driving module is electrically connected with each infrared sensing unit;
the driving method of the driving module comprises the following steps:
when the infrared light source emits light, the infrared sensing unit is controlled to be started;
and collecting the induction quantity of each opened infrared induction unit, and controlling to close the infrared induction units at least part of which is smaller than a first preset induction quantity.
The embodiment of the invention also provides electronic equipment, which comprises: the display device as described above.
In the embodiment of the invention, the driving module can independently control the opening and closing of each infrared sensing unit and can also independently collect the induction quantity of each infrared sensing unit; when the driving module detects that the infrared sensing unit with the induction quantity smaller than the first preset induction quantity exists in the photosensitive detection area, the driving module can control to close at least part of the infrared sensing unit with the induction quantity smaller than the first preset induction quantity. The driving module in the display device independently controls the opening and closing of each infrared sensing unit, and the specific driving module can control to close the infrared sensing units with at least partial sensing quantity smaller than the first preset sensing quantity, so that the power consumption can be saved while the infrared sensing imaging effect is not influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, a brief description will be given below of the drawings required for the embodiments or the description of the prior art, and it is obvious that although the drawings in the following description are specific embodiments of the present invention, it is obvious to those skilled in the art that the basic concepts of the device structure, the driving method and the manufacturing method, which are disclosed and suggested according to the various embodiments of the present invention, are extended and extended to other structures and drawings, and it is needless to say that these should be within the scope of the claims of the present invention.
Fig. 1 is a schematic diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a display device according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a display device according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a display device according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of a display device according to another embodiment of the present invention;
FIG. 7 is a schematic diagram of a display device according to another embodiment of the present invention;
fig. 8 is a schematic diagram of a driving method of a display device according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described by means of implementation examples with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the basic concepts disclosed and suggested by the embodiments of the present invention are within the scope of the present invention.
Referring to fig. 1, a schematic diagram of a display device according to an embodiment of the present invention is shown, and referring to fig. 2, a schematic diagram of another display device according to an embodiment of the present invention is shown. The display device provided in this embodiment includes: a display panel 10 and an infrared light source 20; the display panel 10 includes a photosensitive detection area 11, the photosensitive detection area 11 includes a plurality of infrared sensing units 12, the infrared sensing units 12 are used for sensing reflected light when turned on, the reflected light is emitted by an infrared light source 20 and reflected by an operation body, wherein the operation body includes touching the display device with a finger or a specific object, or making a preset gesture, etc.; the display panel 10 further includes a driving module 30 located at one side of the photosensitive detection area 11, where the driving module 30 is electrically connected to each of the infrared sensing units 12, and is configured to collect the induction amount of each of the opened infrared sensing units 12 when the infrared light source 20 emits light, and control to turn off the infrared sensing units 12 at least some of which are smaller than the first preset induction amount.
In the present embodiment, the display panel 10 may be any type of display panel. For example, the display panel 10 is a liquid crystal display panel; alternatively, the optional display panel is a micro light emitting diode display panel; alternatively, the optional display panel is a quantum dot light emitting device display panel, and so on. The type of display panel is not particularly limited in the embodiments of the present invention. The structure of the display panel 10 is not described in detail herein.
The display device further comprises an infrared light source 20, optionally the infrared light source 20 being integrated with the display panel 10. For example, as shown in fig. 1, the front projection of the infrared light source 20 on the light emitting surface of the display panel 10 is located at the upper end of the display panel 10, it is understood that fig. 1 is only an example, and in other embodiments, the infrared light source may be integrated at other locations of the display panel, such as a side portion, a lower portion, and so on.
The optional infrared light source 20 is disposed on the backlight surface side of the display panel 10 and is located in the area covered by the display area 13 of the display panel 10, so that the infrared light source 20 does not occupy the frame space, and a narrow frame can be realized. In other embodiments, the optional infrared light source is located in a non-display area of the display panel, and the location of the infrared light source in the display panel is not limited in embodiments of the present invention.
The display panel 10 includes a photosensitive detection area 11, and the photosensitive detection area 11 includes a plurality of infrared sensing units 12, wherein the infrared sensing units 12 are used for sensing reflected light when turned on, and the reflected light is emitted by the infrared light source 20 and reflected by the operation body. The display panel 10 includes a display area 13, and the display area 13 includes a plurality of sub-pixels. The optional photosensitive detection area 11 at least partially overlaps with the orthographic projection of the display area 13 of the display panel 10 in the direction perpendicular to the display panel 10, so that the frame space occupied by the infrared sensing unit 12 can be reduced, and a narrow frame can be realized. As shown in fig. 2, the orthographic projection of the optional photosensitive detection region 11 in the direction perpendicular to the display panel 10 is located in the display region 13 of the display panel 10.
The infrared light source 20 emits infrared light, and the emitted infrared light is emitted to the light emitting surface of the display panel 10 through the display panel 10 and then is emitted to the operation body, and the operation body may be an object suitable for infrared reflection, such as a user's finger, an inductive object, and the like, without specific limitation. The infrared light is reflected by the operation body and enters the display panel 10, and then the infrared light reflection unit 12 in the display panel 10 can receive the infrared reflection light when being turned on, and the corresponding sensing quantity is produced according to the intensity of the infrared reflection light.
It should be noted that, the infrared light source 20 has scattering property, that is, attenuation and dissipation of light can be generated during the propagation process; in addition, the infrared light source 20 is disposed on the backlight surface side of the display panel 10, and the infrared light is reflected and scattered after passing through the display functional layer of the display panel 10, so that the light is further attenuated and dissipated. Therefore, it can be understood that the infrared reflection light entering the infrared sensing unit 12 is lost, and the operation body is located at different positions of the display panel 10, and the difference of the distance between the operation body and the light emitting surface of the display panel 10 can make the sensing amount of different infrared sensing units 12 nonuniform. It can be obtained that the infrared reflection light received by the infrared sensing unit 12 closer to the infrared light source 20 is relatively stronger, the sensing amount is relatively larger; the infrared reflection light received by the infrared sensing unit 12 far from the infrared light source 20 is relatively weak, and the sensing amount is relatively small.
Based on this, the display panel 10 in this embodiment further includes a driving module 30 located at one side of the photosensitive detection area 11, and the driving module 30 is electrically connected to each of the infrared sensing units 12. The driving module 30 can collect the sensing amount of each infrared sensing unit 12, and can also independently control each infrared sensing unit 12 to be turned on or off. After the driving module 30 obtains the sensing amount of the infrared sensing unit 12, the sensing amount may be determined to determine whether the sensing amount of the infrared sensing unit 12 is smaller than a first preset sensing amount. If the driving module 30 detects that the sensing amount of the infrared sensing unit 12 is smaller than the first preset sensing amount, it may control to turn off the infrared sensing unit 12 with the sensing amount smaller than the first preset sensing amount.
It will be appreciated that the first preset sensing amount is a parameter stored in the driving module 30 in advance and used as a judgment criterion. It is found that when the sensing amount of the infrared sensing unit 12 is smaller than the first preset sensing amount, the contribution of the sensing amount of the infrared sensing unit 12 to the infrared sensing imaging is very small and negligible, so that the power consumption is only increased when the infrared sensing unit 12 is kept on. Based on this, the driving module 30 controls at least part of the infrared sensing units 12 with the sensing amount smaller than the first preset sensing amount to be turned off, so that the infrared sensing imaging effect is not affected, and power consumption is saved.
It should be noted that, if the driving module 30 detects that the sensing amounts of the plurality of infrared sensing units 12 are smaller than the first preset sensing amount, the driving module 30 may control some or all of the infrared sensing units 12 to be turned off. The shutdown rule of the driving module 30 is to preferentially shut down the infrared sensing unit 12 with the smallest sensing amount.
As in the display device shown in fig. 2, the display panel 10 includes an array substrate 101 and a first substrate 102 disposed opposite to the array substrate 101, and the optional infrared sensing unit 12 is disposed on a side of the first substrate 102 facing the array substrate. In other embodiments, the first substrate may be a multi-film structure, and the infrared sensing unit may be disposed between the multi-film layers of the first substrate; or, the optional infrared sensing unit is arranged on one side of the array substrate facing the first substrate; or, the optional infrared sensing unit is arranged on one side of the array substrate, which is away from the first substrate; alternatively, the array substrate may be a multi-film structure, and the infrared sensing unit may be disposed between the multi-film layers of the array substrate.
It can be understood by those skilled in the art that the specific positions of the infrared light source and the infrared sensing unit in the display device are not particularly limited in the embodiment of the invention, so that the infrared light emitted by the infrared light source can be emitted to the light emitting surface of the display panel, and the infrared sensing unit can be ensured to receive the infrared reflected light.
In the embodiment of the invention, the driving module can independently control the opening and closing of each infrared sensing unit and can also independently collect the induction quantity of each infrared sensing unit; when the driving module detects that the infrared sensing unit with the induction quantity smaller than the first preset induction quantity exists in the photosensitive detection area, the driving module can control to close at least part of the infrared sensing unit with the induction quantity smaller than the first preset induction quantity. The driving module in the display device independently controls the opening and closing of each infrared sensing unit, and the specific driving module can control to close the infrared sensing units with at least partial sensing quantity smaller than the first preset sensing quantity, so that the power consumption can be saved while the infrared sensing imaging effect is not influenced.
The optional driving module is further used for generating a first track according to the induction quantity of the opened infrared sensing unit, and controlling the opening of the infrared sensing unit at least partially in the closed state when the first track is detected to be identical with the preset track.
It is understood that the turned-on infrared sensing unit performs infrared sensing. In this embodiment, remote opening of the infrared sensing unit is achieved through gestures.
Specifically, the infrared light source emits light, the user inputs a gesture command, and the turned-on infrared sensing unit receives the infrared reflected light reflected by the operation body and generates an induction quantity. The driving module collects induction quantity of each opened infrared induction unit and generates a first track according to the induction quantity. The gesture input by the user can enable the continuous infrared sensing units to receive infrared reflection light, the driving module obtains sensing quantities of the continuous infrared sensing units, and then the tracks of the continuous infrared sensing units form a first track.
The driving module is also provided with a preset track in advance, a user makes a gesture opening instruction in advance, after the continuous infrared sensing units receive infrared reflection rays, the driving module obtains the sensing quantities of the continuous infrared sensing units, and the track of the continuous infrared sensing units is set as the preset track of the gesture opening and is stored in the driving module.
Based on the above, the driving module compares the first track with the preset track, if the first track and the preset track are consistent, and the gesture instruction corresponding to the first track is the gesture instruction for starting the infrared sensing unit, the driving module controls at least part of the closed infrared sensing unit to be switched into the starting state. If the gesture instruction corresponding to the first track is inconsistent with the gesture instruction, the gesture instruction corresponding to the first track is not a gesture instruction for starting the infrared sensing unit, and the driving module does not switch the state of the closed infrared sensing unit, but performs other related operations corresponding to the first track according to the first track, which is not specifically described.
In this embodiment, the driving module recognizes a gesture input by a user and generates a first track, when detecting that the first track matches with a preset track, the driving module can determine that the gesture input by the user is a gesture for turning on the infrared sensing unit, and at this moment, the driving module controls at least part of the turned-off infrared sensing unit to be switched into an on state, so as to implement gesture turning on.
The optional driving module is also used for controlling to start the infrared sensing units at least partially in a closed state when detecting that the induction quantity of each started infrared sensing unit is larger than a second preset induction quantity; the second preset sensing amount is larger than the first preset sensing amount.
It is understood that the turned-on infrared sensing unit performs infrared sensing. In this embodiment, the state switching of the infrared sensing unit is performed by detecting the sensing amount.
Specifically, the turned-on infrared sensing unit receives infrared reflected light reflected via the operation body and generates a sensing amount. The driving module collects the induction quantity of each opened infrared induction unit and detects the induction quantity. The driving module is pre-stored with a second preset induction quantity, and the second preset induction quantity is an induction quantity which can be achieved by at least one infrared sensing unit when the distance between the operating main body and the display device is smaller, and at the moment, the induction quantity of most infrared sensing units in the photosensitive detection area is larger than or equal to the first preset induction quantity, and the induction quantity can affect infrared sensing imaging.
Based on the detection, the driving module detects that the induction quantity of each opened infrared induction unit is larger than or equal to a second preset induction quantity, the distance between the operating main body and the display device is relatively close, the driving module controls the closed infrared induction units to be opened, infrared induction imaging is participated, and imaging effect is improved.
In this embodiment, the driving module detects the induction amount of each turned-on infrared sensing unit, and when detecting that the induction amount of each infrared sensing unit is greater than or equal to a second preset induction amount, the driving module controls at least one turned-off infrared sensing unit to be turned-on.
Referring to fig. 3, a schematic diagram of another display device according to an embodiment of the invention is shown. As shown in fig. 3, the optional photosensitive detection area 11 includes a first infrared sensing group 111 and a second infrared sensing group 112 in an off state, where the infrared sensing group includes one or more infrared sensing units 12, and a distance between the infrared sensing units 12 and the infrared light source 20 in the second infrared sensing group 112 is greater than a distance between the infrared sensing units 12 and the infrared light source 20 in the first infrared sensing group 111; the driving module 30 is configured to control at least the first infrared sensing set 111 to be turned on.
In this embodiment, the second infrared photosensitive set 112 is far from the infrared light source 20 compared to the first infrared photosensitive set 111, and the first infrared photosensitive set 111 is near to the infrared light source 20. Assuming that both infrared photosensitive groups are in an off state and to be in an on state, since the distance between the infrared sensing units 12 and the infrared light sources 20 in the second infrared photosensitive group 112 is greater than the distance between the infrared sensing units 12 and the infrared light sources 20 in the first infrared photosensitive group 111, the sensing amount of the infrared sensing units 12 in the near-end first infrared photosensitive group 111 is greater than the sensing amount of the infrared sensing units 12 in the far-end second infrared photosensitive group 112.
Based on this, if the sensing amount of the infrared sensing unit 12 in the near-end first infrared sensing set 111 has a larger influence on the infrared sensing imaging in the on state, and the sensing amount of the infrared sensing unit 12 in the far-end second infrared sensing set 112 has a smaller influence on the infrared sensing imaging.
When the driving module needs to turn on one or more infrared sensing units 12, the infrared sensing units 12 in the near-end first infrared sensing group 111 are preferentially turned on, so that the driving module can participate in infrared sensing imaging, and the infrared sensing imaging quality is improved. Optionally, the infrared light source 20 is directed toward the first infrared light sensing group 111, where the infrared light sensing group includes one or more rows of infrared light sensing units 12, and the row direction is perpendicular to the direction in which the infrared light source 20 is directed toward the first infrared light sensing group 111.
The induction amount of at least one infrared induction unit 12 in the first infrared induction group 111 which is optionally turned on is greater than or equal to a first preset induction amount.
In this embodiment, optionally, after the driving module 30 turns on the first infrared sensing group 111 at the near end, the sensing amount of one or more infrared sensing units 12 in the first infrared sensing group 111 is greater than or equal to the first preset sensing amount, so that the first infrared sensing group 111 is kept in the continuously turned-on state, and the sensing amount of at least one infrared sensing unit 12 in the turned-on first infrared sensing group 111 can affect the infrared sensing imaging, so as to improve the quality of infrared sensing imaging.
Optionally, when the sensing amount of at least one infrared sensing unit 12 in the turned-on first infrared sensing set 111 is smaller than the first preset sensing amount, the driving module 30 is further configured to control the second infrared sensing set 112 to be kept turned off.
In this embodiment, after the driving module 30 turns on the first infrared sensing set 111 at the near end, when there is at least one sensing amount of the infrared sensing units 12 less than the first preset sensing amount, because the second infrared sensing set 112 is located at a side of the first infrared sensing set 111 far away from the infrared light source 30, the sensing amount of the at least one infrared sensing unit 12 in the first infrared sensing set 111 has no influence on infrared sensing imaging, and then there may be more sensing amounts of the infrared sensing units 12 in the second infrared sensing set 112 at the far end less than the first preset sensing amount. Therefore, the second infrared photosensitive set 112 has little influence on infrared induction imaging, and the driving module 30 controls to keep the second infrared photosensitive set 112 closed, so that power consumption is saved.
Referring to fig. 4, a schematic diagram of another display device according to an embodiment of the invention is shown. As shown in fig. 4, the optional photosensitive detection area 11 includes a third infrared photosensitive group 113 and a fourth infrared photosensitive group 114 in an on state, the infrared photosensitive group includes one or more infrared sensing units 12, and a distance between the infrared sensing units 12 and the infrared light source 20 in the fourth infrared photosensitive group 114 is greater than a distance between the infrared sensing units 12 and the infrared light source 20 in the third infrared photosensitive group 113; the driving module 30 is configured to control at least the fourth infrared sensing set 114 to be turned off, and the sensing amount of each infrared sensing unit 12 in the fourth infrared sensing set 114 is smaller than the first preset sensing amount.
In the present embodiment, the fourth infrared light sensing set 114 is far from the infrared light source 20 compared with the third infrared light sensing set 113, and the third infrared light sensing set 113 is near to the infrared light source 20. When both the two infrared photosensitive groups are in the on state, since the distance between the infrared sensing unit 12 and the infrared light source 20 in the fourth infrared photosensitive group 114 is greater than the distance between the infrared sensing unit 12 and the infrared light source 20 in the third infrared photosensitive group 113, the sensing amount of the infrared sensing unit 12 in the near-end third infrared photosensitive group 113 is greater than the sensing amount of the infrared sensing unit 12 in the far-end fourth infrared photosensitive group 114.
Based on this, in the on state, the influence of the sensing amount of the infrared sensing unit 12 in the near-end third infrared sensing group 113 on the infrared sensing imaging is large, and the influence of the sensing amount of the infrared sensing unit 12 in the far-end fourth infrared sensing group 114 on the infrared sensing imaging is small.
When detecting that the infrared sensing units 12 in the third infrared sensing group 113 and the fourth infrared sensing group 114 are smaller than the first preset sensing amount, the driving module preferentially turns off the infrared sensing units 12 in the far-end fourth infrared sensing group 114, so that power consumption is reduced while infrared sensing imaging is not affected.
Optionally, the sensing amount of at least one infrared sensing unit 12 in the third infrared sensing set 113 is greater than or equal to the first preset sensing amount, and the driving module 30 is further configured to control to keep the third infrared sensing set 113 turned on.
In this embodiment, after the driving module 30 closes the far-end fourth infrared photosensitive group 114, it detects that the sensing amount of one or more infrared sensing units 12 in the third infrared photosensitive group 113 is greater than or equal to the first preset sensing amount, so that the sensing amount of at least one infrared sensing unit 12 in the third infrared photosensitive group 113 that is characterized as being opened can affect infrared sensing imaging, and the quality of infrared sensing imaging is improved.
Based on this, the driving module 30 is further used to control the third infrared photosensitive group 113 to be kept turned on, so that the infrared imaging quality can be improved.
In the above embodiment, the driving module 30 controls each infrared sensing unit in one infrared sensing group to be turned on or off simultaneously. In the circuit structure, the driving module 30 can be electrically connected with each infrared sensing unit in one infrared sensing group by using one control line, so that each infrared sensing unit in one infrared sensing group is simultaneously turned on or off, the number of control lines is reduced, and the circuit structure is simplified.
Referring to fig. 5, a schematic diagram of another display device according to an embodiment of the invention is shown. As shown in fig. 5, the optional display panel 10 further includes a display area 13, and the display area 13 includes a plurality of sub-pixel units 131; the driving module 30 is further configured to control whether the sub-pixel unit 131 emits light or not. At least a portion of the selectable display area 13 overlaps the photosensitive detection area 11.
Referring to fig. 6, a schematic diagram of another display device according to an embodiment of the invention is shown. As shown in fig. 6, the display area 13 of the display panel 10 includes a plurality of sub-pixel units 131; the driving module 30 is further configured to control whether the sub-pixel unit 131 emits light or not. As shown in fig. 6, the optional photosensitive detection area 11 is located within the display area 13.
In this embodiment, the display area 13 of the display panel 10 includes a plurality of sub-pixel units 131. The display panel 10 may be a liquid crystal display panel, a micro light emitting diode display panel, an organic light emitting display panel, etc., and the display panel 10 may be of different types and the sub-pixel unit 131 may be of different structures. The minimum display unit of the display panel 10 is characterized only by the sub-pixel unit 131, and the structure of the sub-pixel unit 131 is not limited.
At least part of the display area in the display area 13 is overlapped with the photosensitive detection area 11, so that the orthographic projection of at least part of the infrared photosensitive unit 12 on the light emitting surface of the display panel 10 is positioned in the display area 13, the frame space occupied by the photosensitive detection area 11 is reduced, and a narrow frame can be realized. As shown in fig. 5, the photosensitive detection area 11 is located in the display area 13, so that the front projection of all the infrared sensing units 12 on the light emitting surface of the display panel 10 is located in the display area 13, and the frame can be further reduced, so as to realize a narrow frame. The front projection of the optional sub-pixel unit 131 on the light emitting surface of the display panel 10 and the front projection of the infrared sensing unit 12 on the light emitting surface of the display panel 10 do not overlap, so that the infrared sensing unit 12 can receive infrared reflection light conveniently, and the problem that the display is affected due to the fact that the sub-pixel unit 12 is shielded by the infrared sensing unit 12 is avoided.
Referring to fig. 1, the driving module 30 is further electrically connected to the infrared light source 20, and is used for controlling whether the infrared light source 20 emits light or not. In this embodiment, the driving module 30 not only controls each infrared sensing unit 12 individually, but also is electrically connected to the infrared light source 20 for controlling whether the infrared light source 20 emits light or not. Specifically, the working process of the display panel 10 includes an infrared light sensing stage, in which the driving module 30 controls the infrared light source 20 to emit light, and collects the sensing amount of the infrared sensing unit 12 in the on state, and performs a corresponding operation by detecting the sensing amount.
It should be noted that, in other phases than the infrared sensing phase, the optional driving module 30 controls the infrared sensing unit 12 to be in the off state, so that power consumption can be saved.
In the infrared sensing stage, the driving module 30 may control each infrared sensing unit 12 to be turned on. Alternatively, during the infrared sensing phase, the driving module 30 may control one or more infrared sensing groups of the near infrared light source 20 to be turned on, and the driving module 30 may control one or more infrared sensing groups of the far infrared light source 20 to be turned off, so that power consumption may be saved.
Fig. 7 is a schematic diagram of another display device according to an embodiment of the invention. As shown in fig. 7, the alternative display device further includes: the backlight module 40, the infrared light source 20 is disposed in the backlight module 40; in a direction perpendicular to the display panel 10, the infrared light source 20 does not overlap with the infrared sensing unit 12.
In this embodiment, the display device further includes a backlight module 40, the infrared light source 20 is disposed in the backlight module 40, and the backlight module 40 provides a backlight source for the display device. In addition, the driving circuit 30 controls the infrared light source 20 to be turned on or off, and the backlight module 40 supplies power to the infrared light source 20 to emit light when turned on.
In the direction perpendicular to the display panel 10, the infrared light source 20 and the infrared sensing unit 12 do not overlap, so that the infrared light of the infrared light source 20 can exit to the light exit surface of the display panel 10, and then after being reflected by the operation body, the infrared reflected light can be incident to the infrared sensing unit 12.
Based on the same inventive concept, the embodiments of the present invention also provide a driving method of a display device, which may be performed by a driving module implemented in software and/or hardware and integrated in the display device.
Referring to fig. 7, the display device includes: the display panel 10 comprises a photosensitive detection area 11 and a driving module 30 positioned at one side of the photosensitive detection area 11, wherein the photosensitive detection area 11 comprises a plurality of infrared sensing units 12, and the driving module 30 is electrically connected with each infrared sensing unit 12. The driving module 30 is integrated inside the display panel 10. The optional display panel 10 includes an array substrate 101 and a first substrate 102, and the driving module 30 may be disposed at a side of the array substrate 101 facing the first substrate 102. In other embodiments, the driving module may be further disposed at a side of the first substrate facing the array substrate, but is not limited thereto.
Fig. 8 is a schematic diagram of a driving method of a display device according to an embodiment of the invention. As shown in fig. 8, the driving method includes:
step S1, when an infrared light source emits light, controlling an infrared sensing unit to be started;
s2, collecting the induction quantity of each opened infrared induction unit, and controlling to close the infrared induction units at least part of which is smaller than the first preset induction quantity.
In this embodiment, the driving module controls whether the infrared light source emits light or not. The driving module controls the infrared light source to emit light, so that the display panel enters an infrared light sensing stage, and the driving module controls the infrared light sensing unit to be started. The driving module controls the infrared light source to be closed, so that the display panel enters other stages, and the driving module controls the infrared light sensing unit to be closed, so that the power consumption can be saved.
After the display panel enters the infrared light sensing stage, the driving module controls the infrared light sensing unit to be started. And then the driving module independently collects the induction quantity of each opened infrared induction unit and compares the induction quantity of each infrared induction unit with the first preset induction quantity. If the induction quantity of one or more infrared induction units is detected to be smaller than the first preset induction quantity, the driving module controls to close at least part of the infrared induction units of which the induction quantity is smaller than the first preset induction quantity, and power consumption can be saved on the basis that infrared induction imaging is not affected.
Optionally the driving method further comprises:
generating a first track according to the induction quantity of the opened infrared induction unit;
and when the first track is detected to be the same as the preset track, controlling to start the infrared sensing unit at least partially in a closed state. The gesture is realized to open the infrared sensing unit, and user experience is improved.
Optionally the driving method further comprises:
when detecting that the induction quantity of each opened infrared induction unit is larger than a second preset induction quantity, controlling to open the infrared induction units at least partially in the closed state, wherein the second preset induction quantity is larger than the first preset induction quantity. The method comprises the steps of detecting according to the induction quantity of the opened infrared induction units, and determining whether the closed infrared induction units are opened or not according to a judging result, so that when the induction quantity of the infrared induction units is large, the closed infrared induction units are opened in time, more infrared induction units participate in infrared induction imaging, and accuracy of infrared induction results is improved.
The selectable display panel also comprises a display area, wherein the display area comprises a plurality of sub-pixel units; the driving method of the driving module further comprises the following steps:
and controlling whether the sub-pixel units emit light or not. The display panel comprises sub-pixel units, the sub-pixel units emit light in a display stage, and the display panel realizes display.
The optional display panel comprises a display stage and an infrared light sensing stage;
in the display stage, controlling whether the sub-pixel units emit light or not;
in the infrared light sensing stage, controlling whether the infrared light source emits light or not;
the time period of the display phase and the time period of the infrared light sensing phase at least partially overlap.
The optional driving module controls whether the sub-pixel units emit light or not and also controls the infrared sensing unit. Then in the display stage, the driving module controls the sub-pixel units to emit light; in the infrared light sensing stage, the driving module controls the infrared light source to emit light and also controls the infrared sensing unit.
The time period of the display phase and the time period of the infrared light sensing phase at least partially overlap. In the infrared light sensing stage, an infrared light source and an infrared sensing unit work; in the display stage, the sub-pixel units work. The infrared light source and the infrared sensing unit operate independently of the sub-pixel unit, so that the time period of the display stage and the time period of the infrared sensing stage may overlap.
Based on the same inventive concept, the embodiment of the invention also provides an electronic device, which comprises: the display device as in any above embodiments. Referring to fig. 9, a schematic diagram of an electronic device according to an embodiment of the present invention is shown. As shown in fig. 9, the optional electronic device 1 is a smart phone, a tablet computer, an infrared display device, or the like. It will be appreciated that the above-illustrated display device is only a simple illustration, and the display device further includes other structures, which are not described herein again, and the structures of the display devices are correspondingly changed due to different types of display devices.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (18)
1. A display device, comprising: a display panel and an infrared light source;
the display panel comprises a photosensitive detection area, wherein the photosensitive detection area comprises a plurality of infrared sensing units, the infrared sensing units are used for sensing reflected light when being started, and the reflected light is emitted by the infrared light source and reflected by the operation main body;
the display panel further comprises a driving module positioned at one side of the photosensitive detection area, wherein the driving module is electrically connected with each infrared sensing unit, and is used for collecting the induction quantity of each opened infrared sensing unit when the infrared light source emits light and controlling to close the infrared sensing units at least part of which is smaller than a first preset induction quantity;
when the induction quantity of the infrared induction unit is smaller than a first preset induction quantity, the induction quantity of the infrared induction unit contributes to infrared induction imaging in this moment, and the induction quantity can be ignored.
2. The display device according to claim 1, wherein the driving module is further configured to generate a first track according to an induction amount of the turned-on infrared sensing unit, and control the turned-on infrared sensing unit at least partially in a turned-off state when the first track is detected to be identical to a preset track.
3. The display device according to claim 1, wherein the driving module is further configured to control the on of the infrared sensing units at least partially in the off state when it is detected that the sensing amount of each of the infrared sensing units that has been turned on is greater than a second preset sensing amount;
the second preset sensing amount is larger than the first preset sensing amount.
4. A display device according to claim 2 or 3, wherein the photosensitive detection zone comprises a first infrared sensing group and a second infrared sensing group in an off state, the infrared sensing group comprising one or more of the infrared sensing units, the distance between the infrared sensing units and the infrared light source in the second infrared sensing group being greater than the distance between the infrared sensing units and the infrared light source in the first infrared sensing group;
the driving module is used for controlling at least the first infrared sensing group to be started.
5. The display device according to claim 4, wherein the sensing amount of at least one infrared sensing unit in the turned-on first infrared sensing group is greater than or equal to the first preset sensing amount.
6. The display device of claim 4, wherein the amount of sensing of at least one infrared sensing unit in the first set of infrared sensing units that has been turned on is less than the first preset amount of sensing, and the driving module is further configured to control the second set of infrared sensing units to remain turned off.
7. The display device according to claim 1, wherein the light sensing detection area includes a third infrared light sensing group and a fourth infrared light sensing group in an on state, the infrared light sensing group includes one or more of the infrared light sensing units, and a distance between the infrared light sensing unit and the infrared light source in the fourth infrared light sensing group is larger than a distance between the infrared light sensing unit and the infrared light source in the third infrared light sensing group;
the driving module is used for controlling at least closing of the fourth infrared photosensitive group, and the induction quantity of each infrared photosensitive unit in the fourth infrared photosensitive group is smaller than the first preset induction quantity.
8. The display device of claim 7, wherein the sensing amount of at least one infrared sensing unit in the third infrared sensing set is greater than or equal to the first preset sensing amount, and the driving module is further configured to control the third infrared sensing set to remain turned on.
9. The display device according to claim 1, wherein the display panel further comprises a display area including a plurality of sub-pixel units;
the driving module is also used for controlling whether the sub-pixel units emit light or not.
10. The display device of claim 9, wherein at least a portion of the display area overlaps the photosensitive detection area.
11. The display device of claim 1, wherein the driving module is further electrically connected to the infrared light source for controlling whether the infrared light source emits light or not.
12. The display device according to claim 1, further comprising: the backlight module is arranged in the infrared light source;
the infrared light source and the infrared sensing unit do not overlap in a direction perpendicular to the display panel.
13. A driving method of a display device, characterized in that the display device comprises: the display panel comprises a photosensitive detection area and a driving module positioned at one side of the photosensitive detection area, wherein the photosensitive detection area comprises a plurality of infrared sensing units, and the driving module is electrically connected with each infrared sensing unit;
the driving method of the driving module comprises the following steps:
when the infrared light source emits light, the infrared sensing unit is controlled to be started;
collecting the induction quantity of each opened infrared induction unit, and controlling to close the infrared induction units at least part of which is smaller than a first preset induction quantity;
when the induction quantity of the infrared induction unit is smaller than a first preset induction quantity, the induction quantity of the infrared induction unit contributes to infrared induction imaging in this moment, and the induction quantity can be ignored.
14. The driving method according to claim 13, characterized by further comprising:
generating a first track according to the induction quantity of the opened infrared induction unit;
and when the first track is detected to be the same as a preset track, controlling to start the infrared sensing unit at least partially in a closed state.
15. The driving method according to claim 13, characterized by further comprising:
when detecting that the induction quantity of each opened infrared induction unit is larger than a second preset induction quantity, controlling to open the infrared induction units at least partially in the closed state, wherein the second preset induction quantity is larger than the first preset induction quantity.
16. The driving method according to claim 13, wherein the display panel further comprises a display area including a plurality of sub-pixel units;
the driving method of the driving module further comprises the following steps:
and controlling whether the sub-pixel units emit light or not.
17. The driving method according to claim 16, wherein the display panel includes a display stage and an infrared light sensing stage;
in the display stage, controlling whether the sub-pixel units emit light or not;
in the infrared light sensing stage, controlling whether the infrared light source emits light or not;
the time period of the display phase and the time period of the infrared light sensing phase at least partially overlap.
18. An electronic device, comprising: a display device as claimed in any one of claims 1 to 12.
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| CN111813275A (en) * | 2020-06-30 | 2020-10-23 | 厦门天马微电子有限公司 | Display screen, control method and control device of display screen and electronic equipment |
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| CN108646949B (en) * | 2018-06-04 | 2024-03-19 | 京东方科技集团股份有限公司 | Photoelectric detection circuit and method, array substrate, display panel and fingerprint identification method |
| EP3637472A1 (en) * | 2018-10-08 | 2020-04-15 | Samsung Electronics Co., Ltd. | Organic light emitting diode display panels and display devices including the same |
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| CN105681557A (en) * | 2016-01-15 | 2016-06-15 | 广东欧珀移动通信有限公司 | Method and device for controlling infrared proximity sensor |
| CN109409269A (en) * | 2018-10-16 | 2019-03-01 | 维沃移动通信有限公司 | The control method of screen assembly, electronic equipment and screen assembly |
| CN111813275A (en) * | 2020-06-30 | 2020-10-23 | 厦门天马微电子有限公司 | Display screen, control method and control device of display screen and electronic equipment |
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