CN114384994A - Display device, driving method thereof and electronic equipment - Google Patents

Display device, driving method thereof and electronic equipment Download PDF

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Publication number
CN114384994A
CN114384994A CN202111673843.4A CN202111673843A CN114384994A CN 114384994 A CN114384994 A CN 114384994A CN 202111673843 A CN202111673843 A CN 202111673843A CN 114384994 A CN114384994 A CN 114384994A
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China
Prior art keywords
infrared
sensing
photosensitive
unit
light source
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Granted
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CN202111673843.4A
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Chinese (zh)
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CN114384994B (en
Inventor
朱凌波
赵灿煌
黄建才
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN202111673843.4A priority Critical patent/CN114384994B/en
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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
    • 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
    • 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
    • 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

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, the photosensitive detection area comprises a plurality of infrared photosensitive units, the infrared photosensitive 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 located on one side of the photosensitive detection area, the driving module is electrically connected with each infrared photosensitive unit and used for collecting the induction quantity of each opened infrared photosensitive unit when the infrared light source emits light, and controlling to close the infrared photosensitive units of which at least part of the induction quantity is smaller than a first preset induction quantity. In the embodiment of the invention, the driving module independently controls the on and off of each infrared photosensitive unit and controls at least part of the infrared photosensitive units with the induction quantity smaller than the first preset induction quantity to be turned off, so that the power consumption can be saved while the infrared photosensitive effect is not influenced.

Description

Display device, driving method thereof and electronic equipment
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 science and technology, the application of infrared devices is more and more abundant. Existing infrared devices typically employ an infrared light source as the infrared emitting structure. The infrared device also includes an infrared receiving structure.
The infrared light emitted by the infrared light source is divergent light, and the divergent light generates attenuation dissipation in the process of propagation. The light reflected by the finger and then reflected by the finger is further dissipated in the reflection path of the infrared receiving structure, so that the infrared reflection light received by the infrared receiving structure is attenuated, and the induction quantity of the infrared receiving structure is low.
At present, the emission light intensity of the infrared light source is increased by improving the current of the infrared light source, so that the induction quantity of the infrared receiving structure is improved, 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, and aims to solve the problem of high power consumption of an 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, the photosensitive detection area comprises a plurality of infrared photosensitive units, the infrared photosensitive units are used for sensing reflected light when being started, and the reflected light is emitted by the infrared light source and is reflected by the operation main body;
display panel is still including being located the drive module of sensitization detection zone one side, drive module and every infrared sensitization unit electricity is connected, is used for when infrared light source is luminous, gathers every that has opened infrared sensitization unit's response volume to control is closed at least some response volume and is less than first predetermined response volume infrared sensitization unit.
An embodiment of the present invention further provides a driving method of a display device, where the display device includes: the display panel comprises a photosensitive detection area and a driving module positioned on one side of the photosensitive detection area, the photosensitive detection area comprises a plurality of infrared photosensitive units, and the driving module is electrically connected with each infrared photosensitive unit;
the driving method of the driving module comprises the following steps:
when the infrared light source emits light, the infrared light sensing unit is controlled to be started;
and collecting the induction quantity of each started infrared photosensitive unit, and controlling to close at least part of the infrared photosensitive units with the induction quantity smaller than a first preset induction quantity.
An embodiment of the present invention further provides an electronic device, including: a display device as described above.
In the embodiment of the invention, the driving module can independently control the opening and closing of each infrared photosensitive unit and can also independently collect the induction quantity of each infrared photosensitive unit; when the driving module detects that the infrared light sensing units with the sensing quantity smaller than the first preset sensing quantity exist in the light sensing detection area, the driving module can control to close at least part of the infrared light sensing units with the sensing quantity smaller than the first preset sensing quantity. The driving module in the display device independently controls the opening and closing of each infrared photosensitive unit, and the specific driving module can control the closing of at least part of the infrared photosensitive units with the induction quantity smaller than the first preset induction quantity, so that the power consumption can be saved while the infrared photosensitive imaging effect is not influenced.
Drawings
To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description, although being some specific embodiments of the present invention, can be extended and extended to other structures and drawings by those skilled in the art according to the basic concepts of the device structure, the driving method and the manufacturing method disclosed and suggested by the various embodiments of the present invention, without making sure 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 provided in an embodiment of the invention;
FIG. 3 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another display device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another display device according to an 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 provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the basic idea disclosed and suggested by the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a schematic view of a display device according to an embodiment of the present invention, and fig. 2 is a schematic view of another display device according to an embodiment of the present invention. The display device provided by the embodiment comprises: 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 photosensitive units 12, the infrared photosensitive units 12 are configured to sense reflected light when being turned on, the reflected light is emitted by the infrared light source 20 and is 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, and the driving module 30 is electrically connected to each infrared sensing unit 12, and is configured to collect the sensing amount of each turned-on infrared sensing unit 12 when the infrared light source 20 emits light, and control to turn off at least some of the infrared sensing units 12 whose sensing amount is smaller than a first preset sensing 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; or, the selectable display panel is a micro light-emitting diode display panel; or, the optional display panel is a display panel of a quantum dot light-emitting device, and the like. The type of the display panel is not particularly limited in the embodiment of the present invention. The structure of the display panel 10 will not be described in detail herein.
The display device further comprises an infrared light source 20, optionally the infrared light source 20 is integrated with the display panel 10. For example, as shown in fig. 1, the orthographic 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 in other parts of the display panel, such as the side part, the lower part, and the like.
The optional infrared light source 20 is disposed on the backlight side of the display panel 10 and located in an area covered by the display area 13 of the display panel 10, so that the infrared light source 20 does not occupy a frame space, and a narrow frame can be implemented. In other embodiments, the infrared light source may also be located in a non-display area of the display panel, and the position of the infrared light source in the display panel is not limited in the embodiments of the present invention.
The display panel 10 includes a photosensitive detection region 11, the photosensitive detection region 11 includes a plurality of infrared photosensitive units 12, and the infrared photosensitive units 12 are configured to sense reflected light when turned on, and the reflected light is emitted by the infrared light source 20 and is reflected by the operating 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 and the display area 13 of the display panel 10 are at least partially overlapped in the orthographic projection in the direction perpendicular to the display panel 10, so that the frame space occupied by the infrared photosensitive unit 12 can be reduced, and a narrow frame is realized. As shown in fig. 2, the orthographic projection of the optional photosensitive detection area 11 in the direction perpendicular to the display panel 10 is located within the display area 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 emitted to the operation main body, which may be an object suitable for infrared reflection, such as a user's finger, an induction object, and the like, without specific limitation. The infrared light is reflected by the operating body and enters the display panel 10, and then the infrared sensing unit 12 in the display panel 10 can receive the infrared reflected light when being turned on, and produce corresponding sensing amount according to the intensity of the infrared reflected light.
It should be noted that the infrared light source 20 is scattering, that is, attenuation and dissipation are generated during the propagation of light; in addition, the infrared light source 20 is mostly disposed on the backlight side of the display panel 10, and infrared light passes through the display functional layer of the display panel 10 and is reflected and scattered, so that the light is further attenuated and dissipated. Therefore, it can be understood that the infrared reflected light entering the infrared sensing units 12 is lost, and the different positions of the operation body on the display panel 10 and the different distances between the operation body and the light emitting surface of the display panel 10 all make the sensing amount of the different infrared sensing units 12 non-uniform. It can be found that the infrared light received by the infrared sensing unit 12 closer to the infrared light source 20 is relatively stronger, and the sensing amount is relatively larger; the infrared light reflected 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 region 11, and the driving module 30 is electrically connected to each infrared photosensitive unit 12. The driving module 30 can collect the sensing quantity of each infrared photosensitive unit 12, and can also independently control each infrared photosensitive unit 12 to be turned on or off. After the driving module 30 obtains the sensing amount of the infrared sensing unit 12, it can determine the sensing amount, and 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, the driving module can control to turn off the infrared sensing unit 12 with the sensing amount smaller than the first preset sensing amount.
It is understood that the first predetermined sensing amount is a parameter pre-stored in the driving module 30 and used as a judgment criterion. Research shows that when the sensing quantity of the infrared sensing unit 12 is smaller than the first preset sensing quantity, the contribution of the sensing quantity of the infrared sensing unit 12 to the infrared sensing imaging is very small and negligible, and therefore, 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 a part of the infrared sensing units 12 with the sensing quantity smaller than the first preset sensing quantity to be turned off, so that the infrared sensing imaging effect is not affected, and the power consumption can be saved.
It should be noted that, if the driving module 30 detects that the sensing quantities of the plurality of infrared sensing units 12 are all smaller than the first preset sensing quantity, the driving module 30 may control some or all of the infrared sensing units 12 to be turned off. The driving module 30 is set to turn off the infrared sensing unit 12 with the minimum sensing amount preferentially.
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 photosensitive unit 12 is disposed on a side of the first substrate 102 facing the array substrate. In other embodiments, the first substrate may also be a multi-film structure, and the infrared photosensitive unit may be disposed between the multi-film layers of the first substrate; or, the infrared photosensitive unit can be arranged on one side of the array substrate facing the first substrate; or, the infrared photosensitive unit can be arranged on one side of the array substrate, which is far away from the first substrate; alternatively, the array substrate may be of a multi-film structure, and the infrared photosensitive unit may be disposed between the multiple films of the array substrate.
As can be understood by those skilled in the art, the specific positions of the infrared light source and the infrared photosensitive unit in the display device are not particularly limited in the embodiments of the present invention, and on the basis that it is ensured that the infrared light emitted by the infrared light source can be emitted to the light emitting surface of the display panel, and it is also ensured that the infrared photosensitive unit can receive the infrared reflected light, the infrared light source and the infrared photosensitive unit can be reasonably integrated at other positions in the display device, and there is no particular limitation.
In the embodiment of the invention, the driving module can independently control the opening and closing of each infrared photosensitive unit and can also independently collect the induction quantity of each infrared photosensitive unit; when the driving module detects that the infrared light sensing units with the sensing quantity smaller than the first preset sensing quantity exist in the light sensing detection area, the driving module can control to close at least part of the infrared light sensing units with the sensing quantity smaller than the first preset sensing quantity. The driving module in the display device independently controls the opening and closing of each infrared photosensitive unit, and the specific driving module can control the closing of at least part of the infrared photosensitive units with the induction quantity smaller than the first preset induction quantity, so that the power consumption can be saved while the infrared photosensitive imaging effect is not influenced.
The optional driving module is further used for generating a first track according to the induction quantity of the started infrared photosensitive units, and controlling to start at least part of the infrared photosensitive units in the closed state when the first track is detected to be the same as the preset track.
It can be understood that the turned-on infrared sensing unit performs infrared sensing. In this embodiment, the remote opening of the infrared sensing unit is realized through gestures.
Specifically, the infrared light source emits light, the user inputs a gesture command, and the started infrared light sensing unit receives infrared reflection light reflected by the operation body and generates induction quantity. The driving module collects the induction quantity of each started infrared photosensitive unit and generates a first track according to the induction quantity. The gesture input by the user enables the continuous infrared light sensing units to receive the infrared reflection light, the driving module obtains the induction quantity of the continuous infrared light sensing units, and then the tracks of the continuous infrared light sensing units form a first track.
The driving module is also stored with a preset track in advance, a user makes an opening gesture instruction in advance, after the infrared reflected light is received by the continuous infrared photosensitive units, the driving module acquires the induction quantity of the continuous infrared photosensitive units, the tracks of the continuous infrared photosensitive units are set as the preset track of the opening gesture, and the preset track is stored in the driving module.
Based on this, the driving module compares the first track with the preset track, if the first track is consistent with the preset track, the gesture instruction corresponding to the first track is a gesture instruction for opening the infrared photosensitive unit, and then the driving module controls at least part of the closed infrared photosensitive units to be switched to an opening state. If the two are not consistent, it is indicated that the gesture instruction corresponding to the first track is not the gesture instruction for turning on the infrared photosensitive unit, then the driving module does not switch the state of turning off the infrared photosensitive unit, but executes 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 the gesture input by the user and generates the first trajectory, and when detecting that the first trajectory is matched with the preset trajectory, it can be determined that the gesture input by the user is a gesture for opening the infrared photosensitive unit, and at this time, the driving module controls at least part of the closed infrared photosensitive unit to be switched to an open state, so as to open the gesture.
The optional driving module is further used for controlling to start at least part of the infrared photosensitive units in the closed state when detecting that the induction quantity of each started infrared photosensitive unit is greater than a second preset induction quantity; the second preset induction quantity is larger than the first preset induction quantity.
It can be understood that the turned-on infrared sensing unit performs infrared sensing. In this embodiment, the state of the infrared light sensing unit is switched by detecting the sensing amount.
Specifically, the activated infrared light sensing unit receives infrared reflection light reflected by the operation body and generates induction quantity. The driving module collects the induction quantity of each started infrared photosensitive unit and detects the induction quantity. The drive module is provided with a second preset induction quantity, when the distance between the operation main body and the display device is smaller, the induction quantity value which can be reached by at least one infrared photosensitive unit is preset in the second preset induction quantity, and at the moment, the induction quantity of most infrared photosensitive units in the photosensitive detection area is larger than or equal to the first preset induction quantity, so that the infrared photosensitive imaging is influenced.
Based on this, the drive module detects that the induction quantity of each opened infrared photosensitive unit is greater than or equal to the second preset induction quantity, which indicates that the distance between the operation main body and the display device is relatively close, and the drive module controls the closed infrared photosensitive units to be opened to participate in infrared photosensitive imaging, so that the imaging effect is improved.
In this embodiment, the driving module detects the sensing amount of each turned-on infrared sensing unit, and when the sensing amount of each infrared sensing unit is detected to be greater than or equal to a second preset sensing amount, the driving module controls at least one turned-off infrared sensing unit to be switched to the turned-on state.
Fig. 3 is a schematic view of another display device according to an embodiment of the present invention. As shown in fig. 3, the optional photosensitive detection area 11 includes a first infrared photosensitive group 111 and a second infrared photosensitive group 112 in an off state, the infrared photosensitive group includes one or more infrared photosensitive units 12, and a distance between an infrared photosensitive unit 12 and an infrared light source 20 in the second infrared photosensitive group 112 is greater than a distance between an infrared photosensitive unit 12 and an infrared light source 20 in the first infrared photosensitive group 111; the driving module 30 is used for controlling to start at least the first infrared sensing set 111.
In this embodiment, compared with the first infrared sensing group 111, the second infrared sensing group 112 is far away from the infrared light source 20, and the first infrared sensing group 111 is close to the infrared light source 20. Assuming that both of the two infrared photosensitive sets are in a closed state and in an on state, since the distance between the infrared photosensitive unit 12 and the infrared light source 20 in the second infrared photosensitive set 112 is greater than the distance between the infrared photosensitive unit 12 and the infrared light source 20 in the first infrared photosensitive set 111, the sensing amount of the infrared photosensitive unit 12 in the near-end first infrared photosensitive set 111 is greater than the sensing amount of the infrared photosensitive unit 12 in the far-end second infrared photosensitive set 112.
Therefore, if in the on state, the influence of the sensing amount of the infrared sensing unit 12 in the near-end first infrared sensing group 111 on the infrared sensing imaging is large, and the influence of the sensing amount of the infrared sensing unit 12 in the far-end second infrared sensing group 112 on the infrared sensing imaging is small.
Then, when the driving module needs to start one or more infrared photosensitive units 12, the driving module preferentially starts the infrared photosensitive units 12 in the near-end first infrared photosensitive group 111, so that the driving module can participate in infrared induction imaging, and the infrared induction imaging quality is improved. Optionally, the direction of the infrared light source 20 pointing to the first infrared sensing group 111 may be along, and the infrared sensing group may include one or more rows of infrared sensing units 12, and the row direction is perpendicular to the direction of the infrared light source 20 pointing to the first infrared sensing group 111.
The sensing amount of at least one infrared sensing unit 12 in the first infrared sensing group 111 that is optionally turned on is greater than or equal to a first preset sensing amount.
In this embodiment, optionally, after the drive module 30 opens 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 a first preset sensing amount, so, the first infrared sensing group 111 is kept continuously in the open state, and then the sensing amount of at least one infrared sensing unit 12 in the first infrared sensing group 111 that is opened can affect the infrared sensing imaging, thereby improving the infrared sensing imaging quality.
Optionally, when the sensing amount of at least one infrared sensing unit 12 in the turned-on first infrared sensing group 111 is smaller than a first preset sensing amount, the driving module 30 is further configured to control to keep turning off the second infrared sensing group 112.
In this embodiment, after the driving module 30 starts the first infrared sensing group 111 at the near end, wherein, when the sensing amount of at least one infrared sensing unit 12 is smaller than the first preset sensing amount, because the second infrared sensing group 112 is located at one side of the first infrared sensing group 111 far away from the infrared light source 30, the sensing amount of at least one infrared sensing unit 12 in the first infrared sensing group 111 has no influence on the infrared sensing imaging, and then the sensing amount of more infrared sensing units 12 possibly existing in the second infrared sensing group 112 at the far end is smaller than the first preset sensing amount. Therefore, the second infrared photosensitive group 112 has little influence on the infrared sensing imaging, and the driving module 30 controls to keep closing the second infrared photosensitive group 112, thereby saving power consumption.
Fig. 4 is a schematic view of another display device according to an embodiment of the present invention. 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 photosensitive units 12, and a distance between an infrared photosensitive unit 12 and an infrared light source 20 in the fourth infrared photosensitive group 114 is greater than a distance between an infrared photosensitive unit 12 and an infrared light source 20 in the third infrared photosensitive group 113; the driving module 30 is configured to control to at least turn off the fourth infrared photosensitive group 114, where a sensing amount of each infrared photosensitive unit 12 in the fourth infrared photosensitive group 114 is less than a first preset sensing amount.
In this embodiment, compared with the third infrared photosensitive group 113, the fourth infrared photosensitive group 114 is far away from the infrared light source 20, and the third infrared photosensitive group 113 is close to the infrared light source 20. When both the infrared photosensitive groups are in the on state, since the distance between the infrared photosensitive unit 12 and the infrared light source 20 in the fourth infrared photosensitive group 114 is greater than the distance between the infrared photosensitive unit 12 and the infrared light source 20 in the third infrared photosensitive group 113, the sensing amount of the infrared photosensitive unit 12 in the near-end third infrared photosensitive group 113 is greater than the sensing amount of the infrared photosensitive unit 12 in the far-end fourth infrared photosensitive group 114.
Therefore, in the on state, the influence of the sensing quantity 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 quantity 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 remote fourth infrared sensing group 114, so that the power consumption is reduced while the infrared sensing imaging is not influenced.
Optionally, the sensing amount of at least one infrared sensing unit 12 in the third infrared sensing group 113 is greater than or equal to a first preset sensing amount, and the driving module 30 is further configured to control to keep opening the third infrared sensing group 113.
In this embodiment, after the driving module 30 closes the fourth infrared photosensitive group 114 at the far end, it detects that the sensing amount of one or more infrared photosensitive 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 photosensitive unit 12 in the third infrared photosensitive group 113 that is opened by the representation may affect the infrared sensing imaging, and the infrared sensing imaging quality is improved.
Based on this, the driving module 30 is further configured to control to keep turning on the third infrared photosensitive group 113, so that the infrared photosensitive imaging quality can be improved.
In the above embodiment, the driving module 30 controls the infrared photosensitive units in one infrared photosensitive group to be turned on or turned off simultaneously. In the circuit structure, the driving module 30 can be electrically connected to each infrared photosensitive unit in one infrared photosensitive group by using one control line, so that each infrared photosensitive unit in one infrared photosensitive group is simultaneously turned on or turned off, the number of control lines is reduced, and the circuit structure is simplified.
Fig. 5 is a schematic view of another display device according to an embodiment of the present invention. As shown in fig. 5, the optional display panel 10 further includes a display area 13, the display area 13 including a plurality of sub-pixel units 131; the driving module 30 is also used for controlling whether the sub-pixel unit 131 emits light or not. At least part of the display area in the optional display area 13 overlaps with the photosensitive detection area 11.
Fig. 6 is a schematic view of another display device according to an embodiment of the present invention. 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 also used for controlling whether the sub-pixel unit 131 emits light or not. As shown in FIG. 6, the optional photosensitive detection zone 11 is located within the display zone 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, or the like, and the type of the display panel 10 is different, and the structure of the sub-pixel unit 131 is also different. The minimum display unit of the display panel 10 is represented by only 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 overlaps with the photosensitive detection area 11, and then at least part of the infrared photosensitive units 12 are located in the display area 13 in the orthographic projection of the light-emitting surface of the display panel 10, so that 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 orthographic projections of all the infrared photosensitive units 12 on the light-emitting surface of the display panel 10 are located in the display area 13, which can further reduce the frame and realize a narrow frame. The orthographic projection of the optional sub-pixel unit 131 on the light-emitting surface of the display panel 10 is not overlapped with the orthographic projection of the infrared photosensitive unit 12 on the light-emitting surface of the display panel 10, so that the infrared photosensitive unit 12 can receive infrared reflected light conveniently, and the problem that the display is influenced by the fact that the infrared photosensitive unit 12 shields the sub-pixel unit 12 is avoided.
Referring to fig. 1, the driving module 30 is further electrically connected to the infrared light source 20 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 the driving module 30 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, collects the sensing amount of the infrared light sensing unit 12 in the on state, and performs corresponding operations by detecting the sensing amount.
It should be noted that, in other stages except the infrared sensing stage, 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 can control each infrared sensing set unit 12 to be turned on. Or, in the infrared sensing stage, the driving module 30 may control one or more infrared sensing groups near the infrared light source 20 to be turned on, and the driving module 30 may control one or more infrared sensing groups far from the infrared light source 20 to be kept turned off, so as to save power consumption.
Fig. 7 is a schematic view of another display device according to an embodiment of the present invention. As shown in fig. 7, the optional display device further includes: the backlight module 40, the infrared light source 20 is set up in the backlight module 40; the infrared light source 20 does not overlap the infrared photosensitive unit 12 in a direction perpendicular to the display panel 10.
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 the infrared light source 20 is turned on.
In the direction perpendicular to the display panel 10, the infrared light source 20 and the infrared light sensing unit 12 are not overlapped, so that the infrared light of the infrared light source 20 can be emitted to the light emitting surface of the display panel 10, and then the infrared reflected light can be incident to the infrared light sensing unit 12 after being reflected by the operation body.
Based on the same inventive concept, the embodiment of the invention also provides a driving method of the display device, which can be executed by a driving module, wherein the driving module is realized in a software and/or hardware manner and is integrated in the display device.
Referring to fig. 7, the display device includes: display panel 10 and infrared light source 20, display panel 10 include sensitization detection zone 11 and be located the drive module 30 of sensitization detection zone 11 one side, and sensitization detection zone 11 includes a plurality of infrared sensitization units 12, and drive module 30 is connected with every infrared sensitization unit 12 electricity. 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 on a side of the array substrate 101 facing the first substrate 102. In other embodiments, the driving module may also be disposed on a side of the first substrate facing the array substrate, but is not limited thereto.
Fig. 8 is a schematic diagram illustrating a driving method of a display device according to an embodiment of the present invention. As shown in fig. 8, the driving method includes:
step S1, when the infrared light source emits light, the infrared photosensitive unit is controlled to be started;
and step S2, collecting the induction quantity of each opened infrared photosensitive unit, and controlling to close at least part of the infrared photosensitive units with the induction quantity 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, 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, the display panel enters other stages, and the driving module controls the infrared photosensitive unit to be closed, so that 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 opened. Then the driving module independently collects the induction quantity of each started infrared photosensitive unit and compares the induction quantity of each infrared photosensitive unit with the first preset induction quantity. If the sensing quantity of one or more infrared photosensitive units is smaller than the first preset sensing quantity, the driving module controls to close at least part of the infrared photosensitive units with the sensing quantity smaller than the first preset sensing quantity, and power consumption can be saved on the basis of not influencing infrared photosensitive imaging.
Optionally, the driving method further comprises:
generating a first track according to the induction quantity of the started infrared light sensing unit;
and controlling to open at least part of the infrared photosensitive units in the closed state when the first track is detected to be the same as the preset track. The infrared light sensing unit is started through gestures, and user experience is improved.
Optionally, the driving method further comprises:
when the sensing quantity of each started infrared photosensitive unit is detected to be larger than a second preset sensing quantity, controlling to start at least part of the infrared photosensitive units in the closed state, wherein the second preset sensing quantity is larger than the first preset sensing quantity. The infrared photosensitive unit is opened or not according to the judgment result, so that when the induction quantity of the infrared photosensitive unit is larger, the closed infrared photosensitive unit is opened in time, more infrared photosensitive units participate in infrared photosensitive imaging, and the accuracy of the infrared photosensitive result is improved.
The selectable display panel further comprises a display area, wherein the display area comprises a plurality of sub-pixel units; the driving method of the driving module further includes:
and controlling whether the sub-pixel unit emits light or not. The display panel comprises sub-pixel units which emit light in the display stage, and the display panel realizes display.
The selectable display panel comprises a display stage and an infrared light sensation stage;
in the display stage, controlling whether the sub-pixel unit emits light or not;
controlling whether the infrared light source emits light or not in the infrared light sensing stage;
the time period of the display phase and the time period of the infrared light sensation phase at least partially overlap.
The optional driving module controls whether the sub-pixel unit emits light or not and also controls the infrared light 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 light sensing unit.
The time period of the display phase and the time period of the infrared light sensation phase at least partially overlap. In the infrared light sensing stage, an infrared light source and an infrared light sensing unit work; and in the display stage, the sub-pixel units work. The infrared light source and the infrared light sensing unit are operated independently of the sub-pixel unit, so that the display period and the infrared light sensing period may overlap.
Based on the same inventive concept, an embodiment of the present invention further provides an electronic device, including: a display device as claimed in any preceding embodiment. Fig. 9 is a schematic view of an electronic device according to an embodiment of the present invention. 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 can be understood that the display device shown in the above drawings is only a simple diagram, and the display device further includes other structures, which are not described herein again, and the structure of the display device is changed accordingly when the type of the display device is different.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (18)

1. A display device, comprising: a display panel and an infrared light source;
the display panel comprises a photosensitive detection area, the photosensitive detection area comprises a plurality of infrared photosensitive units, the infrared photosensitive units are used for sensing reflected light when being started, and the reflected light is emitted by the infrared light source and is reflected by the operation main body;
display panel is still including being located the drive module of sensitization detection zone one side, drive module and every infrared sensitization unit electricity is connected, is used for when infrared light source is luminous, gathers every that has opened infrared sensitization unit's response volume to control is closed at least some response volume and is less than first predetermined response volume infrared sensitization unit.
2. The display device according to claim 1, wherein the driving module is further configured to generate a first track according to the sensing amount of the turned-on infrared sensing units, and control to turn on at least some of the turned-off infrared sensing units when detecting that the first track is the same as a preset track.
3. The display device according to claim 1, wherein the driving module is further configured to control to turn on at least some of the infrared light sensing units in the off state when detecting that a sensing amount of each of the turned-on infrared light sensing units is greater than a second preset sensing amount;
the second preset induction quantity is greater than the first preset induction quantity.
4. The display device according to claim 2 or 3, wherein the photosensitive detection area comprises a first infrared photosensitive group and a second infrared photosensitive group in an off state, the infrared photosensitive group comprises one or more infrared photosensitive units, and the distance between an infrared photosensitive unit in the second infrared photosensitive group and the infrared light source is larger than the distance between an infrared photosensitive unit in the first infrared photosensitive group and the infrared light source;
the driving module is used for controlling at least the first infrared photosensitive group to be started.
5. The display device according to claim 4, wherein a sensing amount of at least one of the activated first infrared sensing groups is greater than or equal to the first preset sensing amount.
6. The display device according to claim 4, wherein the sensing amount of at least one of the activated first infrared sensing groups is smaller than the first preset sensing amount, and the driving module is further configured to control to keep the second infrared sensing group turned off.
7. The display device according to claim 1, wherein the photosensitive detection area comprises a third infrared photosensitive group and a fourth infrared photosensitive group in an on state, the infrared photosensitive group comprises one or more infrared photosensitive units, and the distance between an infrared photosensitive unit in the fourth infrared photosensitive group and the infrared light source is greater than the distance between an infrared photosensitive unit in the third infrared photosensitive group and the infrared light source;
the driving module is used for controlling to close at least 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 according to claim 7, wherein a sensing amount of at least one infrared sensing unit in the third infrared sensing group is greater than or equal to the first preset sensing amount, and the driving module is further configured to control to keep turning on the third infrared sensing group.
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 according to claim 9, wherein at least a portion of the display area overlaps the photosensitive detection area.
11. The display device according to 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 infrared light source is arranged in the backlight module;
the infrared light source and the infrared photosensitive unit do not overlap in a direction perpendicular to the display panel.
13. A driving method of a display device, the display device comprising: the display panel comprises a photosensitive detection area and a driving module positioned on one side of the photosensitive detection area, the photosensitive detection area comprises a plurality of infrared photosensitive units, and the driving module is electrically connected with each infrared photosensitive unit;
the driving method of the driving module comprises the following steps:
when the infrared light source emits light, the infrared light sensing unit is controlled to be started;
and collecting the induction quantity of each started infrared photosensitive unit, and controlling to close at least part of the infrared photosensitive units with the induction quantity smaller than a first preset induction quantity.
14. The driving method according to claim 13, further comprising:
generating a first track according to the induction quantity of the started infrared photosensitive unit;
and controlling to open at least part of the infrared photosensitive units in the closed state when the first track is detected to be the same as the preset track.
15. The driving method according to claim 13, further comprising:
when the sensing quantity of each started infrared photosensitive unit is detected to be larger than a second preset sensing quantity, controlling to start at least part of the infrared photosensitive units in the closed state, wherein the second preset sensing quantity is larger than the first preset sensing 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 includes:
and controlling whether the sub-pixel unit emits light or not.
17. The driving method as claimed in claim 16, wherein the display panel comprises a display stage and an infrared sensing stage;
in the display stage, controlling whether the sub-pixel unit emits light or not;
controlling whether the infrared light source emits light or not in the infrared light sensing stage;
the time period of the display stage and the time period of the infrared light sensation stage at least partially overlap.
18. An electronic device, comprising: a display device as claimed in any one of claims 1 to 17.
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