CN111798786A - Driving method of display device - Google Patents
Driving method of display device Download PDFInfo
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- CN111798786A CN111798786A CN202010633261.2A CN202010633261A CN111798786A CN 111798786 A CN111798786 A CN 111798786A CN 202010633261 A CN202010633261 A CN 202010633261A CN 111798786 A CN111798786 A CN 111798786A
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- sensing signal
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004065 semiconductor Substances 0.000 description 4
- 210000004247 hand Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
Abstract
A driving method of a display device is provided. The driving method of the display device includes the steps of: the sensing elements in the sub-display areas of each display area are used for sensing to obtain a plurality of sensing signal quantities of the sub-display areas of each display area. The display area is stopped or continuously displayed according to whether the number of the sensing signal difference ratios of the sub-display areas of the display area, which is greater than 20%, exceeds a preset number or not and according to whether the sensing signal quantities of the sub-display areas of the display area change within a preset time or not.
Description
Technical Field
The present invention relates to a driving method, and more particularly, to a driving method of a display device.
Background
The development trend of mobile electronic devices is to be portable, large screen, power saving and foldable. Foldable display devices (e.g. foldable mobile phones) are used for many applications, such as: data transmission of watching movies, playing games, communication and the like causes that the foldable display device consumes much power. Therefore, it is one of the major points of the present development how to develop a driving method capable of saving power for a display device.
Disclosure of Invention
The invention provides a driving method of a display device, which can save electricity for the display device.
The driving method of the display device is used for driving the display device, the display device is provided with a plurality of display areas and a plurality of sensing elements, each display area is divided into a plurality of sub-display areas, and at least one sensing element is arranged in each sub-display area. The driving method of the display device includes: sensing the sensing elements in the sub-display areas of each display area to obtain a plurality of sensing signal quantities of the sub-display areas of each display area, wherein the sensing signal quantity of any one of the sub-display areas is I, the sensing signal quantity of the other one of the sub-display areas is I ', and each sub-display area has a sensing signal difference ratio (| I-I' |/I); the display area is stopped or continuously displayed according to whether the number of the sensing signal difference ratios of the sub-display areas of the display area, which is greater than 20%, exceeds a preset number or not, and according to whether the sensing signal quantities of the sub-display areas of the display area change within a preset time or not.
In an embodiment of the invention, the number of the sensing signal difference ratios of the sub-display areas of the display area larger than 20% exceeds a preset number, and the sensing signal amounts of the sub-display areas of the display area are substantially unchanged within a preset time, so that the display area stops displaying.
In an embodiment of the invention, if the number of the sensing signal difference ratios of the sub-display areas of the other display area greater than 20% does not exceed the preset number, the other display area continues to display.
In an embodiment of the invention, an area of each sub-display area is greater than 1cm2And the preset number is 3.
In an embodiment of the invention, an area of each sub-display area is greater than 1cm2And the preset time is 3 seconds.
In an embodiment of the invention, the display device further includes at least one bendable region, and the at least one bendable region is disposed between the plurality of display regions.
In an embodiment of the invention, the plurality of sensing elements are not disposed in the at least one bendable region.
In an embodiment of the invention, the one display area is fixedly disposed behind the other display area, and the display directions of the plurality of display areas are opposite.
In an embodiment of the invention, the plurality of display regions includes a first display region, a second display region and a third display region, the display device further has a first bendable region and a second bendable region, the first bendable region is disposed between the first display region and the second display region, and the second bendable region is disposed between the second display region and the third display region.
In an embodiment of the invention, the plurality of sensing elements includes a plurality of photo sensing elements or a plurality of capacitive sensing elements.
Drawings
Fig. 1 is a front view of a display device 10 according to an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of a display device 10 according to an embodiment of the invention.
Fig. 3 is a flowchart illustrating a driving method of a display device according to an embodiment of the invention.
Fig. 4 shows the display device 10 according to an embodiment of the invention in a first situation of use.
Fig. 5 shows the display device 10 according to an embodiment of the invention in a second situation of use.
Fig. 6 shows the display device 10 according to an embodiment of the invention in a third situation of use.
Fig. 7 is a schematic perspective view of a display device 10A according to an embodiment of the invention.
Fig. 8 is a schematic perspective view of a display device 10B according to an embodiment of the invention.
Fig. 9 is a schematic cross-sectional view of a display device 10C according to an embodiment of the invention.
Fig. 10 is a schematic cross-sectional view of a display device 10D according to an embodiment of the invention.
List of reference numerals
10. 10A, 10B, 10C, 10D display device
110 base plate
120 switching element
121 semiconductor pattern
122 gate insulating layer
123 gate electrode
124 source electrode
125: drain electrode
130 pixel electrode
140. 140D sensing element
200 display area
210. 210-1, 210-2, 210-3, 210-n sub-display regions
200A first display area
200B second display area
200C third display area
300 bendable region
300A first bendable area
300B second bendable region
d1, d2 directions
S1, S2, S3, S4, S5, S6
PX display pixel
U is the user
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers (or numbers) are used in the drawings and the description to refer to the same or like parts.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" may refer to physical and/or electrical connections. Further, "electrically connected" or "coupled" may mean that there are additional elements between the elements.
As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable range of deviation of the specified value as determined by one of ordinary skill in the art, taking into account the measurement in question and the specified amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations of the stated value, or within ± 30%, ± 20%, ± 10%, ± 5%. Further, as used herein, "about", "approximately" or "substantially" may be selected based on optical properties, etch properties, or other properties, with a more acceptable range of deviation or standard deviation, and not all properties may be applied with one standard deviation.
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Fig. 1 is a front view of a display device 10 according to an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of a display device 10 according to an embodiment of the invention.
Fig. 1 omits the display pixel PX and the sensing element 140 of fig. 2.
Referring to fig. 1 and 2, the display device 10 has a plurality of display regions 200 and a plurality of sensing elements 140. Each display area 200 is divided into a plurality of sub-display areas 210.
Specifically, each sub-display region 210 of each display region 200 has at least one display pixel PX. For example, in the present embodiment, each display pixel PX may include a switching element 120 and a pixel electrode 130 electrically connected to the switching element 120, wherein the switching element 120 may include a thin film transistor having a semiconductor pattern 121, a gate electrode 123, a gate insulating layer 122 disposed between the semiconductor pattern 121 and the gate electrode 123, and a source electrode 124 and a drain electrode 125 electrically connected to two different regions of the semiconductor pattern 121, respectively, and the pixel electrode 130 is electrically connected to the drain electrode 125.
In the present embodiment, the area of each sub-display region 210 can be close to the pressing area of a finger of the user U. For example, the area of each sub-display region 210 may be greater than 1cm2(ii) a The shape of each sub-display region 210 is preferably square; however, the present invention is not limited thereto.
At least one sensing element 140 is disposed in each sub-display region 210. That is, the plurality of sensing elements 140 of the display device 10 are distributed in the plurality of sub-display regions 210 of the plurality of display regions 200, rather than being fixed only at a certain position of the display device 10.
In the present embodiment, the sensing elements 140 distributed in the sub-display regions 210 may be selectively capacitive sensing elements. The capacitive sensing element has a conductive layer (not shown); when the user U touches the display device 10, the conductive layer of the sensing element 140 can enable the user U to generate a capacitive coupling effect at the touch position, so as to obtain a plurality of sensing signal values of the sub-display regions 210 of each display region 200. However, the invention is not limited thereto, and in other embodiments, the sensing element 140 may be other kinds of sensors.
In the present embodiment, the capacitive sensing element is, for example, a screen printed stack on the substrate 110 by screen printing (silk screen printing); the screen printing stack may include a filling layer (not shown) and a conductive layer disposed on the filling layer; however, the present invention is not limited thereto.
In the present embodiment, the display device 10 is a foldable display; the foldable display device comprises at least one bendable region 300; the at least one bendable region 300 is disposed between the plurality of display regions 200. For example, in the present embodiment, the display device 10 may have a first display area 200A, a second display area 200B, and a first bendable area 300A disposed between the first display area 200A and the second display area 200B. In other words, the display device 10 has two display regions 200 and one bendable region 300. However, the present invention is not limited thereto, and the number of the display regions 200 and/or the number of the bendable regions 300 may be varied according to actual requirements.
In the present embodiment, the bendable region 300 also has a display function. Specifically, the bendable region 300 also includes a plurality of display pixels PX. When the display device 10 is to be used, the user U may unfold or bend the display device 10 outward; when the display device 10 is unfolded, the user U can view a large screen composed of the plurality of display areas 200 and the bendable area 300; when the display device 10 is bent outward, the user U can view the small picture displayed in at least one of the display areas 200.
It is noted that in some usage situations, the user U needs to view one display area 200 (e.g., the first display area 200A) and not another display area (e.g., the second display area 200B). At this time, the display area (e.g., the second display area 200B) that is not needed to be viewed can be stopped to achieve the power saving effect. This is illustrated below with reference to fig. 1, 2, 3 and 4.
Fig. 3 is a flowchart illustrating a driving method of a display device according to an embodiment of the invention.
Referring to fig. 1, 2 and 3, a driving method of the display device 10 includes: sensing the sensing elements 140 in the sub-display regions 210 of each display region 200 to obtain a plurality of sensing signal quantities of the sub-display regions 210 of each display region 200, wherein the sensing signal quantity of any one of the sub-display regions 210 is I, the sensing signal quantity of another one of the sub-display regions 210 is I ', and each sub-display region 210 has a sensing signal difference ratio (| I-I' |/I); and determining to stop or continue displaying the display area 200 according to whether the number of the sensing signal difference ratios of the sub-display areas 210 of the display area 200, which is greater than 20%, exceeds a preset number, and according to whether the sensing signal amounts of the sub-display areas 210 of the display area 200 change within a preset time.
Specifically, step S1 may be performed first: the sensing elements 140 in the sub-display regions 210 of each display region 200 are enabled to sense to obtain a plurality of sensing signal quantities of the sub-display regions 210 of each display region 200, wherein the sensing signal quantity of any one of the sub-display regions 210 is I, the sensing signal quantity of another one of the sub-display regions 210 is I ', and each sub-display region 210 has a sensing signal difference ratio (| I-I' |/I). Subsequently, step S2 is performed: it is determined whether the number of the sensing signal difference ratios of the sub-display sections 210 of each display section 200 greater than 20% exceeds a preset number. In step S2, if it is determined that the number of the sensing signal difference ratios of the sub-display sections 210 of the display section 200 exceeds the predetermined number, then step S3 is performed: it is determined whether the sensing signal amount of the sub-display regions 210 of the display region 200 changes within a preset time. In step S3, if it is determined that the sensing signal levels of the sub-display areas 210 of the display area 200 are not substantially changed within the preset time, the method proceeds to step S4: the display area 200 is stopped. In step S3, if it is determined that the sensing signal levels of the sub-display areas 210 of the display area 200 change within the preset time, the method proceeds to step S5: the display area 200 is made to display continuously. On the other hand, in step S2: if the number of the sensing signal difference ratios greater than 20% in the sub-display areas 210 of the display area 200 does not exceed the preset number, step S6 is performed: the display area 200 is made to display continuously.
Fig. 4 shows the display device 10 according to an embodiment of the invention in a first situation of use.
In the first usage situation, the display device 10 is bent outward, the first display area 200A faces the user U, the second display area 200B faces away from the user U, and the palm of the user U is close to the second display area 200B. In the following, a driving method of the display device 10 in the first usage situation is described by way of example with reference to fig. 1, 2, 3 and 4.
Referring to fig. 1, the sub-display regions 210 of each display region 200 include a sub-display region 210-1, a sub-display region 210-2, a sub-display region 210-3, and a sub-display region 210-n. Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in the first use case, first, step S1 is performed: the sensing elements 140 In the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and the second display region 200B are used for sensing to obtain sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the second display region 200B.
Each of the sub-display regions 210 of the first display region 200A and the second display region 200B has a sensing signal difference ratio. For example, the sensing signal difference ratio of the sub-display region 210-1 of the first display region 200A is (| I1-I2|/I1), the sensing signal difference ratio of the sub-display region 210-2 of the first display region 200A is (| I2-I3|/I2), and the sensing signal difference ratio of the sub-display region 210-3 of the first display region 200A is (| I3-I4 |/I3); the sensing signal difference ratio of the sub-display region 210-1 of the second display region 200B is (| i1-i2|/i1), the sensing signal difference ratio of the sub-display region 210-2 of the second display region 200B is (| i2-i3|/i2), and the sensing signal difference ratio of the sub-display region 210-3 of the second display region 200B is (| i3-i4|/i 3).
Subsequently, step S2 is performed: it is determined whether the number of the sensing signal difference ratios greater than 20% in the sub-display sections 210 of the first display section 200A and the second display section 200B exceeds a preset number m 1. In the first use case, the number of the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A touched by the user U is less, in step S2, it is determined that the number of the sensing signal difference ratios of the sub-display regions 210 of the first display region 200A greater than 20% does not exceed the preset number m1, and step S6 is performed: the first display area 200A is caused to display continuously. In the present embodiment, the predetermined number m1 is, for example, 3, but the invention is not limited thereto.
On the other hand, in step S2, it is further determined whether the number of the sensing signal difference ratios of the sub-display sections 210 of the second display section 200B greater than 20% exceeds the preset number m 1. In the first usage situation, the sub-display regions 210-1, 210-2, 210-3-210-n of the second display region 200B are touched by the user U by a greater number, and in step S2, it is determined that the number of the difference ratios of the sensing signals of the sub-display regions 210 of the second display region 200B greater than 20% exceeds the predetermined number m1, and step S3 is performed: whether the sensing signal quantities i1, i2, i 3-in of the sub-display areas 210-1, 210-2, 210-3-210-n of the second display area 200B change within the preset time t1 is determined.
In the first use condition, the second display area 200B of the display device 10 is substantially stably supported by the palm of the user U, and in step S3, it is determined that the sensing signal amounts i1, i2, i 3-in of the sub-display areas 210-1, 210-2, 210-3-210-n of the second display area 200B are substantially unchanged within the preset time t1, and step S5 is performed: the second display area 200B is stopped. In the embodiment, the preset time t1 is, for example, 3 seconds, but the invention is not limited thereto.
By the above driving method, in the first use condition, the first display area 200A will display continuously, and the second display area 200B will stop displaying, so that the display device 10 can achieve the power saving effect while meeting the requirement of the user U.
In addition, in the embodiment, in order to avoid the interference signal generated when the user U touches the bendable region 300 while holding the display device 10, the sensing element 140 of the display device 10 may not be disposed in the bendable region 300, but the invention is not limited thereto.
Fig. 5 shows the display device 10 according to an embodiment of the invention in a second situation of use. In the second usage situation, the display device 10 is unfolded, the first display area 200A and the second display area 200B are both facing the user U, the user U holds a portion of the first display area 200A and a portion of the second display area 200B with both hands, the display device 10 rests on both hands of the user U, and only a few fingers (e.g., thumbs of both hands) touch the first display area 200A and the second display area 200B. In the following, a driving method of the display device 10 in the second use case will be described with reference to fig. 1, 2, 3 and 5.
Referring to fig. 1, fig. 2, fig. 3 and fig. 5, in the second use case, first, step S1 is performed: the sensing elements 140 In the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and the second display region 200B are used for sensing to obtain sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the second display region 200B.
Subsequently, step S2 is performed: whether the number of the sensing signal difference ratios of the sub-display areas 210 of the first display area 200A and the second display area 200B greater than 20% exceeds the preset number m1 is determined. In the second use case, the number of the sub-display regions 210-1, 210-2-210-n of the first display region 200A and the second display region 200B touched by the user U is less, in step S2, it is determined that the number of the sensing signal difference ratios of the sub-display regions 210 of the first display region 200A and the second display region 200B greater than 20% does not exceed the preset number m1, and step S6 is performed: the first display area 200A and the second display area 200B are continuously displayed.
By the above driving method, in the second use condition, the first display area 200A and the second display area 200B both display continuously, so that the user U can fully use the display area of the display device 10.
Fig. 6 shows the display device 10 according to an embodiment of the invention in a third situation of use. In the third use case, the user U does not need to use the display device 10, but places the entire palm of the hand on a large area of a display area 200 (such as, but not limited to, the first display area 200A).
Referring to fig. 1, fig. 2, fig. 3 and fig. 6, in a third use case, first, step S1 is performed: the sensing elements 140 In the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and the second display region 200B are used for sensing to obtain sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A and sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the second display region 200B.
Subsequently, step S2 is performed: it is determined whether the number of the sensing signal difference ratios of the sub-display sections 210 of the first display section 200A and the second display section 200B greater than 20% exceeds a predetermined number m2, wherein the predetermined number m2 is greater than the predetermined number m 1. In the present embodiment, m2 is, for example, 12, but the invention is not limited thereto.
In a third use case, the number of the sub-display areas 210-1, 210-2, 210-3-210-n of the first display area 200A touched by the user U is large, and it is determined that the number of the difference ratios of the sensing signals of the sub-display areas 210-1, 210-2, 210-3-210-n of the first display area 200A, which is greater than 20%, exceeds the preset number m2, and the step S3 is performed: whether the sensing signal quantities I1, I2, I3-In of the sub-display regions 210-1, 210-2, 210-3-210-n of the first display region 200A change within the preset time t2 is determined. In the present embodiment, the preset time t2 may be greater than, less than or equal to the preset time t 1.
In the third use case, the palm of the user U stably touches the first display area 200A, and In step S3, it is determined that the sensing signal amounts I1, I2, I3-In of the sub-display areas 210-1, 210-2, 210-3-210-n of the first display area 200A are not substantially changed within the preset time t2, and step S4 is performed: all the display regions (e.g., the first display region 200A and the second display region 200B) of the display device 10 are stopped from being displayed.
By the above driving method, in the third use case, all the display areas 200 of the display device 10 stop displaying (i.e. enter into the sleep mode), so that the display device 10 is more power-saving.
It should be noted that the following embodiments follow the element numbers (reference numbers) and part of the contents of the foregoing embodiments, wherein the same reference numbers are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, which will not be repeated below.
Fig. 7 is a schematic perspective view of a display device 10A according to an embodiment of the invention.
The display device 10A of fig. 7 is similar to the display device 10 of fig. 1. Unlike the display device 10 of fig. 1: in the embodiment of fig. 7, the second display area 200B is fixedly disposed behind the first display area 200A, and the display direction d1 of the first display area 200A is opposite to the display direction d2 of the second display area 200B. In short, the display device 10A is a double-sided display, not a foldable display.
In this embodiment, the display device 10A may be formed by bending the same flexible display panel having the first display area 200A and the second display area 200B outward, or by attaching two display panels having the first display area 200A and the second display area 200B, respectively, which is not limited in the disclosure.
The driving method of the display device is also applicable to the display device 10A of fig. 7, which should be realized by one skilled in the art according to the foregoing description, and will not be repeated here.
Fig. 8 is a schematic perspective view of a display device 10B according to an embodiment of the invention.
The display device 10B of fig. 8 is similar to the display device 10 of fig. 1. Different from the display device 10 of fig. 1, the display device 10B of fig. 8 has a third display area 200C and a second bendable area 300B in addition to the first display area 200A, the second display area 200B and the first bendable area 300A disposed between the first display area 200A and the second display area 200B, wherein the second bendable area 300B is disposed between the second display area 200B and the third display area 200C. In short, the display device 10B can operate in the triple-fold mode.
The driving method of the display device is also applicable to the display device 10B of fig. 8, and those skilled in the art should realize the driving method based on the foregoing description, which is not repeated herein.
Fig. 9 is a schematic cross-sectional view of a display device 10C according to an embodiment of the invention.
The display device 10C of fig. 9 is similar to the display device 10 of fig. 2, with the difference that: in the embodiment of fig. 2, the sensing element 140 is disposed above the pixel structure PX; in the embodiment of fig. 9, the sensing element 140 is disposed below the pixel structure PX. The sensing element 140 disposed under the pixel structure PX can also be applied to the display devices 10, 10A, and 10B of any of the foregoing embodiments.
Fig. 10 is a schematic cross-sectional view of a display device 10D according to an embodiment of the invention. The display device 10D of fig. 10 is similar to the display device 10 of fig. 2, with the difference that: in the embodiment of fig. 10, the sensing element 140D is a light sensing element. The sensing element 140D includes a first electrode 141, a second electrode 143, and a photosensitive layer 142 disposed between the first electrode 141 and the second electrode 143. The sensing element 140D can also be used to replace the function of the sensing element 140 of the display devices 10, 10A, 10B of any of the previous embodiments.
In summary, the driving method of the display device according to the embodiment of the invention determines to stop or continue displaying each display region according to the number of the sensing signal difference ratios of the sub-display regions of each display region being greater than 20% and the update time of the sensing signal amounts of the sub-display regions of each display region. Therefore, the display device is not limited to be only closed to a specific display area, and the display device can perform corresponding actions according to different use situations and with electricity saving according to the requirements of users.
Claims (10)
1. A driving method of a display device is used for driving the display device, the display device is provided with a plurality of display areas and a plurality of sensing elements, each display area is divided into a plurality of sub-display areas, at least one sensing element is arranged in each sub-display area, and the driving method of the display device comprises the following steps:
sensing the sensing elements in the sub-display regions of each display region to obtain sensing signal quantities of the sub-display regions of each display region, wherein one sensing signal quantity of any one of the sub-display regions is I, one sensing signal quantity of another one of the sub-display regions is I ', and each sub-display region has a sensing signal difference ratio (| I-I' |/I); and
and determining to stop or continue displaying the display area according to whether the number of the sensing signal difference ratios of the plurality of sub-display areas of the display area, which is greater than 20%, exceeds a preset number and whether the sensing signal amounts of the plurality of sub-display areas of the display area change within a preset time.
2. The method according to claim 1, wherein if the number of the sensing signal difference ratios of the sub-display sections of the display section greater than 20% exceeds the predetermined number and the sensing signal amounts of the sub-display sections of the display section are not substantially changed within the predetermined time, the display section is stopped.
3. The method according to claim 2, wherein if the number of the sensing signal difference ratios greater than 20% of the sub-display sections of another display section does not exceed the predetermined number, the other display section is caused to continue displaying.
4. The driving method of a display device according to claim 1, wherein the area of each of the sub-display regions is larger than 1cm2And the preset number is 3.
5. The method according to claim 1, wherein the area of each of the sub-display regions is larger than 1cm2And the preset time is 3 seconds.
6. The method according to claim 1, wherein the display device further comprises at least one bendable region disposed between the display regions.
7. The method according to claim 6, wherein the plurality of sensing elements are not disposed in the at least one bendable region.
8. The method according to claim 1, wherein one display region is fixedly disposed behind the other display region, and the display directions of the two display regions are opposite.
9. The method according to claim 1, wherein the plurality of display regions include a first display region, a second display region and a third display region, the display device further comprises a first bendable region and a second bendable region, the first bendable region is disposed between the first display region and the second display region, and the second bendable region is disposed between the second display region and the third display region.
10. The method of driving a display device according to claim 1, wherein the plurality of sensing elements include a plurality of light sensing elements or a plurality of capacitive sensing elements.
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| US201962878857P | 2019-07-26 | 2019-07-26 | |
| US62/878,857 | 2019-07-26 | ||
| TW109108999A TWI714478B (en) | 2019-07-26 | 2020-03-18 | Driving method for display apparatus |
| TW109108999 | 2020-03-18 |
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| CN111798786A true CN111798786A (en) | 2020-10-20 |
| CN111798786B CN111798786B (en) | 2022-11-01 |
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