Display device

Abstract

The present invention provides a display device capable of specifying an object to be operated in a configuration in which different objects can be displayed at the same time at viewing angles from two directions in the same display area. A display device includes: a display panel having a display region capable of simultaneously displaying a first screen visible from a first angle of view and a second screen visible from a second angle of view different from the first angle of view; a detection sensor having a detection region overlapping the display region; and a control circuit having a first detection function for detecting an object approaching the display panel, and a second detection function for detecting a touch on a target object displayed on a screen to be operated, the screen to be operated being either a first screen or a second screen, the control circuit having a first detection function for detecting an object approaching the display panel, and a second detection function for detecting a touch on the target object displayed on the screen to be operated. The control circuit determines an operation target screen on the basis of the amount of movement of the coordinates on the detection region acquired by the first detection function.

Description

Technical Field

[0001] The present invention relates to a display device. Background Art

[0002] For example, a display panel using a parallax barrier method has a display device that enables users in two directions to visually recognize different images (for example, Patent Document 1). On the other hand, in recent years, it generally has a configuration with a so-called touch detection function for detecting touches on an object displayed on a display panel.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: JP-A-2005-78092 Summary of the Invention

[0006] In the above-described display device that enables users in two directions to visually recognize different images, for example, a configuration is considered that provides different image information to a user on the right side and a user on the left side of the display device. When a touch detection function is mounted on a display device having such a configuration, it is necessary to determine a touch on an object on the visually recognized image by a user on the right side of the display device or a touch on an object on the visually recognized image by a user on the left side of the display device.

[0007] An object of the present disclosure is to provide a display device that can determine an operation target object in a configuration capable of simultaneously displaying different target objects from two viewing directions in the same display area.

[0008] A display device according to an aspect of the present disclosure includes: a display panel having a display area capable of simultaneously displaying a first image visually recognized from a first viewing angle and a second image visually recognized from a second viewing angle different from the first viewing angle; a detection sensor having a detection area overlapping with the display area; and a control circuit having a first detection function and a second detection function, the first detection function detecting an object approaching the display panel, the second detection function detecting a touch on an object displayed on an operation target image, the operation target image being one of the first image and the second image, and the control circuit determining the operation target image based on a movement amount of coordinates on the detection area obtained by the first detection function.

[0009] A display device according to one aspect of the present disclosure includes: a display panel having a display area capable of simultaneously displaying a first screen visually confirmed from a first viewing angle and a second screen visually confirmed from a second viewing angle different from the first viewing angle; a detection sensor having a detection area overlapping with the display area; and a control circuit having a first detection function and a second detection function, the first detection function detecting an object approaching the display panel, the second detection function detecting a touch on a target object displayed on an operation target screen, the operation target screen being one of the first screen and the second screen, and the control circuit determining the operation target screen based on a difference between a first coordinate on the detection area obtained by the first detection function and a second coordinate on the detection area obtained by the second detection function.

[0010] A display device according to one aspect of the present disclosure includes: a display panel having a display area capable of simultaneously displaying a first screen visually confirmed from a first viewing angle and a second screen visually confirmed from a second viewing angle different from the first viewing angle; a detection sensor having a detection area overlapping with the display area; and a control circuit having a first detection function and a second detection function, the first detection function detecting an object approaching the display panel, the second detection function detecting a touch on a target object displayed on an operation target screen, the operation target screen being one of the first screen and the second screen, and the control circuit generating a heat map weighted by detection values of each of the plurality of areas by dividing the detection area into a plurality of areas in the first detection function, and determining the operation target screen based on the heat map. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a diagram showing an outline of a display device according to an embodiment.

[0012] Figure 2 It is a cross-sectional view showing an example of a schematic configuration of a display area.

[0013] Figure 3A It is a schematic diagram showing an example of a display aspect of a first screen.

[0014] Figure 3B It is a schematic diagram showing an example of a display aspect of a second screen.

[0015] Figure 4 It is a top view showing an example of division of a detection area in a hover detection function.

[0016] Figure 5 It is a top view showing an example of division of a detection area in a touch detection function.

[0017] Figure 6 It is a block diagram showing an example of the schematic configuration of a control circuit according to an embodiment.

[0018] Figure 7A It is a schematic diagram for explaining the concept of the processing according to Embodiment 1.

[0019] Figure 7B It is a schematic diagram for explaining the concept of the processing according to Embodiment 1.

[0020] Figure 8 It is a flowchart showing an example of the processing according to Embodiment 1.

[0021] Figure 9A It is a schematic diagram for explaining the concept of the processing according to Embodiment 2.

[0022] Figure 9B It is a schematic diagram for explaining the concept of the processing according to Embodiment 2.

[0023] Figure 10 It is a flowchart showing an example of the processing according to Embodiment 2.

[0024] Figure 11A It is a schematic diagram for explaining the concept of the processing according to Embodiment 3.

[0025] Figure 11B It is a schematic diagram for explaining the concept of the processing according to Embodiment 3.

[0026] Figure 12 It is a flowchart showing an example of the processing according to Embodiment 3.

[0027] Figure 13A It is a schematic diagram for explaining the concept of the processing according to Embodiment 4.

[0028] Figure 13B It is a schematic diagram for explaining the concept of the processing according to Embodiment 4.

[0029] Figure 14 It is a flowchart showing an example of the processing according to Embodiment 4.

[0030] Among them, the reference numerals are explained as follows:

[0031] 1 Display device

[0032] 2 Display panel

[0033] 3 Detection sensor

[0034] 31 Detection electrode

[0035] 100 Control circuit

[0036] 101 First detection circuit

[0037] 102 Second Detection Circuit

[0038] 103 Processing Circuit

[0039] A First Screen

[0040] AA Display Area

[0041] B Second Screen

[0042] DA Detection Area

[0043] PDA1 First Area

[0044] PDA2 Second Area Detailed Embodiment

[0045] The embodiments for implementing the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited by the content described in the following embodiments. In addition, the constituent elements described below include constituent elements that can be easily conceived by those skilled in the art and substantially identical constituent elements. Moreover, the constituent elements described below can be appropriately combined. In addition, the disclosure is only an example, and appropriate changes that maintain the gist of the invention and are easily conceived by those skilled in the art are of course included in the scope of the present invention. In addition, in order to make the drawings clearer, sometimes the width, thickness, shape, etc. of each part of the drawings are schematically shown compared with the actual form, but this is only an example and does not limit the interpretation of the present invention. In addition, in this specification and each figure, the same reference numerals are assigned to elements that are the same as those described in the accompanying drawings that have already appeared, and the detailed description may be appropriately omitted sometimes.

[0046] In this specification and within the scope of patent protection, when expressing the form of arranging other structures on a certain structure, when only expressing "on...", as long as there is no special limitation, it includes both the case of arranging other structures directly above in contact with a certain structure and the case of arranging other structures above a certain structure via another structure.

[0047] Figure 1 This is a diagram showing an overview of the display device 1 according to the embodiment. In this disclosure, the display device 1 has the following configuration. On the same display area AA of the display panel 2, different screen information can be simultaneously displayed on the first screen A that can be visually confirmed from the perspective a of the user located on the right side in the figure and on the second screen B that can be visually confirmed from the perspective b of the user located on the left side in the figure. In the display panel 2 of this disclosure, as a method of displaying different screens for different perspectives, for example, the parallax barrier method is exemplified, but it is not limited thereto. It should be noted that the image information displayed on the first screen A and the screen information displayed on the second screen B do not have to be different, and they can also be the same image information.

[0048] In addition, as the display panel 2, a liquid crystal display panel having a backlight, for example, is illustrated, but it is not limited thereto. For example, it may also be a self-luminous display panel such as an organic EL display panel (OLED: Organic Light Emitting Diode) or an inorganic EL display panel (micro LED, mini LED).

[0049] In addition, in the present disclosure, the display device 1 is configured to have a so-called hover detection (proximity detection) function for detecting an object (for example, a user's finger) approaching the display panel 2 and a so-called touch detection function for detecting a touch on an object displayed in the display area AA of the display panel 2.

[0050] Figure 2 It is a cross-sectional view showing an example of the schematic configuration of the display area AA. In Figure 2 In the example shown, the display device 1 illustrates a so-called On-cell type device in which a detection sensor 3 that realizes the hover detection function and the touch detection function is mounted on the display panel 2. The detection sensor 3 has a detection area DA that coincides with the display area AA of the display panel 2.

[0051] It should be noted that the display panel 2 may be an integrated so-called In-cell type or hybrid type device with a built-in detection sensor 3. The integration of the detection sensor 3 in the display panel 2 means, for example, including a part of components such as a substrate and electrodes used as the display panel 2 and a part of components such as a substrate and electrodes used as the detection sensor 3.

[0052] Figure 3A It is a schematic diagram showing an example of the display aspect of the first screen A. Figure 3B It is a schematic diagram showing an example of the display aspect of the second screen B. Here, an example is illustrated in which Figure 3A the first screen A shown and Figure 3B the second screen B shown are simultaneously displayed on the display area AA, and different screen information is displayed on the first screen A and the second screen B, respectively. Figure 3A The first screen A shown is a screen visually confirmed from Figure 1 the viewing angle a shown and cannot be visually confirmed from Figure 1 the viewing angle b shown. In addition, Figure 3B the second screen B shown is a screen visually confirmed from Figure 1 the viewing angle b shown and cannot be visually confirmed from Figure 1 the viewing angle a shown.

[0053] Figure 3ABA1, BA2, and BA3 shown are image graphics displayed on the first screen A, and are objects that can be selected to implement the functions assigned to the image graphics by touching positions on the detection area DA that coincides with the image graphics.

[0054] Figure 3B BB shown is an image graphic displayed on the second screen B, and is an object that can be selected to implement the functions assigned to the image graphic by touching positions on the detection area DA that coincides with the image graphic.

[0055] In Figure 3A an example is shown in which three buttons BA1, BA2, and BA3 are displayed on the first screen A. The display device 1 performs the action assigned to the touched button when the user touches one of these buttons BA1, BA2, and BA3.

[0056] In Figure 3B an example is shown in which one button BB is displayed on the second screen B. The display device 1 performs the action assigned to the button BB when the user touches the button BB.

[0057] It should be noted that in the present disclosure, the form of the operation object target for the user to implement the envisioned functional action is not limited to a button-shaped image graphic. In the present disclosure, for example, it includes a form in which a function corresponding to the touch is implemented by touching an arbitrary position on the screen. That is, in the present disclosure, the operation object target is not limited to an image graphic clearly displayed on the screen. Specifically, for example, in a display device such as a navigation system, a form in which an arbitrary location on the map displayed on the screen is set as the operation object target may be included.

[0058] The detection sensor 3 detects a touch on the position of the detection area DA corresponding to each button displayed in the display area AA of the display panel 2 regardless of which of the first screen A and the second screen B the user is visually confirming. Therefore, the display device 1 of the embodiment needs to determine which of the first screen A and the second screen B the user is visually confirming and has performed a touch operation. In other words, the display device 1 needs to determine whether the user's touch operation is equivalent to a touch on the target on the first screen A visually confirmed by the user on the right side of the display device 1 or a touch on the target on the second screen B visually confirmed by the user on the left side of the display device 1.

[0059] Specifically, for example, in Figure 3A and Figure 3BIn the display aspect shown, at the position overlapping with the button BA2 on the first screen A, there is a button BB on the second screen B. In this case, when the user touches a position on the detection area DA overlapping with the button BA2 on the first screen A assuming a functional action corresponding to the button BA2, it may be erroneously determined that the button BB on the second screen B is touched, resulting in an incorrect action.

[0060] In addition, for example, in Figure 3A and Figure 3B In the display form shown, there is no selectable target at the position on the second screen B overlapping with the button BA1 on the first screen A. In this case, when the user touches a position on the detection area DA overlapping with the button BA1 on the first screen A assuming a functional action corresponding to the button BA1, if it is erroneously determined that it is a touch on the second screen B, the action based on this touch operation may not be performed.

[0061] Figure 4 It is a top view showing an example of the division of the detection area DA in the hover detection function. Figure 5 It is a top view showing an example of the division of the detection area DA in the touch detection function. In the present disclosure, as the detection sensor 3, a so-called capacitive touch sensor is exemplified.

[0062] In the detection area DA of the detection sensor 3, a plurality of detection electrodes 31 are provided. The plurality of detection electrodes 31 are arranged in the detection area DA of the detection sensor 3 in the X direction (first direction) and the Y direction (second direction) intersecting with the X direction, and are arranged in a matrix. In other words, the detection sensor 3 has a detection area DA overlapping with the plurality of detection electrodes 31 arranged in the X direction and the Y direction. In the present disclosure, the X direction (first direction) is a direction extending in the left-right direction with respect to the display area AA (detection area DA) of the display device 1, and the Y direction (second direction) is a direction orthogonal to the X direction (first direction). In addition, in the present disclosure, the X direction (first direction) is positive in the direction from left to right with respect to the display area AA (detection area DA) of the display device 1, and the Y direction (second direction) is positive in the direction from bottom to top with respect to the display area AA (detection area DA) of the display device 1.

[0063] In the hover detection function of the present disclosure, the detection area DA is divided into a plurality of first areas PDA1 arranged in rows and columns. In Figure 4 The example shown shows an example in which an area where five detection electrodes 31 are arranged in the X direction and the Y direction respectively is used as one first area PDA1. In other words, in Figure 4In the example shown, a first region PDA1 is constituted by 25 detection electrodes 31 arranged in 5 rows and 5 columns in the X and Y directions respectively.

[0064] In addition, in the touch detection function of the present disclosure, the detection area DA is divided into a plurality of second regions PDA2 arranged in a row and column pattern. In Figure 5 the example shown, an example is shown in which the region corresponding to each detection electrode 31 is set as one second region PDA2. In other words, in Figure 5 the example shown, one detection electrode 31 constitutes one second region PDA2.

[0065] Regarding the capacitance of one detection electrode 31, since the level of the signal obtained in the hover detection becomes small, sufficient detection accuracy cannot be ensured. Therefore, as Figure 4 and Figure 5 shown, the first region PDA1 in the hover detection function is set as a region larger than the second region PDA2 in the touch detection function. Thereby, the capacitance of the first region PDA1 can be set to a capacitance value capable of obtaining the signal level required in the hover detection.

[0066] It should be noted that the form of the detection area DA in the present disclosure is not limited to Figure 4 and Figure 5 the form shown. For example, in the configuration of the display device 1, the detection sensor 3 may be configured to have one detection electrode corresponding to the first region PDA1 respectively. Or for example, in the configuration of the display device 1, it may be configured to include a first detection sensor having a hover detection function and a second detection sensor having a touch detection function respectively. In this case, it may be configured as follows: the first detection sensor has one detection electrode corresponding to the first region PDA1 respectively, and the second detection sensor has one detection electrode corresponding to the second region PDA2 respectively.

[0067] Figure 6 is a block diagram showing an example of the schematic configuration of the control circuit 100 of the embodiment. In Figure 6 the configuration example shown, the control circuit 100 of the display device 1 of the embodiment includes a first detection circuit 101, a second detection circuit 102, and a processing circuit 103.

[0068] The first detection circuit 101 is a circuit for performing hovering detection based on the signal output from the first region PDA1 of the detection sensor 3. The second detection circuit 102 is a circuit for performing touch detection based on the signal output from the second region PDA2 of the detection sensor 3. In the present disclosure, the first detection circuit 101 and the second detection circuit 102 include, for example, an analog front end circuit (AFE: Analog Front End) and an AD conversion circuit.

[0069] The first detection circuit 101 outputs first sensed data representing the detection value in the hovering detection operation to the processing circuit 103. The second detection circuit 102 outputs second sensed data representing the detection value in the touch detection operation to the processing circuit 103.

[0070] The processing circuit 103 is a circuit that outputs the touch detection position (coordinates) to the subsequent HOST (host) 200. The processing circuit 103 is composed of, for example, an MCU (Micro Control Unit), a RAM, an EEPROM, a ROM, etc. The HOST 200 exemplifies a navigation system equipped with the display device 1, etc.

[0071] In addition, in the present disclosure, the processing circuit 103 has the following functions in each process of the following embodiments. Based on the first sensed data from the first detection circuit 101 and the second sensed data from the second detection circuit 102, it determines whether the touch detection position on the detection area DA corresponds to the position corresponding to the target on the first screen (the first screen A visually confirmed from the Figure 1 viewpoint a shown) or the position corresponding to the target on the second screen (the second screen B visually confirmed from the Figure 1 viewpoint b shown), and outputs the determination result to the HOST 200.

[0072] It should be noted that in the configuration of the display device 1, for example, when the detection sensor 3 is configured to have one detection electrode corresponding to the first region PDA1 respectively, the second detection circuit 102 is not required. In this case, it is only necessary to set it to a form having the following functions: the first detection circuit 101 outputs first sensed data representing the detection value in the hovering detection operation or the touch detection operation to the processing circuit 103, and the processing circuit 103 determines whether the touch detection position on the detection area DA corresponds to the position corresponding to the target on the first screen (the first screen A visually confirmed from the Figure 1 viewpoint a shown) or the position corresponding to the target on the second screen (the second screen B visually confirmed from the Figure 1 viewpoint b shown), and outputs the determination result to the HOST 200.

[0073] Next, in the configuration of the control circuit 100 of the display device 1 according to the embodiment in which different objects can be displayed for viewing angles from two directions in the same display area, each embodiment capable of determining the operation target object will be described.

[0074] (Embodiment 1)

[0075] Figure 7A And Figure 7B is a schematic diagram for explaining the concept of the processing of Embodiment 1.

[0076] Figure 7A An example is shown in which the user visually confirms the first screen A from the viewing angle a on the right side of the display area AA (detection area DA) of the display device 1 and wants to operate the object on the first screen A.

[0077] Figure 7B An example is shown in which the user visually confirms the second screen B from the viewing angle b on the left side of the display area AA (detection area DA) of the display device 1 and wants to operate the object on the second screen B.

[0078] When the user is on the right side of the display area AA (detection area DA) of the display device 1, it is assumed that the user's finger moves from right to left when operating the object on the operation screen.

[0079] On the other hand, when the user is on the left side of the display area AA (detection area DA) of the display device 1, it is assumed that the user's finger moves from left to right when operating the object on the operation screen.

[0080] Specifically, as Figure 7A shown, on the detection area DA, when the hover detection position in the X direction moves from x1 on the right to x2 on the left, it is assumed that the user is on the right side of the display device 1 and wants to operate the object on the first screen A visually confirmed from the viewing angle a. Also, as Figure 7B shown, on the detection area DA, when the hover detection position in the X direction moves from x1 on the left to x2 on the right, it is assumed that the user is on the left side of the display device 1 and wants to operate the object on the second screen B visually confirmed from the viewing angle b.

[0081] Through the concept of the processing of Embodiment 1 described above, in Embodiment 1, the moving direction of the user's finger moving on the detection area DA is subjected to hover detection, the moving direction of the user's finger is obtained based on the moving amount in the X direction during the hover detection, and the operation target screen is judged based on the moving direction.

[0082] More specifically, in Embodiment 1, in the hover detection operation, the movement amount Δxm (= x1 - x2) in the X direction between the first hover detection position at the first moment and the second hover detection position at the second moment after the first moment is obtained. When the movement amount Δxm is 0 or more (Δxm ≥ 0), the object on the first screen A is determined as the operation target object. When the movement amount Δxm is less than 0 (Δxm < 0), the object on the second screen B is determined as the operation target object.

[0083] Hereinafter, with reference to Figure 8 the specific processing in the control circuit 100 of the display device 1 according to Embodiment 1 will be described. Figure 8 FIG. is a flowchart showing an example of the processing according to Embodiment 1.

[0084] In Figure 8 the processing shown, for example, when the display device 1 of the embodiment is started along with the start of HOST200 (for example, a navigation system or the like equipped with the display device 1) (step S101), the control circuit 100 performs a baseline scan for acquiring the first sensing data and the second sensing data in a state where no detected object approaches the display panel 2 (step S102).

[0085] After performing the baseline scan (step S102), the control circuit 100 performs a normal hover detection operation and a touch detection operation.

[0086] Specifically, the control circuit 100 performs a hover detection process based on the difference between the first sensing data acquired through the baseline scan (step S102) and the first sensing data acquired through the normal hover detection operation. In addition, the control circuit 100 performs a touch detection process based on the difference between the second sensing data acquired through the baseline scan (step S102) and the second sensing data acquired through the normal touch detection operation.

[0087] In the present disclosure, the normal hover detection operation shows the hover detection operation performed after the baseline scan (step S102). In addition, in the present disclosure, the normal touch detection operation shows the touch detection operation performed after the baseline scan (step S102).

[0088] In addition, in the following description, in the hover detection operation, when an object (for example, a user's finger) approaching the display panel 2 is detected, it is sometimes simply referred to as "hover detected". In addition, when a touch on the display panel 2 is detected, it is sometimes simply referred to as "touch detected".

[0089] The processing circuit 103 of the control circuit 100 determines whether hovering is detected during the hovering detection operation (step S103). In the case where hovering is not detected (step S103: No), the process of step S103 is repeatedly executed.

[0090] In the case where hovering is detected (step S103: Yes), the processing circuit 103 acquires the position where the hovering is detected as the first hovering detection coordinate (step S104), sets the moment when the hovering is detected as the first moment, sets the next moment when hovering is detected as the second moment, and resets the timer value T for measuring the time Tth up to the second moment (T = 0, step S105).

[0091] The processing circuit 103 determines whether the timer value T is equal to or greater than Tth (T ≥ Tth, step S106). In the case where the timer value T is less than Tth (T < Tth, step S106: No), the process of step S106 is repeatedly executed until the timer value T becomes equal to or greater than Tth (T ≥ Tth, step S106: Yes).

[0092] When the timer value T becomes equal to or greater than Tth (T ≥ Tth, step S106: Yes), the processing circuit 103 determines again whether hovering is detected (step S107). In the case where hovering is not detected (step S107: No), the first hovering detection coordinate at the first moment is discarded (step S108), and the processes after step S103 are repeatedly executed.

[0093] In step S107, in the case where hovering is not detected (step S107: No), it can be considered that the hovering detected in the previous process of step S103 was not caused by the user's intentional operation. Therefore, in the case where hovering is not detected in the process of step S107 (step S107: No), the first hovering detection coordinate at the first moment is discarded (step S108), and the process returns to step S103.

[0094] In step S107, in the case where hovering is detected (step S107: Yes), the processing circuit 103 acquires the position where the hovering is detected as the second hovering detection coordinate at the second moment (step S109). Then, the processing circuit 103 calculates the difference Δxm between the X-direction data x1 of the first hovering detection coordinate at the first moment and the X-direction data x2 of the second hovering detection coordinate at the second moment (Δxm = x1 - x2, step S110). This difference Δxm represents the movement amount in the X direction between the first hovering detection position at the first moment and the second hovering detection position at the second moment. More specifically, it is the value obtained by subtracting the X-direction data x2 of the second hovering detection coordinate at the second moment from the X-direction data x1 of the first hovering detection coordinate at the first moment.

[0095] The processing circuit 103 performs the above-described determination process of the touch operation target screen after detecting hovering based on the difference Δxm calculated in the process of step S110, and outputs the touch detection position in the touch operation target screen to the HOST200 based on the result of the determination process.

[0096] Specifically, in the process of step S110, the processing circuit 103 determines whether the calculated difference Δxm is 0 or more (Δxm ≥ 0, step S111).

[0097] When the difference Δxm is 0 or more (Δxm ≥ 0, step S111: Yes), the processing circuit 103 determines that the touch on the display panel 2 after detecting hovering is an operation on the target on the first screen A (step S112). Then, it determines whether a touch is detected (step S114). When no touch is detected (step S114: No), the first hovering detection coordinates at the first time and the second hovering detection coordinates at the second time are discarded (step S115), and the processes after step S103 are repeatedly executed. When a touch is detected (step S114: Yes), the position of the detected touch is set as the touch detection coordinates on the first screen A and output to the HOST200 (step S116).

[0098] When the difference Δxm is less than 0 (Δxm < 0, step S111: No), the processing circuit 103 determines that the touch on the display panel 2 after detecting hovering is an operation on the target on the second screen B (step S113), and determines whether a touch is detected (step S114). When no touch is detected (step S114: No), the first hovering detection coordinates at the first time and the second hovering detection coordinates at the second time are discarded (step S115), and the processes after step S103 are repeatedly executed. When a touch is detected (step S114: Yes), the position of the detected touch is set as the touch detection coordinates on the second screen B and output to the HOST200 (step S116).

[0099] Then, after outputting the touch detection coordinates in the screen determined to be the touch operation target screen to the HOST200 in the above-described determination process of the touch operation target screen (step S116), the processing circuit 103 repeatedly executes the processes after step S103.

[0100] (Embodiment 2)

[0101] Figure 9A And Figure 9B is a schematic diagram for explaining the concept of the process of Embodiment 2.

[0102] Figure 9AAn example is shown where the user visually confirms the first screen A from a viewing angle a on the right side of the display area AA (detection area DA) of the display device 1 and wants to operate an object on the first screen A.

[0103] Figure 9B An example is shown where the user visually confirms the second screen B from a viewing angle b on the left side of the display area AA (detection area DA) of the display device 1 and wants to operate an object on the second screen B.

[0104] When the user is on the right side of the display area AA (detection area DA) of the display device 1, when operating an object on the operation screen, the positional relationship between the hover detection coordinates obtained through the hover detection action and the touch detection coordinates obtained through the touch detection action is as Figure 9A shown. Assuming the X-direction position x1 of the hover detection coordinates, the X-direction position x2 of the touch detection coordinates is located to the left.

[0105] On the other hand, when the user is on the left side of the display area AA (detection area DA) of the display device 1, when operating an object on the operation screen, the positional relationship between the hover detection coordinates obtained through the hover detection action and the touch detection coordinates obtained through the touch detection action is as Figure 9B shown. Assuming the X-direction position x1 of the hover detection coordinates, the X-direction position x2 of the touch detection coordinates is located to the right.

[0106] Based on the concept of the processing of Embodiment 2 described above, in Embodiment 2, the operation target screen is determined based on the difference between the hover detection position in the X direction obtained through the hover detection action and the touch detection position in the X direction obtained through the touch detection action.

[0107] More specifically, in Embodiment 2, the difference Δxp in the X direction between the hover detection position in the hover detection action and the touch detection position in the touch detection action is obtained (Δxp = x1 - x2). When this difference Δxp is 0 or more (Δxp ≥ 0), the object on the first screen A is determined as the operation target object. When the difference Δxp is less than 0 (Δxp < 0), the object on the second screen B is determined as the operation target object.

[0108] Hereinafter, with reference to Figure 10 , the specific processing in the control circuit 100 of the display device 1 of Embodiment 2 will be described. Figure 10 is a flowchart showing an example of the processing of Embodiment 2. In the Figure 10 processing shown, the processing of step S201 and step S202 is the same as the processing of Embodiment 1 ( Figure 8The processes of step S101 and step S102 with reference to) are the same, so the detailed description here is omitted.

[0109] The processing circuit 103 of the control circuit 100 determines whether hovering is detected during the hovering detection operation (step S203). In the case where hovering is not detected (step S203: No), the process of step S203 is repeatedly executed.

[0110] In the case where hovering is detected (step S203: Yes), the processing circuit 103 acquires the position where the hovering is detected as the hovering detection coordinates (step S204).

[0111] Next, the processing circuit 103 determines whether a touch is detected during the touch detection operation (step S205). In the case where no touch is detected (step S205: No), the hovering detection coordinates are discarded (step S206), and the processes after step S203 are repeatedly executed.

[0112] In step S205, in the case where no touch is detected (step S205: No), when it is considered that hovering is detected in the process of step S203, hovering is detected at the position of the finger of the user who wants to perform a touch operation. In the state where the hovering detection coordinates are maintained at this time, if the process of step S205 is repeatedly executed until a touch is detected, the position of the hovering detection coordinates and the position of the touch detection coordinates may become substantially the same. Therefore, in the case where no touch is detected in the process of step S205 (step S205: No), the hovering detection coordinates are discarded (step S206), and the process returns to step S203.

[0113] In the case where a touch is detected (step S205: Yes), the processing circuit 103 acquires the position of the touch detection as the touch detection coordinates (step S207). Then, the processing circuit 103 calculates the difference Δxp (Δxp = x1 - x2, step S208) between the X-direction data x1 of the hovering detection coordinates and the X-direction data x2 of the touch detection coordinates. More specifically, this difference Δxp is the value obtained by subtracting the X-direction data x2 of the touch detection coordinates from the X-direction data x1 of the hovering detection coordinates.

[0114] In the process of step S110, the processing circuit 103 performs a determination process of the touch operation target screen when acquiring the touch detection coordinates based on the calculated difference Δxp, and outputs the touch detection position in the touch operation target screen to HOST200 based on the result of this determination process.

[0115] Specifically, in the process of step S208, the processing circuit 103 determines whether the calculated difference Δxp is 0 or more (Δxp ≥ 0, step S209).

[0116] When the difference Δxp is 0 or more (Δxp≥0, step S209: Yes), the processing circuit 103 determines that the operation when obtaining the touch detection coordinates is an operation with respect to the target object on the first screen A (step S210), and outputs the obtained touch detection coordinates as the position on the first screen A to the HOST200 (step S212).

[0117] When the difference Δxp is less than 0 (Δxp<0, step S209: No), the processing circuit 103 determines that the operation when obtaining the touch detection coordinates is an operation with respect to the target object on the second screen B (step S211), and outputs the obtained touch detection coordinates as the position on the second screen B to the HOST200 (step S212).

[0118] Then, after outputting the touch detection coordinates in the screen determined to be the touch operation target screen to the HOST200 in the above-described determination process of the touch operation target screen (step S212), the processing circuit 103 repeatedly executes the processing after step S203.

[0119] It should be noted that in the processing of the above-described Embodiment 2, a form in which the hover detection action is executed and then the touch detection action is executed is illustrated, but it is not limited thereto. For example, a form in which the touch detection action is executed and then the hover detection action is executed, or a form in which the hover detection action and the touch detection action are executed simultaneously may be used.

[0120] (Embodiment 3)

[0121] Figure 11A And Figure 11B is a schematic diagram for explaining the concept of the processing of Embodiment 3.

[0122] Figure 11A Shows the first sensing data of each first area PDA1 obtained by the first detection circuit 101 in the case where the user visually confirms the first screen A from a viewing angle a on the right side of the display area AA (detection area DA) of the display device 1 and wants to operate the target object on the first screen A. Here, a heat map weighted by the first sensing data of each first area PDA1 obtained by the first detection circuit 101 is illustrated. In the present disclosure, corresponding to the first areas PDA1 arranged in a row and column shown in Figure 4 a graph in which the magnitude relationship of the first sensing data is visualized as the shade of the first area PDA1 is defined as a heat map. In Figure 11A the larger the first sensing data, the darker the first area PDA1, and the smaller the first sensing data, the lighter the first area PDA1.

[0123] Figure 11BShows the first sensing data of each first region PDA1 acquired by the first detection circuit 101 when the user visually confirms the second screen B from a viewing angle b on the left side of the display area AA (detection area DA) of the display device 1 and wants to operate an object on the second screen B. Here, a heat map weighted by the first sensing data of each first region PDA1 acquired by the first detection circuit 101 is illustrated. In Figure 11B it, Figure 11A similarly, the larger the first sensing data, the darker the first region PDA1, and the smaller the first sensing data, the lighter the first region PDA1.

[0124] When the user operates an object on the display screen of the display device 1, it is assumed that when operating with the right hand and when operating with the left hand, the shapes appearing on the heat map are different when weighted using the first sensing data of each first region PDA1.

[0125] Specifically, it is assumed that when the user is on the right side of the display area AA (detection area DA) of the display device 1, the user operates (touches) an object on the display screen of the display device 1 with the left hand. On the other hand, it is assumed that when the user is on the left side of the display area AA (detection area DA) of the display device 1, the user operates (touches) an object on the display screen of the display device 1 with the right hand. The shape appearing on the heat map when weighted using the first sensing data of each first region PDA1 has a high correlation with whether the finger to be operated is the left hand or the right hand.

[0126] Moreover, the slope Ti of the center of gravity position of the heat map weighted by the first sensing data of each first region PDA1 obtained through the hover detection operation is different when the finger to be operated is the left hand and the right hand.

[0127] Specifically, as Figure 11A shown, in the case where it is assumed that the user is on the right side of the display area AA (detection area DA) of the display device 1 and operates (touches) an object on the display screen of the display device 1 with the left hand, when the Y direction is defined as 0 degrees (degree), the inclination to the right relative to the Y direction is defined as a positive slope, and the inclination to the left is defined as a negative slope, the slope Ti of the center of gravity position of the heat map weighted by the first sensing data of each first region PDA1 becomes a positive value.

[0128] On the other hand, as Figure 11BAs shown, in the case where it is assumed that the user is located on the left side with respect to the display area AA (detection area DA) of the display device 1 and operates (touches) the target on the display screen of the display device 1 with the right hand, the slope Ti of the center-of-gravity position of the heat map weighted by the first sensing data of each first area PDA1 becomes negative.

[0129] Based on the concept of the processing of Embodiment 3 described above, in Embodiment 3, the operation target screen is determined based on the slope Ti of the center-of-gravity position of the heat map weighted by the first sensing data of each first area PDA1 obtained through the hover detection operation.

[0130] More specifically, in Embodiment 3, based on the first sensing data of each first area PDA1 obtained through the hover detection operation, generate Figure 11A Or Figure 11B A heat map in the shown form is calculated, and the slope Ti of the center-of-gravity position of this heat map is calculated. When the slope Ti of the center-of-gravity position of this heat map is 0 degrees or more (Ti≥0 degrees), the target on the first screen A is determined as the operation target object. When the slope Ti of the center-of-gravity position of the heat map is less than 0 degrees (Ti<0 degrees), the target on the second screen B is determined as the operation target object.

[0131] Hereinafter, refer to Figure 12 Describe the specific processing in the control circuit 100 of the display device 1 of Embodiment 3. Figure 12 It is a flowchart showing an example of the processing of Embodiment 3. In Figure 12 The processing shown, the processing of step S301 and step S302 is the same as the processing of step S101 and step S102 of Embodiment 1 (refer to Figure 8 ), so the detailed description here is omitted.

[0132] The processing circuit 103 of the control circuit 100 sets the threshold Hth in the hover detection operation based on the first sensing data obtained through the baseline scan (step S302) (step S303).

[0133] In the normal hover detection operation, for example, it is assumed that the position of the finger of the user who wants to perform a touch operation is detected by hovering. In this case, in the plurality of first areas PDA1, the first sensing data obtained through the normal hover detection operation becomes smaller, and there is a possibility that the judgment accuracy decreases. Therefore, the threshold Hth in the hover detection operation is set (step S303). In the processing of steps S304 to S309 described later, in each first area PDA1 on the detection area DA, when there is first sensing data equal to or greater than the threshold Hth in the obtained first sensing data, a heat map corresponding to the shape of the user's finger is generated.

[0134] Specifically, in Figure 12 the process shown, the processing circuit 103 of the control circuit 100 first obtains the first sensing data Hn of each first region PDA1(n) (where n is an integer from 1 to N, and N is the total number of the first regions PDA1 in the detection region DA) in the same manner as the normal hovering detection operation (step S304).

[0135] Next, the processing circuit 103 resets the number n (n is an integer from 0 to N) of the first sensing data Hn (n = 0, step S305), and determines whether the number n is less than N - 1 (n < N - 1, step S306).

[0136] When the number n is less than N - 1 (n < N - 1, step S306: Yes), the number n is incremented by one (n = n + 1, step S307), and it is determined whether the first sensing data Hn is equal to or greater than the threshold value Hth (Hn ≥ Hth; step S308). When the first sensing data Hn is less than the threshold value Hth (Hn < Hth; step S308: No), the processing after step S306 is repeatedly executed.

[0137] In step S306, when the number n becomes N - 1 (n = N - 1, step S306: No), in the process of step S304, the acquired first sensing data Hn is discarded (step S309), and the processing after step S304 is executed again.

[0138] When the first sensing data Hn becomes equal to or greater than the threshold value Hth (Hn ≥ Hth; step S308: Yes), in the process of step S304, using the acquired first sensing data Hn, generate Figure 11A and Figure 11B a heat map in the form shown (step S310), and calculate the slope Ti of the centroid position of the heat map weighted by the first sensing data (step S311).

[0139] In the process of step S310, the processing circuit 103 executes the determination process of the touch operation target screen after obtaining the first sensing data Hn as described above based on the calculated slope Ti of the centroid position of the heat map, and outputs the touch detection position in the touch operation target screen to the HOST200 based on the result of the determination process.

[0140] Specifically, in the process of step S310, the processing circuit 103 determines whether the calculated slope Ti of the centroid position of the heat map is 0 degrees or more (Ti ≥ 0 degrees, step S312).

[0141] Here, as described above, the Y direction is defined as 0 degrees, the inclination to the right relative to the Y direction is defined as a positive slope, and the inclination to the left is defined as a negative slope. That is, when the slope Ti at the center-of-gravity position of the heat map is 0 degrees or more (Ti ≥ 0 degrees, step S312: Yes), the processing circuit 103 determines that the touch on the display panel 2 after obtaining the first sensing data Hn is an operation on the target on the first screen A (step S313). Then, it is determined whether a touch is detected (step S315). If no touch is detected (step S315: No), the heat map is discarded (step S316), and the processing after step S304 is repeatedly executed. If a touch is detected (step S315: Yes), the position where the touch is detected is output to the HOST200 as the touch detection coordinates on the first screen A (step S317).

[0142] When the slope Ti at the center-of-gravity position of the heat map is less than 0 degrees (Ti < 0 degrees, step S312: No), the processing circuit 103 determines that the touch on the display panel 2 after obtaining the first sensing data Hn is an operation on the target on the second screen B (step S314). Then, it is determined whether a touch is detected (step S315). If no touch is detected (step S315: No), the heat map is discarded (step S316), and the processing after step S304 is repeatedly executed. If a touch is detected (step S315: Yes), the position of the touch detection is output to the HOST200 as the touch detection coordinates on the second screen B (step S317).

[0143] Then, after outputting the touch detection coordinates in the screen determined to be the touch operation target screen to the HOST200 in the determination process of the touch operation target screen by the processing circuit 103 (step S317), the processing after step S304 is repeatedly executed.

[0144] (Embodiment 4)

[0145] Figure 13A And Figure 13B is a schematic diagram for explaining the concept of the processing of Embodiment 4.

[0146] Figure 13A It shows that the user visually confirms the first screen A from the viewing angle a on the right side of the display area AA (detection area DA) of the display device 1 and touches the target on the first screen A, the touch detection coordinates P obtained in this touch detection action, and the first sensing data of each first area PDA1 obtained by the first detection circuit 101 at the touch detection time point. Here, a heat map weighted by the first sensing data of each first area PDA1 obtained by the first detection circuit 101 is illustrated. InFigure 13A Among them, the larger the first sensing data is, the darker the first area PDA1 is, and the smaller the first sensing data is, the lighter the first area PDA1 is.

[0147] Figure 13B It shows that the user visually confirms the second screen B from a viewing angle b located on the left side of the display area AA (detection area DA) of the display device 1 and touches the target on the second screen B, the touch detection coordinates P obtained in this touch detection operation, and the first sensing data of each first area PDA1 obtained by the first detection circuit 101 at the touch detection time point. Here, a heat map weighted by the first sensing data of each first area PDA1 obtained by the first detection circuit 101 is illustrated. In Figure 13B Among them, similar to Figure 13A the larger the first sensing data is, the darker the first area PDA1 is, and the smaller the first sensing data is, the lighter the first area PDA1 is.

[0148] In Embodiment 4, Figure 13A the first heat map of the illustrated form and Figure 13B the second heat map of the illustrated form are stored in advance in, for example, the EEPROM, ROM, etc. of the processing circuit 103. Then, in the processing of Embodiment 4 described later, a comparison process between the obtained heat map and the first heat map and the second heat map stored in advance is performed to determine the operation target screen.

[0149] More specifically, in Embodiment 4, a heat map is generated based on the first sensing data of each first area PDA1 obtained by the hover detection operation after obtaining the touch detection coordinates, and a comparison process between this heat map and the first heat map is performed. If they match, the target on the first screen A is determined as the operation target object. A comparison process between the heat map generated based on the first sensing data of each first area PDA1 obtained by the hover detection operation after obtaining the touch detection coordinates and the second heat map is performed. If they match, the target on the second screen B is determined as the operation target object.

[0150] It should be noted that, as the first heat map, for example, a heat map obtained in advance for the first screen A as the operation target screen can be used. In addition, as the second heat map, for example, a heat map obtained in advance for the second screen B as the operation target screen can be used. In addition, in the present disclosure, the judgment method in the comparison process between the heat map obtained during the detection period and the first heat map or the second heat map stored in advance can adopt known judgment methods. The present disclosure is not limited by the heat map comparison judgment method in the present disclosure.

[0151] Hereinafter, with reference to Figure 14 the specific processing in the control circuit 100 of the display device 1 in Embodiment 4 will be described. Figure 14This is a flowchart showing an example of the processing in Embodiment 4. It should be noted that in the present disclosure, Figure 14 the processing shown is processing performed during a detection period different from the period during which the first heat map and the second heat map are acquired. In Figure 14 the processing shown, the processing of step S401 and step S402 is the same as the processing of step S101 and step S102 in the processing of Embodiment 1 ( Figure 8 referenced), and thus, the detailed description thereof is omitted here.

[0152] The processing circuit 103 of the control circuit 100 determines whether a touch is detected during the touch detection operation (step S403). In the case where no touch is detected (step S403: No), the processing of step S403 is repeatedly executed.

[0153] In the case where a touch is detected (step S403: Yes), the processing circuit 103 acquires the position of the touch detection as touch detection coordinates P (step S404).

[0154] Next, the processing circuit 103 executes heat map generation processing. Specifically, the processing circuit 103 acquires the first sensing data of each first region PDA1 (step S405), and generates a heat map using the first sensing data Hn (step S406).

[0155] In Embodiment 3, as described above, a threshold value Hth in the hover detection operation is set, and in each first region PDA1 on the detection region DA, in the case where there is first sensing data equal to or greater than the threshold value Hth in the acquired first sensing data, a heat map corresponding to the shape of the user's finger is generated. In Embodiment 4, it is set to acquire the form of the first sensing data after touch detection. Therefore, the first sensing data required for heat map generation can be acquired through the first sensing data acquisition process in the normal hover detection operation.

[0156] In the processing of step S406, the processing circuit 103 executes a determination process of the touch operation target screen at the time of acquiring the touch detection coordinates based on the generated heat map, and outputs the touch detection position in the touch operation target screen to the HOST200 based on the result of the determination process.

[0157] Specifically, the processing circuit 103 executes a first comparison process on the heat map generated in the processing of step S406 (step S407). Specifically, the processing circuit 103 compares the heat map generated in the processing of step S406 with the first heat map held in advance.

[0158] When it is determined to be consistent in the first comparison process (step S407: Yes), the processing circuit 103 determines that the operation when obtaining the touch detection coordinates is an operation on the target object on the first screen A (step S408), and outputs the touch detection coordinates P obtained in the above touch detection operation as the position on the first screen A to the HOST200 (step S412).

[0159] When it is determined to be inconsistent in the first comparison process (step S407: No), next, the processing circuit 103 performs a second comparison process on the heat map generated in the process of step S406 (step S409). Specifically, the processing circuit 103 compares the heat map generated in the process of step S406 with the pre-held second heat map.

[0160] When it is determined to be consistent in the second comparison process (step S409: Yes), the processing circuit 103 determines that the operation when obtaining the touch detection coordinates is an operation on the target object on the second screen B (step S410), and outputs the touch detection coordinates P obtained in the above touch detection operation as the position on the second screen B to the HOST200 (step S412).

[0161] Then, after the processing circuit 103 outputs the touch detection coordinates P in the screen determined to be the touch operation target screen in the determination process of the above touch operation target screen to the HOST200 (step S412), the processing after step S403 is repeatedly executed.

[0162] When it is determined to be inconsistent in the second comparison process (step S409: No), the processing circuit 103 discards the touch detection coordinates P obtained in the above touch detection operation and the heat map generated in the above heat map generation process (step S411), and repeatedly executes the processing after step S403.

[0163] The display device 1 of the embodiment is configured to be able to simultaneously display different target objects in the perspectives from two directions in the same display area. By executing the processing of the above embodiments, it is possible to determine the operation target screen corresponding to the user's viewing position. Thus, it is possible to determine the operation target object on the operation target screen corresponding to the user's viewing position.

[0164] The above has described the preferred embodiments of the present invention, but the present invention is not limited to such embodiments. The content disclosed in the embodiments is merely an example, and various modifications can be made without departing from the gist of the present invention. For example, it is also possible to adopt by combining the processes of the above-described respective embodiments. Appropriate modifications made without departing from the gist of the present invention of course also fall within the technical scope of the present invention. At least one of various omissions, replacements, and changes of components can be made without departing from the gist of the above-described respective embodiments and respective modified examples.

Claims

1. A display device, characterized in that: have: A display panel having a display area capable of simultaneously displaying a first image visually recognized from a first viewing angle and a second image visually recognized from a second viewing angle different from the first viewing angle; a detection sensor having a detection area that coincides with the display area; as well as a control circuit having a first detection function and a second detection function, wherein the first detection function detects an object approaching the display panel, and the second detection function detects a touch on a target object displayed on an operation target screen, wherein the operation target screen is one of the first screen and the second screen, The control circuit determines the operation target screen based on the movement amount of the coordinates on the detection area acquired by the first detection function.

2. The display device according to claim 1, characterized in that The control circuit acquires, as the movement amount, a difference between a first coordinate acquired by the first detection function at a first time and a second coordinate acquired by the first detection function at a second time after the first time.

3. The display device according to claim 2, characterized in that: The first image is an image visually confirmed from the first viewing angle located on the right side relative to the display area, The second screen is a screen visually confirmed from the second viewing angle located on the left side relative to the display area, The control circuit calculates the difference by subtracting the second coordinate from the first coordinate, taking the direction from left to right relative to the display area as a positive value, When the difference is greater than 0, the first screen is determined to be the operation target screen. When the difference is smaller than 0, the second screen is determined to be the operation target screen.

4. A display device, characterized in that: have: A display panel having a display area capable of simultaneously displaying a first image visually recognized from a first viewing angle and a second image visually recognized from a second viewing angle different from the first viewing angle; a detection sensor having a detection area that coincides with the display area; as well as a control circuit having a first detection function and a second detection function, wherein the first detection function detects an object approaching the display panel, and the second detection function detects a touch on a target object displayed on an operation target screen, wherein the operation target screen is one of the first screen and the second screen, The control circuit determines the operation target screen based on a difference between a first coordinate on the detection area acquired by the first detection function and a second coordinate on the detection area acquired by the second detection function.

5. The display device according to claim 4, characterized in that: The first image is an image visually confirmed from the first viewing angle located on the right side relative to the display area, The second screen is a screen visually confirmed from the second viewing angle located on the left side relative to the display area, The control circuit calculates the difference by subtracting the second coordinate from the first coordinate, taking the direction from left to right relative to the display area as a positive value, When the difference is greater than 0, the first screen is determined to be the operation target screen. When the difference is smaller than 0, the second screen is determined to be the operation target screen.

6. A display device, characterized in that: have: A display panel having a display area capable of simultaneously displaying a first image visually recognized from a first viewing angle and a second image visually recognized from a second viewing angle different from the first viewing angle; a detection sensor having a detection area that coincides with the display area; as well as a control circuit having a first detection function and a second detection function, wherein the first detection function detects an object approaching the display panel, and the second detection function detects a touch on a target object displayed on an operation target screen, wherein the operation target screen is one of the first screen and the second screen, The control circuit generates a heat map weighted by the detection value of each of the plurality of regions based on the detection values ​​obtained by dividing the detection area into a plurality of regions in the first detection function, and determines the operation object screen based on the heat map.

7. The display device according to claim 6, characterized in that: The control circuit determines the operation target screen based on the slope of the center of gravity position of the heat map.

8. The display device according to claim 7, characterized in that: The first image is an image visually confirmed from the first viewing angle located on the right side relative to the display area, The second screen is a screen visually confirmed from the second viewing angle located on the left side relative to the display area, The control circuit calculates the slope of the center of gravity position of the heat map by taking the direction extending in the left-right direction relative to the display area as the first direction, the direction orthogonal to the first direction as the second direction, the direction from bottom to top of the second direction as 0 degrees, and the direction inclined to the left as a positive value. When the slope of the center of gravity position of the heat map is greater than 0 degrees, the first screen is determined to be the operation target screen, When the slope of the center of gravity position of the heat map is less than 0 degrees, the second screen is determined to be the operation target screen.

9. The display device according to claim 6, characterized in that: The control circuit holds in advance a first heat map acquired by taking the first screen as the operation target screen and a second heat map acquired by taking the second screen as the operation target screen. performing a comparison process between the heat map acquired during the detection period and the first heat map, and if it is determined that they are consistent, determining the first screen as the operation target screen, A comparison process is performed between the heat map acquired during the detection period and the second heat map, and when it is determined that they are consistent, the second screen is determined to be the operation target screen.

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