Display device and vehicle
The display device addresses frame width and display quality issues by using a capacitive proximity sensor with a light-shielding pattern and reduced sensor electrodes, enabling efficient user-specific image control and reduced power consumption.
Patent Information
- Application Number
- JP2024128218
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2026-02-16
AI Technical Summary
Existing display devices with multiple proximity sensors in the frame area face challenges in narrowing the frame and maintaining display quality due to sensor interference and visual characteristics disparities.
A display device with a capacitive proximity sensor having sensor electrodes that overlap a light-shielding pattern, reducing sensor electrodes on certain areas to minimize frame width and improve display quality, combined with a control unit to differentiate user interactions.
The solution allows for a narrower frame and improved display quality by reducing sensor interference and enhancing user-specific image control, while minimizing manufacturing costs and power consumption.
Smart Images

Figure 2026025452000001_ABST
Abstract
Description
[Technical Field]
[0001] The present disclosure relates to a display device and a vehicle. [Background technology]
[0002] Patent document 1 discloses a configuration in which the distance between a multi-view display and a touch operator is measured using a proximity sensor, and the viewing angle is changed based on the position information of the touch operator so that the display on the multi-view display is visible only to that touch operator. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent Publication No. 2017-129630 (Published July 27, 2017) Summary of the Invention [Problem to be solved by the invention]
[0004] In the configuration disclosed in Patent Document 1, multiple proximity sensors are arranged in the frame area of the display device, which makes it difficult to narrow the frame. [Means for solving the problem]
[0005] A display device according to one embodiment of the present disclosure includes a display panel having a first display area for displaying a first image and a second display area for displaying a second image, a shading pattern arranged so that a first user viewing the display panel from a first side can see the first image but cannot see the second image, and so that a second user viewing the display panel from a second side opposite the first side cannot see the first image but can see the second image, and a proximity sensor that is capacitive and has multiple sensor electrodes that overlap the shading pattern in a planar view.
[0006] A vehicle according to an embodiment of the present disclosure is configured such that the display device according to an embodiment of the present disclosure is installed so that the first user sits in the driver's seat and the second user sits in the passenger seat. [Effects of the Invention]
[0007] According to one aspect of the present disclosure, a display device including a proximity sensor can have a narrow frame. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is a plan view showing an example of a configuration of a display device according to an embodiment of the present disclosure, along with a user looking at the display device. [Figure 2] 1 is a partial cross-sectional view illustrating an example of a configuration of a display device according to an embodiment of the present disclosure. [Figure 3] 1 is a functional block diagram illustrating an example of a configuration of a display device according to an embodiment of the present disclosure. [Figure 4] FIG. 10 is a flowchart illustrating an example of a control method for a display device according to an embodiment of the present disclosure. [Figure 5] FIG. 5 is a timing chart showing an example of drive control by the drive control unit shown in FIG. [Figure 6] FIG. 5 is a timing chart showing an example of drive control by the drive control unit shown in FIG. [Figure 7] FIG. 5 is a timing chart showing an example of drive control by the drive control unit shown in FIG. [Figure 8] 1 is a functional block diagram illustrating an example of a configuration of a display device according to an embodiment of the present disclosure. [Figure 9] 1 is a functional block diagram illustrating an example of a configuration of a display device according to an embodiment of the present disclosure. [Figure 10] 1 is a partial cross-sectional view illustrating an example of a configuration of a display device according to an embodiment of the present disclosure. [Figure 11] 1 is a perspective view showing an example of installation of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
[0009] [Embodiment 1] (Display device configuration) FIG. 1 is a plan view showing an example of the configuration of a display device according to one embodiment of the present disclosure, along with a user viewing the display device. FIG. 2 is a partial cross-sectional view showing an example of the configuration of a display device according to one embodiment of the present disclosure. As shown in FIGS. 1 and 2, the display device 1 according to the first embodiment of the present disclosure includes a display panel 10 having a first display region 12 for displaying a first image IMG1 and a second display region 14 for displaying a second image IMG2, a light-shielding pattern 20 arranged so that a first user U1 viewing the display panel 10 from a first side (the left side of FIG. 1 ) can see the first image IMG1 but not the second image IMG2, and a second user U2 viewing the display panel 10 from a second side (the right side of FIG. 1 ) opposite the first side can see the first image IMG1 but not the second image IMG2, and a capacitive proximity sensor 30 having a plurality of sensor electrodes 32 that overlap the light-shielding pattern 20 in a planar view.
[0010] According to the above configuration, the light-shielding pattern 20 is arranged to overlap parts of the first display region 12 and the second display region 14, and the sensor electrode 32 is arranged to overlap the light-shielding pattern 20. Therefore, the sensor electrode 32 is arranged to overlap parts of the first display region 12 and the second display region 14. Therefore, compared to a configuration in which multiple proximity sensors are arranged in the frame region of the display device (for example, the configuration disclosed in JP 2017-129630 A), it is possible to narrow the frame of the display device.
[0011] In this disclosure, the side on which the light-shielding pattern 20 is located relative to the display panel 10 (upper side in FIG. 1) is referred to as "top," and the side on which the display panel 10 is located relative to the light-shielding pattern 20 (lower side in FIG. 1) is referred to as "bottom."
[0012] The light-shielding pattern 20 includes a plurality of first light-shielding portions 22 and one or more second light-shielding portions 24. The plurality of sensor electrodes 32 are arranged one by one on the plurality of first light-shielding portions 22, and are not arranged on any of the second light-shielding portions 24. The display device 1 further includes an electrically floating dummy electrode 34 that is arranged on the second light-shielding portions 24.
[0013] According to the above configuration, the sensor electrodes 32 are not arranged in the second light-shielding portions 24 of the light-shielding pattern 20. Therefore, the number of sensor electrodes 32 is reduced by the number of second light-shielding portions 24, which reduces the manufacturing cost of the display device 1 and the calculation load for processing the detection results of the proximity sensors 30.
[0014] If there were no dummy electrodes on the second light-shielding portion 24, the light reflectance and / or light absorbance at the positions of the first light-shielding portion 22 and the sensor electrode 32 would differ from the light reflectance and / or light absorbance at the positions of the second light-shielding portion 24. Such a difference in the visual characteristics of the display panel 10 would impair the display quality. On the other hand, according to the configuration of the present disclosure, the dummy electrodes 34 are disposed on the second light-shielding portion 24 as described above, so the visual characteristics of the display panel 10 are substantially uniform. Such substantially uniform visual characteristics improve the display quality of the display device 1.
[0015] When the touch sensor 40 is provided in the display device 1, the touch sensor 40 is disposed in a layer lower than the sensor electrode 32, and the sensor electrode 32 has an adverse effect on the sensitivity of the touch sensor 40. Therefore, compared to a configuration in which the sensor electrode is disposed over the entire light-shielding pattern 20, a configuration in which the sensor electrode 32 is not provided in the second light-shielding portion 24 of the light-shielding pattern 20 improves the sensitivity of the touch sensor 40.
[0016] The light-shielding pattern 20 is located between the display panel 10 and the plurality of sensor electrodes 32 and may be light-absorbing. Meanwhile, the plurality of sensor electrodes 32 may be light-reflective. If there were no light-shielding pattern 20 between the display panel 10 and the sensor electrodes 32, stray light would be generated due to reflection from the sensor electrodes 32, and the stray light would impair display quality. On the other hand, according to the configuration of the present disclosure, the light-shielding pattern 20 is located between the display panel 10 and the sensor electrodes 32 and is light-absorbing, so there is little or no stray light due to reflection from the sensor electrodes 32. Little or no stray light improves the display quality of the display device 1.
[0017] The light-shielding pattern 20 may be formed, for example, by printing a light-absorbing material such as black ink on a light-transmitting substrate such as a glass substrate. The sensor electrodes 32 and the dummy electrodes 34 may be patterned metal films. The sensor electrodes 32 may be arranged at equal intervals.
[0018] The display device 1 further includes a touch sensor 40 that overlaps the display panel 10 in a planar view. A first user U1 and / or a second user U2 can operate the display device 1 via the touch sensor 40. In the present disclosure, a user who is attempting to operate or is operating the display device 1 via the touch sensor 40 is referred to as an "operator."
[0019] (Configuration of control unit) 3 is a functional block diagram showing an example of the configuration of a display device according to an aspect of the present disclosure. As shown in FIG. 3, the display device 1 according to the first embodiment of the present disclosure further includes a control unit 50.
[0020] The control unit 50 includes a proximity receiving unit 51 that receives proximity information from the proximity sensor 30, a touch receiving unit 52 that receives touch information from the touch sensor 40, an operator identification unit 53 that identifies whether the operator is a first user U1 or a second user U2 based on the proximity information, and a touch processing unit 54 that, when the operator is identified as the first user U1, executes a first process corresponding to the touch information, and, when the operator is identified as the second user U2, executes a second process corresponding to the touch information, the second process being at least partially different from the first process.
[0021] According to the above configuration, the control unit 50 can distinguish between a touch operation by the first user U1 and a touch operation by the second user U2, and can provide different first or second processes depending on the operator. Furthermore, false detection of the touch sensor 40 due to noise is not accompanied by proximity information, so false detection of the touch sensor 40 can be eliminated.
[0022] The proximity receiving unit 51 may be a simple port that sends the proximity information from the proximity sensor 30 directly to the operator identifying unit 53, or it may perform some processing or some determination, such as whether or not an object is closer than a threshold, and send the processed proximity information to the operator identifying unit 53. The proximity receiving unit 51 may perform processing such as analog-to-digital conversion of the proximity information or determining whether or not an object is closer than a threshold. The proximity information may indicate the distance from each of the multiple sensor electrodes 32 to the object, for example, the operator's hand. The arrangement of the multiple sensor electrodes 32 may be recorded in a storage medium accessible by the control unit 50.
[0023] The operator identifying unit 53 receives proximity information from the proximity receiving unit 51 and identifies whether the operator is the first user U1 or the second user U2 based on the proximity information. The operator identifying unit 53 may also identify the presence or absence of an operator based on the proximity information. The operator identifying unit 53 sends operator information indicating the operator to the touch processing unit 54.
[0024] The touch receiving unit 52 may be a simple port that sends touch information from the touch sensor 40 directly to the touch processing unit 54, or may perform some processing on the touch information and send the processed touch information to the touch processing unit 54. The touch information may indicate the position where the operator touched the display device 1.
[0025] The touch processing unit 54 determines whether the operator is the first user U1 or the second user U2 based on the operator information from the operator identification unit 53. The touch processing unit 54 executes a first process for a touch operation by the first user U1, and executes a second process for a touch operation by the second user U2.
[0026] The control unit 50 may include a drive control unit 60, which may include a display panel control unit 62 that controls the display panel 10, a proximity sensor control unit 64 that controls the proximity sensor 30, and a touch sensor control unit 66 that controls the touch sensor 40.
[0027] The first process and the second process by the touch processing unit 54 may differ in the instructions given to the display panel control unit 62. For example, the first process may change the first image IMG1 without changing the second image IMG2, while the second process may change the second image IMG2 without changing the first image IMG1.
[0028] The first process and the second process by the touch processing unit 54 may differ in the instructions given to the proximity sensor control unit 64. For example, the first process may change the driving state of the proximity sensor 30, while the second process may not change the driving state of the proximity sensor 30. The proximity sensor 30 may have several driving states, such as a low-power mode in which the proximity sensor 30 detects the distance to an object while reducing power consumption, a high-power mode in which the proximity sensor 30 detects the distance to an object at maximum capacity, and a standby mode in which detection is substantially suspended and the proximity sensor 30 waits for an instruction from the control unit 50.
[0029] The first process and the second process by the touch processing unit 54 may differ in the instructions given to the touch sensor control unit 66. For example, the first process may be able to change the sensing rate of the touch sensor 40, while the second process may not be able to change the sensing rate of the touch sensor 40.
[0030] The first process and the second process may differ in the commands given to two or more of the display panel control unit 62, the proximity sensor control unit 64, and the touch sensor control unit 66, and / or may differ in the commands given to other devices such as speakers and air conditioning equipment.
[0031] (Operation of control unit) 4 is a flow diagram showing an example of a control method for a display device according to an embodiment of the present disclosure. As shown in FIG. 4, the control unit 50 determines whether a power-off command has been issued (step S10), and ends the process if power-off has been specified (Yes). If a power-off command has not been issued (No in step S10), the proximity receiving unit 51 receives proximity information from the proximity sensor 30 and determines whether or not there is an object closer than a given threshold (step S20). If there is no nearby object (No in step S20), the control unit 50 returns to step S10.
[0032] If a nearby object is present (Yes in step S20), the operator identifying unit 53 receives proximity information from the proximity receiving unit 51 and determines whether the operator is the first user U1 based on the proximity information (step S30). If the operator is identified as the first user U1 (Yes in step S30), the touch processing unit 54 subsequently receives touch information from the touch receiving unit 52 and executes a first process corresponding to the touch information (step S50).
[0033] If the operator is not identified as the first user U1 (NO in step S30), the operator identifying unit 53 further determines whether the operator is the second user U2 based on the proximity information (step S40). If the operator is identified as the second user U2 (YES in step S40), the touch processing unit 54 subsequently receives touch information from the touch accepting unit 52 and executes a second process corresponding to the touch information (step S60).
[0034] If the operator is not identified as the second user U2 (No in step S40), the touch processing unit 54 executes error processing (step S70). The error processing may, for example, notify that the touch operation is rejected because the operator is unknown.
[0035] After steps S50, S60, and S70, the control unit 50 returns to step S10.
[0036] (Operation mode) Figures 5 to 7 each show a timing diagram illustrating an example of drive control by the drive control unit shown in Figure 4. In Figures 5 to 7, "DP" indicates a period during which the display panel 10 is driven, "TP" indicates a period during which the touch sensor 40 is driven, and "Pro" indicates a period during which the proximity sensor 30 is driven.
[0037] The drive control unit 60 may have (i) a first mode in which the display panel 10 and the touch sensor 40 are alternately driven and the proximity sensor 30 is not driven, as shown in FIG. 5 , and (ii) a second mode in which the display panel 10, the proximity sensor 30, and the touch sensor 40 are alternately driven, as shown in FIG. 6 . According to this configuration, the drive control unit 60 selectively drives the display panel 10 and the touch sensor 40 in the first mode, and selectively drives the display panel 10, the proximity sensor 30, and the touch sensor 40 in the second mode. Therefore, noise in the proximity sensor 30 caused by the display panel 10 and the touch sensor 40 can be reduced, and noise in the touch sensor 40 caused by the display panel 10 and the proximity sensor 30 can be reduced.
[0038] The first mode does not drive the proximity sensor 30, so that the sensing rate of the display panel and the touch sensor can be increased or the power consumption of the display device 1 can be reduced compared to the second mode. For example, the first mode may be executed when the same process is to be executed regardless of whether the first user U1 or the second user U2 performs a touch operation, and the second mode may be executed when different processes are to be executed depending on the operator.
[0039] Alternatively, the drive control unit 60 may have (i) a first mode in which the display panel 10 and the touch sensor 40 are alternately driven and the proximity sensor 30 is not driven, as shown in FIG. 5 , and (iii) a third mode in which the display panel 10 and the touch sensor 40 are alternately driven and the proximity sensor 30 and the touch sensor 40 are simultaneously driven, as shown in FIG. 7 . With this configuration, in both the first mode and the second mode, the display panel 10 is in a sleep state while the proximity sensor 30 and the touch sensor 40 are driven. Therefore, noise of the proximity sensor 30 caused by the display panel 10 can be reduced, and noise of the touch sensor 40 caused by the display panel 10 can be reduced.
[0040] The first mode can reduce the power consumption of the display device 1 more than the third mode by not driving the proximity sensor 30. For example, the first mode may be executed when the same process is to be executed regardless of whether the first user U1 or the second user U2 performs a touch operation, and the third mode may be executed when different processes are to be executed depending on the operator.
[0041] Alternatively, the drive control section 60 may have the first, second and third modes described above.
[0042] [Embodiment 2] 8 is a functional block diagram illustrating an example of the configuration of a display device according to an aspect of the present disclosure. As shown in FIG. 8, a display device 1A according to a second embodiment of the present disclosure includes a display panel 10, a light-shielding pattern 20, and a proximity sensor 30, and further includes a touch sensor 40 and a control unit 50A. The control unit 50A according to the second embodiment further includes a proximity receiving unit 51 that receives proximity information from the proximity sensor 30, a touch prediction unit 55 that predicts an area to be touched by an operator based on the proximity information, and a touch sensor control unit 66 that controls the touch sensor 40 so as to activate a portion of the touch sensor 40 located in the area predicted to be touched and to deactivate a portion of the touch sensor 40 located in the area predicted not to be touched.
[0043] According to the above configuration, the touch sensor control unit 66 drives the portion located within the range predicted by the touch prediction unit 55 and stops the other portion. By partially driving the touch sensor 40 in this manner, it is possible to reduce the power consumption of the display device 1A. Furthermore, by pausing the entire touch sensor 40 when no one is attempting to perform a touch operation, it is possible to further reduce the power consumption of the display device 1A.
[0044] The configuration according to the second embodiment can be combined with the configuration according to the first embodiment described above.
[0045] [Embodiment 3] 9 is a functional block diagram illustrating an example of the configuration of a display device according to an aspect of the present disclosure. As shown in FIG. 9, a display device 1B according to a third embodiment of the present disclosure includes a display panel 10, a light-shielding pattern 20, and a proximity sensor 30, and further includes a touch sensor 40 and a control unit 50B. The control unit 50B according to the second embodiment further includes a proximity reception unit 51 that receives proximity information from the proximity sensor 30, a position detection unit 56 that detects a proximity position to which the operator is approaching based on the proximity information, and a touch sensor control unit 66 that controls the touch sensor 40 so as to drive a portion of the touch sensor 40 located in a range corresponding to the proximity position and stop a portion of the touch sensor 40 located in a range not corresponding to the proximity position.
[0046] According to the above configuration, the touch sensor control unit 66 drives the portion located within the range corresponding to the proximity position detected by the position detection unit 56, and stops the other portions. By partially driving the touch sensor 40 in this manner, the power consumption of the display device 1B can be reduced. Furthermore, by pausing the entire touch sensor 40 when no one is attempting to perform a touch operation, the power consumption of the display device 1B can be further reduced.
[0047] The touch prediction unit 55 according to the second embodiment predicts the area that the operator will touch in the future based on past and / or current proximity information. On the other hand, the position detection unit 56 according to the third embodiment detects the proximity position to which the operator is currently close based on current proximity information. Therefore, compared to the touch prediction unit 55 according to the second embodiment, the position detection unit 56 according to the third embodiment can reduce the calculation load.
[0048] The configuration according to the third embodiment can be combined with the configuration according to the first embodiment described above.
[0049] [Embodiment 4] 10 is a partial cross-sectional view showing an example of the configuration of a display device according to one aspect of the present disclosure. As shown in FIG. 10, in a display device 1C according to embodiment 4, the plurality of sensor electrodes 32 may be arranged one by one below the plurality of first light-shielding portions 22, and none of the sensor electrodes 32 may be arranged below the second light-shielding portion 24. The dummy electrode 34 may be arranged below the second light-shielding portion 24.
[0050] According to the above configuration, the sensor electrodes 32 are not arranged in the second light-shielding portions 24 of the light-shielding pattern 20. Therefore, the number of sensor electrodes 32 is reduced by the number of second light-shielding portions 24, which reduces the manufacturing cost of the display device 1 and the calculation load for processing the detection results of the proximity sensors 30.
[0051] In a configuration in which there is no dummy electrode below the second light-shielding portion 24, the shape and / or position of the top surface of the first light-shielding portion 22 would be different from the shape and / or position of the top surface of the second light-shielding portion 24. The top surfaces of the first and second light-shielding portions 22 and 24 are the surfaces closer to the display surface of the display device 1C. Such a difference in the top surfaces impairs display quality. On the other hand, in the configuration according to the present disclosure, since the dummy electrode 34 is disposed below the second light-shielding portion 24 as described above, the shape and / or position of the top surface of the light-shielding pattern 20 is substantially uniform. Such a substantially uniform top surface improves the display quality of the display device 1.
[0052] The dummy electrodes 34 may be made of a non-conductive material so as not to affect the sensitivity of the touch sensor 40. The dummy electrodes 34 may be made of a light-absorbing material to reduce stray light. The dummy electrodes 34 may be formed by printing black ink, for example.
[0053] The configuration of the fourth embodiment is the same as the configuration of the first embodiment described above, except for the arrangement of the multiple sensor electrodes 32, the arrangement of the one or more dummy electrodes 34, and the material of the dummy electrodes 34. The configuration of the fourth embodiment can be combined with the configurations of the second and third embodiments described above.
[0054] [Software implementation example] The functions of the control units 50 to 50B of the above-mentioned display devices 1 to 1C can be realized by a program for causing a computer to function as the control units 50 to 50B, and by a program for causing a computer to function as each functional block of the control units 50 to 50B (for example, the proximity reception unit 51, the touch reception unit 52, the operator identification unit 53, the touch processing unit 54, the touch prediction unit 55, the position detection unit 56, the proximity sensor control unit 64, the display panel control unit 62, and the touch sensor control unit 66).
[0055] In this case, the control units 50 to 50B are provided with a computer having at least one control device (for example, a processor or a microcomputer) and at least one storage device (for example, a memory) as hardware for executing the programs. The control device and storage device execute the programs, thereby realizing the respective functional blocks described in the above embodiments.
[0056] The program may be non-transitory and may be recorded on one or more computer-readable recording media. The recording media may or may not be included in the device. In the latter case, the program may be supplied to the device via any wired or wireless transmission medium.
[0057] In addition, some or all of the functions of the functional blocks can be realized by logic circuits. For example, an integrated circuit in which a logic circuit that functions as each of the functional blocks is formed is also included in the scope of one aspect of the present disclosure. In addition, the functions of the functional blocks can also be realized by, for example, a quantum computer.
[0058] The processes described in the above embodiments may be executed by AI (Artificial Intelligence). In this case, the AI may run on the control device (e.g., a processor or a microcomputer) or on another device (e.g., an edge computer or a cloud server).
[0059] [Embodiment 5] Fig. 11 is a perspective view showing an example of installation of a display device according to one embodiment of the present disclosure. As shown in Fig. 11, a display device 1D according to the present disclosure may be an in-vehicle display device. The display device 1D according to the present disclosure may have a configuration according to any one of the above-described embodiments 1 to 4, or a configuration that combines any two or more of these configurations, or may have a configuration that is a modification of these configurations. A vehicle 100 in which a display device 1D according to the present disclosure is installed is also included in the scope of the present disclosure.
[0060] The display device 1D may be installed in the vehicle 100 so that the first user U1 sits in the driver's seat DS and the second user U2 sits in the passenger seat PS. Alternatively, the display device 1D may be installed so that the first user U1 sits in the passenger seat PS and the second user U2 sits in the driver's seat DS.
[0061] 〔summary〕 A display device according to aspect 1 of the present disclosure includes a display panel having a first display area for displaying a first image and a second display area for displaying a second image, a shading pattern arranged so that a first user viewing the display panel from a first side can see the first image but cannot see the second image, and so that a second user viewing the display panel from a second side opposite the first side cannot see the first image but can see the second image, and a proximity sensor that is capacitive and has multiple sensor electrodes that overlap the shading pattern in a planar view.
[0062] A display device according to aspect 2 of the present disclosure may have the configuration according to aspect 1 above, wherein the shading pattern includes a plurality of first shading portions and one or more second shading portions, and the plurality of sensor electrodes are arranged one on each of the plurality of first shading portions, not arranged on the one or more second shading portions, and further include a dummy electrode that is arranged on the one or more second shading portions and is electrically floating.
[0063] A display device according to aspect 3 of the present disclosure may have the configuration according to aspect 1 above, wherein the shading pattern includes a plurality of first shading portions and one or more second shading portions, and the plurality of sensor electrodes are arranged one by one under the plurality of first shading portions, not under the one or more second shading portions, and further include a dummy electrode that is arranged under the one or more second shading portions and is electrically floating.
[0064] A display device according to aspect 4 of the present disclosure may have the configuration according to aspect 1 or 2 above, wherein the light-shielding pattern is positioned between the display panel and the plurality of sensor electrodes, the light-shielding pattern is light-absorbing, and the sensor electrodes are light-reflective.
[0065] A display device according to aspect 5 of the present disclosure may have a configuration according to any one of aspects 1 to 4 above, further including a touch sensor and a control unit, wherein the control unit includes a proximity receiving unit that receives proximity information from the proximity sensor, a touch receiving unit that receives touch information from the touch sensor, an operator identification unit that identifies whether the operator is the first user or the second user based on the proximity information, and a touch processing unit that, when the operator is identified as the first user, executes a first process corresponding to the touch information, and, when the operator is identified as the second user, executes a second process corresponding to the touch information, wherein the second process is at least partially different from the first process.
[0066] A display device according to aspect 6 of the present disclosure may have a configuration according to any one of aspects 1 to 4 above, further including a touch sensor and a control unit, wherein the control unit includes a proximity receiving unit that receives proximity information from the proximity sensor, a touch prediction unit that predicts the area that the operator will touch based on the proximity information, and a touch sensor control unit that controls the touch sensor so as to drive the part of the touch sensor located in the area predicted to be touched and stop the part located in the area predicted not to be touched.
[0067] A display device according to aspect 7 of the present disclosure may have the configuration according to aspect 5 above, wherein the control unit further includes a touch prediction unit that predicts the area that the operator will touch based on the proximity information, and a touch sensor control unit that controls the touch sensor to drive the part of the touch sensor located in the area predicted to be touched and to stop the part located in the area predicted not to be touched.
[0068] A display device according to aspect 8 of the present disclosure may have a configuration according to any one of aspects 1 to 4 above, further including a touch sensor and a control unit, wherein the control unit includes a proximity receiving unit that receives proximity information from the proximity sensor, a position detection unit that detects a proximity position to which an operator is approaching based on the proximity information, and a touch sensor control unit that controls the touch sensor, driving a portion of the touch sensor located in a range corresponding to the proximity position and stopping a portion of the touch sensor located in a range not corresponding to the proximity position.
[0069] A display device according to aspect 9 of the present disclosure may have the configuration according to aspect 5 above, wherein the control unit further includes a position detection unit that detects a proximity position to which an operator is approaching based on the proximity information, and a touch sensor control unit that controls the touch sensor, driving a portion of the touch sensor located in a range corresponding to the proximity position and stopping a portion of the touch sensor located in a range not corresponding to the proximity position.
[0070] A display device according to aspect 10 of the present disclosure may have a configuration according to any one of aspects 1 to 4 above, further comprising a touch sensor and a control unit, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a second mode in which the display panel, the proximity sensor, and the touch sensor are alternately driven.
[0071] A display device according to an eleventh aspect of the present disclosure may be configured according to any one of the fifth to ninth aspects, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a second mode in which the display panel, the proximity sensor, and the touch sensor are alternately driven. The drive control unit may include the touch sensor control unit.
[0072] A display device according to aspect 12 of the present disclosure may have a configuration according to any one of aspects 1 to 4 above, further comprising a touch sensor and a control unit, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a third mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is driven simultaneously with the touch sensor.
[0073] A display device according to a thirteenth aspect of the present disclosure may be configured according to any one of the fifth to ninth aspects, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a third mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is driven simultaneously with the touch sensor. The drive control unit may include the touch sensor control unit.
[0074] A display device according to aspect 14 of the present disclosure may have the configuration according to aspect 10 or 11 above, wherein the drive control unit further has (iii) a third mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is driven simultaneously with the touch sensor.
[0075] A display device according to a fifteenth aspect of the present disclosure may have the configuration according to any one of the first to fourteenth aspects above, and may be an in-vehicle display device.
[0076] A vehicle according to aspect 16 of the present disclosure is configured such that a display device having a configuration according to any one of aspects 1 to 15 above is installed so that the first user sits in the driver's seat and the second user sits in the passenger seat.
[0077] A control method for a display device according to aspect 17 of the present disclosure is a control method for controlling a display device having a configuration according to any one of aspects 1 to 4 above and further including a touch sensor, and may include an operator identification step of identifying whether the operator is the first user or the second user based on proximity information from the proximity sensor, and a touch processing step of, when the operator is identified as the first user, executing a first process corresponding to touch information from the touch sensor, and, when the operator is identified as the second user, executing a second process corresponding to the touch information, wherein the second process is at least partially different from the first process.
[0078] A control method for a display device according to aspect 18 of the present disclosure is a control method for controlling a display device having a configuration according to any one of aspects 1 to 4 above and further including a touch sensor, and may include a touch prediction process for predicting the area that an operator will touch based on proximity information from the proximity sensor, and a touch sensor control process for controlling the touch sensor so as to drive the part of the touch sensor located in the area predicted to be touched and stop the part located in the area predicted not to be touched.
[0079] A control method for a display device according to aspect 19 of the present disclosure may be a method according to aspect 17 above, including a touch prediction step of predicting the area that an operator will touch based on proximity information from the proximity sensor, and a touch sensor control step of controlling the touch sensor so as to drive the part of the touch sensor located in the area predicted to be touched and stop the part located in the area predicted not to be touched.
[0080] A control method for a display device according to aspect 20 of the present disclosure is a control method for controlling a display device having a configuration according to any one of aspects 1 to 4 above and further including a touch sensor, and may include: a position detection unit that detects a proximity position to which an operator is approaching based on proximity information from the proximity sensor; and a touch sensor control process that controls the touch sensor so as to drive a portion of the touch sensor located in a range corresponding to the proximity position and stop a portion located in a range not corresponding to the proximity position.
[0081] A control method for a display device according to aspect 21 of the present disclosure may be a method according to aspect 17 above, including a position detection unit that detects a proximity position to which an operator is approaching based on proximity information from the proximity sensor, and a touch sensor control process that controls the touch sensor so as to drive a portion of the touch sensor located in a range corresponding to the proximity position and stop a portion located in a range not corresponding to the proximity position.
[0082] [Additional Notes] One aspect of the present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of one aspect of the present disclosure. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of symbols]
[0083] 1,1A,1B,1C,1D display device 10 Display panel 12 1st display area 14 Second display area 20 Blackout Pattern 22 First light-shielding part 24 Second light-shielding part 30 Proximity Sensor 32 Sensor electrode 34 Dummy electrode 40 Touch Sensor 50, 50A, 50B Control unit (control device) 51 Proximity Reception 52 Touch reception unit 53 Operator identification unit 54 Touch processing section 55 Touch Prediction Unit 56 Position detection unit 60 Drive control unit 62 Display panel control unit 64 Proximity sensor control unit 66 Touch sensor control unit 100 vehicles IMG1 1st image IMG2 2nd image DS driver's seat PS passenger seat U1 First User U2 Second user
Claims
1. a display panel having a first display area for displaying a first image and a second display area for displaying a second image; a light-blocking pattern arranged so that a first user viewing the display panel from a first side can see the first image but cannot see the second image, and so that a second user viewing the display panel from a second side opposite to the first side can see the second image but cannot see the first image; a proximity sensor that is a capacitance type and has a plurality of sensor electrodes that overlap the light-shielding pattern in a plan view; A display device comprising:
2. the light-shielding pattern includes a plurality of first light-shielding portions and one or more second light-shielding portions; the plurality of sensor electrodes are arranged one by one on the plurality of first light-shielding portions, and are not arranged on the one or more second light-shielding portions; The display device according to claim 1 , further comprising an electrically floating dummy electrode disposed on the one or more second light-shielding portions.
3. the light-shielding pattern is located between the display panel and the plurality of sensor electrodes; the light-shielding pattern is light-absorbing; The display device of claim 1 , wherein the sensor electrode is light reflective.
4. Further comprising a touch sensor and a control unit, The control unit a proximity receiving unit that receives proximity information from the proximity sensor; a touch receiving unit that receives touch information from the touch sensor; an operator identification unit that identifies whether the operator is the first user or the second user based on the proximity information; 2. The display device according to claim 1, further comprising: a touch processing unit that, when the operator is identified as the first user, executes a first process corresponding to the touch information, and, when the operator is identified as the second user, executes a second process corresponding to the touch information, the second process being at least partially different from the first process.
5. Further comprising a touch sensor and a control unit, The control unit a proximity receiving unit that receives proximity information from the proximity sensor; a touch prediction unit that predicts an area to be touched by an operator based on the proximity information; 2. The display device according to claim 1, further comprising: a touch sensor control unit that controls the touch sensor so as to drive a portion of the touch sensor located in a range predicted to be touched and stop a portion of the touch sensor located in a range predicted not to be touched.
6. Further comprising a touch sensor and a control unit, The control unit a proximity receiving unit that receives proximity information from the proximity sensor; a position detection unit that detects a proximity position where an operator is approaching based on the proximity information; 2. The display device according to claim 1, further comprising: a touch sensor control unit that controls the touch sensor, and drives a portion of the touch sensor that is located in a range corresponding to the proximity position and stops a portion that is located in a range that does not correspond to the proximity position.
7. Further comprising a touch sensor and a control unit, 2. The display device according to claim 1, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a second mode in which the display panel, the proximity sensor, and the touch sensor are alternately driven.
8. Further comprising a touch sensor and a control unit, 2. The display device of claim 1, wherein the control unit includes a drive control unit having (i) a first mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is not driven, and (ii) a third mode in which the display panel and the touch sensor are alternately driven and the proximity sensor is driven simultaneously with the touch sensor.
9. The display device according to claim 1 , which is an in-vehicle display device.
10. A vehicle in which the display device according to claim 1 is installed so that the first user sits in a driver's seat and the second user sits in a passenger seat.
Citation Information
Patent Citations
Display device, display method, and program
JP2017129630A