JP2014203298A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device such that not only a connected external device, but also the display device itself can be operated by a contact operation on a display screen.SOLUTION: A touch panel circuit detects a plurality of operation positions that a user operates on a touch panel in time series, and specifies whether an operation pattern defined with the obtained operation positions is coincident with or similar to one of previously registered patterns. The touch panel circuit when specifying the registered pattern that the operation pattern is coincident with or similar to performs processing corresponding to the specified registered pattern.

Description

  The present invention relates to a display device that is connected to an external device and that realizes an operation on the connected external device by a touch operation on a display screen of the device itself.

  As a display device used by connecting to a personal computer (hereinafter referred to as a PC), a touch display having a touch panel has been widely used. The touch display includes a display circuit that displays a video signal transmitted from an external PC on a display panel, a touch panel circuit that detects a touch operation on the touch panel, and transmits a detection result to the PC. For example, in Patent Document 1, when an image display device that displays an image signal from an external PC is instructed to input to the display screen by a pointing tool such as a pen or a finger, the position indicated by the pointing tool is detected. And the structure which sends the coordinate information of the detected indication position to PC is disclosed.

JP 2007-72507 A

A general touch display is configured such that a display circuit and a touch panel circuit operate independently of each other. Specifically, the display circuit displays on the display panel when a video signal is sent from an external PC, and the touch panel circuit displays the location (position) of the touch operation when the touch operation is performed on the touch panel. ) Is detected and notified to the PC.
In addition, the touch display enables operations on the PC via the touch panel, but in many cases, operations on the own device cannot be performed via the touch panel. Therefore, in the case of operating instructions such as adjustment of image quality or angle of view on the touch display, switching of external input, power-off, etc., there is a problem that the user needs to operate an operation button or remote controller provided on the touch display. .

  The image display device disclosed in Patent Document 1 has a display screen area and an operation means area. If the coordinates of the pointing position by the pointing tool are on the display screen area, it is accepted as an operation for the connected PC, and if the coordinates of the pointing position is on the operation means area, the coordinates for the image display device itself are received. Accept as an operation. Therefore, in the image display device disclosed in Patent Document 1, it is possible to operate the device at the position indicated by the pointing tool with respect to the display screen, but it is necessary to provide an operation means region other than the display screen region. Have

  The present invention has been made in view of such circumstances. The purpose of the display is not to provide a display area for accepting operations on the device itself, but can be operated not only on the connected external device but also on the device itself by a touch operation on the display screen. To provide an apparatus.

  A display device according to the present invention includes a display unit that acquires and displays an image signal from an external device, a detection unit that detects a contact position of the display unit with respect to a display screen, and a contact position detected by the detection unit. In a display device including a transmission unit that transmits to a device, a plurality of patterns and a storage unit that stores information indicating processing corresponding to each pattern in association with each other, and a plurality of contact positions detected in time series by the detection unit A contact position storage unit that sequentially stores a contact pattern and a contact pattern defined as a set of contact positions stored in the contact position storage unit that matches or resembles a pattern stored in the storage unit And an execution unit that reads information indicating processing according to the pattern specified by the specifying unit from the storage unit and executes processing indicated by the read information.

  The display device according to the present invention includes a determination unit that determines whether or not a contact pattern defined as a set of contact positions stored in the contact position storage unit is larger than a predetermined size, and the specifying unit includes: When the determination unit determines that the size is larger than a predetermined size, it is specified which of the patterns stored in the storage unit matches or resembles the contact pattern.

  In the display device according to the present invention, the storage unit stores a plurality of characters or symbols and information indicating processing corresponding to each of the characters or symbols, and the specifying unit stores the information in the contact position storage unit. A pattern recognition unit that identifies whether a contact pattern defined as a set of touched positions is a predetermined character or symbol, and the character or symbol specified by the pattern recognition unit is stored in the storage unit It is characterized in that it is specified whether the character or symbol matches or is similar.

  The display device according to the present invention includes a display control unit that displays a reception screen that receives a pattern associated with each of a plurality of processes on the display unit, and a contact position with respect to the reception screen displayed on the display unit. Are received in time series, and a pattern receiving unit that receives a contact pattern defined as a set of a plurality of contact positions sequentially stored in the contact position storage unit, and the pattern in association with each of the plurality of processes And a storage control unit that stores the contact pattern received by the reception unit in the storage unit.

  In the display device according to the present invention, the transmission unit stops transmission of the contact position detected by the detection unit to the external device when the identification unit identifies a pattern that matches or is similar. It is characterized by.

  In the present invention, not only an operation to an external device connected to the display device but also an operation to the display device itself can be performed by a touch operation on the display screen of the display device. Therefore, it is possible to operate the display device by operating the display screen without operating the operation buttons or the remote controller provided on the display device.

1 is a schematic diagram illustrating an appearance of a touch display according to a first embodiment. 3 is a block diagram illustrating a configuration example of a touch display according to Embodiment 1. FIG. It is a schematic diagram which shows the example of the user's operation pattern with respect to a touch panel. It is a schematic diagram which shows the structural example of a command table. It is explanatory drawing for demonstrating the process which a command recognition part performs. 2 is a block diagram illustrating a configuration example of a PC according to Embodiment 1. FIG. It is a flowchart which shows the procedure of the process which a touch display and PC perform. It is a flowchart which shows the procedure of the process which a touch panel circuit and a display circuit perform during the display of a setting menu. It is a schematic diagram which shows the example of a display of a setting menu. It is a flowchart which shows the procedure of the process which a touch panel circuit and a display circuit perform when complete | finishing operation | movement. It is a schematic diagram which shows the example of a confirmation screen. It is a flowchart which shows the procedure of the registration process of a registration pattern. It is a schematic diagram which shows the example of a registration screen. It is a flowchart which shows the procedure of the registration process of a registration pattern. It is a schematic diagram which shows the example of a registration screen. It is a flowchart which shows the procedure of the process which the touch display and PC of Embodiment 3 perform.

  Hereinafter, a display device according to the present invention will be described in detail based on the drawings showing a touch panel display as an embodiment thereof. Hereinafter, the touch panel display is referred to as a touch display.

(Embodiment 1)
FIG. 1 is a schematic diagram illustrating an appearance of a touch display according to the first embodiment. The touch display 1 of the first embodiment is a display device having a touch panel 1a on one side, and a display 2a (see FIG. 2) is provided on the back side of the touch panel 1a (inside the housing of the touch display 1). Although the touch panel 1a is provided on the display screen side of the display 2a housed in the housing of the touch display 1, it is not limited to such a configuration. For example, the touch panel 1a may be provided on the back side of the display 2a (the back side of the display screen), or the touch panel 1a and the display 2a may be integrally configured.

  The touch display 1 is connected to an external PC (external device) 3 and functions as an input / output device for the PC 3. The touch display 1 is not limited to a display device, and may be a television receiver having a television broadcast receiving function. The touch display 1 may be any device that includes the touch panel 1a and the display 2a and can be connected to the PC 3, and may be a portable computer, a portable game machine, a cellular phone, a smartphone, or the like.

FIG. 2 is a block diagram illustrating a configuration example of the touch display 1 according to the first embodiment. The touch display 1 according to the first embodiment includes a touch panel 1a and a display 2a, a touch panel circuit 10 that controls the operation of the touch panel 1a, and a display circuit 20 that controls the operation of the display 2a.
The touch panel circuit 10 includes a control unit 11, a RAM (Random Access Memory) 12, a storage unit 13, a connection unit 14, a PC connection unit 15, a touch detection unit 16, a coordinate calculation unit 17, a command recognition unit 18, and a USB (Universal Serial Bus). ) The control unit 19 and the like are provided.

The control unit 11 is a CPU (Central Processing Unit) or an MPU (Micro Processor Unit). The control unit 11 loads the control program stored in the storage unit 13 into the RAM 12 and executes it appropriately to control the above-described hardware units, and cause the touch display 1 to operate as a display device according to the present invention.
The RAM 12 is an SRAM (Static RAM), a DRAM (Dynamic RAM), a flash memory, or the like. The RAM 12 temporarily stores various data generated when the control unit 11 executes the control program.
The storage unit 13 is a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable ROM), a flash memory, or an HDD (Hard Disk Drive). The storage unit 13 stores in advance a control program to be executed by the control unit 11 and various data. The storage unit 13 stores a command table 13a as shown in FIG. The detailed configuration of the command table 13a will be described later.

The connection unit 14 is connected to the connection unit 24 of the display circuit 20 and transmits and receives control signals to and from the connection unit 24. Specifically, the control unit 11 of the touch panel circuit 10 transmits a control signal (command) to the control unit 21 of the display circuit 20 via the connection units 14 and 24, and receives the control signal transmitted from the control unit 21. Receive. Thereby, the touch panel circuit 10 and the display circuit 20 control each other's operation.
The PC connection unit 15 is a connection unit that can be connected to the PC 3, and is, for example, a USB interface connected to the PC 3 via a USB cable.
The USB control unit 19 controls an operation in which the PC connection unit 15 transmits / receives a control signal to / from the PC 3 via the USB cable.
Accordingly, the control unit 11 of the touch panel circuit 10 controls communication with the PC 3 via the PC connection unit 15 by the USB control unit 19 and transmits / receives control signals to / from the PC 3.

  The touch detection unit 16 and the coordinate calculation unit 17 are connected to the touch panel 1a. The touch panel 1a is various touch sensors such as a capacitance method, a resistance film method, an electromagnetic induction method, or an infrared method. The touch detection unit 16 detects whether, for example, a user's finger touches the touch panel 1a. When the touch detection unit 16 detects that the user's finger has touched the touch panel 1a, the coordinate calculation unit (detection unit) 17 is a contact position (hereinafter, operation position) with respect to the surface of the touch panel 1a (display screen of the display 2a). The coordinate information related to the above is calculated. When the user's finger is continuously touching the touch panel 1a, the coordinate calculation unit 17 calculates the coordinate information of the operation position at predetermined time intervals (for example, every several tens of milliseconds or several hundreds of milliseconds). To do. The coordinate calculation unit 17 notifies the calculated coordinate information to the control unit 11 as needed.

In the first embodiment, an operation body that performs a touch operation on the touch panel 1a will be described using a user's finger as an example. However, the operation body may be a predetermined pen or the like. In the first embodiment, the coordinate axis origin of the touch panel 1a is the upper left corner when viewed from the front, the direction from left to right is the x-axis positive direction, and the direction from top to bottom is the y-axis positive direction. Information is indicated by an x-coordinate value and a y-coordinate value.
FIG. 3 is a schematic diagram illustrating an example of a user operation pattern on the touch panel 1a. In the touch display 1 according to the first embodiment, in addition to the user's selection operation with respect to the operation buttons in the screen displayed on the display 2a, an operation by a user's handwriting input is possible as shown in FIG. FIG. 3 shows examples of three operation patterns, and shows a state in which characters “M”, “S”, and “X” are input as operation patterns in order from the top. Each of the three operation patterns shown in FIG. 3 is input in the order indicated by an arrow, for example.

  The control unit 11 transmits the coordinate information of the operation position calculated by the coordinate calculation unit 17 from the PC connection unit (transmission unit) 15 to the PC 3 as needed. The PC 3 specifies and executes a process to be executed based on the coordinate information of the operation position acquired from the touch panel circuit 10. Therefore, the user can instruct the PC 3 to execute desired processing via the touch panel 1a.

  In addition, the control unit 11 accumulates the coordinate information of the operation position calculated by the coordinate calculation unit 17 in the storage unit (contact position storage unit) 13. When the storage unit is provided in the command recognition unit 18, the control unit 11 may accumulate the coordinate information of the operation position in the storage unit in the command recognition unit 18. When a predetermined time (for example, several seconds) elapses after the user's finger leaves the touch panel 1a and then touches the touch panel 1a again, this contact operation is an operation different from the previous operation on the touch panel 1a. To do. Therefore, in this case, the control unit 11 once deletes the coordinate position accumulated in the storage unit 13 and starts accumulating the coordinate information newly calculated by the coordinate calculation unit 17.

The command recognition unit 18 specifies a process (command) corresponding to the user's touch operation on the touch panel 1a based on the coordinate information stored in the storage unit 13 and the command table 13a. The coordinate information accumulated in the storage unit 13 is, for example, the coordinate information of each point extracted every predetermined time for the operation pattern shown in FIG.
FIG. 4 is a schematic diagram illustrating a configuration example of the command table 13a. In the command table 13a shown in FIG. 4, for each process executed in the display circuit 20, a control signal (command) indicating an instruction to execute each process corresponds to a user operation pattern (registered pattern) for the touch panel 1a. It is remembered. The command is determined in advance and stored in the command table 13a. In the example shown in FIG. 4, the processing content corresponding to each command is also shown, but it is sufficient that only the command is stored in the actual command table 13a. The registration pattern is a pattern registered by the user via a predetermined registration screen, and is stored or updated by the control unit 11 every time the user registers or changes. In the first embodiment, a predetermined character or symbol is used for the registered pattern.

FIG. 5 is an explanatory diagram for explaining processing performed by the command recognition unit 18. The command recognition unit (pattern recognition unit) 18 is a pattern based on a feature dictionary stored in advance in the storage unit 13 with respect to an operation pattern (contact pattern) defined as a set of coordinate information stored in the storage unit 13. Matching processing (character recognition processing) is performed. The feature dictionary stores feature information indicating features of a plurality of characters and symbols.
Specifically, the command recognition unit 18 is formed by sequentially connecting operation patterns defined as a set of coordinate information stored in the storage unit 13, for example, coordinate information stored in the storage unit 13 in the order of storage. Pattern the operation pattern. For example, when the operation pattern illustrated in FIG. 5A is input (operated), the command recognition unit 18 normalizes the operation pattern to a predetermined size (x0 × y0) as illustrated in FIG. 5B. Then, as shown in FIG. 5C, the command recognition unit 18 extracts feature point data (feature data) from an operation pattern of a predetermined size. The command recognizing unit 18 extracts, for example, coordinate information of each feature point using, as a feature point, a point where each straight line portion constituting the operation pattern intersects. In the example shown in FIG. 5C, eleven feature data are extracted.

  The command recognition unit 18 compares the feature data extracted from the operation pattern (coordinate information of each feature point) with the character and symbol feature information stored in the feature dictionary, and the operation pattern is registered in the feature dictionary. Which character or symbol is present. As a matching method, each feature data of the operation pattern is sequentially superposed on each feature information of characters and symbols stored in the feature dictionary and sequentially compared. When all the feature data match, it is determined that the character or symbol at this time matches the character or symbol indicated by the operation pattern. Further, if not all feature data but a predetermined number or more of feature data match, it is determined that the character or symbol at this time is similar to the character or symbol indicated by the operation pattern.

  If the command recognition unit 18 determines that the operation pattern matches or resembles any character or symbol as a result of the pattern matching process, whether or not the determined character or symbol is stored as a registered pattern in the command table 13a. Judging. When the determined character or symbol is stored as a registered pattern in the command table 13a, the command recognition unit (identification unit) 18 reads a command corresponding to the registered pattern from the command table 13a. Thereby, the command (process) according to the user's operation (operation pattern) with respect to the touch panel 1a can be specified. The command recognition unit 18 notifies the specified command to the control unit 11, and the control unit (execution unit) 11 executes processing according to the notified command.

The display circuit 20 includes a control unit 21, a RAM 22, a storage unit 23, a connection unit 24, an external input unit 25, a video display unit 26, an OSD (On Screen Display) display unit 27, an image quality adjustment unit 28, a power control unit 29, and the like. Prepare.
The control unit 21 is a CPU or MPU. The control unit 21 appropriately loads the control program stored in the storage unit 23 into the RAM 22 and executes the control program, thereby controlling the above-described hardware units and operating the touch display 1 as a display device according to the present invention.

The RAM 22 is SRAM, DRAM, flash memory, or the like. The RAM 22 temporarily stores various data generated when the control unit 21 executes the control program.
The storage unit 23 is a nonvolatile memory such as an EEPROM, a flash memory, or an HDD. The storage unit 23 stores in advance a control program to be executed by the control unit 21 and various data.

The connection unit 24 is connected to the connection unit 14 of the touch panel circuit 10 and transmits and receives control signals to and from the connection unit 14. Specifically, the control unit 21 of the display circuit 20 transmits a control signal to the control unit 11 of the touch panel circuit 10 via the connection units 24 and 14, and receives the control signal (command) transmitted from the control unit 11. Receive. The control unit (execution unit) 21 of the display circuit 20 performs processing according to an instruction from the touch panel circuit 10 by performing processing according to the control signal (command) received by the connection unit 24.
The external input unit 25 is a connection unit that can be connected to the PC 3. The external input unit 25 can be connected to a playback device that can read a signal recorded on a recording medium such as a hard disk or an optical disk, a tuner for receiving a television broadcast, and the like. The external input unit 25 includes a changeover switch, selects one of the connected devices in accordance with an instruction from the control unit 21, and acquires a video signal transmitted from the selected device.

A display 2 a is connected to the video display unit 26 and the OSD display unit 27. The display (display unit) 2a is, for example, a liquid crystal display, a plasma display, an organic EL (Electro Luminescence) display, or the like.
The video display unit 26 displays the video signal acquired via the external input unit 25 on the display 2 a in accordance with an instruction from the control unit 21. Therefore, the display circuit 20 can acquire the video signal sent from the PC 3 or another device by the external input unit 25 and display it on the display 2 a by the video display unit 26.

The OSD display unit 27 displays a screen based on various screen information stored in advance in the storage unit 23 on the video displayed on the display 2 a by the video display unit 26 in accordance with an instruction from the control unit 21. The screen information stored in the storage unit 23 includes, for example, setting menu information for adjusting the image quality (resolution), screen size, angle of view, etc. of the display image on the display 2a, and the command table 13a. Registration screen information.
The image quality adjustment unit 28 adjusts the image quality, screen size, angle of view, and the like of the display 2a according to instructions from the control unit 21. Specifically, the image quality adjustment unit 28 performs adjustment processing (setting processing) based on various information set by the user via the setting menu displayed on the display 2a by the OSD display unit 27.

The power control unit 29 is connected to a power plug or a battery (both not shown) that can be plugged into a power outlet. In accordance with an instruction from the control unit 21, the power supply control unit 29 supplies the power supplied via the power plug or the power supplied from the battery not only to each part of the display circuit 20 but also to each part constituting the touch display 1. Supply.
The touch display 1 according to the first embodiment may include a mechanical operation button that mechanically detects an operation in addition to the touch panel 1a, and is configured to be capable of remote operation using a remote controller. It may be.

FIG. 6 is a block diagram illustrating a configuration example of the PC 3 according to the first embodiment.
The PC 3 includes a control unit 30, a RAM 31, a storage unit 32, a video output unit 33, a touch panel connection unit 34, a USB control unit 35, a command recognition unit 36, and the like.
The control unit 30 is a CPU or MPU. The control unit 30 loads the control program stored in the storage unit 32 into the RAM 31 and executes it appropriately, thereby controlling the above-described hardware units and performing the operation as the PC 3.

The RAM 31 is an SRAM, DRAM, flash memory, or the like. The RAM 31 temporarily stores various data generated when the control program is executed by the control unit 30.
The storage unit 32 is a nonvolatile memory such as an EEPROM, a flash memory, or an HDD. The storage unit 32 stores in advance a control program to be executed by the control unit 30 and various data.

The video output unit 33 is a connection unit that can be connected to the display circuit 20 of the touch display 1. .
The touch panel connection unit 34 is a connection unit that can be connected to the touch panel circuit 10 of the touch display 1 and is, for example, a USB interface connected to the touch panel circuit 10 via a USB cable.
The USB control unit 35 controls an operation in which the touch panel connection unit 34 transmits and receives control signals to and from the touch panel circuit 10 of the touch display 1 via the USB cable.
Thereby, the control unit 30 of the PC 3 controls communication with the touch panel circuit 10 via the touch panel connection unit 34 by the USB control unit 35, and transmits and receives control signals to and from the touch panel circuit 10.

The command recognition unit 36 identifies a process (command) corresponding to a user operation on the touch panel 1 a of the touch display 1. For example, the command recognition unit 36 converts the video (display screen) based on the video signal output from the video output unit 33 to the display circuit 20 and the coordinate information of the operation position (contact position) transmitted from the touch panel circuit 10. Based on this, it is determined whether any button displayed on the screen has been operated. When determining that any one of the buttons has been operated, the command recognition unit 36 notifies the control unit 30 of a process (command) corresponding to the operated button. Also, a command table as shown in FIG. 4 is stored in the storage unit 32, and, similar to the command recognition unit 18 of the touch panel circuit 10, the command recognition unit 36 sends a command corresponding to the user's operation pattern on the touch panel 1a. You may read from a command table.
When the control unit 30 executes the process notified from the command recognition unit 36, the PC 3 can execute the process according to the user's touch operation on the touch panel 1 a of the touch display 1.

  Below, the process which the touch display 1 and PC3 of this Embodiment 1 perform is demonstrated. FIG. 7 is a flowchart showing a procedure of processes performed by the touch display 1 and the PC 3. In FIG. 7, the processing on the left indicates processing by the PC 3, the processing on the center indicates processing by the touch panel circuit 10 of the touch display 1, and the processing on the right indicates processing by the display circuit 20 of the touch display 1.

  In the touch panel circuit 10 of the touch display 1, the control unit 11 determines whether or not there is a user touch operation on the touch panel 1a in the touch detection unit 16 when performing a normal operation (S1). When it is determined that there is no user operation (S1: NO), the control unit 11 stands by while performing other processes until there is a user operation. When it is determined that there is a user operation (S1: YES), the control unit 11 calculates coordinate information of the user operation position on the touch panel 1a in the coordinate calculation unit 17 (S2). The control unit 11 transmits the calculated coordinate information of the operation position from the PC connection unit 15 to the PC 3 (S3).

  The control unit 30 of the PC 3 acquires coordinate information transmitted from the touch panel circuit 10 via the touch panel connection unit 34, and specifies processing corresponding to the acquired coordinate information at the command recognition unit 36. Then, the control unit 30 executes the specified process (S4). Each time the control unit 30 of the PC 3 acquires the coordinate information of the operation position of the user with respect to the touch panel 1a from the touch panel circuit 10, the control unit 30 specifies and executes a corresponding process.

  The control unit 11 of the touch panel circuit 10 stores (accumulates) the coordinate information calculated in step S2 in the storage unit 13 (S5). The control unit 11 performs a predetermined pattern matching process on the operation pattern formed by the coordinate information stored in the storage unit 13 in the command recognition unit 18 (S6), and the character or the character matching or similar to the operation pattern Identify the symbol. The control unit 11 determines whether the character or symbol specified by the pattern matching process matches any of the registered patterns stored in the command table 13a (S7). When the character or symbol specified by the pattern matching process does not match any of the registered patterns stored in the command table 13a (S7: NO), the control unit 11 returns the process to step S1. Note that even when the character or symbol indicated by the operation pattern cannot be specified by the pattern matching process, the control unit 11 assumes that the character or symbol does not match any of the registered patterns stored in the command table 13a, and step S1. Return processing to.

  The control unit 11 repeats the processes of steps S1 to S7 until it is determined that the character or symbol specified by the pattern matching process matches any of the registered patterns stored in the command table 13a. In addition, when the user's operation on the touch panel 1a is continued, the control unit 11 calculates the coordinate information of the operation position at predetermined time intervals in the coordinate calculation unit 17, transmits the coordinate information to the PC 3, and accumulates it in the storage unit 13. . Further, when the operation is performed again after a predetermined time has elapsed since the user's operation on the touch panel 1a is completed, the control unit 11 once deletes the coordinate information of the operation position accumulated in the storage unit 13, and again. Accumulate coordinate information of operation position.

  When it is determined that the character or symbol specified by the pattern matching process matches the registered pattern stored in the command table 13a (S7: YES), the control unit 11 performs the user's operation on the display circuit 20 (touch display 1). The PC connection unit 15 notifies the PC 3 that the operation has started (S8). And the control part 11 stops transmission of the coordinate information from PC connection part 15 to PC3 (S10). The control unit 30 of the PC 3 receives from the touch panel circuit 10 via the touch panel connection unit 34 a notification that the user operation on the display circuit 20 has been started (S9). When a character or symbol that matches or is similar to the operation pattern matches any registered pattern, the user's operation on the touch panel 1a is an operation on the display circuit 20 instead of an operation on the PC 3. Therefore, by stopping the transmission of the coordinate information to the PC 3, it is possible to avoid the PC 3 from malfunctioning according to the operation on the display circuit 20.

  Further, by notifying the PC 3 that the operation on the display circuit 20 has been started, the coordinate information transmitted from the touch panel circuit 10 until the PC 3 is determined to match the registered pattern is used for the operation on the PC 3. It can be determined that the coordinate information is not. As a result, the PC 3 can cancel the execution of the process specified by the command recognition unit 36 based on the coordinate information transmitted from the touch panel circuit 10 until it is determined to match the registered pattern. For example, when the user inputs (operates) “M” to the touch panel 1a in order to execute setting menu display processing as will be described later, the PC 3 displays “M” (handwritten) input by the user. The process of displaying the input locus) on the display 2a is performed. When the touch panel circuit 10 notifies that the operation on the display circuit 20 has been started, the PC 3 can end (cancel) the display of the handwritten input locus.

  The control unit 11 reads from the command table 13a a command corresponding to the registered pattern that matches the character or symbol specified by the pattern matching process (S11), and sends the read command to the display circuit 20 via the connection unit 14. (S12). The control unit 21 of the display circuit 20 executes processing according to the command acquired from the touch panel circuit 10 (S13).

Next, the process performed by the touch panel circuit 10 and the display circuit 20 when the touch panel circuit 10 sends a command for instructing execution of the setting menu display process to the display circuit 20 in step S10 during the above-described process. To do. Note that the example of the command table 13a illustrated in FIG. 4 is processing when the user inputs (operates) “M” on the touch panel 1a.
FIG. 8 is a flowchart showing a procedure of processing performed by the touch panel circuit 10 and the display circuit 20 during display of the setting menu. In FIG. 8, the processing on the left side indicates processing by the touch panel circuit 10 of the touch display 1, and the processing on the right side indicates processing by the display circuit 20 of the touch display 1.

  When the control unit 21 of the display circuit 20 obtains a command for instructing execution of setting menu display processing from the touch panel circuit 10, the control unit 21 provides the setting menu information stored in the storage unit 23 to the OSD display unit 27 to set A menu is displayed on the display 2a (S21). FIG. 9 is a schematic diagram illustrating a display example of the setting menu. The setting menu shown in FIG. 9 has a setting screen on which various conditions can be set for each of screen adjustment, video adjustment, audio adjustment, body setting, and function switching. Can be displayed. FIG. 9 shows a state in which a setting screen for accepting setting of conditions regarding screen adjustment is displayed.

  In the setting menu shown in FIG. 9, the user can switch to the display of an arbitrary setting screen by touching the display area of each tag T. In each setting screen, the user can select an arbitrary setting item by operating the display area of each setting item (for example, clock, phase, etc.). In the graph G indicating the setting values of the setting items, the user can specify an arbitrary setting value by operating a desired position or dragging the mark G1 indicating the setting value to the desired position. In addition, an automatic adjustment button and an end button are displayed on the setting screen. When the user wants to set each condition to the default value, he / she operates the automatic adjustment button and ends the setting process via the setting menu. Operates the end button.

  The control unit 11 of the touch panel circuit 10 sends a command instructing execution of the setting menu display process in step S12 in FIG. 7, and then in the touch detection unit 16 in the same manner as in step S1 in FIG. 7. It is determined whether or not there is a user touch operation on the touch panel 1a (S22). When it is determined that there is no user operation (S22: NO), the control unit 11 stands by while performing other processes until there is a user operation. When it is determined that there is a user's operation (S22: YES), the control unit 11 calculates coordinate information of the user's operation position on the touch panel 1a in the coordinate calculation unit 17 (S23). And the control part 11 transmits the coordinate information of the calculated operation position to the display circuit 20 from the connection part 14 (S24). The control unit 11 of the touch panel circuit 10 returns the process to step S22 and repeats the processes of steps S23 and S24 each time the user performs an operation on the touch panel 1a.

After displaying the setting menu in step S21, the control unit 21 of the display circuit 20 determines whether or not the coordinate information transmitted from the touch panel circuit 10 is acquired via the connection unit 24 (S25). If it is determined that it has not been acquired (S25: NO), the control unit 21 waits until the coordinate information is acquired.
When it is determined that the coordinate information has been acquired (S25: YES), the control unit 21 specifies a process according to the acquired coordinate information (S26). Here, the control unit 21 specifies the process instructed to be executed by the user based on the display content of the setting menu (setting screen) being displayed on the display 2a via the OSD display unit 27 and the operation position of the user. To do. For example, when the user operates the tag T in FIG. 9, the control unit 21 determines that the tag T operated by the user is specified and an instruction to switch the display to the setting screen corresponding to the specified tag T is received. .

  The control unit 21 determines whether or not the specified process is an instruction to end the setting process via the setting menu (S27). If it is determined that the specified process is not an end instruction (S27: NO), the specified process is executed. (S28). Specifically, the control unit 21 switches the display to a setting screen corresponding to the tag T operated by the user. And the control part 21 returns a process to step S25, and repeats the process of step S26-S28, whenever coordinate information is acquired from the touch panel circuit 10. FIG.

  When it is determined that the specified process is an instruction to end the setting process (S27: YES), that is, when the user operates the end button in the display screen, the control unit 21 specifies the content specified via the setting menu. Processing for setting (each numerical value) is performed (S29). For example, the control unit 21 performs image quality adjustment processing by the image quality adjustment unit 28. And the control part 21 complete | finishes the display of the setting menu currently displayed on the display 2a in the OSD display part 27 (S30). The control unit 21 of the display circuit 20 notifies the end of the menu display to the control unit 11 of the touch panel circuit 10 via the connection unit 24 after the setting menu display (setting process via the setting menu) is completed. To do. When notified of the end of the menu display, the control unit 11 of the touch panel circuit 10 resumes the transmission of the coordinate information stopped in step S10 in FIG. That is, after that, when the user performs a touch operation on the touch panel 1a, the control unit 11 transmits the coordinate information of the operation position from the PC connection unit 15 to the PC 3. Thereby, after completion | finish of a setting process, operation with respect to PC3 via the touch panel 1a can be restarted.

Next, a process performed by the touch panel circuit 10 and the display circuit 20 when the touch panel circuit 10 sends a command for instructing the operation end to the display circuit 20 in step S12 in the process illustrated in FIG. 7 will be described. Note that the example of the command table 13a illustrated in FIG. 4 is processing when the user inputs (operates) “X” to the touch panel 1a.
FIG. 10 is a flowchart showing a procedure of processes performed by the touch panel circuit 10 and the display circuit 20 when the operation is finished. In FIG. 10, the processing on the left side indicates processing by the touch panel circuit 10 of the touch display 1, and the processing on the right side indicates processing by the display circuit 20 of the touch display 1.

  When the control unit 21 of the display circuit 20 obtains a command for instructing the end of the operation from the touch panel circuit 10, the control unit 21 gives the screen information stored in the storage unit 23 to the OSD display unit 27 and displays a confirmation screen on the display 2a. (S41). FIG. 11 is a schematic diagram illustrating an example of a confirmation screen. The confirmation screen illustrated in FIG. 11 includes two operation buttons on which “PC and touch display power off” and “cancel” messages are displayed.

  The control unit 11 of the touch panel circuit 10 transmits a command for instructing the end of the operation in step S12 in FIG. 7 and then, in the same manner as in step S1 in FIG. It is determined whether or not there is a contact operation (S42). When it is determined that there is no user operation (S42: NO), the control unit 11 stands by while performing other processes until there is a user operation. When it is determined that there is a user's operation (S42: YES), the control unit 11 calculates coordinate information of the user's operation position with respect to the touch panel 1a in the coordinate calculation unit 17 (S43). And the control part 11 transmits the coordinate information of the calculated operation position to the display circuit 20 from the connection part 14 (S44). The control unit 11 of the touch panel circuit 10 returns the process to step S42, and repeats the processes of steps S43 and S44 every time the user performs an operation on the touch panel 1a.

After displaying the confirmation screen in step S41, the control unit 21 of the display circuit 20 determines whether or not the coordinate information transmitted from the touch panel circuit 10 is acquired via the connection unit 24 (S45). If it is determined that it has not been acquired (S45: NO), the control unit 21 waits until coordinate information is acquired.
When it is determined that the coordinate information has been acquired (S45: YES), the control unit 21 specifies a process according to the acquired coordinate information (S46). Here, the control unit 21 specifies the operation button operated by the user based on the display content of the confirmation screen being displayed on the display 2a via the OSD display unit 27 and the operation position of the user.

The control unit 21 determines whether or not the specified process is an instruction to turn off the power (S47). If the control unit 21 determines that the specified process is an instruction to turn off the power (S47: YES), that is, the power supply on the confirmation screen by the user When the off button is operated, the control unit 21 instructs the PC 3 to end the operation (S48). Specifically, the control unit 21 instructs the control unit 11 of the touch panel circuit 10 to transmit a shutdown command to the PC 3 via the connection unit 24. Then, the control unit (signal transmission unit) 11 transmits a shutdown command to the PC 3 via the PC connection unit 15 by the USB control unit 19.
Thereafter, the control unit 21 of the display circuit 20 ends the operation of the touch display 1 (S49). Here, the control unit 21 instructs the control unit 11 of the touch panel circuit 10 to end the operation via the connection unit 24 and performs an end process for ending the operation of each component of the display circuit 20. After the termination processing by the touch panel circuit 10 and the display circuit 20 is completed, the power supply to the touch display 1 by the power control unit 29 is stopped, and the touch display 1 is stopped.

When determining that the identified process is not a power-off instruction (S47: NO), the control unit 21 determines whether or not the identified process is a cancel instruction (S50). When it is determined that the specified process is an instruction to cancel (S50: YES), that is, when the user operates the cancel button on the confirmation screen, the control unit 21 displays on the display 2a with the OSD display unit 27. The display of the confirmation screen that has been displayed is terminated (S51). The control unit 21 of the display circuit 20 notifies the end of display of the confirmation screen to the control unit 11 of the touch panel circuit 10 via the connection unit 24 after finishing the display of the confirmation screen. When notified of the end of display of the confirmation screen, the control unit 11 of the touch panel circuit 10 resumes the transmission of the coordinate information stopped in step S10 in FIG. That is, after that, when the user performs a touch operation on the touch panel 1a, the control unit 11 transmits the coordinate information of the operation position from the PC connection unit 15 to the PC 3.
If it is determined that the specified process is not a cancel instruction (S50: NO), the control unit 21 returns the process to step S47 and waits until the user operates the power-off button or the cancel button on the confirmation screen.

  When the touch panel circuit 10 sends a command for switching the external input to the display circuit 20 in step S12 in the process shown in FIG. 7, the control unit 21 of the display circuit 20 switches the external input unit 25. The video signal input from the external device connected to the external input unit 25 is switched by the switch. Specifically, in the example of the command table 13 a shown in FIG. 4, every time the user inputs “S” to the touch panel 1 a, the control unit 21 receives the video signal input via the external input unit 25. Switch sequentially in a predetermined order. Further, for example, when “S” is input to the touch panel 1 a, switching to video signal input from the playback device is performed, and when “Z” is input, video signal is input from the PC 3. For example, switching may be performed according to an input pattern (operation pattern).

  As described above, in the touch display 1 according to the first embodiment, not only the operation on the connected PC 3 but also the operation on the touch display 1 itself can be performed via the touch panel 1a. Therefore, even when the user wants to perform an operation on the touch display 1 while performing an operation on the PC 3 via the touch panel 1a, it is not necessary to operate the remote controller of the touch display 1, and the operability is good. In particular, the operation for inputting the setting value via the setting menu is a complicated operation when the remote controller is used. However, since the operation on the touch panel 1a can be performed intuitively, the operability is good.

Next, registration and change processing of the registration pattern stored in the command table 13a will be described. Note that registration pattern registration and change processing may be performed via a predetermined registration screen, and an operation for displaying the predetermined registration screen on the display 2a may be performed via the remote controller of the touch display 1. It may be performed via the touch panel 1a.
FIG. 12 is a flowchart showing a registration pattern registration process. FIG. 12 shows only processing performed by the display circuit 20, and processing by the touch panel circuit 10, for example, processing for calculating coordinate information of a user's operation position on the touch panel 1a, is omitted.

  When instructed to execute the registration and change processing of the registration pattern, the control unit 21 of the display circuit 20 gives the registration screen information stored in the storage unit 23 to the OSD display unit 27 and displays the registration screen on the display 2a. (S61). FIG. 13 is a schematic diagram illustrating an example of a registration screen. In the registration screen shown in FIG. 13A, the contents of each process executed on the touch display 1 (display circuit 20) are displayed, and a registration pattern already associated with each process is displayed next to each process. Has been. In the example shown in FIG. 13A, “M” is registered for the setting menu display process, “S” is registered for the external input switching process, and “X” is registered for the power-off process.

Based on the coordinate information acquired from the touch panel circuit 10 via the connection unit 24, the control unit 21 determines whether or not a process (registration target) for registering (changing) the registration pattern has been selected (S62). In the registration screen illustrated in FIG. 13A, for example, if the user's operation position is within the “setting menu display” and “M” display areas, it is determined that the setting menu display processing has been selected as the registration target.
When it is determined that the registration target has been selected (S62: YES), the control unit 21 gives the switching screen information stored in the storage unit 23 to the OSD display unit 27, and displays the switching screen shown in FIG. 13B on the display 2a. (S63). FIG. 13B shows an example of a switching screen when the setting menu display process is selected as a registration target. The switching screen shown in FIG. 13B is configured so that a pattern to be registered for the display process of the setting menu can be selected. For example, when the upper button and the lower button are operated on the switching screen, predetermined characters and symbols including alphabets are sequentially switched and displayed in a predetermined order. Further, when the right button is operated, for example, uppercase letters and lowercase letters of the alphabet are switched and displayed.

  When the switching screen is displayed, the control unit 21 determines whether or not a pattern switching instruction has been issued based on the coordinate information acquired from the touch panel circuit 10 (S64). Specifically, the control unit 21 determines whether the user's operation position is any one of an upper button, a lower button, and a right button. If it is determined that a pattern switching instruction has been issued (S64: YES), the control unit 21 switches the pattern to be displayed on the switching screen according to the button operated by the user (S65). When it is determined that the pattern switching instruction is not performed (S64: NO), the control unit 21 skips the process of step S65 and determines whether or not the user has operated the OK button in the switching screen ( S66). When determining that the OK button has not been operated (S66: NO), the control unit 21 returns the process to step S64, and performs the process of step S65 each time a pattern switching instruction is issued. When determining that the OK button has been operated (S66: YES), the control unit 21 returns the process to step S61 and returns to the display of the registration screen shown in FIG. 13A. In the registration screen here, the changed pattern is displayed via the switching screen shown in FIG. 13B.

When it is determined that the registration target is not selected on the registration screen (S62: NO), the control unit 21 determines whether the end button is operated by the user based on the coordinate information acquired from the touch panel circuit 10. (S67). When determining that the end button has not been operated (S67: NO), the control unit 21 returns the process to step S62.
If it is determined that the end button has been operated (S67: YES), the control unit (accepting unit) 21 accepts each pattern currently displayed on the registration screen as a registered pattern and registers it in the command table 13a (S68). ). Here, the control unit 21 sends the registration pattern set via the registration screen together with information indicating the corresponding processing from the connection unit 24 to the touch panel circuit 10, and updates the command table 13 a to the control unit 11. Instruct. The control unit (storage control unit) 11 of the touch panel circuit 10 registers the registration pattern acquired from the display circuit 20 in the command table 13a according to an instruction from the display circuit 20, and updates the command table 13a. And the control part 21 of the display circuit 20 complete | finishes the display of the registration screen currently displayed on the display 2a in the OSD display part 27 (S69).

  As described above, in the touch display 1 according to the first embodiment, a registered pattern to be compared (matched) with a user operation pattern (contact pattern) on the touch panel 1a is an arbitrary character or symbol. Therefore, pattern matching processing is performed on the operation pattern for the touch panel 1a, and the result and the registered pattern may be compared (collated), so that the comparison with the registered pattern is easy. In addition, since any character or symbol may be selected when registering the pattern, it is easy to register the pattern, and by registering a character or symbol that is easy to remember or input by the user in the registered pattern, The touch display 1 with better operability can be realized.

(Embodiment 2)
Below, the touch display 1 of Embodiment 2 is demonstrated. The touch display 1 according to the second embodiment has the same configuration as the touch display 1 according to the first embodiment described above, and the same components are denoted by the same reference numerals and description thereof is omitted. Moreover, the touch display 1 of this Embodiment 2 performs the same process as the process which the touch display 1 of the above-mentioned Embodiment 1 performs except the process demonstrated below.
In the touch display 1 according to the second embodiment, the registration pattern registered in the command table 13a is not a predetermined character or symbol but a pattern arbitrarily input by the user on the touch panel 1a. Different from the first embodiment.

  In the second embodiment, since the registered pattern is a pattern input by handwriting by the user, feature data extracted from the pattern input by handwriting by the user is stored as a registered pattern in the command table 13a. . Therefore, in the second embodiment, the command recognition unit 18 of the touch panel circuit 10 does not perform the pattern matching process (character recognition process) for specifying what character or symbol the operation pattern is as in the first embodiment. .

  Specifically, the command recognition unit 18 according to the second embodiment first patterns an operation pattern formed by sequentially connecting coordinate information accumulated in the storage unit 13 in the order of accumulation, as in the first embodiment. For example, when the operation pattern shown in FIG. 5A is input, the command recognition unit 18 normalizes the operation pattern to a predetermined size (x0 × y0) as shown in FIG. 5B, and then, as shown in FIG. Feature point data (feature data) is extracted from an operation pattern of a predetermined size. Then, the command recognition unit 18 compares the feature data extracted from the operation pattern (coordinate information of each feature point) with the feature data of each registered pattern stored in the command table 13a. As a result, if all feature data matches, it is determined that the operation pattern matches the registered pattern, and if not all feature data matches a predetermined number of feature data, the operation pattern is similar to the registered pattern. Then, it is determined. When a registered pattern that matches or is similar to the operation pattern is stored in the command table 13a, the command recognition unit 18 reads a command corresponding to the registered pattern from the command table 13a. Thereby, the command (process) according to the user's operation (operation pattern) with respect to the touch panel 1a can be specified.

Therefore, in the touch panel circuit 10 of the second embodiment, the control unit 11 is formed by the coordinate information accumulated in the storage unit 13 in the command recognition unit 18 instead of the pattern matching process in step S6 in FIG. The process which extracts the feature data of the operation pattern to be performed is performed. In step S7 in FIG. 7, the control unit 11 compares the extracted feature data with the feature data of each registered pattern stored in the command table 13a, and stores the operation pattern in the command table 13a. It is determined whether it matches or resembles any of the registered patterns.
Processes other than these processes are the same as those in the first embodiment, and the same effects as those in the first embodiment can be obtained by such processes.

Next, in the touch display 1 according to the second embodiment, registration and change processing of the registration pattern stored in the command table 13a will be described. FIG. 14 is a flowchart illustrating a registration pattern registration process.
Also in the display circuit 20 of the second embodiment, as in the first embodiment, when the registration pattern registration and execution of the change process is instructed, the control unit 21 displays the registration screen information stored in the storage unit 23. The OSD display unit 27 is given to display a registration screen on the display 2a (S81). FIG. 15 is a schematic diagram illustrating an example of a registration screen. In the registration screen shown in FIG. 15A, the contents of each process executed on the touch display 1 (display circuit 20) are displayed. A registered pattern that is already associated with each process may be displayed.

Based on the coordinate information acquired from the touch panel circuit 10 via the connection unit 24, the control unit 21 determines whether or not a process (registration target) for registering (changing) the registration pattern has been selected (S82). In the registration screen illustrated in FIG. 15A, for example, if the user's operation position is within the “setting menu display” display area, it is determined that the setting menu display processing has been selected as a registration target.
When it is determined that the registration target has been selected (S82: YES), the control unit (display control unit) 21 gives the pattern input screen information stored in the storage unit 23 to the OSD display unit 27, and the pattern shown in FIG. 15B. An input screen (acceptance screen) is displayed on the display 2a (S83). FIG. 15B shows an example of a pattern input screen when the setting menu display process is selected as a registration target. The pattern input screen illustrated in FIG. 15B displays an input frame F in which the user can input by hand a pattern to be registered for the setting menu display process. The user inputs an arbitrary pattern by handwriting in the input frame F on the screen. If there is a pattern already registered, the pattern is displayed in the input frame F. Therefore, when the user wants to change the pattern, the user may input a new pattern after operating the delete button to delete the pattern currently displayed in the input frame F.

  When the pattern input screen is displayed, the control unit 21 gives the coordinate information acquired from the touch panel circuit 10 to the OSD display unit 27, and displays the pattern handwritten by the user in the input frame F (S84). FIG. 15B shows a state where a pattern handwritten by the user is displayed. Thereby, since the pattern which the user handwritten input with respect to the pattern input screen can be displayed on the display 2a, the user can confirm the pattern which he input.

Based on the coordinate information acquired from the touch panel circuit 10, the control unit 21 determines whether or not the user has operated the delete button in the pattern input screen (S85). If it is determined that the delete button has been operated (S85: YES), the control unit 21 deletes the pattern displayed in the input frame F on the OSD display unit 27 (S86). Next, the control unit 21 determines whether or not a new pattern has been input (handwritten input) by the user based on whether or not coordinate information has been acquired from the touch panel circuit 10 (S87). When it is determined that a new pattern has been input (S87: YES), the control unit 21 gives the coordinate information acquired from the touch panel circuit 10 to the OSD display unit 27, and displays the newly input pattern in the input frame F. (S88). If the control unit 21 determines that the delete button is not operated (S85: NO), it skips the processing of steps S86 to S88 and determines that no new pattern is input (S87: NO). The process of step S88 is skipped.
The control unit 21 determines whether or not the user has operated the OK button on the pattern input screen (S89). When it is determined that the OK button has not been operated (S89: NO), the control unit 21 returns the process to step S84, and each time the user performs handwriting input on the pattern input screen, the input pattern is input to the input frame F. Add to the inside and display.

  If it is determined that the OK button has been operated (S89: YES), the control unit 21 extracts feature data of the input pattern (S90). Specifically, the control unit 21 stores the coordinate information sequentially acquired from the touch panel circuit 10 in the RAM 22, and a pattern formed by connecting the coordinate information stored in the RAM 22 (the user can input the input frame F). Normalized pattern) is normalized to a predetermined size. And the control part 21 extracts the coordinate information (feature data) of a feature point from the operation pattern of predetermined size. The control unit 21 stores the feature data extracted from the operation pattern in the RAM 22 in association with the process (here, the setting menu display process), returns the process to step S81, and displays the registration screen shown in FIG. 15A. Return. In the registration screen here, a pattern registered via the pattern input screen shown in FIG. 15B may be displayed.

When it is determined that the registration target is not selected on the registration screen (S82: NO), the control unit 21 determines whether the end button is operated by the user based on the coordinate information acquired from the touch panel circuit 10. (S91). If it is determined that the end button has not been operated (S91: NO), the control unit 21 returns the process to step S82.
If it is determined that the end button has been operated (S91: YES), the control unit (pattern reception unit) 21 uses each pattern (feature data of each pattern) stored in the RAM 22 in association with each process as a registered pattern. Accept and register in the command table 13a (S92). Again, the control unit 21 sends the registration pattern set via the registration screen together with information indicating the corresponding processing from the connection unit 24 to the touch panel circuit 10, and updates the command table 13 a to the control unit 11. Instruct. The control unit 11 of the touch panel circuit 10 registers the registration pattern acquired from the display circuit 20 in the command table 13a in accordance with an instruction from the display circuit 20, and updates the command table 13a. And the control part 21 of the display circuit 20 complete | finishes the display of the registration screen currently displayed on the display 2a in the OSD display part 27 (S93).

  As described above, in the touch display 1 according to the second embodiment, the registered pattern to be compared (collated) with the operation pattern (contact pattern) of the user on the touch panel 1a can be changed to an arbitrary pattern. Therefore, the touch display 1 with better operability can be realized by registering in the registration pattern a pattern that is easy for the user to remember or input. Moreover, since the pattern which the user input arbitrarily by handwriting is made into a registration pattern, the pattern containing the wrinkle at the time of a user handwriting input can be made into a registration pattern. Therefore, it is also possible to restrict the operation on the touch display 1 via the touch panel 1a only to the user who has registered the registration pattern.

  In addition, when characters or symbols are registered as a registered pattern, words or sentences including characters or symbols used in the registered pattern are input to the touch panel 1a during operation of the PC 3 via the touch panel 1a. Thus, there is a high possibility that the touch display 1 executes a command for this registered pattern. That is, even though the user operates the PC 3 via the touch panel 1a, the touch display 1 erroneously determines that an operation on the device itself has been performed, and is likely to malfunction. Therefore, by using a pattern having a shape different from letters, numbers, or symbols for the registration pattern, the possibility that the touch display 1 malfunctions while the user operates the PC 3 via the touch panel 1a is reduced, and the operability is improved. improves.

(Embodiment 3)
Below, the touch display 1 of Embodiment 3 is demonstrated. The touch display 1 according to the third embodiment has the same configuration as the touch display 1 according to the first embodiment described above, and the same components are denoted by the same reference numerals and description thereof is omitted. Moreover, the touch display 1 of this Embodiment 3 performs the same process as the process which the touch display 1 of the above-mentioned Embodiment 1 performs except the process demonstrated below.

In the touch panel circuit 10 according to the first embodiment, each time the coordinate calculation unit 17 calculates the coordinate information of the user's operation position with respect to the touch panel 1a and stores the coordinate information in the storage unit 13, the command recognition unit 18 uses the stored coordinate information. Pattern matching processing is performed on the operation pattern to be formed.
On the other hand, in the third embodiment, when the operation pattern formed by the coordinate information calculated by the coordinate calculation unit 17 and accumulated in the storage unit 13 exceeds a predetermined size, the command recognition unit 18 However, pattern matching processing is performed on this operation pattern.

FIG. 16 is a flowchart illustrating a procedure of processes performed by the touch display 1 and the PC 3 according to the third embodiment. The process shown in FIG. 16 is obtained by adding steps S101 and S102 to the process shown in FIG. 7, and a part of the process shown in FIG. 7 is not shown.
In the touch panel circuit 10 according to the third embodiment, the control unit 11 performs the same processing as steps S1 to S5 in FIG. In the touch panel circuit 10 according to the third embodiment, the control unit 11 specifies the size of the operation pattern formed by the coordinate information accumulated in the storage unit 13 (S101). For example, the control unit 11 specifies the minimum value and the maximum value of the x coordinate value and the minimum value and the maximum value of the y coordinate value in the coordinate information stored in the storage unit 13, and calculates the difference value of each. The length in the x-axis direction and the length in the y-axis direction are acquired as the size of the operation pattern.

Then, the control unit (determination unit) 11 determines whether or not the specified size is greater than or equal to a predetermined size (S102). For example, the control unit 11 determines whether the length in the x-axis direction and the length in the y-axis direction are half or more of the horizontal length of the display 2a or more than half of the length in the vertical direction. Determine whether or not. If it is determined that the size is not equal to or larger than the predetermined size (S102: NO), the control unit 11 returns the process to step S1, and continues to calculate and accumulate coordinate information. When it is determined that the specified size is equal to or larger than the predetermined size (S102: YES), the control unit 11 causes the command recognition unit 18 to change the operation pattern formed by the coordinate information stored in the storage unit 13 to the operation pattern. On the other hand, a predetermined pattern matching process is performed (S6). And the control part 11 performs the process after step S7.
Processes other than steps S101 and S102 are the same as those in the first embodiment, and the same effects as those in the first embodiment can be obtained by such processes.

As described above, whether or not to perform the pattern matching process and the matching process with the registered pattern is switched according to whether or not the operation pattern input by the user on the touch panel 1a is greater than or equal to a predetermined size. Thereby, based on the magnitude | size of an operation pattern, it can distinguish clearly whether the operation performed with respect to the touchscreen 1a is operation with respect to PC3, or operation with respect to the touch display 1. FIG.
For example, when the touch display 1 is applied to an electronic blackboard system, characters of about 5 to 10 cm square are usually written on the touch panel 1a (display 2a) when used as an electronic blackboard. Therefore, the size serving as a criterion for determining whether or not to perform the pattern matching process and the matching process with the registered pattern is set to 20 cm square or more, 30 cm square or more, or the like. Thereby, when the user is performing an operation as an electronic blackboard on the touch panel 1a, it is possible to prevent the touch display 1 from erroneously determining that an operation on the own device has been performed. Therefore, malfunction of the touch display 1 can be prevented.

  Although the above-described second embodiment has been described as a modification of the first embodiment, a configuration similar to that of the second embodiment can be employed in the third embodiment.

  The preferred embodiments of the present invention have been specifically described above. However, each configuration, operation, and the like can be changed as appropriate, and are not limited to the above-described embodiments.

  A display device according to the present invention includes a display unit that acquires and displays an image signal from an external device, a detection unit that detects a contact position of the display unit with respect to a display screen, and a contact position detected by the detection unit. In a display device including a transmission unit that transmits to a device, a plurality of patterns and a storage unit that stores information indicating processing corresponding to each pattern in association with each other, and a plurality of contact positions detected in time series by the detection unit A contact position storage unit that sequentially stores a contact pattern and a contact pattern defined as a set of contact positions stored in the contact position storage unit that matches or resembles a pattern stored in the storage unit And an execution unit that reads information indicating processing according to the pattern specified by the specifying unit from the storage unit and executes processing indicated by the read information.

  According to the present invention, when the contact pattern on the display screen matches or resembles a pre-registered pattern, the display device executes processing according to this pattern. Therefore, the execution instruction of the process performed by the display device can be performed via the display screen, and for example, there is no need to operate a remote controller provided in advance in the display device. Therefore, for example, even when an operation is performed on the external device via the display screen of the display device, the operation on the display device can be performed via the display screen of the display device.

  The display device according to the present invention includes a determination unit that determines whether or not a contact pattern defined as a set of contact positions stored in the contact position storage unit is larger than a predetermined size, and the specifying unit includes: When the determination unit determines that the size is larger than a predetermined size, it is specified which of the patterns stored in the storage unit matches or resembles the contact pattern.

  According to the present invention, when the contact pattern on the display screen is larger than a predetermined size, it is determined whether or not the contact pattern matches or resembles a previously registered pattern. Thereby, it can be prevented that an operation through the display screen of the display device is an operation on the external device or an operation on the display device. Therefore, when an operation is performed on an external device via the display screen of the display device, it can be prevented that the operation on the display device is erroneously determined.

  In the display device according to the present invention, the storage unit stores a plurality of characters or symbols and information indicating processing corresponding to each of the characters or symbols, and the specifying unit stores the information in the contact position storage unit. A pattern recognition unit that identifies whether a contact pattern defined as a set of touched positions is a predetermined character or symbol, and the character or symbol specified by the pattern recognition unit is stored in the storage unit It is characterized in that it is specified whether the character or symbol matches or is similar.

  According to the present invention, by using characters or symbols in a pattern registered in advance, it is possible to easily detect what character or symbol the contact pattern is by performing pattern authentication for the contact pattern on the display screen. . Therefore, it is easy to compare the contact pattern input by handwriting via the display screen with the pattern registered in advance.

  The display device according to the present invention includes a receiving unit that receives a character or a symbol associated with each of a plurality of processes, and a character or a symbol that is received by the receiving unit in association with each of the plurality of processes. And a storage control unit for storing the data.

  According to the present invention, since a character or a symbol is used for a pattern to be registered in advance, it is only necessary to specify a character or a symbol when registering the pattern, and the pattern can be easily registered.

  The display device according to the present invention includes a display control unit that displays a reception screen that receives a pattern associated with each of a plurality of processes on the display unit, and a contact position with respect to the reception screen displayed on the display unit. Are received in time series, and a pattern receiving unit that receives a contact pattern defined as a set of a plurality of contact positions sequentially stored in the contact position storage unit, and the pattern in association with each of the plurality of processes And a storage control unit that stores the contact pattern received by the reception unit in the storage unit.

  According to the present invention, a pattern that is arbitrarily input by handwriting is used as a pattern that is registered in advance. Therefore, a pattern for instructing execution of each process can be a user-specific pattern.

  In the display device according to the present invention, the transmission unit stops transmission of the contact position detected by the detection unit to the external device when the identification unit identifies a pattern that matches or is similar. It is characterized by.

  According to the present invention, when a contact pattern on the display screen matches or is similar, that is, when an operation is performed on the display device via the display screen, the display device communicates with an external device. Stop. This prevents the user's contact position on the display screen from being transmitted to the external device thereafter. Therefore, when an operation is performed on the display device via the display screen of the display device, it is possible to prevent the external device from malfunctioning based on this operation.

  The display device according to the present invention is characterized in that the transmitting unit transmits the contact position detected by the detecting unit to the external device when the identifying unit cannot identify a matching or similar pattern. To do.

  According to the present invention, when a pattern that matches or resembles the contact pattern on the display screen is not specified, that is, when no operation is performed on the display device via the display screen, the display device communicates with the external device, and the user The contact position by is transmitted to the external device. Therefore, when an operation is performed on the external device via the display screen of the display device, the operation (contact position) by the user is reliably transmitted to the external device, and the external device follows the operation by the user. Can perform the following actions.

  In the display device according to the present invention, the storage unit stores information indicating control processing for controlling the operation of the external device in association with the pattern, and processing corresponding to the pattern specified by the specifying unit In the case of control processing for controlling the operation of the external device, a signal transmission unit for transmitting a control signal related to the control processing to the external device is provided.

  According to the present invention, it is also possible to instruct execution of a control process for controlling the operation of the external device by an operation (contact pattern) on the display screen, and when the execution of the control process of the external device is instructed, the execution instruction is given. A control signal related to the control process is transmitted to the external device. Therefore, not only the position of the user touching the display screen but also the control signal is transmitted from the display device to the external device.

1 Touch panel display (display device)
3 PC (external device)
10 touch panel circuit 11 control unit (execution unit, signal transmission unit, determination unit, storage control unit)
13 storage unit (contact position storage unit)
15 PC connection part (transmission part)
17 Coordinate calculation unit (detection unit)
18 Command recognition part (specific part, pattern recognition part)
20 display circuit 21 control unit (execution unit, reception unit, display control unit, pattern reception unit)
2a Display (display part)
13a Command table (storage unit)

Claims (5)

A display unit that acquires and displays an image signal from an external device, a detection unit that detects a contact position of the display unit with respect to the display screen, and a transmission unit that transmits the contact position detected by the detection unit to the external device. In a display device comprising:
A storage unit that stores a plurality of patterns and information indicating processing corresponding to each pattern in association with each other;
A contact position storage unit that sequentially stores a plurality of contact positions detected in time series by the detection unit;
A specifying unit that specifies which of the patterns stored in the storage unit matches or resembles a contact pattern defined as a set of contact positions stored in the contact position storage unit;
A display device comprising: an execution unit that reads information indicating a process according to a pattern specified by the specifying unit from the storage unit and executes a process indicated by the read information. A determination unit that determines whether or not a contact pattern defined as a set of contact positions stored in the contact position storage unit is larger than a predetermined size;
When the determination unit determines that the determination unit is larger than a predetermined size, the specifying unit specifies which of the patterns stored in the storage unit matches or is similar to the contact pattern. The display device according to claim 1. The storage unit stores a plurality of characters or symbols in association with information indicating processing corresponding to each,
The specific part is:
A pattern recognition unit for specifying whether a contact pattern defined as a set of contact positions stored in the contact position storage unit is a predetermined character or symbol;
3. The character or symbol specified by the pattern recognition unit is specified as a character or symbol stored in the storage unit that matches or resembles the character or symbol. Display device. A display control unit that displays on the display unit a reception screen that accepts a pattern associated with each of a plurality of processes;
Pattern reception for detecting a contact position with respect to the reception screen displayed on the display unit in time series and receiving a contact pattern defined as a set of a plurality of contact positions sequentially stored in the contact position storage unit And
The display device according to claim 1, further comprising: a storage control unit that stores the contact pattern received by the pattern receiving unit in the storage unit in association with each of the plurality of processes. The transmission unit is configured to stop transmission of the contact position detected by the detection unit to the external device when the specifying unit specifies a matching or similar pattern. 4. The display device according to any one of 4 to 4.

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