JP2016170660A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for enabling an input assist tool to be easily set on a screen without being lost.SOLUTION: A display device according to the present invention comprises: a screen; a contact sensor which detects a contact position where an operation body comes into contact with the screen; an input assist tool that a user slides between a position on the screen and a standby position not on the screen; a detection part which detects a position of the input assist tool; and a control part which allows a key display to be made on the screen and accepts an input operation corresponding to the key display when the contact position of the operation body detected by the contact sensor is a position on the screen which corresponds to the position of the input assist tool.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a display device.

  There is known a portable terminal configured to be able to operate a touch panel by attaching a removable cover part on the touch panel and pressing a key provided on the cover part (for example, Patent Document 1).

JP 2012-168869 A

However, there is a problem in that the cover part is easily lost when removed and the cover part cannot be easily attached to the touch panel.
An object of this invention is to provide the technique which can be easily set to a screen, without losing an input auxiliary tool.

  In order to achieve the object, the display device of the present invention allows a user to slide between a screen, a contact sensor that detects a contact position of the operating body with respect to the screen, and a position on the screen and a standby position outside the screen. Possible input assist tool, detection unit that detects the position of the input assist tool, and key display on the screen, the contact position of the operating tool detected by the contact sensor is on the screen corresponding to the position of the input assist tool And a control unit that accepts an input operation corresponding to the key display. Note that the contact may include the fact that the operating body has approached the vicinity of the screen even if the contact is not strictly made.

  In the above configuration, the user performs an input operation corresponding to the key display by sliding the input assisting tool to a position on the screen and bringing the operating tool into contact with the position on the screen corresponding to the position of the input assisting tool. be able to. On the other hand, when the input operation corresponding to the key display is not performed, the user can visually recognize the screen without being interrupted by the input assisting tool by sliding the input assisting tool to the standby position outside the screen. Since the input auxiliary tool is slidable, the input auxiliary tool can be easily set at a position on the screen without being lost. Furthermore, in order to set the contact position on the screen that receives the input operation corresponding to the key display to the position corresponding to the position of the input assist tool detected by the detection unit, the user accurately adjusts the position where the input assist tool is slid. It does not have to be. Here, sliding means that the input auxiliary tool moves in a direction parallel or substantially parallel to the screen, and the movement is linear movement, rotational movement, or various curved movements in a plane parallel to the screen. May be.

  The control unit may set the key display position on the screen to a position independent of the position of the input assisting tool detected by the detection unit. That is, the contact position of the operating body that receives the input operation depends on the position of the input auxiliary tool detected by the detection unit, while the key display position on the screen depends on the position of the input auxiliary tool detected by the detection unit. It may not be allowed to. Thereby, the position of the key display on the screen can be kept constant, and the key display can be easily recognized. Here, when a part of the screen cannot be visually recognized due to being shielded by the input assisting tool, it is considered that the user slides the input assisting tool to a position where the key display is easily visible without being shielded by the input assisting tool. In this way, by moving the position of the key display depending on the actual position of the input assisting tool despite the fact that the user has slid the input assisting tool to a position where the corner and the key display are easily visible, It is possible to prevent the key display from becoming difficult to visually recognize.

  Furthermore, the detection unit may detect the position of the input assisting tool based on the contact position of the operating body detected by the contact sensor. Since the position of the input assisting tool can be detected by the contact sensor, it is not necessary to separately provide a detector for detecting the position of the input assisting tool.

  Further, the input assisting tool may be provided with a position detection mechanism that contacts the screen, and the detection unit may detect the position of the input assisting tool based on the contact position of the position detection mechanism detected by the contact sensor. Even in this configuration, since the position of the input assisting tool can be detected by the contact sensor, it is not necessary to separately provide a detector for detecting the position of the input assisting tool.

  Furthermore, the detection unit may detect the position of the input assisting tool based on a detection result of a detector that detects the position of the input assisting tool. That is, the position of the input assisting tool need not necessarily be detected by the contact sensor, and may be detected by a sensor other than the contact sensor.

  Further, the detector may be provided on a rail on which the input auxiliary tool slides when sliding. As described above, by providing the detector on the rail on which the input auxiliary tool slides, the position where the input auxiliary tool slides can be accurately detected.

FIG. 1A is a perspective view of the printer, and FIG. 1B is a block diagram of the printer. 2A is a perspective view of the operation unit, and FIG. 2B is an exploded perspective view of the operation unit. It is a flowchart of input operation reception processing. 4A is a diagram showing a print condition setting display, and FIG. 4B is a diagram showing the relationship between the key display unit and the operation detection area. FIG. 5A is a side view of an input assisting tool according to another embodiment, and FIG. 5B is a perspective view of a printer according to another embodiment.

Hereinafter, embodiments of the present invention will be described in the following order with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the corresponding component in each figure, and the overlapping description is abbreviate | omitted.
(1) Device configuration:
(2) Input operation acceptance processing:
(3) Other embodiments:

(1) Device configuration:
FIG. 1A is a perspective view of a printer 1 including a display device according to a first embodiment of the present invention. The printer 1 includes a main body housing 10, an operation unit 20, a paper feed tray 30, and a paper discharge tray 40 as an external configuration. The operation unit 20 is provided on the side surface (front surface) of the main body housing 10. The operation unit 20 may be provided on the upper surface of the main body housing 10 or may be connected to the main body housing 10 so as to be tiltable. The operation unit 20 includes a touch panel display 21, an input auxiliary tool 22, and rails 23a and 23b.

  The touch panel display 21 includes an LCD display as a screen and a touch sensor as a contact sensor. The touch sensor detects the contact position of the operating body with respect to the LCD display. For example, the tip of a finger or a touch pen constitutes the operating body. The printer 1 performs printing on the print medium set in the paper feed tray 30 and discharges the printed print medium to the paper discharge tray 40. Note that the display device of the present invention is not necessarily provided in the printer 1 and can be included in any device that accepts an input operation from a user on a screen.

  FIG. 1B is a block diagram illustrating a functional configuration of the printer 1. A control unit 11, a transport unit 12, and a printing unit 13 are incorporated in the main body housing 10 of the printer 1. The control unit 11 is a computer including a processor, a memory, and an input / output interface. The control unit 11 controls the transport unit 12, the printing unit 13, and the operation unit 20 by executing a printing program.

  The transport unit 12 is hardware for transporting a print medium from the paper feed tray 30 to the print unit 13, and further transports a printed print medium from the print unit 13 to the paper discharge tray 40, and is controlled by the control unit 11. Is done. Specifically, the transport unit 12 includes a transport roller such as a pickup roller, a drive motor for driving the transport roller, a control circuit for controlling the drive motor, and the like.

  The printing unit 13 is hardware for printing on a print medium, and is controlled by the control unit 11. Specifically, the control unit 11 includes a print head, a drive motor that drives the print head, a control circuit that controls the print head and the drive motor, and the like.

  FIG. 2A is a perspective view of the operation unit 20. As shown in the figure, the touch panel display 21 has a rectangular shape, and linear rails 23 a and 23 b are provided along the upper and lower sides of the touch panel display 21. The length H of the input auxiliary tool 22 in the vertical direction is longer than the length J in the vertical direction of the touch panel display 21, and the width W in the horizontal direction is shorter than the width V in the horizontal direction of the touch panel display 21.

  The input auxiliary tool 22 includes a lattice portion 22a and four connecting portions 22b1 to 22b4. The vertical length H of the input assisting tool 22 is longer than the vertical length J of the touch panel display 21. In the lattice portion 22a, rectangular openings O are formed so as to be arranged in a matrix (for example, 5 rows × 3 columns), and the lattice portion 22a has an orthogonal lattice shape. The connecting portions 22b1 to 22b4 are linear portions extending vertically from the four corners of the lattice portion 22a, and connect the lattice portion 22a and the rails 23a and 23b. The grid portion 22a is held at the same height as the touch panel display 21 by the connecting portions 22b1 to 22b4.

  The upper and lower rails 23a and 23b are parallel to each other and have the same length L. Of the rails 23a and 23b, the length L1 of the portion overlapping the touch panel display 21 in the horizontal direction is longer than the width W of the input auxiliary tool 22, and the length L2 of the portion not overlapping the touch panel display 21 in the horizontal direction is also input assistance. It is formed longer than the width W of the tool 22. The length H of the input auxiliary tool 22 in the vertical direction is equal to the interval between the rails 23a and 23b in the vertical direction.

  FIG. 2B is an exploded perspective view of the operation unit 20. A groove Ra that opens downward is formed in the upper rail 23a and has a U-shaped cross section. The lower rail 23b is formed in a vertically symmetrical shape with the upper rail 23a, and a groove Rb that opens upward is formed. The upper ends of the two connecting portions 22b1 and 22b2 extending upward from the lattice portion 22a are inserted into the groove Ra formed in the upper rail 23a. On the other hand, the lower ends of the two connecting portions 22b3 and 22b4 extending downward from the lattice portion 22a are inserted into the groove Rb formed in the lower rail 23b. Grooves Ra and Rb are not formed at both ends of the rails 23a and 23b in the width direction. That is, the grooves Ra and Rb are not opened in the width direction.

  Here, the position of the input assisting tool 22 slid to the left end of the rails 23a and 23b is defined as a use position, and the position of the input assisting tool 22 slid to the right end of the rails 23a and 23b is defined as a standby position. The use position is a position where the entire grid portion 22 a of the input assisting tool 22 is on the touch panel display 21. On the other hand, the standby position is a position where the entire grid portion 22 a of the input assisting tool 22 is outside the touch panel display 21.

  With the above configuration, the user can slide the input auxiliary tool 22 in the width direction within the range of the length L of the rails 23a and 23b by sliding the input auxiliary tool 22 along the rails 23a and 23b. it can. That is, the input assisting tool 22 is configured to allow the user to slide between the use position on the touch panel display 21 and the standby position outside the touch panel display 21. Since the grooves Ra and Rb are not opened at both ends in the width direction of the rails 23a and 23b, the input assisting tool 22 is not dropped from the rails 23a and 23b.

(2) Input operation acceptance processing:
FIG. 3 is a flowchart of the input operation reception process. The input operation accepting process is a process executed by the control unit 11 in order for the printer 1 to accept various input operations. In the present embodiment, an example of accepting a series of input operations for setting printing conditions by an input operation accepting process will be described. First, the control unit 11 displays a print condition setting display on the touch panel display 21 (step S100). Specifically, the control unit 11 generates image data corresponding to the print condition setting display and outputs the image data to the touch panel display 21.

  FIG. 4A shows an example of the printing condition setting display U. The print condition setting display U includes a key display unit U1 and a setting item display unit U2. The key display unit U <b> 1 is a key display representing a so-called numeric keypad, and is displayed so that an image corresponding to each key of the numeric keypad has the same size and arrangement as the opening O of the input auxiliary tool 22. In the setting item display unit U2, the first notification unit U2a showing a message “Please slide the input auxiliary tool to the position of the numeric keypad” and “Press the number 8 key when the input auxiliary tool is slid. And a second notification unit U2b indicating a message saying “ Further, the setting item display unit U2 is provided with an item part U2c for each setting item. The item part U2c includes a name part U2c1 indicating the name of the setting item and a content part U2c2 indicating the current setting content. It is. Further, the setting item display unit U2 includes a print start button U2d.

  When the above printing condition setting display U is displayed on the touch panel display 21, the control unit 11 determines whether or not a contact position is detected within a predetermined effective area Y on the touch panel display 21 (step S110). The effective area Y is an area obtained by adding an area within a predetermined distance (for example, half the length of one key display side) from the key display area to the eighth key display area in the key display unit U1. (The region of the one-dot chain line in FIG. 4A). Since the input assisting tool 22 slides on the key display unit U1, the input assisting tool 22 (lattice unit) is pressed in order to press the center key (third row and second column) of the key display unit U1. An operation body such as a finger comes into contact with the touch panel display 21 through the opening O in the center (third row and second column) of 22a).

  When the contact position is not detected in the effective area Y (step S110: N), the control unit 11 determines whether the contact position is continuously detected in the effective area Y. On the other hand, when the contact position is detected in the effective area Y (step S110: Y), the control unit 11 sets the operation detection area based on the contact position detected in the effective area Y (step S120). ). Here, since there is no way to detect a temporary contact that the input assisting tool 22 contacts while moving, the contact position is detected at a position where the contact is continuously detected for a certain period of time. Deciding. The contact position detected in the effective area Y means the center position of the input assisting tool 22 detected by the touch sensor. That is, the control unit 11 as a detection unit detects the center position T of the input auxiliary tool 22 based on the contact position of the operating body detected by the touch sensor.

  FIG. 4B is a diagram illustrating a relationship between the key display unit U1 and the operation detection area B. The operation detection area B is constituted by a key area B1 for accepting an operation corresponding to each key display constituting the key display unit U1, and the size and arrangement of the key area B1 is different from each key display constituting the key display part U1. It is the same. However, the center position C1 (solid white circle) of the key display unit U1 does not coincide with the center position C2 (dashed white circle) of the operation detection area B, and the control unit 11 detects the input auxiliary tool detected by the touch sensor in step S110. The operation detection area B is set so that the center position C2 of the operation detection area B coincides with the center position T of 22. As described above, the operation detection area B can be set at a position on the touch panel display 21 corresponding to the center position T of the input assist tool.

  If the center position T of the input assisting tool 22 is not detected even after the predetermined period has elapsed, the control unit 11 detects the operation so that the center position C2 of the operation detection area B matches the center position C1 of the key display unit U1. Region B may be set. In addition, when the center position T of the input assisting tool 22 is not detected even after a predetermined period has elapsed, the control unit 11 may cause the touch panel display 21 to display a message that strongly urges the input assisting tool 22 to slide. The control unit 11 does not necessarily need to detect the center position T as the position of the input auxiliary tool 22, and may detect the position of the end or corner of the input auxiliary tool 22. Further, the control unit 11 may detect two or more positions of the input assisting tool 22.

  When the operation detection area B is set, the control unit 11 receives an input operation on the key display unit U1 (step S130). Specifically, when the contact position of the operating tool is detected in the area where the item part U2c of the setting item display part U2 is displayed, the control unit 11 specifies the setting content indicated by the content part U2c2 of the item part U2c To accept an input operation. That is, the control unit 11 detects the position on the touch panel display 21 corresponding to the center position T of the input assisting tool 22 detected by the touch sensor (operation detection area B). If it is, an input operation corresponding to the key display is accepted. This input operation may be an operation of inputting a number corresponding to each key display constituting the key display unit U1. For example, it may be configured such that a desired number of copies can be designated by inputting a number corresponding to each key display constituting the key display unit U1. Further, the input operation may be an operation of inputting the up / down / left / right cursor movement directions assigned to the No. 8, 2, 4 and 6 key displays constituting the key display unit U1. For example, a desired print resolution or the like may be designated by moving the cursor from a list of print resolutions or the like prepared in advance by moving the cursor up / down / left / right.

  Next, the control unit 11 determines whether or not a print start instruction has been issued (step S140). Specifically, when the contact position of the operating tool is detected in the area where the print start button U2d is displayed, the control unit 11 determines that a print start instruction has been issued. If it is not determined that a print start instruction has been issued (step S140: N), the control unit 11 continues to accept input operations on the key display unit U1.

  On the other hand, if it is determined that a print start instruction has been issued (step S140: Y), the control unit 11 causes the touch panel display 21 to display a print status display (step S150). That is, the control unit 11 deletes the print condition setting display U including the key display unit U1 from the touch panel display 21 and causes the touch panel display 21 to display a print status display. This print status display includes a portion indicating a message “Please slide the input assist tool to the original position (standby position)”. In the period of steps S100 to S140, the control unit 11 continues to display the key display unit U1 at a certain position. That is, the control unit 11 sets the position of the key display unit U1 as a position independent of the center position T of the input assist tool detected by the touch sensor.

  In the above configuration, the user slides the input assisting tool 22 to a position on the touch panel display 21 and brings the operating body into contact with the position on the touch panel display 21 corresponding to the position of the input assisting tool 22, thereby displaying a key. Corresponding input operations can be performed. On the other hand, when the input operation corresponding to the key display is not performed, the user slides the input assisting tool 22 to a standby position outside the touch panel display 21, and the touch assist display 21 (print status) is not obstructed by the input assisting tool 22. Display). Since the input auxiliary tool 22 is slidable, the input auxiliary tool 22 can be easily set at a position on the touch panel display 21 without being lost. Furthermore, in order to set the contact position (operation detection area B) on the touch panel display 21 that accepts an input operation corresponding to the key display to a position corresponding to the center position T of the input auxiliary tool 22 detected by the touch sensor, the input auxiliary tool The user does not have to adjust the position for sliding 22 accurately.

  Further, the user does not always look at the touch panel display 21 from the front. Therefore, the control part 11 makes the position of the key display part U1 on the touch panel display 21 the position of the key display part U1 on the touch panel display 21 by making the position independent of the position of the input assisting tool 22 detected by the touch sensor. The position can be kept constant, and the key display portion U1 can be easily seen. Here, when the user is viewing the touch panel display 21 from an oblique direction, a part of the touch panel display 21 may not be visually recognized due to being shielded by the input assisting tool 22. In this case, when the user slides the input assisting tool 22 to a position where the key display unit U1 is easily visible without being shielded by the input assisting tool 22 (a position where each key display can be easily viewed from the opening O from the user's viewpoint). Conceivable. As described above, the position of the key display unit U1 depends on the actual position of the input assisting tool 22 despite the fact that the user has slid the input assisting tool 22 to a position where the key display unit U1 is easily visible. By moving the key, it is possible to prevent the key display unit U1 from becoming difficult to visually recognize.

  Furthermore, since the center position T of the input assisting tool 22 is detected based on the contact position of the operating body detected by the touch sensor as the detection unit, a detector for detecting the position of the input assisting tool 22 is not provided separately. You can do it.

(3) Other embodiments:
It should be noted that the technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention, including the combination of the above-described embodiments. It is. Of course, the display device of the present invention may be incorporated in a device other than the printer 1.

  The standby position is not necessarily provided on the right side of the touch panel display 21, and the standby position may be provided on the left side, upper side, or lower side of the touch panel display 21. Further, it is possible to adopt a configuration other than that a finger or the like as an operating body comes into contact with the touch panel display 21 through the opening O formed in the input auxiliary tool 22. For example, the input assisting tool 22 may be configured such that a projection as an operating body is provided for each key display on the touch panel display 21 side of the input assisting tool 22 so that the projection can be pressed to the touch panel display 21 side. For example, a hardware key such as a numeric keypad may be provided on the input assisting tool 22, and a projection corresponding to the hardware key may be brought into contact with the touch panel display 21 side by pressing the key top of the hardware key. .

  The control unit 11 does not necessarily have to set the position of the key display unit U1 as a position independent of the detected center position T of the input assisting tool 22. For example, the control unit 11 may set the position of the key display unit U1 as a position dependent on the detected center position T of the input assisting tool 22, and the same position as the operation detection area B set based on the center position T. It is good.

  Here, the input assisting tool 22 is provided with a position detection mechanism that comes into contact with the touch panel display 21, and the control unit 11 as the detection unit detects the input assisting tool 22 based on the contact position of the position detection mechanism detected by the touch sensor. The position may be detected. Further, the input assisting tool 22 may not correspond to the numeric keypad display, and may not correspond to a plurality of key displays. For example, it may correspond to each direction key of the cross key, or may be a component for operating a single key display. Further, the input assisting tool 22 may not be a part for pressing down the key display, but may be a part for guiding an operation of flicking the key display in a specific direction.

  FIG. 5A is a view of the input auxiliary tool 22 according to another embodiment as viewed from a direction parallel to the touch panel display 21. As shown in the figure, the input assisting tool 22 is provided with a position detection mechanism P that protrudes toward the touch panel display 21. When the input assisting tool 22 slides on the touch panel display 21, the position detection mechanism P comes into contact with the touch panel display 21, and the touch sensor can detect the contact position of the position detection mechanism P. Even in this configuration, since the position of the input auxiliary tool 22 can be detected by the touch sensor, it is not necessary to provide a detector for detecting the position of the input auxiliary tool 22 separately.

  Furthermore, the control unit 11 as a detection unit may detect the position of the input assisting tool 22 based on the detection result of a detector that detects the position of the input assisting tool 22. That is, the position of the input assisting tool 22 may not necessarily be detected by the touch sensor, and may be detected by a sensor other than the touch sensor. Specifically, the detector may be provided on rails 23a and 23b on which the input auxiliary tool 22 slides when sliding. For example, the detector may be configured by providing photo interrupters in which emitted light is shielded by the upper end of the connecting portion 22b1 at a plurality of positions in the length direction of the upper rail 23a. For example, by making the upper end of the other connecting portion 22b2 transparent, the control unit 11 can uniquely detect the position of the upper end of the connecting portion 22b1. Of course, the detector may be an element whose electrical state changes due to contact with the upper end of the connecting portion 22b1, or may be an element whose mechanical state changes due to contact with the upper end of the connecting portion 22b1. Of course, the detector may be provided on the lower rail 23b.

  FIG. 5B shows an input auxiliary tool 22 according to another embodiment. As shown in the figure, the input assisting tool 122 can slide between the use position and the standby position by rotating around the rotation axis Q perpendicular to the touch panel display 21. As described above, the input assisting tool 22 may be slid in parallel with the touch panel display 21 by rotating the input assisting tool 122. Further, the input assisting tool 22 does not necessarily have a plate shape at the standby position. For example, the input auxiliary tool 22 may be wound and stored at the standby position, or may be folded and stored.

  Furthermore, you may provide the structure which a user can position the input auxiliary tool 22 easily. For example, an elastic member that extends in a direction perpendicular to the touch panel display 21 is provided at the upper ends of the connecting portions 22b1 and 22b2, and the upper ends of the connecting portions 22b1 and 22b2 are inserted into the rail 23a in a state where the elastic members are compressed. May be. And by providing the recessed part which permits the decompression | restoration of the said elastic member in a part of rail 23a, the input auxiliary tool 22 can be positioned in the state in which the upper end of connection part 22b1, 22b2 is located in the said recessed part. What is necessary is just to form a recessed part so that the input auxiliary tool 22 may be located in a use position at least. Of course, the lower connecting portions 22b3 and 22b4 may be positioned by the lower rail 23a.

Further, a cover that hides the input assisting tool 22 at the standby position may be provided.
The touch panel can employ various systems such as a resistive film system and a surface acoustic wave system. A method such as a capacitance method or an infrared method may be used in which it is determined that a pointing tool such as a finger has touched the screen when it has come close to the screen without actually touching the screen.
The display device is not limited to a printer, and may be various devices such as a scanner, a mobile phone, and an ATM machine (automatic teller machine).

DESCRIPTION OF SYMBOLS 1 ... Printer, 10 ... Main body housing | casing, 11 ... Control part, 12 ... Conveyance part, 13 ... Printing part, 20 ... Operation part, 21 ... Touch panel display, 22 ... Input auxiliary tool, 22a ... Grid part, 22b1-22b4 ... Connection part, 23a, 23b ... Rail, 30 ... Paper feed tray, 40 ... Paper discharge tray, B ... Operation detection area, B1 ... Key area, C1, C2 ... Center position, O ... Opening, P ... Position detection mechanism, Q ... Rotary axis, Ra, Rb ... Groove, T ... Center position, U ... Print condition setting display, U1 ... Key display part, U2 ... Setting item display part, U2a, U2b ... Notification part, U2c ... Item part, U2c1 ... Name Part, U2c2 ... content part, U2d ... print start button, Y ... effective area.

Claims (6)

Screen,
A contact sensor for detecting a contact position of the operating body with respect to the screen;
An input aid that allows the user to slide between a position on the screen and a standby position outside the screen;
A detection unit for detecting the position of the input assisting tool;
Input corresponding to the key display when the touch position of the operating body detected by the contact sensor is a position on the screen corresponding to the position of the input auxiliary tool. A control unit for receiving an operation;
A display device comprising: The control unit sets the position of the key display on the screen as a position independent of the position of the input auxiliary tool detected by the detection unit.
The display device according to claim 1. The detection unit detects a position of the input assisting tool based on a contact position of the operating body detected by the contact sensor;
The display device according to claim 1. The input auxiliary tool is provided with a position detection mechanism that contacts the screen,
The detection unit detects a position of the input assisting tool based on a contact position of the position detection mechanism detected by the contact sensor;
The display device according to claim 1. The detection unit detects the position of the input auxiliary tool based on a detection result of a detector that detects the position of the input auxiliary tool.
The display device according to claim 1. The detector is provided on a rail on which the input auxiliary tool slides when the input auxiliary tool slides.
The display device according to claim 5.

Images