WO2019030822A1

WO2019030822A1 - Display device with touch panel

Info

Publication number: WO2019030822A1
Application number: PCT/JP2017/028767
Authority: WO
Inventors: 和寛渡邉
Original assignee: 三菱電機株式会社
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2019-02-14
Also published as: JPWO2019030822A1; JP6749496B2

Abstract

An operation panel (2) provided with a touch panel of a projection electrostatic capacitive type is provided with: an operation determination unit (24) that determines, on the basis of the amount of change of electrostatic capacity, whether a touch button of the touch panel has been operated; and a display control unit (25) that, when the operation determination unit (24) determines that the touch button has been operated, causes lighting of a touch button LED corresponding to the operated touch button according to the amount of change of the electrostatic capacity.

Description

Display with touch panel

The present invention relates to a display device with a touch panel capable of adjusting the sensitivity of the touch panel.

In recent years, products using a touch panel instead of a physical button as an input device are increasing. The capacitive touch panel includes, for example, an acrylic plate and an electrode provided on the back side of the acrylic plate. In the capacitive touch panel, a user with capacitance touches the surface side of the acrylic plate to change the capacitance between the surface of the acrylic plate and the electrode, thereby making it possible for the user to Detecting a touch.

In the capacitive touch panel, the size of the user's finger, the time when the user touches the surface of the acrylic plate, and the difference in the environment such as the temperature and humidity of the installation place of the touch panel In order to detect or not detect a touch, it is necessary to adjust the sensitivity of the touch panel. Adjusting the sensitivity of the touch panel means adjusting the threshold value of the amount of change in capacitance between the surface of the acrylic plate and the electrode to determine the presence or absence of a touch by the user. If the sensitivity of the touch panel is too high, or if the sensitivity of the touch panel is too low, false detection and non-detection on the touch panel are likely to occur, resulting in poor usability of the touch panel.

For example, in a portable terminal having a touch panel described in Patent Document 1, a low sensitivity region is set for the peripheral portion of the touch panel, and the sensitivity of the low sensitivity region is set to the sensitivity according to the operation of the sensitivity input unit. There is.

JP, 2013-89212, A

However, in the prior art, when the user touches the surface side of the acrylic plate, the user can not grasp how much the change amount of the capacitance between the surface of the acrylic plate and the electrode is . Therefore, the user needs to perform trial and error on the touch and the adjustment of the sensitivity in order to make the touch panel have the optimum sensitivity, and there is a problem that the user can not easily adjust the sensitivity of the touch panel. The

This invention is made in view of the above, Comprising: It aims at obtaining the display apparatus with a touch panel which a user can perform adjustment of the sensitivity of a touch panel easily.

In order to solve the problems described above and to achieve the object, the display device with a touch panel according to the present invention includes a projection-type capacitive touch panel. The display device with a touch panel includes an operation determination unit that determines whether or not the button unit of the touch panel is operated based on the amount of change in capacitance. The display device with a touch panel includes a display control unit that lights the light emitting unit corresponding to the operated button unit according to the amount of change in capacitance when the operation determining unit determines that the button unit is operated.

The display device with a touch panel according to the present invention has an effect that the user can easily adjust the sensitivity of the touch panel.

The perspective view which shows an example of the indoor unit of an air conditioner provided with the operation panel which is a display apparatus with a touch panel concerning embodiment of this invention A diagram showing an example of the appearance of the operation panel shown in FIG. A schematic cross-sectional view of the touch panel taken along line III-III in FIG. 2 Block diagram showing an example of a functional configuration of the operation panel shown in FIG. 1 The figure which shows an example of the hardware constitutions of the operation panel shown in FIG. Flow chart of touch sensitivity adjustment processing performed by the operation panel control unit of the operation panel in FIG. 4

Hereinafter, a display device with a touch panel according to an embodiment of the present invention will be described in detail based on the drawings. The present invention is not limited by the embodiment.

Embodiment.
First, an indoor unit of an air conditioner provided with an operation panel which is a display device with a touch panel according to an embodiment of the present invention will be described. FIG. 1 is a perspective view showing an example of an indoor unit of an air conditioner provided with an operation panel which is a display device with a touch panel according to an embodiment of the present invention.

In the indoor unit 1 of the air conditioner shown in FIG. 1, an operation panel 2, an outlet 3 and an inlet 4 are provided on the front surface. The operation panel 2 is an example of a display device with a touch panel. The indoor unit 1 and the outdoor unit of the air conditioner (not shown) are connected by an electric wiring 5 and also connected by a refrigerant pipe 6. The indoor unit 1 has a fan (not shown) for generating wind, a flap (not shown) for controlling the wind direction, and sensors (not shown) such as a thermistor for measuring a room temperature.

In the present embodiment, the device provided with the operation panel 2 is the indoor unit 1 of the air conditioner, but the device provided with the operation panel 2 is not limited to the indoor unit 1.

FIG. 2 is a view showing an example of the appearance of the operation panel shown in FIG.

The operation panel 2 shown in FIG. 2 has a state display unit 7 that displays the operating state of the indoor unit 1 and the like using a state display LED (Light Emitting Diode). For example, the state display unit 7 displays the indoor temperature, the set temperature, and the like using the 7-segment display LED 8. The operation panel 2 has a touch panel 9. On the touch panel 9,

touch buttons

10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i and 10j (hereinafter, each of these may be simply referred to as "touch button 10") are displayed. There is. For example, a picture of the touch button 10 is drawn on the touch panel 9. The touch button 10 is an example of a button unit. The touch panel 9 has

touch button LEDs

11a, 11b, 11c, 11e, 11f, 11g, 11h, 11i, 11j (hereinafter, each of these may be simply referred to as "touch button LED 11"). The touch button LED 11 is an example of a light emitting unit.

The touch button 10a is associated with the touch button LED 11a. Similarly, touch button 10b is for touch button LED 11b, touch button 10c is for touch button LED 11c, touch button 10d is for touch button LED 11d, touch button 10e is for touch button LED 11e, and touch button 10f is for touch button The LED 11 f, the touch button 10 g correspond to the touch button LED 11 g, the touch button 10 h corresponds to the touch button LED 11 h, the touch button 10 i corresponds to the touch button LED 11 i, and the touch button 10 j corresponds to the touch button LED 11 j.

The touch button 10a is, for example, a touch button for turning on (ON) or off (off) the air conditioner. The touch button 10b is, for example, a touch button for changing the operation mode of the air conditioner. The touch button 10 c is, for example, a touch button for raising the set temperature. The touch button 10 c is also, for example, a touch button for increasing the sensitivity of the touch panel 9. The touch button 10d is, for example, a touch button for lowering the set temperature. The touch button 10 d is also, for example, a touch button for reducing the sensitivity of the touch panel 9. The touch button 10 j is, for example, a touch button for shifting the mode of the operation panel 2.

FIG. 3 is a schematic cross-sectional view of the touch panel taken along line III-III in FIG.

The touch panel 9 shown in FIG. 3 has, for example, an acrylic plate 12 and LED 11 for touch button and an electrode 13 provided on the back surface 12 b side of the acrylic plate 12. The touch button 10 is displayed, for example, in the area of the front surface 12a corresponding to the area of the back surface 12b on which the electrode 13 of the acrylic plate 12 is provided. For example, a picture of the touch button 10 is drawn in the area of the front surface 12a corresponding to the area of the back surface 12b where the electrode 13 of the acrylic plate 12 is provided.

The touch panel 9 is a projected capacitive touch panel. In the touch panel 9, the user of the electrostatic capacitance changes the electrostatic capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13 by touching the surface 12 a side of the acrylic plate 12. Detect touch by. Specifically, in the touch panel 9, the value of the amount of change in capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13 when the user with the capacitance touches the surface 12 a side of the acrylic plate 12. Is a value equal to or greater than the touch detection threshold, the touch by the user is detected. The touch detection threshold is a threshold for determining the presence or absence of a touch by the user, and is a threshold of the amount of change in capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13. The touch detection threshold is an example of a setting value.

When the touch detection threshold is a small value, the sensitivity of the touch panel 9 is increased. When the touch detection threshold is a large value, the sensitivity of the touch panel 9 is lowered. The user adjusts the touch detection threshold value to adjust the sensitivity of the touch panel 9.

In the present embodiment, the ratio of the lighting period in a certain period when the touch button LED 11 is blinking is made to blink the touch button LED 11 so that the user recognizes that the touch button LED 11 is turned on. By adjusting, the degree of brightness of the touch button LED 11 recognized by the user can be adjusted. In the present embodiment, as an example of a method of changing the brightness at the time of lighting, the ratio of the lighting time to the light-off time is changed and blinked, that is, the brightness of lighting is changed by PWM (Pulse Width Modulation) control. Methods can be used. In the present embodiment, the blinking for adjusting the brightness, which is not recognized as blinking by the user, is also referred to as lighting. In the present embodiment, in addition to the blinking for adjusting the brightness, there may be used blinking which can be recognized as blinking by the user.

Next, the functional configuration of the operation panel in FIG. 1 will be described. FIG. 4 is a block diagram showing an example of a functional configuration of the operation panel shown in FIG.

The operation panel 2 shown in FIG. 4 includes an input / output unit 21, an operation panel control unit 22, and a storage unit 23. Input / output unit 21 includes state display unit 7 and touch panel 9. Operation panel control unit 22 controls the overall operation of operation panel 2. The storage unit 23 stores information. The operation panel control unit 22 includes an operation determination unit 24, a display control unit 25, and a setting change unit 26.

The operation determination unit 24 determines whether the mode transition operation of the operation panel 2 has been performed. The operation determination unit 24 determines whether the touch button 10 illustrated in FIG. 2 has been operated. The operation determination unit 24 determines whether the number of the operated touch button 10 is one. The operation determination unit 24 determines whether the operated touch button 10 is the touch button 10 for increasing or decreasing the sensitivity of the touch panel 9. The operation determination unit 24 determines whether the operation of the touch button 10 has ended.

The display control unit 25 displays the setting of the sensitivity of the touch panel 9 at present or after the change using the 7-segment display LED 8, for example. The display control unit 25 controls lighting and extinguishing of the touch button LED 11. The display control unit 25 turns on the touch button LED 11 corresponding to the operated touch button 10 at a brightness according to the amount of change in capacitance. The display control unit 25 turns on the touch button LED 11 corresponding to the touch button 10 which has not been operated, at the brightness according to the predetermined recommended value of the change amount of the capacitance. The display control unit 25 lights or blinks all the touch button LEDs 11 corresponding to all the operated touch buttons 10.

The setting change unit 26 changes the setting of the sensitivity of the touch panel 9.

Next, the hardware configuration of the operation panel in FIG. 1 will be described. FIG. 5 is a diagram showing an example of the hardware configuration of the operation panel shown in FIG. The operation panel 2 includes a control circuit 30 which is hardware that implements part of the input / output unit 21, the operation panel control unit 22, and the storage unit 23.

Control circuit 30 includes an input / output interface circuit 31 including an input circuit to which information from the outside of control circuit 30 is input and an output circuit for outputting information to the outside of control circuit 30, a processor 32, and a memory 33. . The input / output interface circuit 31 sends information received from the outside to the memory 33. The memory 33 stores the information received from the input / output interface circuit 31. The memory 33 also stores a computer program. The processor 32 reads a computer program stored in the memory 33 and performs arithmetic processing based on the information stored in the memory 33. Operation result information indicating the operation result by the processor 32 is sent to the memory 33. The input / output interface circuit 31 sends the information stored in the memory 33 to the outside.

The input / output interface circuit 31 implements a part of the input / output unit 21. The processor 32 implements the operation panel control unit 22. The memory 33 implements the storage unit 23.

Next, touch sensitivity adjustment processing performed by the operation panel control unit of the operation panel in FIG. 4 will be described. FIG. 6 is a flowchart of the touch sensitivity adjustment process performed by the operation panel control unit of the operation panel in FIG. The mode of the operation panel 2 includes at least a normal mode and a touch sensitivity adjustment mode for adjusting the sensitivity of the touch panel 9.

In step S101, first, the operation determination unit 24 of the operation panel control unit 22 determines whether a transition operation to the touch sensitivity adjustment mode for adjusting the sensitivity of the touch panel 9 has been performed. The transition operation to the touch sensitivity adjustment mode is, for example, an operation in which the user touches the touch button 10 j in FIG. 2 for three seconds.

As a result of the determination in step S101, when the transition operation to the touch sensitivity adjustment mode is not performed (No in step S101), the process returns to the process of step S101.

As a result of the determination in step S101, when a transition operation to the touch sensitivity adjustment mode is performed (Yes in step S101), operation panel control unit 22 transitions the mode of operation panel 2 to the touch sensitivity adjustment mode ( Step S102).

Next, the display control unit 25 of the operation panel control unit 22 displays the setting of the sensitivity of the touch panel 9 at present or after the change using the 7-segment display LED 8 (step S103). For example, when the sensitivity of touch panel 9 can be set to five levels, display control unit 25 of operation panel control unit 22 sets the current sensitivity of touch panel 9, that is, setting “1”, setting “2”, The display of setting “3”, setting “4” or setting “5” is performed using the 7-segment display LED 8. The setting “1”, the setting “2”, the setting “3”, the setting “4” and the setting “5” indicate the stages of sensitivity. For example, the 7-segment display LED 8 has a number "1" corresponding to setting "1", a number "2" corresponding to setting "2", a number "3" corresponding to setting "3", and a setting "4". And the number "5" corresponding to the setting "5". In order to be able to set the sensitivity of the touch panel 9 to five levels, it is necessary to prepare five touch detection thresholds. The sensitivity of the touch panel 9 is not limited to being settable to five levels, and may be set to two levels, three levels or four levels, or may be set to six or more levels.

Next, the operation determination unit 24 of the operation panel control unit 22 determines whether the touch button 10 has been operated (step S104). For example, the operation determination unit 24 of the operation panel control unit 22 determines the capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13 when the user having the capacitance touches the surface 12 a side of the acrylic plate 12. It is determined that the touch button 10 is operated when the value of the change amount of is a value equal to or greater than the touch detection threshold value.

As a result of the determination in step S104, when the touch button 10 is not operated (No in step S104), the process returns to the process of step S104.

As a result of the determination in step S104, when the touch button 10 is operated (Yes in step S104), the operation determination unit 24 of the operation panel control unit 22 determines whether the number of the operated touch button 10 is one or not. Is determined (step S105). In the present embodiment, the operation determination unit 24 includes the touch buttons 10 and the touch buttons 10 for all the touch buttons 10, that is, the

touch buttons

10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, and 10j. The value of the amount of change in capacitance between the electrodes 13 corresponding to 10 is monitored separately. Then, the operation determination unit 24 detects that the value of the capacitance change amount is a touch value for all the touch buttons 10, that is, the

touch buttons

10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, and 10j. It is individually judged whether it is a value more than a threshold value. In this manner, the operation determination unit 24 determines the operated touch button 10 and determines whether or not the operated touch button 10 is one.

As a result of the determination in step S105, when the operated touch button 10 is one (Yes in step S105), the operation determination unit 24 of the operation panel control unit 22 determines that the operated touch button 10 is the operation panel 2 It is determined whether or not the touch button 10 is for mode transition (step S106). For example, the operation determination unit 24 of the operation panel control unit 22 determines whether the operated touch button 10 is the touch button 10 j for mode transition of the operation panel 2 in FIG. 2.

As a result of the determination in step S106, when the operated touch button 10 is not the touch button 10j for mode transition of the operation panel 2 (No in step S106), the operation determination unit 24 of the operation panel control unit 22 performs the operation It is determined whether or not the touch button 10 thus processed is the touch button 10 for increasing or decreasing the sensitivity of the touch panel 9 (step S107). For example, the operation determination unit 24 of the operation panel control unit 22 determines whether the operated touch button 10 is the touch button 10 c for increasing the sensitivity of the touch panel 9 in FIG. 2 or the touch button 10 d for decreasing the sensitivity. Determine.

As a result of the determination in step S107, when the operated touch button 10 is not the touch button 10 for increasing or decreasing the sensitivity of the touch panel 9 (No in step S107), the display control unit 25 of the operation panel control unit 22. Makes the LED 11 for the touch button corresponding to the operated touch button 10 light with the brightness according to the variation of the capacitance (step S108). For example, when the operated touch button 10 is the touch button 10e, the display control unit 25 of the operation panel control unit 22 converts the touch button LED 11e corresponding to the operated touch button 10e into the amount of change in capacitance. It lights up according to the brightness. For example, when the change amount of the capacitance is a large value, the display control unit 25 of the operation panel control unit 22 causes the touch button LED 11e to light up the degree of brightness, that is, brightly. For example, when the change amount of the capacitance is a small value, the display control unit 25 of the operation panel control unit 22 lights the touch button LED 11e with a small degree of brightness, that is, dark.

Next, the display control unit 25 of the operation panel control unit 22 causes the LED 11 for the touch button corresponding to the touch button 10 that has not been operated to light at the brightness according to the predetermined recommended value of the change amount of the capacitance. (Step S109). The predetermined recommended value of the amount of change in capacitance corresponds to the reactivity recommended on the touch panel 9. When the difference between the capacitance change amount value and the touch detection threshold value is a small value, the reactivity is small, and when the difference is a large value, the reactivity is large. The degree of response indicates the degree to which the value of the capacitance change amount deviates from the touch detection threshold. When the sensitivity of the touch panel 9 becomes high, the touch detection threshold value becomes a small value, and the reactivity becomes large. When the sensitivity of the touch panel 9 becomes low, the touch detection threshold value becomes a large value, and the reactivity becomes small. For example, when the operated touch button 10 is the touch button 10 e, the display control unit 25 of the operation panel control unit 22 changes the capacitance of the touch button LED 11 f corresponding to the touch button 10 f not operated. Turn on the brightness according to the preset recommended value of. The display control unit 25 of the operation panel control unit 22 causes all the touch button LEDs 11 corresponding to all the touch buttons 10 not operated to have brightness according to the predetermined recommended value of the change amount of the capacitance. You may make it light.

As a result of the determination in step S105, when the operated touch button 10 is not one, that is, when the operated touch button 10 is two or more, or the user has touched only one touch button 10. If there are two or more touch buttons 10 for which the operation determination has been made (No in step S105), the display control unit 25 of the operation panel control unit 22 performs all the touches that have been operated or the operation determination has been made. All touch button LEDs 11 respectively corresponding to the button 10 are blinked (step S110). In step S110, the display control unit 25 of the operation panel control unit 22 may turn on all the touch button LEDs 11 corresponding to all the operated or operation determined touch buttons 10.

After step S109 or step S110, the operation determination unit 24 of the operation panel control unit 22 determines whether the operation of the touch button 10 has ended (step S111). For example, when the value of the amount of change in capacitance between surface 12 a of acrylic plate 12 and electrode 13 is less than the touch detection threshold value, operation determination unit 24 of operation panel control unit 22 determines that the touch button It is determined that the operation of 10 is completed.

As a result of the determination in step S111, when the operation of the touch button 10 is not completed (No in step S111), the process returns to the process of step S111.

As a result of the determination in step S111, when the operation of the touch button 10 is finished (Yes in step S111), the display control unit 25 of the operation panel control unit 22 turns off the touch button LED 11 (step S112) It returns to the process of step S103.

When it is determined in step S107 that the operated touch button 10 is the touch button 10 for increasing or decreasing the sensitivity of the touch panel 9 (Yes in step S107), the operation determination unit of the operation panel control unit 22 24 determines whether the operated touch button 10 is the touch button 10 for increasing the sensitivity of the touch panel 9 (step S113).

As a result of the determination in step S113, when the operated touch button 10 is the touch button 10 for increasing the sensitivity of the touch panel 9 (Yes in step S113), the setting change unit 26 of the operation panel control unit 22 The setting of the sensitivity of the touch panel 9 is increased by one, that is, one step (step S114), and the process returns to the process of step S103. Raising the setting of the sensitivity of the touch panel 9 by one level means changing the touch detection threshold value to a value smaller than the current value.

As a result of the determination in step S113, when the operated touch button 10 is not the touch button 10 for increasing the sensitivity of the touch panel 9, that is, the touch button 10 for decreasing the sensitivity of the operated touch button 10. If it is (No at step S113), the setting change unit 26 of the operation panel control unit 22 lowers the setting of the sensitivity of the touch panel 9 by one, that is, one step (step S115), and returns to the process of step S103. Lowering the setting of the sensitivity of the touch panel 9 by one level means changing the touch detection threshold value to a value larger than the current value.

As a result of the determination in step S106, when the operated touch button 10 is the touch button 10 for mode transition of the operation panel 2 (Yes in step S106), the operation determination unit 24 of the operation panel control unit 22 It is determined whether the touch button 10 for mode transition of the operation panel 2 is touched for the first time (step S116). The first time is, for example, 3 seconds.

If it is determined in step S116 that the touch button 10 for mode transition of the operation panel 2 is not touched for the first time (No in step S116), the process returns to the process of step S103.

As a result of the determination in step S116, when the touch button 10 for mode transition of the operation panel 2 is touched for the first time (Yes in step S116), the operation panel control unit 22 operates the operation panel 2 The mode is switched to the normal mode (step S117), and the process is terminated.

According to the touch sensitivity adjustment process illustrated in FIG. 6, the display control unit 25 causes the touch button LED 11 corresponding to the operated touch button 10 to light in accordance with the amount of change in capacitance. Thus, when the user touches the surface 12 a side of the acrylic plate 12, the user can grasp how much the change amount of the capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13 is. it can. For example, when the touch button LED 11e is turned off, the user can recognize that the sensitivity of the touch panel 9 is low, and can adjust the sensitivity of the touch panel 9 so that the sensitivity of the touch panel 9 becomes high. Thereby, the user can easily adjust the sensitivity of the touch panel 9.

According to the touch sensitivity adjustment process shown in FIG. 6, the display control unit 25 causes the touch button LED 11 corresponding to the operated touch button 10 to be lit with brightness according to the amount of change in capacitance. Thereby, when the user touches the surface 12 a side of the acrylic plate 12, the amount of change in capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13 is what extent, and the presence or absence of the touch by the user is determined The user can grasp how much difference exists in the amount of change in capacitance between the surface 12 a of the acrylic plate 12 and the electrode 13. For example, when the change amount of the capacitance is a large value, the display control unit 25 causes the touch button LED 11e to light up with a high degree of brightness, that is, when the change amount of the capacitance is a small value. Makes the touch button LED 11e light with a small degree of brightness, that is, dark. In this case, the user can recognize that the sensitivity of the touch panel 9 is high when the touch button LED 11e is lit brightly, and adjust the sensitivity of the touch panel 9 so that the sensitivity of the touch panel 9 becomes low. it can. The user can also recognize that the sensitivity of the touch panel 9 is low when the touch button LED 11 e is darkly lit, and can adjust the sensitivity of the touch panel 9 so that the sensitivity of the touch panel 9 becomes high. . Thereby, the user can easily adjust the sensitivity of the touch panel 9.

According to the touch sensitivity adjustment process shown in FIG. 6, the display control unit 25 brightens the touch button LED 11 corresponding to the touch button 10 not operated according to the predetermined recommended value of the change amount of the capacitance. Lights up. Thereby, the user compares the brightness of the touch button LED 11 corresponding to the operated touch button 10 with the brightness of the touch button LED 11 corresponding to the non-operated touch button 10, whereby the current touch panel 9 is obtained. The difference between the degree of reactivity and the degree of reactivity recommended on the touch panel 9 can be grasped. Thereby, the user can adjust the sensitivity of the touch panel 9 more easily.

According to the touch sensitivity adjustment process shown in FIG. 6, when there are two or more touch buttons 10 that have been operated or determined to be operated, the display control unit 25 sets all the operated touch buttons 10 respectively. All corresponding touch button LEDs 11 are lit or blinked. When the operation determination of two or more touch buttons 10 is performed despite the fact that the user has touched only one

touch button

10, 2 corresponding to the two or more touch buttons 10 for which the operation determination is performed respectively One or more touch button LEDs 11 light or blink. Thereby, the user can grasp that the operation determination of the two or more touch buttons 10 is performed despite the fact that only one touch button 10 is touched, and grasps that the current sensitivity of the touch panel 9 is high. be able to. Thereby, the user can adjust the sensitivity of the touch panel 9 more easily.

According to the touch sensitivity adjustment process shown in FIG. 6, the display control unit 25 displays the setting of the sensitivity of the touch panel 9 at present or after the change. Thereby, the user can grasp the setting of the sensitivity of the touch panel 9 at present or after the change.

In the present embodiment, the touch button 10 j for mode transition of the operation panel 2, the touch button 10 c for increasing the sensitivity of the touch panel 9, and the touch button 10 d for decreasing the sensitivity of the touch panel 9 In order to avoid the inoperability of 10, it is preferable that the sensitivity of the touch buttons 10 on the touch panel 9 be set high, and the setting be made unchangeable. In this case, the sensitivity of the touch buttons 10 on the touch panel 9 can not be adjusted. Therefore, it is preferable that these touch buttons 10 have the function of the touch buttons 10 that are used less frequently.

The configuration shown in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and one of the configurations is possible within the scope of the present invention. It is also possible to omit and change parts.

Reference Signs List 1 indoor unit, 2 operation panel, 3 outlet, 4 suction port, 5 electric wiring, 6 refrigerant piping, 7 state display unit, 8 7 segment display LED, 9 touch panel, 10, 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j Touch button, 11, 11a, 11b, 11c, 11d, 11e, 11f, 11g, 11i, 11j LED for touch button, 12 acrylic plate, 12a surface, 12b back surface, 13 electrodes , 21 input / output unit, 22 operation panel control unit, 23 storage unit, 24 operation determination unit, 25 display control unit, 26 setting change unit, 30 control circuit, 31 input / output interface circuit, 32 processor, 33 memory.

Claims

A display device with a touch panel comprising a projected capacitive touch panel, comprising:
An operation determination unit that determines whether the button unit of the touch panel has been operated based on the amount of change in capacitance;
Providing a display control unit for lighting a light emitting unit corresponding to the operated button unit according to the amount of change of the capacitance when the operation determining unit determines that the button unit is operated; Display device with touch panel.
The display device with a touch panel according to claim 1, wherein the display control unit causes the light emitting unit to light up at a brightness according to a change amount of the capacitance.
The operation determination unit determines that the button unit has been operated when the value of the amount of change of the capacitance is equal to or greater than a currently set value. The display device with a touch panel according to 2.
The display device with a touch panel according to claim 3, further comprising a setting change unit configured to change the setting value.
When the operation control unit determines that the button unit has been operated, the display control unit is configured to change the amount of change in capacitance of the light emitting unit other than the light emitting unit corresponding to the operated button unit. The display device with a touch panel according to any one of claims 2 to 4, wherein the display device is lighted at a brightness according to a predetermined recommended value.
The operation determination unit determines whether or not a plurality of the button units have been operated based on the amount of change in capacitance.
The display control unit causes the plurality of light emitting units respectively corresponding to the plurality of operated button units to light up or blink when the operation determining unit determines that the plurality of button units are operated. The display device with a touch panel according to any one of claims 1 to 5, characterized in that: