JPH11159847A - Liquid crystal display unit for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display on a liquid crystal with illuminance suitable for a using environment by changing a lighting pattern for illuminating a liquid crystal unit for displaying an operating mode or an operating condition of an air conditioner. SOLUTION: In order to make illuminance of a liquid crystal unit for displaying an operation mode or an operating condition of an air conditioner adaptable to a use environment, 3 lighting patterns are provided to allow the lighting patterns to be changed according to the use environment. Further, the latest lighting pattern is caused to be stored in a memory so as to eliminate re-setting of the lighting patterns even when a power supply is shut off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for lighting a liquid crystal display of an air conditioner.

[0002]

2. Description of the Related Art In some cases, the illuminance of a liquid crystal display has not been adapted to the use environment. Further, even if the lighting illuminance of the liquid crystal display can be adjusted, fine settings are required, and the adjusted illuminance is not stored.

[0003]

However, in such a conventional lighting method, when the user wants to change the lighting illuminance according to the use environment, it is necessary to make fine adjustments, and the adjusted illuminance is not stored. However, it was necessary to reset the illuminance when the power was turned off, and fine adjustment was required to make the setting.

According to the present invention, in a lighting method of a liquid crystal display device of an air conditioner, a lighting pattern can be set, the lighting pattern can be switched by a simple operation, and the lighting pattern can be reset even when the power is turned off. The purpose is to make it unnecessary.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides three lighting patterns for adapting the illuminance of a liquid crystal display device for displaying an operation mode or an operation state of an air conditioner to a use environment. It is provided so that the lighting pattern can be changed according to the use environment.

Further, in order to eliminate the necessity of resetting the lighting pattern even when the power is turned off, the latest lighting pattern is stored in a memory.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The first aspect of the present invention is to switch a lighting pattern of illumination of a liquid crystal display unit for displaying an operation mode or an operation state of an air conditioner. According to this configuration, the lighting pattern of the illumination of the liquid crystal display unit can be selected according to the environment in which it is used.

According to a second aspect of the present invention, a lighting pattern of illumination of the liquid crystal display section is stored in a memory. According to this configuration, it is not necessary to reset the lighting pattern during the operation after the power is reset.

According to a third aspect of the present invention, an existing switch is used in the air conditioner to switch the lighting pattern of the illumination of the liquid crystal display unit. According to this configuration, the cost can be reduced without adding a new component for switching the lighting pattern.

According to a fourth aspect of the present invention, in order to switch the lighting pattern of the illumination of the liquid crystal display unit, the lighting pattern is switched by pressing an existing switch in the air conditioner for a predetermined time.

According to this configuration, it is possible to avoid confusing the original function of the existing switch.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 is a view showing the appearance of an air conditioner, and a liquid crystal display 1 is provided at a lower right position of the air conditioner. In addition, an air conditioner shall mean an indoor unit of an air conditioner unless otherwise specified.

Further, as shown in FIG. 2, the illuminating section 2 for illuminating the liquid crystal display section 1 has a structure in which LEDs 3 are mounted on the left and right.

As a result, the liquid crystal display unit 1 is turned on. The liquid crystal display unit 1 shown in FIG. 2 displays a liquid crystal display such as an operation mode and an operation state.

Further, as shown in FIG. 3, three lighting patterns of the liquid crystal display unit 1 are provided. Pattern 1 31 in FIG.
Switches from bright lighting to dark lighting.
Pattern 2 32 in FIG. 3 switches from bright lighting to off. Pattern 3 Reference numeral 33 in FIG. 3 is used to switch from the unlit state to the unlit state, that is, to keep the unlit state.

(Embodiment 2) FIG. 4 shows the liquid crystal display unit 1 of FIG.
FIG. 9 is a diagram showing memory storage of lighting patterns of
The lighting pattern memory storage processing will be described with reference to a flowchart.

(Step 41) The power of the air conditioner is turned on. (Step 42) The lighting pattern is read from the memory,
The liquid crystal display illuminates with the read lighting pattern.

(Step 43) The lighting pattern is switched. (Step 44) The current lighting pattern is written in the memory.

(Embodiment 3) FIG. 5 is a view showing the appearance of an air conditioner, and a liquid crystal display 1 is provided at a lower right position of the air conditioner. The switch 51 on the liquid crystal display unit 1 is a lighting pattern changeover switch. The switch 51 is an existing switch of the air conditioner, and is a switch for resetting a sign that is output when a filter of the air conditioner becomes dirty.

Therefore, the switch 51 has two functions of switching the lighting pattern and resetting the filter for cost reduction.
It realizes each of the three functions.

(Embodiment 4) FIG. 6 is a flowchart showing a process for determining whether to switch the lighting pattern or reset the filter when the lighting pattern switching and filter reset switch 51 in FIG. 5 is pressed.

As in the third embodiment, the lighting changeover switch 51 is an existing switch in the air conditioner, and is also a switch for resetting the filter. Therefore, it is necessary to determine whether the lighting switching is a filter reset. The processing at this time will be described with reference to the flowchart in FIG.

(Step S1) It is determined whether or not the lighting pattern switching and filter reset switch 51 has been pressed, and if it has been pressed, the flow proceeds to step S2. If not, do nothing.

(Step S2) It is determined whether or not 10 seconds have elapsed since the lighting pattern switching / filter reset switch 51 was pressed, and if 10 seconds have elapsed, step S3 is performed.
If it is less than 10 seconds, go to step S4.

(Step S3) The lighting pattern is switched. (Step S4) Filter reset processing is performed.

[0027]

As is apparent from the above embodiment, the invention according to claim 1 switches the lighting pattern of the illumination of the liquid crystal display for displaying the operation mode or operation state of the air conditioner. There is an effect that the illuminance according to the use environment can be selected.

According to the second aspect of the present invention, the lighting pattern of the illumination of the liquid crystal display unit is stored in the memory, and it is not necessary to reset the lighting pattern at the time of operation after resetting the power supply.

According to the third aspect of the present invention, an existing switch is used in the air conditioner to switch the lighting pattern of the illumination of the liquid crystal display, thereby achieving a cost reduction effect.

According to the fourth aspect of the present invention, an existing switch is used in the air conditioner to switch the illumination pattern of the liquid crystal display unit, but the lighting pattern can be switched by pressing the switch for a predetermined time. As a result, each function can be performed by one switch without being confused with the original function of the existing switch in the air conditioner, so that a cost reduction effect is achieved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an indoor unit of an air conditioner according to first to fourth embodiments of the present invention.

FIG. 2 is a configuration diagram of a liquid crystal display unit and a lighting unit according to the first to fourth embodiments of the present invention.

FIG. 3 is an explanatory diagram of a lighting pattern of a liquid crystal display unit according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating memory storage of a lighting pattern according to a second embodiment of the present invention;

FIG. 5 is a configuration diagram showing locations of lighting pattern changeover switches of a liquid crystal display unit in the third and fourth embodiments of the present invention.

FIG. 6 is a flowchart showing a method for determining whether to switch the lighting pattern of the liquid crystal display unit or reset the filter in the fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal display part 2 Illumination part 3 LED31 Lighting pattern 1 32 Lighting pattern 2 33 Lighting pattern 3 51 Lighting pattern switch

Continuing on the front page (72) Inventor Toshinari Baba 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Inventor Takehiko Nitta 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture, Japan Inside Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] An environment in which an indoor unit of an air conditioner is provided with a liquid crystal display unit for displaying an operation mode or an operation state of the air conditioner, and a lighting device for illuminating the liquid crystal display unit. A liquid crystal display device that can switch lighting patterns according to the lighting conditions. 2. The operating condition of the air conditioner according to claim 1, wherein the lighting pattern is stored in a memory in the liquid crystal display device, and when the air conditioner is operated after the power is reset, the lighting pattern need not be reset. LCD display. 3. The liquid crystal display device for an air conditioner according to claim 1, wherein the lighting pattern of the liquid crystal display device is switched by using an existing switch in the air conditioner. 4. The liquid crystal display device for an air conditioner according to claim 1, wherein the lighting pattern is switched by pressing an existing switch in the air conditioner for a predetermined time or more.