JP3028361B2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device such as a CRT display device and a liquid crystal display device, and more particularly to a permission / prohibition function for adjusting a screen displayed on the display device and setting a function. Related.

[0002]

2. Description of the Related Art In recent display devices, various adjustment functions and setting functions have been released to users.

[0003] Contrast,
There are brightness, screen amplitude, position, distortion, color adjustment, input connector setting, etc., and the user can freely adjust and set according to his / her preference, purpose of use, use conditions, and the like.

[0004]

Such an adjustment / setting function is necessary to use the display device in an optimum state, but is used by a person who has never used the display device. In such a case, it may happen that the adjustment / setting function is used by mistake and brought into an inappropriate state.

An object of the present invention is to provide a function for permitting / prohibiting such an adjustment / setting function of a display device, and to maintain the use of the display device in an optimum state.

[0006]

According to the present invention, there is provided a key ( adjustment / setting means ) for performing an adjustment / setting function relating to a display device, in order to solve the above-mentioned problems and achieve the object.
A memory device for storing an adjustment / setting permission / prohibition flag indicating permission / prohibition of adjustment / setting by a key, and permission / prohibition of adjustment / setting based on the contents of the memory device by detecting an output from the key. a microcomputer for controlling the determined adjustment and setting operation or adjustment and setting prohibits display operation, and includes a display device for displaying that the adjusting and setting disabled state, the adjustment and setting enable / disable flag, the key
Can Rukoto is switched only by the power ON while pressing the. It is also possible to switch the adjustment / setting permission / prohibition flag for each item to be adjusted / set, and to select whether to set the adjustment / setting prohibition function.

[0007]

According to the present invention, when the user performs adjustment / setting relating to the display device by the adjusting / setting means,
The microcomputer determines the contents of permission or prohibition of the adjustment / setting stored in the memory device in advance, and adjusts / adjusts.
If the setting is permitted, the adjustment / setting operation is performed.If the setting / adjustment is prohibited, the display of the adjustment / setting prohibition is displayed on the display device, and the adjustment / setting operation is not performed.
It is possible to prevent the setting state from becoming inappropriate.

[0008]

【Example】

(Embodiment 1) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the display device of the present invention, and FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes adjustment / setting means (front keys and the like) for adjusting and setting a display device, 2 denotes a nonvolatile memory device, 3 denotes a microcomputer, and 4 denotes a display device (LEDs and the like). .

The operation of the display device having the above-described configuration and having the adjustment / setting prohibition function will be described with reference to FIG.

S200 is a state before the display device is used by the user, for example, at the time of shipment from a factory. Here, it is determined whether the adjustment / setting prohibition function is set in the nonvolatile memory device 2 shown in FIG. -Can be selected by setting means 1,
If it is set, it becomes a display device with an adjustment / setting prohibition function (S201), and if it is not set, it becomes a display device with a normal function (no adjustment / setting prohibition function) (S202).

When the adjustment / setting prohibition function is set, the non-volatile memory device 2 has an adjustment / setting permission / prohibition flag indicating that the current display device is in an adjustment / setting permission or prohibition state. In this embodiment, when the adjustment / setting means 1 is operated by turning on the power while operating the adjustment / setting means 1, the adjustment / setting permission / prohibition flag can be switched.
(S203).

If the operation of the adjustment / setting means 1 is performed when the power is turned on, the adjustment / setting permission / prohibition flag is switched (S204). If the operation of the adjustment / setting means 1 is not performed, the adjustment / setting permission / The prohibition flag remains at the previous setting (S20
Five).

At this time, if the adjustment / setting permission / prohibition flag is “prohibition” (Yes in S206), the display device (LED, etc.) 4
"Adjustment / setting prohibited" is displayed (S207). This display allows the user to know that the current state of the display device is in the adjustment / setting prohibited state.

When an input is made to the adjustment / setting means 1
(S211) If the adjustment / setting permission / prohibition flag is "permitted" (No in S208), the normal adjustment / setting operation is performed (S20).
9) In the case of "prohibition" (Yes in S208), "adjustment / setting prohibited" is displayed on the display device 4, so that the user does not perform the adjustment / setting operation by watching this display (S210).

As described above, according to this embodiment, for example,
If a user who has never used another display device before uses the display device, the display device can be used in the “adjustment / setting prohibited” state, and the adjustment / setting state is inappropriate. State is maintained.

(Embodiment 2) The configuration of the display device is the first
FIG. 3 is a flowchart showing the operation of the second embodiment of the present invention.

The operation will be described below with reference to FIG.

Steps S300 to S305 are the same as steps S200 to S205 in FIG. 2 of the first embodiment. The difference from the first embodiment is that no display is made even in the "adjustment / setting prohibited" state when the power is turned on, and there is an input from the adjustment / setting means 1 (S3
09) When the flag is prohibited (Yes in S306), the first
This is the point at which "setting prohibited" is displayed (S308). If the flag is not prohibited (No in S306), a normal adjustment / setting operation is performed (S307).

In the second embodiment, for example, "adjustment / setting prohibited" is displayed only when the adjustment / setting means 1 is input, for example, in a display device which performs adjustment / setting by an on-screen display system. It is suitable for a display device of an adjustment / setting system that is easy for the user to understand that the state is “adjustment / setting prohibited”. Needless to say, even if the display device is not an on-screen display type, it may be easy to understand by blinking an LED or the like, or the first embodiment may be used with an on-screen display type display device.

(Embodiment 3) The third embodiment of the present invention is an extension of the second embodiment, and there are various adjustment / setting items. Thus, adjustment and setting of only some of them can be prohibited, and the selection can be made.

For example, when the adjustment / setting items are contrast,
Brightness, amplitude, position, color adjustment, etc.
If it is desired to prohibit adjustment and setting, but only the contrast and brightness need to be changed depending on the use conditions, etc., only those items can be adjusted and set.

That is, there are two types of states in which adjustment and setting are prohibited, and the state display is shown in FIG. here,
(A) is a key of the adjustment / setting means 1, (B) is a state of the display device, and (C) is an adjustment / setting permission / prohibition item.

First, a flag switching operation when the power is turned on.
There are three types of (S303 in FIG. 3). For example, when the power is turned on while pressing the A key, the adjustment / setting is prohibited (1), the B key is prohibited from the adjustment / setting (2), and the C key is adjusted.・ Allow the setting (3). If nothing is done, keep the previous setting.

When the adjustment / setting is prohibited (1), all the adjustment items are prohibited. When adjustment / setting is prohibited (2), contrast / brightness adjustment / setting means 1
When there is an input of the normal adjustment / setting operation (S307)
"Otherwise, display" Adjustment / setting prohibited "
(S308) is performed.

Of course, in addition to the adjustment / setting prohibition (1) and (2), the number of types of states may be increased, and the items that can be permitted may be set by the user.

Further, it is also possible to set only the states of adjustment / setting prohibition (2) and adjustment / setting permission (3) at the time of shipment from the factory, and perform the operations as in the first and second embodiments. That is, adjustment / setting permission / prohibition of the adjustment / setting item other than the contrast and brightness can be switched.

[0029]

As described above, the display device of the present invention can be used for adjusting and adjusting the display device when, for example, a user who has never used another display device uses the display device. If the setting state is likely to be inappropriate, use the display device in the “adjustment / setting prohibited” state, so that the adjustment / setting state is maintained without becoming an inappropriate state. -It has a function to set items that are prohibited to be set, so that it can be used in an optimal state.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a display device of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 4 is a diagram illustrating a state in which adjustment and setting are prohibited according to a third embodiment of the present invention.

[Explanation of symbols]

1. Adjustment / setting means 2. Non-volatile memory device 3.
... microcomputer, 4 ... display device.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G09G 5/00, 1/00 H04N 5/64

Claims (3)

(57) [Claims] And 1. A key for setting adjustments and functions of the screen of the display device, a memory device for storing the setting and adjustment permission / prohibition flag indicating permission or prohibition of adjusting and setting by the key, from the key display for displaying a microcomputer for controlling the determined adjustment and setting operation or adjustment and setting prohibits display operation enabling or disabling of adjusting and setting the detected contents of the memory device to output, that is adjusted and set prohibition state equipped with a device, the adjustment and setting permission / prohibition flag display apparatus characterized by can Rukoto switched <br/> only by the power ON while pressing the key. 2. The method according to claim 1, wherein each of the items to be adjusted and set is adjusted.
Claim 1 Symbol placement of the display device, characterized in that it can switch the setting permission / prohibition flag. 3. The method according to claim 1, wherein the user can select whether or not to set an adjustment / setting prohibition function.
2 Symbol placement of display devices.