JPH056159A - Display device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a display device capable of flexibly changing the state of the screen according to the use environment and individual tastes of the user. In a display device in which the ambient brightness is detected by the detection means 1 and the screen state is automatically adjusted according to the detected ambient light state, the amount of ambient light and the adjustment values of the screen brightness, brightness, color tone, etc. Storage means 6 for storing the reference correlation, and means 5 for correcting the reference correlation stored in the storage means based on the amount of ambient light detected by the detection means 1 and an adjustment value input from the outside. , Means 6 for adjusting the screen state using the corrected correlation as a parameter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device which illuminates ambient light with a sensor and automatically adjusts a screen state based on information on the brightness of the ambient light.

[0002]

2. Description of the Related Art Conventionally, in a display device,
A sensor is attached to a part of the device, ambient light is collected by this sensor, and the screen brightness, brightness, color tone, etc. are determined based on the parameters set in advance according to the ambient light state, and the screen state is automatically determined. Some had an automatic screen adjustment function for automatic adjustment.

In such a display device, since the screen is automatically adjusted based on the preset parameters, only one or several kinds of adjustments can be performed.

[0004]

In the conventional display device, since the screen is automatically adjusted based on the preset parameters as described above, only one or several kinds of adjustments can be performed. However, considering the environment in which the display device is placed, the environment such as the position and presence of windows, the position and type of lighting, and the like are varied, and the set parameters are not always optimal. Therefore, there is a problem that the optimum adjustment is not always performed.

There is also a problem that personal preference cannot be reflected in the adjustment value that is automatically adjusted.

The present invention was devised to improve the above-mentioned drawbacks, and an object of the present invention is to provide a display device capable of flexibly changing the state of the screen according to the environment of use and individual preferences of the user. And

[0007]

In order to achieve the above object, the present invention provides a display device which detects the ambient brightness by a detection means and automatically adjusts the state of the screen according to the detected ambient light. Storage means for storing the correlation between the amount of light and the adjustment values such as screen brightness, brightness, and color tone, and the storage means based on the amount of ambient light detected by the detection means and an adjustment value input from the outside. It is characterized in that it is provided with a means for correcting the stored correlation and a means for adjusting the screen state using the corrected correlation as a parameter.

[0008]

According to the present invention, it is possible to change the parameter of the set adjustment value for automatic screen adjustment according to the user's request, and further input the adjustment value when the ambient light changes. The parameter of the adjustment value of the automatic adjustment of the screen can be brought close to the optimum one according to the preference of the user and the environment of the place of use.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the internal structure of a display device according to an embodiment of the present invention, and FIG. 2 is an external view of the display device shown in FIG.

This display device includes a light receiving element 1 for detecting ambient light, a screen adjusting device 2 for inputting adjustment values such as brightness, brightness and color tone of the screen, a cathode ray tube for displaying the screen, and the like. Of the display device 3 and the light receiving element 1 and the screen adjustment device 2 and the display device 3
2 is composed of a control device 4 for adjusting the data, a processing device 5 for processing the data and correcting the parameters, and a storage device 6 for storing the parameter of the adjustment value of the automatic screen adjustment as data.

Further, as shown in FIG. 2, a light receiving element 1 and a screen adjusting device 2 are provided below a screen 11 of the display device, and the screen adjusting device 2 is adapted to control the brightness, brightness and color tone of the screen. An adjustment value determination button 10 is provided.

Next, the screen adjusting operation of the present display device constructed as described above will be described with reference to the flow charts of FIGS.

Here, in the storage device 6, a parameter for automatic screen brightness adjustment determined by a reference correlation curve 20 showing the correlation between the brightness of the screen 11 and the amount of ambient light as shown by the broken line in FIG. Is stored in advance. With respect to the brightness and color tone of the screen, the parameters of the brightness and color tone of the screen determined by the similar reference correlation curve are stored.

When the user adjusts the brightness, brightness, color tone, etc. of the screen by the screen adjusting device 2 and decides and inputs the adjustment value by the decision button 4 (step 401), the ambient light is detected by the light receiving element 1. This is performed (step 402), and the data of the adjustment values of the brightness, brightness, color tone, etc. by the screen adjustment device 2 and the data of the ambient light quantity taken in from the light receiving element 2 are read into the processing device 5 through the control device 4 (step). 403). The processing device 5 that has received the data extracts the parameters of each adjustment value by the ambient light amount and the reference correlation curve 20 from the storage device 6, and based on the data sent from the control device 6, each adjustment value of the reference correlation curve 20. The parameter is corrected (step 404) and stored in the storage device 6 (step 405).

By repeating this several times at the time when the ambient light changes, the reference correlation curve 20 is corrected to a correlation curve 21 shown by a solid line in FIG. When the correction of the parameters is completed, the control device 4 adjusts the screen state of the display device 3 based on the corrected parameters stored in the storage device 6 (step 406), and changes the brightness, brightness, color tone, etc. of the screen. Let

Next, FIG. 5 shows an example of a parameter correction method for automatic screen adjustment. In this method, the ambient brightness is divided into several levels according to the amount of light, and parameters for each adjustment value are set for each level. At the time when the user determines the adjustment value by the screen adjusting device 2, it is checked which stage the surrounding light amount corresponds to, and each parameter at that stage is changed. In some cases, some modifications on both sides of the changed step are also slightly adjusted according to the changed value of the changed step. Although FIG. 5 shows the correlation between the luminance and the amount of light in the surroundings, the same applies to light and dark, color tone, and the like.

[0018]

As described above, according to the display device of the present invention, the screen is automatically adjusted by correcting the parameter based on the input adjustment value according to the preference of the user and the ambient brightness. , It becomes possible to flexibly change the state of the screen according to the use environment and individual tastes of the user. Therefore, even if the external brightness changes, it is possible to always obtain the optimum screen brightness, brightness, color tone, etc., that suits the user.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a configuration of a display device according to an exemplary embodiment of the present invention.

FIG. 2 is an external view of a display device according to an exemplary embodiment of the present invention.

FIG. 3 is a diagram showing a method of correcting a reference correlation curve showing a correlation between a screen brightness and a surrounding light amount according to the present invention.

FIG. 4 is a flowchart illustrating a screen adjustment operation of a display device according to an exemplary embodiment of the present invention.

FIG. 5 is a diagram showing another method of correcting the reference correlation curve showing the correlation between the screen brightness and the surrounding light amount.

[Explanation of symbols]

 1 ... Receiving element 2 ... Screen adjusting device 3 ... Display device 4 ... Control device 5 ... Processing device 6 ... Storage device 10 ... Adjustment value determination button 11 ... Screen 20 ………… Standard correlation curve 21 ………… Correction curve after correction

Claims (1)

Claims: 1. The ambient brightness is detected by a detection means,
In a display device that automatically adjusts the screen state according to the detected ambient light state, the amount of ambient light and the screen brightness,
Storage means for storing a reference correlation with adjustment values such as brightness and color tone, and a reference stored in the storage means based on the amount of ambient light detected by the detection means and an adjustment value input from the outside. And a means for adjusting the screen state using the corrected correlation as a parameter.