CN100445815C - Method for Improving the Display Effect of LCD Display under Sunlight on Mobile Devices - Google Patents

Abstract

The invention relates to a method for improving the display effect of an LCD display screen under sunlight on a mobile device, wherein the method includes the system performing an initialization operation, the system judging whether the user presses a specific button, the timer starts counting, and the timer starts counting. When the timing exceeds the timeout time preset by the system, adjust the brightness of the LCD display background light and clear the counter. Using this method of improving the display effect of the LCD display screen under the sun on the mobile device, because the function of enhancing the brightness of the LCD display screen background is achieved by pressing the specific key of the mobile phone for a long time, the brightness of the LCD backlight source under the sun is increased by a certain multiple, thereby achieving The purpose of increasing the brightness of the screen is to restore the backlight to normal and save power after long pressing again; at the same time, it has a certain degree of flexibility and increases the scope of application of mobile devices.

Description

Method for Improving the Display Effect of LCD Display under Sunlight on Mobile Devices

technical field

The invention relates to the field of mobile devices, in particular to the field of display of mobile devices, and specifically refers to a method for improving the display effect of an LCD display screen under sunlight on a mobile device.

Background technique

No matter what technology the current LCD uses, its working mode is the same. Because the liquid crystal does not emit light, the LCD screen must be displayed with the help of an external light source (active or passive). The new technology OLED currently invented will emit light by itself (not entering the mainstream). If the backlight of the LCD display is relatively weak, it is easy to be seen The sun is flooding, so in sunlight the image will not be visible. Therefore, the general LCD display effect is not good in sunlight.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings in the prior art, and provide a mobile device that can adjust the brightness of the LCD display background under the sun, is free and flexible, saves electric energy, and has a wide range of applications. The method to display the effect.

In order to achieve the above object, the method for improving the display effect of the LCD display screen under sunlight on the mobile device of the present invention is as follows:

The method for improving the display effect of an LCD display screen under sunlight on the mobile device includes an LCD display screen and a backlight brightness control device connected thereto, and its main feature is that the method includes the following steps:

(1) The system performs initialization operation;

(2) The system judges whether the user presses a specific key;

(3) If yes, then the timer starts counting;

(4) If the system judges that the user terminates the pressing operation of the specific button, then stop timing and reset the timer;

(5) If the timer count exceeds the timeout time preset by the system, adjust the brightness of the backlight of the LCD display screen, and then reset the timer to zero.

The LCD display background light brightness adjustment processing of the method for improving the display effect of the LCD display under sunlight on the mobile device includes the following steps:

(1) The system judges whether the brightness of the LCD display background light has been enhanced;

(2) If not, then the backlight brightness of the LCD display is increased by a certain multiple through the backlight brightness control device, and the brightness of the backlight is set to be enhanced;

(3) If yes, reduce the backlight brightness of the LCD display screen by a certain multiple through the backlight brightness control device, and set the backlight brightness to be restored.

In the method for improving the display effect of the LCD display screen under sunlight on the mobile device, both the increase factor and the decrease factor of the brightness of the backlight are set to 1 time.

The system preset timeout time of the method for improving the display effect of the LCD display screen under sunlight on the mobile device is 5 seconds.

The specific key of the method for improving the display effect of the LCD display screen under sunlight on the mobile device is the "#" key on the mobile device.

The method for improving the display effect of the LCD display screen under the sun on the mobile device of this invention is adopted. Since the function of enhancing the brightness of the LCD display screen background is achieved by long pressing a specific button of the mobile phone, the brightness of the LCD backlight source under the sun is increased by a certain factor. In this way, the purpose of increasing the brightness of the screen can be achieved, and the backlight can be restored to normal after a long press again, saving power; at the same time, it has certain flexibility and increases the applicable range of mobile devices.

Detailed ways

In order to understand the technical content of the present invention more clearly, first introduce the working principle of the LCD display:

The LCD device is a device that controls the projection intensity to identify images when the light emitted by the backlight passes through the polarizer and the liquid crystal cell. That is, the brightness of the LCD depends on the amount of light passing through the liquid crystal cell (the transmittance of the LCD screen) and the color filter CF (the transmittance of the CF) and the brightness of the backlight. Therefore, there are usually three ways to improve the brightness of LCD:

(1) Increase the brightness of the backlight

(2) Improve the aperture ratio of TFT pixels

(3) Improve the brightness of all materials

A sidelight light source using a light guide plate, assuming that the light efficiency of the light guide plate is 100%, it loses 40% in the light guide plate, 36% through the lower polarizer, 18% through the liquid crystal cell and 1% through surface reflection, backlight As an important accessory and source of brightness of LCD display, it is very important to improve the brightness of LCD display. Therefore, people try various ways to improve the brightness of LCD display from the aspect of backlight. First, from the perspective of light source, the number of lamp tubes can be increased to increase The power of the light source, but it will lead to a large power consumption, so the LCD display problem that has plagued people has not been well solved, and due to cost considerations, the improvement methods (2) and (3) are not enough. It has great practical value and significance.

The following examples will illustrate the method of the present invention in detail.

The method for improving the display effect of an LCD display screen under sunlight on the mobile device includes an LCD display screen and a backlight brightness control device connected thereto, wherein the method includes the following steps:

(1) The system performs initialization operation;

(2) The system judges whether the user presses a specific key, which may be the "#" key on the mobile device;

(3) If yes, then the timer starts counting;

(4) If the system judges that the user terminates the pressing operation of the specific button, then stop timing and clear the counter;

(5) If the timer timing exceeds the time-out time preset by the system, the time-out time is 5 seconds, then carry out the LCD display screen background light brightness adjustment process, and then the counter is cleared; the LCD display screen background light brightness adjustment process includes The following steps:

(a) The system judges whether the brightness of the LCD screen background light has been enhanced;

(b) If not, increase the backlight brightness of the LCD display screen by a certain multiple through the backlight brightness control device, and set the backlight brightness has been enhanced, and the backlight brightness increase multiple is 1 times;

(c) If yes, the backlight brightness of the LCD display screen is reduced by a certain factor through the backlight brightness control device, and the brightness of the backlight is set to be restored, and the reduction factor of the backlight brightness is 1 time.

When outdoors, because the backlight of the LCD display is relatively weak, it is easy to be flooded by sunlight. Therefore, under the sun, the LCD is usually dark when viewed by the naked eye, and the content of the image cannot be clearly seen at all. If a strong backlight is used at this time, It is equivalent to doubling the brightness of the LCD at this time, so that the screen content can be well displayed in the sunlight through the sunlight, but because the power consumption of the backlight is relatively large, and the battery capacity of the mobile phone is limited, and more importantly, , if the backlight is enhanced, taking FM198 as an example, the effect will turn white indoors or under the light, which is not conducive to seeing the screen clearly. How to save power and achieve the purpose of the best display, adding Power LCD function is a good way choose.

In the method of the present invention, a specific key can be selected to realize this function, for example, select the "#" key of FM198, long press the "#" key to double the brightness of the LCD backlight, and long press again to turn off this function, which is effective Solved the problem of how to see the LCD clearly under strong outdoor light.

The above-mentioned method for improving the display effect of the LCD display screen under the sun on the mobile device is adopted. Since the function of enhancing the brightness of the LCD display screen background is achieved by pressing a specific button of the mobile phone for a long time, the brightness of the LCD backlight source under the sun is increased by a certain multiple, thereby To achieve the purpose of increasing the brightness of the screen, the backlight can be restored to normal after another long press, saving power; at the same time, it has certain flexibility and increases the scope of application of mobile devices.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims (5)

1, a kind of method of improving LCD display screen display effect in sun for mobile devices comprises LCD display and is attached thereto the backlight luminance control apparatus that connects, and it is characterized in that described method may further comprise the steps:

(1) system carries out initialization operation;

(2) system judges whether the user presses down operation for specific keys;

(3) if then timer picks up counting;

(4) if system judges that the user stops operation under the pressing of this specific keys is then stopped timing, and with the timer zero clearing;

(5), then carry out LCD display bias light brightness regulation and handle, then with the timer zero clearing if the timer timing surpasses the time-out time of systemic presupposition.

2, the method for improving LCD display screen display effect in sun for mobile devices according to claim 1 is characterized in that, described LCD display bias light brightness regulation is handled and be may further comprise the steps:

(1) system judges whether this LCD display bias light brightness strengthens;

(2) if not, then by the backlight illumination raising certain multiple of backlight luminance control apparatus with LCD display, and the setting backlight illumination strengthens;

(3) if, and set backlight illumination and reduce then by the backlight illumination reduction certain multiple of backlight luminance control apparatus with LCD display.

3, the method for improving LCD display screen display effect in sun for mobile devices according to claim 2 is characterized in that, the raising multiple of described backlight illumination and reduction multiple all are set at 1 times.

According to the method for each described improving LCD display screen display effect in sun for mobile devices in the claim 1 to 3, it is characterized in that 4, the time-out time of described systemic presupposition was 5 seconds.

According to the method for each described improving LCD display screen display effect in sun for mobile devices in the claim 1 to 3, it is characterized in that 5, described specific keys is " # " key on the mobile device.