KR20110044434A - System and method for adjusting display of multimedia apparatus for vehicle - Google Patents

System and method for adjusting display of multimedia apparatus for vehicle Download PDF

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Publication number
KR20110044434A
KR20110044434A KR1020090101096A KR20090101096A KR20110044434A KR 20110044434 A KR20110044434 A KR 20110044434A KR 1020090101096 A KR1020090101096 A KR 1020090101096A KR 20090101096 A KR20090101096 A KR 20090101096A KR 20110044434 A KR20110044434 A KR 20110044434A
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KR
South Korea
Prior art keywords
brightness
display unit
amount
metering
vehicle
Prior art date
Application number
KR1020090101096A
Other languages
Korean (ko)
Inventor
이은용
Original Assignee
현대모비스 주식회사
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Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020090101096A priority Critical patent/KR20110044434A/en
Publication of KR20110044434A publication Critical patent/KR20110044434A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0238—Details making use of sensor-related data, e.g. for identification of sensor or optical parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE: A system and method for adjusting the display of a multimedia apparatus for a vehicle are provided to improve visibility of a display unit in a multimedia apparatus for a vehicle in consideration of the side light in a vehicle. CONSTITUTION: A side light sensing unit senses the side light of a display unit in a multimedia apparatus to output the input amount of the side light. A control unit(5) adjusts the luminance of the display unit based on the luminance value preset depending on the input amount of the side light. The control unit increases the luminance of the display unit as much as a value preset the proportion of the input amount of the side light to the luminance of the display unit if the proportion is over a specific value.

Description

Display control system and method of multimedia device for a vehicle {SYSTEM AND METHOD FOR ADJUSTING DISPLAY OF MULTIMEDIA APPARATUS FOR VEHICLE}

The present invention relates to a vehicle multimedia apparatus, and more particularly, to a display control system and method of a vehicle multimedia apparatus.

The vehicle is equipped with head lamps, tail lamps, emergency indicator lamps, key hole lighting and interior lighting. The in-vehicle driver's seat is provided with multimedia devices such as an audio device, a video device, and a navigation device. In general, a display unit of an in-vehicle multimedia device includes a liquid crystal display (LCD).

In general, in the daytime, the visibility of the LCD unit is not clearly seen due to the light inside and the outside of the vehicle. On the contrary, referring to FIG. 1, in the related art, the front light sensor is installed in front of the vehicle, and the controller 105 controls the daytime based on the amount of light measured by the front light sensor 101 to adjust the brightness of the multimedia device in the vehicle. Determining whether it is night or not, and if it is daytime, the LCD unit 107 is maintained at the maximum brightness regardless of whether the tail light switch 103 is turned on or off. The brightness of was adjusted according to the size of the external light amount.

However, the conventional vehicle multimedia apparatus does not consider the amount of interior lighting inside the vehicle, and only depends on the amount of external light measured by the front light sensor, so that when indoor lighting is turned on and metering is introduced into the vehicle at sunset, and the vehicle There is a problem in that visibility of the LCD unit is deteriorated because light scattering of the LCD surface due to light incident from the rear surface is not considered.

Disclosure of Invention The present invention provides a display control system and method for a vehicle multimedia apparatus for improving visibility of a display unit of a vehicle multimedia apparatus in consideration of metering in a vehicle.

According to an embodiment of the present invention, a display control system for a multimedia device for a vehicle may include a photometric detector configured to detect photometric incident light provided on at least one side of a display unit of the multimedia apparatus and output a photometric inflow amount, and according to the photometric inflow amount in advance. And a controller configured to adjust the brightness of the display unit based on the set brightness value.

When the control unit adjusts the brightness of the display unit based on the metering inflow rate, if the ratio of the metering inflow amount and the brightness of the display unit is equal to or greater than a predetermined value, the control unit increases the brightness of the display unit by a predetermined size according to the ratio. Even if it is possible to improve the visibility of the display unit.

The apparatus may further include a front light sensor that detects light from the outside of the vehicle and measures and outputs an external light amount, wherein the controller controls daytime or nighttime based on the external light amount when adjusting the brightness of the display unit based on the metering inflow amount. When the recognition is the daytime, by adding a predetermined amount to the preset increase amount to adjust the brightness of the display unit to increase the brightness of the display unit in the daytime than the nighttime to further improve the visibility of the display unit have.

In addition, when the controller recognizes the day, the display unit may increase the contrast by a certain amount, thereby increasing the contrast in the daytime than in the nighttime, thereby further improving the visibility of the display unit.

According to another embodiment of the present invention, a display adjustment method of a multimedia device for a vehicle may include: measuring a metering inflow by sensing metering incident on a display unit of the multimedia apparatus; And adjusting brightness of the display unit based on a preset brightness value according to the metering inflow amount.

By such a configuration, visibility may be improved by adjusting display states such as brightness and contrast of a vehicle multimedia apparatus in consideration of light metering and external brightness of the vehicle.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description, when there is a risk of unnecessarily obscuring the gist of the present invention, a detailed description of well-known functions or configurations will be omitted.

The present invention is equipped with a metering detection sensor for detecting the metering incident to the display unit (for example, liquid crystal display (LCD) unit) in the vehicle multimedia device, the metering inflow amount detected by the metering detection sensor and the brightness of the display unit of the multimedia device Compare and adjust the brightness or contrast of the LCD.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5.

2 is a diagram illustrating a state in which a photometric sensor 2 is installed in an LCD unit 7 of a vehicle multimedia apparatus, according to an exemplary embodiment. 3 is a block diagram illustrating a configuration of a display control system of a multimedia apparatus installed in a dashboard 20 in front of a driver's seat of a vehicle, according to an exemplary embodiment. As shown in FIG. 3, the display control system of the vehicle multimedia apparatus includes a front light sensor 1, an LCD light metering sensor 2, a tail light switch 3, a front light sensor 1 and an LCD light metering sensor 2. A control unit (for example, an ECU (Electric Control Unit) 5) and a storage unit 6 which control the LCD unit 7 of the multimedia apparatus by receiving the detected value from the control unit.

The front light sensor 1 is installed at the front of the vehicle to detect light from the outside of the vehicle to measure and output the amount of external light.

As shown in FIG. 2, the LCD metering sensor 2 is provided at both sides of the LCD unit 7 of the vehicle multimedia apparatus. When the metering reaches the LCD unit 7, the metering sensor 2 of the LCD unit 7 measures the metering inflow and outputs the metering inflow value.

The storage unit 6 stores the brightness and contrast setting values of the LCD unit 7 according to the metering inflow rate and the brightness ratio of the LCD unit. In addition, the storage unit 6 may store brightness and contrast setting values of the LCD unit 7 according to the metering inflow amount according to another embodiment.

The LCD unit 7 includes an LCD panel (not shown) and a backlight (not shown), an inductor (not shown) and a microcomputer (not shown) for supplying power to the LCD panel and the backlight. The microcomputer of the LCD unit 7 may provide the controller 5 with the brightness value or contrast value currently set at the request of the controller 5.

According to the present embodiment, the control unit 5 is configured to display the LCD unit (based on the brightness and contrast values of the LCD unit 7 according to the preset metering inflow amount and the brightness ratio of the LCD unit 7 from the LCD unit 7). A control signal for adjusting the brightness setting value of 7) or the setting value of contrast is output to the LCD unit 7. In addition, the controller 5 may output an adjustment signal for adjusting the brightness and contrast value of the LCD unit 7 to the LCD unit 7 in consideration of the metering inflow amount only.

In addition, the controller 5 determines the day or night based on the amount of external light output from the front optical sensor 1. In addition, according to another exemplary embodiment, the controller 5 may determine day or night according to the on / off of the tail light switch 3.

A method of controlling the brightness of a vehicle multimedia apparatus according to an embodiment is as follows.

4 is a flowchart illustrating a display adjusting method of a vehicle multimedia apparatus according to an exemplary embodiment. As shown in FIG. 4, the LCD metering sensor 2 measures and outputs the LCD metering inflow amount (S1). The controller 5 determines whether the ratio of the LCD metering inflow amount and the LCD brightness is above a predetermined value (S2). Increase the brightness of (7) (S3). Subsequently, when controlling the brightness of the LCD unit 7, the controller 5 recognizes whether it is day or night based on the amount of external light (S4). The controller 5 adjusts the brightness of the LCD unit 7 by adding a predetermined amount to the preset increase amount when the recognition result is detected as day, and increases the contrast by a predetermined amount (S5). 7) to maintain the brightness (S6).

On the other hand, the controller 5 maintains the brightness of the current LCD unit 7 if the ratio of the metering inflow amount and the LCD brightness is less than a predetermined value (S7).

A display adjustment method of a vehicle multimedia apparatus according to another embodiment will be described below. 5 is a flowchart illustrating a display adjusting method of a vehicle multimedia apparatus according to another exemplary embodiment. Referring to FIG. 5, the LCD metering sensor 2 measures and outputs an LCD metering inflow amount (S11). The control unit 5 compares the ratio of the LCD metering inflow amount and the LCD brightness (S12), and when the ratio of the metering inflow amount and the LCD brightness is more than a predetermined value, determines whether it is daytime or nighttime (S13), and in the case of nighttime, the LCD unit 7 ) Increase the brightness of about 20% (S14), increase the brightness of the LCD unit 7 by about 50% and increase the contrast by about 30% in the daytime (S15). The increase rate of the brightness or contrast of the LCD unit 7 described above is merely an example, and may be set to different values according to the ratio of the metering inflow and the LCD brightness.

On the other hand, the controller 5 maintains the brightness of the current LCD unit 7 when the ratio of the metering inflow amount and the LCD brightness is less than a predetermined value (S16).

By such a configuration, the visibility of the display unit can be improved by controlling the brightness and contrast of the display unit of the multimedia apparatus for a vehicle in consideration of the metering and the amount of external light flowing into the vehicle.

Such a method and apparatus of the present invention have been described with reference to the embodiments shown in the drawings for ease of understanding, but this is merely exemplary, and those skilled in the art may have various modifications and equivalent embodiments therefrom. I understand that it is possible. Therefore, the true technical protection scope of the present invention will be defined by the appended claims.

1 is a block diagram illustrating a configuration of an LCD brightness adjusting system of a conventional vehicle multimedia apparatus.

2 is a diagram illustrating a state in which a metering sensor is installed in an LCD unit of a vehicle multimedia apparatus according to an exemplary embodiment.

3 is a block diagram illustrating a configuration of a display control system of a multimedia device for a vehicle according to an exemplary embodiment.

4 is a flowchart illustrating a display adjusting method of a vehicle multimedia apparatus according to an exemplary embodiment.

5 is a flowchart illustrating a display adjusting method of a vehicle multimedia apparatus according to another exemplary embodiment.

* Explanation of symbols for the main parts of the drawings

1: Front light sensor 2: LCD metering sensor

3: taillight switch 5: control unit

6: storage unit 7: LCD unit

Claims (8)

A display control system of a multimedia device for a vehicle, A photometric detector configured to detect a photometric incident incident on at least one side of the display unit of the multimedia apparatus and output a photometric inflow amount; And a controller configured to adjust the brightness of the display unit based on a preset brightness value according to the metering inflow amount. The method of claim 1, The control unit increases the brightness of the display unit by a predetermined size according to the ratio when the ratio of the metering inflow amount and the brightness of the display unit is greater than or equal to a predetermined value when adjusting the brightness of the display unit based on the metering inflow amount. Display control system of the device. The method of claim 2, Further comprising a front light sensor for sensing the light from the outside of the vehicle to measure and output the amount of external light, The controller recognizes whether it is daytime or nighttime based on the external light amount when adjusting the brightness of the display unit based on the metering inflow amount, and when it is recognized as the daytime, adds a predetermined amount to the preset increase amount to adjust the brightness of the display unit. Display control system of a vehicle multimedia device. The method of claim 3, And the control unit increases the contrast of the display unit by a predetermined size when recognized as the day. As a display control method of a vehicle multimedia device, Measuring a metering inflow by sensing metering incident on a display unit of the multimedia apparatus; And adjusting the brightness of the display unit based on a preset brightness value according to the metering inflow amount. The method of claim 5, The adjusting of the brightness of the display unit based on the metering inflow amount may include increasing the brightness of the display unit by a predetermined size according to the ratio when the ratio of the metering inflow amount and the brightness of the display unit is greater than or equal to a predetermined value. Display control method of a vehicle multimedia device. The method of claim 6, Adjusting the brightness of the display unit based on the metering inflow, Detecting external light and measuring external light amount; Recognizing day or night based on the amount of external light; And increasing the brightness of the display unit by adding a predetermined size to the preset size when the day is recognized during the day. The method of claim 7, wherein And increasing the contrast of the display unit by a predetermined size when recognized as the day.
KR1020090101096A 2009-10-23 2009-10-23 System and method for adjusting display of multimedia apparatus for vehicle KR20110044434A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106183996A (en) * 2016-07-29 2016-12-07 北京新能源汽车股份有限公司 The control method of automobile and automobile
KR20160143366A (en) * 2015-06-05 2016-12-14 현대자동차주식회사 Device for controlling display brightness of vehicle
CN106218529A (en) * 2016-07-29 2016-12-14 北京新能源汽车股份有限公司 The control method of automobile and automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160143366A (en) * 2015-06-05 2016-12-14 현대자동차주식회사 Device for controlling display brightness of vehicle
CN106183996A (en) * 2016-07-29 2016-12-07 北京新能源汽车股份有限公司 The control method of automobile and automobile
CN106218529A (en) * 2016-07-29 2016-12-14 北京新能源汽车股份有限公司 The control method of automobile and automobile

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