CN104217702A - Display device and brightness setting method thereof - Google Patents
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Abstract
Description
技术领域technical field
本发明涉及一种显示装置及其亮度设定方法，特别是涉及一种由使用者自行设定各个背光单元亮度的显示装置及其亮度设定方法。The present invention relates to a display device and its brightness setting method, in particular to a display device and its brightness setting method in which the brightness of each backlight unit is set by the user.
背景技术Background technique
一般显示器通常包含一控制模组、一电源模组及一背光模组。所述控制模组可通过其控制芯片对电源模组发出控制指令，令电源模组提供背光模组所需的电力，以调整显示器的画面亮度。但这种常见的显示器，其电源模组提供电力于背光模组的多个背光源(如发光二极管背光源或灯管背光源)时，是以平均供给电力的方式给电，也就是各个背光源接收的电力完全相同，因此会产生几种问题。A general display usually includes a control module, a power module and a backlight module. The control module can issue control commands to the power module through its control chip, so that the power module can provide the power required by the backlight module to adjust the screen brightness of the display. However, in this common display, when the power supply module provides power to multiple backlight sources of the backlight module (such as light-emitting diode backlight or lamp backlight), it supplies power in the form of an average power supply, that is, each backlight The sources receive exactly the same power, so several problems arise.
首先，背光模组的背光源理论上虽然是相同的规格，但实际上仍会有些微的差异，所以提供相同的电力于所述背光源，会让背光源之间的亮度有所差异，而导致显示器的亮度不均。First of all, although the backlight of the backlight module has the same specifications in theory, there are still some slight differences in practice, so providing the same power to the backlight will cause differences in brightness between the backlights, and Causes uneven brightness of the display.
其次，显示器的液晶模组的玻璃面板于各区域的厚度会有些微的差异，而造成各区域光穿透率的不同。若电源模组仅能供给固定且相同的电力于背光源，无法让使用者对显示器各区域的背光源进行调整，也会导致显示器亮度不均的问题。Secondly, the thickness of the glass panel of the liquid crystal module of the display will be slightly different in each area, resulting in a difference in light transmittance in each area. If the power module can only supply fixed and identical power to the backlight, the user cannot adjust the backlight of each area of the display, which will also lead to the problem of uneven brightness of the display.
再者，一般显示器虽可让使用者通过屏幕显示单元(on screendisplay，简称为OSD)的选单设定显示器的亮度，但是该亮度设定功能只能设定显示器的整体亮度，不能对显示器进行局部区域的亮度设定，而缺乏使用上的弹性。Furthermore, although the general display allows the user to set the brightness of the display through the menu of the on screen display (OSD), this brightness setting function can only set the overall brightness of the display, and cannot partially adjust the display. The brightness of the area is set, but lacks the flexibility of use.
发明内容Contents of the invention
本发明的目的在于提供一种让使用者能自行设定各背光单元亮度的显示装置。The purpose of the present invention is to provide a display device that allows users to set the brightness of each backlight unit by themselves.
本发明显示装置，包含一控制模组、一电源模组及一背光模组。该控制模组接收由一使用者指定的一设定指令，该设定指令是关于该显示装置的亮度设定。该一电源模组包括至少一电连接于该控制模组的配电单元及至少一电连接于该配电单元的供电单元，该配电单元接收由该控制模组发出且关于该设定指令的至少一控制讯号，并依据该控制讯号发出一配电讯号至该供电单元。该背光模组包括多个电连接于该供电单元的背光单元。The display device of the present invention includes a control module, a power supply module and a backlight module. The control module receives a setting instruction designated by a user, and the setting instruction is about brightness setting of the display device. The power supply module includes at least one power distribution unit electrically connected to the control module and at least one power supply unit electrically connected to the power distribution unit, and the power distribution unit receives the setting command issued by the control module at least one control signal, and send a power distribution signal to the power supply unit according to the control signal. The backlight module includes a plurality of backlight units electrically connected to the power supply unit.
其中，该供电单元依据关于各个背光单元的供电量的配电讯号，而分别提供所述背光单元所需的电力，使所述背光单元分别发出对应亮度的光线。Wherein, the power supply unit provides power required by the backlight units respectively according to the power distribution signal about the power supply amount of each backlight unit, so that the backlight units respectively emit light with corresponding brightness.
较佳地，该配电单元与该供电单元的数量各为多个且数量相互对应，每一配电单元各电连接一相异的供电单元，且所述供电单元分别电连接于至少一相异的背光单元；该控制模组分别发出一控制讯号至所述配电单元，所述配电单元分别依据其接收的控制讯号而发出一配电讯号至一对应的供电单元，所述供电单元分别依据其接收的配电讯号，而分别提供其对应的背光单元所需的电力。Preferably, the number of the power distribution unit and the power supply unit are multiple and correspond to each other, each power distribution unit is electrically connected to a different power supply unit, and the power supply units are respectively electrically connected to at least one phase Different backlight units; the control module respectively sends a control signal to the power distribution unit, and the power distribution unit sends a power distribution signal to a corresponding power supply unit according to the control signal received by it, and the power supply unit According to the power distribution signals received by them, respectively provide the power required by the corresponding backlight units.
较佳地，该显示装置还包含一屏幕显示单元，该屏幕显示单元电连接于该控制模组，并由使用者操控而发出该设定指令至该控制模组。Preferably, the display device further includes a screen display unit, the screen display unit is electrically connected to the control module, and is manipulated by the user to send the setting command to the control module.
较佳地，该配电单元是一脉冲宽度调制芯片，所述背光单元为发光二极管光源或灯管光源。Preferably, the power distribution unit is a pulse width modulation chip, and the backlight unit is a light emitting diode light source or a lamp tube light source.
本发明的另一目的，在提出前述显示装置的亮度设定方法。Another object of the present invention is to provide a brightness setting method for the aforementioned display device.
于是，本发明的亮度设定方法，应用于前述显示装置，并包含以下步骤：Therefore, the brightness setting method of the present invention is applied to the aforementioned display device, and includes the following steps:
(A)该控制模组接收关于一使用者所指定的一设定指令，并依据该设定指令发出一控制讯号至该配电单元，该设定指令是关于该显示装置的亮度设定；(B)该配电单元依据该控制讯号，发出一关于各个背光单元的供电量的配电讯号至该供电单元；及(C)该供电单元依据该配电讯号，分别提供所述背光单元所需的电力，使所述背光单元分别发出对应亮度的光线。(A) The control module receives a setting command specified by a user, and sends a control signal to the power distribution unit according to the setting command, the setting command is about the brightness setting of the display device; (B) the power distribution unit sends a power distribution signal to the power supply unit according to the control signal; and (C) the power supply unit respectively provides the backlight units with The required power is used to make the backlight unit emit light with corresponding brightness.
较佳地，该配电单元与该供电单元的数量各为多个且数量相互对应，于步骤(A)该控制模组分别发出一控制讯号至所述配电单元；于步骤(B)所述配电单元分别发出一配电讯号至一相异的供电单元；于步骤(C)所述供电单元分别提供至少一相异的背光单元所需的电力。Preferably, the number of the power distribution unit and the power supply unit is multiple and the numbers correspond to each other. In step (A), the control module sends a control signal to the power distribution unit respectively; in step (B), the The power distribution unit respectively sends out a power distribution signal to a different power supply unit; in step (C), the power supply unit respectively provides power required by at least one different backlight unit.
较佳地，该显示装置还包含一屏幕显示单元，且于步骤(A)该设定指令是由该使用者操控该屏幕显示单元而发出至该控制模组。Preferably, the display device further includes a screen display unit, and in step (A), the setting command is sent to the control module by the user manipulating the screen display unit.
本发明的有益效果在于：使用者可依据需要，通过控制模组、电源模组设定各个背光模组的供电量，使所述背光单元分别发出对应亮度的光线，而调整显示装置的显示屏幕的局部区域亮度。The beneficial effect of the present invention is that: the user can set the power supply of each backlight module through the control module and the power supply module according to the needs, so that the backlight units emit light of corresponding brightness, and adjust the display screen of the display device The local area brightness of .
附图说明Description of drawings
图1是一系统方块图，说明本发明的第一较佳实施例；FIG. 1 is a system block diagram illustrating a first preferred embodiment of the present invention;
图2是一流程图，说明该第一较佳实施例的亮度设定方法；Fig. 2 is a flowchart illustrating the brightness setting method of the first preferred embodiment;
图3是一系统方块图，说明本发明的第二较佳实施例；及Figure 3 is a system block diagram illustrating a second preferred embodiment of the present invention; and
图4是一流程图，说明该第二较佳实施例的亮度设定方法。FIG. 4 is a flowchart illustrating the brightness setting method of the second preferred embodiment.
具体实施方式Detailed ways
下面结合附图及实施例对本发明进行详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
参阅图1与图2，说明本发明显示装置1及其亮度设定方法的第一较佳实施例。Referring to FIG. 1 and FIG. 2 , the first preferred embodiment of the display device 1 and its brightness setting method of the present invention are described.
显示装置1包含一控制模组2、一电源模组3及一背光模组4。The display device 1 includes a control module 2 , a power module 3 and a backlight module 4 .
控制模组2包括一控制单元21，接收由一使用者指定的一设定指令，该设定指令是关于该显示装置1的亮度设定。此处，控制模组2为显示装置1的主板(main board，简称为MB)，控制单元21则为安装于控制模组2(主板)上的微处理器(micro processor unit，简称为MPU)芯片，用于操控显示装置1的运作。此外，视需要，控制单元21也能整合图形处理芯片(scaler chip)于内，而不限于前述实施内容。The control module 2 includes a control unit 21 for receiving a setting command designated by a user, the setting command is about the brightness setting of the display device 1 . Here, the control module 2 is a main board (abbreviated as MB) of the display device 1, and the control unit 21 is a microprocessor (micro processor unit, abbreviated as MPU) installed on the control module 2 (main board). The chip is used to control the operation of the display device 1 . In addition, if necessary, the control unit 21 can also integrate a graphics processing chip (scaler chip) inside, and is not limited to the aforementioned implementation content.
电源模组3包括一电连接于控制模组2的配电单元31，及一电连接于配电单元31的供电单元32。配电单元31接收由该控制模组2发出且关于该设定指令的至少一控制讯号，并依据该控制讯号发出一配电讯号至该供电单元32，所述控制讯号与配电讯号是有关于背光模组4的电力供给。此处，配电单元31是一脉冲宽度调制(pulse widthmodulation，简称为PWM)芯片，供电单元32则为能充放电的电容等电子组件，但配电单元31与供电单元32还能视需要而使用不同的电子组件，不以此处提出的技术为限。The power module 3 includes a power distribution unit 31 electrically connected to the control module 2 , and a power supply unit 32 electrically connected to the power distribution unit 31 . The power distribution unit 31 receives at least one control signal sent by the control module 2 and related to the setting command, and sends a power distribution signal to the power supply unit 32 according to the control signal, and the control signal and the power distribution signal are related. Regarding the power supply of the backlight module 4 . Here, the power distribution unit 31 is a pulse width modulation (PWM for short) chip, and the power supply unit 32 is an electronic component such as a capacitor capable of charging and discharging. Use different electronic components, not limited to the techniques presented here.
背光模组4包括多个(此处以四个为例进行说明)电连接于供电单元32的背光单元41、42、43、44，所述背光单元41、42、43、44为发光二极管光源或灯管光源，且能设计为直下式光源或旁侧式光源。The backlight module 4 includes a plurality of backlight units 41, 42, 43, 44 electrically connected to the power supply unit 32. Lamp light source, and can be designed as direct light source or side light source.
根据上述内容，本发明显示装置1的供电单元32能依据关于各个背光单元41的供电量的配电讯号，而分别提供所述背光单元41、42、43、44所需的电力，使所述背光单元41、42、43、44分别发出对应亮度的光线，让使用者能依其需要设定各个背光单元41、42、43、44的发光程度，以对应调整显示装置1各局部区域的亮度。According to the above, the power supply unit 32 of the display device 1 of the present invention can provide the power required by the backlight units 41, 42, 43, 44 respectively according to the power distribution signal about the power supply amount of each backlight unit 41, so that the The backlight units 41, 42, 43, 44 respectively emit light of corresponding luminance, so that users can set the luminous levels of each backlight unit 41, 42, 43, 44 according to their needs, so as to adjust the brightness of each local area of the display device 1 accordingly. .
以下说明本发明用于调整显示装置1亮度的方法。The method for adjusting the brightness of the display device 1 according to the present invention will be described below.
步骤S1，控制模组2接收关于使用者所指定的一设定指令，并依据该设定指令发出一控制讯号至配电单元31。该设定指令是关于显示装置1的亮度设定，该控制讯号是关于各个背光单元41、42、43、44的供电量。In step S1, the control module 2 receives a setting command specified by the user, and sends a control signal to the power distribution unit 31 according to the setting command. The setting command is related to the brightness setting of the display device 1 , and the control signal is related to the power supply of each backlight unit 41 , 42 , 43 , 44 .
举例来说，假设电源模组3的总供电量为400，提供于背光单元41、42、43、44的供电量(如电流值)分别以I1、I2、I3、I4表示。使用者能通过该设定指令，将每一背光单元41、42、43、44的供电量依其需要而进行设定，例如设定为：For example, assuming that the total power supply of the power module 3 is 400, the power supply (such as current value) provided to the backlight units 41 , 42 , 43 , 44 is represented by I 1 , I 2 , I 3 , and I 4 respectively. Users can set the power supply of each backlight unit 41, 42, 43, 44 according to their needs through the setting command, for example, set as:
I1=I2-10=I3+15=I4-5I 1 =I 2 -10=I 3 +15=I 4 -5
所以可得I1=100，I2=110，I3=85，I4=105。因此，控制模组2会依照此设定指令的设定值，发出对应的控制讯号至配电单元31。So I 1 =100, I 2 =110, I 3 =85, I 4 =105. Therefore, the control module 2 sends a corresponding control signal to the power distribution unit 31 according to the setting value of the setting command.
步骤S2、S3，配电单元31依据该控制讯号，发出一关于各个背光单元41、42、43、44的供电量的配电讯号至该供电单元32。供电单元32依据前述的配电讯号，分别以I1(100)、I2(110)、I3(85)、I4(105)提供所述背光单元41、42、43、44所需的电力，使所述背光单元41、42、43、44分别发出对应亮度的光线。据此，根据使用者的设定，能分别调整背光单元41、42、43、44所接收的电力，以调整背光单元41、42、43、44的组件差异或液晶模组(图中未绘制)的玻璃面板穿透率差异所导致的亮度不均问题，并让使用者能进一步依其需要调整显示装置1各局部区域的亮度。In steps S2 and S3 , the power distribution unit 31 sends a power distribution signal about the power supply of each backlight unit 41 , 42 , 43 , 44 to the power supply unit 32 according to the control signal. The power supply unit 32 provides the power required by the backlight units 41, 42, 43, and 44 with I 1 (100), I 2 (110), I 3 (85), and I 4 (105) respectively according to the aforementioned power distribution signals. Electric power, so that the backlight units 41, 42, 43, 44 respectively emit light of corresponding brightness. Accordingly, according to the settings of the user, the power received by the backlight units 41, 42, 43, 44 can be adjusted respectively to adjust the component differences of the backlight units 41, 42, 43, 44 or the liquid crystal modules (not shown in the figure). ) the problem of uneven brightness caused by differences in the transmittance of the glass panels, and allows users to further adjust the brightness of each local area of the display device 1 according to their needs.
参阅图3与图4，为本发明显示装置1及其亮度设定方法的第二较佳实施例。该第二实施例与第一实施例大致相同，差别在于：第二实施例中，配电单元与供电单元的数量各为多个且数量相互对应，每一配电单元各电连接一相异的供电单元，且所述供电单元分别电连接于至少一相异的背光单元。本实施例中，电源模组3包括两个配电单元31、33以及两个供电单元32、34，配电单元31、背光单元41、背光单元42电连接于供电单元32，配电单元33、背光单元43、背光单元44则电连接于供电单元34。但是在其他实施方式中，每个供电单元32、34电连接的背光单元41、42、43、44的数量可以调整，例如其中一个供电单元电连接于一个背光单元，另一个供电单元电连接于三个背光单元，因此上述实施方式仅用于说明，不应以此限制本发明的实施范围。Referring to FIG. 3 and FIG. 4 , it is a second preferred embodiment of the display device 1 and its brightness setting method of the present invention. The second embodiment is roughly the same as the first embodiment, the difference is that in the second embodiment, the number of power distribution units and power supply units are multiple and correspond to each other, and each power distribution unit is electrically connected to a different power supply units, and the power supply units are respectively electrically connected to at least one different backlight unit. In this embodiment, the power supply module 3 includes two power distribution units 31, 33 and two power supply units 32, 34, the power distribution unit 31, the backlight unit 41, and the backlight unit 42 are electrically connected to the power supply unit 32, and the power distribution unit 33 , the backlight unit 43 and the backlight unit 44 are electrically connected to the power supply unit 34 . However, in other embodiments, the number of backlight units 41, 42, 43, 44 electrically connected to each power supply unit 32, 34 can be adjusted, for example, one power supply unit is electrically connected to one backlight unit, and the other power supply unit is electrically connected to There are three backlight units, so the above implementation is only for illustration and should not limit the implementation scope of the present invention.
此外，本实施例中，显示装置1还包含一屏幕显示单元5(OSD)，屏幕显示单元5电连接于控制模组2的控制单元21，让使用者能通过操控显示装置1的屏幕选单(menu)而发出设定指令至该控制模组2，进行显示装置1的设定。In addition, in this embodiment, the display device 1 further includes an on-screen display unit 5 (OSD), the on-screen display unit 5 is electrically connected to the control unit 21 of the control module 2, so that the user can manipulate the on-screen menu (OSD) of the display device 1 menu) to send a setting command to the control module 2 to set the display device 1 .
以下说明本实施例的显示装置1的亮度设定方法。The brightness setting method of the display device 1 of this embodiment will be described below.
步骤P1：使用者通过对屏幕显示单元5的操控，令控制模组2分别发出一控制讯号至所述配电单元31、33。Step P1: The user makes the control module 2 send a control signal to the power distribution units 31 and 33 respectively by manipulating the screen display unit 5 .
步骤P2、P3：配电单元31、33依据其接收的控制讯号，分别发出一配电讯号至一相异的供电单元32、34。随后，供电单元32、34依据其接收的配电讯号，分别提供至少一相异的背光单元41、42、43、44所需的电力。Steps P2, P3: The power distribution units 31, 33 respectively send out a power distribution signal to a different power supply unit 32, 34 according to the received control signal. Then, the power supply units 32 , 34 respectively provide power required by at least one different backlight unit 41 , 42 , 43 , 44 according to the power distribution signal received by them.
依照上述方式，使用者可以简便地设定显示装置1的局部亮度。举例来说，屏幕显示单元5(OSD)于显示装置1显示两个关于显示装置1局部区域亮度的屏幕选单，其中一个选单对应于背光单元41、42的亮度设定，另一个选单对应于背光单元43、44的亮度设定。因此，使用者可由显示装置1的设定按键(图中未绘制)，于显示装置1上选择要对背光单元41、42或背光单元43、44进行设定，并自行决定背光单元41、42或背光单元43、44对应区域的亮度。According to the above method, the user can easily set the local brightness of the display device 1 . For example, the on-screen display unit 5 (OSD) displays two screen menus on the display device 1 about the brightness of a local area of the display device 1, one of which corresponds to the brightness setting of the backlight units 41, 42, and the other menu corresponds to the brightness of the backlight. Brightness setting for units 43,44. Therefore, the user can choose to set the backlight units 41, 42 or the backlight units 43, 44 on the display device 1 through the setting button (not shown in the figure) of the display device 1, and determine the backlight units 41, 42 by themselves. Or the brightness of the areas corresponding to the backlight units 43 and 44 .
在此要说明的是，上述配电单元、供电单元与背光单元的数量仅为本发明的举例说明，不应以此为限，而能依需要而调整其数量及连接关系。It should be noted here that the numbers of the above-mentioned power distribution units, power supply units and backlight units are only examples of the present invention, and should not be limited thereto, and their numbers and connection relationships can be adjusted as required.
综上所述，本发明显示装置1让使用者通过控制模组2设定电源模组3供应背光单元41、42、43、44的供电量，能对应调整背光单元41、42、43、44的发光程度，以解决显示装置1的亮度不均的问题，并让使用者可对显示装置1的局部区域进行亮度设定而增进使用的弹性，所以能达成本发明的目的。To sum up, the display device 1 of the present invention allows the user to set the amount of power supplied by the power supply module 3 to the backlight units 41, 42, 43, 44 through the control module 2, and can adjust the backlight units 41, 42, 43, 44 accordingly. To solve the problem of uneven brightness of the display device 1, and allow users to set the brightness of a local area of the display device 1 to enhance the flexibility of use, so the purpose of the present invention can be achieved.
以上所述者，仅为本发明的较佳实施例而已，当不能以此限定本发明实施的范围，即凡依本发明权利要求书及说明书内容所作的简单的等效变化与修饰，皆仍属本发明专利的范围。The above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the claims of the present invention and the contents of the description are still the same. Belong to the scope of the patent of the present invention.
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