CN105847479A - 显示屏驱动器、显示屏及移动终端 - Google Patents

显示屏驱动器、显示屏及移动终端 Download PDF

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CN105847479A
CN105847479A CN201610355615.5A CN201610355615A CN105847479A CN 105847479 A CN105847479 A CN 105847479A CN 201610355615 A CN201610355615 A CN 201610355615A CN 105847479 A CN105847479 A CN 105847479A
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module
data
view data
display driver
voltage
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CN105847479B (zh
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安泰生
周锦杰
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/118,876 priority patent/US20180151105A1/en
Priority to PCT/CN2016/086638 priority patent/WO2017201780A1/zh
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    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

本发明提供一种显示屏驱动器，一种显示屏驱动器，用于处理终端处理器传送的图像数据，所述驱动器包括数据接收器、一比特位宽存储器、图像处理模块、图像数据锁存器、数模转换模块、伽马校正模块、电压模块、脉冲宽度调制模块及图像模拟数据输出模块；所述显示屏驱动器还包括控制模块，所述控制模块由所述处理器启动以侦测所述一比特位宽存储器是否开启，并且当所述一比特位宽存储器开启，所述控制模块关闭所述图像处理模块及伽马校正模块，所述电压模块根据一比特位宽存储器给所述图像数据锁存器的数据为所述数模转换模块提供相应的灰阶电压；所述图像模拟数据输出模块用于接收并输出模拟信号。

Description

显示屏驱动器、显示屏及移动终端
技术领域
本发明涉及显示技术领域，特别涉及一种显示屏驱动器、显示屏及移动终端。
背景技术
近几年智能手机发展迅速，随着功能越来越强大，功耗也越来越大。显示屏功耗占手机功耗的大部分。现有的一种省电方式是在显示屏驱动器内设置集成锁存器，动态图像数据由手机应用处理器的发送到显示屏驱动器，驱动器中数据接收器把接收到的数据转换成RGB信号存储在集成锁存器中并作实时显示。其中，为了节省手机功耗，现有技术中将单点式随机存储器集成到驱动器中，尽量降低手机功耗，但是显示屏驱动器在显示单一画面时，所述数据锁存器提取的数据仍经过随机存储器后续的一些图像模块，如色彩增强，动态背光控制等，此过程中仍要消耗部分电量。
发明内容
本发明的目的在于提供一种减小显示屏耗电量的显示屏驱动器及显示屏。
本申请还提供一种显示屏及终端
本申请提供一种显示屏驱动器，用于处理及执行终端处理器传送的图像数据及指令，所述驱动器包括数据接收器、一比特位宽存储器、图像处理模块、图像数据锁存器、数模转换模块、伽马校正模块、电压模块、脉冲宽度调制模块及图像模拟数据输出模块；
所述数据接收器接收所述处理器发送的图像数据及与图像数据内容匹配的指令；
所述一比特位宽存储器接收所述数据接收器接发送图像数据；
所述图像处理模块用于处理一比特位宽存储器传送的图像数据；
所述图像数据锁存器存储所述图像处理模块处理后的图像数据或者所述数据接收器发送图像数据；
所述数模转换模块接收所述图像数据锁存器传递的图像数据并将其转换成模拟信号；
所述伽马校正模块用于校正所述图像数据锁存器输出的数据信号电压值并传递给所述数据转换器，同时所述电压模块为所述伽马校正模块提供参考电压；
所述显示屏驱动器还包括控制模块，所述控制模块由所述处理器发送的与图像数据内容匹配的指令启动以侦测所述一比特位宽存储器是否开启，并且当所述处理器启动所述一比特位宽存储器开启，所述控制模块关闭所述图像处理模块及伽马校正模块，所述电压模块根据一比特位宽存储器给所述图像数据锁存器的数据为所述数模转换模块提供相应的灰阶电压；
所述图像模拟数据输出模块用于接收并输出模拟信号。
其中，所述处理器发送指令用于启动或关闭所述一比特位宽存储器，并且启动所述控制模块进行检测，当所述控制模块检测到所述一比特位宽存储器关闭时，所述控制模块不工作。
其中，所述处理器发送的图像数据包括0灰阶值和255灰阶值，所述指令匹配0灰阶值和255灰阶值以使启动所述一比特位宽存储器。
其中，所述图像处理模块包括色彩增强模块及动态背光调节模块，所述色彩增强模块增强所述数据接收器传送的图像数据的色域，所述动态背光调节模块调节经所述色彩增强模块处理的图像数据的灰度并产生相应的背光调节信号。
其中，所述显示屏驱动器包括脉冲宽度调制模块，所述脉冲宽度调制模块调节所述图像处理模块产生背光调节信号。
其中，所述数模转换模块包括电压选择开关，用于匹配0灰阶值或255灰阶值时的灰阶电压。
其中，所述显示屏驱动器还包括电平转换模块，用于提高所述图像数据锁存器输出的图像数据的电压值。
其中，所述数据接收器具有MIPI接口。
本申请所述的显示屏包括显示面板及权利要求1-8任一项所述的显示屏驱动器；所述显示屏驱动器与显示面板电连接。
本申请所述的终端包括所述的显示屏及主板，所述主板设有处理器，处理器连接所述显示屏驱动器用以驱动显示屏。
本发明所述的显示屏驱动器本发明所述的显示器驱动器采用协议接口的数据接收器，通过设置控制模块检测一比特位宽存储器而控制图像处理器及电压伽马校正模块关闭，当数据接收器接受的是单一色彩的画面数据，如具有0灰阶或者255灰阶的图像，控制模块关闭图像处理器及电压伽马校正模块，相较于现有技术的任何图像都要经过图像处理模块而言，本申请从可以直接存储至图像数据锁存器内，避免启动图像处理模块及伽马校正模块而损耗电量，节省终端的电量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明提供的终端的功能模块示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，本发明提供一种显示屏驱动器10、显示屏及终端20，所述显示屏驱动器用于处理终端处理器20发送的图像数据并传给显示屏以驱动显示屏。所述显示屏包括与显示屏驱动器电连接的显示面板，所述显示屏为液晶显示屏。所述终端可以为手机或者显示器，本实施例中一手机为例。所述终端包括主板，所述主板设有处理器21，处理器21连接所述显示屏驱动器10用以驱动所述显示屏驱动器。
本实施例中，所述驱动器10包括数据接收器11、一比特位宽存储器12、图像处理模块13、图像数据锁存器14、数模转换模块15、伽马校正模块16、电压模块17、脉冲宽度调制模块17及图像模拟数据输出模块18。
所述数据接收器11接收所述处理器21发送的图像数据及与图像数据内容匹配的指令。所述数据图像包括彩色画面数据和单色画面数据，相应匹配的指令配合括彩色画面数据或单色画面数据来控制后续其他模块的相应执行。
所述一比特位宽存储器12接收所述数据接收器11接发送图像数据。
所述图像处理模块13用于处理一比特位宽存储器12传送的图像数据。
所述图像数据锁存器14存储所述图像处理模块13处理后的图像数据或者所述数据接收器11发送的图像数据。
所述数模转换模块15接收所述图像数据锁存器14传递的图像数据并将其转换成模拟信号。所述伽马校正模块16用于校正所述图像数据锁存器14输出的数据信号电压值并传递给所述数据转换器15，同时所述电压模块17为所述伽马校正模块16提供参考电压。
所述显示屏驱动器10还包括控制模块19，所述控制模块19由所述处理器21发送的与图像数据内容匹配的指令启动以侦测所述一比特位宽存储器11是否开启，并且当所述处理器启动所述一比特位宽存储器11开启，所述控制模块19关闭所述图像处理模块13及伽马校正模块16，所述电压模块17根据一比特位宽存储器12给所述图像数据锁存器14的图像数据为所述数模转换模块15提供相应的灰阶电压。所述图像模拟数据输出模块18用于接收并输出模拟信号。
所述处理器21发送指令用于启动或关闭所述一比特位宽存储器12，并且启动所述控制模块19进行检测，当所述控制模块19检测到所述一比特位宽存储器12关闭时，所述控制模块19不工作。
本实施例中，所述数据接收器11具有MIPI接口，可以接收所述处理器21发送的与图像数据内容匹配的指令。所述处理器21发送的图像数据为单一画面时，如白色与黑色，相应的指令发给所述数据接收器11，以开启所述一比特位宽存储器12，并且当所述一比特位宽存储器12开启，所述控制模块19便启动并关闭所述图像处理模块13及伽马校正模块16。所述一比特位宽存储器12的图像数据直接进入所述图像数据锁存器14内存储，所述数模转换模块15提取所述图像数据锁存器14传递的图像数据并将其转换成模拟信号。所述电压模块17根据一比特位宽存储器12给所述图像数据锁存器14的图像数据为所述数模转换模块15提供相应的灰阶电压。所述图像模拟数据输出模块18用于接收并输出模拟信号。其中所述显示屏驱动器10还包括电平转换模块22，用于提高所述图像数据锁存器14输出的图像数据的电压值，之后的图像数据在进入所述数模转换模块15。
本发明所述的显示器驱动器采用协议接口的数据接收器，通过设置控制模块检测一比特位宽存储器而控制图像处理器及电压伽马校正模块关闭，当数据接收器接受的是单一色彩的画面数据，如具有0灰阶或者255灰阶的图像，控制模块关闭图像处理器及电压伽马校正模块，相较于现有技术的任何图像都要经过图像处理模块而言，本申请从可以直接存储至图像数据锁存器内，避免启动图像处理模块及伽马校正模块而损耗电量，节省终端的损耗。
本实施例中，所述处理器21发送的图像数据包括0灰阶值和255灰阶值的图像，所述指令匹配0灰阶值和255灰阶值以使启动所述一比特位宽存储器12。匹配0灰阶值及255灰阶值的图像为单一色彩的图像。如果为复杂色彩的画面，则处理器21将关闭一比特位宽存储器12。进一步，所述数模转换模块15包括电压选择开关，用于匹配0灰阶值或255灰阶值时的灰阶电压。其中，所述图像数据的0灰阶值和255灰阶值在一比特位宽存储器12内以0和1的形式存在。
本实施例中，所述图像处理模块13包括色彩增强模块及动态背光调节模块，所述色彩增强模块增强所述数据接收器传送的图像数据的色域，所述动态背光调节模块调节经所述色彩增强模块处理的图像数据的灰度并产生相应的背光调节信号。还可以包括白平衡调节模块，图像数据锐度增强模块等，图中未示。
其中，所述显示屏驱动器10包括脉冲宽度调制模块23，所述脉冲宽度调制模块23调节所述图像处理模块13产生背光调节信号。
其中，所述显示屏还包括薄膜晶体管开关器件，所述图像模拟数据输出模块用于连接所述薄膜晶体管开关器件的源极。所述处理器传送的为串行的图像数据通过转换后形成并行的图像数据，所述图像数据为视频数据。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (10)

1.一种显示屏驱动器，用于处理及执行终端处理器传送的图像数据及指令，所述驱动器包括数据接收器、一比特位宽存储器、图像处理模块、图像数据锁存器、数模转换模块、伽马校正模块、电压模块、脉冲宽度调制模块及图像模拟数据输出模块；
所述数据接收器接收所述处理器发送的图像数据及与图像数据内容匹配的指令；
所述一比特位宽存储器接收所述数据接收器接发送图像数据；
所述图像处理模块用于处理一比特位宽存储器传送的图像数据；
所述图像数据锁存器存储所述图像处理模块处理后的图像数据或者所述数据接收器发送图像数据；
所述数模转换模块接收所述图像数据锁存器传递的图像数据并将其转换成模拟信号；
所述伽马校正模块用于校正所述图像数据锁存器输出的数据信号电压值并传递给所述数据转换器，同时所述电压模块为所述伽马校正模块提供参考电压；
其特征在于，所述显示屏驱动器还包括控制模块，所述控制模块由所述处理器发送的与图像数据内容匹配的指令启动以侦测所述一比特位宽存储器是否开启，并且当所述处理器启动所述一比特位宽存储器开启，所述控制模块关闭所述图像处理模块及伽马校正模块，所述电压模块根据一比特位宽存储器给所述图像数据锁存器的数据为所述数模转换模块提供相应的灰阶电压；
所述图像模拟数据输出模块用于接收并输出模拟信号。
2.如权利要求1所述的显示屏驱动器，其特征在于，所述处理器发送指令用于启动或关闭所述一比特位宽存储器，并且启动所述控制模块进行检测，当所述控制模块检测到所述一比特位宽存储器关闭时，所述控制模块不工作。
3.如权利要求1所述的显示屏驱动器，其特征在于，所述处理器发送的图像数据包括0灰阶值和255灰阶值，所述指令匹配0灰阶值和255灰阶值以使启动所述一比特位宽存储器。
4.如权利要求1所述的显示屏驱动器，其特征在于，所述图像处理模块包括色彩增强模块及动态背光调节模块，所述色彩增强模块增强所述数据接收器传送的图像数据的色域，所述动态背光调节模块调节经所述色彩增强模块处理的图像数据的灰度并产生相应的背光调节信号。
5.如权利要求1或4所述的显示屏驱动器，其特征在于，所述显示屏驱动器包括脉冲宽度调制模块，所述脉冲宽度调制模块调节所述图像处理模块产生背光调节信号。
6.如权利要求1所述的显示屏驱动器，其特征在于，所述数模转换模块包括电压选择开关，用于匹配0灰阶值或255灰阶值时的灰阶电压。
7.如权利要求1所述的显示屏驱动器，其特征在于，所述显示屏驱动器还包括电平转换模块，用于提高所述图像数据锁存器输出的图像数据的电压值。
8.如权利要求1所述的显示屏驱动器，其特征在于，所述数据接收器具有MIPI接口。
9.一种显示屏，其特征在于，所述显示屏包括显示面板及权利要求1-8任一项所述的显示屏驱动器；所述显示屏驱动器与显示面板电连接。
10.一种终端，其特征在于，所述终端包括权利要求9所述的显示屏及主板，所述主板设有处理器，处理器连接所述显示屏驱动器用以驱动显示屏。
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