CN1722215A - Display device and driving method thereof - Google Patents

Display device and driving method thereof Download PDF

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CN1722215A
CN1722215A CN 200510091398 CN200510091398A CN1722215A CN 1722215 A CN1722215 A CN 1722215A CN 200510091398 CN200510091398 CN 200510091398 CN 200510091398 A CN200510091398 A CN 200510091398A CN 1722215 A CN1722215 A CN 1722215A
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signal
sensing
state
sensing signal
photosensor
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CN 200510091398
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CN100433121C (en
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朴钟雄
李柱亨
金炯杰
鱼基汉
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三星电子株式会社
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Abstract

一种显示装置包括:面板组件;背光单元,向面板组件提供光;第一光电传感器;第二光电传感器;感测信号处理器;以及信号控制器。 A display apparatus comprising: a panel assembly; a backlight unit providing light to the panel assembly; a first photosensor; second photosensor; sensing signal processor; and a signal controller. 第一光电传感器被提供环境光和来自背光单元的光,以产生第一感测信号。 A first ambient light photosensor is provided light from the backlight unit to generate a first sensing signal. 第二光电传感器被阻断环境光并接收来自背光单元的光,以产生第二感测信号。 Second photosensor is blocked by the ambient light and receives light from the backlight unit to generate a second sensing signal. 感测信号处理器接收来自第一和第二光电传感器的第一和第二感测信号,以便处理。 Sensing signal processor receives the first and second sensing signals from the first and second photosensor for processing. 信号控制器根据来自感测信号处理器的处理过的第一和第二感测信号来确定感测状态,并根据该感测状态执行预定的控制操作。 Controller determines the signal sensed condition treated according to the first and second sensing signals from the sensing signal processor, and performs a predetermined control operation based on the sensed state.

Description

显示装置及其驱动方法 Display apparatus and driving method thereof

技术领域 FIELD

本发明涉及一种显示装置及其驱动方法。 The present invention relates to a display apparatus and a driving method.

背景技术 Background technique

典型的液晶显示装置(LCD)包括下面板和上面板,以及设在上面板与下面板之间、具有介电各向异性的液晶(LC)层。 A typical liquid crystal display device (LCD) comprising a lower panel and upper panel, and disposed between the upper panel and the lower panel, having a dielectric anisotropy of liquid crystal (LC) layer. 下面板和上面板上设有像素电极和公共电极。 Lower panel and upper panel is provided with the pixel electrode and the common electrode. 像素电极排列成矩阵,并且每个像素电极连接到开关元件Q例如薄膜晶体管(TFT)。 Pixel electrodes arranged in a matrix, and each pixel electrode is connected to the switching element Q such as thin film transistors (TFT). 每行像素电极被顺序地供给数据电压。 Each row of pixel electrodes are sequentially supplied to the data voltage. 公共电极覆盖着上面板的整个表面,并被供给公共电压。 The common electrode covers the entire surface of the upper panel and is supplied to a common voltage. 像素电极、公共电极以及两者间的LC层形成LC电容器,并且LC电容器是与开关元件Q一起组成每个像素的基本单元。 The pixel electrode, the common electrode and the LC layer form an LC capacitor between them, and the LC capacitor and the switching element Q is composed of a basic unit with each pixel.

LCD装置通过调节施加到LC层上的电场的强度从而控制穿过下面板和上面板的光的透射率来显示期望的图像。 Electric field intensity on the LC layer to control the transmittance of light passing through the lower panel and upper panel to display a desired image by adjusting applied to the LCD device. 为了避免由于向LC层施加一个方向的电场而引起LC层的恶化,对于每帧、每个像素行或者每个像素,将数据电压的极性相对于公共电压进行反转。 In order to avoid applying an electric field to the LC layer in one direction to cause the deterioration of the LC layer, for each frame, each pixel row or each pixel, the polarity of the data voltages is reversed to the common voltage.

近来,已经研制出向这类LCD装置提供光电传感器的产品。 Recently it has been developed to provide a photoelectric sensor to the LCD device of such products. 例如,当人手或触摸笔接触LCD装置的屏幕时,光电传感器依据人手或触摸笔的位置对光的变化提供响应。 For example, when a human hand or a touch pen touching the screen of the LCD device, the photosensor providing a response according to the change of the position of the light pen or touch the hand. LCD装置确定触摸信息例如是否存在着触摸,以及触摸的位置,以便传输给外部装置。 LCD touch information determining means, for example, whether there was a touch, and the location of the touch, for transmission to an external device. 外部装置响应于该触摸信息而传输图像信号。 The image signals transmitted to the external apparatus in response to touch information. 光电传感器由LCD装置内的单独触摸板形成。 Photosensor formed from a separate touch panel within the LCD apparatus. 然而,这样的单独触摸板增加了LCD装置的厚度和重量,并使得LCD装置难以显示详细的字符或画面。 However, such individual touch panel increases the thickness and weight of the LCD device, and causes the LCD unit is difficult to display text or image detail.

因此,已经研制出在显示图像的像素内形成光电传感器的技术。 Accordingly, techniques have been developed photosensor formed in a pixel displaying an image. 然而,这类光电传感器会引起响应于触摸的光电感测的许多错误,这是由于光电传感器的输出特性会根据周围环境而变化,例如外部光的强度,背光的亮度,温度等。 However, such a photosensor causes many errors in response to the photo-sensing touch, which is due to the output characteristics of the photoelectric sensor will vary depending on the surrounding environment, such as the intensity of the external light, the backlight brightness, temperature and the like. 从而,尽管发生了触摸,但LCD装置可能觉察不出任何触摸,或者尽管没有发生触摸,但LED装置可能觉察到了触摸。 Thus, although the touch occurs, but not the LCD device may perceive no touch although a touch or does not occur, but the LED devices may perceive the touch.

发明内容 SUMMARY

本发明的目的是提供一种显示装置及其驱动方法,其能够产生光电传感器的稳定输出信号,以便响应于用户的触摸准确地确定触摸信息,而与外部环境的变化无关。 Object of the present invention is to provide a display device and a driving method which is capable of producing a stable output signal of the photosensor, in response to a touch of the user to accurately determine the touch information, regardless of variations in the external environment.

提供了一种显示装置,其包括:面板组件;向所述面板组件提供光的背光单元;第一光电传感器;第二光电传感器;感测信号处理器;以及信号控制器。 There is provided a display device comprising: a panel assembly; a backlight unit providing light to the panel assembly; a first photosensor; second photosensor; sensing signal processor; and a signal controller. 第一光电传感器被提供环境光和来自所述背光单元的光,以产生第一感测信号。 A first ambient light photosensor is provided to the light from the backlight unit to generate a first sensing signal. 第二光电传感器被阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号。 It said second photosensor is blocked by the ambient light and receives light from the backlight unit to generate a second sensing signal. 感测信号处理器接收来自所述第一和第二光电传感器的所述第一和第二感测信号,以便处理。 A sensing signal processor receives the first and the second from the first photosensor and a second sensing signal for processing. 信号控制器根据来自所述感测信号处理器的处理过的第一和第二感测信号来确定感测状态,并根据该感测状态执行预定的控制操作。 Controller determines the signal sensed condition treated according to the first and second sensing signals from the sensing signal processor, and performs a predetermined control operation based on the sensed state.

提供了一种设有背光单元的显示装置的驱动方法,其中背光单元用来提供光,所述方法包括:在第一光电传感器处接收环境光和来自所述背光单元的光,以产生第一感测信号;在第二光电传感器处阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;响应于所述第一和第二感测信号产生状态判断信号;以及响应于由所述状态判断信号指示的所述环境光的强度,确定感测状态。 It is providing a method of driving a display device provided with a backlight unit, wherein the backlight unit for providing light, the method comprising: receiving light from the backlight unit in a first ambient light from the photosensor to produce a first sensing signal; a second block of said ambient light photosensor and receives light from the backlight unit to generate a second sensing signal; generating a status signal in response to determining the first and second sensing signal ; and in response to the intensity of the ambient light is determined by the state signal indicative of the sensed condition is determined. 所述状态判断信号表示所述第一和第二感测信号之间的差值。 The state determination signal representing the difference between the first and the second sensing signal.

提供了一种显示装置,其包括:面板组件;向所述面板组件提供光的背光单元;第一光电传感器;第二光电传感器;第三光电传感器;感测信号处理器;以及信号控制器。 There is provided a display device comprising: a panel assembly; a backlight unit providing light to the panel assembly; a first photosensor; second photosensor; a third photosensor; sensing signal processor; and a signal controller. 第一光电传感器接收环境光和来自所述背光单元的光,以产生第一感测信号。 A first photosensor receiving light and ambient light from the backlight unit to generate a first sensing signal. 第二光电传感器被阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号。 It said second photosensor is blocked by the ambient light and receives light from the backlight unit to generate a second sensing signal. 第三光电传感器接收所述环境光和来自所述背光单元的光,以根据用户触摸产生第三感测信号。 The third photosensor receiving light and the ambient light from the backlight unit, to generate third sensing signal according to a user touch. 感测信号处理器处理来自所述第一至第三光电传感器的所述第一至第三感测信号。 The sensing signal processor processes the first through third from the first to third photosensor sensing signal. 信号控制器根据处理过的第一和第二感测信号来调整(regulate)所述第三感测信号。 The controller adjusts the signal (a Regulate) said third sensing signal in accordance with the processed first and second sensing signal.

提供了一种设有背光单元的显示装置的驱动方法,其中背光单元用来提供光,所述方法包括:在第一光电传感器处接收环境光和来自所述背光单元的光,以产生第一感测信号;在第二光电传感器处阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;在第三光电传感器处接收所述环境光和来自所述背光单元的光,以根据触摸产生第三感测信号;以及响应于所述第一和第二感测信号调整所述第三感测信号。 It is providing a method of driving a display device provided with a backlight unit, wherein the backlight unit for providing light, the method comprising: receiving light from the backlight unit in a first ambient light from the photosensor to produce a first sensing signal; a second block of said ambient light photosensor and receives light from the backlight unit to generate a second sensing signal; a third photosensor receiving light from the environment at the back light unit to generate a third touch sensing signal; and in response to the first and third sensing signal to adjust the second sensing signal sensing.

附图说明 BRIEF DESCRIPTION

通过参照附图详细地说明本发明的示例性实施例,本发明将会变得更加清楚,在附图中:图1是依照本发明示例性实施例的LCD装置的框图;图2是依照本发明示例性实施例的LCD装置的子像素的等效电路图;图3是依照本发明示例性实施例的LCD装置的示例性布局图;图4和5分别是沿着图3中的线IV-IV'和V-V'所取的截面图;图6A和6B各自是依照本发明示例性实施例的LCD装置的参考光电传感器的示意图;图7是依照本发明示例性实施例的光电传感器安装在LCD装置的LC面板组件上的位置的示意图;图8是依照本发明示例性实施例的LCD装置的信号读出器和信号控制器的框图;图9说明在图6A和6B中示出的参考光电传感器的感测信号;图10是依照本发明示例性实施例的用于确定LCD装置的感测状态的一个示例性流程图;图11是依照本发明示例性实施例的用于确定LCD装置的感测状态 DESCRIPTION OF THE DRAWINGS The exemplary embodiment in detail exemplary embodiments of the present invention, the present invention will become more apparent from the accompanying drawings in which: Figure 1 is a block diagram of an LCD device according to an exemplary embodiment of the present invention; FIG. 2 is in accordance with the present equivalent circuit diagram of a sub-pixel of the LCD device according to an exemplary embodiment of the invention; FIG. 3 is an exemplary layout view of an LCD device according to an exemplary embodiment of the present invention, in accordance with the embodiment; FIGS. 4 and 5 are taken along line IV- 3 sectional view IV 'and V-V' taken; FIGS. 6A and 6B are each a schematic view of the reference photosensor LCD device according to an exemplary embodiment of the present invention, in accordance with; FIG. 7 is mounted with the photoelectric sensor to an exemplary embodiment of the present invention a schematic view of the position of the LC panel assembly of an LCD device; FIG. 8 is a block diagram of the reader signal and a signal controller of an LCD device according to an exemplary embodiment of the present invention, in accordance with the embodiment; FIG. 9 described in FIGS. 6A and 6B is shown in an exemplary flowchart of FIG. 10 is a determination of the sensed state of the LCD device according to an exemplary embodiment of the present invention;; reference photosensor sensing signal 11 is determined in accordance with an exemplary embodiment LCD embodiment of the present invention sensing the state of the apparatus 另一个示例性流程图;图12说明依照本发明另一个示例性实施例的LCD装置中取决于感测模式的显示区域内的光电传感器的感测信号的波形;以及图13是用于依照本发明示例性实施例的用于控制LCD装置的显示区域内的光电传感器的感测信号的示例性流程图。 Another exemplary flow diagram; FIG. 12 illustrates a waveform in accordance with a sensing signal of the photosensor within the LCD device according to another exemplary embodiment of the present invention depending on the embodiment of the sensing mode display area; and FIG. 13 is a accordance with the present exemplary embodiments of the invention, an example flow diagram of a sensing signal of the photosensor within the display area of ​​the LCD device control.

具体实施方式 Detailed ways

现在,将参照附图更加全面地说明本发明,在附图中示出的是本发明的示例性实施例。 Now, the present invention will be described more fully with reference to the accompanying drawings in which is illustrated an exemplary embodiment of the present invention. 然而,本发明可以以许多不同的形式来实施,因此不应当被解释为局限于此处阐述的实施例。 However, the present invention may be embodied in many different forms, and therefore should not be construed as limited to the embodiments set forth herein.

在附图中,为了清楚起见,各层和各区的厚度都被放大。 In the drawings, for clarity, the thickness of layers and zones are amplified. 在整个附图中,相同的标号表示相同的元件。 Throughout the drawings, like reference numerals denote like elements. 应当理解,当例如层、膜、区、基板或面板的元件被称作“位于另一元件之上”时,该元件可以直接位于另一元件之上,或者也可以存在着中介元件。 It should be understood that when, for example a layer, film, region, substrate or panel elements are referred to as "another element on", the element can be directly on the other element or intervening elements may also exist. 与此相反,当元件被称作“直接位于另一元件之上”时,则不存在任何中介元件。 In contrast, when an element is referred to as being "directly on" another element, no intervening elements present.

图1是依照本发明示例性实施例的液晶显示(LCD)装置的框图,而图2是依照本发明示例性实施例的LCD装置的像素的等效电路图。 FIG 1 is a liquid crystal in accordance with an exemplary embodiment of the present invention display (LCD) device block diagram, and FIG. 2 is an equivalent circuit diagram of a pixel of an LCD device according to an exemplary embodiment of the present invention.

参看图1和2,依照本发明示例性实施例的LCD装置包括液晶(LC)面板组件300和图像扫描器400,数据驱动器500,传感器扫描器(sensorscanner)700,以及连接到LC面板组件300的感测信号处理器800。 Referring to Figures 1 and 2, the LCD device in accordance with an exemplary embodiment of the present invention includes a liquid crystal (LC) panel assembly 300 and the image scanner 400, a data driver 500, a sensor scanner (sensorscanner) 700, and connected to the LC panel assembly 300 a sensing signal processor 800. LCD装置还包括向LC面板组件300提供光的背光单元900,供给上述元件所需的电压的驱动电压发生器950,以及控制上述元件的信号控制器600。 The LCD device further includes a backlight unit 900 providing light to the LC panel assembly 300, the supply voltage required for the element driving voltage generator 950, and a signal controller 600 controlling the above elements.

面板组件300包括多个信号线G1-Gn,D1-Dm,S1-Sn,P1-Pm,PSG和PSD,以及电气连接到信号线G1-Gn,D1-Dm,S1-Sn,P1-Pm,PSG和PSD并基本上排列成矩阵的多个像素。 Panel assembly 300 includes a plurality of signal lines G1-Gn, D1-Dm, S1-Sn, P1-Pm, PSG and PSD, and electrically connected to the signal lines G1-Gn, D1-Dm, S1-Sn, P1-Pm, PSG and PSD, and a plurality of pixels substantially arranged in a matrix.

信号线G1-Gn,D1-Dm,S1-Sn,P1-Pm,PSG和PSD包括传输图像扫描信号的图像扫描线G1-Gn和传输图像数据信号的数据线D1-Dm。 Signal lines G1-Gn, D1-Dm, S1-Sn, P1-Pm, PSG and PSD includes a data line transmitting an image scanned image scanning signal lines G1-Gn and transmit image data signals D1-Dm. 图像扫描线G1-Gn基本上沿行方向延伸,并且基本上相互平行,而数据线D1-Dm基本上沿列方向延伸,并且基本上相互平行且基本上垂直于图像扫描线G1-Gn。 The image scanning lines G1-Gn extend substantially in a row direction and substantially parallel to each other, while the data lines D1-Dm extend substantially in a column direction and substantially parallel to each other and substantially perpendicular to the image scanning lines G1-Gn.

信号线G1-Gn,D1-Dm,S1-Sn,P1-Pm,PSG和PSD还包括传输感测扫描信号的感测扫描线S1-Sn,和传输感测信号的感测信号线P1-Pm。 Signal lines G1-Gn, D1-Dm, S1-Sn, P1-Pm, PSG and PSD further comprises a sensing signal line sense scan line for transmitting sensing scan signals S1-Sn, and transmit sensed signals P1-Pm . 感测扫描线S1-Sn基本上沿行方向延伸,并且基本上相互平行,而感测信号线P1-Pm基本上沿列方向延伸,并且基本上相互平行。 Sensing the scan lines S1-Sn extend substantially in a row direction and substantially parallel to each other, and the sensing signal lines P1-Pm substantially extend in a column direction and substantially parallel to each other. 感测扫描线S1-Sn基本上平行于图像扫描线G1-Gn延伸,而感测信号线P1-Pm基本上平行于数据线D1-Dm延伸。 Sensing the scan lines S1-Sn are substantially parallel to the image scanning lines G1-Gn extend, and the sensing signal lines P1-Pm is substantially parallel to the data lines D1-Dm extend.

信号线G1-Gn,D1-Dm,S1-Sn,P1-Pm,PSG和PSD还包括传输控制电压VSG的控制电压线PSG和传输输入电压VSD的输入电压线PSD。 Signal lines G1-Gn, D1-Dm, S1-Sn, P1-Pm, PSG and PSD further comprises a transmission control voltage line input voltage line PSG and the PSD control transmission input voltage of the VSD voltage VSG. 控制电压线PSG基本上平行于图像扫描线G1-Gn和感测扫描线S1-Sn延伸,而输入电压线PSD基本上平行于数据线D1-Dm和感测信号线P1-Pm延伸。 PSG control voltage line substantially parallel to the image scanning lines G1-Gn and sensing scanning lines S1-Sn extend substantially PSD input voltage lines parallel to the data lines D1-Dm and the sensing signal lines extend P1-Pm.

每个像素包括电气连接到图像扫描线G1-Gn和数据线D1-Dm上的第一开关元件QS1,和电气连接到第一开关元件QS1上的LC电容器CLC和存储电容器CST。 Each pixel includes a first switching element electrically connected to the image scanning QS1 lines G1-Gn and the data lines D1-Dm, and a LC capacitor electrically connected to the first switching element QS1 the CLC and a storage capacitor CST.

第一开关元件QS1例如薄膜晶体管(TFT)具有三个端子:电气连接到图像扫描线G1-Gn其中一个(例如,Gi)上的控制端;电气连接到数据线D1-Dm其中一个(例如,Dj)上的输入端;以及电气连接到LC电容器CLC和存储电容器CST上的输出端。 A first switching element QS1 such as thin film transistor (TFT) has three terminals: electrically connected to the image scanning lines G1-Gn in which a control terminal (e.g., Gi of); electrically connected to the data lines D1-Dm one (e.g., input on the DJ); and an electrical output terminal connected to the LC capacitor CLC and the storage capacitor CST.

另外,每个像素包括光电传感器,该传感器包括电气连接到控制电压线PSG和输入电压线PSD上的感测元件QP,电气连接到感测扫描线S1-Sn和感测信号线P1-Pm上的第二开关元件QS2,以及电气连接在控制电压线PSG与第二开关元件QS2和感测元件QP间的节点之间的传感器信号电容器CP。 Further, each pixel includes a photoelectric sensor, the sensor comprising a sensing element is electrically connected to the control voltage line and the input voltage line PSG PSD QP, electrically connected to the sensing scanning lines S1-Sn and the sensed signal on the line P1-Pm QS2 second switching element, and electrically connected to the sensor capacitor CP signal between nodes between the control voltage line and a second switching element QS2 PSG and the sensing element QP. 或者,并非所有像素都包括光电传感器,例如,其中一个像素可以包括光电传感器,或者,以大约1mm至大约2mm间隔排列的每个像素可以包括光电传感器。 Alternatively, not all pixel includes a photosensor, for example, where a pixel may include a photoelectric sensor, or, for each pixel of about 1mm to about 2mm spacer arrangement may include a photosensor. 换句话说,必要时,光电传感器的密度可以进行控制,从而,对应的感测扫描线S1-Sn和感测信号线P1-Pm的数目也可以进行控制。 In other words, when necessary, the density of the photosensor can be controlled, so that, S1-Sn and the number of scanning lines detected sensing signal lines P1-Pm corresponding sense it can also be controlled.

感测元件QP具有三个端子:分别电气连接到控制电压线PSG和输入电压线PSD上的控制端和输入端,以及电气连接到传感器信号电容器CP和第二开关元件QS2上的输出端。 QP sensing element having three terminals: a control terminal are electrically connected to the input terminal and the control voltage line and the input voltage line PSG PSD, and an electrical output terminal connected to the capacitor CP of the sensor signal and the second switching element QS2. 感测元件QP产生光电流,其响应于向由非晶硅或多晶硅构成的感测元件QP的沟道(channel)的光照射。 QP sensing element generates a photocurrent in response to irradiation of the amorphous silicon or polysilicon QP sensing elements constituting a channel (channel) light. 该光电流流向传感器信号电容器CP和第二开关元件QS2,其由被施加到输入电压线PSD的输入电压VSD驱动。 The optical sensor signal current flows to the capacitor CP and a second switching element QS2, which is driven by the input voltage applied to the input line of the PSD voltage VSD.

传感器信号电容器CP电气连接在感测元件QP与控制电压线PSG之间,并且存储响应于来自感测元件QP的光电流的电荷,以维持预定的电压。 Sensor capacitor CP signal is electrically connected between the sensing element and a control voltage line QP PSG, and stores charge from the photocurrent in response to the sensing element of QP to maintain a predetermined voltage. 如果不必要,可以省略传感器信号电容器CP。 If necessary, the sensor signals can be omitted capacitor CP.

第二开关元件QS2具有三个端子:分别电气连接到感测扫描线S1-Sn其中一个(例如,Si)上、感测信号线P1-Pm其中一个(例如,Pj)上以及感测元件QP上的控制端、输出端和输入端。 A second switching element QS2 has three terminals: are electrically connected to the sensing scanning lines S1-Sn one (e.g., Si), the sensed signal where a line P1-Pm (e.g., Pj of) the sensing element and QP a control terminal, an input terminal and an output terminal. 当感测扫描线S1-Sn接收到用于导通第二开关元件QS2的电压时,第二开关元件QS2将由传感器信号电容器CP存储的电压、或者来自感测元件QP的光电流作为感测信号VP1-VPM输出到感测信号线P1-Pm。 When the sensing scanning lines S1-Sn receives a second switching element for turning on the voltage QS2, QS2 by the sensor signal stored in the capacitor CP of the second switching element voltage, current or light from the sensing element as the sensing signal QP VP1-VPM output to the sensing signal lines P1-Pm.

在上述示例性实施例中,第一开关元件QS1和第二开关元件QS2以及感测元件QP可以包含非晶硅或多晶硅TFT。 In the exemplary embodiment, the first switching element and second switching element QS1 and QS2 QP sensing element may comprise amorphous silicon or polysilicon TFT.

驱动电压发生器950产生LCD装置所需的多个电压,例如,分别用于导通/关断第一开关元件QS1和第二开关元件QS2的图像扫描导通电压Von和图像扫描关断电压Voff,以及输入电压VSD和控制电压VSG。 The driving voltage generator 950 generates a plurality of voltages required by the LCD device, e.g., respectively, for turning on / off the first switching element a second switching element QS1 and QS2 image scan-on voltage Von and turn-off voltage Voff image scanning , and an input voltage and a control voltage VSD VSG.

图像扫描器400电气连接到LC面板组件300的图像扫描线G1-Gn上,并且合成来自驱动电压发生器950的图像扫描导通电压Von和图像扫描关断电压Voff,以产生施加到图像扫描线G1-Gn上的图像扫描信号。 The image scanner 400 is electrically connected to the LC panel assembly of the image scanning lines G1-Gn 300, and the synthesized image from the driving voltage generator 950 scan-on voltage Von to the image scanning and the turn-off voltage Voff, is applied to the image to generate a scan line the image on the scanning signals G1-Gn.

数据驱动器500电气连接到LC面板组件300的数据线D1-Dm上,并且向数据线D1-Dm施加数据电压。 The data driver 500 is electrically connected to the LC panel assembly 300 of the data lines D1-Dm, and applies the data voltage to the data lines D1-Dm.

传感器扫描器700电气连接到LC面板组件300的感测扫描线S1-Sn上,并且合成来自驱动电压发生器950的图像扫描导通电压Von和图像扫描关断电压Voff并产生施加到感测扫描线S1-Sn上的感测扫描信号。 The scanner sensor 700 is electrically connected to the LC panel assembly sensing the scan lines S1-Sn 300, and the synthesized image from the driving voltage generator, and the scan-on voltage Von to the image scanning 950 off voltage Voff applied to the sensing and generating scan sensing scan signal on line S1-Sn.

感测信号处理器800电气连接到LC面板组件300的感测信号线P1-Pm上,并且接收从感测信号线P1-Pm输出的感测信号VP1-VPM,以执行预定的信号处理。 On the sensing signal processor 800 is electrically connected to the LC panel assembly sensing signal lines P1-Pm 300, the sensing and signal VP1-VPM receives the output from the sense signal lines P1-Pm, to perform a predetermined signal processing.

背光单元900靠近于LC面板组件300而放置,以向LC面板组件300提供光,并且包括多个灯。 The backlight unit 900 close to the LC panel assembly 300 disposed to provide light to the LC panel assembly 300, and includes a plurality of lamps.

信号控制器600控制图像扫描器400,数据驱动器500,传感器扫描器700,感测信号处理器800,背光单元900以及驱动电压发生器950。 The signal controller 600 controls the image scanner 400, a data driver 500, the sensor scanner 700, the sensing signal processor 800, the backlight unit 900 and a driving voltage generator 950.

图像扫描器400,数据驱动器500,传感器扫描器700或者感测信号处理器800可以经由驱动集成电路直接安装在LC面板组件300上,或者可以安装在柔性印刷电路薄膜上,以附连到采用载带封装(TCP)型组件中的LC面板组件300。 An image scanner 400, a data driver 500, a scanner 700 or a sensor sensing signal processor 800 via the drive IC may be directly mounted on the LC panel assembly 300, or may be mounted on a flexible printed circuit film employed to attach to the carrier LC panel assembly 300 with package (TCP) type components. 或者,图像扫描器400、数据驱动器500、传感器扫描器700或感测信号处理器800可以集成在LC面板组件300内。 Alternatively, the image scanner 400, a data driver 500, a scanner 700 or sensor sensing signal processor 800 may be integrated within the LC panel assembly 300.

另外,图像扫描器400,数据驱动器500,传感器扫描器700,感测信号处理器800,以及信号控制器600可以被实现为单芯片。 Further, the image scanner 400, a data driver 500, the sensor scanner 700, the sensing signal processor 800, and a signal controller 600 may be implemented as a single chip. 图像扫描器400,数据驱动器500,传感器扫描器700,感测信号处理器800,以及信号控制器600可以集成到单芯片中,由此减小安装空间并降低功耗。 An image scanner 400, a data driver 500, the sensor scanner 700, the sensing signal processor 800, and a signal controller 600 may be integrated into a single chip, thereby reducing the mounting space and power consumption. 当然,必要时,每个元件或在每个元件中使用的电路都可以安设在该单芯片之外。 Of course, if necessary, each of the elements or circuits for use in each element can be set up outside of the single chip.

现在将详细说明该LCD装置的显示操作和光电感测(photo sensing)。 The display operation will now be described in detail and a photoelectric sensing (photo sensing) of the LCD device.

向信号控制器600供给输入图像信号R、G和B,以及控制LCD装置的显示的输入控制信号。 A control signal input to the signal controller 600 is supplied the input image signals R, G and B, and the display control of the LCD device. 输入控制信号包括例如垂直同步信号Vsync,水平同步信号Hsync,主时钟MCLK,以及数据使能(enable)信号DE。 For example, input control signals include a vertical synchronization signal Vsync, a horizontal synchronization signal Hsync, a main clock MCLK, and a data enable (enable) signal DE. 从外部的图形控制器(未示出)提供输入控制信号。 Providing an input control signal from an external graphics controller (not shown). 在产生图像扫描控制信号CONT1和数据控制信号CONT2、并且响应于输入控制信号对适合于操作LC面板组件300的输入图像信号R,G和B进行处理之后,信号控制器600向图像扫描器400提供图像扫描控制信号CONT1,并且向数据驱动器500提供处理过的图像信号DAT和数据控制信号CONT2。 After generating the image scan control signal CONT1 and data control signals CONT2, and in response to the operation of the process suitable for LC panel assembly input image signals R 300, G, and B input to the control signal, the controller 600 provides signals to the image scanner 400 the image scan control signal CONT1, and provides the processed image signals DAT and the data control signals CONT2 to the data driver 500.

图像扫描控制信号CONT1包括用于指令图像扫描器400在电压Von时开始图像扫描的垂直同步开始信号STV,和用于在电压Von时控制图像扫描的输出的至少一个时钟信号。 The image scan control signal CONT1 includes instructions for an image scanner 400 in the vertical scanning start image voltage Von synchronization start signal STV, scan the image, and for outputting a control voltage Von at least one clock signal.

数据控制信号CONT2包括用于通知数据驱动器500开始水平周期的水平同步开始信号STH,用于指令数据驱动器500向数据线D1-Dm施加适当数据电压的负载信号LOAD,用于相对于公共电压Vcom反转(reverse)数据电压极性的反转控制电压RVS,以及数据时钟电压HCLK。 Data control signals CONT2 include a horizontal start notification data driver 500 horizontal period synchronization start signal STH, for instructing the data driver 500 applies a load signal LOAD appropriate data voltages to the data lines D1-Dm, with respect to the common voltage Vcom trans turn (reverse) data voltage polarity inversion control voltage RVS, voltage and a data clock HCLK.

数据驱动器500从信号控制器600接收用于像素行的处理过的图像信号DAT的包(packet),并响应于来自信号控制器600的数据控制信号CONT2,将这些处理过的图像信号DAT转换成模拟数据电压。 The data driver 500 receives a packet for the row of pixels processed image signal DAT (Packet) from the signal controller 600, in response to the data control signals CONT2 from the signal controller 600, these processed image signal DAT is converted into analog data voltage.

响应于来自信号控制器600的图像扫描控制信号CONT1,图像扫描器400向图像扫描线G1-Gn施加图像扫描导通电压Von,由此导通电气连接到图像扫描线G1-Gn上的第一开关元件QS1。 In response to a first control signal from the image scan control signal CONT1, image scanner 400 is applied to an image scanning on voltage Von to the image scanning lines G1-Gn 600, thereby electrically conducting connection to the image scanning lines G1-Gn of switching element QS1.

数据电压与施加到每个像素上的公共电压Vcom之间的差被表达为LC电容器CLC的充电电压,即像素电压。 The difference between the data voltage and the common voltage Vcom is applied to each pixel is expressed as a charged voltage of the LC capacitor CLC, i.e., a pixel voltage. 液晶分子的取向(orientation)取决于像素电压的幅度(magnitude),并且其取向决定穿过像素的光的极化(polarization)。 Liquid crystal molecules (Orientation) depends on the magnitude of the pixel voltage (magnitude), and which determines the orientation of the polarization of light passing through the pixels (polarization).

在第一开关元件QS1的导通时间内,数据驱动器500将数据电压施加到相应的数据线D1-Dm上,该导通时间被称作“一个水平周期”或“1H”,它等于水平同步信号Hsyc和数据使能信号DE的一个周期。 A first switching element QS1 in the conduction time, the data driver 500 applies data voltages to the corresponding data lines D1-Dm, the conduction time is called "one horizontal period" or "IH", which is equal to the horizontal synchronization Hsyc signal and a data enable signal DE, a cycle. 接着,数据电压经由导通的第一开关元件OS1被顺序地施加给相应的像素。 Next, the data voltage is sequentially applied to the corresponding pixels via the first switching element is turned OS1.

通过重复上述过程,在一个帧内,所有的图像扫描线G1-Gn都被顺序地提供图像扫描导通电压Von,由此将数据电压施加到所有像素上。 By repeating the above process, in a frame, all image scanning lines G1-Gn are scanned to provide an image sequentially on voltage Von, thereby applying the data voltages to all pixels. 当在完成一帧后开始下一帧时,被施加到数据驱动器500上的反转控制信号(inversioncontrol signal)RVS被控制成使数据电压的极性反转(这被称作“帧反转”)。 When the next frame starts after one frame is completed, the data driver is applied to the inversion control signal (inversioncontrol signal) on 500 RVS is controlled such that the data voltage polarity inversion (which is called "frame inversion" ). 反转控制信号RVS也可以被控制成使一帧中在数据线内流动的数据电压的极性反转,例如列反转,线反转,或者使一个包(packet)内的数据电压的极性反转,例如列反转,点反转。 The inversion control signal RVS may be controlled such that the polarity of a data voltage flowing in the data line, for example column inversion, line inversion, or to a packet (Packet) in the data voltage electrode reversal, for example column inversion, dot inversion.

响应于来自信号控制器600的感测控制信号CONT3,传感器扫描器700将图像扫描导通电压Von顺序施加到感测扫描线S1-Sn上,并且感测信号处理器800读出被施加到感测信号线P1-Pm上的感测信号VP1-VPM。 In response to the sense control signal CONT3, the sensor controller 600 signals from the scanner 700 scans an image on voltage Von is sequentially applied to the sensing scanning lines S1-Sn, and the sensing signal processor 800 is applied to the read sense VP1-VPM sensing signal on the sensing signal lines P1-Pm. 在对读出的感测信号VP1-VPM放大并滤波后,感测信号处理器800将处理过的信号转换成数字信号,以便传输给信号控制器600。 After the sensing signal read out VP1-VPM amplified and filtered, the sensing signal processor 800 converts the processed signal into a digital signal for transmission to the signal controller 600. 信号控制器600通过适当地处理该数字信号来确定接触的位置以及是否存在着接触(例如,触摸位置以及有无触摸),然后,信号控制器600将关于接触位置的信息传输给外部装置。 The signal controller 600 to determine a contact by appropriately processing the digital signal, and whether there was a contact location (e.g., presence or absence of a touch and a touch position), and then, the signal controller 600 transmits information about the contact position to the external device. 外部装置接着将基于该信息的图像信号传输给LCD装置。 Then the external apparatus transmits an image signal based on the information to the LCD device.

现在,参看图3至5详细说明依照本发明示例性实施例的LCD装置的结构。 Referring now to FIGS. 3 to 5 specify the structure of the LCD device according to an exemplary embodiment of the present invention.

图3是依照本发明示例性实施例的LCD装置的示例性布局图,而图4和5分别是沿着图3中的线IV-IV'和V-V'所取的截面图。 FIG 3 is a layout view of an exemplary embodiment of an LCD device according to an exemplary embodiment of the present invention, and FIGS. 4 and 5 are sectional views taken along line IV-IV in FIG 3 'and V-V'.

依照本发明示例性实施例的LCD装置包括TFT阵列面板100,公共电极面板200,以及夹在TFT阵列面板100与公共电极面板200之间的LC层3。 LCD device according to an exemplary embodiment of the present invention includes a TFT array panel 100, a common electrode panel 200, and sandwiched between the TFT array panel 100 and the LC layer 200 between the common electrode panel 3.

现在,参看图3至5详细说明TFT阵列面板100。 Referring now to Figures 3 to 5 illustrate details of the TFT array panel 100.

图像扫描线121,存储电极线131,感测扫描线127和控制电压线129放置在绝缘基板110例如透明玻璃上。 The image scan line 121, the storage electrode lines 131, sense line 127 and a control voltage scan line 129 is placed on the insulating substrate 110 such as transparent glass.

图像扫描线121、感测扫描线127和控制电压线129基本上沿LCD装置的横向延伸并彼此分开,并且分别传输图像扫描信号、感测扫描信号和控制信号VSG,而且分别包括控制电极124、128和126。 The image scan line 121, scan lines 127 and sense lines 129 control the voltage of the LCD device extending substantially transversely and separated from each other and respectively transmitting image scanning signals, sensing the VSG scan signals and control signals, respectively, and including a control electrode 124, 128 and 126. 控制电压线129包括从控制电极126延伸的膨胀部分(expansion)123。 Includes a control voltage line 129 from the expansion portion of the control electrode 126 extends (expansion) 123.

每个存储电极线131基本上沿LCD装置的横向延伸,并且包括形成存储电极133的突起部分(protrusion)。 Each storage electrode line 131 extending laterally along substantially the LCD device, and includes a storage electrode 133 formed of the protruding portion (protrusion). 存储电极线131被供给预定电压,例如公共电压,该预定电压被施加到LCD装置的公共电极面板200上的公共电极270。 A common electrode panel 131 is supplied to the storage electrode line predetermined voltage such as a common voltage, the predetermined voltage is applied to the LCD device 270 on the common electrode 200.

图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129例如由含Al金属如Al和Al合金,含Ag金属如Ag和Ag合金,含Cu金属如Cu和Cu合金,含Mo金属如Mo和Mo合金,Cr,Ti或Ta制成。 The image scan line 121, sensing scanning lines 127, the storage electrode lines 131 and the control voltage line 129, for example, by the Al-containing metal such as Al and Al alloy, Ag containing metal such as Ag and Ag alloy, Cu containing metal such as Cu and Cu alloy, containing Mo metals such as Mo and Mo alloy, Cr, Ti, or Ta formed. 图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129可以具有多层结构,该结构包括具有不同物理性质的两层膜。 The image scan line 121, sensing scanning lines 127, a storage electrode lines 131 and the control voltage line 129 may have a multilayer structure, the structure comprising two films having different physical properties. 该两层膜中的一层例如由低阻抗金属,包括含Al金属、含Ag金属或含Cu金属制成,用于减小图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129内的信号延迟或电压降。 The two-layer film, for example, a low-resistance metal layer comprising Al-containing metal, Ag containing metal, or made of Cu-containing metal for reducing image scan line 121, scan line 127 sensing, control and storage electrode lines 131 signal delay or voltage drop in the voltage line 129. 该两层膜中的另一层例如由具有与其它材料如氧化铟锡(ITO)或氧化铟锌(IZO)有良好物理、化学以及电学接触性质的材料制成,例如含Mo金属,Cr,Ta或Ti。 The two-layer film made of a material with another layer, for example, with other materials such as indium tin oxide (ITO) or indium zinc oxide (IZO) has good physical, chemical, and electrical contact properties such as Mo containing metal, Cr, Ta or Ti. 该两层膜组合的例子包括下Cr膜和上Al-Nd合金膜,以及下Al膜和上Mo膜。 Examples of the combination of two films include a lower Cr film and an upper Al-Nd alloy film, and a lower Al film and an upper Mo film.

另外,图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129的侧面相对于绝缘基板110的表面倾斜,并且其倾斜角处于约30度与约80度之间的范围内。 Further, the image scanning lines 121, sensing scanning lines 127, a control voltage line 131 and the side surface of the storage electrode line 129 with respect to the inclined surface of the insulating substrate 110, and the inclination angle is in a range between about 30 degrees and about 80 degrees .

例如由氮化硅SiNx制成的绝缘层140设置在图像扫描线121,感测扫描线127,存储电极线131,控制电压线129,控制电极124、128和126,存储电极,以及绝缘基板110的暴露部分上。 An insulating layer 140 made of silicon nitride SiNx formed is provided in an image scan line 121, sensing scanning lines 127, a storage electrode line 131, a control voltage line 129, control electrodes 124, 128 and 126, the storage electrode, and the insulating substrate 110 the exposed portion.

例如由氢化的非晶硅(缩写为“a-Si”)或多晶硅制成的半导体条纹(semiconductor stripe)151和半导体岛(semiconductor island)156、158、159设置在绝缘层140的选定部分上。 For example, a hydrogenated amorphous silicon (abbreviated to "a-Si") or polycrystalline silicon semiconductor stripe (semiconductor stripe) 151 and a semiconductor island (semiconductor island) 156,158,159 disposed on selected portions of the insulating layer 140 . 每个半导体条纹151基本上沿LCD装置的纵向延伸,并具具有朝向控制电极124分支出来的突起部分154和从那里延伸的膨胀部分157。 Each semiconductor stripe 151 extends longitudinally along substantially the LCD device, having a projecting portion 154 and having a control electrode 124 branched out toward the expanded portion 157 and extending therefrom. 半导体条纹151在图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129附近变宽,以使半导体条纹151覆盖着图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129的大部分区域。 The semiconductor stripes 151 in the image scan line 121, sensing scanning lines 127, a storage electrode lines 131 and the control voltage line 129 near the wider, so that the semiconductor stripe 151 covers the image of the scan line 121, sensing scanning lines 127, a storage electrode lines 131 and most of the control voltage line region 129.

例如由硅化物或重掺杂n型杂质例如磷(phosphorous)的n+氢化a-Si制成的欧姆接触条纹161和欧姆接触岛162、164、165、166、168设置在半导体条纹151上。 For example, a silicide or a heavily doped n-type impurity such as phosphorous (phosphorous) an n + ohmic contact stripes 161 and ohmic contact islands made of hydrogenated a-Si 162,164,165,166,168 disposed on the semiconductor stripe 151. 每个欧姆接触条纹161具有突起部分163,并且突起部分163和欧姆接触岛165成对地设置在半导体条纹151的突起部分154上。 Each ohmic contact stripe 161 has a projecting portion 163 and the projecting portion 163 and the ohmic contact islands 165 are arranged in pairs on the protrusion portion 154 of the semiconductor stripes 151. 另外,欧姆接触岛162、164和欧姆接触岛166、168分别成对地设置在半导体岛156和158上。 Further, the ohmic contact islands 162 and the ohmic contact islands 166 are arranged in pairs on the semiconductor islands 156 and 158.

半导体条纹151,半导体岛156、158和159,欧姆接触条纹161,以及欧姆接触岛162、164、165、166和168的侧面相对于绝缘基板110的表面倾斜,并且其倾斜角例如处于约30度到约80度的范围内。 The semiconductor stripes 151, 156, 158 and the semiconductor islands 159, the ohmic contact stripes 161 and ohmic contact islands 162,164,165,166 side surface 168 and the surface is inclined with respect to the insulating substrate 110, and the inclination angle is about 30 degrees e.g. in the range of about 80 degrees.

数据线171,输入电压线179a和感测信号线179b,输出电极174、175和输入电极176设置在欧姆接触条纹161,欧姆接触岛162、164、165、166和168,以及绝缘层140之上。 Data lines 171, the input voltage line 179a and sense line 179b signal, the input electrode and the output electrode 174, 176 disposed on the ohmic contact stripes 161, the ohmic contact islands 162,164,165,166 and 168, and the insulating layer 140 .

数据线171,输入电压线179a和感测信号线179b基本上沿纵向延伸,并与图像扫描线121,感测扫描线127,存储电极线131以及控制电压线129交叉,并且分别传输数据电压,传感输入电压和感测信号。 Data lines 171, the input voltage line 179a and sense line 179b signal substantially extends longitudinally, and 121, sensing scanning lines 127, the storage electrode lines 131 and the control voltage line 129 and the image scanning lines intersect, respectively, and transmit data voltages, sensing the input voltage and the sensed signal.

每个输出电极175包括与一个存储电极133相重叠的膨胀部分177。 Each output electrode 175 includes a storage electrode 133 overlaps the expansion portion 177. 包括突起部分的数据线171的每个纵向部分形成面向输出电极175的端部的输入电极173。 Each longitudinal portion 171 includes a protruding portion is formed a data line output electrode facing the input electrode 175 of the end portion 173. 控制电极124,输入电极173,以及输出电极175连同半导体条纹151的突起部分154形成具有沟道(channel)的TFT,该沟道设置在输入电极173与输出电极175之间的突起部分154上。 A control electrode 124, an input electrode 173, and an output electrode 175 of the semiconductor stripes 151 along with the protruding portion 154 formed of a TFT having a channel (channel) of the channel portion 154 is provided on the protrusion 175 between the input electrode and the output electrode 173. 这样的TFT例如用作第一开关元件QS1。 Such for example, as a first switching element TFT QS1.

每个输入电压线179a包括纵向部分和横向部分,并且包含有突起部分的横向部分的一部分形成面向输出电极174的端部的输入电极172。 Each input voltage line 179a includes a longitudinal portion and a transverse portion, and a transverse portion comprising a portion of the protruding portion facing the end portion of the input electrode 174 of the output electrode 172 is formed. 控制电极126,输入电极172和输出电极174连同半导体岛156形成具有沟道的TFT,该沟道设置在输入电极172与输出电极174之间的半导体岛156上。 A control electrode 126, the input electrode 172 and output electrode 174 along with a semiconductor island 156 form a TFT having a channel, the channel on the semiconductor island 156 disposed between the input electrode 172 and output electrode 174. 这样的TFT用作感测元件QP。 Such a TFT is used as the sensing element QP.

感测元件QP的输出电极174和第二感测元件QS2的输入电极176彼此电气连接。 QP sensing element 174 and a second output electrode of the sensing element QS2 input electrode 176 electrically connected to each other. 感测信号线179b包括朝着输入电极176突起的输出电极178。 Sensing signal lines 179b includes an output electrode 176 projecting toward the input electrode 178. 每对输入电极176和输出电极178相互分开,并且相对于控制电极128彼此相对地设置。 Input electrode 176 and output electrode 178 of each pair are separated from each other and relative to the control electrode 128 disposed opposite to each other. 控制电极128,输入电极176,和输出电极178连同半导体岛158形成具有沟道的TFT,该沟道设置在输入电极176和输出电极178之间的半导体岛158上。 A control electrode 128, an input electrode 176, and the output electrode 178 along with a semiconductor island 158 form a TFT having a channel, the channel on the semiconductor island 158 disposed between the input electrode 176 and output electrode 178. 这样的TFT用作第二开关元件OS2。 Such a TFT is used as a second switching element OS2.

每个输出电极174具有与每个控制电压线129的膨胀部分123相交叠的膨胀部分174a,并且感测信号电容器CP通过交叠膨胀部分123与174a而形成。 Each output of each electrode 174 has a control voltage line 129 is expanded portion 123 overlaps the expanded portion 174a, and the sensing capacitor CP signal is formed by overlapping the expansion section 123 and 174a.

数据线171,输入电压线179a,感测信号线179b,输出电极174、175和178,以及输入电极172、173和176例如由难熔金属如Cr、Mo、Ti、Ta或其合金制成。 Data lines 171, the input voltage line 179a, 179b sense signal lines, output electrodes 174, 175 and 178, and the input electrode 172, 173 and 176, for example, by a molten hard metal such as Cr, Mo, Ti, Ta or an alloy thereof. 然而,它们也可以具有包括低阻抗膜(未示出)和良好接触膜(未示出)的多层结构。 However, they may also have a low impedance comprises a film (not shown) and a good contact film multilayer structure (not shown). 该多层结构组合的例子包括下Mo膜,中间Al膜和上Mo膜,以及下Cr膜和上Al-Nd合金膜以及下Al膜和上Mo膜的上述组合。 Examples of the multilayer structure comprising a combination of a lower Mo film, an intermediate Al film and an upper Mo film, and a lower Cr film and an upper Al-Nd alloy film and the Al film and the composition on the Mo film.

类似于图像扫描线121和感测扫描线127,存储电极线131和控制电压线129,数据线171,输入电压线179a,感测信号线179b,输出电极174、175和178以及输入电极172、173和176具有锥形侧面,并且其倾斜角处于约30度到约80度的范围内。 Similar to the image scanning lines 121 and the sensing scanning lines 127, the storage electrode lines 131 and the control voltage line 129, data line 171, the input voltage line 179a, 179b sense signal lines, output electrodes 174, 175 and 178 and the input electrode 172, 173 and 176 has a tapered side surface, and the inclination angles thereof range from about 30 degrees to about 80 degrees.

欧姆接触条纹161和欧姆接触岛162、164、165、166、168夹于在下的半导体条纹151和半导体岛156、158、159与在上的数据线171,输入电压线179a,感测信号线179b,输出电极174、175、178,以及输入电极172、173、176之间,以降低其间的接触阻抗。 The ohmic contact stripes 161 and ohmic contact islands 162,164,165,166,168 sandwiched semiconductor stripes 151 and the lower semiconductor islands 156,158,159 and on the data line 171, the input voltage line 179a, the sensing signal line 179b , between the output electrodes 174,175,178, 172,173,176 and the input electrodes to reduce the contact resistance therebetween. 半导体条纹151包括未被数据线171和输出电极175覆盖的暴露部分,例如位于输出电极173和输出电极175之间的部分。 The semiconductor stripes 151 include exposed portions 175 are not covered with the data line 171 and the output electrode, for example, the portion between the electrode 173 and the output electrode 175 on the output. 尽管半导体条纹151在大部分位置处比数据线171窄,然而半导体条纹151的宽度在上述的图像扫描线121和感测扫描线127、存储电极线131和控制电压线129附近变得较大,从而提供光滑的表面轮廓(profile),由此避免数据线171的断连。 Although the semiconductor stripes 151 are narrower than at the position most data line 171, but semiconductor stripe 151 of width 127, 131 and the storage electrode lines 129 near the control voltage line becomes larger in the above-described image scanning lines 121 and the sensing scanning lines, thereby providing a smooth surface contour (profile), whereby the data line 171 to avoid disconnection.

钝化(passivation)层180设置在数据线171,输入电压线179a,感测信号线179b,输出电极174、175和178,输入电极172、173和176,以及半导体条纹151的暴露部分上。 Passivation (passivation) layer 180 is disposed on the data line 171, the input voltage line 179a, 179b is exposed sensing signal lines, output electrodes 174, 175 and 178, 172, 173 and the input electrode 176, the semiconductor stripes 151 and the upper portion. 有机绝缘层187设置在该钝化层上。 The organic insulating layer 187 is disposed on the passivation layer. 钝化层180例如由无机绝缘体如氮化硅或氧化硅制成,并且有机绝缘层187例如由具有良好平坦性质的光敏有机材料制成。 The passivation layer 180 made of an inorganic insulator such as silicon nitride or silicon oxide is made of, for example, and the organic insulating layer 187 is made of a flat photosensitive organic material having good properties. 在这种情形下,有机绝缘层187的表面具有交替突起和凹陷的图案,这种图案也包括在反射电极194上,以最大化反射效率。 In this case, the surface of the organic insulating layer 187 having a pattern of alternating projections and depressions, such a pattern is also included in the reflective electrode 194, to maximize the reflection efficiency.

钝化层180和有机绝缘层187具有暴露输出电极175的膨胀部分177的接触孔185。 Passivation layer 180 and the organic insulating layer 187 having contact holes 177 of the expansion portion 175 of the output electrode 185 is exposed. 这些接触孔185可以具有多边形或圆形的形状。 The contact hole 185 may have a polygonal or circular shape. 接触孔185的侧面具有例如范围为约30度到约85度的倾斜角,或者具有阶梯形(step form)。 Side contact hole 185 has, for example in the range of from about 30 degrees to about 85 degrees inclination angle, or a stepped (step form).

像素电极190设置在有机绝缘层187上。 The pixel electrode 190 is disposed on the organic insulating layer 187. 像素电极190包括透明电极192和反射电极194。 The pixel electrode 190 includes a transparent electrode 192 and a reflective electrode 194. 透明电极192例如由透明导体如ITO或IZO制成,而反射电极194例如由不透明的反射导体如Ag或Ag合金、或者Al或Al合金制成。 The transparent electrode 192 such as ITO or IZO, for example, made of a transparent conductor, and the reflective electrode 194, for example, Ag or Ag alloy reflective conductor such as an opaque or made of Al or Al alloy. 像素电极190还可以包括接触辅助物(未示出),其例如由Mo或Mo合金、Cr、Ti或Ta制成。 The pixel electrode 190 may further include a contact assistant (not shown), for example made of Mo or Mo alloy, Cr, Ti or Ta. 该接触辅助物确保了透明电极192与反射电极194的接触性质,并且避免了透明电极192氧化反射电极194。 The contact assistants ensure contact properties of the transparent electrode 192 and the reflective electrode 194 and the transparent electrode 192 to avoid oxidation reflective electrode 194.

每个像素都具有透射区195和反射区RA。 Each pixel has a transmissive region 195 and reflective regions RA. 透射区195是省略了反射层194的区域,而反射区RA是存在着反射层194的区域。 Transmissive region 195 is a region of the reflective layer 194 is omitted, and the reflective area RA is an area of ​​the reflective layer 194 exists. 透射区195和反射区RA的显示单元(cell)间隙是不同的,这是由于在透射区195内有机绝缘层187被移除。 The display unit 195 transmissive area and the reflective area RA (cell) is different from the gap, since the organic insulating layer in the transmissive regions 195,187 are removed.

由于有机绝缘层187和像素电极190的移除而使半导体岛156暴露于环境光的通孔199设置在半导体岛156上。 Since the organic insulating layer 187 is removed so that the semiconductor islands 156 and the pixel electrode 190 is exposed to ambient light through hole 199 is provided on the semiconductor islands 156.

像素电极190通过接触孔185在物理上电气连接到输出电极175的膨胀部分177上,以便像素电极190接收来自输出电极175的数据电压。 The pixel electrode 190 through the contact hole 185 electrically connected to the physical expansion of the portion 177 of the output electrode 175 to the pixel electrode 190 receives a data voltage from the output electrode 175. 被供给数据电压的像素电极190协同公共电极270产生电场,其决定液晶层3内液晶分子的取向。 The data voltage supplied to the pixel electrode 190 synergistic common electrode 270 generates an electric field which determines the orientation of liquid crystal molecules of the liquid crystal 3 layer.

如上所述,像素电极190和公共电极270形成LC电容器CLC,其存储关断TFT之后施加的电压。 As described above, the pixel electrode 190 and the common electrode 270 form a LC capacitor the CLC, a voltage is applied after the shut-off of the TFT stored. 另外,与LC电容器CLC电气并联的存储电容器CST被提供用来增强电压存储容量。 Further, the storage capacitor CLC electrically connected in parallel with the LC capacitor CST is provided for enhancing the voltage storing capacity. 存储电容器CST通过将输出电极175的膨胀部分177与存储电极线131相交叠来实现。 By the storage capacitor CST expandable portion 177 and the output electrode 175 overlaps storage electrode line 131 is achieved. 或者,存储电容器CST可以通过将像素电极190与相邻的图像扫描信号线121相交叠来实现,然后省略存储电极线131。 Alternatively, the storage capacitor CST may be realized by the pixel electrode 190 and an adjacent image 121 overlaps the scanning signal line, and the storage electrode lines 131 are omitted. 在示例性实施例中,像素电极190与扫描线121和相邻的数据线171相交叠,以提高孔径比。 In an exemplary embodiment, the pixel electrode 190 and the scan line 121 and the adjacent data lines 171 overlap, to increase the aperture ratio.

接下来参看图3至5说明公共电极面板200。 Next, with reference to Figures 3 to 5 illustrate the common electrode panel 200.

公共电极面板200包括绝缘基板210,阻光构件(light blockingmember)220,滤色器230,外涂层(overcoat)250,以及公共电极270。 The common electrode panel 200 includes an insulation substrate 210, a light blocking member (light blockingmember) 220, the color filters 230, an overcoat (overcoat) 250, 270 and a common electrode. 阻光构件220被称作用于防止光泄漏的黑矩阵,其设置在绝缘基板210上,该绝缘基板210可以是例如透明玻璃。 The light blocking member 220 is referred to as a black matrix to prevent light leakage, which is disposed on the insulating substrate 210, the insulating substrate 210 may be, for example, transparent glass. 阻光构件220可以包括面向像素电极190的开口,并且可以具有与像素电极190基本上相同的平面形状。 The light blocking member 220 may include an opening facing the pixel electrode 190 and the pixel electrode 190 may have substantially the same planar shape. 或者,阻光构件220可以包括对应于数据线171的直线部分和对应于TFT的其它部分。 Alternatively, the light blocking member 220 may include linear portions corresponding to the data line 171 and the other portion corresponds to the TFT.

滤色器230设置在绝缘基板210上,并且基本上设置在被阻光构件220围住的区域内。 The color filter 230 is disposed on the insulating substrate 210, and substantially disposed in a region surrounded by the light blocking member 220. 滤色器230可以基本上沿像素电极190的纵向延伸。 The color filter 230 may extend longitudinally substantially along the pixel electrodes 190. 滤色器230可以表示诸如红、绿和蓝色的基色中的一个。 The color filter 230 may represent one such as red, green, and blue primaries.

用于防止滤色器230被暴露并提供平坦表面的外涂层250设置在滤色器230和阻光构件220上。 For preventing the color filters 230 from being exposed and provides a flat surface 250 of the outer coating layer is provided on the color filter 230 and the light blocking member 220. 例如由透明导电材料如ITO和IZO制成的公共电极270设置在外涂层250上。 For example a common electrode 270 is disposed a transparent conductive material such as ITO and IZO is formed on the outer coating 250.

用于偏振光的一对偏振器(未示出)附在LC面板组件300的TFT阵列和公共电极面板100和200的外表面上。 A pair of polarizers (not shown) attached to the outer surface of the LC panel assembly 300 and the TFT array panel 100 and a common electrode 200 for polarized light.

依照本发明示例性实施例的LCD装置包括光电传感器,其感测环境光和/或来自背光单元的光,以控制像素内光电传感器的感测信号(sensingsignal)。 LCD device according to an exemplary embodiment of the present invention includes a photosensor that senses ambient light and / or light from the backlight unit to control the sensing signal of the pixel photosensor (sensingsignal). 现在,参看图6A至8详细说明第一参考光电传感器PSA和第二参考光电传感器PSB。 Referring now to FIGS. 6A to be described in detail with reference to the first photosensor and the second reference photosensor PSA PSB.

图6A和6B是依照本发明示例性实施例的第一参考光电传感器PSA和第二参考光电传感器PSB的示意图。 6A and 6B is a schematic diagram of the first reference photosensor PSA exemplary embodiment and the second embodiment of the present invention with reference to the photosensor PSB. 图7是依照本发明示例性实施例的第一参考光电传感器PSA和第二参考光电传感器PSB位于LCD装置的LC面板组件300上的安装位置的示意图。 FIG 7 is a schematic diagram of the installation position of the LC panel assembly 300 on the first reference and the second reference photosensor PSA PSB photosensor according to an exemplary embodiment of the LCD device of the present invention. 图8是依照本发明示例性实施例的LCD装置的信号读出器和信号控制器的框图。 FIG 8 is a block diagram of the reader signal and a signal controller of an LCD device according to an exemplary embodiment of the present invention.

第一参考光电传感器PSA是设置在显示区域DA内的光电传感器,其电气连接到感测扫描线(sensing scanning line)上并包括上面参看图2所述的感测元件(sensing element)QP,开关元件QS2和传感器信号电容器(sensor signalcapacitor)CP,如图6A所示。 A first reference photosensor PSA is disposed within the display area photosensor DA, which is electrically connected to the sensing scanning lines (sensing scanning line) on the top and includes a reference to FIG sensing element (sensing element) QP claim 2, switch QS2 capacitor element and the sensor signal (sensor signalcapacitor) CP, shown in Figure 6A. 第一参考光电传感器PSA沿LC面板组件300内显示图像的显示区域DA的边缘来设置。 The first photo sensor reference LC panel assembly 300 along PSA edge of the display area DA displaying an image set. 第一参考光电传感器PSA还基本上平行于LC面板组件300的纵向长度来设置。 A first reference photosensor PSA is also substantially parallel to a longitudinal length of the LC panel assembly 300 is set. 然而,必要时,该参考光电传感器PSA可以设置在显示区域DA的外部,而且可以与显示区域DA内的光电传感器(以下称作“PSDA”)分开提供。 However, if necessary, the reference photosensor PSA may be disposed outside the display area DA, but also in the display area DA photosensor (hereinafter referred to as "PSDA") provided separately. 将第一参考光电传感器设置在LC面板组件300的显示区域DA的边缘处减小了由触摸引起的阴影的影响等。 The first reference photosensor provided at an edge of the display area DA of the LC panel assembly 300 reduces the effects of shadows caused by touch or the like.

第二参考光电传感器PSB包括感测元件QP,开关元件QS2和传感器信号电容器CP,如图6B所示。 A second reference photosensor PSB includes a sensing element QP, the switching element and the sensor signal QS2 capacitor CP, shown in Figure 6B. 第二参考光电传感器PSB设置在显示区域DA的外部,如图7所示,并连接到单独的感测扫描线上。 A second reference photosensor PSB disposed outside the display area DA, shown in FIG. 7, and is connected to a separate sensing scanning lines. 第二参考光电传感器PSB紧邻于显示区域的边缘设置,其中第一参考光电传感器PSA设置在该边缘处。 A second reference photosensor PSB disposed proximate to an edge of the display region, wherein the first reference photosensor PSA is provided at the edge. 第二参考光电传感器PSB被设置成基本上平行于第一参考光电传感器PSA。 A second reference photosensor PSB is arranged substantially parallel to the first reference photosensor PSA.

当从前面观看显示区域时,该第一参考光电传感器PSA和第二参考光电传感器PSB可以紧邻于LC面板组件300的上边缘或下边缘来设置,并且在任一情形下,第一参考光电传感器PSA连接到所选择的感测扫描线上,并且第二参考光电传感器PSB紧邻于第一参考光电传感器PSA被设置在显示区域DA的外部。 When viewed from the front of the display area, the first reference and the second reference photosensor PSA PSB photosensor can be proximate to the upper or lower edge of the LC panel assembly 300 to set, and In either case, the first reference photosensor PSA connected to the sensing of the selected scanning line, and the second reference photosensor PSB proximate to the first reference photosensor PSA is disposed outside the display area DA.

第一参考光电传感器PSA经由感测元件QP的开口接收环境光,并且经由背侧或感测元件QP附近的通孔接收来自背光单元900的光(以下被称作“LBU”)。 A first reference photosensor PSA via the sensing element QP openings receive ambient light and receives light from the backlight unit 900 (hereinafter referred to as "LBU") via the through-hole close to the backside of the sensing element or QP. 另外,第一参考光电传感器PSA接收由形成第一参考光电传感器PSA的层所引导(guide)的LBU,或者由该第一参考光电传感器PSA内部或外部的层以及该层周围的材料层所引导的LBU。 Further, the first reference photosensor PSA layer formed by the guide receiving a first reference photosensor PSA's (Guide) The LBU is, or guided by the first reference photosensor PSA layer, and an internal or external layer around the material layer the LBU. 第一参考光电传感器PSA响应于环境光和LBU的照射而产生感测信号。 Generating a first sensing signal in response to the reference photosensor PSA LBU of ambient light illumination.

第二参考光电传感器PSB表示对第一参考光电传感器PSA的布置进行替代的光电传感器的布置。 A second reference photosensor PSB representation of a first arrangement of the reference photosensor PSA arranged alternative photosensor. 第二参考光电传感器PSB阻挡感测元件QP受环境光的影响,这是由于阻光构件220和/或反射电极194使感测元件QP与环境光相隔离。 A second reference photosensor PSB barrier sensing element receiving QP influence of ambient light, which is due, and / or a reflective electrode 194 light blocking member 220 so that the sensing element is isolated from the ambient light and QP. 然而,第二参考光电传感器PSB经由背侧或感测元件QP附近的通孔,或者如上所述经由被引导的LBU接收LBU。 However, the second reference photosensor PSB or the back side via through holes near the sensing element sensing the QP, or received as described above via LBU LBU is guided. 另外,第二参考光电传感器PSB接收相对于第一参考光电传感器PSA更多的被反射电极194反射的LBU。 Further, the second reference photosensor PSB LBU received relative to the first reference photosensor PSA reflective electrode 194 is more reflective. 第二参考光电传感器PSB响应于LBU的照射而产生感测信号。 A second reference photosensor PSB generates a sensing signal in response to the irradiation of LBU.

依照本发明示例性实施例的LCD装置可以包括多个第一参考光电传感器PSA和第二参考光电传感器PSB,并且,类似于PSDA,该第一参考光电传感器PSA和第二参考光电传感器PSB连接到感测信号线P1-Pm上,以响应于感测扫描信号将感测信号VP1-VPM输出到感测信号线P1-Pm。 LCD device in accordance with an exemplary embodiment of the present invention may include a plurality of photosensors a first reference and a second reference photosensor PSA PSB, and, similarly PSDA, the first and second reference photosensor PSA PSB is connected to a photosensor reference the sensing signal lines P1-Pm, in response to the sensing signal to the scan sensing signal is output to the VP1-VPM sensing signal lines P1-Pm.

现在,参看图8和9说明处理来自第一参考光电传感器PSA和第二参考光电传感器PSB的感测信号的LCD装置。 Referring now to FIGS. 8 and 9 illustrate the processing apparatus from the first LCD photosensor reference and the second reference photosensor PSA PSB sensing signal.

图8是依照本发明示例性实施例的LCD装置的信号读出器和信号控制器的框图,而图9示出分别在图6A和6B中示出的第一参考光电传感器PSA和第二参考光电传感器PSB的感测信号。 FIG 8 is a block diagram of the reader signal and a signal controller of an LCD device according to an exemplary embodiment of the present invention in accordance with the embodiment, and FIG. 9 shows a first reference photosensor PSA are shown in FIGS. 6A and 6B and the second reference PSB photosensor sensing signal.

如图8所示,该LCD装置包括感测信号处理器800,信号控制器600,背光单元900和驱动电压发生器950。 8, the LCD device includes a sensing signal processor 800, the signal controller 600, the backlight unit 900 and a driving voltage generator 950.

感测信号处理器800包括感测信号调整器(regulator)810和模数转换器820。 A sensing signal processor 800 includes a sensing signal regulator (regulator) 810, and analog to digital converter 820. 感测信号调整器810经由感测信号线P1-Pm接收来自第一参考光电传感器PSA和第二参考光电传感器PSB的各个感测信号VP1-VPM,以便放大和/或滤波。 Sensing signal adjuster 810 receives the respective sensing signals VP1-VPM from the first reference and the second reference photosensor PSA PSB photosensor via the sensor signal lines P1-Pm, to amplify and / or filter. 模数转换器820将调整过的感测信号VP1'-VPM'转换成数字信号。 The analog to digital converter 820 adjusted sensing signal VP1'-VPM 'into a digital signal.

信号控制器600包括串联的信号输入单元610,操作单元620以及控制信号输出单元630,其可以用数字逻辑电路来实现。 The signal controller 600 includes a series of signal input unit 610, an operation unit 620 and a control signal output unit 630, which can be implemented with digital logic circuitry.

信号输入单元610处理来自模数转换器820的经过数字转换的感测信号DVP1-DVPM。 Input signal processing unit 610 DVP1-DVPM sensing signal from the AD converter 820 digitally converted. 换句话说,信号输入单元610求取经过数字转换的第一参考光电传感器PSA的感测信号DVP1-DVPM的平均值,以产生第一平均感测信号VSA,并求取经过数字转换的第二参考光电传感器PSB的感测信号DVP1-DVPM的平均值,以产生第二平均感测信号VSB。 In other words, the signal input unit 610 obtains the average value of the sensing signal via a first reference digital conversion photosensor DVP1-DVPM the PSA to generate a first sensing signal average the VSA, and after obtaining a second digital conversion the reference average value photosensor PSB DVP1-DVPM sensing signal to generate a second sensing signal average VSB. 另外,信号输入单元610可以执行数字滤波。 Further, the signal input unit 610 may perform digital filtering. 如上所述,对于多个第一参考光电传感器PSA和第二参考光电传感器PSB使用第一平均感测信号VSA和第二平均感测信号VSB防止了相对于为单个第一参考光电传感器PSA和第二参考光电传感器PSB而产生的感测信号的感测信号的不均匀性。 As described above, a plurality of first reference and the second reference photosensor PSA PSB photosensor sensing signal using the first average and the second average VSA sensing signal VSB is prevented with respect to a first reference to a single photosensor and PSA unevenness sensing signal sensed second reference signal generated by the photosensor PSB.

操作单元620响应于来自信号输入单元610的第一平均感测信号VSA和第二平均感测信号VSB,产生第一至第三状态判断信号V1、V2和V3。 The operation unit 620 in response to the sensing signal VSA first average and the second average sensing signal from the VSB signal input unit 610 generates the first to third status determination signals V1, V2 and V3. 如图9所示,第一状态判断信号V1由从最大信号Vmax中减去第一平均感测信号VSA来定义,第二状态判断信号V2由第一平均感测信号VSA与第二平均感测信号VSB之间的差值来定义,并且第三状态判断信号V3由从第二平均感测信号VSB中减去最小值Vmin来定义。 As shown, the first state judgment signal V1 9 defined by subtracting the average of the first sensing signal from the VSA Vmax maximum signal, the second signal V2 is determined by the state of the sensing signal first average and the second average sensing VSA VSB difference between the signals is defined, and the third state determination signal V3 is defined by subtracting the minimum value Vmin from the average of the second sensing signal in VSB. 最大信号Vmax和最小信号Vmin由感测信号调整器810和模数转换器820确定,并且例如,最大信号Vmax和最小信号Vmin的值被允许输入到操作单元620中。 Maximum signal Vmax and Vmin is determined by the minimum signal sensed analog to digital converter 810 and a signal conditioner 820, and for example, the maximum signal value Vmax and Vmin is the minimum allowed signal input to the operation unit 620.

第一状态判断信号V1取决于环境光的强度和灯的亮度,并且第一状态判断信号V1的值随着环境光的强度变大而变小。 The first state judgment signal V1 depending on the ambient light intensity and brightness of the lamp, and the first signal state determination value V1 with the intensity of the ambient light increases and decreases. 第二状态判断信号V2取决于环境光的强度和灯的亮度,并且第二状态判断信号V2的值随着环境光的强度变大而变大。 A second status signal V2 is determined depending on the ambient light intensity and brightness of the lamp, and a second state determination of the value of the signal V2 as the intensity of the ambient light increases and becomes larger. 第三状态判断信号V3随着灯的亮度变大而变大。 A third state determination signal V3 becomes larger as the luminance of the lamp becomes large.

操作单元620基于第一至第三状态判断信号V1、V2和V3,响应于LCD装置的环境光的强度而确定感测状态。 The operation unit 620 determines signals V1, V2 and V3 based on the first to the third state, the state is determined in response to the sensed intensity of ambient light LCD device. 换句话说,通过比较第一至第三状态判断信号V1、V2和V3与预定设定值,操作单元620可以确定LCD装置位于室外还是室内,或者虽然在室内,它是亮还是暗。 In other words, the signal V1 is determined by comparing the first to the third state, V2 and V3 with a predetermined setting value, the operation unit 620 may determine that the LCD device is located indoors or outdoors, or indoors while it is bright or dark. 必要时,感测状态可以被确定为两个或更多可能状态中的一个,并且这样的状态判断例子将参看图10和11来描述。 If necessary, the sensing state may be determined to be two or more possible states a, and this state is determined with reference to the example of FIGS. 10 and 11 will be described.

图10是依照本发明示例性实施例的用于判断LCD装置的感测状态的一个示例性流程图,而图11是依照本发明示例性实施例的用于判断LCD装置的感测状态的另一个示例性流程图。 FIG 10 is a flowchart of an exemplary LCD sensed condition determination apparatus according to an exemplary embodiment of the present invention is applied, and FIG. 11 is an exemplary embodiment in accordance with exemplary embodiments of the present invention for sensing the state of the LCD device further determination an exemplary flow chart.

在图10的流程图中,操作单元620从以0和1表示的两个可能状态中确定感测状态SM。 In the flowchart of FIG. 10, the operation unit 620 determines from the sensed condition SM to two possible states 0 and 1 represented.

首先,操作单元620将感测状态SM初始化为“1”(S10),随后,比较第一状态判断信号V1与第一预定值Vth1,并且比较第二状态判断信号V2与第二预定值Vth2(S20)。 First, the operation unit 620 initializes the sensed state SM is "1" (S10), and then comparing the first signal V1 and the state determining Vth1 is a first predetermined value, and compares the second state judgment signal V2 with a second predetermined value Vth2 is ( S20). 作为比较结果,响应于第一状态判断信号V1小于第一预定值Vth1且第二状态判断信号V2大于第二预定值Vth2,操作单元620将感测状态SM变成“0”(S30),否则将感测状态SM保持为“1”。 As a result of the comparison, a first state in response to the decision signal V1 is less than a first predetermined value Vth1 and the second state judgment signal V2 is greater than a second predetermined value Vth2 is, the operation unit 620 sensing the state of SM into "0" (S30), otherwise the sensed state SM remains "1."

当感测状态SM为“0”时,操作单元620比较第二状态判断信号V2与第三预定值Vth3,并且比较第三状态判断信号V3与第四预定值Vth4(S40)。 When the sensed state SM is "0", the operation state judgment unit 620 compares the second signal V2 and a third predetermined value Vth3, and comparing the third and the fourth state determination signal V3 predetermined value Vth4 (S40). 作为比较结果,响应于第二状态判断信号V2小于第三预定值Vth3且第三状态判断信号V3小于第四预定值Vth4,将感测状态SM变成“1”(S10),否则将感测状态SM保持为“0”。 As a result of the comparison, a second state in response to the determination signal is less than a third predetermined value V2 Vth3 and a third state determination signal V3 less than the fourth predetermined value Vth4, the sensing state SM becomes "1" (S10), otherwise sensed SM status remains at "0."

在上述情形下,当感测状态SM为“1”时,环境光的强度小,或者环境光与LBU之间的差小,这例如对应于室内亮度。 In the above case, when the sensing state SM is "1", the intensity of ambient light, small or the difference between ambient light and LBU is, for example, which corresponds to the brightness of the room. 当感测状态SM为“0”时,环境光的强度大,或者环境光与LBU之间的差大,这例如对应于室外亮度。 When the sensed state SM is "0", the intensity of ambient light is large, or a large difference between the ambient light and LBU is, for example, which corresponds to the outdoor brightness.

操作单元620将感测状态SM的判断结果发送到控制信号输出单元630。 The operation unit 620 transmits the determination result to the SM sensed condition control signal output unit 630. 控制信号输出单元630响应于感测状态SM而控制背光单元900、驱动电压发生器950以及感测信号调整器810。 And a backlight control unit 900, the driving voltage generator 950, and a sensing signal conditioner unit 630 outputs a control signal 810 in response to the sensed condition SM.

例如,控制信号输出单元630将背光控制信号BLC传输到背光单元900,以便控制背光单元900的灯的亮度。 For example, the control signal output unit 630 BLC backlight control signal transmitted to the backlight unit 900 to control the brightness of the lamp of the backlight unit 900. 这样,例如,对于感测状态SM“0”,关断背光单元900,而对于感测状态SM“1”,导通背光单元900。 Thus, for example, for a sensed condition SM "0", the backlight unit 900 is turned off, and for sensing the state of SM "1", the backlight unit 900 is turned on.

另外,控制信号输出单元630将增益控制信号AG传输到感测信号调整器810,以便控制感测信号调整器810的增益。 Further, the control signal output unit 630 is transmitted to the gain control signal AG sensing signal adjuster 810, so as to control the gain of the sensing signal conditioner 810. 从而,调整来自第一和第二参考光电传感器PSA和PSB的感测信号VP1-VPM的幅值,以便将其传输到模数转换器820。 Thus, adjust the amplitude of the signal from the sensing VP1-VPM first and second reference photosensor PSA and PSB in order to transfer it to the analog to digital converter 820.

控制信号输出单元630将电压控制信号SG传输到驱动电压发生器950,由此改变控制电压VSG的电平。 Control signal output unit 630 the voltage control signal SG transmitted to the driving voltage generator 950, thereby changing the level of the control voltage VSG. 控制电压VSG的电平的变化改变了来自第一和第二参考光电传感器PSA和PSB以及PSDA的感测信号VP1-VPM的幅值。 Change in the level of the control voltage VSG of the amplitude of the sensing signal is changed VP1-VPM from the first and second reference photosensor PSA and PSB and the PSDA.

这样,由于响应于感测状态SM来控制背光单元900、驱动电压发生器950和感测信号调整器810,通过接收具有合适幅值的感测信号VP1-VPM,可以准确地确定响应于触摸的接触信息。 Thus, since the response to a sensed condition SM to control the backlight unit 900, the driving voltage generator 950 and the sense signal conditioner 810, by receiving the sensing signal having a suitable amplitude VP1-VPM, it is possible to accurately determine the response to a touch of access to information.

或者,在图11的流程图中,操作单元620从诸如“0”、“1”和“2”的三个可能性中确定感测状态SM。 Alternatively, in the flowchart of FIG. 11, the operation unit 620 determines from the sensed condition SM, such as "0", "1" and "2" in three possibilities.

首先,操作单元620将感测状态SM初始化为“2”(S50)。 First, the operation unit 620 initializes the sensed condition SM "2" (S50). 然后,操作单元620比较第二状态判断信号V2与第一预定值Vthi1,以便响应于第二状态判断信号V2小于第一预定值Vthi1,将感测状态SM保持为“2”。 Then, the operation state judgment unit 620 compares the second signal with a first predetermined value V2 Vthi1, in response to a first predetermined value smaller than the determination Vthi1 signal V2 to the second state, the sensing state SM remains "2." 响应于第二状态判断信号V2大于第一预定值Vthi1,操作单元620比较第二状态判断信号V2与第二预定值Vthi2(S60)。 Determining a second state in response to the signal V2 is greater than a first predetermined value Vthi1, the operation state judgment unit 620 compares the second signal with a second predetermined value V2 Vthi2 (S60). 作为操作(S60)的比较结果,响应于第二状态判断信号V2小于第二预定值Vthi2,操作单元620将感测状态SM保持为“2”。 As a result of the comparison operation (S60), and a second state in response to the determination signal V2 is smaller than a second predetermined value Vthi2, the operation unit 620 SM sensed condition remains "2." 响应于第二状态判断信号V2大于第二预定值Vthi2,操作单元620比较第一状态判断信号V1与第三预定值Vthi3(S65)。 Determining a second state in response to the signal V2 is greater than a second predetermined value Vthi2, the operation state judgment unit 620 compares the first signal with a third predetermined value V1 Vthi3 (S65). 作为操作(S65)的比较结果,响应于第一状态判断信号V1小于第三预定值Vthi3,操作单元620将感测状态SM变成“0”(S70)。 As a result of the comparison operation (S65) in response to a first state judgment signal V1 is less than a third predetermined value Vthi3, the operation unit 620 sensing the state of SM into "0" (S70). 响应于第一状态判断信号V1大于第三预定值Vthi3,操作单元620将感测状态SM变成“1”(S80)。 A first state in response to the decision signal V1 is greater than a third predetermined value Vthi3, the operation unit 620 sensing the state of SM becomes "1" (S80).

当感测状态为“0”时,比较第二状态判断信号V2与值Vths1(S75)。 When the sensed state is "0", the second comparator V2 and the state determination signal value Vths1 (S75). 响应于第二状态判断信号V2小于值Vths1,将感测状态SM变成“2”,并且响应于第二状态判断信号V2大于值Vths1,将感测状态SM保持为“0”。 In response to the second state judgment signal V2 is less than the value Vths1, the sensing state SM becomes "2", and a second state in response to the determination signal V2 is greater than the value Vths1, the sensing state SM remains "0."

当感测状态为“1”时,比较第二状态判断信号V2与值Vthw1(S85),响应于第二状态判断信号V2小于值Vthw1,将感测状态SM变成“2”,并且响应于第二状态判断信号V2大于值Vthw1,比较第一状态判断信号V1与值Vthw2(S90)。 When the sensed state is "1", the second comparator V2 and the state determination signal value Vthw1 (S85), a second state in response to the determination signal value is less than V2 Vthw1, the sensing state SM becomes "2", and in response to determining a second status signal V2 is greater than the value Vthw1, comparing a first value V1 and the status decision signal Vthw2 (S90). 作为操作S90的比较结果,响应于第一状态判断信号V1小于值Vthw2,将感测状态SM变成“0”,并且响应于第一状态判断信号V1大于值Vthw2,将感测状态SM保持为“1”。 As a result of the comparison operation S90, the first state in response to the determination signal value is less than V1 Vthw2, the sensing state SM becomes "0", and in response to a first state judgment signal V1 is greater than the value Vthw2, the sensing state is maintained SM "1".

在上述这样的例子中,“0”的感测状态SM可以例如对应于室外亮度,“1”的感测状态SM可以例如对应于明亮房间内的亮度,而“2”的感测状态SM可以例如对应于黑暗房间内的亮度。 In such an example above, "0" is sensed state SM may for example correspond to the outdoor brightness, "1" is sensed state SM may for example correspond to a brightness in a bright room, and a sense of "2" sensing state SM can for example, corresponds to the brightness in a dark room.

在两个感测状态SM和三个感测状态SM的例子中,控制信号输出单元630都响应于感测状态SM而控制背光单元900,驱动电压发生器950以及感测信号调整器810。 In the two and three sensed condition sensed condition SM SM example, the control signal output unit 630. The backlight control unit 900 and the SM is responsive to a sensed condition, the driving voltage generator 950, and a sensing signal conditioner 810. 例如,当环境光充足时,降低控制电压VSG,或者降低感测信号调整器810的增益。 For example, when ambient light is sufficient, the VSG voltage reduction control, or reduce the gain adjust sensing signal 810. 然而,在三个感测状态的例子中,可以执行用于控制背光单元900的灯的亮度的调光(dimming)控制,并且可以更详细地控制驱动电压发生器950的控制电压VSG和感测信号调整器810的增益。 However, in the example of three sensed condition may be performed for adjusting the brightness of the backlight lamp control unit 900 (Dimming) control, and may control the driving voltage of the control voltage generator 950 and the sensing VSG more detail gain signal adjuster 810.

或者,操作单元620可以被配置为针对4个或更多可能的状态确定感测状态SM,并且可以响应于状态判断信号V1、V2和V3来判断感测状态SM。 Alternatively, the operation unit 620 may be configured to determine a sensed condition for four or more possible states SM, and may be determined in response to the status signals V1, V2 and V3 to determine the sensed state SM.

依照本发明示例性实施例的LCD装置还可以包括光电传感器(未示出),其具有与PSDA相同结构、并且被阻断所有环境光和LBU。 LCD device according to an exemplary embodiment of the present invention may further comprise a photosensor (not shown), which has the same structure PSDA, and blocked all ambient light LBU. 这样的传感器仅响应于温度来输出感测信号,并且通过考虑温度的影响,PSDA可以确定包括这样的温度敏感感测信号在内的感测状态SM从而可以执行更加稳定的光电感测。 Such sensors only in response to temperature sensing signal is output, and by considering the effect of temperature, can be determined PSDA sensed condition includes a temperature sensitive sensing signal including the SM can be performed more stable photoelectric sensing.

现在,参看图12和13并结合图8说明一种LCD装置,该LCD装置可以使用第一参考光电传感器PSA和第二参考光电传感器PSB从PSDA获取对应于环境光变化的最佳感测信号。 Referring now to FIGS. 12 and 13, and an LCD device described in conjunction with FIG. 8, the LCD device may use a first reference and a second reference photosensor PSA PSB obtain photosensor corresponding to the ambient light sensing signal from the best PSDA.

图12示出依照本发明另一个示例性实施例的LCD装置中取决于感测模式的PSDA的感测信号的波形,而图13是依照本发明另一个示例性实施例的用于控制LCD装置中的PSDA的感测信号的示例性流程图。 12 shows a sense signal waveform LCD apparatus of the exemplary embodiment depends PSDA sensing mode in accordance with another embodiment of the invention, and FIG. 13 is an example of the present invention in accordance with another exemplary embodiment of the LCD control device An exemplary flowchart of the sensing signal of the PSDA.

依照该示例性实施例的LCD装置包括感测信号处理器800,信号控制器600,背光单元900以及驱动电压发生器950,如图8所示。 LCD device in accordance with the exemplary embodiment of the exemplary embodiment includes a sensing signal processor 800, the signal controller 600, the backlight unit 900 and a driving voltage generator 950, as shown in FIG.

感测信号处理器800包括感测信号调整器810和模数转换器820,并且信号控制器600包括信号输入单元610,操作单元620和控制信号输出单元630。 Sensing a sensing signal processor 800 includes a signal conditioner 810 and analog to digital converter 820, and the signal controller 600 includes a signal input unit 610, an operation unit 620 and a control signal output unit 630. 感测信号处理器800和信号输入单元610的操作与上面参看图8所述的基本上相同,因而将省略详细的说明。 Referring to the sensing signal processor 800 and the operation signal input unit 610 in FIG. 8 above is substantially the same, and thus the detailed description is omitted.

现在将说明响应于触摸的PSDA的感测信号的波形。 Now will be described the waveform signal in response to sensing a touch of PSDA.

在图12中,横轴表示关于LC面板组件300的感测信号线P1-Pm的X坐标,而纵轴表示对应于X坐标内的感测信号VP1-VPM的电压电平。 In FIG 12, the horizontal axis represents the X-coordinate on the LC panel assembly 300 of the sensing signal lines P1-Pm and the vertical axis represents a voltage level corresponding to the X coordinate of the sensing signal of the VP1-VPM. 感测信号VP1-VPM是连接到例如其中一个感测扫描线Si上的PSDA的输出信号,而且假设触摸发生在其中一个感测扫描线Si和其中一个感测信号线PT的交叉处。 VP1-VPM sensing signal is connected to the output signal, for example, on PSDA wherein a sensing scan line Si, and assumed that a touch occurs at the intersection where a scan line Si and sensing a sense signal lines wherein the PT. 另外,为了便于说明起见,在触摸位置X(PT)处的PSDA的感测信号VPT被称作“触摸电压”,而在非触摸位置处的PSDA的感测信号VB1和VB2被称作“背景电压”。 Further, for convenience of explanation, the VPT PSDA sensing a touch position signal X (PT) is referred to at the "touch voltage" is referred to the sensed signal at the non-PSDA VB1 and VB2 touched position "BACKGROUND Voltage".

图12中的波形(1)是被称作阴影模式(shadow mode)的感测模式下的感测信号波形,在该阴影模式下,触摸电压VPT低于背景电压VB1,而图12中的波形(2)是被称作背光模式的感测模式下的感测信号波形,在该背光模式下,触摸电压VPT高于背景电压VB2。 The waveform in FIG. 12 (a) is a mode called shadow (shadow mode) of a signal waveform sensed in the sensing mode, in which the shadow mode, the background is lower than the voltage VPT touch voltages VBl, while the waveform 12 in FIG. (2) is a sense signal waveform is referred to as a backlight mode sensing mode, in the backlight mode, the touch voltage VPT above background voltage VB2. 阴影模式表示环境光的强度高(亮),并且在这种情形下,环境光的量大于由于触摸的反射LBU的量,从而触摸电压VPT低于背景电压VB1。 Shading pattern represents the intensity of ambient light is high (bright), and in this case, greater than the amount of ambient light reflected LBU touch due to the background is lower than the voltage VPT touch voltages VB1. 背光模式表示环境光的强度较低(较暗),并且在这种情形下,环境光小于反射LBU,从而触摸电压VPT高于背景电压VB2。 The backlight mode indicates a lower intensity of the ambient light (dark), and in this case, ambient light is less than LBU is reflected, so that the touch voltage VPT above background voltage VB2. 背景电压VB1和VB2主要取决于环境光的强度来确定,而触摸电压VPT主要取决于背光单元900的亮度来确定。 BACKGROUND voltages VB1 and VB2 primarily depends on the intensity of ambient light is determined, depending on the touch voltage VPT luminance of the backlight unit 900 is determined.

信号控制器600接收对应于图12中的波形(1)或波形(2)的感测信号VP1-VPM,并比较其幅值以判定是否发生了触摸以及触摸位置。 The controller 600 receives a signal corresponding to the waveform in FIG. 12 (1) or waveform (2) of the sensing signal VP1-VPM, and compares its amplitude to determine whether the touch occurs and a touch position. 换句话说,当电压电平超过预定范围的背景电压电平时,信号控制器600将该电压电平的存在确定为触摸,并随后提取触摸位置。 In other words, when the background level of the voltage exceeds a predetermined voltage range of the level, the controller 600 signals the presence of voltage level is determined to be a touch, the touch location and then extracted.

然而,如果LCD装置位于阴影模式和背光模式之间,换句话说,当背景电压VB1-VB2与触摸电压VPT之间的差(用ΔVS1和ΔVS2表示)很小时,很难辨别确定是否发生了触摸以及触摸位置。 However, if the LCD device is located between the shadow mode and a backlight mode, in other words, when the difference (represented by ΔVS1 and ΔVS2) is small between the background voltage VB1-VB2 voltage with the VPT touch, difficult to distinguish the touch occurs to determine whether and a touch position. 因此,需要将感测信号保持为预定幅值。 Thus, the sense signal needs to be kept a predetermined magnitude.

现在,参照图13详细说明依照本发明另一个示例性实施例的LCD装置的操作单元620和控制信号输出单元630,其中感测信号被控制成使ΔVS1和ΔVS2保持为预定幅值。 Now, with reference to FIG. 13 described in detail in accordance with the operation unit 620 and the control signal output unit 630 according to the present invention, LCD device according to another exemplary embodiment, wherein the sensing signal is controlled so as to maintain a predetermined ΔVS2 ΔVS1 and amplitude.

触摸位置X(PT)处的PSDA由于触摸而被阻断环境光,从而基本上处于与被阻断环境光的第二参考光电传感器PSB相同的状态。 PSDA touch position X (PT) is due to a touch at block ambient light, thereby substantially in the second reference ambient light photosensor is blocked PSB same state. 因此,触摸电压VPT和第二参考光电传感器PSB的感测信号具有基本上相同的电压电平。 Accordingly, the touch and the second reference voltage VPT photosensor sensing signals PSB have substantially the same voltage level. 另外,无触摸位置处的PSDA被提供环境光和LBU,从而基本上处于与第一参考光电传感器PSA相同的状态。 Further, at a non-touched position is supplied PSDA LBU is ambient light, thereby substantially in the first reference photosensor PSA same state. 因此,背景电压和第一参考光电传感器PSA的感测信号具有基本上相同的电压电平。 Therefore, the background voltage and the first reference photosensor PSA sensing signal having substantially the same voltage level. 结果,背景电压与触摸位置和无触摸位置处的触摸电压之间的差分别基本上相同于第一参考光电传感器PSA和第二参考光电传感器PSB之间的差ΔVS。 As a result, the difference between the background voltage and the voltage of the touch at the touch position of the touch position are not substantially identical to the first reference difference ΔVS between the photoelectric sensor and the second reference photosensor PSA PSB. 在本实施例中,使用第一参考光电传感器PSA和第二参考光电传感器PSB,控制PSDA的控制电压的幅值,以及控制感测信号调整器810的增益和背光单元900的灯的亮度,以便使差ΔVS可以位于预定范围内。 In the present embodiment, a photosensor using the first reference and the second reference photosensor PSA PSB, the control voltage PSDA amplitude control, and control brightness of light sensing signal gain adjuster 810 and the backlight unit 900 so as to so that the difference ΔVS may be located within a predetermined range.

在本实施例中,为了便于说明起见,相同的标号分别用于背光控制信号BLC和计算背光控制信号BLC的背光控制变量,增益控制信号AG和增益控制变量,以及电压控制信号SG和电压控制变量,并且控制信号输出单元630将计算出的控制变量BLC、AG和SG分别传输给背光单元900,感测信号调整器810和驱动电压发生器950,作为控制信号。 In the present embodiment, for convenience of explanation, the same reference numerals are used to calculate the backlight control signal BLC and a backlight control signal BLC backlight control variable, the gain control signal AG and variable gain control, and the voltage control signal SG and the voltage control variables and control signal output unit 630 outputs the calculated controlled variable transmission BLC AG and SG, respectively, to the backlight unit 900, a sensing signal conditioner 810 and a driving voltage generator 950, as the control signal.

首先,该操作开始(S100),并且操作单元620和控制信号输出单元630初始化背光单元900和感测信号调整器810(S105)。 First, the operation starts (SlOO), and the operation unit 620 and a control signal output unit 630 initializes the backlight unit 900 and the sensing signal conditioner 810 (S105). 控制信号输出单元630以背光控制变量BLC代替背光最小值BLCL,以便传输给背光单元900,并以增益控制变量AG代替增益中间值AGMID,以便传输给感测信号调整器810。 Control signal output unit 630 instead of the backlight control variable BLC BLCL minimum backlight, the backlight unit 900 for transmission to, and to the gain control in place of the variable gain intermediate value AG AGMID, for transmission to the sensing signal conditioner 810. 然后,响应于背光最小值BLCL,背光单元900用标准的恒定电流例如15mA操作。 Then, in response to a minimum BLCL backlight, the backlight unit 900, for example, a standard constant current 15mA operation.

随后,操作单元620将感测信号VSA与设置值VBL和VBH进行比较(S110)。 Subsequently, the operation unit 620 is provided with a sensing signal VSA VBL and VBH value is compared (S110).

在操作S110进行比较以后,响应于感测信号VSA小于值VBL而大于值VBH,再次将感测信号VSA与值VBL进行比较(S120)。 After operation S110 compares, in response to the sensing signal VSA less than a value larger than the value VBL and VBH, VSA and the sensing signal value VBL is compared again (S120).

结果,响应于感测信号VSA小于值VBL,向电压控制变量SG添加电压变化值ΔSG,以产生修正的电压控制变量SG'(S125),并且响应于感测信号VSA大于值VBL,将感测信号VSA与值VBH进行比较(S130)。 As a result, in response to the sensing signal VSA less than the value VBL, SG adding a voltage change value of ΔSG to the voltage controlled variable to generate the correction voltage controlled variable SG '(S125), in response to the sensing signal VSA is larger than the value VBL, the sensing VSA signal compared with the value VBH (S130).

在操作S130进行比较以后,响应于感测信号VSA大于值VBH,从电压控制变量SG中减去电压变化值ΔSG,以产生修正的电压控制变量SG'(S135),并且响应于感测信号VSA小于值VBL,重复操作20。 After operation S130 compares, in response to the sensing signal is greater than the value VBH VSA, a voltage change value is subtracted from the voltage controlled variable ΔSG SG to generate the correction voltage controlled variable SG '(S135), in response to the sensing signal VSA less than the value VBL, operation 20 is repeated.

在操作S110至S135期间,控制PSDA以及第一与第二参考光电传感器PSA与PSB的控制电压VSG,使得第一参考光电传感器PSA的感测信号VSA可处于值VBL与值VBH之间。 During operation S110 to S135, and the first and second control PSDA photosensor reference voltage VSG PSB PSA control such that the first reference photosensor PSA VSA sensing signal value may be between VBL and the value VBH. 这样,背景电压和触摸电压都处于预定范围之内,从而PSDA的感测信号无失真地被输入到信号控制器600。 Thus, the background voltage and the touch voltages are within a predetermined range, thereby PSDA sensing signal without distortion signal is inputted to the controller 600.

或者,控制PSDA以及第一与第二参考光电传感器PSA与PSB的输入电压而非控制电压VSG,使得第一参考光电传感器PSA的感测信号VSA可处于值VBL与值VBH之间。 Alternatively, the control PSDA and first and second reference photosensor PSA and PSB input voltage instead of the VSG control voltage, such that the first reference photosensor PSA VSA sensing signal value may be between VBL and the value VBH.

在操作S110进行比较以后,响应于感测信号VSA处于值VBL与值VBH之间,将第一和第二参考光电传感器PSA和PSB的感测信号之差ΔVS与设置值ΔVSL和ΔVSH进行比较(S140)。 After operation S110 compares, in response to the sensing signal is at a value between VBL and VSA VBH value, the difference value ΔVS provided ΔVSL ΔVSH sensing signals and the first and second reference photosensor PSA and PSB were compared ( S140).

结果,响应于差ΔVS处于设置值ΔVSL和ΔVSH之间,重复操作S110,并且响应于差ΔVS小于ΔVSL或者大于ΔVSH,将增益控制变量AG与增益最大值AGMAX进行比较,并且将差ΔVS与值ΔVSL进行比较(S150)。 As a result, in response to a difference between the set value ΔVS ΔVSL and ΔVSH, operation S110 is repeated, and in response to the difference ΔVS ΔVSL less than or greater than ΔVSH, the variable gain control of the gain maximum value AGMAX AG are compared and the difference value ΔVS ΔVSL comparing (S150).

在操作S150进行比较以后,响应于增益控制变量AG不同于增益最大值AGMAX或者差ΔVS大于ΔVSL,则将差ΔVS与值ΔVSL进行比较(S160)。 After operation S150 is compared, in response to the gain control is different from the variable gain AG or the difference ΔVS is larger than the maximum AGMAX ΔVSL, then the difference value ΔVS ΔVSL compared (S160).

结果,响应于差ΔVS小于值ΔVSL,则向增益控制变量AG添加增益变化值ΔAG,以产生修正的增益控制变量AG'(S165),并且响应于差ΔVS大于值ΔVSL,将差ΔVS与值ΔVSH进行比较(S170)。 As a result, in response to a difference ΔVS less than the value ΔVSL, the AG add the gain variation value ΔAG gain control variable, to generate a modified gain control variable AG '(S165), and in response to a difference ΔVS is larger than the value ΔVSL, the difference ΔVS value ΔVSH Compare (S170).

在操作S170进行比较以后,响应于差ΔVS大于值ΔVSH,从增益控制变量AG中减去增益变化值ΔAG,以产生修正的增益控制变量AG'(S175),并且响应于差ΔVS小于值ΔVSH,重复操作S110。 After operation S170 compares, in response to a difference value ΔVS is larger than ΔVSH, the gain variation value is subtracted from the gain control variable AG ΔAG in order to generate a modified gain control variable AG '(S175), and in response to a value less than the difference ΔVS ΔVSH, repeat S110.

在操作S140至S175中,控制感测信号调整器810的增益,使得第一与第二参考光电传感器PSA与PSB之差ΔVS可处于值ΔVSL与值ΔVSH之间。 In operation S140 to S175, a sensing signal to adjust the control gain 810, such that the first and second reference photosensor difference ΔVS PSB PSA may be between the value of the value ΔVSL ΔVSH. 例如,对于较小的差ΔVS,增加感测信号调整器810的增益,而对于较大的差ΔVS,减小感测信号调整器810的增益。 For example, for smaller difference [Delta] VS, the sensing signal increases the gain adjuster 810, while for the larger difference [Delta] VS, the sensing signal reducing the gain adjuster 810. 这样,位于预定范围内的差ΔVS清楚地辨认背景电压和触摸电压,从而判断是否发生了触摸。 Thus, the difference ΔVS is located within a predetermined range of voltages and the background clearly recognized touch voltage, to determine whether the touch occurs.

在操作S150进行比较以后,响应于增益控制变量AG为增益最大值AGMAX且差ΔVS小于值ΔVSL,向背光控制变量BLC添加背光变化值ΔBLC(S180),并且将背光控制变量BLC与背光最大值BLCH进行比较(S185)。 After operation S150 is compared, in response to the gain control variable AG AGMAX and the difference is less than the value ΔVS ΔVSL, to the backlight control variable BLC maximum gain change value is added back ΔBLC (S180), and the backlight control variable BLC maximum backlight BLCH Compare (S185).

在操作S185进行比较以后,响应于背光控制变量BLC小于背光最大值BLCH,重复操作S110,并且响应于背光控制变量BLC大于背光最大值BLCH,用增益控制变量AG替代增益最小值AGMIN(S190),然后,用背光控制变量BLC替代背光最小值BLCL(S195),并且重复操作S110。 After operation S185 is compared, in response to the backlight control variable BLC is less than the maximum backlight BLCH, operation S110 is repeated, and in response to the backlight control variable BLC is greater than the maximum backlight BLCH, gain controlled variable gain AG alternative minimum AGMIN (S190), then, the backlight control variable BLC alternative minimum backlight BLCL (S195), and repeats operation S110.

在操作S150至S165中,响应于不管如何调整感测信号调整器810的增益,差ΔVS都不大于值ΔVSL,则提高背光单元900的亮度以扩大差ΔVS。 In operation S150 to S165, regardless of the adjustment in response to the sensing signal to adjust the gain of 810, the difference is not greater than the value [Delta] VS ΔVSL, luminance of the backlight unit 900 is increased to enlarge the difference ΔVS. 换句话说,当由于环境光的微弱强度而无论如何调整感测信号调整器810的增益都辨别不开背景电压与触摸电压时,提高背光单元900的亮度以扩大第二参考光电传感器PSB的感测信号VSB和PSDA的触摸电压。 In other words, when the intensity of the ambient light is weak because in any event adjusted to adjust the gain of the sensing signal 810 are not open to identify the background voltage and the touch voltage, increase the luminance of the backlight unit 900 to sense the expansion of the second reference photosensor PSB VSB signal and sensing touch PSDA voltage. 然后,LCD装置的感测模式从阴影模式变到背光模式,从而背景电压和触摸电压被区别开。 Then, sensing mode LCD device is increased from the shadow mode to the backlight mode, so that the background voltage and the touch voltages are distinguished.

在操作S180至S185中,响应于无论背光控制变量BLC是否大于背光最大值BLCH,差ΔVS都小于值ΔVSL,则环境光的强度被确定为被提高,从而感测信号调整器810的增益被最小化,并且背光单元900的亮度被允许在操作S190至S195中具有最小值。 In operation S180 to S185, whether in response to a backlight control variable BLC is greater than the maximum value of the backlight BLCH, less than the difference value ΔVS ΔVSL, the intensity of the ambient light is determined to be increased, thereby sensing signal sensing gain adjuster 810 is minimized of, and the luminance of the backlight unit 900 is allowed to have a minimum value at operation S190 to S195. 相应地,在感测模式中,背光模式被改变成阴影模式,从而背景电压和触摸电压被区别开。 Accordingly, in the sensing mode, the mode is changed back to the shadow mode, so that the background voltage and the touch voltages are distinguished.

如上所述,使用第一和第二参考光电传感器PSA和PSB的感测信号VSA和VSB以及感测信号VSA和VSB的差ΔVS控制PSDA的控制电压、感测信号调整器810的增益以及背光单元900的亮度,使得背景电压和PSDA的触摸电压可被区别开。 As described above, using the first and the sensed signal and a difference ΔVS VSA and VSB VSA and VSB signal sensing a second reference photosensor PSA and PSB PSDA of the control voltage sense signal gain adjuster 810 and a backlight unit 900 brightness, so that the touch voltage and the voltage PSDA background can be distinguished. 相应地,信号控制器600接收PSDA的感测信号来确定是否发生了触摸以及触摸位置。 Accordingly, the signal controller 600 receives a sensing signal PSDA to determine whether the touch occurs and a touch position.

在本实施例中,信号输入单元610,操作单元620以及控制信号输出单元630用数字逻辑电路实现,例如使用包含在单芯片内或包含在包括感测信号处理器的芯片内的微处理器或ASIC专用集成电路进行的编程。 In the present embodiment, the signal input unit 610, an operation unit 620 and a control signal output unit 630 implemented by a digital logic circuit, for example comprising a microprocessor on a single chip or included in the chip includes a sensing signal processor or ASIC-specific programming of integrated circuits.

尽管上面已经说明了设有背光单元的LCD装置,但是本发明并不限于此,而是可以用在其它设有背光单元的非发射显示装置中。 Although the above has been described LCD device provided with a backlight unit, but the present invention is not limited thereto, but may be displayed in other non-emitting device provided with the backlight unit.

依照本发明,该LCD包括依赖于环境光的第一参考光电检测器和仅依赖于LBU的第二参考光电传感器,以便根据第二参考光电传感器的感测信号判断环境光的强度,由此准确地执行PDSA的光电感测并控制背光单元的亮度。 According to the present invention, the LCD includes a dependence on the ambient light in the first reference and the second reference photodetectors depends only on the photosensor LBU order determined according to the intensity of the ambient light sensing signal of the second reference photosensor, thereby accurately PDSA performing a photo-sensing and controlling the brightness of the backlight unit.

另外,有可能获取PSDA的感测信号,使用参考光电传感器的感测信号,通过控制PSDA的该感测信号,能够判断依赖于触摸的触摸信息,而无论外部环境如何变化。 Further, it is possible to obtain PSDA sensing signal, using a sensing signal of the reference photosensor, by controlling PSDA the sensing signal can be determined dependent on the touch information, regardless of how changes in the external environment.

虽然已经参考示例性实施例描述了本发明,但是应当理解,本发明并不限于此处公开的实施例,相反,本发明旨在涵盖落入所附权利要求书的精神和范围内的所有变化、改变以及等同布置。 While the embodiment has been described with reference to exemplary embodiments of the present invention, it is to be understood that the present invention is not limited to the embodiments disclosed herein, on the contrary, is intended to cover all changes that fall within the scope of the appended claims the spirit and scope of , changes and equivalent arrangements.

本申请要求于2004年6月10日提交的韩国专利申请第2004-0042574号和于2004年8月13日提交的韩国专利申请第2004-0064038号的优先权,这些申请的全部内容被引入在此以作参考。 This application claims priority to Korean Patent Application June 10, 2004 filed No. 2004-0042574 and Korean Patent Application on August 13, 2004 filed No. 2004-0064038, the entire contents of these applications are introduced this reference.

Claims (33)

1.一种显示装置,包括:面板组件;背光单元,向所述面板组件提供光;第一光电传感器,被提供环境光和来自所述背光单元的光,以产生第一感测信号;第二光电传感器,被阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;感测信号处理器,接收来自所述第一和第二光电传感器的所述第一和第二感测信号进行处理;以及信号控制器,响应于所述环境光的强度来确定感测状态,并根据所述感测状态执行预定的控制操作,其中所述环境光的强度根据来自所述感测信号处理器的处理过的第一感测信号和处理过的第二感测信号来确定。 1. A display device, comprising: a panel assembly; a backlight unit providing light to the panel assembly; a first photosensor, provided the ambient light and light from the backlight unit to generate a first sensing signal; a second two photoelectric sensors, the ambient light is blocked and receives light from the backlight unit to generate a second sensing signal; sensing signal processor receives the first and the second from the first photosensor and a second sensing signal for processing; and a signal controller, in response to the determined ambient light intensity sensed condition, and performs a predetermined control operation according to the sensed condition, wherein the intensity of the ambient light in accordance with processed first sensing signal from the sensing signal processor and processed to determine a second sensing signal.
2.如权利要求1所述的显示装置,其中所述信号控制器根据处理过的第一和第二感测信号产生至少一个状态判断信号,并响应于所述至少一个状态判断信号来确定所述感测状态,而且所述至少一个状态判断信号包括对应于所述处理过的第一与第二感测信号之间的差值的第一判断信号。 2 determines the display device of claim 1, wherein the signal controller generates at least one signal based on the processed state determining first and second sensing signal, in response to the at least one state determination signal said sensing state, and at least one status signal includes determining a first decision signal corresponding to the difference between the treated sensing first and second signal.
3.如权利要求2所述的显示装置,其中所述信号控制器控制所述感测信号处理器的增益,以调整所述第一感测信号的幅值。 The display device according to claim 2, wherein said signal controller controls the gain of the sensing signal processor to adjust the amplitude of the first sensing signal.
4.如权利要求2所述的显示装置,其中所述信号控制器响应于所述感测信号控制所述背光单元的亮度。 The display device according to claim 2, wherein said controller is responsive to the sensing signal luminance control of the backlight unit sensing signal.
5.如权利要求2所述的显示装置,其中所述第一光电传感器包括感测元件,并且所述信号控制器控制所述感测元件的控制电压,以调整所述第一光电传感器的敏感度。 Sensitive The display device according to claim 2, wherein said first sensing element comprises a photosensor, and the controller controls the control voltage signal of the sensing element, to adjust the first photosensor degree.
6.如权利要求2所述的显示装置,其中所述感测信号处理器放大所述第一和第二感测信号,并将放大的第一和第二感测信号转换为数字信号。 The display device according to claim 2, wherein the sensing signal processor amplifying the first and second sensing signal, the amplified first and second sensing signal into a digital signal.
7.如权利要求2所述的显示装置,其中所述至少一个状态判断信号还包括:第二判断信号,对应于所述感测信号处理器的输入容许最大信号与所述处理过的第一感测信号之间的差值;和第三判断信号,对应于所述输入容许最小信号与所述处理过的第二感测信号之间的差值。 The display device according to claim 2, wherein said at least one further state judging signal comprises: a second determination signal, corresponding to the allowable maximum input signal of the sensing signal processor with the first treated the difference between the sensing signal; and a third determination signal, corresponding to the minimum allowable difference between the input signal and the processed second sensing signal.
8.如权利要求7所述的显示装置,其中所述感测状态包括第一状态和第二状态中的一个,以及在作为初始状态的所述第一状态中,响应于所述第一判断信号大于第一设置值以及所述第二判断信号小于第二设置值,所述信号控制器从所述第一状态改变成所述第二状态,并且响应于所述第一判断信号小于所述第一设置值以及所述第二判断信号大于所述第二设置值中的一个,所述信号控制器保持所述第一状态,和在所述第二状态中,响应于所述第一判断信号小于第三设置值以及所述第三判断信号小于第四设置值,所述信号控制器从所述第二状态改变成所述第一状态,并且响应于所述第一判断信号大于所述第三设置值以及所述第三判断信号大于所述第四设置值中的一个,所述信号控制器保持所述第二状态。 The display device according to claim 7, wherein said sensing state includes a first state and a second state, and in the first state as an initial state in response to the first determination signal is greater than a first set value and the second determination signal is less than a second set value, the control signal changes from the first state to the second state, and in response to said signal is less than the first determination the first set value and the second determination signal is greater than a second set value, said controller maintains said first signal state, and a second state in response to the first determination is less than the third setting value signal and the third signal is less than a fourth set value is determined, the controller changes the signal from the second state to the first state, in response to the determination signal is greater than the first the third set value and the third determination signal is greater than a fourth set value, said controller maintains said second signal state.
9.如权利要求7所述的显示装置,其中所述感测状态包括第一状态、第二状态和第三状态中的一个,以及在作为初始状态的所述第一状态中,响应于所述第一判断信号大于第一设置值以及所述第二判断信号大于第二设置值,所述信号控制器从所述第一状态改变成所述第二状态,而且,响应于所述第一判断信号大于所述第一设置值以及所述第二判断信号小于所述第二设置值,所述信号控制器从所述第一状态改变成所述第三状态,并且响应于所述第一判断信号小于所述第一设置值,所述信号控制保持所述第一状态,和在所述第二状态中,响应于所述第一判断信号小于第三设置值,所述信号控制器从所述第二状态改变成所述第一状态,并且响应于所述第一判断信号大于所述第三设置值以及所述第二判断信号大于第四设置值,所述信号控制器保持所述第二状 The display device according to claim 7, wherein said sensing state includes a first state, a second state and the third state, and in the first state as an initial state in response to the Analyzing said first signal is greater than a first set value and the second determination signal is greater than the second set value, the control signal changes from the first state to the second state, and, in response to the first Analyzing the signal is greater than a first set value and the second determination signal is less than the second set value, the control signal changes from the first state to the third state, and in response to the first Analyzing the signal is less than a first set value, said control signal holding the first state and a second state in response to the first set value less than the third determination signal, the signal from the controller said second state changes to the first state, and in response to said first determination signal is larger than the third set value and the second determination signal is greater than the fourth set value, the controller maintains the signal The second shape ,并且响应于所述第一判断信号大于所述第三设置值以及所述第二判断信号小于所述第四设置值,所述信号控制器从所述第二状态改变成所述第三状态,以及在第三状态中,响应于所述第一判断信号小于第五设置值,所述信号控制器从所述第三状态改变成所述第一状态,并且响应于所述第一判断信号大于所述第五设置值,所述信号控制器保持所述第三状态。 And in response to said first determination signal is larger than the third set value and the second determination signal is less than the fourth set value, the controller changes the signal from the third state to the second state , and in a third state in response to said first determination signal is less than the fifth set value, the control signal changes from the third state to the first state, and in response to said first determination signal greater than the fifth set value, the controller maintains the third signal state.
10.如权利要求1所述的显示装置,其中所述第一和第二光电传感器包括含有非晶硅或多晶硅的感测元件。 10. The display device according to claim 1, wherein said first and second photoelectric sensor comprising a sensing element comprises an amorphous silicon or polysilicon.
11.如权利要求1所述的显示装置,其中所述第一光电传感器设置在所述面板组件的显示区域内,并且所述第二光电传感器设置在所述显示区域的外部。 The display device according to claim 1, wherein the first photosensor provided in the display area of ​​the panel assembly, and the second photosensor provided outside the display region.
12.如权利要求1所述的显示装置,还包括温度传感器,其被阻断所述环境光和来自所述背光单元的光,并产生第三感测信号,而且还响应于所述第三感测信号执行所述预定的控制操作。 The display device according to claim 1, further comprising a temperature sensor, which is said to block light from the ambient light from the backlight unit, and generating a third sensing signal, and further responsive to the third performing a predetermined sensing signal to control the operation.
13.一种设有背光单元的显示装置的驱动方法,其中背光单元提供光,所述方法包括:在第一光电传感器处接收环境光和来自所述背光单元的光,以产生第一感测信号;在第二光电传感器处阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;响应于所述第一和第二感测信号,产生状态判断信号;以及响应于由所述状态判断信号指示的所述环境光的强度,确定感测状态;其中所述状态判断信号表示所述第一和第二感测信号之间的差值。 A display device driving method is provided with a backlight unit, a backlight unit which provides light, the method comprising: a first photosensor receiving ambient light at the light from the backlight unit to generate a first sensing signal; blocked at a second photosensor receiving light and the ambient light from the backlight unit to generate a second sensing signal; in response to the first and second sensing signal, a signal generating state is determined; and in response to the intensity of the ambient light is determined by the status signal indicative of the sensed condition is determined; wherein said status decision signal representative of the difference between the first and the second sensing signal.
14.如权利要求13所述的方法,还包括在预定范围内调整所述第一感测信号的幅值。 14. The method according to claim 13, further comprising adjusting the amplitude of the first sensing signal is within a predetermined range.
15.如权利要求13所述的方法,还包括响应于所述感测状态调整所述背光单元的亮度。 15. The method of claim 13, further comprising, in response to the sensing state to adjust the brightness of the backlight unit.
16.一种显示装置,包括:面板组件;背光单元,向所述面板组件提供光;第一光电传感器,接收环境光和来自所述背光单元的光,以产生第一感测信号;第二光电传感器,被阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;第三光电传感器,接收书所述环境光和来自所述背光单元的光,以产生根据触摸的第三感测信号;感测信号处理器,处理来自所述第一至第三光电传感器的所述第一至第三感测信号;以及信号控制器,根据处理过的第一和第二感测信号调整所述第三感测信号。 16. A display device, comprising: a panel assembly; a backlight unit providing light to the panel assembly; a first photosensor receiving light and ambient light from the backlight unit to generate a first sensing signal; a second photoelectric sensor, the ambient light is blocked and receives light from the backlight unit to generate a second sensing signal; a third photosensor, the book receiving ambient light from the light of the backlight unit to produce the touch sensing a third signal; sensing signal processor processing the first through third from the first to third photosensor sensing signal; and a signal controller, in accordance with a first treated and second sensing signal to adjust said third sensing signal.
17.如权利要求16所述的显示装置,其中所述信号控制器调整所述第三感测信号,使得所述处理过的第一和第二感测信号之间的差值位于第一设置值与第二设置值之间。 17. The display apparatus according to claim 16, wherein said controller adjusts said third signal sensing signal, so that a difference between the first and second processed signal is in the first sense is provided between the set value and the second value.
18.如权利要求17所述的显示装置,其中所述信号控制器调整输入到所述第三光电传感器的控制电压,以便调整所述第三感测信号。 18. The display device according to claim 17, wherein the controller adjusts the signal inputted to the third photosensor control voltage to adjust said third sensing signal.
19.如权利要求17所述的显示装置,其中所述信号控制器调整所述感测信号处理器的增益,以便调整所述第三感测信号。 19. The display apparatus according to claim 17, wherein the controller adjusts the signal gain of the sensing sensing signal processor to adjust said third sensing signal.
20.如权利要求17所述的显示装置,其中所述信号控制器调整所述背光单元的亮度,以便调整所述第三感测信号。 20. A display device according to claim 17, wherein the signal controller adjusts the luminance of the backlight unit, in order to adjust said third sensing signal.
21.如权利要求17所述的显示装置,其中所述信号控制器调整输入到所述第三光电传感器的控制电压,使得所述处理过的第一感测信号的值位于第三设置值与第四设置值之间。 21. The display apparatus according to claim 17, wherein the controller adjusts the signal inputted to the control voltage of the third photoelectric sensor, such that the value of the processed first sensing signal in the third set value and between a fourth set value.
22.如权利要求21所述的显示装置,其中,响应于所述处理过的第一感测信号小于所述第三设置值,向所述控制电压添加电压变化值,并且响应于所述处理过的感测信号大于所述第四设置值,从所述控制电压中减去所述电压变化值。 22. The display apparatus according to claim 21, wherein, in response to the treated first sensing signal value less than the third set, adding to the control voltage change value voltage, and in response to the processing through the sensing signal is greater than the fourth set value, the control voltage from subtracting the voltage change value.
23.如权利要求17所述的显示装置,其中,响应于所述差值小于所述第一设置值,向所述感测信号处理器的增益增加增益变化值,并且响应于所述差值大于所述第二设置值,从所述感测信号处理器的增益中减去所述增益变化值。 23. The display device according to claim 17, wherein, in response to the first difference is smaller than the set value, increasing the gain to a gain variation value of the sensing signal processor, and in response to said difference is greater than the second set value, the gain is subtracted from the gain variation value of the sensing signal processor.
24.如权利要求23所述的显示装置,其中,响应于所述感测信号处理器的增益为增益最大值并且所述差值小于所述第一设置值,所述背光单元的亮度被提高预定变化值。 24. The display device according to claim 23, wherein, in response to the sensing signal processor gain of the gain maximum value and the difference is less than the first set value, the brightness of the backlight unit is increased a predetermined change in value.
25.如权利要求24所述的显示装置,其中,响应于所述背光单元的亮度为最大变化值,所述感测信号处理器的增益被改变成增益中间值,并且所述背光单元的亮度被改变成最小变化值。 25. The display device of claim 24, and the luminance of the backlight unit, wherein, in response to the maximum brightness of the backlight unit change value, said gain sensing sensing signal processor is changed to an intermediate gain value, It is changed to the minimum change value.
26.如权利要求16所述的显示装置,其中所述第一和第二光电传感器分别包括第一和第二传感元件,所述处理过的第一和第二感测信号分别是所述第一和第二传感元件的输出信号的平均值。 26. The display apparatus according to claim 16, wherein said first and second photoelectric sensors respectively include first and second sensing elements, said first and second processed signals, respectively, said sensing average of the output signals of the first and second sensing elements.
27.如权利要求16所述的显示装置,其中所述第一和第三光电传感器设置在所述面板组件的显示区域内,而所述第二光电传感器设置在所述显示区域的外部。 27. The display device according to claim 16, wherein said first and third photosensor disposed in the display area of ​​the panel assembly, and the second photosensor provided outside the display region.
28.如权利要求16所述的显示装置,还包括阻光构件,阻断环境光到达第二光电传感器。 28. The display apparatus according to claim 16, further comprising a light blocking member, a second blocking ambient light from reaching the photosensor.
29.如权利要求28所述的显示装置,其中所述阻光构件是防止所述面板组件的光泄漏的黑矩阵。 29. The display apparatus according to claim 28, wherein said light blocking member to prevent light leakage of the black matrix of the panel assembly.
30.如权利要求28所述的显示装置,其中所述阻光构件是反射所述环境光的反射构件。 30. A display apparatus according to claim 28, wherein said light blocking member is a reflective member to reflect the ambient light.
31.如权利要求16所述的显示装置,其中所述感测信号处理器和所述信号控制器包括在单芯片中。 31. The display device according to claim 16, wherein said sensing signal and said signal processor comprises a controller in a single chip.
32.一种设有背光单元的显示装置的驱动方法,其中背光单元提供光,所述方法包括:在第一光电传感器处接收环境光和来自所述背光单元的光,以产生第一感测信号;在第二光电传感器处阻断所述环境光并接收来自所述背光单元的光,以产生第二感测信号;在第三光电传感器处接收所述环境光和来自所述背光单元的光,以产生根据触摸的第三感测信号;以及响应于所述第一和第二感测信号调整所述第三感测信号。 32. A method of driving a display device provided with a backlight unit, a backlight unit which provides light, the method comprising: a first photosensor receiving ambient light at the light from the backlight unit to generate a first sensing signal; blocked at a second photosensor receiving light and the ambient light from the backlight unit to generate a second sensing signal; a third photosensor receiving light from the environment of said backlight unit light to produce a third touch sensing signal; a third sensing signal in response to the first and the second sensing signal adjustment.
33.如权利要求32所述的驱动方法,其中调整所述第三感测信号还包括调整所述第三感测信号,使得所述第一和第二感测信号之间的差值处于第一设置值与第二设置值之间。 33. The driving method according to claim 32, wherein said third sensing signal adjusting further comprising adjusting said third sensing signal, so that a difference between the first and the second sensing signal is in the first a set value and second set value between.
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