CN101308304A - Display device and pixel structure and driving method thereof - Google Patents
Display device and pixel structure and driving method thereof Download PDFInfo
- Publication number
- CN101308304A CN101308304A CNA2008101249783A CN200810124978A CN101308304A CN 101308304 A CN101308304 A CN 101308304A CN A2008101249783 A CNA2008101249783 A CN A2008101249783A CN 200810124978 A CN200810124978 A CN 200810124978A CN 101308304 A CN101308304 A CN 101308304A
- Authority
- CN
- China
- Prior art keywords
- gate
- voltage
- feedthrough voltage
- data signal
- polarity data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims description 64
- 239000010409 thin film Substances 0.000 claims description 52
- 239000004973 liquid crystal related substance Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
技术领域 technical field
本发明是关于一种显示装置及其像素结构与驱动方法;更确切来说,本发明是关于一种具有低色偏(color washout)的显示装置及其像素结构与驱动方法。The present invention relates to a display device and its pixel structure and driving method; more precisely, the present invention relates to a display device with low color washout and its pixel structure and driving method.
背景技术 Background technique
随着科技进步,各种电子产品已成为人们生活不可或缺的一部分,其中显示器为多媒体电子产品的重要元件。由于液晶显示器(liquid crystal display;LCD)具有省电、无幅射、体积小、低耗电量、不占空间、平面直角、高解析度以及画质稳定等优点,其已逐渐取代传统的阴极射线管显示器(cathoderay tube display;CRT display),并已广泛应用于手机、屏幕、数字电视、笔记型计算机等电子产品上,作为显示之用。With the advancement of science and technology, various electronic products have become an indispensable part of people's lives, and displays are important components of multimedia electronic products. Because liquid crystal display (liquid crystal display; LCD) has the advantages of power saving, no radiation, small size, low power consumption, no space, right angle plane, high resolution and stable image quality, it has gradually replaced the traditional cathode A ray tube display (cathoderay tube display; CRT display) has been widely used in mobile phones, screens, digital TVs, notebook computers and other electronic products for display purposes.
当使用者从不同视角来观看传统液晶显示器时,由于不同视角的相位差值不一样,因此肉眼将明显感受到不同的亮度。更甚者,使用者会发现灰阶反转(gray scale inversion)的现象。When a user views a traditional liquid crystal display from different viewing angles, the naked eye will obviously perceive different brightness due to the different phase difference values of different viewing angles. What's more, users will find the phenomenon of gray scale inversion.
为解决上述问题,业界已发展出多种增加可观看视角的技术,以避免传统液晶显示器产生灰阶反转的现象,其中之一即为多区域垂直配向(multidomain vertical alignment;MVA)技术。多区域垂直配向技术主要是将液晶显示器中的液晶材料分隔出多个配向区域,藉此使不同配向区域中液晶材料之间呈现一种互相补偿的排列方式,使得使用者在不同视角之下,可观看到相同的相位差值,从而扩大视角范围以避免发现灰阶反转现象。In order to solve the above problems, the industry has developed a variety of technologies to increase the viewing angle to avoid the phenomenon of grayscale inversion in traditional liquid crystal displays, one of which is the multidomain vertical alignment (MVA) technology. The multi-area vertical alignment technology is mainly to separate the liquid crystal material in the liquid crystal display into multiple alignment areas, so that the liquid crystal materials in different alignment areas present a mutually compensating arrangement, so that users can enjoy different viewing angles under different viewing angles. The same phase difference value can be seen, thereby expanding the viewing angle range to avoid gray scale inversion phenomenon.
然而,多区域垂直配向技术虽具有高对比和广视角的优点,此种技术也伴随着一些缺点,其中之一即为使用者于大视角观看使用多区域垂直配向技术的液晶显示器时,会感受到色偏的缺陷。色偏的产生是随着使用者的视角改变时,显示器的液晶分子其穿透率因其导通电压有所不同而造成差异所导致。因此,使用者肉眼原本看到的特定颜色将会在视角增加时产生泛白的情形。However, although the multi-domain vertical alignment technology has the advantages of high contrast and wide viewing angle, this technology also has some disadvantages, one of which is that when users watch the liquid crystal display using the multi-domain vertical alignment technology at a large viewing angle, they will feel To the defect of color cast. The generation of color shift is caused by the difference in the transmittance of the liquid crystal molecules of the display due to the difference in the conduction voltage when the viewing angle of the user changes. Therefore, the specific color originally seen by the naked eye of the user will be washed out when the viewing angle increases.
综上所述,虽然使用多区域垂直配向技术可获得具有高对比和广视角的液晶显示器,从而大幅改善使用者的使用经验,但其大视角色偏现象一直是亟需改善的重要课题。低色偏技术将是未来液晶显示器进攻大尺寸面板市场时必备的条件。有鉴于此,如何改善大视角色偏的问题,已成为亟待解决的问题之一。To sum up, although the use of multi-region vertical alignment technology can obtain liquid crystal displays with high contrast and wide viewing angles, thereby greatly improving the user experience, the large viewing angle shift phenomenon has always been an important issue that needs to be improved. Low color shift technology will be a necessary condition for liquid crystal displays to attack the large-size panel market in the future. In view of this, how to improve the problem of large-screen role bias has become one of the urgent problems to be solved.
发明内容 Contents of the invention
本发明的一目的在于提供一种用于一显示装置的像素结构,该显示装置具有一栅极驱动芯片。此种该像素结构包含第一栅极线、第二栅极线以及像素单元。第一栅极线可接收该栅极驱动芯片产生的第一栅极驱动信号。第二栅极线可接收栅极驱动芯片产生的第二栅极驱动信号。前述像素单元具有一第一像素区域以及一第二像素区域,其中像素单元的第一像素区域以第一电容以及一第一薄膜晶体管与该第一栅极线耦接,并产生第一馈通(feedthrough;FT)电压,像素单元的第二像素区域则以第二电容与第二栅极线耦接,同时以一第二薄膜晶体管与该第一栅极线耦接,并产生第二馈通电压。第一馈通电压及该第二馈通电压根据第一栅极驱动信号及第二栅极驱动信号进行调整。An object of the present invention is to provide a pixel structure for a display device having a gate driver chip. This kind of pixel structure includes a first gate line, a second gate line and a pixel unit. The first gate line can receive the first gate driving signal generated by the gate driving chip. The second gate line can receive the second gate driving signal generated by the gate driving chip. The aforementioned pixel unit has a first pixel area and a second pixel area, wherein the first pixel area of the pixel unit is coupled to the first gate line through a first capacitor and a first thin film transistor, and generates a first feedthrough (feedthrough; FT) voltage, the second pixel region of the pixel unit is coupled to the second gate line by the second capacitor, and coupled to the first gate line by a second thin film transistor, and generates a second feedthrough pass voltage. The first feedthrough voltage and the second feedthrough voltage are adjusted according to the first gate driving signal and the second gate driving signal.
本发明的另一目的在于提供一种驱动方法,此种驱动方法使用于前段所述的像素结构。本发明的驱动方法包含下列步骤:于该显示装置显示一影像的第一画面时,根据该第一栅极驱动信号导通该第一栅极线,俾使该第一馈通电压大于该第二馈通电压;以及于该显示装置显示该影像的第二画面时,根据该第一栅极驱动信号以及该第二栅极驱动信号同时导通该第一栅极线以及该第二栅极线,俾使该第二馈通电压大于该第一馈通电压。Another object of the present invention is to provide a driving method, which is used in the pixel structure mentioned in the preceding paragraph. The driving method of the present invention includes the following steps: when the display device displays a first frame of an image, turn on the first gate line according to the first gate driving signal, so that the first feed-through voltage is greater than the first feed-through voltage Two feed-through voltages; and when the display device displays the second frame of the image, simultaneously turn on the first gate line and the second gate according to the first gate drive signal and the second gate drive signal line so that the second feedthrough voltage is greater than the first feedthrough voltage.
本发明的另一目的在于提供一种显示装置,其包含栅极驱动芯片、第一栅极线、第二栅极线、第一像素单元以及第二像素单元。第一像素单元以及第二像素单元皆分别具有第一像素区域以及第二像素区域。第一像素单元的第一像素区域以第一电容以及一第一薄膜晶体管与该第一栅极线耦接,并产生第一馈通电压;第一像素单元的第二像素区域以第二电容与第二栅极线耦接,同时以一第二薄膜晶体管与该第一栅极线耦接,并产生第二馈通电压;第二像素单元的第一像素区域以第三电容与第二栅极线耦接,同时以一第三薄膜晶体管与该第一栅极线耦接,并产生第三馈通电压;第二像素单元的第二像素区域以第四电容以及一第四薄膜晶体管与该第一栅极线耦接,并产生第四馈通电压。第一馈通电压、第二馈通电压、第三馈通电压以及第四馈通电压分别根据第一栅极驱动信号以及第二栅极驱动信号进行调整。Another object of the present invention is to provide a display device, which includes a gate driver chip, a first gate line, a second gate line, a first pixel unit and a second pixel unit. Both the first pixel unit and the second pixel unit respectively have a first pixel area and a second pixel area. The first pixel area of the first pixel unit is coupled to the first gate line with a first capacitor and a first thin film transistor, and generates a first feed-through voltage; the second pixel area of the first pixel unit is coupled with a second capacitor Coupled with the second gate line, and coupled with the first gate line by a second thin film transistor to generate a second feed-through voltage; the first pixel area of the second pixel unit is connected to the second gate line by the third capacitor The gate line is coupled, and a third thin film transistor is coupled to the first gate line to generate a third feedthrough voltage; the second pixel area of the second pixel unit is connected by a fourth capacitor and a fourth thin film transistor It is coupled with the first gate line and generates a fourth feedthrough voltage. The first feedthrough voltage, the second feedthrough voltage, the third feedthrough voltage and the fourth feedthrough voltage are adjusted according to the first gate driving signal and the second gate driving signal respectively.
本发明的另一目的在于提供一种驱动方法,此种驱动方法是使用于前段所述的显示装置。本发明的驱动方法包含下列步骤:于该显示装置显示一影像的第一画面时,根据该第一栅极驱动信号导通该第一栅极线,俾使该第一馈通电压大于该第二馈通电压,且该第四馈通电压大于该第三馈通电压;以及于该显示装置显示该影像的第二画面时,根据该第一栅极驱动信号以及该第二栅极驱动信号同时导通该第一栅极线以及该第二栅极线,俾使该第二馈通电压大于该第一馈通电压,且该第三馈通电压大于该第四馈通电压。Another object of the present invention is to provide a driving method, which is used in the display device mentioned in the preceding paragraph. The driving method of the present invention includes the following steps: when the display device displays a first frame of an image, turn on the first gate line according to the first gate driving signal, so that the first feed-through voltage is greater than the first feed-through voltage Two feedthrough voltages, and the fourth feedthrough voltage is greater than the third feedthrough voltage; and when the display device displays the second frame of the image, according to the first gate drive signal and the second gate drive signal The first gate line and the second gate line are turned on at the same time, so that the second feed-through voltage is greater than the first feed-through voltage, and the third feed-through voltage is greater than the fourth feed-through voltage.
本发明不需要增加显示装置中栅极线以及的馈通电压。换句话说,本发明可仅使用显示装置中原本数目的栅极线以及数据线,即达到于单一像素中分别提供两种不同大小的馈通电压的目的。因此,大视角色偏现象即可顺利解决,且因栅极线以及数据线的数目没有增加,显示装置的开口率亦得以保持而不降低。The present invention does not need to increase the feedthrough voltage of the gate line and the display device. In other words, the present invention can only use the original number of gate lines and data lines in the display device, that is, to achieve the purpose of providing two different feed-through voltages in a single pixel. Therefore, the large viewing angle deviation phenomenon can be solved smoothly, and because the number of gate lines and data lines does not increase, the aperture ratio of the display device is also maintained without decreasing.
附图说明 Description of drawings
图1是为本发明的显示装置的示意图;1 is a schematic diagram of a display device of the present invention;
图2是为本发明的显示装置中二像素单元的示意图;2 is a schematic diagram of a two-pixel unit in a display device of the present invention;
图3A是为显示第一画面的栅极驱动信号波形图;FIG. 3A is a waveform diagram of a gate driving signal for displaying a first frame;
图3B是为显示第二画面的栅极驱动信号波形图;FIG. 3B is a waveform diagram of a gate driving signal for displaying a second frame;
图4A是为第一像素单元的电压波形示意图;FIG. 4A is a schematic diagram of a voltage waveform of a first pixel unit;
图4B是为第二像素单元的电压波形示意图;以及FIG. 4B is a schematic diagram of a voltage waveform of a second pixel unit; and
图5是为本发明显示装置的驱动方法的流程图。FIG. 5 is a flow chart of the driving method of the display device of the present invention.
附图标号:Figure number:
1:显示装置 10:显示面板1: Display device 10: Display panel
11:栅极驱动芯片 13:源极驱动芯片11: Gate driver chip 13: Source driver chip
111、112、…、11m:栅极线111, 112, ..., 11m: grid lines
121、122、…、12m:栅极驱动信号121, 122, ..., 12m: gate drive signal
131、132、…、13n:数据线131, 132, ..., 13n: data lines
141、142:第一极性数据信号/第二极性数据信号141, 142: first polarity data signal/second polarity data signal
151:第一像素单元 153:第二像素单元151: The first pixel unit 153: The second pixel unit
1300:正极性第一gamma值 1301:gamma值储存单元1300: The first gamma value of positive polarity 1301: Gamma value storage unit
1302:负极性第一gamma值 1303:第一切换单元1302: The first gamma value of negative polarity 1303: The first switching unit
1304:正极性第二gamma值 1305:第二切换单元1304: The second gamma value of positive polarity 1305: The second switching unit
1306:负极性第二gamma值1306: Negative second gamma value
151a:第一像素单元的第一像素区域151a: the first pixel area of the first pixel unit
151b:第一像素单元的第二像素区域151b: the second pixel area of the first pixel unit
153a:第二像素单元的第一像素区域153a: the first pixel area of the second pixel unit
153b:第二像素单元的第二像素区域153b: the second pixel area of the second pixel unit
1511:第一电容 1513:第二电容1511: the first capacitor 1513: the second capacitor
1515:第一薄膜晶体管 1517:第二薄膜晶体管1515: The first thin film transistor 1517: The second thin film transistor
1531:第三电容 1533:第四电容1531: The third capacitor 1533: The fourth capacitor
1535:第三薄膜晶体管 1537:第四薄膜晶体管1535: The third thin film transistor 1537: The fourth thin film transistor
30、32:时间周期 411、413:第一馈通电压30, 32: time period 411, 413: first feedthrough voltage
412、414:第二馈通电压 421、423:第三馈通电压412, 414: second feedthrough voltage 421, 423: third feedthrough voltage
422、424:第四馈通电压422, 424: the fourth feedthrough voltage
具体实施方式 Detailed ways
在参阅图式及随后描述的实施方式后,本领域技术人员可了解本发明的其它目的、优点以及本发明的技术手段及实施态样。After referring to the drawings and the implementations described later, those skilled in the art can understand other objectives and advantages of the present invention, as well as the technical means and implementation aspects of the present invention.
以下将通过实施例来解释本发明内容;然而,本发明的实施例并非用以限制本发明需在如实施例所述的任何环境、应用或特殊方式方能实施。因此,关于实施例的说明仅为阐释本发明的目的,而非用以限制本发明。以下实施例及图式中,与本发明非直接相关的元件皆已省略而未绘示。The content of the present invention will be explained by the following examples; however, the examples of the present invention are not intended to limit the present invention to be implemented in any environment, application or special manner as described in the examples. Therefore, the descriptions about the embodiments are only for the purpose of explaining the present invention rather than limiting the present invention. In the following embodiments and drawings, elements not directly related to the present invention are omitted and not shown.
图1为本发明显示装置的较佳实施例的示意图。显示装置1可以是下列几种平面显示器:有机发光二极管显示器(Organic Light-Emitting DiodesDisplay;OLED)、等离子体显示器(Plasma Display Panel;PDP)、液晶显示器(Liquid Crystal Display;LCD)以及场发射显示器(Field Emission Display;FED)等。在本实施例中,显示装置1为使用点反转(dot inversion)驱动方法的液晶显示器。显示装置1包含显示面板10、栅极驱动芯片11、源极驱动芯片13、m条互相平行的栅极线(111、112、…、11m),以及n条互相平行的数据线(131、132、…、13n),其中m和n均为正整数。显示面板10包含多个像素单元;为简明起见,本实施例仅标示出第一像素单元151以及第二像素单元153。源极驱动芯片11电性连接至栅极线111、112、…、11m,其提供多个栅极驱动信号121、122、…、12m,以分别使能(enable)栅极线111、112、…、11m。源极驱动芯片13电性连接数据线131、132、…、13n,其分别提供多个数据信号(图未绘示)至数据线131、132、…、13n。FIG. 1 is a schematic diagram of a preferred embodiment of the display device of the present invention. The
图2是根据本发明的实施例绘示显示装置的第一像素单元及第二像素单元与栅极驱动芯片及源极驱动芯片的连接关系的示意图。以下将配合图2详细说明本发明显示装置的第一像素单元与第二像素单元的操作及功能。同时,为简明起见,于图2中,仅以第一栅极线111、第二栅极线112、第一数据线131以及第二数据线132表示显示装置1的m条栅极线及n条数据线。同样地,于图2中,亦仅以第一栅极驱动信号121、第二栅极驱动信号122、第一极性数据信号141以及第二极性数据信号142表示显示装置1的多个栅极驱动信号及极性数据信号。FIG. 2 is a schematic diagram illustrating the connection relationship between the first pixel unit and the second pixel unit, the gate driver chip and the source driver chip of the display device according to an embodiment of the present invention. The operation and function of the first pixel unit and the second pixel unit of the display device of the present invention will be described in detail below with reference to FIG. 2 . At the same time, for the sake of simplicity, in FIG. 2, only the
第一像素单元151包含第一像素区域151a、第二像素区域151b、第一电容1511、第二电容1513、第一薄膜晶体管(Thin Film Transistor;TFT)1515以及第二薄膜晶体管1517。第一像素单元151的第一像素区域151a通过第一电容1511与第一栅极线111耦接;同时通过第一薄膜晶体管1515与第一栅极线111及第一数据线131耦接。第一像素单元151的第二像素区域151b通过第二电容1513与第二栅极线112耦接;同时亦通过第二薄膜晶体管1517与第一栅极线111及第一数据线131耦接。The
第二像素单元153同样包含第一像素区域153a、第二像素区域153b、第三电容1531、第四电容1533、第三薄膜晶体管1535以及一第四薄膜晶体管1537。第二像素单元153的第一像素区域153a通过第三电容1531与第二栅极线112耦接;同时通过第三薄膜晶体管1535与第一栅极线111及第二数据线132耦接。第二像素单元153的第二像素区域153b通过第四电容1533与第一栅极线111耦接;同时亦通过第四薄膜晶体管1537与第一栅极线111及第二数据线132耦接。The
第一电容1511、第二电容1513、第三电容1531以及第四电容1533皆具有一电容值,其中第一电容1511的电容值小于第二电容1513的电容值;第四电容1533的电容值小于第三电容1531的电容值。The
源极驱动芯片13包含gamma值储存单元1301、第一切换单元1303以及第二切换单元1305。gamma值储存单元1301储存正极性第一gamma值1300、负极性第一gamma值1302、正极性第二gamma值1304以及负极性第二gamma值1306。由于本实施例的显示装置1为使用点反转驱动方法的液晶显示器,因此,第一极性数据信号141以及第二极性数据信号142将会被交替输出至第一数据线131以及第二数据线132。同时,由于显示面板10具有两种不同像素结构的像素单元(即第一像素单元151及第二像素单元153),而这两种不同像素结构的像素单元又分别通过第一数据线131以及第二数据线132交替地接收第一极性数据信号141以及第二极性数据信号142;因此,gamma值储存单元1301即分别输出正极性第一gamma值1300、负极性第一gamma值1302、正极性第二gamma值1304以及负极性第二gamma值1306,使得第一像素单元151及第二像素单元153具有相同且最佳化地显示效能。The
于显示装置1显示影像的第一画面时,第一数据线131将通过第一切换单元1303接收到具有正极性第一gamma值1300的第一极性数据信号141;同时,第二数据线132将通过第二切换单元1305接收到具有负极性第二gamma值1306的第二极性数据信号142。而于显示装置1显示影像的第二画面时,第一数据线131将通过第一切换单元1303接收到具有负极性第一gamma值1302的第二极性数据信号142;同时,第二数据线132将通过第二切换单元1305接收到具有正极性第二gamma值1304的第一极性数据信号141。When the
在较佳实施例中,第一极性数据信号141以及第二极性数据信号142互为反相的信号,即当第一极性数据信号141为正极性数据信号时,第二极性数据信号142为负极性数据信号;或是当第一极性数据信号141为负极性数据信号时,则第二极性数据信号142即为正极性数据信号。通过前段叙述,本领域技术人员应可了解关于正极性第一gamma值1300、负极性第一gamma值1302、正极性第二gamma值1304以及负极性第二gamma值1306的切换方式,故在此不再赘述。In a preferred embodiment, the first polarity data signal 141 and the second polarity data signal 142 are mutually inverse signals, that is, when the first polarity data signal 141 is a positive polarity data signal, the second polarity data signal The signal 142 is a negative polarity data signal; or when the first polarity data signal 141 is a negative polarity data signal, the second polarity data signal 142 is a positive polarity data signal. Through the foregoing description, those skilled in the art should be able to understand the switching methods of the positive
承上所述,于显示装置1显示影像的第一画面时,栅极驱动芯片11将输出如图3A所绘示的第一栅极驱动信号121以及第二栅极驱动信号122。此时,第一像素单元151将通过第一数据线131接收到具有正极性第一gamma值1300的第一极性数据信号141;同时,第二像素单元153将通过第二数据线132接收到具有负极性第二gamma值1306的第二极性数据信号142。As mentioned above, when the
请一并参考图4A以及图4B,图4A绘示显示装置1显示影像的第一画面及第二画面时,第一像素单元151的电压波形示意图;图4B则绘示显示装置1显示影像的第一画面及第二画面时,第二像素单元153的电压波形示意图。而在时间周期30时,第一栅极驱动信号121将同时导通第一薄膜晶体管1515、第二薄膜晶体管1517、第三薄膜晶体管1535以及第四薄膜晶体管1537。此时,第一像素单元151的第一像素区域151a将通过第一薄膜晶体管1515通过第一数据线131充电,同时,因第一栅极驱动信号121的改变,与第一像素单元151的第一像素区域151a以及第一栅极线111耦接的第一电容1511将造成第一像素区域151a的内部电压改变。Please refer to FIG. 4A and FIG. 4B together. FIG. 4A is a schematic diagram of the voltage waveform of the
据此,第一像素单元151的第一像素区域151a将产生第一馈通电压411;而第一像素单元151的第二像素区域151b将通过第二薄膜晶体管1517通过第一数据线131充电,进而使得第一像素单元151的第二像素区域151b产生第二馈通电压412。Accordingly, the
同样地,当显示装置1显示影像的第一画面,第二像素单元153的第一像素区域153a将通过第三薄膜晶体管1535通过第二数据线132充电,进而使第二像素单元153的第一像素区域153a产生一第三馈通电压421;而其第二像素区域153b将通过第四薄膜晶体管1537通过第二数据线132充电,同时,因第一栅极驱动信号121的改变,与第二像素单元153的第二像素区域153b以及第一栅极线111耦接的第四电容1533将造成第二像素区域153b的内部电压改变,据此,第二像素单元153的第二像素区域153b将产生一第四馈通电压422。Similarly, when the
在显示装置1显示影像的第一画面时,由于第一像素单元151的第一像素区域151a通过第一薄膜晶体管1515的充电,同时,因第一栅极驱动信号121的改变,与第一像素单元151的第一像素区域151a以及第一栅极线111耦接的第一电容1511将造成第一像素区域151a的内部电压改变,而其第二像素区域151b仅通过第二薄膜晶体管1517充电。因此,第一像素单元151的第一馈通电压411将大于第二馈通电压412。而由于第二像素单元153的第二像素区域153b同时通过第四薄膜晶体管1537的充电,同时,因第一栅极驱动信号121的改变,与第二像素单元153的第二像素区域153b以及第一栅极线111耦接的第四电容1533将造成第二像素区域153b的内部电压改变,而其第一像素区域153a仅通过第三薄膜晶体管1535充电。因此,第二像素单元153的第四馈通电压422将大于第三馈通电压421。When the
当显示装置1显示影像的第二画面时,栅极驱动芯片11将输出如图3B所绘示的第一栅极驱动信号121以及第二栅极驱动信号122。此时,第一像素单元151将通过第一数据线131接收到具有负极性第一gamma值1302的第二极性数据信号142;同时,第二像素单元153将通过第二数据线132接收到具有正极性第二gamma值1304的第一极性数据信号141。在时间周期32时,第一栅极驱动信号121将同时导通第一薄膜晶体管1515、第二薄膜晶体管1517、第三薄膜晶体管1535以及第四薄膜晶体管1537。此时,第一像素单元151的第一像素区域151a将通过第一薄膜晶体管1515通过第一数据线131充电,同时,因第一栅极驱动信号121的改变,与第一像素单元151的第一像素区域151a以及第一栅极线111耦接的第一电容1511将造成第一像素区域151a的内部电压改变。When the
据此,第一像素单元151的第一像素区域151a将产生另一第一馈通电压413;而第一像素单元151的第二像素区域151b将通过第二薄膜晶体管1517通过第一数据线131充电,同时,因第二栅极驱动信号122的改变,与第一像素单元151的第二像素区域151b以及第二栅极线112耦接的第二电容1513将造成第二像素区域151b的内部电压改变,据此,第一像素单元151的第二像素区域151b将产生另一第二馈通电压414。Accordingly, the
当显示装置1显示影像的第二画面,第二像素单元153的第一像素区域153a将通过第三薄膜晶体管1535通过第二数据线132充电,同时,因第二栅极驱动信号122的改变,与第二像素单元153的第一像素区域153a以及第二栅极线112耦接的第三电容1531将造成第一像素区域153a的内部电压改变,据此,将使第二像素单元153的第一像素区域153a产生另一第三馈通电压423;而其第二像素区域153b将通过第四薄膜晶体管1537通过第二数据线132充电,同时,因第一栅极驱动信号121的改变,与第二像素单元153的第二像素区域153b以及第一栅极线111耦接的第四电容1533将造成第二像素区域153b的内部电压改变,据此,第二像素单元153的第二像素区域153b将产生另一第四馈通电压424。When the
在显示装置1显示影像的第二画面时,第一像素单元151的第一像素区域151a同时通过第一薄膜晶体管1515的充电,同时,因第一栅极驱动信号121的改变,与第一像素单元151的第一像素区域151a以及第一栅极线111耦接的第一电容1511将造成第一像素区域151a的内部电压改变,而其第二像素区域151b亦同时通过第二薄膜晶体管1517的充电,同时,因第二栅极驱动信号122的改变,与第一像素单元151的第二像素区域151b以及第二栅极线112耦接的第二电容1513将造成第二像素区域151b的内部电压改变。因第一电容1511的电容值小于第二电容1513的电容值,据此,第一像素单元151的第二馈通电压422将大于第一馈通电压421。When the
另外,由于第二像素单元153的第二像素区域153b同时通过第四薄膜晶体管1537的充电,同时,因第一栅极驱动信号121的改变,与第二像素单元153的第二像素区域153b以及第一栅极线111耦接的第四电容1533将造成第二像素区域153b的内部电压改变,而其第一像素区域153a亦同时通过第三薄膜晶体管1535的充电,同时,因第二栅极驱动信号122的改变,与第二像素单元153的第一像素区域153a以及第二栅极线112耦接的第三电容1531将造成第一像素区域153a的内部电压改变。因第四电容1533的电容值小于第三电容1531的电容值,据此,第二像素单元153的第三馈通电压423将大于第四馈通电压424。In addition, because the
本发明并不限制用于使用点反转驱动方法的液晶显示器,虽本实施例仅说明第一像素单元151以及第二像素单元153于点反转驱动方法下的操作与功能。然而,本领域技术人员可通过前段所述的说明得知第一像素单元151以及第二像素单元153于行反转(column inversion)驱动方法或是其它类型的驱动方法下的操作与功能,故在此不再赘述。The present invention is not limited to the liquid crystal display using the dot inversion driving method, although this embodiment only illustrates the operation and function of the
使用于前段所述的显示装置1的驱动流程则如图5所示。首先于执行步骤501,提供第一极性数据信号以及第二极性数据信号。再执行步骤503,于显示装置显示影像的第一画面时,根据第一栅极驱动信号导通第一栅极线,俾使第一馈通电压大于第二馈通电压,且第四馈通电压大于第三馈通电压。最后,执行步骤505,于显示装置显示影像的第二画面时,根据第一栅极驱动信号以及第二栅极驱动信号同时导通第一栅极线以及第二栅极线,以使第二馈通电压大于第一馈通电压,且第三馈通电压大于第四馈通电压。The driving process used in the
由于显示装置1为使用点反转驱动方法的液晶显示器,因此,步骤501提供的第一极性数据信号以及第二极性数据信号将会被交替输出,而影像的第一画面以及第二画面即分别通过交替输出的第一极性数据信号以及第二极性数据信号予以显示。Since the
除了上述步骤,显示装置显示影像的驱动流程亦能执行前段所述的本发明显示装置1所描述的所有操作及功能,本领域技术人员可了解图5所绘示的流程如何基于上述本发明的显示装置1以执行此等操作及功能,故在此不再赘述。In addition to the above-mentioned steps, the driving process of the display device to display images can also perform all the operations and functions described in the
综上所述,本发明所揭露的显示装置不需要增加栅极线以及数据线的数目即可于单一像素单元中分别提供两个不同大小的馈通电压。换句话说,本发明所揭露的显示装置仅仅使用原本数目的栅极线以及数据线,即可提供两个不同大小的馈通电压至单一像素。因此,已知的液晶显示器的大视角色偏现象即可顺利解决。由于栅极线以及数据线的数目并没有增加,因此本发明显示装置的开口率亦得以保持而不降低。To sum up, the display device disclosed in the present invention can provide two different feed-through voltages in a single pixel unit without increasing the number of gate lines and data lines. In other words, the display device disclosed in the present invention can provide two feed-through voltages of different magnitudes to a single pixel by only using the original number of gate lines and data lines. Therefore, the known large viewing angle deviation phenomenon of the liquid crystal display can be solved smoothly. Since the number of gate lines and data lines does not increase, the aperture ratio of the display device of the present invention is also kept without decreasing.
上述的实施例仅用来例举本发明的实施态样,以及阐释本发明的技术特征,并非用来限制本发明的保护范畴。任何本领域技术人员所能轻易完成的改变或均等性安排均属于本发明所主张的范围,本发明的权利范围应以权利要求为准。The above-mentioned embodiments are only used to illustrate the implementation of the present invention and explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalence arrangements that can be easily accomplished by those skilled in the art belong to the scope of the present invention, and the scope of rights of the present invention should be determined by the claims.
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101249783A CN101308304B (en) | 2008-06-25 | 2008-06-25 | display device and pixel structure and driving method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008101249783A CN101308304B (en) | 2008-06-25 | 2008-06-25 | display device and pixel structure and driving method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101308304A true CN101308304A (en) | 2008-11-19 |
CN101308304B CN101308304B (en) | 2010-06-02 |
Family
ID=40124810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2008101249783A Active CN101308304B (en) | 2008-06-25 | 2008-06-25 | display device and pixel structure and driving method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101308304B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101852955B (en) * | 2009-04-02 | 2011-11-16 | 华映视讯(吴江)有限公司 | Liquid crystal display device capable of eliminating afterimages and method thereof |
WO2013071580A1 (en) * | 2011-11-16 | 2013-05-23 | 深圳市华星光电技术有限公司 | Liquid crystal panel driving method |
CN105988251A (en) * | 2015-03-05 | 2016-10-05 | 群创光电股份有限公司 | Display panel and display device |
CN106094377A (en) * | 2016-07-25 | 2016-11-09 | 深圳市华星光电技术有限公司 | A kind of array base palte and display panels |
CN107492360A (en) * | 2017-09-25 | 2017-12-19 | 惠科股份有限公司 | Driving method and display device |
CN109637493A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | driving method and device of display panel |
CN111489712A (en) * | 2019-01-29 | 2020-08-04 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving device and display |
CN111816138A (en) * | 2020-08-19 | 2020-10-23 | 惠科股份有限公司 | Display device and driving method thereof |
-
2008
- 2008-06-25 CN CN2008101249783A patent/CN101308304B/en active Active
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101852955B (en) * | 2009-04-02 | 2011-11-16 | 华映视讯(吴江)有限公司 | Liquid crystal display device capable of eliminating afterimages and method thereof |
WO2013071580A1 (en) * | 2011-11-16 | 2013-05-23 | 深圳市华星光电技术有限公司 | Liquid crystal panel driving method |
CN105988251A (en) * | 2015-03-05 | 2016-10-05 | 群创光电股份有限公司 | Display panel and display device |
CN106094377A (en) * | 2016-07-25 | 2016-11-09 | 深圳市华星光电技术有限公司 | A kind of array base palte and display panels |
CN107492360A (en) * | 2017-09-25 | 2017-12-19 | 惠科股份有限公司 | Driving method and display device |
CN111489712A (en) * | 2019-01-29 | 2020-08-04 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving device and display |
CN109637493A (en) * | 2019-01-30 | 2019-04-16 | 惠科股份有限公司 | driving method and device of display panel |
US11527213B2 (en) | 2019-01-30 | 2022-12-13 | HKC Corporation Limited | Driving method of display panel for reducing viewing angle color deviation and display device |
CN111816138A (en) * | 2020-08-19 | 2020-10-23 | 惠科股份有限公司 | Display device and driving method thereof |
WO2022036845A1 (en) * | 2020-08-19 | 2022-02-24 | 惠科股份有限公司 | Display device and driving method therefor |
Also Published As
Publication number | Publication date |
---|---|
CN101308304B (en) | 2010-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11538434B2 (en) | Timing controller for adjusting refresh rates based on image signals and method for driving display device | |
CN101308304B (en) | display device and pixel structure and driving method thereof | |
CN102855863B (en) | Display device and method used for driving the same | |
US8917228B2 (en) | Liquid crystal display apparatus | |
CN107481689B (en) | Image processing device and processing method thereof | |
US10283061B2 (en) | Pixel structure, array substrate, and display panel | |
CN105807511B (en) | Display panel, display device and driving method thereof | |
US9389621B2 (en) | Compensation circuit for common voltage according to gate voltage | |
TWI450007B (en) | Pixel structure | |
TW200425019A (en) | Liquid crystal display device | |
US8711075B2 (en) | Liquid crystal display wherein the data lines covered by each pixel electrode are supplied with data signals of opposite polarities | |
CN101581864A (en) | Liquid crystal display panel and pixel driving method thereof | |
CN101587694A (en) | Liquid crystal display device and driving method thereof | |
CN102194399B (en) | Driving method of semi-source display device | |
US10353258B2 (en) | Liquid crystal display panel and liquid crystal display device | |
US7868866B2 (en) | Liquid crystal display having OCB mode dummy liquid crystal cells and driving method thereof | |
US8471792B2 (en) | Display device and driving method of the same | |
TWI396164B (en) | Display panel and electronic system utilizing the same | |
US8164624B2 (en) | Data converting device, method thereof, and liquid crystal display device having the same | |
US20130314395A1 (en) | Pixel value adjusting method and image display system utilizing the same | |
US20100309230A1 (en) | Light emitting device and method of driving the same | |
US20200225547A1 (en) | Display panel and manufacturing method thereof, and display device | |
CN104992690A (en) | Display panel, driving method thereof, and display device | |
TWI382223B (en) | Display apparatus, pixel structure and driving method thereof | |
CN101231810A (en) | Frequency adjusting circuit, method and display device comprising frequency adjusting circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |