CN203519963U - Array substrate and display device - Google Patents
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Abstract
Description
Translated fromChinese技术领域technical field
本实用新型涉及显示领域，具体地，涉及一种阵列基板和一种包括所述阵列基板的显示装置。The utility model relates to the display field, in particular to an array substrate and a display device comprising the array substrate.
背景技术Background technique
触摸屏是目前最新的信息输入设备，它能简单、方便、自然地实现人机交互，为人们提供一种全新的多媒体人机交互方法，由于其具有触摸反应灵敏、支持多点触摸等优点，极大地满足了人们的视觉和触觉的享受。Touch screen is the latest information input device at present. It can realize human-computer interaction simply, conveniently and naturally, and provide people with a brand-new method of multimedia human-computer interaction. The earth satisfies people's visual and tactile enjoyment.
目前，触控屏按照组成结构可以分为：外挂式触控屏（Add onMode Touch Panel）、覆盖表面式触控屏（On Cell Touch Panel）以及内嵌式触控屏（In Cell Touch Panel）。根据触控屏结构的不同，触控屏设计的方案也有多种，以具有触控功能的液晶显示装置为例，比较常见的是将液晶显示装置的显示屏和触控屏分开制作，即，可以在液晶显示装置的显示屏的内部、表面或外部做出感应电极、驱动电极，并连接相应的感应信号线和驱动信号线。在人体触摸触控屏的过程中，通过感应电极和驱动电极之间的电场变化，从而“感知”人体的触碰来实现触控功能。At present, touch screens can be divided into three types according to their composition: Add onMode Touch Panel, On Cell Touch Panel and In Cell Touch Panel. According to the different structures of the touch screen, there are various design schemes for the touch screen. Taking the liquid crystal display device with touch function as an example, it is more common to manufacture the display screen and the touch screen of the liquid crystal display device separately, that is, The sensing electrodes and driving electrodes can be formed inside, on the surface or outside of the display screen of the liquid crystal display device, and connected to corresponding sensing signal lines and driving signal lines. When the human body touches the touch screen, the touch function is realized by "sensing" the human body's touch through the change of the electric field between the sensing electrode and the driving electrode.
这种显示屏和触控屏分开制作的显示装置的结构，由于显示装置中具有分离的多种电极（显示屏中有像素电极，触控屏中有感应电极和驱动电极），导致显示装置的制造工艺步骤较多且制程重复，造成电极材料和制程浪费，致使显示装置的生产成本提高；同时，显示屏和触控屏还需后续的组装，进一步增加了工艺步骤且降低了产品良率。The structure of the display device in which the display screen and the touch screen are made separately has a variety of separate electrodes (pixel electrodes in the display screen, sensing electrodes and driving electrodes in the touch screen), resulting in the Many manufacturing process steps and repetitive processes lead to waste of electrode materials and processes, resulting in increased production costs of display devices; at the same time, display screens and touch screens require subsequent assembly, which further increases process steps and reduces product yield.
因此，如何降低显示装置的生产成本，减少工艺步骤并进一步提高产品良率，成为目前亟待解决的技术问题。Therefore, how to reduce the production cost of the display device, reduce the process steps and further improve the product yield has become a technical problem to be solved urgently.
实用新型内容Utility model content
本实用新型的目的在于提供一种阵列基板和一种包括该阵列基板的显示装置，该阵列基板通过将同一像素区域内的两个电极分时复用为显示用的像素电极与触控用的感应电极和驱动电极，从而减少了阵列基板的工艺步骤，节约了电极材料，降低产品成本。The purpose of the present utility model is to provide an array substrate and a display device comprising the array substrate. The array substrate time-multiplexes two electrodes in the same pixel area as a pixel electrode for display and an electrode for touch control. The sensing electrodes and the driving electrodes reduce the process steps of the array substrate, save electrode materials, and reduce product costs.
解决本实用新型技术问题所采用的技术方案是该阵列基板，包括显示区和非显示区，所述显示区内设置有多组源极线和多条栅极线，多组所述源极线和多条所述栅极线交叉并将所述显示区划分为多个像素区域，其中，所述像素区域内设置有第一电极和第二电极，所述第一电极和所述第二电极相邻且电性隔离。The technical solution adopted to solve the technical problem of the utility model is that the array substrate includes a display area and a non-display area, and multiple sets of source lines and multiple gate lines are arranged in the display area, and multiple sets of source lines Intersect with a plurality of gate lines and divide the display area into a plurality of pixel areas, wherein a first electrode and a second electrode are arranged in the pixel area, and the first electrode and the second electrode Adjacent and electrically isolated.
优选的是，一组所述源极线包括第一源极线和第二源极线，所述像素区域内设置有第一薄膜晶体管和第二薄膜晶体管，所述第一薄膜晶体管的漏极与所述第一电极电连接，所述第一薄膜晶体管的源极与所述第一源极线电连接；所述第二薄膜晶体管的漏极与所述第二电极电连接，所述第二薄膜晶体管的源极与所述第二源极线电连接。Preferably, the set of source lines includes a first source line and a second source line, a first thin film transistor and a second thin film transistor are arranged in the pixel region, and the drain of the first thin film transistor electrically connected to the first electrode, the source of the first thin film transistor is electrically connected to the first source line; the drain of the second thin film transistor is electrically connected to the second electrode, and the first The sources of the two thin film transistors are electrically connected to the second source line.
优选的是，在所述像素区域中，所述第一薄膜晶体管的栅极和所述第二薄膜晶体管的栅极与同一条所述栅极线电连接。Preferably, in the pixel region, the gate of the first thin film transistor and the gate of the second thin film transistor are electrically connected to the same gate line.
优选的是，所述第一电极和所述第二电极为狭缝状或板状。Preferably, the first electrode and the second electrode are slit-shaped or plate-shaped.
一种显示装置，包括上述的阵列基板。A display device includes the above-mentioned array substrate.
优选的是，该显示装置包括栅极驱动器和源极驱动器，所述栅极驱动器和所述源极驱动器设置在所述非显示区，所述栅极驱动器与多条所述栅极线电连接，所述源极驱动器与多组所述源极线电连接。Preferably, the display device includes a gate driver and a source driver, the gate driver and the source driver are arranged in the non-display area, and the gate driver is electrically connected to a plurality of the gate lines , the source driver is electrically connected to multiple sets of the source lines.
优选的是，所述显示装置还包括电压转换器，所述电压转换器设置在所述非显示区，所述电压转换器与所述源极驱动器电连接，用于接收所述源极驱动器发出的数据信号；所述电压转换器还分别与所述第一薄膜晶体管的源极和所述第二薄膜晶体管的源极电连接，用于向所述第一薄膜晶体管的源极和所述第二薄膜晶体管的源极发送数据信号。Preferably, the display device further includes a voltage converter, the voltage converter is arranged in the non-display area, and the voltage converter is electrically connected to the source driver for receiving the data signal; the voltage converter is also electrically connected to the source of the first thin film transistor and the source of the second thin film transistor, for providing the source of the first thin film transistor and the second thin film transistor The sources of the two thin film transistors send data signals.
优选的是，所述显示装置还包括发射器和触控控制器，所述发射器和所述触控控制器设置在所述非显示区，所述发射器与所述电压转换器电连接，用于向所述电压转换器发出控制信号；所述触控控制器与所述电压转换器电连接，所述电压转换器通过所述第一薄膜晶体管的漏极与所述第一电极电连接、还通过所述第二薄膜晶体管的漏极与所述第二电极电连接，所述触控控制器用于通过所述电压转换器获取感应信号和发送驱动信号。Preferably, the display device further includes an emitter and a touch controller, the emitter and the touch controller are arranged in the non-display area, the emitter is electrically connected to the voltage converter, Used to send a control signal to the voltage converter; the touch controller is electrically connected to the voltage converter, and the voltage converter is electrically connected to the first electrode through the drain of the first thin film transistor , and also electrically connected to the second electrode through the drain of the second thin film transistor, and the touch controller is used to obtain a sensing signal and send a driving signal through the voltage converter.
优选的是，所述显示装置还包括彩膜基板，所述彩膜基板中包括有公共电极，所述公共电极与所述第一电极和所述第二电极在正投影方向上至少部分重叠；或者，所述阵列基板中还包括有公共电极，所述公共电极与所述第一电极和所述第二电极在正投影方向上至少部分重叠。Preferably, the display device further includes a color filter substrate, the color filter substrate includes a common electrode, and the common electrode at least partially overlaps with the first electrode and the second electrode in an orthographic projection direction; Alternatively, the array substrate further includes a common electrode, and the common electrode at least partially overlaps with the first electrode and the second electrode in an orthographic projection direction.
本实用新型的有益效果是：本实用新型提供的阵列基板，利用同一像素区域中的两个电极分时段实现显示功能和触控功能，同时将相应的源极线分时段实现数据线功能和感应信号线/驱动信号线功能，也即将像素电极和感应电极/驱动电极合二为一，在现有的显示装置具有显示用的像素电极的基础上，不需再额外制备触控的感应电极/驱动电极和感应信号线/驱动信号线，节约了电极材料，极大地简化了工艺步骤，降低生产成本，提高了产品良率。The beneficial effects of the utility model are: the array substrate provided by the utility model realizes the display function and the touch function by using two electrodes in the same pixel area in time intervals, and at the same time realizes the data line function and the sensing function in the corresponding source lines in time intervals. The signal line/drive signal line function is to combine the pixel electrode and the sensing electrode/drive electrode into one. On the basis of the existing display device having the pixel electrode for display, there is no need to prepare additional touch sensing electrodes/ The driving electrodes and sensing signal lines/driving signal lines save electrode materials, greatly simplify process steps, reduce production costs, and improve product yield.
附图说明Description of drawings
附图是用来提供对本实用新型的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本实用新型，但并不构成对本实用新型的限制。在附图中：The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, together with the following specific embodiments, are used to explain the utility model, but do not constitute a limitation to the utility model. In the attached picture:
图1为本实用新型实施例1中阵列基板的平面示意图；FIG. 1 is a schematic plan view of an array substrate in
图2为对应着图1中AA剖切线的阵列基板的剖视图；FIG. 2 is a cross-sectional view of the array substrate corresponding to the cut line AA in FIG. 1;
图3为本实用新型实施例1中阵列基板的驱动方法的时序图；3 is a timing diagram of the driving method of the array substrate in
图4为本实用新型实施例1中显示装置的驱动电路示意图；4 is a schematic diagram of a drive circuit of a display device in
图5为本实用新型实施例2中对应着图1中AA剖切线位置处的阵列基板的剖视图；Fig. 5 is a cross-sectional view of the array substrate at the position corresponding to the cutting line AA in Fig. 1 in Embodiment 2 of the present utility model;
其中，附图标记说明：Wherein, the reference numerals explain:
1-第一基板；2-第一电极；3-第二电极；4-第一源极线；5-第二源极线；6-第一薄膜晶体管；7-第二薄膜晶体管；8-绝缘层；9-公共电极；10-栅极线；11-阵列基板；12-彩膜基板；13-背光源；14-液晶分子；15-源极驱动器；16-栅极驱动器；17-电压转换器；18-触控控制器；19-发射器；20-第一时间段；21-第二时间段。1-first substrate; 2-first electrode; 3-second electrode; 4-first source line; 5-second source line; 6-first thin film transistor; 7-second thin film transistor; 8- Insulation layer; 9-common electrode; 10-gate line; 11-array substrate; 12-color film substrate; 13-backlight; 14-liquid crystal molecules; 15-source driver; 16-gate driver; 17-voltage Converter; 18-touch controller; 19-transmitter; 20-first time period; 21-second time period.
具体实施方式Detailed ways
以下结合附图对本实用新型的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本实用新型，并不用于限制本实用新型。The specific embodiment of the utility model will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the utility model, and are not intended to limit the utility model.
一种阵列基板，包括显示区和非显示区，所述显示区内设置有多组源极线和多条栅极线，多组所述源极线和多条所述栅极线交叉并将所述显示区划分为多个像素区域，其中，所述像素区域内设置有第一电极和第二电极，所述第一电极和所述第二电极相邻且电性隔离，所述第一电极和所述第二电极分时复用为显示用的像素电极与触控用的感应电极和驱动电极。An array substrate, including a display area and a non-display area, wherein multiple sets of source lines and multiple gate lines are arranged in the display area, multiple sets of source lines and multiple gate lines cross and The display area is divided into a plurality of pixel areas, wherein a first electrode and a second electrode are arranged in the pixel area, the first electrode and the second electrode are adjacent and electrically isolated, and the first The electrodes and the second electrodes are time-divisionally multiplexed into pixel electrodes for display and sensing electrodes and driving electrodes for touch control.
一种显示装置，包括上述的阵列基板。A display device includes the above-mentioned array substrate.
实施例1：Example 1:
如图1、2所示，本实施例提供一种阵列基板，该阵列基板包括显示区和非显示区，显示区内设置有多组源极线和多条栅极线，多组源极线和多条栅极线交叉并将显示区划分为多个像素区域，像素区域内设置有第一电极2和第二电极3，第一电极2和第二电极3相邻且电性隔离，第一电极2和第二电极3分时复用为显示用的像素电极与触控用的感应电极和驱动电极。As shown in Figures 1 and 2, this embodiment provides an array substrate, the array substrate includes a display area and a non-display area, multiple sets of source lines and multiple gate lines are arranged in the display area, multiple sets of source lines Intersect with a plurality of gate lines and divide the display area into a plurality of pixel areas, the first electrode 2 and the second electrode 3 are arranged in the pixel area, the first electrode 2 and the second electrode 3 are adjacent and electrically isolated, the second electrode The first electrode 2 and the second electrode 3 are time-divisionally multiplexed as pixel electrodes for display and sensing electrodes and driving electrodes for touch control.
结合图1和图2，一组源极线包括第一源极线4和第二源极线5，像素区域内设置有第一薄膜晶体管6和第二薄膜晶体管7，第一薄膜晶体管6的漏极与第一电极2电连接，第一薄膜晶体管6的源极与第一源极线4电连接；第二薄膜晶体管7的漏极与第二电极3电连接，第二薄膜晶体管7的源极与第二源极线5电连接。即在本实施例中，优选同一像素区域内的两个电极分别各电连接一个薄膜晶体管，以使得每一电极的工作独立。1 and 2, a group of source lines includes a first source line 4 and a second source line 5, a first thin film transistor 6 and a second thin film transistor 7 are arranged in the pixel area, and the first thin film transistor 6 The drain is electrically connected to the first electrode 2, the source of the first thin film transistor 6 is electrically connected to the first source line 4; the drain of the second thin film transistor 7 is electrically connected to the second electrode 3, and the drain of the second thin film transistor 7 is electrically connected to the second electrode 3. The source is electrically connected to the second source line 5 . That is, in this embodiment, preferably, two electrodes in the same pixel area are electrically connected to a thin film transistor, so that each electrode works independently.
相应地，每组源极线包括的两根源极线各与一个薄膜晶体管电连接，以使得在第一电极和第二电极分时复用为触控用的感应电极和驱动电极时，第一源极线和第二源极线也同时分时复用为感应信号线Rx和驱动信号线Tx。Correspondingly, the two source lines included in each group of source lines are each electrically connected to a thin film transistor, so that when the first electrode and the second electrode are time-multiplexed as sensing electrodes and driving electrodes for touch control, the first The source line and the second source line are also time-divisionally multiplexed into the sensing signal line Rx and the driving signal line Tx.
在每个像素区域中，第一薄膜晶体管6和第二薄膜晶体管7可以分别对应一条栅极线10。优选地，如图1所示，在像素区域内，第一薄膜晶体管6和第二薄膜晶体管7与同一条栅极线10电连接，从而可以使阵列基板具有更加简单的结构，有利于加工制造。在栅极线10与第一源极线4的共同作用下，第一薄膜晶体管6导通时，第一薄膜晶体管6的漏极向第一电极2通电；在栅极线10与第二源极线5的共同作用下，第二薄膜晶体管7导通时，第二薄膜晶体管7的漏极向第二电极3通电。In each pixel area, the first thin film transistor 6 and the second thin film transistor 7 may respectively correspond to one
对照图1和图2，这里需要说明的是，第一薄膜晶体管6和第二薄膜晶体管7设置在第一基板1（为阵列基板11的一部分）中，在图2中未具体示出。从图2中还可见，第一薄膜晶体管6和第二薄膜晶体管7的上方设置有公共电极9，第一薄膜晶体管6和第二薄膜晶体管7、第一电极2和第二电极3、公共电极9之间均各设置有能起到电隔离作用的绝缘层8，根据阵列基板11中具体的上下两层的性质，绝缘层8可以为钝化层或平坦层，且一般采用透明材料形成，例如采用硅氧化物、硅氮化物、铪氧化物、硅氮氧化物或铝氧化物等形成，由于这些层的结构与形成工艺与现有技术相同，因此这里不再赘述；同时，由于这些绝缘层一般采用透明材料形成，对图1中的平面图的观察不会造成阻碍，因此在图1的平面示意图中略去绝缘层8的示意。Comparing FIG. 1 and FIG. 2 , what needs to be explained here is that the first thin film transistor 6 and the second thin film transistor 7 are arranged in the first substrate 1 (which is a part of the array substrate 11 ), which are not specifically shown in FIG. 2 . It can also be seen from FIG. 2 that a
该阵列基板应用于显示装置的液晶显示面板中时，通过显示装置中的源极驱动器向阵列基板通电时，可以使得第一电极2与第二电极3分时复用为显示用的像素电极、触控用的感应电极和驱动电极。这里应该理解的是，对同一像素区域内设置的两个电极的具体位置并没有特殊的要求，只要将第一电极2和第二电极3设置为相邻且电性隔离即可，也即该两个电极可以平行纵向排列或平行横向排列，甚至可以错落排列，只要能保证该两个电极分时复用为显示用像素电极、触控用感应电极和驱动电极即可。When the array substrate is applied to a liquid crystal display panel of a display device, when power is supplied to the array substrate through a source driver in the display device, the first electrode 2 and the second electrode 3 can be time-divisionally multiplexed as pixel electrodes for display, Sensing electrodes and driving electrodes for touch control. It should be understood here that there is no special requirement on the specific positions of the two electrodes arranged in the same pixel area, as long as the first electrode 2 and the second electrode 3 are arranged adjacent and electrically isolated, that is, the The two electrodes can be arranged vertically or horizontally in parallel, or even arranged alternately, as long as the two electrodes can be time-multiplexed as pixel electrodes for display, sensing electrodes for touch control and driving electrodes.
本实施例还提供一种包括上述阵列基板的显示装置。本实施例以高级超维场转换（ADvanced Super Dimension Switch，ADSDS，简称ADS）模式的液晶显示装置为例进行详细说明。高级超维场转模式的液晶显示装置中，通过同一平面内狭缝电极边缘所产生的电场以及狭缝电极层与板状电极层间产生的电场形成多维电场，使液晶盒内狭缝电极间、电极正上方所有取向液晶分子都能够产生旋转，从而提高了液晶工作效率并增大了透光效率。高级超维场开关技术可以提高液晶显示装置的画面品质，具有高分辨率、高透过率、低功耗、宽视角、高开口率、低色差、无挤压水波纹（push Mura）等优点。This embodiment also provides a display device including the above-mentioned array substrate. In this embodiment, a liquid crystal display device in an Advanced Super Dimension Switch (ADvanced Super Dimension Switch, ADSDS, ADS for short) mode is taken as an example to describe in detail. In the liquid crystal display device of advanced ultra-dimensional field switching mode, the electric field generated by the edge of the slit electrode in the same plane and the electric field generated between the slit electrode layer and the plate electrode layer form a multidimensional electric field, so that the gap between the slit electrodes in the liquid crystal cell All oriented liquid crystal molecules directly above the electrodes can be rotated, thereby improving the working efficiency of the liquid crystal and increasing the light transmission efficiency. Advanced ultra-dimensional field switching technology can improve the picture quality of liquid crystal display devices, and has the advantages of high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low chromatic aberration, and no push Mura. .
在本实施例的ADSDS模式的液晶显示装置中，除了上述的阵列基板外还包括彩膜基板12，彩膜基板12与阵列基板11相对设置。阵列基板11中还包括有公共电极9，公共电极9与第一电极2和第二电极3在正投影方向上至少部分重叠。在本实施例中，第一电极2与第二电极3均为狭缝状或板状，相应的，公共电极9可以为板状或狭缝状。In the ADSDS mode liquid crystal display device of this embodiment, in addition to the above-mentioned array substrate, it also includes a
本实施例的显示装置中，彩膜基板12和阵列基板11之间设置有液晶层，液晶层包括多个液晶分子14。由于液晶本身不发光，在该显示装置中靠近阵列基板11的一侧还设置有背光源13。In the display device of this embodiment, a liquid crystal layer is disposed between the
如前所述，阵列基板11包括第一薄膜晶体管6和第二薄膜晶体管7。如图3所示，该显示装置还包括栅极驱动器16和源极驱动器15，栅极驱动器16和源极驱动器15设置在非显示区内，栅极驱动器16与多条栅极线10电连接，栅极驱动器16产生扫描信号电压，通过栅极线10传送至与栅极线10电连接的薄膜晶体管的栅极，向第一薄膜晶体管6和第二薄膜晶体管7提供扫描信号，以控制第一薄膜晶体管6和第二薄膜晶体管7的导通和截止。As mentioned above, the
同样，为使得阵列基板具有更加简单的结构，有利于加工制造，优选在像素区域中，第一薄膜晶体管6的栅极和第二薄膜晶体管7的栅极与同一条栅极线10电连接。Likewise, in order to make the array substrate have a simpler structure and facilitate manufacturing, preferably in the pixel region, the gate of the first thin film transistor 6 and the gate of the second thin film transistor 7 are electrically connected to the
源极驱动器15与多组源极线电连接，源极驱动器15产生数据信号电压，通过第一源极线4传送至与第一源极线4电连接的第一薄膜晶体管6的源极，并通过第二源极线5传送至与第二源极线5电连接的第二薄膜晶体管7的源极。第一电极2通过与之连接的第一薄膜晶体管6的漏极间接与源极驱动器15电连接，获得视频数据信号；以及，第二电极3通过与之连接的第二薄膜晶体管7的漏极间接与源极驱动器15电连接，获得视频数据信号。The
在本实施例中，显示装置还包括电压转换器17，电压转换器17设置在非显示区，电压转换器17与源极驱动器15电连接，用于接收源极驱动器15发出的数据信号；电压转换器17还分别与第一薄膜晶体管6的源极和第二薄膜晶体管7的源极电连接，用于向第一薄膜晶体管6的源极和第二薄膜晶体管7的源极发送数据信号。In this embodiment, the display device further includes a voltage converter 17, the voltage converter 17 is arranged in the non-display area, the voltage converter 17 is electrically connected to the
为了便于控制第一电极2和第二电极3在不同的时间段分别起到显示和触控的作用，优选地，如图3所示，显示装置还包括发射器19和触控控制器18，发射器19和触控控制器18设置在非显示区内，发射器19与电压转换器17电连接，用于向电压转换器17发出控制信号；触控控制器18与电压转换器17电连接，电压转换器17通过第一薄膜晶体管6的漏极与第一电极2电连接、还通过第二薄膜晶体管7的漏极与第二电极3电连接，触控控制器18用于通过电压转换器17获取感应信号和发送驱动信号。In order to facilitate the control of the first electrode 2 and the second electrode 3 to play the role of display and touch control respectively in different time periods, preferably, as shown in FIG. 3 , the display device further includes a
也即，在本实施例中，电压转换器17可以将源极驱动器15提供的数据信号，在第一时间段内分别经由第一薄膜晶体管6和第二薄膜晶体管7同时提供至第一电极2和第二电极3（此时第一电极2和第二电极3均为像素电极），以进行画面显示；而在第二时间段内，电压转换器17可以接收由第一电极2（此时第一电极2为感应电极）和第二电极3（此时第二电极3为驱动电极）因受人体触碰而获得的与参考电压值不同的电压，经触控控制器18计算得到触摸位置坐标，以进行触摸控制。That is, in this embodiment, the voltage converter 17 can simultaneously provide the data signal provided by the
在本实施例中，可以将像素区域内与第一电极2对应的部分称为第一像素区域，与第二电极3对应的部分称为第二像素区域。也就是说，在显示装置工作过程中，第一电极2与第二电极3或者均同时接受与之电连接的第一薄膜晶体管6的漏极电压和第二薄膜晶体管7的漏极电压，驱动液晶分子发生偏转，以进行画面显示；或者，当人体在第一像素区域和第二像素区域之间发生触碰时，由于第一电极2与第二电极3之间形成的电场发生变化，由此感应触碰的发生，进而达到触摸控制的目的。In this embodiment, the part corresponding to the first electrode 2 in the pixel region may be referred to as a first pixel region, and the part corresponding to the second electrode 3 may be referred to as a second pixel region. That is to say, during the working process of the display device, the first electrode 2 and the second electrode 3 or both receive the drain voltage of the first thin film transistor 6 and the drain voltage of the second thin film transistor 7 electrically connected thereto at the same time, drive The liquid crystal molecules are deflected for screen display; or, when the human body touches between the first pixel area and the second pixel area, due to the change of the electric field formed between the first electrode 2 and the second electrode 3, the The occurrence of this sensing touch can achieve the purpose of touch control.
这里应该理解的是，本实施例中触控控制器18同时集成了触控感应和触控驱动的功能，但是，本实施例并不限定触控控制器必须为集成式，为降低芯片成本，本实施例中的触控控制器也可以分别由具有接收触控感应的功能的芯片和具有发送触控驱动的功能的芯片来组合实现。It should be understood here that the touch controller 18 in this embodiment integrates the functions of touch sensing and touch driving at the same time. However, this embodiment does not limit that the touch controller must be integrated. In order to reduce chip costs, The touch controller in this embodiment may also be implemented by combining a chip with a function of receiving touch sensing and a chip with a function of sending touch drive.
相应的，本实施例还提供一种显示装置中阵列基板的驱动方法，基于如图1、2所示的阵列基板的结构，阵列基板的显示区内包括多组源极线和多条栅极线，多组源极线和多条栅极线相交并将显示区划分为多个像素区域，像素区域内相邻设置有电性隔离的第一电极和第二电极，该驱动方法包括将第一电极和第二电极分时复用为显示用像素电极、触控用感应电极和驱动电极。Correspondingly, this embodiment also provides a method for driving an array substrate in a display device. Based on the structure of the array substrate shown in FIGS. 1 and 2, the display area of the array substrate includes multiple sets of source lines and multiple gates lines, a plurality of groups of source lines and a plurality of gate lines intersect and divide the display area into a plurality of pixel areas, and electrically isolated first electrodes and second electrodes are adjacently arranged in the pixel areas, and the driving method includes the first The first electrode and the second electrode are time-divisionally multiplexed into a display pixel electrode, a touch sensing electrode and a driving electrode.
为保证显示装置的正常显示，如图4所示，驱动方法包括将第一电极2和第二电极3在第一时间段20内作为显示用像素电极，在第二时间段21内作为触控用感应电极和驱动电极，第一时间段20大于等于第二时间段21，第一时间段20与第二时间段21之和等于帧周期。In order to ensure the normal display of the display device, as shown in FIG. 4 , the driving method includes using the first electrode 2 and the second electrode 3 as display pixel electrodes in the
同样的，基于上述阵列基板的结构，即像素区域中设置有第一薄膜晶体管6和第二薄膜晶体管7，一组源极线包括第一源极线4和第二源极线5，第一薄膜晶体管6的漏极与第一电极2电连接，第一薄膜晶体管6的源极与第一源极线4电连接；第二薄膜晶体管7的漏极与第二电极3电连接，第二薄膜晶体管7的源极与第二源极线5电连接，该驱动方法包括通过第一源极线4向第一薄膜晶体管6的源极输出第一信号，并且通过第二源极线5向第二薄膜晶体管7的源极输出第二信号，第一信号和第二信号在第一时间段20内为视频数据信号，第一信号在第二时间段21内为触控感应信号，第二信号在第二时间段21内为触控驱动信号；第一源极线4在第一时间段20内为数据线，在第二时间段21内为感应信号线；第二源极线5在第一时间段20内为数据线，在第二时间段21内为驱动信号线。Similarly, based on the above structure of the array substrate, that is, the pixel area is provided with the first thin film transistor 6 and the second thin film transistor 7, a set of source lines includes the first source line 4 and the second source line 5, the first The drain of the thin film transistor 6 is electrically connected to the first electrode 2, the source of the first thin film transistor 6 is electrically connected to the first source line 4; the drain of the second thin film transistor 7 is electrically connected to the second electrode 3, and the second The source of the thin film transistor 7 is electrically connected to the second source line 5, and the driving method includes outputting a first signal to the source of the first thin film transistor 6 through the first source line 4, and outputting a first signal to the source electrode of the first thin film transistor 6 through the second source line 5. The source of the second thin film transistor 7 outputs a second signal, the first signal and the second signal are video data signals in the
本实施例的驱动方法还包括通过栅极线10向第一薄膜晶体管6和第二薄膜晶体管7提供扫描信号。扫描信号用于控制与栅极线10电连接的薄膜晶体管的导通和截止。由于在像素区域中，第一薄膜晶体管6的栅极和第二薄膜晶体管7的栅极与同一条栅极线10电连接，该驱动方法包括通过栅极线10向第一薄膜晶体管6的栅极与第二薄膜晶体管7的栅极输出扫描信号，以分别控制第一薄膜晶体管6与第二薄膜晶体管7的导通和截止。其中，扫描信号为方波脉冲信号。The driving method of this embodiment further includes providing scan signals to the first thin film transistor 6 and the second thin film transistor 7 through the
如图4所示，在实施例所提供的实施方式中，显示装置在显示一帧画面的帧周期的时间分成两个时间段，第一时间段20为显示时间段，第二时间段21为触控时间段，第一时间段20先于第二时间段21。第一薄膜晶体管6和第二薄膜晶体管7在第一时间段20内同时被选中、且至少各导通一次，第一薄膜晶体管6和第二薄膜晶体管7在第二时间段21内同时被选中、且至少各导通一次。As shown in FIG. 4 , in the implementation provided in the embodiment, the display device is divided into two time periods when displaying the frame period of one frame picture, the
同时，从图4中可以看出，扫描信号为方波脉冲信号，为便于控制，扫描信号在第一时间段20内的方波宽度可以等于在第二时间段21内的方波宽度。当然，也可以根据第一时间段20和第二时间段21的比例，合理安排扫描信号在第一时间段20内和第二时间段21内的方波宽度，使得第一时间段20内的方波宽度小于或大于在第二时间段21内的方波宽度。Meanwhile, it can be seen from FIG. 4 that the scanning signal is a square wave pulse signal. For ease of control, the square wave width of the scanning signal in the
为保证阵列基板11中第一电极2和第二电极3分时复用为显示用像素电极、触控用感应电极和驱动电极，在第一时间段20内，多条栅极线10的扫描信号依次循环扫描以选中与栅极线10电连接的第一薄膜晶体管6和第二薄膜晶体管7；在第二时间段21内，依次循环扫描以选中与栅极线10电连接的第一薄膜晶体管6和第二薄膜晶体管7。In order to ensure that the first electrodes 2 and the second electrodes 3 in the
优选的是，在第一时间段20内的扫描信号仅包括一个窄脉冲高电平信号，阵列基板11中不同行的第一薄膜晶体管6和第二薄膜晶体管7在第一时间段20内依次逐行导通，实现画面显示；在第二时间段21内的扫描信号仅包括一个窄脉冲高电平信号，阵列基板11中不同行的第一薄膜晶体管6和第二薄膜晶体管7在第二时间段21内依次逐行导通，实现触摸控制。在本实施例所提供的显示装置中，可以通过发射器19和电压转换器17共同作用以实现上述步骤。Preferably, the scanning signal in the
这里应该理解的是，第一薄膜晶体管和第二薄膜晶体管与同一栅极线电连接为优选方案，相应优选的是第一薄膜晶体管和第二薄膜晶体管由同一扫描信号选中或不选中。容易理解，扫描信号也可以不限定为同一个，即可以设定第一薄膜晶体管与第一扫描线电连接，由第一扫描信号控制第一薄膜晶体管的选中或不选中；设定第二薄膜晶体管与第二扫描线电连接，由第二扫描信号控制第二薄膜晶体管的选中或不选中，只要能协调好第一电极与第二电极在不同时段内分时段实现显示功能和触控功能即可。It should be understood here that it is a preferred solution for the first thin film transistor and the second thin film transistor to be electrically connected to the same gate line, and correspondingly preferably the first thin film transistor and the second thin film transistor are selected or not selected by the same scanning signal. It is easy to understand that the scanning signal may not be limited to the same one, that is, the first thin film transistor may be set to be electrically connected to the first scanning line, and the selection or non-selection of the first thin film transistor may be controlled by the first scanning signal; The transistor is electrically connected to the second scanning line, and the selection or non-selection of the second thin film transistor is controlled by the second scanning signal. As long as the first electrode and the second electrode can be coordinated to realize the display function and the touch function in different periods of time, then Can.
以本实施例所提供的ADSDS模式的液晶显示装置为例，结合图4详细说明分时段实现显示功能和触控功能的过程。在对显示装置进行驱动时，显示装置的具体工作过程如下：Taking the liquid crystal display device in ADSDS mode provided by this embodiment as an example, the process of realizing the display function and the touch function by time period will be described in detail with reference to FIG. 4 . When the display device is driven, the specific working process of the display device is as follows:
（1）在第一时间段20内：阵列基板11中的栅极线10（Gate1、Gate2......Gate n）依次被选中，栅极驱动器16中的扫描信号通过栅极线10依次顺序写入与之电连接的第一薄膜晶体管6的栅极和第二薄膜晶体管7的栅极（该处仅以同一像素区域内的两个薄膜晶体管为例）；同时，电压转换器17在接收到发射器19发出的控制信号的情况下，接收来自源极驱动器16的数据信号，并通过第一源极线4（此时为数据线Data）向第一薄膜晶体管6的源极提供数据信号电压，同时通过第二源极线5（此时为数据线Data）向第二薄膜晶体管7的源极提供数据信号电压，即显示数据信号经第一源极线4和第二源极线5依次写入第一薄膜晶体管6和第二薄膜晶体管7的源极，当第一薄膜晶体管6和第二薄膜晶体管7导通时，第一电极2和第二电极3得电，与公共电极9（像素电极与之在正投影方向上至少部分重叠）共同作用形成电场，作用在液晶分子上，驱动阵列基板11与彩膜基板12之间的液晶分子14，以使得液晶分子14的偏转方向发生改变，实现画面显示，此时第一电极2和第二电极3作为显示用的像素电极。(1) In the first time period 20: the gate lines 10 (Gate1, Gate2...Gate n) in the
（2）在第二时间段21内：阵列基板11中的栅极线10（Gate1、Gate2......Gate n）同时选中，栅极驱动器16的扫描信号通过栅极线10依次顺序写入与之电连接的第一薄膜晶体管6和第二薄膜晶体管7（该处同样仅以同一像素区域内的两个薄膜晶体管为例）；此时，第一电极2作为触控用的感应电极，第二电极3作为触控用的驱动电极，同一像素区域内的第一电极2和第二电极3形成一对感应电极和驱动电极的结构；相应的，与第一电极2电连接的第一薄膜晶体管6电连接的第一源极线4为感应信号线Rx，与第二电极3电连接的第二薄膜晶体管7电连接的第二源极线5为驱动信号线Tx，相邻像素区域内的感应电极线Rx和驱动电极线Tx依次交替设置。当Gate1、Gate2......Gate n被选中时，感应电极通过感应信号线Rx经由电压转换器17与触控控制器18相连通，驱动电极通过驱动信号线Tx经由电压转换器17与触控控制器18相连通。电压转换器17在接收到发射器19发出的控制信号的情况下，通过驱动信号线Tx对作为驱动电极的第二电极3加载触控驱动信号，并检测感应信号线Rx返回的通过感应电容（此时第一电极2和第二电极3分别为感应电容的两个极板）耦合出的电压信号，在此过程中，有人体接触第一像素区域和第二像素区域（相当于对应着像素区域的触控屏）时，人体电场就会作用在感应电容上，使感应电容的电容值发生变化，进一步使得耦合出的电压值发生变化，进而改变触控感应信号线Tx返回电压转换器17的电压信号，根据电压信号的变化，就可以确定触点位置，实现触摸控制，此时第一电极2和第二电极3分别作为触控用的感应电极和驱动电极。(2) In the second time period 21: the gate lines 10 (Gate1, Gate2...Gate n) in the
这里应该理解的是，上述显示装置的工作过程是以同一像素内的第一电极和第二电极为例进行说明的。可以理解的是，当人体手指触摸到不同像素区域的第一电极或第二电极时，由于通常人体手指与显示面板具有一定的接触面积，使得触摸具有连续性（即一般是不小于感应精度的人体触碰），如前所述，第一电极或第二电极分别充当感应电极或驱动电极的角色，在显示装置具有多个按一定规则排列的像素区域时，能保证感应电极和驱动电极相邻间隔设置，因此，即使人体触摸面积隶属于不同的像素区域（例如：人体触摸到了第一个像素区域的驱动电极和第二个像素区域的感应电极，或者，人体触摸到了第一个像素区域的感应电极和第二个像素区域的驱动电极），也不会影响触控的效果。It should be understood here that, the working process of the above display device is described by taking the first electrode and the second electrode in the same pixel as an example. It can be understood that when a human finger touches the first electrode or the second electrode of a different pixel area, since the human finger usually has a certain contact area with the display panel, the touch has continuity (that is, generally not less than the sensing accuracy human body touch), as mentioned above, the first electrode or the second electrode acts as the role of the sensing electrode or the driving electrode respectively, and when the display device has a plurality of pixel areas arranged according to certain rules, it can ensure that the sensing electrode and the driving electrode are in phase Adjacent intervals are set, so even if the human body touch area belongs to different pixel areas (for example: the human body touches the driving electrode of the first pixel area and the sensing electrode of the second pixel area, or the human body touches the first pixel area sensing electrodes and driving electrodes in the second pixel area), and will not affect the touch effect.
对于第一时间段与第二时间段的设置，可以根据具体的显示装置应用环境以及对响应精度、触控精度等条件来确定。例如，以频率为60Hz为例，显示装置显示一帧的帧周期时间为16.7ms，则可以选取其中12.7ms作为显示时间段，其他的4ms作为触控时间段，当然也可以根据显示装置中控制用的IC芯片的处理能力适当的调整两者的时长，在此不做具体限定。The setting of the first time period and the second time period may be determined according to the specific application environment of the display device and conditions such as response accuracy and touch accuracy. For example, taking the frequency as 60Hz as an example, the display device displays a frame cycle time of 16.7ms, you can select 12.7ms as the display time period, and the other 4ms as the touch time period, of course, it can also be controlled according to the display device. The processing capability of the IC chip used properly adjusts the duration of both, which is not specifically limited here.
另外，作为本实施例中阵列基板的一种变型，也可以根据产品的触控精度需要，在多个间隔的像素区域仅设置一对感应电极和驱动电极，并配合设置相应的感应信号线Rx和驱动信号线Tx。同时，为实现像素区域内的第一电极和第二电极分时复用为显示用的像素电极、触控用的感应电极和驱动电极，对反射器的控制程序做相应的改动即可。In addition, as a modification of the array substrate in this embodiment, it is also possible to set only a pair of sensing electrodes and driving electrodes in a plurality of spaced pixel areas according to the touch accuracy requirements of the product, and to set up corresponding sensing signal lines Rx and drive signal line Tx. At the same time, in order to realize the time-division multiplexing of the first electrode and the second electrode in the pixel area as the pixel electrode for display, the sensing electrode for touch control and the driving electrode, the control program of the reflector can be modified accordingly.
实施例2：Example 2:
如图5所示，本实施例与实施例1的区别在于，在本实施例中，显示装置仍包括第一电极2、第二电极3和公共电极9，第一电极2和第二电极3仍设置在阵列基板11上，而公共电极9设置在彩膜基板12上，公共电极9与第一电极2和第二电极3在正投影方向上至少部分重叠。As shown in Figure 5, the difference between this embodiment and
也即，本实施例的显示装置为TN（Twisted Nematic，扭曲向列）模式、VA（Vertical Alignment，垂直取向）模式液晶显示装置。That is, the display device of this embodiment is a TN (Twisted Nematic, twisted nematic) mode, VA (Vertical Alignment, vertical alignment) mode liquid crystal display device.
本实施例中阵列基板11的结构除未设置公共电极9以及与公共电极相应的绝缘层8外，其他的结构均与实施例1阵列基板11的结构相同；同时，显示装置中的第一电极2和第二电极3分时复用为显示用的像素电极、触控用的感应电极和驱动电极，相应的驱动方法也与实施例1相同，这里不再赘述。The structure of the
实施例3：Example 3:
本实施例与实施例1、2的区别在于，在本实施例中，显示装置包括第一电极、第二电极，第一电极和第二电极设置在阵列基板上，并分别作为OLED（Organic Light-Emitting Diode:有机发光二极管）的阳极电极。The difference between this embodiment and Embodiments 1 and 2 is that in this embodiment, the display device includes a first electrode and a second electrode. -Emitting Diode: the anode electrode of an organic light-emitting diode).
也即，本实施例的显示装置为AMOLED（Active Matrix OLED，有源矩阵驱动式有机发光二极管）显示装置。由于OLED本身即可发光，相比实施例1、2中的液晶显示装置，在该显示装置中不需设置背光源13。That is, the display device in this embodiment is an AMOLED (Active Matrix OLED, active matrix driven organic light emitting diode) display device. Since the OLED itself can emit light, compared with the liquid crystal display devices in
本实施例中阵列基板的结构除直接将第一电极和第二电极设置作为同一像素区域中的两个OLED的阳极电极外，其他的结构均与实施例2阵列基板的结构相同；同时，显示装置中的第一电极和第二电极分时复用为显示用的像素电极、触控用的感应电极和驱动电极，相应的驱动方法也与实施例1、2相同，这里不再赘述。The structure of the array substrate in this embodiment is the same as the structure of the array substrate in Embodiment 2 except that the first electrode and the second electrode are directly set as the anode electrodes of the two OLEDs in the same pixel area; meanwhile, the display The first electrode and the second electrode in the device are time-divisionally multiplexed into pixel electrodes for display, sensing electrodes for touch control, and driving electrodes. The corresponding driving methods are also the same as those in
实施例1-3的显示装置中，阵列基板利用同一像素区域中的两个电极分时段实现显示功能和触控功能，同时将相应的源极线分时段实现数据线功能和感应信号线/驱动信号线功能，也即将像素电极和感应电极/驱动电极合二为一，在现有的显示装置具有显示用的像素电极的基础上，不需再额外制备触控的感应电极/驱动电极和感应信号线/驱动信号线，节约了电极材料，极大地简化了工艺步骤，降低生产成本，提高了产品良率。In the display device of Embodiment 1-3, the array substrate uses two electrodes in the same pixel area to realize the display function and the touch function in time intervals, and at the same time, the corresponding source lines realize the data line function and the sensing signal line/driver in time intervals. The signal line function is to combine the pixel electrode and the sensing electrode/driving electrode into one. On the basis of the existing display device having the pixel electrode for display, there is no need to prepare additional touch sensing electrodes/driving electrodes and sensing electrodes. The signal line/drive signal line saves electrode materials, greatly simplifies process steps, reduces production costs, and improves product yield.
可以理解的是，以上实施方式仅仅是为了说明本实用新型的原理而采用的示例性实施方式，然而本实用新型并不局限于此。对于本领域内的普通技术人员而言，在不脱离本实用新型的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本实用新型的保护范围。It can be understood that, the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these variations and improvements are also regarded as the protection scope of the present utility model.
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| WO2015043256A1 (en)* | 2013-09-30 | 2015-04-02 | 京东方科技集团股份有限公司 | Array substrate and drive method therefor, and display device |
| WO2015062274A1 (en)* | 2013-11-01 | 2015-05-07 | 京东方科技集团股份有限公司 | Array substrate, touch control display panel and display device |
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| CN105867032A (en)* | 2016-06-01 | 2016-08-17 | 深圳市华星光电技术有限公司 | Liquid crystal display, display module and TFT array substrate thereof |
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- 2013-09-30CNCN201320614910.XUpatent/CN203519963U/ennot_activeExpired - Lifetime
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