1. Technical Field
The present invention relates to display field, and more particularly, to a liquid crystal display device and a liquid crystal display panel thereof.
2. Description of the Related Art
For correcting the color shift at the big viewing angle in the liquid crystal display (LCD) panel of vertical alignment (VA), it adopts pixel design of charge sharing. That is, the pixel has a main pixel and a sub pixel. In regular displaying mode, the charge gate opens and the sharing gate closes. The main pixel and the pixel electrode are charged to the same potential. Then, the charge gate closes and the share gate opens. The potential of the sub pixel is lower than that of the main pixel because of the share capacity (Cst3). The difference of the potential makes the orientations of the liquid crystal molecules different in two displaying regions so it corrects the color shift at the big viewing angle.
The product can adopt the pixel structure shown in
The equivalent circuit diagram of the pixel circuit is shown in
The present invention provides a liquid crystal display (LCD) device and an LCD panel thereof. The technical problem that the short between the ITO layer and the sub pixel cannot be investigated so the yield is decreased and the cost is increased, can be solved.
For solving the aforementioned problem, the present invention adopts a technique that an LCD panel includes a top substrate, a bottom substrate, and a liquid crystal (LC) layer. The top substrate includes a top common electrode. The bottom substrate is set opposite to the top substrate and includes a plurality of data gates; a plurality of charge gates; a plurality of pixel units set next to each other; a plurality of share gates; and a plurality of bottom common electrodes. The LC layer is set between the top substrate and the bottom substrate. Each pixel unit includes a first thin film transistor (TFT) , a second TFT, and a third TFT set on a plurality of bottom substrates respectively; a main pixel; a sub pixel set next to the main pixel 234; and a share sheet set between the main pixel and the sub pixel. A gate of the first TFT is coupled to the charge gate, a source of the first TFT is coupled to the data gate, and a drain of the first TFT is coupled to the main pixel. A gate of the second TFT is coupled to the charge gate, a source of the second TFT is coupled to the data gate, and a drain of the second TFT is coupled to the sub pixel. A gate of the third TFT is coupled to the share gate, and a source of the third TFT is coupled to a drain of the second TFT, wherein the bottom substrate further includes an insulating layer between the bottom common electrode and the share sheet. The sub pixel is set on the insulating layer and next to the share sheet. The share sheet is electrically connected with the third TFT through a via and extends forward an end of the adjacent sub pixel. A share capacitance is set between the share sheet and the bottom common electrode of the adjacent sub pixel. A drain of the third TFT is coupled to the share capacitance so the two adjacent pixel units display solid color picture when short occurs between the adjacent sub pixel and the share capacitance. The bottom common electrode includes an extensive part, the data gate is electrically connected with the source of the first TFT through the extensive part, and the extensive part and a connective gate are alternatively stacked.
A half of the share sheet is set on an end of the sub pixel and the other half of the share sheet extends to an end of the adjacent sub pixel.
⅕ of the share sheet is set on an end of the sub pixel and ⅘ of the share sheet extends to an end of the adjacent sub pixel.
The extensive part is alternatively stacked on a top of the connective gate.
The extensive part is alternatively stacked on a bottom of the connective gate.
For solving the aforementioned problem, the present invention adopts a technique that an LCD panel includes a top substrate, a bottom substrate, and a liquid crystal (LC) layer. The top substrate includes a top common electrode. The bottom substrate is set opposite to the top substrate and includes a plurality of data gates; a plurality of charge gates; a plurality of pixel units set next to each other; a plurality of share gates; and a plurality of bottom common electrodes. The LC layer is set between the top substrate and the bottom substrate. Each pixel unit includes a first thin film transistor (TFT), a second TFT, and a third TFT set on a plurality of bottom substrates respectively; a main pixel; a sub pixel set next to the main pixel 234; and a share sheet set between the main pixel and the sub pixel. A gate of the first TFT is coupled to the charge gate, a source of the first TFT is coupled to the data gate, and a drain of the first TFT is coupled to the main pixel. A gate of the second TFT is coupled to the charge gate, a source of the second TFT is coupled to the data gate, and a drain of the second TFT is coupled to the sub pixel. A gate of the third TFT is coupled to the share gate, and a source of the third TFT is coupled to a drain of the second TFT, wherein the bottom substrate further includes an insulating layer between the bottom common electrode and the share sheet. The sub pixel is set on the insulating layer and next to the share sheet. The share sheet is electrically connected with the third TFT through a via and extends forward an end of the adjacent sub pixel. A share capacitance is set between the share sheet and the bottom common electrode of the adjacent sub pixel. A drain of the third TFT is coupled to the share capacitance so the two adjacent pixel units display solid color picture when short occurs between the adjacent sub pixel and the share capacitance.
A half of the share sheet is set on an end of the sub pixel and the other half of the share sheet extends to an end of the adjacent sub pixel.
⅕ of the share sheet is set on an end of the sub pixel and ⅘ of the share sheet extends to an end of the adjacent sub pixel.
The bottom common electrode includes an extensive part, the data gate is electrically connected with the source of the first TFT through the extensive part, and the extensive part and a connective gate are alternatively stacked.
The extensive part is alternatively stacked on a top of the connective gate.
The extensive part is alternatively stacked on a bottom of the connective gate.
For solving the aforementioned problem, the present invention adopts another technique that an LCD device including the aforementioned LCD panel.
Comparing to the conventional technique, the sub pixel of the present LCD device and the present LCD panel is set on the insulating layer and next to the share sheet. The share sheet is electrically connected with the third TFT through a via and extends forward an end of the adjacent sub pixel. A share capacitance is set between the share sheet and the bottom common electrode of the adjacent sub pixel. A drain of the third TFT is coupled to the share capacitance so the two adjacent pixel units display solid color picture when short occurs between the adjacent sub pixel and the share capacitance. The detection is easy and effective so the yield is increased.
The accompanying drawings are included to provide easy understanding of the application, are incorporated herein and constitute a part of this specification. The drawings illustrate embodiments of the application and, together with the description, serve to illustrate the principles of the application.
To better and concisely explain the disclosure, the same name or the same reference number given or appeared in different paragraphs or figures along the specification should has the same or equivalent meanings while it is once defined anywhere of the disclosure.
Referring
The LCD panel includes a top substrate (not shown here), a bottom substrate 10, and a liquid crystal (LC) layer (not shown here). The LC layer is set between the top substrate and the bottom substrate 10.
Referring
Referring
A half of the share sheet 236 of the present invention is set on an end of the sub pixel 235 and the other half of the share sheet 236 extends to an end of the adjacent sub pixel 235′. It can be that ⅓ of the share sheet 236 is set on an end of the sub pixel 235 and ⅔ of the share sheet 236 extends to an end of the adjacent sub pixel 235′ as well. It further can be that ⅕ of the share sheet 236 is set on an end of the sub pixel 235 and ⅘ of the share sheet 236 extends to an end of the adjacent sub pixel 235′.
The present invention further provides an LCD device including the aforementioned LCD panel.
The sub pixel 235 is set on the insulating layer 40 and next to the share sheet 236. The share sheet 236 is electrically connected with the third TFT 233 through the via 41 and extends forward an end of the adjacent sub pixel 235′. A share capacitance 237 (Cst3) is set between the share sheet 236 and the bottom common electrode 25 of the adjacent sub pixel 235′. A drain of the third TFT 233 is coupled to the share capacitance 237 (Cst3) so the two adjacent pixel units 23 display solid color picture when short occurs between the adjacent sub pixel 235′ and the share capacitance 237 (Cst3). The detection is easy and effective so the yield is increased.
It will be apparent to those having ordinary skill in the art that various modifications and variations can be made to the devices in accordance with the present disclosure without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the present disclosure covers modifications and variations of this disclosure provided they fall within the scope of the following claims and their equivalents.
Number | Date | Country | Kind |
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2015101761574 | Apr 2015 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2015/078002 | 4/30/2015 | WO | 00 |