This application claims priority to Chinese Application No. 201510375154.3, filed Jun. 30, 2015, which is herein incorporated by reference in its entirety.
The present disclosure relates to the field of liquid crystal display technologies and, in particular, to an array substrate and a liquid crystal display panel.
In the field of liquid crystal display technologies, an In-Plane Switching (IPS) technology and a Fringe Field Switching (FFS) technology, which are common liquid crystal display technologies for a wide angle of view, are characterized in that a positive electrode and a negative electrode are both disposed on the same substrate such that liquid crystal molecules are rotatable in a plane in parallel with the substrate, thereby increasing the light transmittance of a liquid crystal layer.
Currently, a dual-domain technology is generally used in the IPS and FFS technologies. As shown in
Embodiments of the disclosure provide an array substrate and a liquid crystal display panel to solve technical problems of the influence of the trace mura phenomenon and the light leak phenomenon at the corner region on the display effect.
In a first example, the disclosure provides an array substrate, the array substrate includes data lines, scan lines intersecting the data lines and a plurality of pixel regions; where each of the plurality of pixel regions includes a first light transmission region, a second light transmission region and a light shielding region between the first light transmission region and the second light transmission region, a first electrode is disposed in the first light transmission region, a second electrode is disposed in the second light transmission region, and a thin film transistor is disposed in the light shielding region, where a drain electrode of the thin film transistor is electrically connected with the first electrode and the second electrode; the data line corresponding to each of the plurality of pixel regions include a first portion and a second portion extending in two different directions, respectively, the first portion is connected with the second portion via a first connection portion located at the light shielding region, and the scan line corresponding to each of the plurality of pixel regions extends through the light shielding region.
In a second example, the disclosure provides a liquid crystal display panel including a color filter substrate and an array substrate opposite to the color filter substrate, where the array substrate is any of the above embodiments.
In the array substrate and the liquid crystal display panel, according to embodiments of the disclosure, each pixel region is divided into three regions, that is, a first light transmission region, a second light transmission region and a light shielding region, where a first electrode is disposed in the first light transmission region, a second electrode is disposed in the second light transmission region, a thin film transistor is disposed in the light shielding region, and a drain electrode of the thin film transistor is electrically connected with both the first electrode and the second electrode, such that liquid crystal molecules located at a boundary between the first electrode and the second electrode are within the light shielding region, and the effect of these liquid crystal molecules on the display effect is invisible to a user, thereby effectively reducing the influence of the trace mura on the display effect. Moreover, as compared with the related art in which the thin film transistor and the light shielding region are located at an end of the pixel region, the technical solutions provided by the embodiments of the present invention arrange the thin film transistor and the light shielding region in the middle of the pixel region, without affecting the aperture ratio of the array substrate. In addition, according to the technical solutions provided by the embodiments of the disclosure, there is no significant corner region on the data lines, and hence no light leak phenomenon occurs.
While multiple embodiments are disclosed, still other embodiments of the disclosure will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the disclosure. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.
In order to more clearly illustrate the technical solutions of the embodiments of the disclosure, the drawings used for the description of the embodiments are briefly introduced below. Obviously, the drawings for the following description only show some embodiments of the disclosure, and other drawings may also be obtained from the described drawings.
While the disclosure is amenable to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and are described in detail below. The intention, however, is not to limit the disclosure to the particular embodiments described. On the contrary, the disclosure is intended to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure as defined by the appended claims.
The disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments disclosed herein are merely intended for explaining, rather than limiting, the disclosure. It should also be noted that the accompanying drawings show only parts relating to the disclosure, but not in an exhausting way, for the ease of description.
Referring to
Each of the plurality of pixel regions 23 includes a first light transmission region 231, a second light transmission region 232, and a light shielding region 233 between the first light transmission region 231 and the second light transmission region 232, where a thin film transistor 24 is disposed in the light shielding region 233, a first electrode 251 is disposed in the first light transmission region 231, a second electrode 252 is disposed in the second light transmission region 232, and a drain electrode of the thin film transistor 24 is electrically connected with both the first electrode 251 and the second electrode 252.
In addition, the data line 21 corresponding to each of the plurality of pixel regions 23 includes a first portion 211 and a second portion 212 which respectively extend in two different directions, the first portion 211 is connected with the second portion 212 via a first connection portion 213 located at the light shielding region 233, and the scan line 22 corresponding to the pixel region 23 extends through the light shielding region 233.
As such, in the array substrate, each pixel region 23 is divided into the first light transmission region 231, the second light transmission region 232 and the light shielding region 233, where the first electrode 251 is disposed in the first light transmission region 231, the second electrode 252 is disposed in the second light transmission region 232, the thin film transistor 24 is disposed in the light shielding region 233, and the drain electrode of the thin film transistor 24 is electrically connected with both the first electrode 251 and the second electrode 252, such that liquid crystal molecules located at a boundary between the first electrode 251 and the second electrode 252 are within the light shielding region 233, and an effect of these liquid crystal molecules on the display effect is invisible to a user, thereby effectively reducing the influence of the trace mura on the display effect. In addition, in the related art, a corner region of the data line is present corresponding to the corner region between the upper portion and the lower portion of the pixel electrode, and the data line is made of light impermeable material, thereby leading to a light leak phenomenon at the corner region of the data line. However, according to the technical solutions provided by embodiments of the disclosure, there is no significant corner region on the data line 21 and the first connection portion 213 of the data line is within the light shielding region 233, thus no light leak phenomenon occurs. Moreover, as compared with the related art in which the thin film transistor and the light shielding region are located at an end of the pixel region, the technical solutions provided by embodiments of the disclosure arrange the thin film transistor 24 and the light shielding region 233 in the middle of the pixel region 23, without affecting the aperture ratio of the array substrate.
Further, in embodiments, the scan line 22 located at the light shielding region 233 extends in a first direction, i.e. a direction X shown in
Still referring to
In the above embodiments of the disclosure, the first electrode 251 includes at least one first strip electrode 253, the second electrode 252 includes at least one second strip electrode 254, and the first strip electrodes 253 are disposed corresponding to the second strip electrodes 254, respectively. As shown in
Based on the array substrate shown in
In embodiments, the first deflected part 262 and the second deflected part 264 each have a length L1 in the direction Y, as shown in
In addition, referring to
In embodiments of the disclosure, referring to
Optionally, the angle β can be no more than 10°. In this case, considering that the first body 261 is in parallel with the first portion 211 of the data line 21, the second body 263 is in parallel with the second portion 212 of the data line 21, and the first connection portion 213 can be arranged to be in parallel with the second direction, the angle β formed between the first portion 211 or the second portion 212 of the data line 21 and the second direction is also no more than 10°. According to an experimental analysis, when the angle formed between the first portion 211 or the second portion 212 of the data line 21 and the second direction is larger than 10°, a scattering phenomenon causing light leak occurs. The relationship between the light leak and the angle β is shown in Table 1 below.
As show in Table 1, if the angle β is no more than 10° and connections between various portions of the data line are located at the shielding-light region in embodiments, the light leak phenomenon caused by a corner region formed between the various portions of the data line can be effectively avoided.
Further referring to
Further referring to
Based on the array substrate shown in
In embodiments shown in
Further, referring to
As such, in embodiments shown in
As shown in embodiments of
In the above embodiments, the second connection portion 272 and the third connection portion 273 are both connected with the drain electrode of the thin film transistor 24. Of course, in some other embodiments, it is possible that the second connection portion 272 and the third connection portion 273 are connected with each other and are both connected with the drain electrode of the thin film transistor 24.
Referring to
Regarding the array substrate shown in
In Table 2, the angle represents an angle formed between the first body 261 of the first strip electrode and the second direction (i.e. the direction Y) or an angle between the second body 263 of the second strip electrode and the second direction (i.e. the direction Y), and the recovery time is represented in the unit of second. According to the technical solutions of the embodiments of the disclosure, when the recovery time for the trace mura phenomenon is shortened, the trace mura phenomenon can be effectively alleviated.
Embodiments of the disclosure also provide a liquid crystal display panel. Referring to
A black matrix 311 is disposed on the color filter substrate 31, and the black matrix 311 is disposed correspondingly to data lines and scan lines on the array substrate 32 and a light shielding region in each pixel region on the array substrate 32, so that each light shielding region on the array substrate is located within a projection of the black matrix 311 onto the array substrate 32.
Further, in some embodiments, the third deflected part of the first strip electrode is at least partially located within the projection of the black matrix onto the array substrate; and/or the fourth deflected part of the second strip electrode is at least partially located within the projection of the black matrix onto the array substrate.
In embodiments of the disclosure, the black matrix shields the third deflected part and the fourth deflected part so as to effectively reduce the number of black disclination lines.
Since a region including the black disclination lines has an insignificant effect on the light transmissibility of each pixel region, the overall light transmissibility of the pixel region is basically dependent on the light transmissibility of a part of the pixel region at which a body of each strip electrode is located. Meanwhile, with the technical solutions of the disclosure, the overall light transmissibility of each pixel region is almost not affected, that is, the overall light transmissibility of each pixel region basically remains unchanged as compared with the prior art.
In addition, referring to
It should be noted that the embodiments of the disclosure and the technical principles used therein are described as above. It should be appreciated that the disclosure is not limited to the particular embodiments described herein, and any apparent alterations, modification and substitutions can be made by those skilled in the art without departing from the scope of protection of the disclosure. Accordingly, while the disclosure is described in detail through the above embodiments, the disclosure is not merely limited to the above embodiments and can further include other additional embodiments without departing from the scope of the disclosure
Various modifications and additions can be made to the exemplary embodiments discussed without departing from the scope of the disclosure. For example, while the embodiments described above refer to particular features, the scope of this disclosure also includes embodiments having different combinations of features and embodiments that do not include all of the described features. Accordingly, the scope of the disclosure is intended to embrace all such alternatives, modifications, and variations as fall within the scope of the claims, together with all equivalents thereof.
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2015 1 0375154 | Jun 2015 | CN | national |
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