PIXEL STRUCTURE OF DISPLAY

Abstract

A pixel structure of a display is disclosed, and includes: a first pixel region and a second pixel region adjacent to the first pixel region. The first pixel region has a first direct-current (DC) residual electric field, the second pixel region has a second DC residual electric field, and a direction of the first DC residual electric field and a direction of the second DC residual electric field are opposite to each other. An alternating electrode structure design is adopted to reduce or eliminate residual ions accumulated between the insulating layer and the electrodes, thereby reducing or eliminating an image-sticking phenomenon.

Claims

1. A pixel structure of a display, comprising: a first pixel region, the pixel structure in the first pixel region comprising: a common electrode; an insulating protective layer disposed on the common electrode; a pixel electrode disposed on the insulating protective layer; and an insulating layer disposed on the pixel electrode; and a second pixel region adjacent to the first pixel region, the pixel structure in the second pixel region comprising the common electrode, the insulating protective layer, the pixel electrode, and the insulating layer, wherein the insulating protective layer is disposed on the pixel electrode, the common electrode is disposed on the insulating protective layer, and the insulating layer is disposed on the common electrode; wherein the insulating layer in the first pixel region has a first ionic polarity, and the insulating layer in the second pixel region has a second ionic polarity, the first ionic polarity and the second ionic polarity are opposite to each other, and a plurality of first ions with the first ionic polarity and a plurality of second ions with the second ionic polarity are redistributed and diffused, or neutralized by the insulating layer.

2. The pixel structure of the display according to claim 1, wherein the first ionic polarity is negative, and the second ionic polarity is positive.

3. The pixel structure of the display according to claim 1, wherein the insulating layer in the first pixel region is in contact with the pixel electrode and the insulating layer in the second pixel region is in contact with the common electrode.

4. The pixel structure of the display according to claim 1, wherein the insulating layer is a polyimide layer.

5. The pixel structure of the display according to claim 1, wherein the common electrode in the first pixel region and the pixel electrode in the second pixel region are located in a same layer; and the pixel electrode in the first pixel region and the common electrode in the second pixel region are located in a same layer.

6. A pixel structure of a display, comprising: a first pixel region, the pixel structure in the first pixel region comprising: a first electrode; an insulating protective layer disposed on the first electrode; a second electrode disposed on the insulating protective layer; and an insulating layer disposed on the second electrode; and a second pixel region adjacent to the first pixel region, the pixel structure in the second pixel region comprising the first electrode, the insulating protective layer, the second electrode, and the insulating layer, wherein the insulating protective layer is disposed on the second electrode, the first electrode is disposed on the insulating protective layer, and the insulating layer is disposed on the first electrode; wherein the insulating layer in the first pixel region has a first ionic polarity, and the insulating layer in the second pixel region has a second ionic polarity, and the first ionic polarity and the second ionic polarity are opposite to each other.

7. The pixel structure of the display according to claim 6, wherein the first ionic polarity is negative and the second ionic polarity is positive.

8. The pixel structure of the display according to claim 6, wherein the first electrode is a common electrode, and the second electrode is a pixel electrode.

9. The pixel structure of the display according to claim 6, wherein the insulating layer in the first pixel region is in contact with the second electrode and the insulating layer in the second pixel region is in contact with the first electrode.

10. The pixel structure of the display according to claim 6, wherein the insulating layer is a polyimide layer.

11. The pixel structure of the display according to claim 8, wherein the first electrode in the first pixel region and the second electrode in the second pixel region are located in a same layer; and the second electrode in the first pixel region and the first electrode in the second pixel region are located in a same layer.

12. A pixel structure of a display, comprising: a first pixel region; and a second pixel region adjacent to the first pixel region, wherein the first pixel region has a first direct-current (DC) residual electric field, and the second pixel region has a second direct-current (DC) residual electric field, a direction of the first direct-current (DC) residual electric field and a direction of the second direct-current (DC) residual electric field are opposite to each other, and a plurality of first ions with the first direct-current (DC) residual electric field and a plurality of second ions with the second direct-current (DC) residual electric field are redistributed and diffused, or neutralized-by an insulating layer.

13. The pixel structure of the display according to claim 12, wherein the pixel structure in the first pixel region comprises: a first electrode; a second electrode disposed on the first electrode; and the insulating layer disposed on the second electrode; wherein the pixel structure in the second pixel region comprises: the second electrode; the first electrode disposed on the second electrode; and the insulating layer disposed on the first electrode.

14. The pixel structure of the display according to claim 13, wherein the first electrode is a common electrode, and the second electrode is a pixel electrode.

15. The pixel structure of the display according to claim 13, wherein the insulating layer in the first pixel region is in contact with the second electrode and the insulating layer in the second pixel region is in contact with the first electrode.

16. The pixel structure of the display according to claim 13, wherein the insulating layer is a polyimide layer.

17. The pixel structure of the display according to claim 14, wherein the first electrode in the first pixel region and the second electrode in the second pixel region are located in a same layer; and the second electrode in the first pixel region and the first electrode in the second pixel region are located in a same layer.

Description

DRAWINGS

[0021] In order to more clearly illustrates the context of the present invention, the preferred embodiments are described below, and in conjunction with the accompanying drawings, the detailed description is as follows:

[0022] In the drawings:

[0023] FIG. 1 is a schematic view showing a pixel structure of a display according to a first embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS

[0024] The following description of the various embodiments is provided to illustrate the specific embodiments of the present invention. Furthermore, the directional terms mentioned in the present invention, such as upper, lower, top, bottom, front, rear, left, right, inner, outer, side, surrounding, central, horizontal, horizontal, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., only refer to the direction of the accompanying drawings. Therefore, the directional terminology used is for the purpose of illustration and understanding of the present invention.

[0025] The term image-sticking as used herein refers to a phenomenon that a display shows a still image for a long time and leaves the previous image after changing the display content.

[0026] The term pixel region as used herein refers to a basic unit of a display image in a display. A pixel region is usually a square in design, and the square pixel is divided into three color units of red, green and blue.

[0027] The terms a, an and the as used herein includes multiple references unless the context clearly dictates otherwise. For example, the term an electrode or at least one electrode can include a plurality of electrodes, including compositions thereof.

[0028] The sizes and values disclosed herein are not intended to be construed as being strictly limited to the precise values. On the contrary, unless otherwise indicated, various sizes are intended to represent the recited numerical values as well as the functionally equivalent ranges thereof. For example, the disclosed size of 10 microns means about 10 microns.

[0029] Please refer to FIG. 1, in order to achieve the foregoing objects of the present invention, a pixel structure 1 of a display, such as a pixel structure applied on array substrates as thin film transistor (TFT) displays, is provided. The pixel structure 1 includes: a first pixel region A and a second pixel region B. The pixel structure 1 which is in the first pixel region A includes: a first electrode 11, an insulating protective layer 12, and an insulating layer 14. In this embodiment, the first electrode 11 is a common electrode; the insulating protective layer 12 is disposed on the first electrode 11; the second electrode 13 is disposed on the insulating protective layer 12. In this embodiment, the second electrode 13 is a pixel electrode, and the insulating layer 14 is disposed on the second electrode 13. In this embodiment, the insulating layer 14 is a polyimide layer. The second pixel region B is adjacent to the first pixel region A, and the pixel structure 1 which is in the second pixel region B includes the first electrode 11, the insulating protective layer 12, the second electrode 13, and the insulating layer 14. The insulating protective layer 12 is disposed on the second electrode 13, the first electrode 11 is disposed on the insulating protective layer 12, and the insulating layer 14 is disposed on the first electrode 11. In other words, an arrangement of the first electrode 11 and the second electrode 13 in the first pixel region A and an arrangement of the first electrode 11 and the second electrode in the second pixel region B is opposite to each other. Therefore, the insulating layer 14 in the first pixel region A has a first ionic polarity 15, and the insulating layer 14 in the second pixel region B has a second ionic polarity 16, the first ionic polarity 15 and the second ionic polarity 16 are opposite to each other. Preferably, the first ionic polarity 15 is negative and the second ionic polarity 16 is positive.

[0030] Preferably, as shown in FIG. 1, the insulating layer 14 in the first pixel region A is in contact with the second electrode 13, and the insulating layer 14 in the second pixel region B is in contact with the first electrode 11. Preferably, as shown in FIG. 1, the common electrode in the first pixel region A and the pixel electrode in the second pixel region B are located in a same layer. The pixel electrode in the first pixel region A and the common electrode in the second pixel region B are located in a same layer. A plurality of first ions 151 with the first ion polarity 15 and a plurality of second ions 161 with the second ion polarity 16 are redistributed and diffused by the insulating layer 14 to reduce or neutralize the first ions 151 remaining in the first pixel region A and the second ions 161 remaining in the second pixel region B.

[0031] Moreover, another embodiment of the present invention further provides a pixel structure similar to the display described above, including: a first pixel region and a second pixel region adjacent to the first pixel region. The pixel structure which is in the first pixel region includes: a first electrode, a second electrode, and an insulating layer, the second electrode disposed on the first electrode, and the insulating layer is disposed on the second electrode. The pixel structure in the second pixel region includes: the second electrode, the first electrode, and the insulating layer, the first electrode disposed on the second electrode, and the insulating layer is disposed on the first electrode. Preferably, the first electrode is a common electrode, and the second electrode is a pixel electrode. Preferably, the insulating layer is a polyimide layer. The first pixel region has a first direct-current (DC) residual electric field, the second pixel region has a second direct-current (DC) residual electric field, and a direction of the first direct-current (DC) residual electric field and a direction of the second direct-current (DC) residual electric field are opposite to each other. The insulating layer in the first pixel region is in contact with the second electrode and the insulating layer in the second pixel region is in contact with the first electrode; such that the first direct-current (DC) residual electric field and the second direct-current (DC) residual electric field are redistributed and diffused by the insulating layer, thereby reducing or neutralizing the first DC residual electric field in the first pixel region and the second DC residual electric field in the second pixel region. A plurality of first ions with the first DC residual electric field and a plurality of second ions with the second DC residual electric field is distributed or neutralized by the insulating layer.

[0032] As described above, although the image-sticking problem can be improved by adjusting the common voltage in the existing method, there are different electric loads between different liquid crystal panels due to the process tolerance, results that the liquid crystal panels have different feed-through voltages, as a result, different feed-through voltages cause an uneven flicker of the liquid crystal panel. Moreover, if a known method by adjusting the common voltage through a variable resistor is used, it is necessary to rely on an operator to visually adjust the flicker. However, different operators have different sensitivity to flicker, which results in different standards for determining the flicker, and it will cost a lot of labor costs that operators visually adjust the flicker, and results in the drawbacks, such as uneven performance and quantity, and high cost. The pixel structure of the display, according to the present invention, is to provide an alternating common electrode and a pixel electrode design between the adjacent pixel regions, it can effectively reduce or eliminate the residual ions accumulated between the insulating layer and the electrode, thereby reducing or eliminating the image-sticking phenomenon, thereby improving the performance and quality of the product.

[0033] The present invention has been described by the above related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments are not intended to limit the scope of the present invention. Conversely, modifications and equivalent arrangements are intended to be included within the scope of the present invention.