TW201110096A - Pixel array - Google Patents

Abstract

A pixel array includes a plurality of scan lines, a plurality of data lines and a plurality of pixel structures arranged in matrix, in which each of these pixel structures is electronically connected to each of these scan lines and data lines. Each of the pixel structures includes a switch element, a pixel unit, a compensation capacitor and a diode. In each pixel structure of an ith row pixel structures, a control end and a first end of the switch element are respectively coupled to an ith scan line and one of the data lines, the pixel unit is electronically connected to a second end of the switch element, the compensation capacitor is electronically connected to the pixel unit, and a positive terminal and a negative terminal of the diode are respectively electronically connected to the compensation capacitor and the (i+1)th scan line.

Description

201110096 2009-IPD-010TW 31967twf.doc/n VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a halogen array 'and in particular to an improved feed through effect# Prime array. [Prior Art] With the evolution of optoelectronics and semiconductor technology, the display panel has been booming. Among various display panels, a liquid crystal display panel (LCD panel) has recently been widely used, and a cathode ray tube display panel (CRT) has been replaced as one of the mainstream of the next generation display panel. 1A is an equivalent circuit diagram of a pixel array of a conventional liquid crystal display panel. Referring to FIG. 1A, the pixel array 1A includes a plurality of scanning lines GLM, GL, GL, _+1, . . . , a plurality of data lines DL parallel to each other, and a scanning line GL. GL/+i, and a plurality of pixel structures 110 coupled to the data line dl, wherein each of the pixel structures 11A includes a transistor U〇T and a pixel unit 110P. Each of the _ 佥 L _, 11 = contains the capacitance connected to the halogen electrode, connected to the lower line =: the storage capacitance Cst of the electrode line, 'the liquid water fan connected to the common electrode of the upper plate, the scanning line GL ^ DL intersect each other And define the array '· · · and the data line - thin film electric (4) column of the halogen structure 11G, in which each scan line is connected to the (four) line and the corresponding (four) line by the (four) pole and the source. _ _ to the corresponding 昼 电 = = 201110096 2009-IPD-01 〇 TW 31967twf.d 〇 c / n In more detail, the / 昼 昼 红 red gate is coupled to the / in the sweeping structure 110 The structure 110 of the thin film transistor ι1〇τ and the corresponding scan GL, and so on are the analogy of the remaining columns of the pixel - FIG. 1B is according to the relationship in FIG. 1A. The driving tear of the elementary structure is connected to one of the scanning lines of the scanning line GLi• ft ^ map. Please refer to the figure for the 'in-position period' high level, and the voltage level of the data line/time scanning voltage is ton 110T, and the value of the data voltage Vdata' transmitted through the film can be charged and charged. The corresponding book of the pixel element 11〇1> in Fig. 1B corresponds to the corresponding pixel electrode; the factory Vpixel, which shows the electric power of the pixel voltage waveform Vpixe1' The S level is the level of the node in Figure 1A. At the moment when the ta period ends, the scanning line sinks and stops enabling. This = the existence of the gate _ secret parasitic capacitance c in the structure of the halogen element 110, so that the i 昼 电 i i 受到 受到 受到 受到 受到 受到 受到The effect is accompanied by a feedthrough voltage thr〇ugh(6) such as anus. Generally speaking, this phenomenon is called the feedthrough effect (feed is also (7) tons 匕e ect), which causes the pixel voltage Vpixei' to deviate from the data voltage vdata. However, the feedthrough effect causes the liquid crystal display panel to produce undesirable defects such as flicker. In addition, when the size of the liquid crystal display panel is larger, the feedthrough effects of different pixel units are not the same, and the situation in which the display screen is uneven is severe, so that the phenomenon of flashing on the face is more difficult to solve. 201110096 2009-IPD-010TW 3I967twf.doc/n The present invention provides a pixel array which can reduce the feedthrough phenomenon and further improve the flickering phenomenon of the display surface. The present invention proposes a seed crystal array comprising a plurality of scanning lines, a plurality of shelling lines, and a plurality of halogen elements which are lightly connected to the scanning lines and the data lines and arranged in an array, and the:: A switching element, a pixel unit, a capacitor, and a diode. In the ζ· column pixel structure, the control end of each elementary switch and the first end of the Ζ Ζ 条 条 Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ The second end complements the & capacitor and is connected to the halogen unit, and the anode end and the extremum of the diode are respectively connected to the compensation capacitor and the (4)th scanning line. ☆ In the embodiment of the invention, each of the pixel units comprises a liquid crystal. The second end of the liquid-capacitor-terminal _ switching element and the compensation power 2 and the "other-side _-shared voltage. In one embodiment, each of the j-th structure of the j-th structure includes - the storage capacitor A compensation capacitor, "body, the gate of the two-body crystal is coupled. In one embodiment of the present invention, when the diode of the scan line _ is turned on, and when the scan line of the fourth (when the fourth (four) scan line is disabled,) the line is her diode. Off, the compensation capacitor voltage is scheduled for 201110096 zuuy-i-t>-D-〇l〇TW 31967twf.doc/n remains unchanged. In an embodiment of the invention, each of the pixel units includes a pole, wherein the second end of the pixel electrode and the compensation electrode are in an embodiment t, when coupled to the (sweat 1) sweep The diode of the plug-in line is turned on, and the corresponding compensation capacitor provides a corresponding voltage for the pixel element. In one embodiment of the invention, the compensation capacitor is comprised of a conductive material that forms the anode end of the body. - halogen electrodes and

In the implementation of the present invention, the compensation capacitor is composed of a halogen electrode and a conductive structure. In the embodiment, the material of the conductive structure is the same as that of the electrode and the electrode. In another embodiment, the material of the electrically conductive structure is the same as the material of the trace. In a further embodiment, the material of the electrically conductive structure is of the same material. Based on the above, the pixel array of the present invention is compensated by the setting of the compensation capacitor, and the feedthrough voltage is compensated by the ingenious configuration of the 2-halogen junction switch element and the diode to the two adjacent and scan lines. In turn, the defective surface produced by the feedthrough effect is improved. In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following detailed description will be made in conjunction with the accompanying drawings. [Embodiment] FIG. 2 is an equivalent circuit diagram of a pixel array according to an embodiment of the present invention. Referring to FIG. 2, the pixel array 2 of the present embodiment includes a plurality of scanning lines GLy of each other. GL, GL, +1, ..., a plurality of parallel monuments DL and scan lines GL / i, %, sink, ... and data lines dl 201110096 2009-IPD-010TW 31967twf.doc /n A plurality of f structures 210 that are consumed. Wherein, the scan lines GLM, GLr GL/+1, ..., and the data lines DL intersect each other to further define the pixel structure 210 of the array arrangement. < In detail, each of the unitary structures MO of the present embodiment includes the elements SW-昼素单(四)χ, the compensation capacitor & and the 2-pole D. Further step by step, 'for each component in the first column of the structure 12', the control terminal Ec of the member SW and the first end & respectively, the face scan, the line GLZ· and the - The data line DL, the halogen unit is connected to the second end E2 of the switching element SW, and the compensation capacitor "c" is connected to the second end E2 of the switching element SW, and the diode; = and the cathode end - sub-join The compensation capacitor Cc and the == line GLi+1. The same reason can be seen in the configuration relationship of other columns of the structure. <As shown in the above, in each of the pixel structures 21A, the diode D is not coupled to the same scanning line, "with adjacent scanning lines. 疋77 is coupled to two = in the embodiment Each switching element, for example, the control terminal of the middle switch element SW, is a thin film capacitor, and the first and second terminals 开关ι, e2 of the switching element SW are 曰 = closed core, the source of the body In the following embodiments, the main m--the switching element sw is described, and the two ends of the first-phase electric crystal 2 are, for example, the first and second source/drain electrodes. f The 昼素_21() of the present embodiment is applied to the liquid crystal continuation unit. The PIX unit includes a liquid crystal capacitor CLC. As shown in the panel of Fig. 2, 闼2 is not, this is a real 201110096 zuuy small Μ 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 One end of the liquid crystal capacitor cLC is coupled to the second end E2 (second source/pole) of the switching element sw and the compensation capacitor Cc', and the other end thereof is secreted to a common voltage Vcom. The display quality of the display panel is usually set in a step-by-step setting—the storage capacitor ^, which is an example of this embodiment. For example, the design of the storage capacitor Cst bit (four) pole top (cs(10) ee) is used. In detail, for each storage grid cst in the ζ 昼 昼 昼 结构 structure 210, the end is coupled to the switching element two The second source/drainage) and the compensation capacitor Cc, and the vertical-- (the latter scanning line GW, however, the invention is not limited to "electricity, in other embodiments, storage can also be used as a square (Cnmc (Hnm The design of 〇n) is particularly specific to the common electrode of the present embodiment. The equivalent circuit of FIG. 2A can be used as a source and a drain of a thin film transistor T. Wherein, the thin film is electrically connected. The gate coupling of the seek transistor T can be as shown in Fig. 2 and Fig. 2A, and the pixel layout design of the pixel array can be as shown in Fig. 3 The example is shown in FIG. 6B, wherein the cross-sectional lines AA, BB, CC, and D-ry in FIG. 3B to FIG. 3B to FIG. 6A and FIG. 3B 6A are according to FIG. 3A to FIG. The cross-section of the diode 〇 of the embodiment is limited. The appearance is 'but the invention is not used in this embodiment, the liquid crystal capacitor C^(纟2 and 2A) 201110096 2009-IPD-010TW 31967twf.doc/n A liquid crystal layer (not shown '7R) can be formed by two electrodes, one of which can be set in the pixel unit I> Coupling to the first terminal E of the switching element SW (second source / no pole) and the compensation element cc of a halogen electrode 212 (such as shown in FIG. 3A, FIG. 4A, FIG. 5A and FIG. 6A) The other electrode (not shown) is a common electrode that is drained to the common voltage Vcom in the upper board (not shown). 3A to 6A, a conductive layer M1 for forming a switching element SW, a conductive layer M1 of Ec (gate), and a conductive layer for forming a second end E2 (second source/drain) of the switching element sw The rivers 2 overlap each other, thus controlling the K Ec (gate) and the first end & (second source / no pole) - gate-dip parasitic capacitance (parasitic capacit〇r) & As can be seen from FIG. 3A and FIG. 3B, the thin film transistor Ta is electrically connected to the conductive structure (ie, the conductive layer M1) through the contact window ha, and the sales volume = M1 and the halogen electrode m are lightly coupled due to the capacitance. The compensation compensation is: Cc, wherein the material of the conductive layer M1 is the same as the material of the scanning line gl 〇G. 4A and FIG. 4B, the thin film transistor is electrically connected to the electrical structure (ie, the conductive layer 1T0), and the conductive shoulder is electrically connected.

Cc if Γ212 forms a compensation electric pen between the two, and the material of the conductive layer ITO is also the phase conduction of the pixel electrode 212, and FIG. 5β shows that the cell τ C is electrically connected. The connection is made, and the conductive layer is formed by the capacitor to form a compensation capacitor. 201110096 ζυυ^-ι-rD-01OTW 31967twf.doc/n

The material of the electric layer M2 is the same as the material of the data line DL. However, the design layout illustrated in FIGS. 5a and 5B can be further simplified to the appearance of FIGS. 6A and 6B, that is, the thin film transistor Td does not pass through the additionally disposed conductive structure and directly passes through the source/ The conductive property of the drain electrode is combined with the halogen electrode 212 to form a compensation capacitor Cc, which can also be regarded as a thin film transistor ~ and a conductive material constituting the anode terminal + of the diode D, wherein the thin film electricity of the embodiment The source back electrode of the crystal td and the conductive material forming the anode end + of the diode D are, for example, composed of the conductive layer M2. It should be noted that the layouts shown in the above-mentioned FIG. 3A to FIG. 6A and FIG. 6B are only for convenience of explaining the present embodiment, and are not intended to limit the present invention [that is, the layout of the present invention] The design can also look like other things. However, the actual layout design should be based on the needs of the product, so it is not shown here. Fig. 7 is a diagram showing driving waveforms of an embodiment of the present invention, wherein Fig. 7 is only an example of a voltage waveform of one of the gold-de-wf electrodes 212 of the second column. Please refer to Fig. 2 to Fig. 7 at the same time. In the case of Taiyi, Shi ^ w skin length, in the case of tl, during the period of tl, the ί 5 line GL"· enable 'this wife's electric shock voltage level High level. The two material lines, the transmitted data voltage v- can be transmitted through the switch element electrode buckle and charged. The voltage of the gold and the pixel of the halogen electrode 212 is as shown by vpm, wherein the voltage of the pixel voltage waveform Vpixei is the voltage level of the node N2 in Fig. 2. Between, scan line GL, · stop enable, the presence of this - bungee parasitic capacitance Cgd, so that the end of the t1 period is due to the gate in the pixel structure 210 201110096 2009-IPD-0 l〇TW 31967twf. D〇c/n ^ She I was subjected to a difficult voltage drop due to the scanning voltage = knowledge of the data, and the voltage of the feedthrough (two = Ilf, generally referred to as the feedthrough effect such as d (4) D conduction, and complement (4)) The scanning diode GLl+1 is lightly connected to the diode ^ ί=. Charge it. The scale, the rising edge of the scan will cause the voltage of the halogen electrode m to be v voltage, wherein the compensation voltage is fed by p: liter. As a result, the value of the halogen voltage 'ν' is approximately V Plxel and returns to the data voltage V data. , Japanese, and the (ί+1) scan line GLm is disabled, that is, t3 two ', and = the line GL i+1 coupled with the diode D will be closed ^ and compensate the electric valley Cc The electrical house level remains unchanged. The pressure has an effect, and ^ΐτ Μ Ρ basic _ get. Therefore, the position of the V pixel of the second diode D which is connected to the second line GL can be maintained substantially unchanged from the time of closing to the next conduction. The feedback caused by the pass-through voltage of the first pass is solved. In addition, when the size of the liquid crystal display panel is larger, the shoulder of the RC delay is the shoulder of the RC delay, so that the amplitudes of the upper and the second of the scanning voltage are the same, and the feedthrough π of the panel is made. Not the same sister. However, the feedthrough voltage caused by the stop of each scan line of the present embodiment 12 201110096 zuuy-^-D-〇l〇TW 31967twf.doc/n can be immediately transmitted through the next scan line. In order to obtain a substantially equivalent compensation voltage, a feedthrough effect of varying degrees across the display panel is resolved. In short, regardless of the size of the liquid crystal display panel, the pixel array of the present embodiment can be improved.

Table T, the above description of the pixel array of the present invention, through the arrangement of the compensation capacitor and the ingenious arrangement of the switching elements and the diodes in each pixel structure, can compensate for the feedthrough % voltage. As a result, the defective surface of the kneading surface caused by the feedthrough effect, such as uneven surface kneading, can be greatly improved. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a diagram showing an equivalent diagram of a pixel array of a conventional liquid crystal display panel. FIG. 1B is a diagram showing one of the denier structures coupled to the scan line of FIG. 1A. Drive waveform diagram. 2 is a diagram showing an equivalent circuit of a pixel array according to an embodiment of the present invention. FIG. 2 is a diagram showing another equivalent of a pixel array according to an embodiment of the present invention. - A top view of the four elements of the embodiment. 13 201110096 2009-IPD-010TW 31967twf.doc/n Figures 3B to 6B are depicted in accordance with the cross-sectional lines A-A', B-B', C-C' and D-D' in Figures 3A to 6A, respectively. Schematic diagram of the section. FIG. 7 is a diagram showing driving waveforms of an embodiment of the present invention. .. - [Main component symbol description] 100, 200: Alizarin array 110, 210: Alizarin structure 110T, T, TA, TB, Tc, TD: Thin film transistor 110P, PIX: Alizarin unit 212: Alizarin electrodes AA, BB, C-C', DD,: hatching

Cc: compensation capacitor cgd: parasitic capacitance Clc', Clc: liquid crystal capacitor Cst', Cst: storage capacitor D. diode DL. lean line Ei: first end E2: second end Ec: control terminals GLy, GL, ·, GLi+i: scan line HA, HB: contact window Ml, M2, ITO: conductive layer SGi', SGi: scan voltage 201110096 ▲ VD-01OTW 31967twf.doc/n sw : switching element ta, tl: period t2 T3 : time

Vcom', Vcom: common voltage Vdata', Vdata: data voltage Vpixei, Vpixei. halogen voltage Δ VFT', Δν^Γ : feedthrough voltage + : anode terminal one: cathode terminal

15

Claims (1)

201110096 2009-rPD-0,0TW 3,967twfd〇c/n VII. Apply for a patent 蔺·· and with multiple sweeping lines, multiple data lines with structure 'where; two coupled each other, arranged multiple pixels -Switch element # itr 建母-昼素结构 includes: One of the data of the end of the end ^The end of the market line 'the - the first - the element of the element, she the switch element two compensation capacitor, turn the picture element 1 = 4 The fourth end of the fourth end of the switching element of the fourth end of the fourth end of the fourth end of the fourth end of the fourth end And 5 Hai Buxin Electric Valley / its other - end reduction - shared electric Li. Each of the 昼 单元 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 昼 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = - the end of the (/ +1) scanning line. 4, as claimed in the scope of claim 1, wherein each - diode is -_transistor 'the source of the thin film transistor and One of them is coupled to the gate of the thin film transistor. 2. The halogen (4) as described in the scope of the patent application, (4) when the scanning line is enabled, and the scanning line of the (M) scanning line is secret The body is turned on and charges the compensation capacitor. π 16 201110096 ^^-^>-D-〇i〇Tw 31967twfd〇c/n 6. The pixel array as described in claim 1 of the patent scope, And if the scanning line of (4) is disabled, the voltage of the diode of the (4) scanning line is closed and the voltage level of the compensation capacitor remains unchanged. 7. As stated in the scope of claim patent a pixel array, wherein the halogen unit comprises: a halogen electrode coupled to the second end of the switching element and the compensation The pixel array of claim 7, wherein when the diode of the (4)th scan line is turned on, the pixel element of the job is provided. [9] The halogen array according to item 1 of the patent application, wherein the material consists of a material and a material which constitutes the anode end of the diode. 10. The enthalpy array as described in the patent application 帛i, the compensating capacitance consists of a halogen element and a conductive structure. /, Μ Please use the halogen phase described in Item 10, the material of the 1 conductive structure is the same as the material of the halogen electrode. Λ 12· As for the halogen array described in the 1Gth patent range, the material of the conductive structure is the same as the material of the scanning lines. Λ 13. For the halogen array described in item 1G of the patent scope, the material of the conductive structure is the same as the material of the data lines. Λ 17