TW200836090A - Photo-sensitive element and liquid crystal display with the same - Google Patents

Abstract

The photo-sensitive element includes a switch TFT and a photo detecting device. The gate electrode of the switch TFT is electrically connected to a switch line and the source electrode of the switch TFT is electrically connected to a readout line. The photo detecting device is connected between the switch line and the drain electrode of the switch TFT for detecting the brightness of a light incident thereon.

Description

200836090 IX. Description of the Invention: [Technical Field] The present invention relates to a photosensitive member, and more particularly to a photosensitive member having a detecting function and a liquid crystal display. [Prior Art] The touchpad generally has a transparent surface and is mounted on a display device, such as a notebook computer or a liquid crystal display of a number of assistants (PDAs) to provide a user. An input interface or input device 'does input work without the need for an additional keyboard or mouse. Touchpads are also often used for drawing work, such as computer-aided design drawings. The touchpad is also often used as a touch film (t〇uch film), a touch screen, a digitizer, a tablet pc or an electronic graphic input panel (electric graphic 丨叩 plus panel; EGIP) The form appears. Depending on the sensing method, the touchpad is usually classified into a resistive, capacitive or electromagnetic type. Resistive touch panels use current changes to detect where they are being touched. Capacitive touch panels use capacitance changes to detect where they are being touched. The electromagnetic touch panel applies a change in the electromagnetic field and the resonant frequency of the touched position to detect the position of the touched pressure. Different forms of touchpads have different forms of signal amplification, resolution, and signal processing techniques. Therefore, according to different needs, users can select the desired display device and the appropriate touchpad according to economic benefits, product life, photoelectric properties, electrical properties, mechanical properties, environmental testing and input characteristics. . 200836090 However, the touchpad has a transparent surface that is mounted between the user and the surface of the viewable area of the display (e.g., liquid crystal display) with a number of disadvantages. For example, since the transparent surface of the touch panel incorporates many optical films of the liquid crystal panel itself, it will cause multiple reflections of light, thereby reducing the contrast of the display and producing a glare. In addition, the addition of a touchpad to the display also increases the cost of production of the display and increases the complexity and thickness of the assembly. Therefore, a part of the liquid crystal display is combined with the photosensitive member on the thin film transistor array substrate to replace the transparent touch panel additionally mounted on the display surface, which simplifies the assembly process of the liquid crystal display having the touch function. See Figure 1A for a current-sensitive photosensor! The crucible has a photo thin film transistor (photo TFT) 11 〇 and a switch thin film transistor (switch TFT) 130. The source electrode 136 of the switching thin film transistor i3 is electrically connected to a readout line 140, and the gate electrode 132 is electrically connected to a switch line 150. The drain electrode 134 is electrically connected to the source electrode 丨丨6 of the thin film transistor 110. In addition, both the gate electrode 1 and the drain electrode 114 are electrically connected to a bias line (10) voltage line 120. The bias line 12A provides a voltage to the photosensitive thin film transistor 110. Therefore, when the switching film transistor 130 is turned on, the photocurrent passing through the photosensitive film transistor 11 will be affected by the brightness on the surface of the photosensitive film transistor 11 . In general, this photocurrent will be positively correlated with the brightness detected by the photosensitive film 110. However, too many metal lines are disposed on the substrate of the thin film transistor array, such as the read line 140, the switch line 15A, and the bias line 12, which will significantly affect the aperture ratio indicated by the liquid 200836090. (aperture ratio). Since the galvanic photosensitive element 1 is not required to be connected to three metal lines, such as the switch line 150, the bias line 120, and the read line 14A, the photosensitive element 100 is driven to measure the brightness of the light thereon. Therefore, the current-type photosensitive 70 member is generally referred to as a three-terminal photosensitive member. Referring to Fig. 1B, there is shown a charge photosensor 800. The charge photosensor 8 〇〇 includes a photo film transistor (Photo TFT) 850, a switch film transistor 840, and a capacitor 860. The source electrode of the switching thin film transistor 840 () is electrically connected to the read line 810, and is electrically connected to the switch line 82 by its gate electrode. The drain electrode is electrically connected to the source electrode of the photosensitive film transistor 850. In addition, the gate electrode and the drain electrode of the photosensitive film transistor 85 are electrically connected to the bias line 83A. It is worth noting that this _charge & photosensitive element is also referred to as a three-terminal photosensitive element. It is not exactly the same as the current-type photosensitive element 1 , and the charge-sensitive photosensitive member 800 generally has an additional element, a capacitance of 86 〇. Similarly, the charge-type photosensitive element _ & must be connected to at least three U metal lines, such as switch line 82 〇, bias line 830 and read line 810, to drive photosensitive element 800 to measure the brightness of the light thereon. —□———————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————— Sensitivity and improved display performance are the goals of the development industry. SUMMARY OF THE INVENTION In accordance with the foregoing objects, the present invention provides a light-sensitive element comprising a 7200836090-electrical conductive line, a second conductive line, a switching thin film transistor, and a second element. The switching thin film transistor has a first gate electrode, a $terminal electrode w and a second terminal electrode. The first _ gate electrode is electrically connected to the first conductive line, and the _th terminal electrode is electrically connected to the second conductive line, and the detecting TL is electrically connected to the second conductive end and the second end of the switching film transistor Light between the electrodes that is irradiated with (4).

另一 Another sadness of this 1 is to provide a reading of a liquid crystal display. The read halogen includes a halogen film transistor and a gate electrode of a photosensitive element transistor electrically connected to the _th gate line disposed on the substrate of the liquid crystal, and the substrate. The photosensitive element further comprises a switching phase transistor and a measuring component, wherein the gate electrode of the switching thin film transistor is electrically connected to the second gate line on the substrate, and the source electrode of the switching thin film transistor Electrical connection - read the line. The optical component is coupled between the second gate line and the gate electrode of the switching thin film transistor to detect the brightness of the light that is incident thereon. One. Yet another aspect of the present invention provides a liquid crystal display. The liquid crystal display device comprises a shirt color filter substrate, a thin film transistor array substrate, and a liquid crystal layer interposed between the color filter substrate and the thin film transistor array substrate. In addition, a plurality of gate lines, data lines, read lines, and singular elements are formed on the thin film transistor array substrate. Each of the read halogens further comprises the above-described halogen film transistor and the above-mentioned photosensitive element, wherein the switch film transistor, the pixel film transistor and the photosensitive member are preferably made of an amorphous germanium film transistor. Composition. [Embodiment] The embodiments of the present invention will be clearly described by the following description and detailed description. 8 200836090 As will be appreciated by those skilled in the art after the preferred embodiments of the present invention, the spring may be modified by the teachings of the present invention. And the modifications, and the spirit and scope of the invention. Referring to Figure 2, a schematic representation of a preferred embodiment of the photosensitive member of the present invention is shown. The photosensitive element comprises a switch TFT 210 and a photosensitive thin film transistor. Each of the thin film transistors includes a 1-pole electrode and two terminal electrodes. 〇de, also known as source/drain electrode, and the above-mentioned thin film transistor is integrated between two conductive lines, such as a switch line (sw extinguish 230 and read line). The gate electrode 212 of the switching thin film transistor 210 is connected to the switching circuit 23A, and the gate electrode 222 and the electrodeless electrode 224 of the photosensitive film transistor 220 are also connected to the switching circuit 230. The gate electrode of the switching film transistor 21〇 214 is connected to the source electrode 226 of the photosensitive film transistor 220. Further, the source turtle 216 of the switching film transistor 210 is connected to the reading line 240. Comparing the photosensitive member 200 with the conventional photosensitive member 100 of Fig. 1A, photosensitive The component 200 can bond the bias line to the switch line 23〇 without additionally connecting the bias line. Therefore, the number of metal lines in the thin film transistor array substrate can be effectively reduced. It is required to be connected between the switch line 23A and the read line 24A. Therefore, in one embodiment of the present invention, the thin film transistor array substrate of the liquid crystal display does not need a separate bias line, and the photosensitive element 2〇〇 only needs to be Connected to the two metal lines. Table 1··Photoelectric flow measurement 9 200836090

Among them, Vd is the measuring electrode of the photosensitive thin film electro-electrode electrode, and VG is the measuring voltage of the photosensitive film B-gate gate electrode. In the case of bri coffee, the ambient brightness is about 0 cd/m2. In the case of dark, the spleen ̄ 士 士人田人 ^, 将,, placed in a black I, to exclude other external light sources for measurement. Further, Table 1 is a measure of the photocurrent measured on the photosensitive member 200. The photocurrent measurement value is in the case of bright, with an environmental exemption of about 2150 Cd/m2, and in the case of (iv), it is placed in a black box to isolate In the case of other light sources. Referring to Table 1, when the v disk v tracing pill 0 XD VD increased, the photocurrent

(The difference of J is also increased at the same time. Since the gate electrode 222 of the photosensitive thin film transistor 220 and the gate electrode 224 are simultaneously connected to the switching line, it is lower than the conventional photosensitive element i 的Bias, the switch circuit 230 of the present invention can provide a higher voltage to the optical double-twisted 浔 窀 crystal 22 〇. Therefore, the light current in the case of bright and dark, the difference between the claws is also better than the conventional photosensitive element The difference between i and 〇〇 is large. Referring to Fig. 3, the current measurement curve of the different soils and brothers in a preferred embodiment of Figure 2 is shown. Vertical,,,,, T The measurement value of the non-photocurrent of the jade axis is early in Ampere (Ampere; Α), and the horizontal axis is the voltage difference between the source electrode and the drain electrode of the coating transistor 10 200836090. Curve 310 is a switch The buckling current curve measured by the thin film transistor in the case of dark. The curve 32〇 is the load curve of the photosensitive film transistor in the dark case. In addition, the curve 330 is the load of the photosensitive film transistor in the case of the bright case. Curve. The measurement data in Figure 3 is further organized. Disclosure. Table II based photosensitive member of the present invention the photosensitive film transistor 200. Thin film transistor and a photosensitive + current measuring value of the switching thin film transistor on in Table II.

Table 2: Photosensitive Film Transistor and Photosensitive Film Transistor W/L=48/5 Photo TFT Photo TFT + Switch TFT Dark 2.17E-06 8.28E-07 Bright 2.93E-06 9.85E-07 Ibright-Idark '~· _ _ ·Ί· 1 7.64E-07 1.57E-07 Unit: Ampere (A) where VD is the measuring voltage of the photosensitive thin film electromorphic electrode, and v G is the amount of photosensitive thin film transistor gate electrode The voltage is measured. In the case of bright, the environmental redundancy is about 21 50 cd/m2. In the case of dark, it is placed in a special box to exclude other external light sources for measurement. Further, Table 3 shows the current measurements of the TFT photosensitive film transistor of the conventional photosensitive member 1 and the photosensitive film transistor + switching film transistor. 200836090 Table 2 · Current measurement of photosensitive thin film transistor and photosensitive thin film transistor + 1 off film transistor

Η " _ 1 _ 二丨· Γ' - ___ P-, Photo TFT -----: Photo TFT + Switch TFT Dark 1.12E-09 1.10E-09 Bright 2.56E-08 2.41E-08 Ibright-Idark ^ _i-====== 2.45E-08 2.30E-08 _ ' I Unit: Ampere (A) where Vd is the measuring voltage of the photosensitive thin film electro-deuterium electrode, and vg is the optical Γ ' ^ 1 The measurement voltage of the gate electrode of the sensitive film transistor is about 2150 cd/m2 in the case of bright. In the case of dark, it is placed in a black box to exclude other external light sources for measurement. Further comparing Tables 2 and 3, where the current difference measured in the bright and dark environments, Ibrighr Idark, the current difference of the present invention is about 1 times larger than the conventional current difference. Therefore, the current difference of the photosensitive element 2〇〇 can be easily detected by the read line 240. In addition, the photosensitive element of the present invention can be combined with each general element or a part of a general pixel to form a read pixel, thereby enabling the liquid crystal display panel to provide touch and read. The function taken is also called the In-cell touch panel. The number of built-in photosensitive elements is determined by the resolution required for the touch function of the built-in touch panel. Referring further to Fig. 4A, there is shown a schematic circuit diagram of the first preferred embodiment of Fig. 2 applied to a read pixel. Among them, the read halogen is equipped with a thin film transistor array substrate (TFT substrate) of 12 200836090 placed/night crystal display. : ° The thin film transistor array substrate includes a plurality of gate lines and a plurality of feed lines formed thereon. These gate lines and data lines together define a plurality of elements. In order to simplify and clearly describe the read halogen of the present invention, FIG. 4A only shows a single read pixel which is combined with the gate line 420 and the data line 410, respectively, and omits the general element (the pixel which does not include the photosensitive element). ). The read halogen includes a halogen film transistor 450 and a photosensitive member 400. The halogen film transistor 450 is used as a switching element to control the charge required for the liquid crystal display. The drain electrode and the gate electrode of the halogen film transistor 450 of the liquid crystal display are connected to the data line 410 and the gate line 420, respectively. The photosensitive element 400 includes a photosensitive film transistor 430 and a switching film transistor 435 coupled between the gate line 421 and the read line 440. Therefore, the read pixel of the present invention does not require an additional bias line to provide the voltage required for the photo-sensitive thin film transistor 430 and the switching thin film transistor 435 to generate photocurrent. Therefore, the aperture ratio of the liquid crystal display having the read pixel of the present invention can be effectively improved. In addition, as described above, since the photocurrent difference of the present invention is larger than that of the conventional photosensitive element, the photocurrent difference can be easily measured by the reading circuit. Therefore, the size of the photosensitive member of the present invention can be further reduced as a result. Moreover, the number of photosensitive thin film transistors that utilize the tandem connection to increase sensitivity to light changes can also be reduced. Referring to Fig. 4B, there is shown a schematic circuit diagram of the first preferred embodiment of Fig. 2 applied to another read pixel. The read pixel of Fig. 4B is similar to the read pixel of Fig. 4A, and also includes a halogen film transistor 450a and a photosensitive element 13 200836090 piece 400a. However, the photosensitive element 400a is connected between the gate line 420a and the read line 440a, and the gate electrode of the halogen film transistor 450a is also connected to the gate line 420a. Therefore, it can be seen from the above-mentioned 4A and 4B that the pixel thin film transistor and the photosensitive element of the present invention can be connected to the same gate line or different gate lines, and can effectively measure the light brightness. The change. Fig. 5A is a schematic circuit diagram showing the first preferred embodiment of Fig. 2 applied to another read pixel, and Fig. 5B is a view showing a normal pixel of the liquid crystal display having no photosensitive element. In general, a liquid crystal display having a touch function includes a reading element and a general element, wherein the reading element has a photosensitive element, and the general element does not have a photosensitive element. Conventional photosensitive elements typically utilize a common line as a bias line to provide the voltage required for the photosensitive thin film transistor. However, between the read line and the source electrode of the pixel thin film transistor, a capacitance (Cps; not shown) is thus generated. Therefore, the general storage capacitor (Cst) of the halogen must therefore be increased to compensate for the extra capacitance (Cps) in the read pixel. It will thus cause the aperture ratio of the liquid crystal display having the photosensitive member to be limited. A liquid crystal display having a read pixel according to a first preferred embodiment of the present invention, the read capacitor storage capacitor (Cst) 552A can be disposed on the source electrode and the read line of the halogen film transistor 550A. Between 540, it can also be called Cst on readout line (Cst on readout line). In addition, the general storage capacitor (Cst) 552B can be disposed between the source electrode of the halogen film transistor 550B and the gate line 521, so it can also be called Cst on the gate line (Cst on Gate line). Therefore, the liquid crystal display having the read pixel of the present invention can effectively remove the common line from the thin film substrate 2008 20089090. Therefore, the aperture ratio of the liquid crystal display having the read halogen of the present invention can be effectively improved. Referring to Figure 6, there is shown a second preferred embodiment of the photosensitive member of the present invention. The photosensitive member 6A includes a switching film transistor 610 and a photosensitive film transistor 62A. Wherein, the source electrode 616 of the switching thin film transistor 610 is connected to the read line 64A, and the switching film is electrically connected. The gate electrode 612 of the crystal 610 is connected to the switch line 63A. The drain electrode 614 of the switching film transistor 610 is connected to the source electrode 626 of the photosensitive film transistor 〇 62 。. The gate electrode 622 of the photosensitive film transistor 620 is connected to the switch line 63A, and the drain electrode 624 of the photosensitive film transistor 62 is connected to the conductive line 65A. When the photosensitive element 6 is used in some or all of the pixels of the liquid crystal display, the switch line 63 can use the gate line of the liquid crystal display, and the conductive line 65 can use the liquid crystal display as the common line. Or gate line. Table 4 shows the current measurements of the photosensitive film transistor. $4: The electric conductivity measurement of the Limin thin film transistor W/L=48/5; Vd=5V Vg = 5V VG=10V Vg=15V Dark 2.34E-08 7.88E-07 2.31E-06 Bright 3.98E -07 1.85E-06 3.71E-06 ^bright'Idark 3.75E-07 1.07E-06 1.4E-06 Unit: Ampere (a) where Vd is the measuring voltage of the photosensitive thin film electro-deuterium electrode, and Vg It is the measuring voltage of the gate electrode of the photosensitive film transistor. In the case of Bright 〇 15 200836090 环境, the ambient brightness is about 215 〇..., it is placed in a black box to exclude other external light sources. Measure. The electric difference value (Ibright"*Idark) is connected to the switch line 630 by the gate electrode 622 of the photosensitive film transistor 62q, that is, relative to the conventional liquid

• The drive voltage of the photosensitive element 100 of the crystal display, which typically provides a V • higher voltage, so that the current difference (IbrlghrIdark) will therefore increase VG and facilitate the measurement of the line 640. (Fig. 7 is a schematic view showing a third preferred embodiment of the photosensitive member of the present invention. The photosensitive member 700 comprises a switching thin film electrode 710 and a photosensitive film transistor 720. Switching film transistor The source electrode 716 of 71 turns is connected to the read line 74A, and the gate electrode 712 of the switch film transistor is connected to the switch line 73. The gate electrode 714 of the switch film transistor 710 is connected to the photosensitive film transistor 72. The source electrode 726 of the germanium. The gate electrode 722 of the photosensitive thin film transistor 72 is connected to the conductive line 750, and the drain electrode 724 G of the photosensitive thin film transistor 72 is connected to the switch line 730. When the photosensitive element 700 is applied In the case of some or all of the pixels in the liquid crystal display state, the switch line 73A can utilize the idler line 'which is not the liquid crystal j', and the conductive line 75 can use the liquid crystal display, the pass line or the gate line. Table 5 shows the current measurement of the photosensitive film transistor.

W/L=48/5 ; V

VD=l〇V

:15V 16 200836090 - - --- Dark 2.34E-08 2.81E-08 3.26E-08 Bright 3.98E-07 4.72E-07 5.06E-07 Ibright'Idark ~ — _ 3.75E-07 ~~~ _ 4.44 E-07 4.74E-07 — Unit: Ampere (A) where VD is the measuring voltage of the photosensitive thin film electro-deuterium electrode, and VG is the measuring voltage of the photosensitive 4 貘 transistor gate electrode, in the case of The lower brother is about 2150 cd/m2, and in the dark case, it is placed in a -black box to exclude other external light sources for measurement.

The difference in Ibright_idark is also enhanced, and the drain electrode 724 of the photosensitive thin film transistor 720 is connected to the switch line 73, so that a higher voltage can be supplied to the drain electrode of the photosensitive thin film transistor 720. 724, relative to the voltage of the conventionally driven photosensitive element 丨〇〇. Therefore, its current difference can be amplified and easily measured by the read line 74.

The pixel thin film transistor, the switch thin film transistor, and the photosensitive thin film transistor of the present invention are preferably composed of an amorphous silicon oxide transistor. Since the amorphous germanium thin film transistor is sensitive to light irradiated thereon, the photosensitive thin film transistor of the present invention can be formed on the thin film transistor array substrate, and the brightness of the light irradiated thereon is changed. That is, the relative difference in the brightness of the light on it. The photosensitive film transistor can also be a photodiode that senses the brightness of the light that is incident thereon and is connected between the switching film transistor and the switching line. That is, the photosensitive member can be composed of a switching thin film transistor and a photosensitive diode. Alternatively, the photosensitive thin film transistor can be replaced by a photoresistor that senses the brightness of the light that is incident thereon and is connected between the switching thin film transistor and the switching line. Therefore, the photosensitive member can be composed of a switching thin film transistor and a photoresistor. Therefore, the photosensitive element can be composed of a switching thin film transistor and an optical debt measuring component, and the optical detecting component can be, for example, a photosensitive thin film transistor, a photosensitive diode or a photoresistor. The component can control the magnitude of the current flowing therethrough, and therefore, the liquid crystal display having the read pixel can measure the difference in light irradiated thereon by using the photosensitive member of the present invention. The photosensitive member of the present invention can be disposed not only between the read line and the switch line to effectively simplify the complexity of the circuit required for the photosensitive element, but also effectively increase the current difference so as to measure the illumination thereon. The difference in brightness of the light can also increase the aperture ratio of the liquid crystal display having the read pixel. The photosensitive member of the present invention can also utilize a switching circuit to provide a higher voltage on the gate electrode or the drain electrode of the photosensitive film transistor to increase the current difference and conveniently measure the difference in brightness of the light irradiated thereon. Therefore, the photosensitive ruthenium film transistor of the present invention can effectively increase the difference in current to easily measure the difference in brightness of light thereon. The above-mentioned switching thin film transistor or the two-terminal electrode of the photosensitive thin film transistor, the source electrode and the drain electrode are exchangeable, and the above description is only convenient for clearing the structure and the combined relationship of the edge. It is not intended to limit its scope. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Modifications or modifications are intended to be included in the scope of the claims below. 18 200836090 BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; The current-type photosensitive element of the display; the first B-picture is a charge-type photosensitive element of a conventional liquid crystal display; the second figure shows the intention of the first preferred embodiment of the photosensitive element of the present invention, FIG. The current measurement curve diagram of the first preferred embodiment of FIG. 2 in different environments is shown; FIG. 4A shows the second diagram of the second embodiment - the preferred embodiment is applied to a schematic circuit diagram for reading a pixel FIG. 4B is a schematic circuit diagram showing the first preferred embodiment of FIG. 2 applied to another read pixel; FIG. 5A is a view showing the first preferred embodiment of FIG. 2 applied to another read; FIG. 5B is a schematic diagram showing a normal pixel of a liquid crystal display; FIG. 6 is a schematic view showing a second preferred embodiment of the photosensitive member of the present invention; and FIG. A schematic view showing a third preferred embodiment of the photosensitive member of the present invention[Main component symbol description] 521 ·• Gate circuit 540: Reading line 550A ··Pixel film transistor 550B: Picture film transistor 100: Photosensitive element no: Photosensitive film transistor 112: Gate electrode 114 ·&gt And the electrode 19 200836090 116 : the source electrode 120 : the bias line 130 : the switching film transistor 132 : the gate electrode 134 : the drain electrode 13 6 : the source electrode 140 : the read line 150 : the switch line . Photosensitive element 210: Switching film transistor 212: Gate electrode 214: Bipolar electrode 216: Source electrode 220: Photosensitive film transistor 222: Gate electrode 224: Gate electrode 226: Source electrode 230: Switching line 240 : Reading line 310: curve 320: curve 330: curve 400a: photosensitive element 400: photosensitive element 410: data line 552A: reading storage capacitor 552B: storage capacitor 600 of normal pixel: photosensitive element 610: switching film The transistor 612: the gate electrode 614 · and the electrode 616 : the source electrode 620 : the photosensitive film transistor 622 : the gate electrode 624 : the drain electrode 626 : the source electrode 630 : the switch line 640 : the read line 6 5 0 · Conductive line 700: photosensitive element 710: switching thin film transistor 714: drain electrode 716: source electrode 720: photosensitive thin film transistor 722: gate electrode 724: drain electrode 726: source electrode 730: switch line 740: read line 750: Conductive line 20 200836090 420a: Gate line 420: Gate line 4 21: Gate line 430: Photosensitive film transistor 435: Switching film transistor 440a: Reading line 440: Reading line 450a: Alizarin film electric Crystal 450: pixel thin film transistor 800: photosensitive element 810: read line 820: switch line '830: bias line 840: switch film transistor 850: photosensitive film transistor 860: capacitor

twenty one

Claims (1)

200836090 X. Patent application scope: 1_ A photosensitive element comprising at least: a first conductive line; a second conductive line; a switching film transistor having a first gate electrode, a first end electrode and a second end An electrode, wherein the first gate electrode is electrically connected to the first conductive line, and the first end electrode is electrically connected to the second electric line; and the x' photodetecting element is electrically connected to the Between the first conductive line and the second electrode. 2. The photosensitive member of claim 2, wherein the photodetecting element comprises a photosensitive thin film transistor having a -: a gate electrode, a second terminal electrode, and a fourth terminal electrode. A photosensitive member according to claim 1, wherein the photosensitive member is disposed on a substrate. 4. The photosensitive member according to claim 3, wherein the substrate is a thin film transistor array substrate of a liquid crystal display. The photosensitive member of claim 2, wherein the first electrode and the fourth terminal electrode are electrically connected to the first conductive line, and the second terminal electrode is electrically connected to the second end electrode. The light-sensitive element of claim 2, wherein the first conductive line, the fourth terminal electrode is electrically connected, and the third terminal electrode is electrically connected to the sixth gate electrode. This is connected to the second terminal electrode of a third conductive line. 7. The photosensitive S-piece of claim 2, wherein the first pole is electrically connected to 4=a third conductive line, the fourth end electrode is a conductive line, and The third end electrically charges the second terminal electrode. a light-sensitive two-component photosensitive member, wherein the light, the (five) body and the open-film transistor are both - the amorphous film C-crystal contains 10. - a read halogen, which is used in a liquid crystal display. The reading book element comprises: a halogen film transistor disposed on a substrate of the liquid crystal display; a photosensitive element disposed on the substrate, wherein the photosensitive earth, a first conductive line; a second conductive line; a switching film transistor having a first gate electrode, a first end 23, a 200836090 electrode, and a second terminal electrode, wherein the first conductive Thunder % _ $ electrode is electrically connected to the electric circuit; and the electrode is electrically connected to the The second light-detecting element is electrically connected between the first poles. The V-electric circuit and the second terminal are electrically connected to the gate electrode, wherein the reading light m component comprises a photosensitive film transistor having a first, a second, and a second terminal electrode. And a fourth terminal electrode. 12·If the patent application scope is the first 〇+主Μ, only the corpse 7 is the master of the book, and the medieval mysterious film transistor contains a second-/, Ning 4, a brother-electrode is electrically connected to the One of the substrates is a gate line, and the first step of the conductive circuit is a second one of the substrate, and adjacent to the first gate line. Chasin =? Please read the sample of the 10 items of the patent (4), in which the halogen film is packaged into one, and the first conductive layer is electrically connected to the substrate. 'L Hai's first conductive line is the substrate-gate line 路 申 π patent|&amp; 1 (帛11 item of reading pixels, wherein the first pole electrode and the far fourth end electrode are electrically Connecting to the first conductive line and the third end electrode of the δ hai are electrically connected to the second end electrode. wherein the · 24 is as described in the scope of the patent scope, the second gate electrode is Connected to the third electrical connection to the third conductive line to the second terminal electrode. The electrical circuit, the fourth terminal electrode, and the second terminal electrode are electrically connected to each other as in claim 15 The reading of the halogen, wherein the second conductive circuit is a common line of the substrate. C. The reading pixel of the 11th rhyme, wherein the fourth pixel is connected to a third conductive line, the fourth terminal electrode is 4 - a conductive line, and the third terminal electrode is electrically connected to the second terminal electrode. The third reading of the reading element according to claim 17, wherein the conductive line is a common line of the substrate a. As described in the patent application _ u, read the 昼素,发中中〇_膜电The film, the halogen film transistor, and the photosensitive film transistor are both amorphous germanium film transistors. 20, as described in claim 10, wherein the upper light detecting element comprises a photosensitive diode and a photosensitive resistor of the 21st liquid crystal display, comprising at least: a substrate; 25 200836090 a plurality of gate lines and a plurality of data lines intersecting each other and disposed on the substrate; and a plurality of first conductive lines Disposed on the substrate; and a plurality of read halogens disposed on the substrate, wherein the read halogen comprises: a halogen film transistor; and a photosensitive element, wherein the photosensitive element further comprises: a crystal having a first gate electrode, a first terminal t-pole, and a second terminal electrode, wherein the first gate electrode is electrically connected to the "C-% pole line" and the first terminal electrode Electrically connected to one of the first conductive lines; and a light detecting element is connected between the one of the gate lines and the second end electrode. ' : 22. As claimed in the patent scope 21 item The liquid crystal display further includes a plurality of general pixels, and does not have the photosensitive element. The liquid crystal display according to claim 21, wherein the photodetection 7 element comprises a photosensitive film. The liquid crystal display of the second gate electrode and the fourth terminal electrode of the second gate electrode, wherein the second gate electrode and the fourth terminal electrode are electrically And the third terminal electrode is electrically connected to the second terminal electrode. 26 200836090 25 · The liquid crystal display according to claim 23, further comprising plural (4) two conductive lines are disposed on the substrate, wherein the second gate electrode is electrically connected to the gate lines of the pads, and the (four) four-terminal electrodes are electrically connected to the second conductive lines. And the third terminal electrode is electrically connected to the second terminal electrode. The liquid crystal display of claim 25, wherein the second conductive line is a common line of the liquid crystal display. The liquid crystal display of claim 23, further comprising a plurality of second conductive lines disposed on the substrate, wherein the second polarity is electrically connected to the second conductive lines, The fourth terminal electrode is electrically connected to the one of the gate lines, and the third terminal electrode is electrically connected to the second terminal electrode. The liquid crystal display according to claim 23, wherein the 〇 ^ _ thin film transistor, the pixel thin film transistor, and the photosensitive thin film electric hydride are both amorphous thin film transistors. The liquid crystal display of claim 21, wherein the halogen film transistor has a third gate electrode electrically connected to the other gate lines. Some of the gates - 〇: as shown in the patent application 帛 21, the liquid crystal display ^ 4 pixel thin film transistor has a third gate electrode electrical connection 3 27 200836090 pole line one of them. 3 L The liquid crystal display of claim 21, wherein the photodetection 70 comprises one of a photodiode and a photoresistor. 2. The liquid crystal display according to claim 21, wherein the liquid crystal display further comprises: the first storage capacitor is disposed on one of the two end electrodes of the pixel thin film transistor and the first A conductive line is between them. ° () 33 λ • The liquid crystal display of claim 32, which further includes a plurality of I-picture pixels, does not have the photosensitive element. 34·如上)·A Please refer to the liquid crystal display according to item 33 of the patent scope, wherein each of the general Jin Xi Si Jing further includes a second storage capacitor disposed in the general element a, one of the two ends of the electric body and one of the gate line basins. Eight U 28